FR2622853A1 - METHOD FOR CONTROLLING A REAR WIPER AND DEVICE FOR IMPLEMENTING THE METHOD, IN PARTICULAR WITH INTERMITTENT OPERATION CONTROL - Google Patents

Abstract

Method for controlling a rear wiper and device for implementing the method, in particular with intermittent operating control. It is characterized in that the rear wiper 30 is connected when the front wiper 10 is in operation and the vehicle is in reverse. The invention relates to a method for controlling a rear wiper and to a device for implementing the method.

Description

A method of controlling a rear wiper and

  device for carrying out the process, in particular

  intermittently operating control. "

  The invention relates to a method for controlling a rear window wiper equipping a motor vehicle, comprising at least one front wiper and one reverse detector, a method characterized in that

  connect the rear wiper when the wiper

  front ice is implemented and that the vehicle is

backwards.

  The invention also relates to a device for implementing this method, a device of the

  type above, characterized by a function command

  intermittent operation of the rear wiper

  pre, associated with the rear wiper.

  It is known to use a mounted switch

  on the dashboard and which allows to implement

  or cut the rear wiper. The case

  appropriate, there is a second switch for a function

periodically.

  The present invention relates to a method of

  type above, characterized by connecting the

  soot-rear ice when the front wiper is

  implemented and that the vehicle is in reverse

  re. This method offers the advantage of using the rear wiper of the vehicle when

  the front windshield wiper operates and the

  is placed. During a garage maneuver

  or other maneuver in reverse, the expectation

  the driver is being solicited very intensively

  especially when it is raining. The deletion of an order and the automatic implementation of

  the rear wiper is a means of securing

advantage.

  Another advantage of the process of the invention

  lies in the fact that it is not necessary to

  see a rain detector to implement the

  soot-rear ice, because this function is provided by

  the implementation of the front wiper.

  The automatic implementation of the wiper

  rear window by means of an operating

  Termittent associated with this wiper allows an advantageous adaptation of the scanning frequency in

case of low intensity rain.

  The device according to the invention is characterized

  made by intermittent operation control

  the clean rear wiper associated with the wiper

  rear window. This device is particularly

  simply by means of an electrically operated switch which connects a detecting device of the implementation of reversing

and the rear wiper.

  According to an advantageous development of the

  of the invention, there is a diode for uncoupling

  the rear wiper and other equipment

  related to the reverse detector.

  Drawings: - Figure 1 is a diagram of a device according to

  the invention for controlling a rear wiper

  re. FIG. 2 shows an advantageous embodiment on

  the plan of the congestion of the diagram of FIG.

  Description of the exemplary embodiment:

  Figure 1 shows a front wiper 10 of a motor vehicle not shown. The wiper comprises an electric motor 11 provided with a first

  and a second branch 12, 13 and a branch

  14 connected to the mass of the vehicle. A branch

  The power supply 16 to the current source is connected by a first switch contact 17 which is part of the switch 18 of the

  the front wiper at an electrical connection 12.

  A second switching contact 19 of the front wiper switch 18 provides the connection between the connection terminal 13 and the terminal 16. A third

  switching contact 20 of the switch 18 of the

  soot-front ice connects the connection 16 to the intermittent operation control 21 of the front wiper. The lines terminating at the terminals 12, 13 as well as the intermittent operation control 21 are connected to an OR gate 22 whose output controls a first relay 23. A switching path 24 of the first relay 23 provides the connection between the terminal 16

  and the switching path 25 of a second relay 26.

  The second relay 26 is controlled by a device 27

  which detects the passage of the reverse gear. The detection

  The reverse gear 27 is connected on the one hand to the power supply terminal 16 and on the other hand to another device 28, for example a reversing light. The switching path 25 of the second relay 26 connects the switching path 24 of the first relay 23 to a control

  periodic operation 29 of the windscreen wiper

  the device 29 to which the rear wiper 30 is connected. The two switching paths 24, 25

  may be shunted by a first contact of

  31 of the rear wiper switch 32. A second switch contact 33 of the rear wiper switch 32 connects the terminal 16 to the periodic operation control of the wiper switch 32.

rear window soot 29.

  The process according to the invention will be described below.

  afterwards in more detail using the diagram of the

  device of the invention shown in Figure 1.

  The front wiper 10 is controlled by means of the front wiper switch 18.

  example, three modes of operation that are

  with the first, second and third

  switching tact 17 ... 20. The closing of the first switching contact 17 corresponds for example to the choice of a slow sweep and the closing of the second switching contact 19 has a fast sweep. Closing the third switching contact 20 implements the periodic operation command 21

  the front wiper 10. When operating the

  mutator of the windscreen wiper 18 by closing at least one of the switching contacts 17 ... 20, the OR gate 22 actuates the first relay 23. The path

  24 of the first relay 23 is thus always

  days closed when the front wiper 10 function-

  born. There is no distinction between continuous operation

  naked and intermittent operation.

  The reverse detector 27 provides a signal to actuate the second relay 26 when the vehicle has put the reverse gear. The reverse signal can be applied to other means 18

  for example to a backup light. The path of commutation

  25 of the second relay 26 is thus closed when

uses reverse gear.

  Both switching paths 24 and 25 are closed simultaneously when the front wiper

  is implemented and that we are backwards

  re. After closing both switching paths

  24, 25, the rear wiper 30 is activated.

  Depending on the position of the second switch contact 33 of the rear wiper switch 32, the

  rear wiper interval control 29

  between the permanent functioning and the functioning

  Periodically, the rear wiper 30.

  the operation of the windscreen wiper 10 or the implementation of reverse gear, it is possible to

  control the rear wiper 30 using the first

  first switch contact 31 of the

rear window soot 32.

  According to an advantageous wrapping of the arrangement

  of the invention according to the diagram of FIG. 1, the switching path 25 of the second relay 26 is

  replaced by a diode 34 which links the path

  mutation 24 of the first relay 23 to the periodic operation control of the rear wiper 29. It is then possible to delete the second relay 26. The switching path 24 of the first relay 23 connects the diode 34 to the reverse detector 27 which is realized in the simplest case in the form of a switch whose switching path provides the connection with the terminal 16 when passed the reverse. The diode 34 decouples the rear wiper of the other installations 28 connected to the detector of

  reverse 27. Decoupling avoids the implementation of

  the other facilities 28 when the rear wiper 30 is operated by the first switching contact 31 of the rear wiper switch

  32 but reverse gear is not used.

  Figure 2 shows a schematic layout

  according to the invention shown in FIG.

  FIGS. 2 and 2 show the same references as in FIG. 1. FIG. 2 shows a switching device 33 which receives as input signals the control of the three switching contacts 17. of the eshop switch

  soot before 18, the implementation of the two

  31, 33 of the rear wiper switch

  32 as well as the output signal of the

  27. The power supply of the

  tif switching 35 is through the lines connected to

  terminal 16 and to ground 15. The communication device

  35 secures the rear wiper

  and at least the intermittent operation of the

  soot-ice before 10. The line that connects the first

  switch contact 17 of the wiper switch

  front window 18 at the switchgear 35 applies

  the input signal, described in the switching device

  35 and the output signal for the intermittent operation of the windscreen wiper 10. The switching device 35 contains, for example, the switching elements shown in FIG. 1 with the exception of the additional devices 28. The device of FIG.

  switching has the advantage of offering a structure

  compact shape. According to FIG. 2, the

  Figure 1 at the level of the communication device

  mutation 35 by the combination of the function control

  intermittent operation of the front wiper 21 and

  intermittent operation control of the

  rear window soot 29 in a single function control

intermittent

  The diagram shown in FIG.

  can be realized in the switching device

in the form of a program.

Claims (4)

  1) A method of controlling a rear window wiper equipping a motor vehicle, comprising at least one front wiper and a reverse detector, characterized in that the rear window wiper is connected (30). ) when the front wiper   (10) is implemented and that the vehicle is in back.   2) The process according to claim 1, wherein   characterized in that the rear wiper (30) is   implemented for periodic operation.   3) Process according to claim 1 or 2,   characterized in that an electrically controlled switch   The trolley (23, 24) connects the reverse sensor (27) and the rear wiper (30) according to the operation of the front wiper (10). Device for carrying out the method according to claim 2, characterized by a   intermittent operation of the wiper blade   rear window (29), clean, associated with the windscreen wiper rear (30).    Device for carrying out the method according to claim 3, characterized in that the link between the reverse detector (27) and the rear wiper (30) comprises a diode   (34) for decoupling the rear wiper (30) from   very installations (28) connected to the walk detector rear (27).   6) Device according to any one of   4 or 5, characterized by a command of   periodic operation (21) for the front wiper (10) and a control (22, 23, 24, 25, 26, 29) for the rear wiper (30) joined together in a   same switching device (35).