JP2008137605A - Vehicular wiper washer control device and vehicular wiper washer device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular wiper washer control device which reduces portions where lack of washing fluid occurs and sufficiently eliminates dirt on a wiping surface using the washing fluid. <P>SOLUTION: Based on the ON-operation of a washer switch, base injection of the washing fluid W from a washer nozzle provided in a wiper 51 is performed in a lower inverting position A1 of the wiper 51. In cooperation with the base injection, reciprocating wiping operation of the wiper 51 is performed several times and additional injection of the washing fluid W is performed when the wiper 51 is being moved from the lower inverting position A1 to an upper inverting position A2. In this case, when high-speed traveling is determined, the supply pressure of the washing fluid W to the washer nozzle during the additional injection is changed to second pressure P2 higher than first pressure P1, and the injection pattern of the additional injection of the washing fluid W from the washer nozzle is switched to a pattern in which injection is performed close to a base end of a wiper blade 51b. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a wiper washer control device for a vehicle that controls the supply of cleaning liquid to a wiping surface of a windshield (windshield glass) of a vehicle that receives a traveling wind in conjunction with wiping with a wiper on the wiping surface, and control thereof. The present invention relates to a vehicle wiper washer device including the device.

  2. Description of the Related Art A vehicle wiper washer control device is known in which a wiper device and a washer device are operated in conjunction with each other based on an ON operation of a washer switch (see, for example, Patent Document 1). In the wiper washer control device, when the washer switch is turned on, the cleaning liquid is jetted and supplied from the washer device to the wiping surface, and at the same time, the wiper device starts wiping operation of the wiper.

There is also known a washer device in which a washer nozzle for supplying and supplying a cleaning liquid toward the wiping surface of the windshield is directly provided on a wiper component such as a wiper arm or wiper blade. In such a washer device, since the washer nozzle is provided in the wiper, the cleaning liquid can be sprayed from a very short distance to the wiping surface, and therefore, it is affected by the traveling wind until the cleaning liquid reaches the wiping surface. There is an advantage that the cleaning liquid can be supplied to a desired place.
JP-A-5-185908

  By the way, when the washer nozzle is linked to the washer device provided on the wiper arm or the wiper blade as in Patent Document 1, the longitudinal direction of the wiper blade is parallel to the vehicle width direction of the lower end of the windshield (in the running wind). On the other hand, the cleaning liquid is supplied to the wiping surface at a lower inversion position that is orthogonal to the wiping surface, and is spread to the traveling direction side of the wiper that performs the wiping operation.

  However, when the wiper arm rotates from the lower reverse position to the upper reverse position and the longitudinal direction of the wiper blade is perpendicular to the vehicle width direction (parallel to the traveling wind), the cleaning liquid spread on the wiper blade However, in addition to the centrifugal force generated by the rotation of the arm, the wind may be influenced by the traveling wind and rise to the upper end side of the windshield. This was particularly noticeable during high-speed driving where the driving wind was strong. Then, the cleaning liquid is displaced toward the leading end side of the blade along the wiper blade, and further, the cleaning liquid flows out from the leading end portion of the wiper blade toward the upper end portion of the windshield, so that the cleaning liquid is wasted. .

  As a result, there is a shortage of cleaning liquid on the base end side of the wiper blade, and such a situation is likely to occur during high-speed driving where the driving wind is strong as described above, and dirt on the wiping surface using the cleaning liquid is removed on the base end side of the wiper blade. There was a possibility that it could not be enough.

  The present invention has been made to solve the above-described problems, and its purpose is to spray and supply cleaning liquid from a washer nozzle provided on the wiper to the wiping surface of the windshield and wipe the wiper in conjunction with the spraying. A vehicle wiper washer control device that performs an operation, and a vehicle wiper washer device that includes the control device, wherein the location where the cleaning liquid is insufficient is reduced, and the wiping surface using the cleaning liquid is sufficiently cleaned. An object of the present invention is to provide a vehicle wiper washer control device and a vehicle wiper washer device.

  In order to solve the above-mentioned problem, the invention according to claim 1 is based on an operation of turning on a washer switch from a washer nozzle provided on a wiper for wiping a wiping surface of a windshield of a vehicle and spraying cleaning liquid onto the wiping surface. A vehicle wiper washer control device that controls a washer motor to inject the cleaning liquid and controls the wiper motor to reciprocate the wiper between the first and second reversal positions in conjunction with the injection of the cleaning liquid. The washer nozzle has a plurality of injection holes for spraying the cleaning liquid dispersedly on the base end side and the front end side of the wiper blade constituting the wiper, and the cleaning liquid is supplied at a first pressure. And a second spray different from the first pressure while spraying dispersedly on the proximal end side and the distal end side of the wiper blade. A valve structure that switches the injection mode toward the base end of the wiper blade when supplied by force, and from the first reverse position where the wiper starts wiping based on an ON operation of the washer switch In conjunction with the jetting of the cleaning liquid on the way to the second reversal position, the wiper performs at least one reciprocating wiping operation in conjunction with the jetting, and the vehicle speed exceeds a predetermined speed. Vehicle speed determining means for determining whether or not the vehicle speed is greater than or equal to a predetermined speed by the vehicle speed determining means, the supply pressure of the cleaning liquid to the washer nozzle at the time of injection is a first pressure The washer motor is controlled to change the pressure from the washer nozzle to the second pressure, and the cleaning liquid is sprayed from the washer nozzle toward the base end of the wiper blade. As its gist that a jetting mode changing means for switching the.

  In this invention, the interlock control means performs at least one injection of the cleaning liquid on the way from the first reversal position where the wiper starts wiping to the second reversal position, based on the on operation of the washer switch. The wiper is caused to perform at least one reciprocating wiping operation in conjunction with the injection. The injection mode changing means changes at least the supply pressure of the cleaning liquid to the washer nozzle at the time of additional injection from the first pressure to the second pressure when the vehicle speed determining means determines that the vehicle speed is equal to or higher than the predetermined speed. The washer motor is controlled accordingly. This washer nozzle has a plurality of injection holes that are dispersed on the base end side and the tip end side of the wiper blade so that the cleaning liquid can be sprayed. When the cleaning liquid is supplied at the first pressure, the spray is generated by the dispersion. On the other hand, when the cleaning liquid is supplied at the second pressure, a valve structure is provided that switches the injection mode toward the base end of the wiper blade. Accordingly, the supply of the cleaning liquid to the washer nozzle is changed from the first pressure to the second pressure based on the determination that the vehicle speed is equal to or higher than the predetermined speed, so that the injection of the cleaning liquid from the washer nozzle is based on the wiper blade. The injection mode is switched to the end. Therefore, when the vehicle speed is higher than a predetermined speed, there is a concern that the sprayed cleaning liquid may run short of the cleaning liquid at the proximal end side toward the distal end side of the wiper blade due to strong traveling wind during wiper wipe. However, the jetting of the cleaning liquid during the high-speed running is performed while being biased toward the base end of the wiper blade. For example, the jet pressure in the other direction is increased by stopping the jetting to the tip side at least, so the high-speed running In some cases, the cleaning liquid that tends to be insufficient on the base end side of the wiper blade is suitably supplied, and the location where the cleaning liquid is insufficient in the wiping range of the wiper blade can be reduced. Therefore, it is possible to sufficiently clean the wiping surface using the cleaning liquid.

  According to a second aspect of the present invention, in the vehicle wiper washer control device according to the first aspect, the interlock control unit is configured to perform the first reversal in which the wiper starts wiping based on an ON operation of the washer switch. The base of the cleaning liquid is injected at the position, and the wiper is caused to perform at least one reciprocating wiping operation in conjunction with the injection, and the wiper is at least once in the middle from the first reverse position to the second reverse position. The additional injection of the cleaning liquid is performed during the wiping operation of the wiper, and the injection mode changing means changes at least the injection mode at the time of the additional injection according to the vehicle speed.

  In the present invention, the interlock control means performs the base injection at the first reversal position before the wiper operation and the additional injection during the wiper wiping operation, and the injection mode changing means at least the injection mode at the time of the additional injection Is changed according to the vehicle speed. In other words, the additional injection performed during the wiper wiping operation is performed in a state where the longitudinal direction of the wiper blade is orthogonal to the vehicle width direction, that is, parallel to the traveling wind and close to a position where the cleaning liquid is greatly affected by the traveling wind. Therefore, during the additional injection during high speed running, the jet is biased toward the base end of the wiper blade, and for example, the injection pressure in other directions can be increased by stopping the injection toward the tip side at least. At the same time, it is possible to prevent the supplied cleaning liquid from flowing out of the wiping range of the wiper blade.

  According to a third aspect of the present invention, in the vehicle wiper washer control device according to the second aspect of the invention, the vehicle speed determination means performs a stop, a low speed traveling less than the predetermined speed, and a high speed traveling above the predetermined speed. The interlock control means performs only the base injection when it is determined that the vehicle is stopped, and cooperates with the injection mode change means when it is determined that the vehicle is traveling at a low speed. The base injection by the first pressure and the additional injection are performed, and the base injection by the first pressure cooperates with the injection mode changing means when it is determined that the vehicle is traveling at a high speed. And performing the additional injection by the second pressure.

  In this invention, the interlock control means performs only the base injection when it is determined that the vehicle is stopped, and the base injection by the first pressure in cooperation with the injection mode changing means when it is determined that the vehicle is traveling at a low speed. The additional injection is performed, that is, the base injection and the additional injection that are dispersed on the proximal end side and the distal end side of the wiper blade are performed. When it is determined that the vehicle is traveling at a high speed, the interlock control unit cooperates with the injection mode changing unit to perform base injection by the first pressure, that is, base injection to be dispersed on the base end side and the tip end side of the wiper blade, The additional injection by the pressure of the pressure, that is, the additional injection biased toward the base end of the wiper blade is performed. That is, since the traveling wind is not received when the vehicle is stopped, the cleaning liquid is spread over the entire wiping area of the wiper blade only by the base injection at the first reverse position before the wiper operation. In addition to the base injection, when running at low speeds, it receives the running wind, and by performing additional injection that disperses in the same way as the base injection, the running wind is reduced when the cleaning liquid at the base injection is spread. In response to this, the cleaning liquid which is out of the wiping range on the distal end side of the wiper blade and tends to be insufficient on the proximal end side is compensated. In addition, since the driving wind is stronger and the tendency becomes more noticeable at high speeds, the base end side of the wiper blade is further insufficient by biasing the additional injection to be performed in addition to the base injection toward the base end side of the wiper blade. Compensation of the cleaning liquid that tends to occur is made accurately. As described above, by appropriately changing the additional injection according to the state of the traveling wind that changes according to the vehicle speed, it is possible to reduce the location where the cleaning liquid is insufficient while reducing waste of the cleaning liquid.

  The invention according to claim 4 is the gist of the vehicle wiper washer control device according to claim 2 or 3, wherein the interlock control means continuously performs the base injection and the additional injection. To do.

  In this invention, since the interlock control means continues the base injection at the first reversal position of the wiper and the additional injection performed together with the wiper wiping operation, it is possible to prevent the injection control from becoming complicated.

  According to a fifth aspect of the present invention, in the vehicle wiper washer control device according to any one of the first to fourth aspects, the interlock control means is configured such that the longitudinal direction of the wiper blade is perpendicular to the vehicle width direction. The gist of the invention is that the injection is not performed between the positions a predetermined angle before.

  In the present invention, the interlock control means does not perform injection between the position where the longitudinal direction of the wiper blade is perpendicular to the vehicle width direction and a position a predetermined angle before. In other words, in the region from the position where the longitudinal direction of the wiper blade is orthogonal to the vehicle width direction, that is, the position parallel to the traveling wind to the position before a predetermined angle, the cleaning liquid spread by the wiper is greatly affected by the traveling wind. Since it is an area, by not performing injection in that area, it is possible to prevent the cleaning liquid from flowing out from the front end side of the wiper blade toward the upper end portion of the windshield, and to reduce waste of the cleaning liquid.

  A sixth aspect of the present invention is the vehicle wiper washer control device according to any one of the first to fifth aspects, wherein the interlock control means performs the ejection of the cleaning liquid after terminating the ejection of the cleaning liquid. The gist is to perform one or more reciprocating wiping operations of the wiper without accompanying.

  In the present invention, the interlock control means causes the wiper to perform one or more reciprocating wiping operations without spraying the cleaning liquid after the spraying of the cleaning liquid is finished. Thereby, generation | occurrence | production of the wiping residue of the washing | cleaning liquid on a wiping surface or the washing | cleaning liquid of a washing | cleaning liquid immediately after wiping etc. is suppressed by the wiping operation | movement of the wiper of 1 or more times not accompanied by the injection of a washing | cleaning liquid.

  According to a seventh aspect of the present invention, in the vehicle wiper washer control device according to any one of the first to sixth aspects, the interlock control means is such that the washer switch is continuously turned on for a predetermined time or more. The gist is to continue the spray of the cleaning liquid during the ON operation period.

  In the present invention, when the washer switch is continuously turned on for a predetermined time or longer, the interlock control means continues to inject the cleaning liquid during the on-operation period. In other words, the washer switch is turned on for a long time when the operator needs more cleaning liquid, such as when dirt that does not easily fall off is attached to the wiping surface. Therefore, when the washer switch is turned on for a longer time than the predetermined time, the ejection of the cleaning liquid is continued during the on-operation period, so that the ejection control matches the operator's intention.

  According to an eighth aspect of the present invention, there is provided a wiper provided with a washer nozzle for wiping a wiping surface of a windshield of a vehicle and supplying a cleaning liquid to the wiping surface, and the cleaning liquid from the washer nozzle provided on the wiper. A washer motor that is driven to spray the wiper, a wiper motor that is driven to reciprocate the wiper between the first and second reversal positions, and the washer that sprays the cleaning liquid based on an ON operation of a washer switch. A wiper washer device for a vehicle comprising a control device for controlling the motor and controlling the wiper motor so as to cause the wiper to perform a reciprocating wiping operation in conjunction with the ejection of the cleaning liquid, wherein the washer nozzle The cleaning is performed by dispersing it on the base end side and the tip end side of the wiper blade constituting When the cleaning liquid is supplied at a first pressure, the cleaning liquid is dispersed and sprayed to the proximal end side and the distal end side of the wiper blade, while the cleaning liquid is applied to the first pressure. When supplied with a different second pressure, the control device is provided with a valve structure that switches an injection mode closer to the base end of the wiper blade, and the control device controls the wiper based on an ON operation of the washer switch. In conjunction with performing at least one injection of the cleaning liquid on the way from the first reversal position to start wiping to the second reversal position, and performing at least one reciprocating wiping operation in conjunction with the ejection When the control means, vehicle speed determination means for determining whether the vehicle speed is equal to or higher than a predetermined speed, and when the vehicle speed determination means determines that the vehicle speed is equal to or higher than the predetermined speed, The washer motor is controlled to change the supply pressure of the cleaning liquid to the washer nozzle from the first pressure to the second pressure, and the cleaning liquid is injected from the washer nozzle into an injection mode near the base end of the wiper blade. The gist of the invention is that it includes an injection mode changing means for switching.

  According to the present invention, a vehicle wiper washer device having the same effect as that of the first aspect can be provided.

  Therefore, according to the above-described invention, the location where the cleaning liquid is insufficient can be reduced, the cleaning liquid can be effectively supplied without waste, and the wiping surface can be sufficiently cleaned, and the vehicle wiper washer control device A wiper washer device for a vehicle provided with a control device can be provided.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
FIG. 1 shows a vehicle wiper washer device 10 of the present embodiment. The wiper washer device 10 according to the present embodiment wipes the wiper surface 50a of the windshield 50 of the vehicle by reciprocating the wiper 51, and wipes the wiper 51 in conjunction with the supply of the cleaning liquid W to the wiping surface 50a. It has a function to wipe off. The wiper washer device 10 according to the present embodiment includes a wiper 51 for wiping the wiping surface 50a, a wiper motor 11 for reciprocating the wiper 51, a wiper drive control device 12 for driving and controlling the wiper motor 11, and a washer. A washer motor 13 attached to the tank 55 for pumping up the cleaning liquid W in the tank 55 and a washer drive control device 14 for driving and controlling the washer motor 13 are provided.

  The wiper 51 of the present embodiment includes a wiper arm 51a whose base end is fixed to a pivot shaft 52 rotated by the wiper motor 11, and a wiper blade 51b attached to the distal end of the wiper arm 51a. A predetermined angle range of the wiping surface 50a of the windshield 50 is wiped by turning the pivot shaft 52 by a predetermined angle by driving the wiper motor 11. In the present embodiment, the lower inversion position A1 in which the longitudinal direction of the wiper blade 51b is substantially parallel to the vehicle width direction of the lower end of the windshield 50 (substantially orthogonal to the traveling wind) is the position where wiping is started. The wiping range of the wiper 51 (wiper blade 51b) is from the lower inversion position A1 to the upper inversion position A2 that is substantially orthogonal to the vehicle width direction (substantially parallel to the traveling wind). The lower reversal position A1 of the wiper 51 also serves as a stop position.

  In the wiper blade 51b of the present embodiment, as shown in FIG. 3, the blade rubber 51x is held by a lever assembly (not shown) that is attached to the tip of the wiper arm 51a and in which a plurality of levers are connected in a tournament shape. The lever assembly is covered with a cover member 51y. Further, the cover member 51y of the wiper blade 51b of the present embodiment is equipped with a washer nozzle 60 as shown in FIG. 4A for injecting and supplying the cleaning liquid W toward the wiping surface 50a.

  The washer nozzle 60 is provided so that the three injection holes 61a to 61c for injecting the cleaning liquid W are arranged in the longitudinal direction of the nozzle 60, that is, the longitudinal direction of the wiper blade 51b at the time of attachment. The injection direction of the injection hole 61b located in the middle is directed right below, and the injection direction of the injection hole 61a located on the base end side is directed in a direction inclined by a predetermined angle toward the base end side of the wiper blade 51b, and is positioned on the distal end side. The injection direction of the injection hole 61c to be directed is directed in a direction inclined by a predetermined angle toward the tip side of the wiper blade 51b. A hose coupling portion 62 is provided at the base end portion of the washer nozzle 60, and the distal end of a washer hose 56 inserted into the inside through an insertion hole (not shown) of the cover member 51y is connected to the coupling portion 62.

  Inside the washer nozzle 60, a communication passage that connects the hose connecting portion 62 and the injection holes 61 a to 61 c, specifically, an introduction passage 63 a having a circular cross section in order from the hose connecting portion 62 side, an accommodation passage 63 b, and a discharge A passage 63 c is formed linearly along the longitudinal direction of the washer nozzle 60. Out of each of the injection holes 61a to 61c, the injection hole 61c on the distal end side and the intermediate injection hole 61b communicate with the discharge passage 63c, and the injection hole 61a on the proximal end side communicates with an intermediate portion in the longitudinal direction of the accommodation passage 63b. ing. The accommodating passage 63b has a larger inner diameter than the introduction passage 63a and the discharge passage 63c, and a valve body 64 and a spring 65 are accommodated in the accommodating passage 63b. The valve body 64 is a disk-shaped member that can close the opening on the introduction passage 63a side of the accommodation passage 63b, that is, the opening on the introduction port 63x and the discharge passage 63c, ie, the discharge port 63y, and has a diameter smaller than the inner diameter of the accommodation passage 63b. It is formed by. The spring 65 has a coil shape and is disposed on the discharge passage 63c side of the valve body 64, and urges the valve body 64 so that the valve body 64 closes the introduction port 63x. The washer hose 56 connected to the washer nozzle 60 is routed along the wiper arm 51a as shown in FIG. 3, and the base end of the hose 56 is provided alongside the washer tank 55 as shown in FIG. Connected to the washer motor 13.

  When the washer motor 13 is stopped, the washer nozzle 60 does not supply the cleaning liquid W into the introduction passage 63a, and the valve body 64 that does not receive the pressure of the cleaning liquid W closes the inlet 63x with the spring 65. ing. On the other hand, when the washer motor 13 is driven, the cleaning liquid W pumped up from the washer tank 55 is introduced into the introduction passage 63 a of the washer nozzle 60 through the washer hose 56, and the valve body 64 is spring 65 by the supply pressure of the cleaning liquid W. It moves in the direction away from the introduction port 63x against the urging force. As a result, the cleaning liquid W flows into the storage passage 63b and the discharge passage 63c, and is ejected from the ejection holes 61a to 61c to the wiping surface 50a at a close distance.

  In this case, in this embodiment, the rotation speed of the washer motor 13 is controlled by PWM control so that the cleaning liquid W is pumped at the first pressure P1 and the second pressure P2 higher than the pressure P1. (See FIG. 5). The first pressure P1 is set to a pressure (normal pressure) at which the valve body 64 stops in the washer nozzle 60 at an intermediate position between the urging force of the spring 65 and the accommodating passage 63b, and the second pressure P2 It is set to a pressure (higher than the first pressure P1) at which the body 64 stops at a position where it closes the discharge port 63y against the urging force of the spring 65. That is, when the cleaning liquid W is pumped at a normal pressure that is the first pressure P1, as shown in FIG. 4B, the cleaning liquid W is sprayed from all the spray holes 61a to 61c in the washer nozzle 60, that is, a wiper blade. It is dispersed and ejected in the longitudinal direction of 51b. On the other hand, when the cleaning liquid W is pumped at a high pressure that becomes the second pressure P2, as shown in FIG. 4C, the cleaning liquid W is jetted only from the jet hole 61a located on the base end side, as shown in FIG. That is, the spray is concentrated on a predetermined area near the base end of the wiper blade 51b. The drive mode of the washer motor 13, that is, the spray mode of the cleaning liquid W is different according to the vehicle speed in the present embodiment. Specifically, the spray period is set under three vehicle speed conditions of stopping, low speed travel, and high speed travel. It is carried out in three modes with different lengths and supply pressures. This will be described in detail later.

  In the wiper drive control device 12, the power supply terminal 12 a of the device 12 is connected to the plus terminal of the in-vehicle battery 23 via the fuse 21 and the ignition switch 22. Incidentally, the minus terminal of the vehicle-mounted battery 23 is connected to the vehicle body grounding part (GND), and the GND terminal 12b of the wiper drive control device 12 is also connected to GND. When the ignition switch 22 is in the ON state, drive power is supplied from the vehicle-mounted battery 23 to the wiper drive control device 12.

  A wiper switch (wiper SW) 25 provided at the vehicle driver's seat is connected to the wiper drive control device 12. The wiper switch 25 is configured to be switchable between three operation positions: an OFF position, an INT (intermittent operation) position, and an ON (continuous operation) position. When the wiper switch 25 is switched to the INT position, the wiper switch input terminal 12c of the wiper drive control device 12 is set to the GND level (L level), and when the wiper switch 25 is switched to the ON position, the wiper switch input terminal 12d of the wiper drive control device 12 is set. Is set to the GND level (L level). On the other hand, when the wiper switch 25 is switched to the OFF position, the wiper switch input terminals 12c and 12d of the wiper drive control device 12 are disconnected from the GND and set to the H level. The wiper drive control device 12 determines whether the wiper switch 25 is switched to the OFF position, the INT position, or the ON position based on the potentials of the wiper switch input terminals 12c and 12d.

  A wiper motor 11 is connected to the wiper drive control device 12. The wiper motor 11 includes a wiper motor main body 15 in which a DC drive motor having a pair of brushes 15a and 15b as a drive source, a speed reduction mechanism for reducing the rotation of the motor, and a wiper fixed position stop switch 16 are assembled. .

  In the wiper motor main body 15, one brush 15 a is connected to the power supply terminal 12 e of the wiper drive control device 12 via the noise prevention choke coil 17, and the other brush 15 b is connected to GND via the overheat protection element (breaker) 18. It is connected to the terminal 12f for use. When the wiper motor body 15 is driven, drive power is supplied from the power supply terminal 12 e of the wiper drive control device 12. A link mechanism 53 for reciprocatingly rotating the pivot shaft 52 is connected to the output shaft of the wiper motor main body 15. Incidentally, the link mechanism 53 converts the rotational motion of the wiper motor main body 15 into the reciprocating rotational motion of the pivot shaft 52, that is, the reciprocating swing motion of the wiper 51 fixed to the pivot shaft 52.

  The wiper fixed position stop switch 16 is integrally assembled with the wiper motor main body 15 so that the movable contact 16a rotates in conjunction with the output shaft of the wiper motor main body 15. When the wiper 51 (wiper blade 51b) is in the lower inversion position A1, the wiper fixed position stop switch 16 is connected to the contact 16a and the contact 16c (off state), and the wiper 51 is operated to a position other than the lower inversion position A1. When the output shaft rotates to make it possible, the contact 16a and the contact 16b are connected (ON state). That is, the contact 16b of the wiper fixed position stop switch 16 is connected to the power supply terminal 12g of the wiper drive control device 12, the contact 16c is connected to the GND terminal 12f of the wiper drive control device 12, and The contact 16 a is connected to the stop switch input terminal 12 h of the wiper drive control device 12. Accordingly, the wiper fixed position stop switch 16 sets the stop switch input terminal 12h to the GND level (L level) when the wiper 51 is at the lower inversion position A1, and the wiper 51 is moved to a position other than the lower inversion position A1 by wiping. The stop switch input terminal 12h is set to H level. Then, the wiper drive control device 12 determines whether the wiper 51 is at the lower inversion position A1 or other position based on the potential of the stop switch input terminal 12h.

  When the wiper drive control device 12 detects that the wiper switch 25 is operated and switched to the INT position or the ON position, the wiper drive control device 12 supplies drive power to the wiper motor 11 (wiper motor main body 15) to rotate the motor 11. Drive. Thereby, the wiper 51 performs wiping operation. At this time, when the wiper 51 leaves the lower inversion position A1, the wiper fixed position stop switch 16 of the wiper motor 11 is switched from OFF to ON. When the wiper fixed position stop switch 16 is turned on, the wiper drive control device 12 causes the wiper 51 to move to the lower inversion position A1 by the reciprocating wiping operation even if the wiper switch 25 is switched to the OFF position while the wiper 51 is wiping operation. Until the wiper fixed position stop switch 16 is turned off, the drive power supply to the wiper motor 11 is continued.

  In the washer drive control device 14, the device 14 is connected to the plus terminal of the in-vehicle battery 23 via the fuse 21 and the ignition switch 22, and when the ignition switch 22 is turned on, the device 14 Driving power is supplied from the in-vehicle battery 23. Further, a washer switch (washer SW) 26 provided at the vehicle driver's seat is connected to the washer drive control device 14, and a drive power supply voltage supplied to the device 14 is applied. The washer switch 26 outputs an on / off signal to the washer drive control device 14 using the applied drive power supply voltage.

  Specifically, as shown in FIG. 2, the washer drive control device 14 includes a wiper operation determination unit 14a, a washer operation command unit 14b, a washer drive unit 14c, and a vehicle speed determination unit 14d. The wiper operation determination unit 14a is connected to the wiper switch 25, determines the operation state of the wiper 51 by the switch 25, and outputs the determination result to the washer operation command unit 14b. The washer operation command unit 14b is connected to the washer switch 26 to determine the on / off state of the switch 26 and outputs the determination result to the washer operation command unit 14b.

  The washer operation command unit 14 b supplies driving power to the washer motor 13 connected to the washer driving unit 14 c through the driving unit 14 c based on the turning on of the washer switch 26, and pumps the cleaning liquid W stored in the washer tank 55. The wiper 51 is operated so as to be pumped toward the washer nozzle 60 provided in the wiper 51. The rotation speed of the washer motor 13 is controlled by PWM control by the washer operation command unit 14b, and the supply pressure of the cleaning liquid W is controlled to be changeable to the first pressure P1 or the second pressure P2. The voltage value of the drive power supplied to the washer motor 13 is also applied to the monitor terminal 12i of the wiper drive control device 12 (see FIG. 1), and the wiper drive control device 12 uses the voltage of the drive power supply. The value is being monitored.

  When the washer switch 26 is turned on when the wiper 51 is in operation as determined by the wiper operation determination unit 14a, the washer operation command unit 14b passes through the washer drive unit 14c only while the switch 26 is on. The washer motor 13 is operated. That is, while the wiper 51 is in operation, the cleaning liquid W is jetted and supplied to the wiping surface 50a only while the washer switch 26 is turned on.

  On the other hand, when the washer switch 26 is turned on when the wiper 51 is not in operation as determined by the wiper operation determination unit 14a, the washer operation command unit 14b operates the washer motor 13 and the wiper motor 11 at a predetermined timing. The supply of the cleaning liquid W and the wiping by the wiper 51 are linked. At this time, if the washer switch 26 is continuously turned on for a predetermined time or longer, the cleaning liquid W is continuously ejected during the on-operation period. However, when the washer switch 26 does not satisfy the predetermined time, it is set in advance. The cleaning liquid W is injected at the injection amount and the injection timing. In the present embodiment, the injection mode in this case is varied depending on the vehicle speed.

  Here, the determination result from the vehicle speed determination unit 14d is input to the washer operation command unit 14b. The vehicle speed determination unit 14d receives a vehicle speed signal from a vehicle speed sensor (not shown) mounted on the vehicle, and determines whether the vehicle is stopped, traveling at a low speed, or traveling at a high speed. In the present embodiment, the threshold value for the determination of low speed driving and high speed driving is set to 80 [km / h].

  In addition, a rotation detection signal from a rotation detection sensor provided in the DC drive motor constituting the wiper motor main body 15 is input to the washer operation command unit 14b. This rotation detection signal is a signal synchronized with the rotation of the rotating shaft of the DC drive motor. The washer operation command unit 14b detects the rotation position of the rotating shaft of the DC drive motor, that is, the wiping position of the wiper 51 operated by the wiper motor 11 based on the rotation detection signal. In this case, the wiper 51 (wiper blade 51b) includes the lower inversion position A1 and the upper inversion position A2, and further includes the first and second injection stop positions A3 and A4 set in the present embodiment as shown in FIG. The wiping position of the wiper 51 is detected. Incidentally, the first injection stop position A3 is set to a predetermined position slightly closer to the lower inversion position A1 from the intermediate position between the lower inversion position A1 and the upper inversion position A2, and the second injection stop position A4 is set to the lower inversion position A1. It is set to a predetermined position slightly closer to the upper reversing position A2 from the intermediate position with respect to the upper reversing position A2, that is, 30 ° before the position orthogonal to the vehicle width direction in the present embodiment.

  When the vehicle speed is 0 [km / h] and the wiper 51 is not operated and the washer switch 26 is turned on, the washer operation command unit 14b first supplies a predetermined amount of the cleaning liquid W (in this case, the wiper 51). The washer motor 13 is operated for a predetermined time through the washer driving portion 14c so as to perform base injection on the wiping surface 50a by a suitable amount set in advance by measurement, calculation or the like so as to spread over the entire wiping range. At this time, the washer motor 13 is driven so that the cleaning liquid W is pumped to the washer nozzle 60 at the first pressure P1 (normal pressure), and the washer nozzle 60 is supplied with the cleaning liquid W by the first pressure P1. The cleaning liquid W is dispersed and sprayed from the spray holes 61a to 61c in the longitudinal direction of the wiper blade 51b. The washer operation command unit 14b keeps the operation of the wiper 51 stopped until a predetermined amount of the cleaning liquid W is ejected.

  After operating the washer motor 13 for a predetermined time to perform base injection of a predetermined amount of the cleaning liquid W, the washer operation command unit 14b outputs to the wiper drive control device 12 that the base injection of the predetermined amount of the cleaning liquid W has been completed. As a result, the wiper drive control device 12 operates the wiper motor 11 to start the wiping operation of the wiper 51. With the wiping operation of the wiper 51, the cleaning liquid W is spread in the wiping direction on the wiping surface 50a. And the wiper drive control apparatus 12 performs the wiping operation | movement of the wiper 51 several times (for example, 3 times). Incidentally, the spray of the cleaning liquid W is performed only for the first time of the wiping operation of the wiper 51 and is not performed for the second and subsequent wiping operations.

  Next, when the wiper 51 is inactive and the washer switch 26 is turned on during low speed traveling at a vehicle speed of less than 80 [km / h], the washer operation command unit 14b should perform base injection before the wiper 51 is operated. The same amount of cleaning liquid W as that when the vehicle is stopped is sprayed in the same manner. After spraying a predetermined amount of the cleaning liquid W, the wiper drive control device 12 operates the wiper motor 11 to start the wiping operation of the wiper 51. At this time, the washer operation command unit 14b continues to drive the washer motor 13 to continue supplying the cleaning liquid W to the washer nozzle 60 with the first pressure P1, and additional injection of the cleaning liquid W is performed. Then, with the wiping operation of the wiper 51, the cleaning liquid W is spread in the wiping direction on the wiping surface 50a.

  When the wiped wiper 51 reaches the first injection stop position A3, the washer operation command unit 14b detects the injection stop position A3, and based on the detection, the washer motor 13 Stop driving. The injection amount of the cleaning liquid W so far is about 1.5 times the injection amount of the cleaning liquid W when the vehicle is stopped. Incidentally, even during this low speed traveling, the wiping operation of the wiper 51 is performed several times (for example, three times). Further, the spray of the cleaning liquid W is performed only for the first time of the wiping operation of the wiper 51, and is not performed during the second and subsequent wiping operations.

  When the vehicle speed is 80 [km / h] or higher and the wiper 51 is not operated and the washer switch 26 is turned on, the washer operation command unit 14b performs the base injection before the wiper 51 is operated. The same amount of cleaning liquid W is sprayed in the same manner as when the vehicle is stopped and when the vehicle is traveling at a low speed. After spraying a predetermined amount of the cleaning liquid W, the wiper drive control device 12 operates the wiper motor 11 to start the wiping operation of the wiper 51. At this time, the washer operation command unit 14b continues to drive the washer motor 13, but is switched to supply the cleaning liquid W to the washer nozzle 60 by the second pressure P2, unlike the low-speed traveling. Accordingly, the washer nozzle 60 concentrates and sprays the cleaning liquid W from only the base end side injection hole 61a toward a predetermined region near the base end of the wiper blade 51b by supplying the cleaning liquid W with the second pressure P2. Additional injection in which the injection amount from the hole 61a is increased is performed. Then, with the wiping operation of the wiper 51, the cleaning liquid W is spread in the wiping direction on the wiping surface 50a.

  When the wiped wiper 51 reaches the second injection stop position A4, the washer operation command unit 14b detects the injection stop position A4 and, based on the detection, the washer motor 13 to stop the injection of the cleaning liquid W. Stop driving. The injection amount of the cleaning liquid W so far is the same as the injection amount of the cleaning liquid W during the low-speed traveling, and is about 1.5 times the injection amount of the cleaning liquid W when the vehicle is stopped. That is, the amount of the cleaning liquid W injected by the second pressure P2 per unit time (the amount of injection from the injection holes 61a only by the second pressure P2) is the amount of the cleaning liquid W injected by the first pressure P1 (the first amount). The position at which the injection is stopped is slightly delayed from A3 to A4 by an amount slightly smaller than that of the injection holes 61a to 61c by the pressure P1. Even during this high speed traveling, the wiper 51 is wiped several times (for example, three times), and the cleaning liquid W is sprayed only for the first time of the wiper 51, and the second and subsequent wipes are performed. Not implemented.

  That is, when the vehicle is traveling at a low speed, the wiper 51 (wiper blade 51b) travel wind is received unlike when the vehicle is stopped. Therefore, not only the base injection performed before the wiper 51 is wiped but also the wiper 51 is started. Even after the injection, the cleaning liquid W is continuously injected (dispersed injection by the three injection holes 61a to 61c), and the injection amount is increased as compared to when the vehicle is stopped. As a result, as the wiper 51 approaches from the lower inversion position A1 to the upper inversion position A2, the cleaning air W is slightly moved to the upper end side of the windshield 50 by the traveling wind, and the cleaning liquid W is shifted to the front end side of the wiper blade 51b. However, the increase in the injection amount prevents the cleaning liquid W from becoming insufficient on the proximal end side of the wiper blade 51b. Thereby, the location where the cleaning liquid W is insufficient is reduced, and the wiping surface 50a using the cleaning liquid W is sufficiently cleaned.

  In addition, since the traveling wind becomes stronger during high speed traveling, as the wiper 51 approaches the upper reversing position A2 from the lower reversing position A1, the deviation of the cleaning liquid W toward the tip of the wiper blade 51b is smaller than that during low speed traveling. Therefore, after the wiping operation of the wiper 51 is started, concentrated injection to the base end side of the wiper blade 51b is performed. That is, in anticipation that a large amount of cleaning liquid W moves to the distal end side of the wiper blade 51b in response to strong traveling wind during high-speed traveling, the cleaning liquid W is intensively sprayed to the proximal end side of the wiper blade 51b in advance. Further, it is possible to prevent the cleaning liquid W from becoming insufficient on the base end side of the wiper blade 51b. As a result, the portion where the cleaning liquid W is insufficient even during high-speed traveling is reduced, and the wiping surface 50a using the cleaning liquid W is sufficiently removed.

Next, characteristic actions and effects of the present embodiment will be described.
(1) In the present embodiment, based on the ON operation of the washer switch 26, the base 51 of the cleaning liquid W is injected at the lower inversion position A1 (first inversion position) of the wiper 51, and the wiper 51 is interlocked with the injection. The reciprocating wiping operation is performed several times (for example, three times), and the cleaning liquid W is additionally injected while the wiper 51 is moving from the lower inversion position A1 to the upper inversion position A2 (second inversion position). In this case, when it is determined that the vehicle speed is higher than the predetermined speed (80 [km / h] in this embodiment), the supply pressure of the cleaning liquid W to the washer nozzle 60 during the additional injection is determined. The washer motor 13 is controlled to change to the second pressure P2 higher than the first pressure P1. The washer nozzle 60 has three injection holes 61a to 61c that are dispersed on the proximal end side and the distal end side of the wiper blade 51b so that the cleaning liquid W can be sprayed. The cleaning liquid W is supplied at the first pressure P1. When the cleaning liquid W is supplied at the second pressure P2, the valve structure that switches the injection mode toward the base end of the wiper blade 51b is provided. As a result, the supply pressure of the cleaning liquid W to the washer nozzle 60 is changed from the first pressure P1 to the second pressure P2 based on the determination that the vehicle is traveling at high speed, thereby injecting the cleaning liquid W from the washer nozzle 60, In the present embodiment, the additional injection is switched to the injection mode closer to the base end only from the injection hole 61a directed to the base end side of the wiper blade 51b. Therefore, when traveling at high speed, there is a concern that the sprayed cleaning liquid W may be deficient in the cleaning liquid W at the proximal end side toward the distal end side of the wiper blade 51b due to strong traveling wind during wiping of the wiper 51. Since the additional injection of the cleaning liquid W during high-speed traveling is performed while being biased toward the base end of the wiper blade 51b, the cleaning liquid W that tends to be insufficient on the base end side of the wiper blade 51b during high-speed traveling is preferably supplied. In addition, it is possible to reduce locations where the cleaning liquid W is insufficient in the wiping range of the wiper blade 51b. Therefore, the wiping surface 50a using the cleaning liquid W can be sufficiently removed.

  (2) In the present embodiment, the base injection at the lower inversion position A1 before the operation of the wiper 51 and the additional injection during the wiping operation of the wiper 51 are performed, and the injection mode at the time of the additional injection is changed to the vehicle speed. It is changed according to. That is, the additional injection performed during the wiping operation of the wiper 51 is a state in which the longitudinal direction of the wiper blade 51b is orthogonal to the vehicle width direction, that is, parallel to the traveling wind and close to the position where the cleaning liquid W is greatly affected by the traveling wind. Therefore, during the additional injection at the time of high speed traveling, the injection is performed while being biased toward the proximal end of the wiper blade 51b. In this case, the injection toward the distal end side is stopped to stop the ejection toward the proximal end side. While the injection pressure is increased, it is possible to prevent the supplied cleaning liquid W from flowing out of the wiping range of the wiper blade 51b.

  (3) In the present embodiment, only the base injection at the lower inversion position A1 is performed when it is determined that the vehicle is stopped, and the base injection and the additional injection using the first pressure P1 when it is determined that the vehicle is traveling at a low speed. That is, the base injection and the additional injection that are dispersed on the base end side and the front end side of the wiper blade 51b are executed. When it is determined that the vehicle is traveling at a high speed, the base injection by the first pressure P1, that is, the base injection dispersed to the base end side and the tip end side of the wiper blade 51b, and the additional injection by the second pressure P2, that is, the wiper blade 51b Additional injection biased toward the proximal end is performed. That is, since the traveling wind is not received when the vehicle is stopped, the cleaning liquid W is spread over the entire wiping area of the wiper blade 51b only by the base injection at the lower inversion position A1 before the operation of the wiper 51. In addition, since traveling wind is received during low-speed traveling, in addition to the base injection, an additional injection that is dispersed in the same manner as the base injection is performed so that the cleaning wind W is spread when the cleaning liquid W during the base injection is spread. In response to this, the cleaning liquid which is out of the wiping range on the distal end side of the wiper blade 51b and tends to be insufficient on the proximal end side is compensated. Further, since the traveling wind is stronger and the tendency becomes more noticeable during high speed traveling, the base end side of the wiper blade 51b is moved by biasing the additional injection performed in addition to the base injection toward the base end portion side of the wiper blade 51b. The cleaning liquid W, which tends to be insufficient, is accurately compensated. As described above, by appropriately changing the additional injection according to the state of the traveling wind that changes according to the vehicle speed, it is possible to reduce the portion where the cleaning liquid W is insufficient while reducing the waste of the cleaning liquid W.

  (4) In the present embodiment, since the base injection at the lower inversion position A1 of the wiper 51 and the additional injection performed together with the wiping operation of the wiper 51 are continued, the injection control is prevented from becoming complicated. can do.

  (5) In the present embodiment, injection is not performed between the position where the longitudinal direction of the wiper blade 51b is perpendicular to the vehicle width direction and a position that is a predetermined angle (30 degrees in the present embodiment). . That is, in the region from the position where the longitudinal direction of the wiper blade 51b is orthogonal to the vehicle width direction, that is, parallel to the traveling wind to the position before a predetermined angle, the cleaning liquid W spread by the wiper 51 is affected by the traveling wind. Therefore, by not performing the injection in the region, the outflow of the cleaning liquid W from the front end side of the wiper blade 51b toward the upper end portion of the windshield 50 can be prevented, and the cleaning liquid W Waste can be reduced.

  In addition, in the region where the longitudinal direction of the wiper blade 51b is approximately 30 ° from the position orthogonal to the vehicle width direction, the region is more affected by the above-described traveling wind, and thus is added as in the present embodiment. It is preferable to set the position at which the injection is stopped to a position about 30 ° in front.

  (6) In the present embodiment, one or more reciprocating wiping operations of the wiper 51 without spraying the cleaning liquid W are performed after the spraying of the cleaning liquid W is finished. Thereby, generation | occurrence | production of the wiping residue of the washing | cleaning liquid W on the wiping surface 50a or the washing | cleaning liquid W immediately after wiping etc. can be suppressed by the wiping operation | movement of the wiper 51 one time or more without the injection of the washing | cleaning liquid W.

  (7) In the present embodiment, when the washer switch 26 is continuously turned on for a predetermined time or more, the cleaning liquid W is continuously sprayed during the on-operation period. That is, the washer switch 26 is turned on for a long time when the operator needs more cleaning liquid W, such as when dirt that does not easily fall off adheres to the wiping surface 50a. Therefore, when the washer switch 26 is turned on for a long period of time longer than a predetermined time, the spray of the cleaning liquid W is continued during the on-operation period, so that the operator's intention can be met.

The embodiment of the present invention may be modified as follows.
In the embodiment described above, the rotation detection sensor (not shown) for detecting the rotation of the rotation shaft of the motor provided in the wiper motor main body 15 is used for the lower reversal position A1, the upper reversal position A2, the injection stop position A3, etc. The position of the wiper fixed position stop switch 16 is added to the wiper fixed position stop switch 16 by detecting the upper reverse position A2 and the injection stop position A3 other than the lower reverse position A1. Various controls may be performed based on the detection.

  In the above embodiment, the spray holes 61a to 61c of the washer nozzle 60 are provided at three locations along the longitudinal direction of the wiper blade 51b. However, the number and arrangement are not limited to this and may be changed as appropriate. Good. Moreover, you may change suitably the injection direction of the injection holes 61a-61c. For example, the hole diameter may be formed in advance so that the injection amount of the injection hole 61a on the base end side is larger than that of the other injection holes 61b and 61c.

  In the above embodiment, the washer nozzle 60 is provided on the wiper blade 51b side, but may be provided on the wiper arm 51a side. Incidentally, the configuration of the wiper 51 may be changed as appropriate. For example, the wiper blade 51b is configured to cover the lever assembly with the cover member 51y, but has a configuration in which the cover member is not used, or a lever assembly including a plurality of levers. It may be configured with one lever without using.

In the above embodiment, the threshold value for determining whether the vehicle is traveling at low speed or high speed is 80 [km / h], but may be changed as appropriate.
In the above embodiment, whether or not to perform additional injection is divided according to the vehicle speed, but based on the input of a signal from a temperature sensor mounted on the vehicle, for example, as shown by the broken line in FIG. A temperature determination unit 14e that detects the outside air temperature may be provided in the washer drive control device 14, and the degree of evaporation of the cleaning liquid W may be added to the additional injection.

  In the above embodiment, the upper reversal position A2 (second reversal position) from the lower reversal position A1 (first reversal position) where the longitudinal direction of the wiper blade 51b is substantially parallel to the vehicle width direction is substantially perpendicular to the vehicle width direction. ), The wiper 51 is applied to the wiping operation in the range up to, but may be applied to other wiping range. For example, the second inversion position may greatly exceed the position substantially orthogonal to the vehicle width direction, and the first inversion position is a position substantially orthogonal to the opposite vehicle width direction across the pivot shaft 52. You may apply to things.

  In the above embodiment, the base injection at the lower inversion position A1 and the additional injection performed together with the wiping operation of the wiper 51 are made continuous. For example, the additional injection is performed separately from the base injection without being continued. Alternatively, the position and the number of additional injections may be appropriately changed. Further, the additional injection is stopped at a position 30 ° before the position where the longitudinal direction of the wiper blade 51b is orthogonal to the vehicle width direction, but this may be changed as appropriate.

  In the above embodiment, only base injection with the first pressure P1 is performed when the vehicle is stopped, base injection with the first pressure P1 and additional injection are performed both when traveling at low speeds, and base injection with the first pressure P1 is performed when traveling at high speeds However, the injection mode corresponding to the vehicle speed is not limited to this. For example, it is good also as injection by the 2nd pressure P2 at the time of base injection at the time of high-speed driving. Moreover, in the type which does not implement additional injection, you may make it change the injection aspect according to a vehicle speed with respect to base injection.

  The washer nozzle 60 of the above embodiment has a valve structure that switches to the injection mode toward the base end side when the supply pressure of the cleaning liquid W becomes the second pressure P2 higher than the first pressure P1, The configuration of the washer nozzle 60 is not limited to this. For example, a valve structure may be provided in which the second pressure P2 is made lower than the first pressure P1, and the mode is switched to the injection mode toward the proximal end at the lower second pressure P2.

  -Although the wiper arm 51a and wiper blade 51b of the above-described embodiment are one in the drawing and the like, a plurality of wiper arms 51a and wiper blades 51b are provided in the vehicle width direction and mechanically driven synchronously by a link mechanism or the like. Any of a configuration in which a plurality of wiper motors are electrically driven synchronously and a configuration in which only one wiper motor is driven may be used.

Next, technical ideas that can be grasped from the above-described embodiment and other examples will be described below.
(A) In the vehicle wiper washer device according to claim 8,
The interlock control unit performs base injection of the cleaning liquid at the first inversion position where the wiper starts wiping based on an operation of turning on the washer switch, and at least once the wiper is interlocked with the injection. Reciprocating wiping operation is performed, and the wiper performs at least one additional injection of the cleaning liquid during the wiping operation of the wiper on the way from the first reversal position to the second reversal position,
The vehicle wiper washer device characterized in that the injection mode changing means changes at least the injection mode during the additional injection in accordance with the vehicle speed.

(B) In the vehicle wiper washer device described in (a) above,
The vehicle speed determining means is configured to be able to determine when the vehicle is stopped, when traveling at a low speed less than the predetermined speed, and when traveling at a high speed above the predetermined speed.
The interlock control means performs only the base injection when it is determined that the vehicle is stopped, and cooperates with the injection mode changing means when it is determined that the vehicle is traveling at a low speed. The base injection and the additional injection are performed, and when it is determined that the vehicle is traveling at high speed, the base injection by the first pressure and the additional injection by the second pressure in cooperation with the injection mode changing means And a wiper washer device for a vehicle.

(C) In the vehicle wiper washer device described in (i) or (b) above,
The vehicle wiper washer device characterized in that the interlock control means continuously performs the base injection and the additional injection.

(D) The vehicle wiper washer device according to any one of claims 8 and (a) to (c),
The wiper washer device for a vehicle according to claim 1, wherein the interlock control means does not perform the injection between a position where a longitudinal direction of the wiper blade is orthogonal to a vehicle width direction and a position a predetermined angle before.

(E) The vehicle wiper washer device according to any one of claims 8 and (i) to (d) above.
The interlock control means causes the wiper to perform one or more reciprocating wiping operations of the wiper without spraying the cleaning liquid after the spraying of the cleaning liquid is finished.

(F) In the vehicle wiper washer device according to any one of claims 8 and (a) to (e),
When the washer switch is continuously turned on for a predetermined time or more, the interlock control means continues to inject the cleaning liquid during the on-operation period.

  According to said (a)-(f), the effect similar to Claims 2-7 can be acquired, respectively.

It is a lineblock diagram of the wiper washer device for vehicles in this embodiment. It is a block diagram of a washer drive control device. It is a perspective view for demonstrating the structure of a wiper. (A) is sectional drawing for demonstrating the structure of a washer nozzle, (b) (c) is sectional drawing for demonstrating operation | movement of the washer nozzle. It is a figure for demonstrating the interlocking | linkage of jetting of a washing | cleaning liquid and wiping of a wiper.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Wiper motor, 12 ... Wiper drive control apparatus which comprises control apparatus, 13 ... Washer motor, 14 ... Washer drive control apparatus which comprises control apparatus, 14b ... Washer operation command part which comprises interlocking control means, 14d ... Vehicle speed determination Vehicle speed determination section as means, 26 ... washer switch, 50 ... windshield, 50a ... wiping surface, 51 ... wiper, 51b ... wiper blade, 60 ... washer nozzle, 61a-61c ... injection hole, A1 ... first inversion position Lower reversing position, A2... Upper reversing position as the second reversing position, P1... First pressure, P2.

Claims (8)

A washer motor provided to a wiper for wiping the wiping surface of the vehicle windshield and controlling a washer motor from a washer nozzle for injecting the cleaning liquid onto the wiping surface based on an on operation of a washer switch. A wiper washer control device for a vehicle that controls a wiper motor so as to cause the wiper to perform a reciprocating wiping operation between a first and a second reversal position in conjunction with injection,
The washer nozzle has a plurality of injection holes for spraying the cleaning liquid dispersed on the base end side and the front end side of the wiper blade constituting the wiper, and when the cleaning liquid is supplied at a first pressure, the wiper A valve structure that sprays dispersedly on the proximal end side and the distal end side of the blade, and switches the injection mode toward the proximal end of the wiper blade when the cleaning liquid is supplied at a second pressure different from the first pressure. It is prepared and
Based on the ON operation of the washer switch, at least one injection of the cleaning liquid is performed in the middle from the first reverse position where the wiper starts wiping to the second reverse position, and in conjunction with the injection, Interlocking control means for performing at least one reciprocating wiping operation of the wiper;
Vehicle speed determining means for determining whether the vehicle speed is equal to or higher than a predetermined speed;
When the vehicle speed determining means determines that the vehicle speed is equal to or higher than a predetermined speed, the washer for changing the supply pressure of the cleaning liquid to the washer nozzle at the time of injection from the first pressure to the second pressure. A vehicle wiper washer control device comprising: an injection mode changing unit that controls a motor to switch the injection of the cleaning liquid from the washer nozzle to an injection mode closer to a base end of the wiper blade. The vehicle wiper washer control device according to claim 1,
The interlock control unit performs base injection of the cleaning liquid at the first inversion position where the wiper starts wiping based on an operation of turning on the washer switch, and at least once the wiper is interlocked with the injection. Reciprocating wiping operation is performed, and the wiper performs at least one additional injection of the cleaning liquid during the wiping operation of the wiper on the way from the first reversal position to the second reversal position,
The vehicle wiper washer control device characterized in that the injection mode changing means changes at least the injection mode at the time of the additional injection in accordance with the vehicle speed. The vehicle wiper washer control device according to claim 2,
The vehicle speed determining means is configured to be able to determine when the vehicle is stopped, when traveling at a low speed less than the predetermined speed, and when traveling at a high speed above the predetermined speed.
The interlock control means performs only the base injection when it is determined that the vehicle is stopped, and cooperates with the injection mode changing means when it is determined that the vehicle is traveling at a low speed. The base injection and the additional injection are performed, and when it is determined that the vehicle is traveling at high speed, the base injection by the first pressure and the additional injection by the second pressure in cooperation with the injection mode changing means And a wiper washer control device for a vehicle. In the vehicle wiper washer control device according to claim 2 or 3,
The vehicle wiper washer control apparatus, wherein the interlock control means continuously performs the base injection and the additional injection. In the vehicle wiper washer control device according to any one of claims 1 to 4,
The vehicle wiper washer control device according to claim 1, wherein the interlock control means does not perform the injection between a position where a longitudinal direction of the wiper blade is orthogonal to a vehicle width direction and a position a predetermined angle before. In the vehicle wiper washer control device according to any one of claims 1 to 5,
The interlock control unit causes the wiper to perform one or more reciprocating wiping operations of the wiper without spraying the cleaning liquid after the spraying of the cleaning liquid is finished. In the vehicle wiper washer control device according to any one of claims 1 to 6,
The vehicle wiper washer control device according to claim 1, wherein when the washer switch is continuously turned on for a predetermined time or more, the interlock control means continues to inject the cleaning liquid during the on operation period. A wiper provided with a washer nozzle for wiping a wiping surface of a windshield of a vehicle and supplying a cleaning liquid to the wiping surface;
A washer motor driven to eject the cleaning liquid from the washer nozzle provided in the wiper;
A wiper motor driven to reciprocate the wiper between the first and second reversal positions;
A vehicle comprising: a control device that controls the washer motor to inject the cleaning liquid based on an ON operation of a washer switch and controls the wiper motor to reciprocate the wiper in conjunction with the injection of the cleaning liquid. Wiper washer device for
The washer nozzle has a plurality of injection holes for spraying the cleaning liquid dispersed on the base end side and the front end side of the wiper blade constituting the wiper, and when the cleaning liquid is supplied at a first pressure, the wiper A valve structure that sprays dispersedly on the proximal end side and the distal end side of the blade, and switches the injection mode toward the proximal end of the wiper blade when the cleaning liquid is supplied at a second pressure different from the first pressure. It is prepared and
The controller is
Based on the ON operation of the washer switch, at least one injection of the cleaning liquid is performed in the middle from the first reverse position where the wiper starts wiping to the second reverse position, and in conjunction with the injection, Interlocking control means for performing at least one reciprocating wiping operation of the wiper;
Vehicle speed determining means for determining whether the vehicle speed is equal to or higher than a predetermined speed;
When the vehicle speed determining means determines that the vehicle speed is equal to or higher than a predetermined speed, the washer for changing the supply pressure of the cleaning liquid to the washer nozzle at the time of injection from the first pressure to the second pressure. A vehicle wiper washer device comprising: an injection mode changing unit that controls a motor to switch the injection of the cleaning liquid from the washer nozzle to an injection mode closer to a base end of the wiper blade.

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