• 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:
    The invention relates to a system for wiping (1) a glazed surface of a motor vehicle having a windscreen washer system (3) suitable for use in association with a reservoir (5) containing a washing liquid, said washing system being wiper comprising - a drive motor (7) of at least one brush arm, and - means (9) for generating electrical control signals related to the drive motor (7), and the control system windscreen washer (3) comprising - a pump (11) intended to be fluidly connected on the one hand to said tank (5), and on the other hand to at least two jets, and - a switch (17) having at least one first position to supply said at least one nozzle capable of delivering a jet of liquid at the windshield and a second position for supplying said at least one nozzle capable of delivering a jet of liquid at the rear window. The pump (11) is a bi-directional pump adapted to be driven in two opposite directions of rotation to supply one or the other of the nozzles under the control of said switch (17) and the windshield washer system (3) comprises a component selective electric motor (29) for supplying in the first position of the switch (1) the bidirectional pump (11) via the generating means (9) of electrical control signals connected to the drive motor (7) as a function of the angular position of the brush arm on the glass surface and for shunting said generating means (9) in the second position.
    公开号:FR3023813A1
    申请号:FR1456856
    申请日:2014-07-17
    公开日:2016-01-22
    发明作者:Jean Jendraszczak；Pierre Blanchet；Eric Gallaud
    申请人:Valeo Systemes dEssuyage SAS；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a wiper system for a glazed surface of a motor vehicle, such as the windshield and / or the rear window, having a system for cleaning the vehicle. windshield washer. In washerwash systems existing to date, it is known to provide that the washing liquid is diffused only on a part of its upward or downward path, the broom on the glass surface. Thus, windshield washer systems for controlling the spray when the brush arm (s) are in predefined angular areas have already been developed. US 4,275,477 describes a first type of windshield washer system capable of cooperating with the wiper system of a vehicle windshield. The washer system is structurally independent of the wiper system, in particular by the fact that the nozzles are fixed relative to the hood of the vehicle. However, the two systems cooperate closely because a portion of the washing liquid contained in the cleaning tank is removed by a pump using information and electrical commands given by a cam located on the drive motor of the brush arm. . More specifically, in this system, it is expected that there is no liquid spraying when the arm arrives near the jet of the nozzle. Document FR2927295 discloses a wiper system for a glazed surface of a motor vehicle having a washer system suitable for use in association with a reservoir containing a washing liquid. This wiper system comprises a drive motor of a brush arm, and means for generating electrical control signals related to the drive motor adapted to generate signals (STOP_FIXE, PUMP) electrical control varying in size. function of the angular position of the broom arm on the glass surface. The windshield washing system comprises a bidirectional pump intended to be fluidly connected on the one hand to said tank, and on the other hand to nozzles, arranged on the brush-holding arm and able to deliver at least two jets of liquid from and other arm on the windshield.
    [0002] WFR1728 2 The bidirectional pump may be driven in two opposite directions of rotation to alternately supply one or the other of the nozzles under the control of said electric control signal generating means so as to deliver jets of liquid in front of the arm relative to the scanning direction.
    [0003] However, to power a rear window, there must be another pump with its own electrical control circuit. The present invention aims to provide a simplified wiper system allowing with a single pump to deliver both a jet of liquid on the windshield and on the rear window while allowing delivery of the jet of liquid on the windshield according to the angular position of the brush arm on the glass surface. For this purpose, the subject of the invention is a wiper system for a glazed surface of a motor vehicle having a windscreen washer system that can be used in combination with a reservoir containing a washing liquid, said wiper system. Comprising - a drive motor of at least one brush arm, and - electrical control signal generation means connected to the drive motor capable of generating electrical control signals varying according to the angular position the wiper arm on the glass surface, and the windshield wiper system comprising - a pump intended to be fluidly connected on the one hand to said reservoir, and on the other hand to at least two jets of which at least one is suitable delivering a jet of liquid at the windshield of a vehicle and at least one other is capable of delivering a jet of liquid at the rear window of a vehicle, and 25 - a switch having at least a first position for supplying said at least one nozzle capable of delivering a jet of liquid at the windshield and a second position for feeding said at least one nozzle capable of delivering a jet of liquid at the rear window, - characterized in that that the pump is a bidirectional pump adapted to be driven in two opposite directions of rotation to supply one or the other of the nozzles under the control of said switch and in that the windshield washer system comprises a selective electrical component for supplying in the first position of the switch the bidirectional pump via the electrical control signal generating means connected to the drive motor in WFR1728 3 function of the angular position of the brush holder arm on the glass surface and to shunt said generating means in the second position. Thus, the electrical control circuit for powering the bidirectional pump is simplified and the wiper system is less expensive. The wiper system may further comprise one or more of the following characteristics taken alone or in combination: Said selective electrical component comprises for example an electric bypass line arranged in parallel with said generating means and a diode disposed in the bypass electrical line. . In one aspect, the bias of said diode is selected to be in the blocking state in the first position and in the on state at the second position of the switch.
    [0004] In another aspect, the system includes a first power line directly connecting a first output of the switch to said bidirectional pump and a second power line connecting a second output of the switch to said bidirectional pump through inputs / outputs of the generating means, the bypass line being arranged to directly connect the input / output of the generating means. Said selective electrical component may comprise an electrical relay.
    [0005] The system may include a first power line directly connecting a first output of the switch to said bidirectional pump and a second power line connecting a second output of the switch to said bidirectional pump through input / output of said relay, the relay having an input of control connected to an output of the generating means so as to control the switching of relays between a closed position in which the bidirectional pump delivers a jet of liquid and an open position interrupting the delivery of a jet of liquid. In another aspect, the switching of the relay is controlled by activation of a coil actuating a switch.
    [0006] WFR1728 4 Said generation means comprise for example a cam surface linked to rotation concentrically with the shaft of the drive motor, and fixed means for reading the cam adapted to cooperate with said cam according to the angular positions occupied by said cam , said generation means being thus able to deliver on the reading means two electrical control signals each varying as a function of the angular position of the wiper arm on the glass surface, a first electrical control signal used to define an angular window wherein the drive motor is rotated and manages the stopping of the motor in a fixed off position of the arm, and a second electrical control signal for determining the periods in which the bidirectional pump of the washing system. window must be effectively operated.
    [0007] The cam surface comprises, for example, circular arc conductor tracks, and the fixed reading means consist of wipers able to enter or not into electrical contact with the conductive tracks according to the angular positions occupied by said cam.
    [0008] The switch may include a dual switch. Other advantages and characteristics will appear on reading the description of the invention, as well as the appended drawings in which: FIG. 1 is a schematic representation of a wiper system according to the invention according to a first embodiment of embodiment with a first angular position of a drive motor of a brush arm, - Figure 2 is a schematic representation of the wiper system of Figure 1 with a second angular position of the drive motor of the arm 3 to 7 are diagrammatic representations of a wiper system according to the invention according to a second embodiment in various operating situations. In these figures, the identical elements bear the same reference numbers.
    [0009] WFR1728 5 will now be described an example of a first embodiment with reference to Figures 1 and 2 of a system 1 for wiping a glazed surface of a motor vehicle. This system 1 comprises a windshield washer system 3 suitable for use in association with a tank 5 containing a washing liquid. The wiper system 1 comprises a drive motor 7 of at least one wiper arm (not shown), in particular a wiper arm located at the windshield. The system 1 further comprises means 9 for generating electrical control signals related to the drive motor 7 capable of generating electrical control signals varying according to the angular position of the brush-holder arm on the glass surface, that is, the windshield in this case. The windshield washing system 3 comprises a bidirectional pump 11 which is fluidly connected on the one hand to said tank 5 and on the other hand respectively via two discharge pipes 13 and 15 to at least two nozzles (not shown). The discharge pipe 13 is connected to a nozzle capable of delivering a jet of liquid to the windshield of a vehicle and the discharge pipe 15 is connected to a nozzle capable of delivering a jet of liquid at the rear window of the vehicle. vehicle. The direction of rotation of the bi-directional pump 11 determines which of the two discharge lines 13 or 15 is fed to which nozzle, the windshield or the level of the rear window, it delivers a jet of washing liquid. The washer system 3 further comprises a switch 17, for example a dual switch formed of two individual linked switches 17A / 17B, that is to say, move simultaneously in one direction.
    [0010] The switch 17 comprises in this embodiment two inputs 19A and 19B, one of which is connected to a positive terminal and the other to ground and two outputs 21A and 21B. The positive terminal 19A splits into a fork of external contacts 23A and 23B and the ground terminal 19B splits into a fork of the inner contacts 25A and 25B. The switches 17A and 17B can take three positions: A neutral position as shown in Figure 1 in which they are not in contact with the outer contacts 23A, 23B or inner 25A and 25B. In this position, there is no power supply to the pump 11.
    [0011] WFR1728 6 A low position or first position (indicated by the arrow B) in which the switch 17A is in contact with the contact 25A and the switch 17B with the contact 23B. In this case, the positive input terminal 19A is connected to the output terminal 21B and the terminal 21A is connected to ground.
    [0012] This position will be defined for example to activate the pump 11 in a first direction of rotation for delivering a jet of liquid on the windshield via the discharge pipe 13. A high position or second position (indicated by the arrow A) in which the switch 17A is in contact with contact 23A and switch 17B with contact 25B. In this case, the positive input terminal 19A is connected to the output terminal 21A and the terminal 21B is connected to ground. This position will be defined for example to activate the pump 11 in a reverse direction of rotation for delivering a jet of liquid on the rear window via the discharge pipe 15.
    [0013] The terminal 21A is connected via a first power line 22 to an input terminal of the bidirectional pump 11 and the terminal 21B to a first connection terminal 27A. A second connection terminal 27B is connected to the other input terminal of the bidirectional pump 11. The two connection terminals 27A and 27B are connected to the means 9 for generating electrical control signals. The windshield washer system further comprises a selective electrical component 29 for supplying the bidirectional pump 11 via the means 9 for generating electrical control signals connected to the drive motor 7 as a function of the angular position in the first position of the switch 17. the wiper arm on the glass surface and shunting said generating means 9 in the second position.
    [0014] In the present embodiment, said selective electrical component 29 comprises an electric bypass line 31 arranged in parallel with said generating means 9 and a diode 33 disposed in the bypass electrical line 31. More precisely, the bypass line 31 is arranged to connect WFR1728 7 directly the input / output, that is to say the terminals 27A, 27B generation means 9. The bias of the diode 33 is chosen to be in the blocking state in the first position and in the on state at the second position of the switch 17. By way of example, said generating means 9 comprise a camming surface 35 which is concentrically rotated with the shaft of the drive motor 7. In the present case this surface is a disc with three concentric tracks 37A, B and C. The first track 37A, the innermost one comprises a conductive track 39 in an arc. First and second friction contacts 41A and 41B respectively connected to the terminals 27A and 27B are arranged at a distance from each other on this first track 37A. Thus, when the two rubbers 41A and 41B are simultaneously in contact with the conductive track 39, an electrical connection is established between the terminals 27A and 27B.
    [0015] A conductive segment 43 of small extent overlaps the tracks 37B and C, the outermost tracks. A third wiper contact 45A is disposed in front of the track 37B and connected to an intelligent service box (BSI) 47 and a fourth wiper contact 45B is disposed in front of the track 37C and is connected to ground.
    [0016] When the two shoes 45A and B are together on the conductive segment 43, the BSI box 47 is connected to ground which marks a stop signal for the drive motor 7. The drive motor 7 is connected to two PV and GV power supplies as well as to ground.
    [0017] The wiper system 1 operates as follows: When the switch 17 is in the neutral position, while the drive motor 7 is powered or not, the bidirectional pump 11 is not powered and there is no washing liquid jet delivered.
    [0018] WFR1728 8 When the switch 17 is in its up position or second position (indicated by the arrow A), independently of the supply of the driving motor 7 and the position of the cam 35, the electric current passes through the pump 11 and by the bypass 31 and the diode 33, so that a jet of washing liquid delivered on the rear window by the discharge pipe 15. Indeed, in this position of the switch 17, the diode 33 is in the state passing. Conversely, when the switch 17 is in its low position or first position (indicated by the arrow B), the current can no longer pass through the bypass 31 since the diode 33 is for this polarization in the blocking state. .
    [0019] In this case, the pump 11 can be fed only through the generation means 9, more specifically when the two rubbers 41A and 41B are simultaneously in contact with the conductive track 39 (as shown in Figure 1). In this case, a reverse bias electrical connection with respect to the second position of the switch 17 can supply the pump 11 which thus rotates in the opposite direction and feeds via the discharge pipe 13 the windshield. In this case, the projection time of the liquid jet and the precise start time of the projection depends on the angular position of the cam 35 and therefore the position of the brush arm on the window. As can be seen in FIG. 2, the cam 35 is in a different angular position and the two rubbers 41A and 41B are no longer in contact with the conductive track 39, but with the insulating portion of the first track 37A. In this case, the electrical connection of the pump 11 is interrupted. Figures 3 to 7 show another embodiment which differs from that of Figures 1 and 2 by the following points: In the "neutral" position of the switch 17, the switches 17A and 17B are in contact with the electrical contacts 25A and 25B and therefore connected to the mass. There is no floating potential as in the neutral position of the embodiment of Figure 1. Then, the selective electrical component 29 comprises an electrical relay 51 which functionally replaces the diode 33. A resistor 53 is connected in parallel with the relay 51. The relay 51 has a rocker switch 55 which by an elastic force, for example a spring, is held in a position connecting an output of the relay to the bidirectional pump 11, unless a coil 57 of the relay is traversed by a WFR1728 9 current. In the latter case, the magnetic force of the coil switches the switch 55 to a neutral position by connecting the latter to a floating potential terminal 59. Then there is a difference in the generation means 9. The cam 35 always has three tracks 37A, B and C and a conductive track 39 in an arc, for example over 175 ° (NB: please confirm). However, the track 37B now also has a track 61 in a circular arc parallel to the track 39 and slightly longer than the track 39, for example 180 ° to extend in the conductive segment 43 of small extent (STOP_POMPE) overlapping tracks 37B and C, the outermost tracks. This track 61 is electrically connected to the track 39. An output of the relay connected to the coil 57 is connected to a rubbing contact 63 located vis-à-vis the track 37A.
    [0020] A rubbing contact 65 located opposite the track 37B is connected to the ground and a rubbing contact 67 located opposite the track 37C is connected to a FIXED STOP signal line. In Figure 3, the switch 17 is in the neutral position. In this case, whether the drive motor 7 is powered or not, the bi-directional pump 11 is connected to ground and is therefore not powered and there is no stream of washing liquid delivered. In FIG. 4, the switch 17 is in its position high or second position, the electric current passes through the pump 11 and by the relay 51 independently of the supply of the driving motor 7 and the position of the cam 35, so that a jet of washing liquid is delivered to the rear window by the discharge line 15. Indeed, in this position the coil 57 is always connected to ground. The relay therefore consumes no current and the switch 55 of the relay remains in its position in which it is connected to the pump 11. The relay 51 thus shunts said generating means 9 in this second position.
    [0021] In FIGS. 5 to 7, the switch 17 is in its low position or first position and three different positions have been shown for the cam 35. In FIG. 5, the drive motor 7 is in the fixed stop position. Therefore, the rubbing contact 63 is not in electrical contact with the conductive tracks of the cam 35 so that the coil 57 is not powered. In this configuration, the pump 11 is fed in the opposite direction with respect to the second position of the switch 17 and the windshield nozzle (s) are supplied via the discharge pipe 13. In FIG. drive motor 7 has moved by turning to the left, which corresponds to that the brush holder leaves its position OFF_FIXE and mounts. Since the friction contact 63 is still on the non-conductive part of the track 37A, the pump is fed as explained with reference to FIG. 5. Then, in FIG. 7, the drive motor 7 has arrived at the position of inversion of the movement of the door brush. At this moment, the friction contact 63 is on the track 39 and the friction contact 65 is on the conductive track 61 and therefore grounded. Thus, while the two friction contacts 63 and 65 are respectively on the conductive tracks 39 and 61, the coil 57 is energized and therefore switches the switch 55 of the relay 51 so as to interrupt the supply of the pump 11. The latter is thus no longer fed during all the return movement of the brush arm towards the position STOP_FIXE. It is constant that this circuit is energetically advantageous because the coil 57 of the relay is energized only during the return movement of the brush arm. It is thus clear that the present invention makes it possible to combine a bi-directional pump 11 of a window washer system for supplying a rear window and windshield with means 9 for generating electrical control signals related to the driving motor 7 capable of generating electrical control signals varying according to the angular position of the brush arm on the glass surface.
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. Wiper system (1) for a glass surface of a motor vehicle having a windscreen washer system (3) suitable for use in combination with a reservoir (5) containing a washing liquid, said wiper system comprising: a drive motor (7) of at least one brush arm, and - means (9) for generating electrical control signals related to the drive motor (7) adapted to generate electrical control signals varying according to the angular position of the wiper arm on the glass surface, and the wiper system (3) comprising - a pump (11) intended to be fluidly connected to said reservoir (5), and to secondly at least two nozzles, at least one of which is capable of delivering a jet of liquid at the windshield of a vehicle and at least one other of which is capable of delivering a jet of liquid at the rear window of the vehicle; a vehicle, and - a switch (17) having at least one prem first position for supplying said at least one nozzle capable of delivering a jet of liquid at the windshield and a second position for supplying said at least one nozzle capable of delivering a jet of liquid at the rear window, - characterized in that the pump (11) is a bidirectional pump adapted to be driven in two opposite directions of rotation to supply one or the other of the nozzles under the control of said switch (17) and in that the windshield washer system (3) comprises a selective electrical component (29) for supplying in the first position of the switch (1) the bidirectional pump (11) via the generating means (9) of electrical control signals connected to the driving motor (7) as a function of the angular position of the brush arm on the glass surface and to shunt said generating means (9) in the second position.
    [0002]
    2. A wiper system according to claim 1, characterized in that said selective electrical component (29) comprises an electric bypass line (31) arranged in parallel with said generating means and a diode (33) disposed in the electrical line of bypass (31) .WFR1728 12
    [0003]
    Wiper system according to claim 2, characterized in that the polarization of said diode (33) is selected to be in the blocking state in the first position and in the on state at the second position of the switch. (17).
    [0004]
    4. A wiper system according to claim 2 or 3, characterized in that it comprises a first electrical line (22) directly connecting a first output (21A) of the switch (17) to said bidirectional pump (11) and a second an electrical line connecting a second output (21B) of the switch (17) to said bidirectional pump (11) through input / output of the generating means (9), the bypass line (31) being arranged to directly connect the input / output generation means (29).
    [0005]
    The wiper system of claim 1, characterized in that said selective electrical component (29) comprises an electrical relay (51).
    [0006]
    Wiper system according to claim 5, characterized in that it comprises a first electrical line directly connecting a first output of the switch to said bidirectional pump and a second electrical line connecting a second output of the switch to said bidirectional pump by passing by an input / output of said relay (51), the relay (51) having a control input connected to an output of the generating means (9) so as to control the switching of relays between a closed position in which the bidirectional pump ( 11) delivers a jet of liquid and an open position interrupting the delivery of a jet of liquid.
    [0007]
    7. A wiper system according to claim 6, characterized in that the switching of the relay (51) is controlled by activation of a coil (57) actuating a switch (55).
    [0008]
    Wiper system according to one of the preceding claims, characterized in that said generating means (9) comprise a cam surface (35) which is concentrically rotated with the drive motor shaft (7). and fixed means for reading the cam (41A, 41B, 45A, 45B, 63, 65, 67) adapted to cooperate with said cam (35) according to the angular positions WFR1728 13 occupied by said cam, said generating means (9 ) being thus able to deliver on the reading means two electric control signals (STOP_FIX, POMPE) each varying as a function of the angular position of the brush-holder arm on the glass surface, a first electrical control signal (ARRET_FIXE) used to define an angular window in which the drive motor is rotating and manage the stopping of the motor in a fixed stop position of the arm, and a second electrical control signal (PUMP) for determining iner the periods in which the bidirectional pump (11) of the windshield washer system is to be effectively actuated.
    [0009]
    Wiper system according to Claim 8, characterized in that the cam surface (35) has arcuate conductor tracks (39, 43, 61) and that the stationary reading means (41A, 41B, 45A, 45B, 63, 65, 67) are constituted by wipers capable of entering or not into electrical contact with the conductive tracks (39, 43, 61) according to the angular positions occupied by said cam (35).
    [0010]
    Wiper system according to one of the preceding claims, characterized in that the switch (17) comprises a double switch (17A, 17B).
    类似技术:
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    同族专利:
    公开号 | 公开日
    JP6571158B2|2019-09-04|
    JP2017520468A|2017-07-27|
    EP3169567B1|2018-10-10|
    CN106536297A|2017-03-22|
    MX2017000697A|2017-05-01|
    WO2016008680A1|2016-01-21|
    CN106536297B|2020-01-14|
    EP3169567A1|2017-05-24|
    US20170203723A1|2017-07-20|
    FR3023813B1|2016-08-12|
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    CN110654347A|2018-06-28|2020-01-07|常熟法雷奥汽车雨刮系统有限公司|Wiper system and motor vehicle comprising a wiper system|
    FR3084790A1|2018-08-01|2020-02-07|Valeo Systemes D'essuyage|DIRECT CURRENT ELECTRIC MOTOR, MOTOR-REDUCER AND WIPING SYSTEM|
    CN111873943B|2020-07-28|2022-02-01|中国第一汽车股份有限公司|Rear wiper control system, rear wiper control method, rear wiper control device and storage medium|
    法律状态:
    2015-07-31| PLFP| Fee payment|Year of fee payment: 2 |
    2016-01-22| PLSC| Search report ready|Effective date: 20160122 |
    2016-07-29| PLFP| Fee payment|Year of fee payment: 3 |
    2017-07-31| PLFP| Fee payment|Year of fee payment: 4 |
    2018-07-27| PLFP| Fee payment|Year of fee payment: 5 |
    2019-07-31| PLFP| Fee payment|Year of fee payment: 6 |
    2020-07-31| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1456856A|FR3023813B1|2014-07-17|2014-07-17|WIPING SYSTEM FOR MOTOR VEHICLE WITH WINDOW WASH SYSTEM|FR1456856A| FR3023813B1|2014-07-17|2014-07-17|WIPING SYSTEM FOR MOTOR VEHICLE WITH WINDOW WASH SYSTEM|
    PCT/EP2015/063991| WO2016008680A1|2014-07-17|2015-06-22|Wiper system for a motor vehicle with screen wash system|
    EP15730195.3A| EP3169567B1|2014-07-17|2015-06-22|Wiper system for a motor vehicle with screen wash system|
    CN201580039134.7A| CN106536297B|2014-07-17|2015-06-22|Wiper system for a motor vehicle with a glass washing system|
    MX2017000697A| MX2017000697A|2014-07-17|2015-06-22|Wiper system for a motor vehicle with screen wash system.|
    US15/326,549| US20170203723A1|2014-07-17|2015-06-22|Wiper system for a motor vehicle with screen wash system|
    JP2017502591A| JP6571158B2|2014-07-17|2015-06-22|Wiper system for motor vehicles with screen cleaning system|
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