• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a fifth wheel (1) for coupling a tractor unit (2) with a semi-trailer (3), with a fifth wheel plate (4) for mounting on the tractor (2) and an engagement element (5) for mounting on the semitrailer (3) proposed that an angle measuring device (6) comprising a Drehwinkelaufnehmer (7) for measuring the rotational angle between the engaging member (5) and the fifth wheel plate (4) is provided.
    公开号:AT514448A1
    申请号:T491/2013
    申请日:2013-06-18
    公开日:2015-01-15
    发明作者:Josef Jun Scharmüller；Christine Scharmüller
    申请人:Scharmüller Josef Ing；
    IPC主号:
    专利说明:

    The invention relates to a fifth wheel according to the preamble of claim 1.
    Fifth wheel couplings - if mounted on tractor or semitrailer - are part of a semitrailer. Tractors are transport vehicles, which are flexible and inexpensive to use. The semitrailer comprises the tractor and the coupled semitrailer. The semi-trailer is a trailer without front axle, but usually with several rigid rear axles. The fifth wheel is - seen in the direction of travel of the team - arranged in front of the rearmost axle of the tractor. In this way, the tractor can carry a part of the mass of the trailer.
    A disadvantage of such semi-trailers is that it comes to heavy wear of the tires of the semitrailer when cornering.
    The object of the invention is therefore to provide a fifth wheel of the type mentioned, with which the mentioned disadvantages can be avoided, with which a wear of the tires of the semitrailer can be reduced.
    This is achieved by the features of claim 1 according to the invention.
    This results in the advantage that the angle of rotation of the tractor to the semi-trailer can be determined. The measured angle of rotation can further be used for a forced steering of the semitrailer, whereby the wear of the tires of the semitrailer can be kept low. Furthermore, the maneuverability, and in particular the off-road capability, of the tractor-trailer can be improved. Due to the increased off-road capability, the field of application of the tractor can be significantly increased. For example, the semitrailer may be designed for off-highway use. This may be provided in particular that the tractor is intended for use in agriculture or mining. Furthermore, this can be increased to be supported load, which is why a tractor with such a fifth wheel is particularly suitable for heavy load transport.
    The invention further relates to a tractor-trailer according to the preamble of claim 13.
    The subclaims relate to further advantageous embodiments of the invention.
    It is hereby expressly referred to the wording of the claims, whereby the claims at this point are incorporated by reference into the description and are considered to be reproduced verbatim.
    The invention will be described in more detail with reference to the accompanying drawings, in which only preferred embodiments are shown by way of example. Showing:
    Fig. 1 shows a first preferred embodiment of a fifth wheel in side view;
    Figure 2 shows a part of the first preferred embodiment of a fifth wheel in axonometric view obliquely from below.
    Fig. 3 and 4, the first preferred embodiment of a fifth wheel in axonometric view obliquely from above;
    5 shows a second preferred embodiment of a fifth wheel in side view;
    6 and 7, the second preferred embodiment of a fifth wheel in axonometric view obliquely from above;
    Fig. 8 shows the second preferred embodiment of a fifth wheel as a partial section in side view;
    Fig. 9 shows the second preferred embodiment of a fifth wheel as a section in side view;
    10 and 11, the second preferred embodiment of a fifth wheel as a partial section in axonometric view obliquely from above;
    1 to 11 show preferred embodiments of a fifth wheel 1 for coupling a tractor unit 2 with a semi-trailer 3, with a
    Saddle plate 4 for mounting on the tractor unit 2 and an engagement member 5 for mounting on the semitrailer 3. The tractor unit 2 may also be referred to as a semitrailer vehicle. The semi-trailer 3 is also known under the names semitrailer, semi-trailer or trailer. The fifth wheel 1 is used for coupling the semitrailer 3 to the tractor unit 2, wherein the engagement element 5 engages in the fifth wheel plate 4 and is rotatably supported by this. Tractor 2 and semi-trailer 3 form a tractor train form. The semitrailer can also be referred to as a team.
    The fifth wheel 4 is provided for mounting on the semitrailer tractor 2 and can be screwed in particular to the tractor unit 2.
    The engagement element 5 is mounted for mounting on the semitrailer 3 and can be screwed in particular to the semi-trailer 3.
    Saddle plate 4 and / or engagement element 5 may comprise steel or be formed substantially of steel.
    In Figs. 1 to 11 of the tractor unit 2 and the semi-trailer 3 only that part is shown, with which the fifth wheel plate 4 or the engagement member 5 is connected.
    It is provided that an angle measuring device 6 comprising a Drehwinkelaufnehmer 7 is provided for measuring the angle of rotation between the engagement member 5 and the fifth wheel plate 4. Here, the angle of rotation between the engagement member 5 and the fifth wheel plate 4 corresponds to the angle between the longitudinal direction of the tractor unit 2 and the longitudinal direction of the semitrailer 3. The rotation angle is in the straight ahead of the tractor 0 ° and differs in cornering from 0 °. By measuring the angle of rotation steerable axles of the semitrailer 3 can be forcibly steered, with the forced steering the cornering is facilitated and the wear of the tires can be kept low.
    In particular, a semitrailer comprising a tractor unit 2 and a semitrailer 3 may be provided, wherein the tractor unit 2 and the semitrailer 3 are coupled together by means of the advantageously designed fifth wheel 1. The semitrailer may be intended for use in truck traffic. Furthermore, it can be provided that the tractor is intended for off-road, for example, for agriculture or mining. Furthermore, it can be provided in particular that the semitrailer is designed as a heavy-duty transporter. Such heavy-duty transporters have a large number of axles.
    Particularly preferably it can be provided that the semi-trailer 3 has a forced steering, and that the steering angle of the forced steering is predetermined by the angle measuring device 6. Here, the semitrailer 3 has at least one steerable axle, which is guided by means of the forced steering. The angle measuring device 6 may in particular be part of the forced steering.
    Furthermore, a method for forced steering of a semitrailer may be provided, wherein a rotation angle between the tractor unit 2 and the semitrailer 3 is determined by the angle measuring device 6, and based on the measured angle of rotation at least one forcibly steered axle of the semitrailer 3 is directed.
    Particularly preferably, it can be provided that the engagement element 5 has a coupling ball 17. In this case, the fifth wheel plate 4 can in particular have a ball socket 20 for receiving the coupling ball 17. The ball socket 20 may be formed substantially equal in shape to the coupling ball 17, whereby the coupling ball 17 can be reliably absorbed by the ball socket 20 and the coupling ball 17 can be reliably rotated in the ball socket 20 in all directions, bringing into the ball socket 20 engaging engagement element 5 can be rotated and tilted. The advantage here is that the rotation of the coupling ball 17 takes place about a defined point, namely the center of the coupling ball 17, whereby a defined kinematics is given. The advantage here is that even with large roll or tilt angles reliably forces from the tractor unit 2 to the semitrailer 3 - and vice versa - can be transmitted.
    In an advantageous development it can be provided that adjacent to the
    Ball socket 20 is a sliding guide 21 for guiding the coupling ball 17 is arranged to the ball socket 20. In this way, the feeding of the coupling ball 17 into the ball socket 20 can be simplified. For coupling, the tractor unit 2 can be pushed backwards in the direction of the standing semitrailer 3. In this case, the coupling ball 17 can be easily inserted into the edge wide and narrow tapered slide 21. By means of the sliding guide 21 can - in the further backward sliding of the tractor unit 2 -the coupling ball 17 on - are pushed substantially in the direction of the ball socket 20 - essentially automatically.
    Furthermore, it can be provided that the ball socket 20 has a holding-down device 22, wherein the holding-down device 22 holds the coupling ball 17 in the ball socket 20.
    In Fig. 9 is a section through the ball socket 20 of the second preferred embodiment is shown.
    In particular, it may be provided that on the coupling ball 17, a neck 18 is formed, and that a connecting line between a center of the coupling ball 17 and the neck 18 forms an angle between 3 ° and 10 ° to a horizontal. By this kinked connection line, a particularly good power transmission can be achieved. Furthermore, this can be achieved a large tilt angle.
    Alternatively it can be provided that the engagement element 5 has a kingpin.
    Particularly preferably, it can be provided that the angle measuring device 6 comprises a ring element 8, that the ring element 8, the engagement member 5 at least partially, in particular completely encloses and is rotatably supported relative to the rotation angle relative to the engagement member 5, and that the ring member 8 fixed in position with respect to the rotation angle is held to the fifth wheel 4. The ring element 8 may in particular be the outer ring of a plain bearing or a ball bearing, whereby the ring element 8 can be turned particularly easily. Since the ring element 8 with respect to the rotational angle fixed to the saddle plate 4 can be easily determined by the relative angle between the ring member 8 and the engagement member 5 of the rotation angle. Here, the measurement of the rotation angle can be purely mechanical. By the ring member 8, the fifth wheel 1 can be rotated by 360 °, whereby the Drehwinkelaufnehmer 7 does not restrict the freedom of movement of the fifth wheel 1.
    In this case, provision may in particular be made for the ring element 8 to surround a neck 18 of the engagement element 5, a center line of the neck essentially leading through the center point of the ring element 8. As a result, a particularly simple and slightly distorted kinematics for determining the angle of rotation can be achieved, since the relative angle between the ring element 8 and the engagement element 5 essentially corresponds to the angle of rotation between the semitrailer tractor 2 and the semitrailer 3.
    It can be provided that in the method for forced steering of a semitrailer on an engaging member 5 rotatably mounted ring member 8 with respect to the rotational angle fixed to the saddle plate 4 is held, and based on the relative angle between the ring member 8 and the engaging member 5 of the rotation angle is determined.
    Alternatively it can be provided that the Drehwinkelaufnehmer 7 is formed opto-electronically. Here, a camera can be arranged on the fifth wheel plate 4 or the engagement element 5, which optically detects the opposite part and thus determines the angle of rotation.
    As another, not shown, alternative may be provided that the Drehwinkelaufnehmer 7 has at least one of the fifth wheel plate 4 and the engagement element 5 connecting reciprocating, which can be deduced by the deflection of the reciprocating piston on the rotation angle.
    Particularly preferably, it can be provided that a support rod 9 is mounted vertically pivotable at a first end to the ring member 8 and at a second end a Nebenkuppelvorrichtung 10 for pivotally coupling the support rod 9 to the tractor unit 2. Here, the support rod 9 forms an at least indirect connection between the ring member 8 and the saddle plate 4, 9 is held by the only vertical pivoting of the support rod 9, the ring member 8 relative to the fifth wheel plate with respect to the angle of rotation, wherein the ring member 8 continues a tilting or rolling motion can follow.
    The support rod 9 may be arranged in particular in the vertical plane of the longitudinal direction of the tractor 2. Furthermore, the support rod 9 may have an angle between 5 ° and 15 ° to the longitudinal direction of the tractor 2.
    By the support rod 9, the ring member 8 are held particularly robust and reliable with respect to the rotation angle.
    Alternatively, it can be provided that on the fifth wheel plate 4 a guide protrudes in the direction of ring element 8, in which an extension of the ring element 8 engages.
    As a further alternative to the support rod 9 can be provided that in the ring member 8 and the fifth wheel plate 4 mutually interacting magnet assemblies are arranged, which hold the ring member 8 with respect to the rotation angle.
    The support rod 9 can in this case be connected in particular by means of a fork joint 23 with the ring element 8, wherein a rotation axis of the fork joint 23 is arranged orthogonal to a rotation axis of the ring element 8. The fork joint 23 allows the ring member 8 a high freedom of movement with respect to a rolling or tilting movement, wherein a rotational movement of the ring member 8 is prevented with respect to the fifth wheel plate 4.
    By means of the auxiliary coupling device 10, the support rod 9 can be connected to the tractor unit 2 in a particularly simple manner. In this case, it may in particular be provided that the tractor unit 2 has a secondary clutch receptacle 19 for coupling with the auxiliary coupling device 10. Here, a majority of the angle measuring device 6 may be arranged on the semi-trailer 3, wherein an existing conventional tractor unit 2 can be easily retrofitted.
    When coupling the semitrailer can hereby in a first step, fifth wheel plate 4 and engagement element 5 are coupled together and in a second step, the auxiliary coupling device 10 are coupled to the auxiliary clutch receiving 19.
    Alternatively it can be provided that the holding rod 9 is pivotally connected to the tractor unit 2 at the second end. In this case, for example, a separation of the fifth wheel on the fork joint 23 take place.
    Particularly preferably, it can be provided that the holding rod 9 has a variable length. Here, the support rod 9 may be formed in particular as a reciprocating piston or as a telescopic rod. As a result, in the case of a tilting movement, the distance between the fork joint 23 and the auxiliary coupling device 10 can easily be varied, the change in length being easily measurable.
    Alternatively it can be provided that on the Nebenkuppelvorrichtung 10 an eyelet is arranged, wherein the support rod 9 is movable with respect to the eyelet.
    Particularly preferably, it can be provided that the Drehwinkelaufnehmer 7 has an electronic angle sensor 11, and that the angle sensor 11 measures the rotation angle between the ring member 8 and the engagement member 5, at least indirectly. By the electronic angle sensor 11, the rotation angle can be easily detected further processed. The angle sensor 11 may in this case be arranged directly adjacent to the ring element 8.
    Particularly preferred may be provided that the angle sensor 11 is formed optoelectronically. In particular, the angle sensor 11 may include a light sensor fixed in position to the engagement element 5 and a code disk arranged on the ring element 8. Here, the rotation angle can be determined in a simple and reliable manner. Such a trained angle sensor 11 is shown in Figs. 1 to 4.
    Furthermore, it can be provided that the angle sensor 11 is designed as a rotary potentiometer.
    Alternatively it can be provided that a magnetic field arrangement is arranged in the ring element 8 or the engagement element 5, and the angle sensor 11 measures the change of the magnetic field.
    Particularly preferably, it may be provided that the ring element 8 is operatively connected to a gear 12, and that the transmission 12 mechanically forwards the angle of rotation between the ring element 8 and the engagement element 5. As gear 12 is understood in this case a device for transmitting the rotational movement. The gear 12 may include, for example, gears, chains, timing belt, V-belt and the like. It can be provided that the transmission 12, a translation of the rotational movement, so a translation or reduction of the rotational movement, accomplished. By the transmission 2, the rotational movement can first be led away mechanically from the engagement member 5, wherein the rotational movement can then be converted by means of the angle sensor 11 into an electrical signal, or can be forwarded directly to the mechanical forced steering.
    It may further be provided that attached to the ring member 8, a gear member 24, in particular integrally formed, is. By the gear member 24, the rotational movement of the ring member 8 can be accurately transmitted to the transmission 12.
    Furthermore, it can be provided that between the ring member 8 and the gear member 24, a cover plate 25 is disposed between which shields the transmission 12 from the environment.
    Particularly preferably it can be provided that the transmission 2 is mechanically operatively connected to the forced steering, wherein a rotational movement of the ring element 2 is only forwarded mechanically to the forced steering. This eliminates a conversion into electronic signals.
    In particular, it can be provided that the transmission 12 connects the ring element 8 with a measuring wheel 26. The measuring wheel 26 can be provided for rotatably mounted mounting on the semitrailer 3. The measuring wheel 26 can in this case convert the rotational movement of the ring element 8 into an electronically processed electrical signal, the measuring wheel 26 representing an electronic angle sensor 11. It can be provided that the gear element 24 and the measuring wheel 26 are operatively connected to each other by means of a gear 12 designed as a toothed belt. Such a preferred embodiment is shown in Figs. 5 to 11.
    Particularly preferably, it can be provided that the angle measuring device 6 has a Kippwinkelaufnehmer 13 for measuring the tilt angle between the engagement member 5 and the fifth wheel plate 4. It can be provided that the tilt angle between the engagement member 5 and the fifth wheel 4 is measured by means of a Kippwinkelaufnehmers 13 of the angle measuring device 6. The tilt angle is - in straight ahead of the tractor - the angle about an axis of rotation, which is horizontal and orthogonal to the longitudinal direction of the semitrailer. By measuring the tilt angle, the driver of the semitrailer can be displayed, whether a uncoupling is possible safely. Furthermore, the tilt angle can be used to determine non-linearities in the determination of the rotation angle from the relative angle between ring element 8 and engagement element 5. Such nonlinearities can occur especially at high tilt angles.
    Particularly preferably, it can be provided that the maximum tilt angle of the fifth wheel is at least 20 ° in both directions.
    In particular, it can be provided that the Kippwinkelaufnehmer 13 has a distance sensor 14 for receiving the distance between the first end of the support rod 9 and the Nebenkuppelvorrichtung 10. The distance sensor 14 may in particular be designed as a piston integrated in the support rod 9. As a result, the distance sensor 14 can be designed to be particularly simple. In a straight ahead of the tractor, the tilt angle can be determined directly by this distance.
    Alternatively it can be provided that the distance sensor 14 is formed opto-electronically, wherein the measured light beam is substantially parallel to the support rod 9.
    According to an embodiment, not shown, it can be provided that the Kippwinkelaufnehmer 13 has a position fixed to the saddle plate 4 first inclination sensor and a positionally fixed to the engagement element 5 second inclination sensor, wherein the tilt angle is determined by comparing the two inclination sensors.
    Particularly preferably, it can be provided that the angle measuring device 6 has a roll angle sensor 15 for measuring the roll angle between the engagement element 5 and the fifth wheel plate 4. It can be provided that the roll angle between the engagement element 5 and the fifth wheel 4 is measured by means of the roll angle sensor 15 of the angle measuring device 6. The roll angle is - in straight ahead of the semitrailer - the angle about an axis of rotation, which runs parallel to the longitudinal direction of the semitrailer. By measuring the roll angle, a warning to the driver can be issued when the semitrailer 3 is very unstable. Furthermore, it can be provided that the semitrailer 3 has a stabilization device, which can prevent strong rolling movements of the semitrailer 3, for example, by changing the suspension of the suspension automatically. Furthermore, the roll angle can be used to determine nonlinearities in the determination of the rotation angle from the relative angle between ring element 8 and engagement element 5. Such nonlinearities can occur especially at high roll angles.
    Particularly preferably, it can be provided that the maximum roll angle of the fifth wheel is at least 20 ° in both directions.
    In particular, it can be provided that the roll angle sensor 15 has a rotation sensor 16 for receiving a rotation of the support rod 9 about its longitudinal axis. As a result, the roll angle sensor 15 can be designed to be particularly simple. If the support rod 9 extends substantially parallel to the longitudinal axis of the semitrailer tractor 2, the rotation of the support rod 9 in a straight ahead driving substantially corresponds to the roll angle.
    According to an embodiment, not shown, it may be provided that the roll angle sensor 15 has a first inclination sensor fixed to the saddle plate 4 and has a second inclination sensor fixed to the engagement element 5, wherein the roll angle is determined by comparing the two inclination sensors.
    Particularly preferably, it can be provided that the angle measuring device 6 comprises a control unit, and that the control unit is operatively connected at the input at least with the Drehwinkelaufnehmer 7. The control unit can be operatively connected to the output steering of the semitrailer 3 on the output side.
    Particularly preferably, it can be provided that the control unit is connected at the input to the tilt angle sensor 13 and the roll angle sensor 15. In this case, the control unit has as inputs the measured values of the rotational angle sensor 7, the tilting angle sensor 13 and the roll angle sensor 15. Here, the rotational angle sensor 7, the tilting angle sensor 13 and the roll angle sensor 15 can output measured variables which are used to determine the actual rotational angle, tilt angle or roll angle in the control unit can be combined. For example, in the case of a large angle of rotation, the tilt angle depends strongly on the output measured variable of the roll angle sensor 15. In this case, the control unit can in particular have tables of the measured quantities of the sensors and the corresponding angles. By combining two, in particular all three, measured variables of the three transducers, the angles in question can be reliably determined even with large torsions of the fifth wheel coupling.
    Furthermore, it can be provided that the control unit on the output side stabilizing device is operatively connected.
    claims:
    权利要求:
    Claims (15)
    [1]
    Dl DR. FERDINAND GIBLER pini pnO Π ^ ΤΙ I DR DR. WOLFGANG POTH OIDLuKOC TV I Π Trademark Attorneys PATENT OFFICES CLAIMS 1. Fifth wheel coupling (1) for coupling a semitrailer tractor (2) to a semi-trailer (3), with a fifth wheel (4) for mounting on the semitrailer tractor (2) and an engagement element (5) for mounting on the semitrailer (3), characterized in that an angle measuring device (6) comprises a Drehwinkelaufnehmer (7) for measuring the angle of rotation between the engaging element (5) and the Saddle plate (4) is provided.
    [2]
    2. fifth wheel (1) according to claim 1, characterized in that the angle measuring device (6) comprises a ring element (8) that the ring element (8) at least partially surrounds the engagement element (5) and with respect to the rotational angle relative to the engagement element (5) is mounted rotatably, and that the ring element (8) with respect to the rotation angle is held fixed to the saddle plate (4).
    [3]
    3. fifth wheel (1) according to claim 2, characterized in that a holding rod (9) at a first end to the ring member (8) is mounted vertically pivotable and at a second end a Nebenkuppelvorrichtung (10) for pivotally coupling the support rod (9 ) to the tractor unit (2).
    [4]
    4. fifth wheel (1) according to claim 2 or 3, characterized in that the Drehwinkelaufnehmer (7) has an electronic angle sensor (11), and that the angle sensor (11) the angle of rotation between the ring element (8) and the engagement element (5) at least indirectly measures.
    [5]
    5. fifth wheel (1) according to one of claims 2 to 4, characterized in that the ring element (8) with a gear (12) is operatively connected, and that the transmission (12) the angle of rotation between the ring element (8) and the engagement element (5) mechanically forwards.
    [6]
    6. fifth wheel (1) according to one of claims 1 to 5, characterized in that the angle measuring device (6) has a Kippwinkelaufnehmer (13) for measuring the tilt angle between the engagement element (5) and the fifth wheel plate (4).
    [7]
    7. fifth wheel (1) according to claim 3 and 6, characterized in that the Kippwinkelaufnehmer (13) has a distance sensor (14) for receiving the distance between the first end of the support rod (9) and the Nebenkuppelvorrichtung (10).
    [8]
    8. fifth wheel (1) according to one of claims 1 to 7, characterized in that the angle measuring device (6) has a Wankwinkelaufnehmer (15) for measuring the roll angle between the engagement element (5) and the fifth wheel plate (4).
    [9]
    9. fifth wheel (1) according to claim 3 and 8, characterized in that the Wankwinkelaufnehmer (15) has a rotation sensor (16) for receiving a rotation of the support rod (9) about its longitudinal axis.
    [10]
    10. fifth wheel (1) according to one of claims 1 to 9, characterized in that the engagement element (5) has a coupling ball (17).
    [11]
    11. fifth wheel (1) according to claim 10, characterized in that on the coupling ball (17) a neck (18) is integrally formed, and that a connecting line between a center of the coupling ball (17) and the neck (18) forms an angle between ° and 10 ° to a horizontal.
    [12]
    12. fifth wheel (1) according to one of claims 1 to 11, characterized in that the angle measuring device (6) comprises a control unit, and that the control unit at the input at least with the Drehwinkelaufnehmer (7) is operatively connected.
    [13]
    13. semitrailer comprising a tractor unit (2) and a semitrailer (3), characterized in that the tractor unit (2) and the semitrailer (3) by means of a fifth wheel (1) according to one of claims 1 to 11 are coupled together.
    [14]
    14. Tractor unit according to claim 13, characterized in that the semi-trailer (3) has a forced steering, and that the steering angle of the forced steering by the angle measuring device (6) is predetermined.
    [15]
    15. Tractor unit according to claim 13 or 14, characterized in that the tractor unit (2) has a secondary coupling receptacle (19) for coupling with the auxiliary coupling device (10).

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    同族专利:
    公开号 | 公开日
    AT514448B1|2015-03-15|
    EP2815950B1|2016-08-17|
    EP2815950A1|2014-12-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    DE20306787U1|2003-05-02|2004-09-16|Georg Fischer Verkehrstechnik Gmbh|Device for detecting the angle between a semitrailer tractor and a semitrailer|
    DE102007020770A1|2007-05-03|2008-11-13|Bubenzer Bremsen Gerhard Bubenzer Ing. Gmbh|coupling device|
    WO2010060125A1|2008-11-28|2010-06-03|Scharmueller Josef|Fifth wheel coupling|
    DE102009002334A1|2009-04-09|2010-10-21|Jost-Werke Gmbh|Method and control system for a displacement device with detection of buckling of towing vehicles and semitrailers|
    US7793965B2|2006-02-10|2010-09-14|Padula Santo A|Trailer steering system for a tractor/trailer combination|
    GB0715142D0|2007-08-03|2007-09-12|Cambridge Entpr Ltd|Active steering controller|
    US8917170B2|2011-10-04|2014-12-23|Santo A. Padula|Apparatus for measuring articulation angle between a tractor and trailer in an articulated vehicle|EP3379222B1|2017-03-22|2020-12-30|Methode Electronics Malta Ltd.|Magnetoelastic based sensor assembly|
    DE102017126503A1|2017-11-10|2019-05-16|Syn Trac Gmbh|Ball head device with rotation angle sensor device|
    US11221262B2|2018-02-27|2022-01-11|Methode Electronics, Inc.|Towing systems and methods using magnetic field sensing|
    US11084342B2|2018-02-27|2021-08-10|Methode Electronics, Inc.|Towing systems and methods using magnetic field sensing|
    US11135882B2|2018-02-27|2021-10-05|Methode Electronics, Inc.|Towing systems and methods using magnetic field sensing|
    DE102019134012A1|2019-12-11|2021-06-17|Saf-Holland Gmbh|Kingpin arrangement and articulation angle measuring system|
    DE102020121315A1|2020-08-13|2022-02-17|Saf-Holland Gmbh|Coupling system with kink angle measurement|
    法律状态:
    2019-02-15| MM01| Lapse because of not paying annual fees|Effective date: 20180618 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA491/2013A|AT514448B1|2013-06-18|2013-06-18|fifth wheel|ATA491/2013A| AT514448B1|2013-06-18|2013-06-18|fifth wheel|
    EP14450029.5A| EP2815950B1|2013-06-18|2014-06-04|Fifth wheel|
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