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    • 专利摘要:
    electric parking lock actuator for triggering a parking lock on a vehicle. An electric parking lock actuator (10) has a gear mechanism (34) received in a housing (32) which is operable by means of the electric motor and serves to convert a rotational movement to an axial movement of a rod. drive (38) carrying a drive element (26) for the parking lock acting in conjunction with the gear mechanism. The latter can be moved in normal operation by the gear mechanism by means of an electric motor from an unlocking position to a locking position and vice versa and is pre-tensioned by means of a spring element (40). ) towards the lock position. A locking mechanism (42) is used to hold the drive bar in its unlocking position against the force of the spring element that acts as an energy storage and has for this very compact design a locking disk (46). drive coupled to the gear mechanism with a contour (48) which forms in one direction of rotation of the locking disc an impact surface for a restraint system. For emergency operation, the impact surface may be released by the restraint system so that the drive bar, depending on the force of the spring element, moves without support from the electric motor to the locked position.
    公开号:BR102017026409A2
    申请号:R102017026409-2
    申请日:2017-12-07
    公开日:2018-11-06
    发明作者:Wilhelm Heubner；Sonja Lenke；Katrin Ebert
    申请人:Fte Automotive Gmbh；
    IPC主号:
    专利说明:

    (54) Title: ELECTRIC PARKING LOCK ACTUATOR FOR THE ACTIVATION OF A PARKING LOCK IN A VEHICLE (51) Int. Cl .: B60T 13/74; F16D 65/14; F16H 63/34; F16H 61/32.
    (52) CPC: B60T 13/746; F16D 65/14; F16H 63/3441; F16H 63/3466; F16H 63/3491; (...)
    (30) Unionist Priority: 12/7/2016 FROM 10 2016 014 523.4.
    (71) Depositor (s): FTE AUTOMOTIVE GMBH.
    (72) Inventor (s): WILHELM HEUBNER; SONJA LENKE; KATRIN EBERT.
    (57) Abstract: ELECTRIC PARKING LOCK ACTUATOR FOR THE ACTIVATION OF A PARKING LOCK IN A VEHICLE. An electric parking lock actuator (10) has a gear mechanism (34) received in a compartment (32), which is operable by means of the electric motor and serves to convert a rotational movement to an axial movement of a rail. drive (38) which carries a drive element (26) for the parking lock that acts in conjunction with the gear mechanism. The latter can be moved, in normal operation, by the gear mechanism by means of an electric motor from an unlocked position to a locked position and vice versa and is pre-tensioned by means of a spring element (40 ) towards the locked position. A locking mechanism (42) serves to hold the actuation bar in its unlocked position against the force of the spring element that acts as an energy store and has, for this purpose, in a very compact design, a locking disk (46) connected by drive to the gear mechanism with a contour (48), which forms, in only one direction of rotation of the locking disc, an impact surface for a retention system (...).

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    DESCRIPTIVE REPORT
    ELECTRIC PARKING LOCK ACTUATOR FOR THE ACTIVATION OF A PARKING LOCK ON A VEHICLE
    TECHNICAL FIELD [001] The present invention relates to an electric parking lock actuator for activating a parking lock in an automobile according to the preamble of claim 1. In particular, the invention relates to an electric actuator of parking block, as it is recently used in automobiles with electric camshafts, hybrid gears and modern automatic gears (automatic gearbox) in much of the automobile industry. STATE OF THE TECHNIQUE [002] Parking locks are particularly necessary, then, when an engine self-locking (control) effect cannot be used to secure the car. A blockage of the powertrain then occurs, generally, by a parking locking wheel that has a jagged disposition fixed in an output shaft of the gear, which can be blocked by positive union through a lock of the parking block arranged articulated in a parallel axis in the toothing, and the parking lock lock must be oscillated against the force of a replacement spring, which pre-tensiones the parking lock wheel of the parking lock wheel, moving away to an unlocked position. For this purpose, in addition to hydraulic parking block actuators, electric actuators can also be used to produce a linear movement, whereby a drive element, for example, in the form of a shoulder or a cone, is movable against the parking lock latch to swing it. To ensure that the parking lock also prevents the car from sliding when the
    Petition 870180002896, of 12/01/2018, p. 55/105
    2/32 parking, during the actuation, cause a movement against a tooth of the parking block wheel, without reaching a positive union with the indentation, in the actuation element there is also an energy store (successor spring), which , in the event of a car slip by the drive element, it moves the parking lock latch upwards so that it engages with the teeth of the parking lock wheel. In addition, an emergency actuation mechanism is provided that allows, in case of failure of the actuator, an insertion of the parking block.
    [003] In the state of the art, there is no lack of suggestions for performing these functions on an electric parking lock actuator. In this way, the US 5,704,457 brochure reveals an electric drive device for a parking lock, the lock of the parking lock on which, on its side away from the parking lock wheel, has a bounce surface against which it can be A pressure cylinder was brought from the drive device to turn the parking lock lock. The pressure cylinder can be attached to one end of a pressure lever rotatable on an axis, which acts in conjunction with a control lever arranged rotatable on the same axis by a torsion spring, as an energy store (successor spring) ). The control lever can be swung to activate the parking lock by means of a connecting rod, which can be moved axially by means of an axial gear mechanism, which comprises an eccentric disc, in which the connecting rod is articulated, and for the rotation of the eccentric disk, a multi-level straight pinion gear, which in turn can be driven by an electric motor. In the straight pinion gear, a first free wheel is provided that allows, in addition to the electromotor drive, also a manual activation of the gear mechanism. The gear mechanism therefore allows to be activated for activation and deactivation
    Petition 870180002896, of 12/01/2018, p. 56/105
    3/32 of the parking block, only in one direction of rotation. In order to receive, in the activated state of the parking lock, the forces acting on the replacement spring in the lock of the parking lock and the torsion spring (successor spring) between the pressure lever and control lever, the eccentric disc is provided with a second freewheel that prevents a return of the eccentric disk.
    [004] In the event of an electric motor failure, the eccentric disk for activating the parking lock can be manually rotated by means of a drive mechanism comprising several levers and a flexible control cable.
    [005] A disadvantage of this state of the art can be seen in the construction of a complex proportion of the drive device. It would also be desirable if, in the event of an electric motor failure, an emergency activation of the parking block with stored energy could occur.
    [006] Such a parking block arrangement is known, for example, from the brochure that forms the preamble to the patent claim 1 DE 10 2010 054 911 A1. In that parking block arrangement, in a normal activation, the activation of the parking block by a rotation movement transmitted by a straight pinion gear produced by means of an electric motor, which is converted, with the aid of a sliding element, into a translational movement and is transmitted in a pre-tensioned drawbar by means of a spring element in the direction of the lock. The translational movement of the drawbar acts on a drive element with an oblique surface (cone), which is provided for the activation of the parking block lock. More precisely said, in this state of the art, the axial advance of the torsion-safe drawbar occurs through a slide data attached to the drawbar, which is conducted in a sliding channel of the
    Petition 870180002896, of 12/01/2018, p. 57/105
    4/32 slide element operable by means of the electric motor supported by gears. In this case, the end position of the sliding channel assigned to the unlocking position is located after an upper dead point of the sliding channel, which therefore has a negative slope in that area, so that, through the spring element, the bar pre-tensioned drive is blocked on the sliding element in the unlocked position. To reach the locking position of the drawbar, the slide element is rotated by means of the electric motor, and the slide data crosses the upper dead center of the slide channel and, therefore, the drawbar moves with the spring element support, to the locked position until the slide data reaches a lower terminal position in the slide channel. From that lower terminal position in the slide channel, the slide data - and with that, the drawbar, from its locking position - can be moved again only by reversing the direction of rotation of the electric motor, to arrive again to the unlock position.
    [007] To activate the parking block in an emergency drive, when the standard drive unit, that is, the electric motor drive is inoperative, the parking block arrangement indicated above also features an emergency drive unit that it can impact the sliding element with a torque. For this purpose, the sliding element has an arrangement surface for normal operation by a spring of the pressure bar of the pre-tensioned pressure bar of the emergency drive unit. In addition, a retaining bar is provided which, for fixing the pre-tensioned pressure bar by springs, engages in a cavity in the pressure bar. An electromagnetic lifting actuator of the emergency drive unit engages at the end of the retaining bar away from the pressure bar and allows it to be pulled, during power supply, from the cavity
    Petition 870180002896, of 12/01/2018, p. 58/105
    5/32 of the pressure bar, in order to release the pressure bar, on which the last sliding element rotates due to the force of the pressure bar spring. This rotating movement of the sliding element again allows for a translational movement of the spring tensioned tension bar in order to finally activate the parking locking latch. The unlocking of the parking lock, as well as the tension of the spring of the pressure bar of the emergency drive unit occurs by means of an electric motor.
    [008] In order to allow an emergency operation, in this state of the art, therefore, a plurality of additional components is necessary, which, finally, is not due to the circumstance, that, in the sliding element, a higher torque in proportion needs to be applied, so that the slide data, against the force of the spring element on the drawbar, exceeds the upper dead center of the slide channel, on which the spring element on the drawbar acts first in the locking direction . Due to the number and relative position of the additional components of the emergency drive unit required for the function, more space is also required. Finally, the necessary reverse operation of the electric motor also results in more costs.
    DESCRIPTION OF OBJECTIVES [009] The invention aims to develop an electric parking lock actuator formed in the simplest possible way to activate a parking lock in an automobile that allows, in the event of an electric motor failure, a emergence of the parking block with stored energy, however, built compactly in relation to the state of the art portrayed and which avoids, with a reverse operation of the electric motor, the associated disadvantages.
    REPRESENTATION OF THE INVENTION [0010] This objective is solved by
    Petition 870180002896, of 12/01/2018, p. 59/105
    6/32 characteristics specified in the patent claim 1. Suitable improvements and advantages of the invention are the subject of claims 2 to 15.
    [0011] In an electric parking lock actuator for activating a parking lock in an automobile, which comprises a gear mechanism incorporated into a compartment, which can be rotated by means of an electric motor that serves to convert a movement of rotation for an axial movement of a drive bar that carries a drive element for the parking lock that acts in conjunction with the gear mechanism, which is displaceable, in normal operation, by the gear mechanism driven by the electric motor of the unlocking position to a locking position and vice versa and is pre-tensioned by means of a spring element in the direction of the locking position, and a locking mechanism is provided, which serves to keep the actuation bar in its release position against the force of the spring element and can be released for emergency operation in a selected way by means of a restraint system in such a way that the actuation bar moves according to the force of the spring element without support of the electric motor to the locked position; the locking mechanism has, according to the invention, a locking disc that connects to the gear mechanism by actuation, which can be activated, in normal operation by an electric motor in a first direction of rotation and has a contour that interacts with the retention system, which allows, in the first direction of rotation, a rotation of the locking disc that depends on the retention system and forms, in a second direction of rotation opposite, an impact surface that can be moved against the retention system , when the locking disc assumes a rotation position, in which the actuation bar is in its unlocked position, and in emergency operation, the impact surface can be released by the retention system in such a way that the disco
    Petition 870180002896, of 12/01/2018, p. 60/105
    7/32 lock rotate to the second rotation position, while the actuator bar moves to the lock position.
    [0012] Due to the fact that the contour of the locking disc that interacts with the retention system, in the first direction of rotation, allows a rotation of the locking disc independent of the retention system, consequently, compared to the state of the art formed generic, in the first direction of twist, has no end or any limitation, the gear mechanism connected by actuation to the locking disc can, by means of the electric motor, be rotated continuously in one and the same direction of rotation of the electric motor. In this case, the actuation bar that acts in conjunction with the gear mechanism moves from its supported release position, through the force of the spring element, to its locking position and from there, again against the force of the element spring, to its unlocked position, in which the spring element acts particularly as an energy store for emergency operation. With this, the electric motor, in normal operation, can move the actuation bar and the actuation element provided in it for the parking lock, axially for all function positions, without the need for reverse operation. of the electric motor. Therefore, the electric motor can be advantageously optimized for a quadrant operation, for which the electronic part of the electric motor control can be easily formed. In this way, any inversion is avoided and associated disadvantages, such as, for example, wear on the gear mechanism, are avoided.
    [0013] Only in the second direction of rotation of the locking disc does its contour form the impact surface for the retention system by which the locking disc can be held in the unlocked position without energy against the force of the spring element on the bar drive. For emergency operation, the restraint system needs to be activated, therefore, for the release of the impact surface, so
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    8/32 the locking disc, due to the force of the spring element, rotates to the second direction of rotation and, thus, the actuating bar moves to its locked position. Compared to the state of the art formed in a generic way, a previous override of a dead point using more energy available for emergency operation is not necessary, so that - in addition to the restraint system - additional components for the emergency operation, as well as associated costs and increased space requirements. As a result, the actuator of the parking block can be formed, unlike the one portrayed by the state of the art, in a more simple and compact way.
    [0014] Basically, it is possible, for converting the number of revolutions, to insert a straight pinion gear or an endless spiral gear in the gear mechanism. It is preferred if the gear mechanism comprises a planetary gear that converts the number of revolutions of the planetary gear drive produced by means of the electric motor into a smaller number of outward revolutions of the planetary gear. A planetary gear, aligned on the drive and the output, advantageously presents a very compact form of construction. With respect to a lower drive torque of the electric motor and a high angular resolution of rotation in measurements, however, short, the planetary gear is formed, preferably, in two levels, with a first gear level and a second gear level. A very compact formation of the parking lock actuator is still necessary on that occasion if the locking disc is arranged between the first gear level and the second gear level.
    [0015] Advantageously, the planetary gear can have a wheel with an internal gear, which is cast by injection of synthetic material in one piece with the compartment, which allows a very economical production and, in addition, is responsible for a much lower weight of the parking lock actuator. Also the wheels
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    9/32 planetary gears can consist of synthetic material, which can be produced simply and economically with straight indentations, as well as, due to the internal cushioning of the synthetic material, they are also sufficiently quiet.
    [0016] Different concepts are possible to convert, through the gear mechanism, the rotation movement of the electric motor to the axial movement of the actuation bar. In this way, a centrally actuated shoulder can interact with the appropriate guided actuation bar. Particularly in relation to a simple constructive configuration with lower production costs, it is preferred if the gear mechanism has a crank arm in which the actuation bar is eccentricly hinged. In the case of a planetary gear for advantageously converting the number of revolutions, the planetary support of the planetary gear can form the crank arm.
    [0017] The locking disc can easily be produced as a fine-cut or steel part or as a part formed by injection of a high performance synthetic material, when the contour is formed on the outer circumference of the locking disc - on the contrary, by example, of a sliding cavity that starts from the front side to the locking disc - and the impact surface of the contour in relation to a axis of rotation of the locking disc has an inner radial edge and an outer radial edge, contour runs through the circumference of the blocking disc, seen between the inner radial edge and the outer radial edge of the impact surface, at least partially, in the form of an Archimedes' spiral. This increases the contour surface of the blocking disk that interacts with the retention system, seen in the first direction of rotation, which departs from the impact surface by a continuous and simple rotation of the blocking disk, until the impact surface is reached again, so if
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    10/32 avoids high accelerations in the retention system in the direction of release and no mass forces are created that impair smoothness.
    [0018] Preferably, the impact surface of the contour in relation to a radial plane that runs along the axis of rotation of the locking disk tilts at a minimum, for example, at an angle of 3 o to 4 o , so that the internal radial edge of the impact surface, seen in the direction of rotation of the locking disc, is located before the external radial edge of the impact surface. As a result, it is advantageous - compared to a possible radial orientation, similarly, of the impact surface - forces to be applied only much less by the retention system, to release the impact surface in the operation of emergency for a rotation of the locking disc for the second direction of rotation.
    [0019] In principle, it is possible to provide, as a retention system, a small arrangement of cylinder and hydraulic piston, previously tensioned by spring with a piston axis that interacts with the impact surface of the locking disc, or also just a bar pre-tensioned by spring in the direction of the contour in the locking disc, which can be removed by a flexible control cable or similar, from the contour, in order to release its impact surface. Particularly in relation to lower costs and the contemplated use of the parking lock actuator in a car with a (partially) electric drive, it is preferred, however, if, in the retention system, it is a lifting electromagnet, with a axially movable immersion core, surrounded by a coil fixed to the compartment, which has a contact end opposite the contour of the locking disc and is previously tensioned by means of a pre-tensioning spring in the direction of the contour, with the end of contact is in a non-energized state of the coil in the contour, in such a way that it is possible to engage with the impact surface of the
    Petition 870180002896, of 12/01/2018, p. 64/105
    11/32 contour and in an energized state of the coil against the force of the previous tension spring is removed from the contour in order to release its impact surface. Such lifting magnets are economically accessible and are commercially available without problems and have a favorable energy balance, since the electrical control of the lifting magnets always occurs very briefly, namely when, in the emergency operation of the actuator from the parking block, the impact surface of the blocking disk is released to allow, under the actuation force of the spring element on the actuation bar, a rotation of the blocking disk for the second direction of rotation and thus a displacement axial of the actuation bar to the locked position. Another advantage of using a lifting magnet is that the coil inductivity can be detected by electronic means, to determine the position of the immersion core. Thus, position information in relation to the retention system can be obtained in a simple and simple way - retaining or releasing the locking disc.
    [0020] Advantageously, the actuator compartment of the parking lock can also be provided in one piece with a flange for attachment to a gear compartment, which has a central opening through which the actuation bar that carries the element drive and the spring element extend outward. In this way, the actuator of the parking lock can be easily fixed by flange externally in the gear compartment; it is not necessary to receive components of the parking lock actuator in the gear compartment.
    [0021] Particularly in relation to a lesser need for space, as well as a simpler possibility of assembly and connection of a parking lock actuator provided and previously mounted as a module on a gear, it is also preferred, if, in the compartment of the parking lock actuator
    Petition 870180002896, of 12/01/2018, p. 65/105
    12/32 an electronic module is integrated which comprises at least one electronic means necessary for the control of the electronic motor and an interface component for the electronic contact of a parking lock actuator, the gear mechanism in the compartment being separated by an intermediate cover of the module of the electronic medium, which is sealed, in this part, against the environment by means of an external cover fixed in the compartment. Advantageously, the intermediate cover, on this occasion, can also maintain a bearing in the compartment (second function of the intermediate cover), by means of which a part of the gear mechanism, for example, the crank arm previously indicated, is placed in rotating shape, opposite the friction arm of the compartment.
    [0022] Finally, in the parking block actuator compartment, a sensor arrangement for recording the positioning of the actuation bar can also be integrated, advantageously protected, with a sensor element and a signal element provided for in electronic media module, which, in the area of the eccentric articulation of the actuation bar on the crank arm, is joined to the actuation bar or crank arm and, through the sensor element, can be detected by the intermediate cover, to record by the minus the unlocking position and the locking position of the actuation bar, possibly also its lifting path that runs between them. This measure is also beneficial in particular to a lesser need for space on the parking block actuator.
    BRIEF DESCRIPTION OF THE DRAWINGS [0023] In the following, the invention is clarified in more detail on the basis of an example of the preferred modality with reference to the attached drawings, partially diagrammed. The drawings show:
    [0024] Figure 1 is a perspective view of an electric parking lock actuator according to the invention in its use situation, shown here only
    Petition 870180002896, of 12/01/2018, p. 66/105
    13/32 schematic form, in a parking lock that can be actuated by an actuating rod axially displaced from the parking lock actuator in an upper / front oblique way, with respect to an electric motor fixed by flange in a locking actuator compartment parking for normal operation of the parking lock actuator;
    [0025] Figure 2 is a perspective view of the parking lock actuator according to Figure 1 oblique bottom / front right, with respect to an electromagnetic retention system fixed in the same way, in the compartment, for an emergency operation of the actuator the parking block mediated by an energy store in the form of a spring element, which pre-tensiones the actuation bar in the direction of its blocking position;
    [0026] Figure 3 a discontinuous side view in the area of the electric motor along the middle axis of the electric motor and the retention system, partially discontinuous, as well as, in the drawing plane, rotated around 90 ° clockwise of the actuator the parking lock according to Figure 1, and the moving parts of the parking lock actuator are in their unlocked position in which the parking lock is not activated;
    [0027] blocking
    Figure 4 shows a side parking view of the agreement with the actuator corresponding to the rupture and start path,
    It shows, as well as, the representation form of Figure 3, being that, the movable parts of the parking block actuator are in their blocking position in which the parking block is activated;
    [0028] Figure 5 is a discontinuous sectional view of the parking lock actuator according to Figure 1, which corresponds to the cut line of the VV in Figure 3, with respect to a first gear level of a planetary gear as a conversion module the number of
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    14/32 rotations of a parking lock actuator gear mechanism in the unlocked position;
    [0029] Figure 6 is a discontinuous sectional view of the parking lock actuator according to Figure 1 which corresponds to the cut path line VI-VI in Figure 4, with respect to the first gear level of the planetary gear in the locked position ;
    [0030] Figure 7 is a discontinuous sectional view of the parking lock actuator according to Figure 1 which corresponds to the path of cut VII-VII in Figure 3, which runs centrally through the retention system, for illustration , as the restraint system interacts with a locking disc of a locking mechanism attached by actuation to the gearing mechanism, which serves to maintain the actuation bar for emergency operation against the force of the spring element in its unlocked position , the locking disc of the retention system being on an impact surface of a contour of the locking disc, fixed in the unlocked position;
    [0031] Figure 8 is a discontinuous sectional view of the parking lock actuator according to Figure 1 corresponding to the cut path line VIII-VIII in Figure 4, with the locking disc of the retention system being released in the blocking position;
    [0032] Figure 9 is a discontinuous sectional view of the parking lock actuator according to Figure 1 which corresponds to the cut line IX-IX in Figure 3, with respect to the second gear level of the planetary gear in the unlocked position ;
    [0033] Figure 10 is a discontinuous sectional view of the parking lock actuator according to Figure 1, which corresponds to the cut path of X-X in Figure 4, with respect to the second gear level of the planetary gear in the locked position;
    [0034] Figure 11 is a discontinuous sectional view of the
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    15/32 parking lock actuator according to Figure 1 which corresponds to the cut line XI-XI in Figure
    3, which runs centrally through a crank arm of the rotatingly arranged gear mechanism by means of a bearing shown only schematically in the compartment, in which the actuating rod articulates eccentrically, to convert a rotation movement of the planetary gear for an axial movement of the actuation bar, and the crank arm is close to its neutral or inversion point, upper here, in the unlocked position;
    [0035] Figure 12 is a discontinuous sectional view of the parking lock actuator according to Figure 1 corresponding to the cut line XII-XII in Figure
    4, the crank arm being in its neutral or reversing position, here below, in the locked position;
    [0036] Figure 13 is a sectional view of the parking lock actuator according to Figure 1 which corresponds to the line of travel of section XIII-XIII in Figure 3, which runs centrally through the actuation bar eccentrically joined to the arm crank arm, with the crank arm remaining close to its neutral or reversal point, here below, while the actuation bar is in the removed unlocked position;
    [0037] Figure 14 is a discontinuous sectional view of the parking lock actuator according to Figure 1, which corresponds to the cut path of the XIV-XIV in Figure 4, with the crank arm remaining in its neutral or neutral position. inversion, upper here, while the actuation bar is in the locked position extended to the maximum;
    [0038] Figure 15 is a discontinuous side view above the parking lock actuator according to Figure 1 in the drawing plane, rotated around 90 ° clockwise, with respect to a flange formed in one piece in the compartment for fixing in a compartment of the
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    16/32 gear;
    [0039] Figure 16 is a discontinuous cross-sectional view of the parking lock actuator according to Figure 1, which corresponds to the cut line XVI-XVI in Figure 15, and the actuation bar is extended to the maximum in the locked position, particularly for the illustration of a sensor arrangement integrated in the compartment for recording the position of the actuation bar; and [0040] Figure 17 is an enlarged partial sectional view of the parking lock actuator according to Figure 1, which corresponds to detail XVII in Figure 8, to better illustrate an inclination position of the impact surface of the contour of the disc. lock in relation to the radial direction to the axis of rotation of the locking disc. DETAILED DESCRIPTION OF THE MODALITY EXAMPLE [0041] In the Figures, reference number 10 refers to an electric parking lock actuator for activating a parking lock 12 in an automobile. The parking lock 12 presents, according to Figure 1, in a known manner, a parking lock wheel 14 which is axially arranged against twisting on a gear axis not represented by an automobile gear and on the outer circumferential side, has a toothing 16. For positive retention of the car's powertrain, the parking lock 12 further comprises a locking latch 18, which is pivotally pivoted in a gear compartment not shown here around an axle of articulation 20 and has a locking tooth 22 which, in a rotation of the locking lock 18 around the rotating axis 20, can engage in a positive union with the teeth 16 of the parking locking wheel 14. Reference number 24 is A hole is specified in the locking latch 18, in which a replacement spring not shown here is supported against the gear housing, which pre-tensiones the
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    17/32 locking latch 18 of the locking wheel 14 moved away to an unlocked position.
    [0042] To rotate the locking latch 18 around the rotating axis 20, a drive element 26 is provided, which has, in the example shown, a conical (double) surface section 28 and, still to be described , can be axially displaced via the parking lock actuator 10 optionally, to a locking direction S or an unlocking direction E, as illustrated with arrows in Figures 1, 2, 11 to 14 and 16. In this case, the tapered surface 28 according to Figure 1 is known to rest on a tapered guide element 30, known to the gear housing, so that in an axial movement of the drive element 26 in the direction of locking S, the locking latch 18 in Figure 1 is pivotally raised against the force of the replacement spring not shown, around the pivot axis 20, in order to bring the locking tooth 22 in positive union with the dentition 16 of the wheel parking lock 14. In an axial movement of the drive element 26 in the direction of release E, however, the conical surface section 28 of the drive element 26 is removed from its position between the locking latch 18 and the tapered guide element 30, the which has the consequence that the locking latch 18 in Figure 1, due to the force of the replacement spring, is lowered in a rotating manner around the rotating axis 20, with the locking tooth 22 being able to be externally disengaged by the teeth 16 of the parking lock wheel 14.
    [0043] The actuator of the parking lock 10 comprises, according to Figures 1 to 4 in particular, a compartment 32 cast by injection preferably of a synthetic material, in which a gear mechanism referenced with the general reference number 34 is received in Figures 3, 4 and 16, which, by means of an electric motor 36 fixed by flange, externally, in compartment 32, for example, an economical combustion engine, can be activated
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    18/32 in a rotating manner and serves to convert a rotational movement into an axial movement of a drive bar 38 that acts in conjunction with the gear mechanism 34, which carries the drive element 26 for the parking lock 12. A drive bar 38, in normal operation of the parking lock actuator 10, can be moved by the gear mechanism 34 driven by an electric motor from a designed unlocking position, shown in Figure 13 in the locking direction S to a position of extended lock, shown in Figures 14 and 16 and vice versa, that is, in the direction of unlocking E. A spring element 40 that surrounds the actuation bar 38 here a compression spring - pre-tensioning the actuation bar 38, in this case, as an energy store in the direction of the locked position.
    [0044] In addition, as will be described below, a locking mechanism 42 (see Figures 3 to 8, 16 and 17) is provided, which serves to hold the actuation bar 38 in its unlocked position against the force of the spring element 40 and can be optionally released for emergency operation by means of a retention system 44, such that the actuation bar 38, due to the force of the spring element, 40 moves without motor support electrical, to the locked position.
    [0045] It is essential that the locking mechanism 42 has a locking disc 46 attached to the gearing mechanism 34 by actuation (see, in particular, again Figures 3 to 8, 16 and 17), which, in normal operation, can be driven by the electric motor in a first direction of rotation Dl and, as illustrated in detail, in the sequence, in the same way, it has a contour 48 that interacts with the retention system 44, which, in the first direction of rotation Dl, allows a rotation of the locking disc 46 independent of the retention system 44 and, in a second direction of rotation D2 contrary, forms an impact surface 50, which can be brought against the retention system 44 (see Figure 7),
    Petition 870180002896, of 12/01/2018, p. 72/105
    19/32 when the locking disc 46 takes on a rotating position, in which the actuation bar 38 is in its unlocked position. In an emergency operation, that is, when the electric motor 36 fails, the impact surface 50 of the locking disc 46 can be released by the retention system 44, so that the locking disc 46 rotates in the second direction. rotation D2, while the spring-loaded actuating rod 38 moves in the locking direction S to its locking position.
    [0046] As it is possible to recognize according to Figures 1 and 2 already from the outside, the compartment 32 of the parking block actuator 10 has a base of the compartment 52 essentially rectangular seen in a top view, from which it extends in shape A section of the gear compartment 54 is essentially cylindrical. At the end of the gear compartment section 54 away from the base of the compartment 52, an engine compartment 56 of the electric motor 36 that partially consists of synthetic material is flanged in the example shown shown separate from the compartment 32. On the far side of the compartment of the engine 56, the compartment 32 is closed by means of an external cover 58 of synthetic material, which is laser welded to the base of the compartment 52, sealed against liquids.
    [0047] In the compartment 32, between the base of the compartment 52 and the section of the gear compartment 54 according to Figures 3, 4 and 16, an intermediate cover 60 of synthetic material is inserted, essentially in the form of a container, which subdivides the internal space of compartment 32, similarly, sealed against liquids, in two areas, for example, by means of laser welding. While - as the name implies - the gear mechanism 34 properly lubricated and the lock mechanism 42 are received in the area of the gear compartment section 54, the base of the compartment 52 serves for the dry reception of a parking lock actuator 10 integrated into the module
    Petition 870180002896, of 12/01/2018, p. 73/105
    20/32 of the electronic medium 62. The electronic medium module 62 has at least one electronic medium necessary for the control of the electric motor 36 and an interface component 64 (see Figures 3 and 4) for the electrical contact of the lock actuator parking space 10.
    [0048] In addition, in the example of the modality shown in particular according to Figure 16, a sensor arrangement 66 for recording the position of the actuation bar 38 is also integrated in the compartment 32. The sensor arrangement 66 comprises an sensor 68 fixed in place (for example, a Hall sensor), provided in the electronics module 62 and a signal element 70 (magnet). The latter is arranged movably in the area of the gear mechanism 34 together with the actuation bar 38 and can be detected by means of the sensor element 68 by the intermediate cover 60, to register at least the unlock position and the lock position of the actuation bar 38.
    [0049] According to Figures 1 and 2, a connection area 72 for the retention system 44 is provided laterally in the gear compartment section 54 of the compartment 32, in which, in the example shown, a lifting magnet, therefore, an electromagnetic actuator. It is also possible to recognize in Figures 1 and 2 that the compartment 32 is arranged in the area of the base of the compartment 52 with electronic connections 74, 76 that extend parallel to the section of the gear compartment 54 starting from the base of the compartment 52 for the electrical contact of the parking block actuator 10 by electronic module 62. While, in Figure 2 the left electronic connection 74 serves for the independent electrical control of the retention system 44, the right electrical connection 76 in Figure 2 serves for the electrical contact of the motor 36 and sensor arrangement 66. In Figure 2, it is possible to see a connection section 78 that extends from the base of the compartment 52 to the engine compartment 56 and is
    Petition 870180002896, of 12/01/2018, p. 74/105
    21/32 connected, via the electronic medium module 62, to the electric motor 36.
    [0050] Finally, according to Figures 1, 2 and 15, it is possible to recognize externally, that the compartment 32 is moved around 90 ° in relation to the connection area 72 for the retention system 4 4 around the medium shaft of compartment 32, provided with a flange 80 for attachment to the gear compartment (not shown). The flange 80 has a central opening 82, through which the actuation bar 38 which carries the actuation element 26 and the spring element 40 extends from the inside out.
    [0051] With respect to the inner part of the parking block actuator 10, reference is first made to Figures 3, 4 and 16. Therefore, the section of the gear compartment 54 is provided in its connection wall, upper in this Figure, with a central opening 84, with a fixing flange 86 of the engine compartment 56 centered and fixed in a manner not shown here. In a cylindrical cavity of the fixing flange 86, a radial shaft seal ring 88 is received, by which an outlet shaft 90 of the electric motor 36 extends inwardly in the gear compartment section 54 in order to drive the gear mechanism 34 rotates. The gear mechanism 34 comprises, in the example of the modality represented, in general, two modules, namely, a first module, which serves to convert the number of revolutions of the drive generated by means of the motor electric 36 with lower torque for a lower number of output revolutions with higher torque and a second module, whereby the rotation movement of the first module is transferred to the axial movement of the actuation bar 38.
    [0052] By the first module of the gear mechanism 34 it is, in the present example of a modality, a planetary gear 92, which is formed in two levels, with a first gear level 94 and a second gear level 96. It is common both levels of
    Petition 870180002896, of 12/01/2018, p. 75/105
    22/32 gear 94, 96 of planetary gear 92 coaxially arranged, a wheel with inner gear 98 fixed in the compartment, which is cast by injection in one piece with the gear compartment section 54 of the compartment 32, in synthetic material, and features 100 straight indentation. A first straight toothed sun gear 102 of the first gear level 94 is attached to the end of the output shaft 90 which projects into the gear compartment section 54 and, according to Figures 5 and 6, combs with the first three planet wheels 104 straight teeth regularly spaced at an angle around the axis of rotation R. The first planetary wheels 104, likewise, cast by injection of synthetic material, shown not sectioned in Figures 3, 4 and 16, according to Figures 5 and 6 are arranged in a rotating manner, by means of cylindrical bars 106, around a first carrier of planetary 108 and comb, in turn, together with the inner gear wheel 98.
    [0053] A second straight toothed solar gear 110 of the second level of gear 96 is cast by synthetic material injection on the side of the first planetary carrier 108 away from the first solar gear 102 in one piece with the first planetary carrier 108 and , according to Figures 7 to 10, combs with three second straight toothed planetary wheels 112 regularly spaced at an angle around the rotation axis R. The second planetary wheels 112, likewise, cast by injection of synthetic material, shown not sectioned in Figures 3, 4 and 16, according to Figures 9 and 10, are swiveled, by means of cylindrical bars 114, around a second metallic carrier of planetary 116 and comb, in turn, together with the inner gear wheel 98.
    [0054] The second planetary 116 carrier is arranged, in its outer circumference, by means of a bearing 118 shown only schematically in the Figures in
    Petition 870180002896, of 12/01/2018, p. 76/105
    23/32 in the form of a bearing housing in the gear compartment section 54, the intermediate cover maintaining an outer ring of the bearing 118 in a recess 120 in the housing
    32. An inner ring of bearing 118 is attached, on both sides, to a second carrier of planetary 116 at various points distributed along the circumference, which is extracted in an exemplary manner in Figures 3, 9,
    10,
    13, 14 and 16 with the reference number 122, so the second planetary carrier 116 is kept in the section of the gear compartment 54 by the bearing
    118 in axial direction.
    [0055]
    To a certain extent, it is apparent to the skilled person that a rotation of the output shaft 90 of the electric motor 36 at the first level of the gear 94 is transmitted by the first solar gear 102, main planet wheels 104 and cylindrical bar 106 placed under the planetary carrier 108, since the inner gear wheel is fixed in the compartment with its toothing 100. The first carrier of planetary 108, in turn, rotates, joined in one piece, the second solar gear 110 of the second gear level 96 , the rotation of which is transmitted by the second planetary wheels 112, which also pass to the inner gear wheels 98 and the cylindrical bar 114 still placed under the planetary carrier 116. Since planetary gear 92 has two levels, the output shaft 90 of electric motor 36 and the second planetary carrier 116 rotate in the same direction around the axis of rotation R. The transmission ratio the total can be, in this case, in the range between about 12: 1 and 30: 1, for example, 24: 1, that is, 24 turns of the output shaft 90 of the electric motor 36 cause, in this example, about the two-level planetary gear 92, a (numeral) rotation of the second carrier of planetary 116. Since the total transmission of multi-level gears results from the multiplication of transmissions from the individual gear levels, for each gear level 94, 96, it's possible
    Petition 870180002896, of 12/01/2018, p. 77/105
    24/32 select a reasonable transmission range, between, for example 3: 1 and 10: 1, so that the solar gear and planetary wheels are not very small and can be produced from high performance synthetic materials.
    [0056] By the second previously indicated module of the gear mechanism 34, by means of which the rotation movement of the planetary gear 92 is transferred to the axial movement of the actuation bar 38, this is an example of a modality drive the eccentric with a crank arm 124, which is eccentricly hinged to the drive bar 38. Here, the second carrier of planetary 116 of planetary gear 92 forms, at the same time, crank arm 124. As best seen in Figures 13, 14 and 16, a cylindrical bar 126 eccentric to the axis of rotation R is placed on the second carrier of planetary 116, for example, by means of a compression connection, so that the cylindrical bar 126 projects from the side away from planetary gear 92 of the second carrier of planetary 116.
    [0057] On the cylindrical bar 126 are connected, seen, for example, in Figure 16 from top to bottom, a thrust washer 128, a spherical part of the bearing 130 and a support 132 for the signal element 7 0 (magnet) of the sensor arrangement 66 - all parts are made of synthetic material - and secured by means of a safety ring 134 at the end of the cylindrical bar 126, Figure 16 below. The support 132 is secured in a spherical part of the bearing 130 which, particularly for assembly purposes, allows a minimum articulation of the drive bar 38 from the drawing plane in Figures 13 and 14 - in positive union, against a twist in relation to the spherical part of the bearing 130, as it is possible to recognize in Figure 16, while the spherical part of the bearing 130 according to Figures 13 and 14, in turn, are secured in the eye of the bearing 136 of the drive bar 38 in union positive against a twist in relation to the bearing eye 136. The bearing eye 136 fitted to the part
    Petition 870180002896, of 12/01/2018, p. 78/105
    The spherical 25/32 of the bearing 130 likewise consists of a synthetic material and is sprayed onto a metallic core of bar 138 of the actuation bar 38. Thus, the support 132 for the signal element 70 follows, always aligned with the drive bar 38, an oscillating back and forth movement of the drive bar 38 around the cylindrical bar 126, which in turn, in a rotation of the crank arm 12 4, circles around the axis of rotation R As a result, it is possible to detect the respective position of the actuation bar 38 due to the relative movement caused between the sensor element 68 and the signal element 70, which is joined in the area of the eccentric articulation of the actuation bar 38, in the control arm. crank 124, to the actuation bar 38, by means of the sensor arrangement 66 through the intermediate cover 60.
    [0058] Further details for the drive bar 38 and its previous tension must be extracted from Figures 1, 2, 13, 14 and 16. Therefore, the core of the bar 138 of the drive bar 38 is provided essentially central with a junction 14 0 that fulfills a dual support function. On the one hand, the junction 140 forms a support for a metal spring plate 142, on which the spring element 40 is supported on the column side, while the spring element 40 is supported on the compartment side by a centering ring 144 of synthetic material received at the opening 82 of the flange 80. The spring element 40 thus pre-tensiones the actuation bar 38 in the direction of locking S. On the other hand, the joint 140 forms a support for a successor spring 14 6 in the form of a compression spring, the known function of which has already been described in the introduction to this document. The successor spring 146 is inserted on the side of the joint 140 away from the spring element 40 in the cores of the bar 138 and pre-tensiones the driving element 26 movably guided, axially in the core of the bar 138 in the direction of locking S, against a stop 148 formed at the free end of the core of the bar 138.
    [0059] For other individual units of the mechanism
    Petition 870180002896, of 12/01/2018, p. 79/105
    26/32 lock 42, Figures 3, 4 and 16 are indicated first. Therefore, the locking disc 46 of the locking mechanism 42 is arranged axially between the first gear level 94 and the second gear level 96, said of more precisely, between the planetary carrier 108 of the first gear level 94 and the second planetary wheels 112 of the second gear level 96. Here, the locking disc 46 is coupled against torsion with a second carrier of the planetary 116 of the second level of gear 96 and, namely, by the cylindrical bars 114 that support the second planetary wheels 112, which, in Figures 3, 4 and 16, project upwards by the second planetary wheels 112 and in that place they engage in the respective holes 150 in the disk locking 46 - for this, see particularly Figures 7 and 8. In these Figures, it is also possible to recognize that the locking disc 46 is annular with a central opening 152 for the passage of the second solar gear 110 second gear level 96.
    [0060] According to Figures 7, 8 and 17, the contour 48 of the locking mechanism 42 that interacts with the retention system 44 is formed on the outer circumference of the locking disk 46. As shown particularly in the enlargement according to Figure 17, the impact surface 50 of the contour 48, here in relation to the rotation axis R of the locking disc 46, has an inner radial edge 154 and an outer radial edge 156. Viewed from the circumference of the locking disc 46, the contour 48 runs between the inner radial edge 154 and the outer radial edge 156 at least partially in the form of an Archimedes' spiral.
    [0061] As already indicated above, by retaining system 4 4 that interacts with the contour 4 8 of the locking disc 46, it deals with a lifting magnet. This has a lifting magnet compartment 158, which, according to Figures 2 to 6, 11 and 12, is fixed by means of fixing screws 160 and properly sealed in the connection area 72 of the gear compartment section 54. In the
    Petition 870180002896, of 12/01/2018, p. 80/105
    27/32 lifting magnet 158, in particular according to Figures 3, 4, 7 and 8, in known manner, an immersion core 164 axially movable is received by a coil 162 fixed in the compartment. A cylindrical bar 166 is brought into the immersion core 164, which forms a contact end 168 opposite the contour 48 of the locking disc 46, which protrudes into it, through an opening assigned 170 in the gear compartment section 54, the in order to have contact with the contour 48. In addition, a pre-tension spring 172 is provided that pre-tension the immersion core 164 in the direction of the contour 48. Consequently, the contact end 168 is in a de-energized state of the coil 162 in contour 48 such that it can engage with the impact surface 50 of contour 48, while contact end 168, in an energized state of coil 162, is drawn back against the force of the pre-tension spring 172 contour 48 in order to release its impact surface 50. This axial movement of the immersion core 164 is illustrated in Figures 3, 4 and 7 to 10 with the double arrow A.
    [0062] The angular positions of the impact surface 50 of the contour 4 8 provided about the axis of rotation R, on the one hand, and the cylindrical bar 126 in relation to the eccentric hinge of the actuation bar 38 on the
    hand crank 124, for another side, are coordinated in such a way an the other (to see Figures 7 and 13) , that when the edge in contact 168 of the system in retention 44 is found at surface of impact 50 of contour 48, as shown at
    Figure 7, the cylindrical bar 126 is located on the crank arm 124 close to its lower inversion point, in the
    Figure 13 and, namely, seen in the first direction of rotation
    Dl, before the inversion point. As a result, the actuating bar 38 allows, due to the force of the spring element 40 previously tensioned by the cylindrical bar 126 on the crank arm 124, to apply torque in the second direction of rotation
    D2. From this position, if the impact surface 50 of the contour 48, in the emergency operation of the actuator of the
    Petition 870180002896, of 12/01/2018, p. 81/105
    28/32 parking block 10, is released by the power supply of the retention system 44 from its contact end 168, the crank arm 124 and, thus, the locking disc 46 under the stored force of the locking element spring 40 rotates to the second direction of rotation D2, and the actuation bar 38 moves from its unlocked position, according to Figure 13, in the locking direction S in its locked position, according to Figure 14. So that, in this movement, the electric motor 36 does not need to be rotated together, a corresponding free wheel (not shown) can be provided on the output shaft 90 of the electric motor 36. In normal operation of the parking lock actuator 10, on the contrary, the rotation of the electric motor causes, by the gear mechanism 34, a rotation of the crank arm 124 and thus the locking disc 46 in the first direction of rotation D1. The contour 48 that rises smoothly from the inner radial edge 154 of the impact surface 50, seen in the circumferential direction of the locking disc 46 m in relation to the outer radial edge 156 of the impact surface 50 moves the left core here, to the left. immersion 164 of the retention system 44, by its contact end 168 against the force of the pre-tension spring 172 in Figures 7 and 8. When passing the impact surface 50, the contact end 168 of the immersion core 164 under the force of the pre-tensioned spring 172 recedes again at the contour 48. The impact surface 50 cannot therefore unfold in the first direction of rotation D1, any effect that retains the locking disc 46, but probably in the direction of rotation D2.
    [0063] It can be seen that in the normal operation of the actuator of the parking lock 10, the actuation bar 38, by means of the electric motor 36 with support of the force of the position of the locking element.
    spring 40
    40, it can be the operation is pre-tensioned and the spring
    To pass from to your emergency, gear mechanism 34 blocked by means of lock mechanism 42
    Petition 870180002896, of 12/01/2018, p. 82/105
    29/32 and the assigned restraint 44. In the second direction of rotation D2, the impact surface 50 prevents rotation of the gear mechanism 34 under the force of the spring element 40. In the first direction of rotation D1, the gear mechanism 34 cannot be rotated automatically, since the crank arm 124, seen in the first direction of rotation D1, is located before its point of inversion, whereby the spring element 40 acts in the second direction of rotation D2 and presses the impact surface 50 against the retention system 44 From now on, only a power supply from the retention system 44 is required to release the impact surface 50 and thereby allow the gear mechanism 34 to rotate to the second direction of rotation D2, in which the spring element 40 moves the actuation bar 38 to its locked position. For the return movement of the drive bar 38 to its locked position, the electric motor 36 is required, which drives the gear mechanism 34 in the first direction of rotation D1, to remove the drive bar 38 and thereby also tension the spring element 40 again.
    [0064] In Figure 17 it is shown, finally, that the impact surface 50 of the contour 48 in the locking disc 46 in relation to a radial plane that runs along the rotation axis R of the locking disc 46, runs slightly inclined, so that the inner radial edge 154 of the impact surface 50 seen in the direction of the first direction of rotation D1 of the locking disc 46, lies before the outer radial edge 156 of the impact surface 50. The corresponding support angle of the surface of impact 50 can be, for example, between 3 o and 4 o . This inclination of the impact surface 50 simplifies the removal of the contact end 168 from the immersion core 164 of the contour 48, in case the retention system 44 is energized, in order to release the impact surface 50.
    [0065] An electric parking lock actuator has a gear mechanism received in a
    Petition 870180002896, of 12/01/2018, p. 83/105
    30/32 compartment, which is operable by means of the electric motor and serves to convert a rotational movement to an axial movement of a drive bar that carries a drive element for the parking lock that acts in conjunction with the gear mechanism . The latter can be moved, in normal operation, by the gear mechanism by means of an electric motor from an unlocked position to a locked position and vice versa and is pre-tensioned by means of a spring element in the direction the locked position. A locking mechanism serves to hold the actuation bar in its unlocked position against the force of the spring element that acts as an energy store and, for this purpose, in a very compact design, a locking disc attached by actuation to the locking mechanism gear with a contour that forms, in just one direction of rotation of the locking disc, an impact surface for a retention system. For an emergency operation, the impact surface can be released by the retention system, so that the actuation bar, depending on the force of the spring element, moves without support of the electric motor, to the locked position.
    REFERENCE NUMBERS parking lock actuator parking lock wheel parking lock toothing locking lock articulated shaft locking tooth orifice drive element tapered surface section tapered guide element compartment gear mechanism electric motor
    Petition 870180002896, of 12/01/2018, p. 84/105
    31/32 actuation bar spring element locking mechanism retention system locking disc contour impact surface of the compartment base section of the gear compartment engine compartment outer cover intermediate cover electronics module interface component sensor arrangement sensor element signal element connection area electrical connection electrical connection connection section flange central opening central flange clamping ring radial shaft sealing ring output shaft planetary gear first gear level second gear level wheel with inner gear straight tooth first solar gear first planetary wheels cylindrical pins first carrier of the planetary
    Petition 870180002896, of 12/01/2018, p. 85/105
    32/32
    110 second solar gear
    112 second planet wheels
    114 cylindrical pins
    116 second planetary carrier
    118 bearing
    120 recess
    122 settlement
    124 crank arm
    126 cylindrical pin
    128 thrust washer
    130 spherical part of the bearing
    132 support
    134 security ring
    136 eye of the mancai
    138 bar core
    140 strip
    142 spring plate
    144 centering ring
    146 successor spring
    148 backrest
    150 hole
    152 central opening
    154 inner radial edge
    156 outer radial edge
    158 lifting magnet compartment
    160 fixing screw
    162 coil
    164 immersion core
    166 cylindrical pin
    168 contact end
    170 aperture
    172 spring tension α inclination angle
    Axial movement
    Petition 870180002896, of 12/01/2018, p. 86/105
    33/32
    Dl first direction of rotation D2 second direction of rotation
    And unlock direction
    R axis of rotation
    S blocking direction
    Petition 870180002896, of 12/01/2018, p. 87/105
    1/5
    权利要求:
    Claims (15)
    [1]
    1. Electric parking lock actuator (10) for activating a parking lock (12) in an automobile, with a gear mechanism (34) incorporated into a compartment (32), which is swivelable by means of of an electric motor (36) that serves to convert a rotational movement to an axial movement of a drive bar (38) that carries a drive element (26) for the parking lock (12) that acts in conjunction with the gear mechanism (34), which can be moved, in normal operation, by the gear mechanism (34) driven by an electric motor from the unlocked position to a locked position and vice versa and is pre-tensioned by means of an element spring (40) in the direction of the locking position, and a locking mechanism (42) is provided, which serves to hold the actuation bar (38) in its unlocked position against the force of the spring element (40 ) and can be released for an emergency operation of the selected mode by means of a restraint system (44), such that the actuation bar (38) moves according to the force of the spring element (40) without the electric motor support to the position locking mechanism, characterized by the fact that the locking mechanism (42) has, according to the invention, a locking disk (46) which is connected to the gear mechanism (34) by actuation, which can be activated, in operation normal by electric motor in a first direction of rotation (Dl) and has a contour (48) that interacts with the retention system (44), which allows, in the first direction of rotation (Dl), a rotation of the locking disc ( 46) which depends on the retention system (44) and forms, in a second direction of rotation opposite (D2), an impact surface (50) that can be moved against the retention system (44) when the locking disc (46) assumes a rotation position, in which the actuation bar (38) is in its unlocked position, and in
    Petition 870180002896, of 12/01/2018, p. 88/105
    [2]
    2/5 emergency operation, the impact surface (50) can be released by the retention system (44) in such a way that the locking disc (46) rotates to the second rotation position (D2), while the drive (38) moves to the locked position.
    2. Parking lock actuator (10), according to claim 1, characterized by the fact that the gear mechanism (34) comprises a planetary gear (92) which converts, number of revolutions of the planetary gear drive (92 ) generated by the electric motor (36) for a lower number of planetary gear output revolutions (92).
    [3]
    3. Parking block actuator (10) according to claim 2, characterized by the fact that the planetary gear (92) is formed on two levels, with a first gear level (94) and a second gear level (96).
    [4]
    4. Parking lock actuator (10) according to claim 3, characterized in that the locking disc (46) is arranged between the first gear level (94) and the second gear level (96) .
    [5]
    5. Parking block actuator (10) according to one of claims 2 to 4, characterized by the fact that the planetary gear (92) has a wheel with an internal gear (98) which is cast by injection of synthetic material in one piece with the compartment (32).
    [6]
    6. Parking block actuator (10) according to one of claims 2 to 5, characterized by the fact that the planetary gear (92) has planetary carriers (104, 112) of synthetic material that are provided with straight indentations .
    [7]
    7. Parking lock actuator (10) according to one of the preceding claims, characterized by the fact that the gear mechanism has (34) a crank arm (124) in which an actuation bar is eccentricly articulated (38), to transfer the
    Petition 870180002896, of 12/01/2018, p. 89/105
    3/5 rotation movement for axial movement.
    [8]
    8. Parking lock actuator (10) according to at least claims 2 and 7, characterized in that a planetary carrier (116) of the planetary gear (92) forms the crank arm (12 4).
    [9]
    9. Parking lock actuator (10) according to one of the preceding claims, characterized by the fact that the contour (48) is formed on the outer circumference of the locking disc (46) and the impact surface (50) of the contour (48) in relation to an axis of rotation (R) of the locking disc (46) has an inner radial edge (154) and an outer radial edge (156), with the contour (48) seen from the circumference of the locking disc (46), runs between the inner radial edge (154) and the outer radial edge (156) at least partially in the form of an Archimedes' spiral.
    [10]
    10. Parking block actuator (10) according to claim 9, characterized in that the impact surface (50) of the contour (48) in relation to a radial plane that runs along the axis of rotation (R) of the locking disc (46) runs slightly tilted, so that the inner radial edge (154) of the impact surface (50), seen in the direction of the first direction of rotation (Dl) of the locking disc (46), is located before the outer radial edge (156) of the impact surface (50).
    [11]
    11. Parking block actuator (10) according to one of the preceding claims, characterized by the fact that the retaining system (44) is a lifting magnet with an immersion core (164) that moves axially, surrounded by a coil fixed to the housing (162), which has a contact end (168) opposite the contour (48) of the locking disc (46) and is pre-tensioned
    through in a previous tension spring (172) towards of contour (48) , and the far end in contact (168) if finds, in a state not energized gives coil (162), at the contour (48) such that the even allows a hitch with The
    Petition 870180002896, of 12/01/2018, p. 90/105 impact surface (50) of the contour (48) and, in an energized state of the coil (162), it is drawn back against the force of the previous tension spring (172) of the contour (48), in order to release its impact surface (50).
    [12]
    12. Parking lock actuator (10) according to one of the preceding claims, characterized in that the compartment (32) is provided in one piece with a flange (80) for fixing it in a gear compartment, which has a central opening (82) through which the actuation bar (38) which carries the actuation element (26) and the spring elements (40) extends from the inside out.
    [13]
    13. Parking block actuator (10) according to one of the preceding claims, characterized by the fact that in the compartment (32) an electronic medium module (62) is integrated, comprising at least one electronic medium necessary for the control of the electric motor (36) and an interface component (64) for the electrical contact of the parking lock actuator (10), the gear mechanism (34) in the compartment (32) being separated by an intermediate cover ( 60) of the electronic medium module (62), which is sealed, in this part, against the environment by means of an external cover fixed in the compartment (32).
    [14]
    Parking lock actuator (10) according to claim 13, characterized in that the intermediate cover (60) also maintains a bearing (118) in the compartment (32), by means of which a part of the locking mechanism gear (34) is pivoted against the housing.
    [15]
    15. Parking block actuator (10) according to at least claims 7 and 13, characterized in that a sensor arrangement (66) is also integrated in the compartment (32) for recording the position of the actuation bar (38), with a sensor element (68) provided in the electronic module (62) and a signal element (70), which, in the eccentric articulation area of the
    Petition 870180002896, of 12/01/2018, p. 91/105
    5/5 the drive (38) on the crank arm (124) is attached to the drive bar (38) or the crank arm (124) and, by means of the sensor element (68) can be detected by the intermediate cover (60 ) to register at least the unlocking position and the locking position of the actuation bar (38).
    Petition 870180002896, of 12/01/2018, p. 92/105
    1/9
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    WO2012052533A1|2012-04-26|Control device for a vehicle door locking system
    同族专利:
    公开号 | 公开日
    DE102016014523A1|2018-06-07|
    EP3333463A1|2018-06-13|
    CN108167434B|2021-03-16|
    JP2018095248A|2018-06-21|
    KR20180065936A|2018-06-18|
    MX2017015895A|2018-11-09|
    US10407041B2|2019-09-10|
    US20180154881A1|2018-06-07|
    EP3333463B1|2020-08-19|
    CN108167434A|2018-06-15|
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    法律状态:
    2018-11-06| B03A| Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]|
    2021-03-16| B11A| Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing|
    2021-06-01| B11Y| Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired|
    优先权:
    申请号 | 申请日 | 专利标题
    DE102016014523.4A|DE102016014523A1|2016-12-07|2016-12-07|Electric parking brake actuator for actuating a parking brake in a motor vehicle|
    DE102016014523.4|2016-12-07|
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