WO2017122643A1 - Dispositif essuie-glace pour véhicule et procédé de commande de dispositif essuie-glace pour véhicule - Google Patents

Dispositif essuie-glace pour véhicule et procédé de commande de dispositif essuie-glace pour véhicule Download PDF

Info

Publication number
WO2017122643A1
WO2017122643A1 PCT/JP2017/000518 JP2017000518W WO2017122643A1 WO 2017122643 A1 WO2017122643 A1 WO 2017122643A1 JP 2017000518 W JP2017000518 W JP 2017000518W WO 2017122643 A1 WO2017122643 A1 WO 2017122643A1
Authority
WO
WIPO (PCT)
Prior art keywords
output shaft
rotation angle
motor
wiper
rotation
Prior art date
Application number
PCT/JP2017/000518
Other languages
English (en)
Japanese (ja)
Inventor
典弘 杉本
岡田　真一
義久 伴野
Original Assignee
アスモ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2016005532A external-priority patent/JP2017124761A/ja
Priority claimed from JP2016078996A external-priority patent/JP6828263B2/ja
Application filed by アスモ株式会社 filed Critical アスモ株式会社
Publication of WO2017122643A1 publication Critical patent/WO2017122643A1/fr

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/08—Wipers or the like, e.g. scrapers characterised by the drive electrically driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/16—Means for transmitting drive
    • B60S1/18—Means for transmitting drive mechanically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/16—Means for transmitting drive
    • B60S1/18—Means for transmitting drive mechanically
    • B60S1/24—Means for transmitting drive mechanically by rotary cranks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/28—Wipers or the like, e.g. scrapers characterised by a plurality of wipers

Definitions

  • the technology of the present disclosure relates to a vehicle wiper device that can change the position of a wiping range and a method for controlling the vehicle wiper device.
  • a wiper arm to which a wiper blade is attached is reciprocated between a lower inversion position and an upper inversion position by a wiper motor.
  • the trajectory of the operation of the wiper arm is substantially arc-shaped around the pivot axis of the wiper arm. Therefore, the wiping range, which is the area where the wiper blade wipes the windshield glass or the like, has a substantially sector shape with the pivot shaft as the center.
  • the windshield glass of an automobile has a substantially isosceles trapezoidal shape. Therefore, in the parallel (tandem) type wiper device in which the two wiper arms simultaneously rotate in the same direction, when the pivot shaft is provided below the windshield glass, the upper reversing position of the wiper blade on the driver's seat side is approximately
  • the windshield glass having an isosceles trapezoid shape is provided in parallel with the leg at a position close to the driver's leg (the vertical side of the isosceles trapezoid shape).
  • the upper reversal position of the wiper blade on the passenger seat side of the tandem type wiper device is also provided in parallel with the driver seat side leg of the windshield glass in order to wipe off the windshield glass on the driver seat side preferentially.
  • the wiping range of the wiper blade is substantially fan-shaped, so if the upper inversion position is provided at the above position, there is an area that is not wiped around the upper corner of the windshield glass on the passenger seat side. Arise.
  • the wiper device link mechanism is a so-called four-bar link, so that the entire length of the wiper arm in operation is apparently extended to widen the wiping range of the windshield glass on the passenger seat side.
  • a wiper device is disclosed.
  • the wiper device described in Japanese Patent Application Laid-Open No. 2000-25578 transmits the driving force of the motor to the passenger seat side wiper arm 150P via the four-bar linkage mechanism 160, whereby the passenger seat side
  • the wiper blade 154P wipes the wiping range Z12 between the lower inversion position P4P and the upper inversion position P3P.
  • the wiping range Z10 is a wiping range in a wiper device that does not have the four-bar linkage mechanism 160 and moves the wiper arm around the pivot shaft.
  • the wiper device described in Japanese Patent Laid-Open No. 2000-25578 is closer to the upper corner of the windshield glass 1 than the wiper device without the four-bar linkage mechanism 160. Wiping is possible.
  • the technology of the present disclosure has been made in view of the above, and it is possible to reduce a delay in response of a motor for moving a wiper arm synchronized with the reciprocating operation of the wiper arm to the non-wiping range side.
  • An object is to provide a control method.
  • a vehicle wiper device configured to perform a wiping operation on a windshield of a wiper blade connected to a tip portion of a wiper arm by rotation of a first output shaft.
  • 1 motor a second motor that operates a position changing mechanism provided on the wiper arm by rotation of the second output shaft to change the position of the wiping range on the windshield by the wiper blade, and the first output shaft
  • the driving force of the second motor is changed to the wiping range of the wiping range via the position changing mechanism from the timing of changing the position of the wiping range.
  • a control unit that controls the rotation of the second motor at a timing before a delay time corresponding to the time transmitted to change the position.
  • This vehicle wiper device varies (enlarges) the wiper blade wiping range by rotating the second motor in synchronization with the wiping operation of the wiper blade by the rotation of the first motor.
  • the second motor according to this vehicle wiper device is a drive source for varying (enlarging) the wiping range of the windshield by the wiper blade. By changing (enlarging) the wiping range of the windshield by the wiper blade, the wiper blade can be wiped up to an area near the upper corner on the passenger seat side of the windshield.
  • the vehicle wiper device also accelerates the operation of the second motor so that the position changing mechanism of the wiper arm base operates without delay during the wiping operation from one reversal position of the wiper blade to the other reversal position. Control. As a result, it is possible to reduce the delay in the extension and convergence of the wiper arm that is synchronized with the reciprocation of the wiper arm.
  • a vehicle wiper device is the vehicle wiper device according to the first aspect, wherein the delay time is determined while the wiper blade moves from one reverse position to the other reverse position. In the wiping operation, the time is increased from 0 to the maximum value and then decreased from the maximum value, and becomes 0 when the wiper blade reaches the other reverse position.
  • the delay time that is the basis of the time to accelerate the rotation control of the second output shaft, which is the drive source of the position change mechanism is that the wiper blade that does not extend the position change mechanism has two inversion positions on the windshield. 0 if present.
  • the timing for eliminating the delay time is set to 0, so that the position changing mechanism can be contracted in synchronization with the stop of the wiper blade at the reverse position.
  • the vehicle wiper device is the vehicle wiper device according to the second aspect, wherein the maximum value of the delay time is continued for a predetermined time.
  • the maximum delay time is maintained for a predetermined time when the wiper blade performs a wiping operation between the inverted positions.
  • the operation of the second motor is controlled early so that the position changing mechanism of the wiper arm base operates without delay at the timing corresponding to the maximum value. As a result, it is possible to reduce the delay in the extension and convergence of the wiper arm that is synchronized with the reciprocation of the wiper arm.
  • a vehicle wiper device is the vehicle wiper device according to any one of the first to third aspects, wherein the rotation angle detection unit detects a rotation angle of the first output shaft. And a storage unit storing a rotation angle map that defines a rotation angle of the second output shaft with respect to a rotation angle of the first output shaft, and the control unit has a rotation angle of the second output shaft.
  • the rotation angle of the first output shaft detected by the rotation angle detection unit is a rotation angle calculated based on the rotation angle obtained by advancing the rotation angle corresponding to the delay time and the rotation angle map.
  • rotation control of the second output shaft is performed.
  • the vehicle wiper device advances the rotation angle of the first output shaft detected by the rotation angle detector, and calculates the rotation calculated based on the rotation angle of the first output shaft that has been advanced and the rotation angle map.
  • the second output shaft is rotated so as not to be delayed with respect to the rotation of the first output shaft.
  • the vehicle wiper device is the vehicle wiper device according to any one of the first to third aspects, wherein the rotation angle detection unit detects a rotation angle of the first output shaft. And a corrected rotation angle map that defines the rotation angle of the second output shaft relative to the rotation angle of the first output shaft so that the rotation control of the second output shaft is advanced by a time corresponding to the timing before the delay time.
  • This vehicle wiper device uses a corrected rotation angle map that is determined so that the timing of the rotation control of the second output shaft relative to the rotation angle of the first output shaft is faster, thereby preventing the rotation of the first output shaft.
  • the second output shaft is rotated so as not to be delayed. As a result, it is possible to reduce the delay in expansion and contraction of the position changing mechanism synchronized with the reciprocating operation of the wiper arm.
  • the vehicular wiper apparatus according to a sixth aspect of the technology of the present disclosure is the vehicular wiper apparatus according to any one of the first to fifth aspects, wherein the first motor has an intersection where a part of the wiping locus intersects. And a second wiper blade is provided on at least one wiper blade of the pair of wiper blades.
  • the second motor is provided on at least one wiper blade of the pair of wiper blades.
  • the position changing mechanism is operated to change the position of the wiping range by the at least one wiper blade, and the control unit performs one reciprocal wiping operation at one of the tip portions of the pair of wiper blades.
  • the angle formed by the wiping trajectory and the other wiping trajectory and the crossing angle of the crossing portion on the non-wiping side is larger than when the wiper arm is not expanded or contracted. Kunar so on, for controlling the first motor and the second motor.
  • the wiping operation of the wiping surface is performed by the pair of wiper blades having an intersecting portion where a part of the wiping locus intersects by the first motor.
  • the wiping range is changed (expanded) by apparently extending or contracting (extending) the wiper arm that operates at least one of the pair of wiper blades by the second motor.
  • the first motor and the second motor are controlled so that the angle becomes larger than the case where it is not.
  • the angle of the intersection of the wiping trajectory of the pair of wiper blades is increased, so that rainwater wiped out of the wiping range is prevented from dripping from the intersection to the wiping surface, compared to the case where the intersection is an acute angle. be able to.
  • control unit is configured so that the intersecting angle is maximized within a change range of the position of the at least one wiper arm by the second motor.
  • the first motor and the second motor are controlled.
  • control unit has the rotation angle of the second output shaft set in advance according to the rotation angle of the first output shaft.
  • the first motor and the second motor are controlled.
  • the wiping range can be changed by extending or contracting the wiper arm according to the rotation angle of the first output shaft of the first motor (wiping position of the wiper blade).
  • the first motor reciprocally rotates each of the wiper arms that operate the pair of wiper blades by rotation of the first output shaft
  • a reciprocating wiping operation of the pair of wiper blades is performed between a predetermined upper reversal position and a predetermined lower reversal position of the wiping surface
  • the second motor moves the at least one wiper blade via a link mechanism.
  • the wiping range is changed by moving between the first position and the second position away from the passenger seat side.
  • the wiping range by the wiper blade on the upper side of the passenger seat can be apparently enlarged by controlling the first motor and the second motor.
  • the control unit moves the first fulcrum to the first fulcrum.
  • the first motor and the second motor are controlled so as to be positioned closer to the second position than the position.
  • the angle of the intersection of the wiping trajectories of the pair of wiper blades can be increased.
  • the wiper arm connected to the tip of the wiper arm is wiped on the windshield.
  • a wiping operation step for controlling the rotation of the first output shaft of the first motor to be operated, and a position changing mechanism provided on the wiper arm is operated to change the position of the wiping range on the windshield by the wiper blade.
  • a control method for a vehicle wiper device comprising: a scaling step for controlling the rotation of the second output shaft of the two motors, wherein the second output shaft is rotated in synchronization with the rotation of the first output shaft.
  • the wiping range of the wiper blade is varied (enlarged) by rotating the second motor in synchronization with the wiping operation of the wiper blade by the rotation of the first motor.
  • the second motor according to this vehicle wiper device control method is a drive source for varying (enlarging) the wiping range of the windshield by the wiper blade. By changing (enlarging) the wiping range of the windshield by the wiper blade, the wiper blade can be wiped up to an area near the upper corner on the passenger seat side of the windshield.
  • control method of the vehicle wiper device is such that the wiper arm base position change mechanism operates without delay during the wiping operation from one reversal position of the wiper blade to the other reversal position. Control early. As a result, it is possible to reduce the delay in the extension and convergence of the wiper arm that is synchronized with the reciprocation of the wiper arm.
  • the vehicle wiper device control method is the vehicle wiper device control method according to the eleventh aspect, in which the delay time is determined so that the wiper blade is reversed from one reversal position to the other reversal position.
  • the delay time is determined so that the wiper blade is reversed from one reversal position to the other reversal position.
  • the delay time that is the basis of the time to accelerate the rotation control of the second output shaft, which is the drive source of the position change mechanism, is such that the wiper blade that does not extend the position change mechanism is 2 on the windshield. 0 when there is one inversion position.
  • the timing for eliminating the delay time is set to 0, so that the position changing mechanism can be contracted in synchronization with the stop of the wiper blade at the reverse position.
  • the control method for a vehicle wiper apparatus according to a thirteenth aspect of the technology of the present disclosure is the control method for a vehicle wiper apparatus according to the twelfth aspect, wherein the maximum value of the delay time is continued for a predetermined time.
  • the maximum delay time is maintained for a predetermined time when the wiper blade performs a wiping operation between the inverted positions.
  • the operation of the second motor is controlled early so that the position changing mechanism of the wiper arm base operates without delay at the timing corresponding to the maximum value. As a result, it is possible to reduce the delay in the extension and convergence of the wiper arm that is synchronized with the reciprocation of the wiper arm.
  • the vehicle wiper device control method is the vehicle wiper device control method according to any one of the eleventh to thirteenth aspects, wherein the rotation angle of the first output shaft is A rotation angle detection step of detecting the rotation angle, wherein the rotation angle of the second output shaft advances the rotation angle of the first output shaft detected in the rotation angle detection step by an angle corresponding to the time before the delay time.
  • the rotation control of the second output shaft is performed so that the rotation angle is calculated based on the rotation angle and the rotation angle map stored in the storage unit.
  • the vehicle wiper device control method is based on the rotation angle of the first output shaft detected by the rotation angle detector, the rotation angle of the first output shaft advanced, and the rotation angle map. By controlling the rotation of the second output shaft so that the calculated rotation angle is obtained, the second output shaft is rotated so as not to be delayed with respect to the rotation of the first output shaft. As a result, it is possible to reduce the delay in expansion and contraction of the position changing mechanism synchronized with the reciprocating operation of the wiper arm.
  • the vehicle wiper device control method is the vehicle wiper device control method according to any one of the eleventh to thirteenth aspects, wherein the rotation angle detection is to detect the rotation angle of the first output shaft.
  • the rotation angle of the first output shaft detected in the rotation angle detection step and the rotation control of the second output shaft stored in the storage unit earlier by a time corresponding to the timing before the delay time.
  • the corrected rotation angle map that defines the rotation angle of the second output shaft relative to the rotation angle of the first output shaft so that the rotation angle of the second output shaft becomes the rotation angle determined based on Rotation control of the second output shaft is performed.
  • This vehicle wiper device control method uses a corrected rotation angle map determined so that the rotation control timing of the second output shaft relative to the rotation angle of the first output shaft is advanced, thereby rotating the first output shaft. On the other hand, the second output shaft is rotated so as not to be delayed. As a result, it is possible to reduce the delay in expansion and contraction of the position changing mechanism synchronized with the reciprocating operation of the wiper arm.
  • FIG. 3 is a cross-sectional view of the second holder member along the line AA in FIG. 2. It is a top view in operation of the wiper device for vehicles concerning an embodiment of art of this indication. It is a top view in operation of the wiper device for vehicles concerning an embodiment of art of this indication. It is a top view in operation of the wiper device for vehicles concerning an embodiment of art of this indication. It is a top view in operation of the wiper device for vehicles concerning an embodiment of art of this indication. It is a top view in operation of the wiper device for vehicles concerning an embodiment of art of this indication. It is a top view in operation of the wiper device for vehicles concerning an embodiment of art of this indication.
  • FIG. 12 is a flowchart illustrating another example of the rotation angle advance processing of the wiper device according to the embodiment of the technology of the present disclosure.
  • the V-shaped angle of the intersection where the wiping trajectory of the driver's side wiper blade and the wiping trajectory of the passenger's side wiper blade intersect at the inverted position is larger than when the wiping range is not expanded. It is a figure for demonstrating that it becomes easy to become an acute angle. It is an enlarged view of the dotted line round part of FIG. 14A, and a dashed-dotted line round part.
  • FIG. 1 is a schematic diagram illustrating an example of a wiper system 100 including a vehicle wiper device (hereinafter referred to as “wiper device”) 2 according to a first embodiment of the technology of the present disclosure.
  • a wiper system 100 shown in FIG. 1 is for wiping a windshield glass 1 as a “windshield” provided in a vehicle such as a passenger car, for example, and includes a pair of wiper arms (driver seat side wiper arms described later). 17 and the passenger seat side wiper arm 35), the first motor 11, the second motor 12, the control circuit 52, the drive circuit 56, and the washer device 70.
  • FIG. 1 shows the case of a right-hand drive vehicle
  • the right side of the vehicle (left side of FIG. 1) is the driver's seat side
  • the left side of the vehicle (right side of FIG. 1) is the passenger seat side.
  • the left side of the vehicle (right side in FIG. 1) is the driver's seat side
  • the right side of the vehicle (left side in FIG. 1) is the passenger seat side.
  • the configuration of the wiper device 2 is opposite to the left and right.
  • the first motor 11 reciprocates each of the driver seat side wiper arm 17 and the passenger seat side wiper arm 35 on the windshield glass 1 by rotating the output shaft forward and backward within a range of a predetermined rotation angle. It is a driving source.
  • the driver's seat side wiper arm 17 operates so that the driver's seat side wiper blade 18 wipes the upper inversion position P1D from the lower inversion position P2D.
  • the wiper arm 35 operates so that the passenger-side wiper blade 36 wipes the upper inversion position P1P from the lower inversion position P2P.
  • the driver's seat side wiper arm 17 When the first motor 11 rotates in the reverse direction, the driver's seat side wiper arm 17 operates so that the driver's seat side wiper blade 18 wipes the upper inverted position P1D to the lower inverted position P2D, and the passenger seat side wiper arm 35
  • the passenger-side wiper blade 36 operates so as to wipe from the upper inversion position P1P to the lower inversion position P2P.
  • the outer edge portion of the windshield glass 1 is a light shielding portion 1A coated with a ceramic black pigment in order to block visible light and ultraviolet rays.
  • the black pigment is applied to the outer edge of the windshield glass 1 on the vehicle interior side, and then melted by being heated at a predetermined temperature, and is fixed on the vehicle interior side surface of the windshield glass 1.
  • the windshield glass 1 is fixed to the vehicle body by an adhesive applied to the outer edge portion.
  • the light shielding portion 1A that does not transmit ultraviolet rays is provided at the outer edge portion, so that the adhesive by ultraviolet rays is provided. Suppresses deterioration.
  • first predetermined rotation angle a predetermined rotation angle
  • the second motor 12 is positive at a rotation angle from 0 ° to a predetermined rotation angle (hereinafter referred to as “second predetermined rotation angle”) of an output shaft of the second motor 12 (second output shaft 12A described later).
  • second predetermined rotation angle a predetermined rotation angle
  • This is a drive source that apparently extends the wiper arm 35 on the passenger seat side by rotating and reversely rotating.
  • the passenger seat side wiper arm 35 is apparently extended upward on the passenger seat side, and the passenger seat side wiper blade 36 wipes the wiping range Z2.
  • the magnitude of the second predetermined rotation angle it is possible to change the range in which the passenger seat side wiper arm 35 extends. For example, if the second predetermined rotation angle is increased, the range in which the passenger seat side wiper arm 35 extends is increased, and if the second predetermined rotation angle is decreased, the range in which the passenger seat side wiper arm 35 is extended is decreased.
  • the first motor 11 and the second motor 12 are motors that can control the rotation direction of each output shaft to forward rotation and reverse rotation, and can also control the rotation speed of each output shaft. Either a DC motor or a brushless DC motor.
  • a control circuit 52 for controlling each rotation is connected to the first motor 11 and the second motor 12.
  • the control circuit 52 includes, for example, an absolute angle sensor (not shown) as a “rotation angle detector” provided near the output shaft ends of the first motor 11 and the second motor 12.
  • the duty ratio of the voltage applied to each of the first motor 11 and the second motor 12 based on the detected rotation direction, rotation position, rotation speed, and rotation angle of the output shaft of each of the first motor 11 and the second motor 12. Is calculated.
  • the voltage applied to each of the first motor 11 and the second motor 12 is a pulse width that modulates the voltage (approximately 12V) of the on-vehicle battery as a power source by turning on and off the switching element by a switching element.
  • Generated by modulation PWM
  • the duty ratio is a ratio of the time of one pulse generated when the switching element is turned on with respect to one period of a waveform of a voltage generated by PWM.
  • One period of the waveform of the voltage generated by PWM is the sum of the time of the one pulse described above and the time during which the switching element is turned off and no pulse is generated.
  • the drive circuit 56 turns on and off switching elements in the drive circuit 56 in accordance with the duty ratio calculated by the control circuit 52 to generate voltages to be applied to the first motor 11 and the second motor 12, and the generated voltages are supplied to the first circuit. The voltage is applied to each winding terminal of the first motor 11 and the second motor 12.
  • each of the first motor 11 and the second motor 12 has a speed reduction mechanism composed of a worm gear
  • the rotation direction, the rotation speed, and the rotation angle of each output shaft are the first
  • the rotation speed and rotation angle of the motor 11 main body and the second motor 12 main body are not the same.
  • each motor and each speed reduction mechanism are inseparably configured. Therefore, hereinafter, the rotation speed and the rotation angle of each output shaft of the first motor 11 and the second motor 12 are expressed as follows. The rotation direction, rotation speed, and rotation angle of each of the first motor 11 and the second motor 12 are considered.
  • the absolute angle sensor is provided, for example, in each speed reduction mechanism of the first motor 11 and the second motor 12, and converts the magnetic field (magnetic force) of an excitation coil or a magnet that rotates in conjunction with each output shaft into a current. It is a sensor to detect, for example, a magnetic sensor such as an MR sensor.
  • the control circuit 52 determines the position of the driver's seat side wiper blade 18 on the windshield glass 1 from the rotation angle of the output shaft of the first motor 11 detected by an absolute angle sensor provided near the output shaft end of the first motor.
  • a computable microcomputer 58 is provided. The microcomputer 58 controls the drive circuit 56 so that the rotational speed of the output shaft of the first motor 11 changes according to the calculated position.
  • the microcomputer 58 detects the rotation angle of the output shaft of the first motor 11 detected by the absolute angle sensor provided near the output shaft end of the first motor on the windshield glass 1 of the passenger side wiper blade 36. The position is calculated, and the drive circuit 56 is controlled so that the rotational speed of the output shaft of the second motor 12 changes according to the calculated position. Further, the microcomputer 58 calculates the degree of extension of the passenger seat side wiper arm 35 from the rotation angle of the output shaft of the second motor 12 detected by the absolute angle sensor provided near the output shaft end of the second motor 12.
  • the microcomputer 58 is an example of a “control unit” of the technology of the present disclosure.
  • the control circuit 52 is provided with a memory 60 that is a storage device that stores data and programs used to control the drive circuit 56.
  • the memory 60 stores the first motor 11 and the second motor 12 according to the rotation angle of the output shaft of the first motor 11 indicating the positions of the driver-side wiper blade 18 and the passenger-side wiper blade 36 on the windshield glass 1. Data and a program for calculating the rotation speed and the like (including the rotation angle) of each output shaft are stored.
  • the microcomputer 58 is connected to a vehicle ECU (Electronic Control Unit) 90 that controls the vehicle engine and the like. Further, the vehicle ECU 90 includes a wiper switch 50, a direction indicator switch 54, a washer switch 62, a rain sensor 76, a vehicle speed sensor 92 for detecting the vehicle speed, an in-vehicle camera 94 for photographing the front of the vehicle, a GPS (Global Positioning System). ) A device 96 and a steering angle sensor 98 are connected.
  • a vehicle ECU Electronic Control Unit
  • the vehicle ECU 90 includes a wiper switch 50, a direction indicator switch 54, a washer switch 62, a rain sensor 76, a vehicle speed sensor 92 for detecting the vehicle speed, an in-vehicle camera 94 for photographing the front of the vehicle, a GPS (Global Positioning System). )
  • a device 96 and a steering angle sensor 98 are connected.
  • the wiper switch 50 is a switch that turns on or off the power supplied from the vehicle battery to the first motor 11.
  • the wiper switch 50 is a low-speed operation mode selection position for operating the driver-side wiper blade 18 and the passenger-side wiper blade 36 at a low speed, a high-speed operation mode selection position for operating at a high speed, and an intermittent operation that operates intermittently at a constant cycle.
  • the mode selection position can be switched to an AUTO (auto) operation mode selection position and a storage (stop) mode selection position that are operated when the rain sensor 76 detects raindrops. Further, a signal corresponding to the selected position of each mode is output to the microcomputer 58 via the vehicle ECU 90.
  • the microcomputer 58 controls the memory 60 to control corresponding to the output signal from the wiper switch 50. This is done using stored data and programs.
  • the wiper switch 50 may be separately provided with an expansion mode switch for changing the wiping range of the passenger side wiper blade 36 to the wiping range Z2.
  • a predetermined signal is input to the microcomputer 58 via the vehicle ECU 90.
  • a predetermined signal is input to the microcomputer 58, for example, when the passenger seat wiper blade 36 operates from the lower inversion position P2P to the upper inversion position P1P, the second motor 12 is configured to wipe the wiping range Z2. To control.
  • the direction indicator switch 54 is a switch for instructing the operation of a vehicle direction indicator (not shown).
  • a signal for turning on the right or left direction indicator is operated to the vehicle ECU 90 by a driver's operation. Output.
  • the vehicle ECU 90 causes the right or left direction indicator lamp to blink based on the signal output from the direction indicator switch 54.
  • a signal output from the direction indicator switch 54 is also input to the microcomputer 58 via the vehicle ECU 90.
  • the washer switch 62 is a switch for turning on or off the power supplied from the battery of the vehicle to the washer motor 64, the first motor 11 and the second motor 12.
  • the washer switch 62 is provided integrally with an operating means such as a lever provided with the wiper switch 50 described above, and is turned on by an operation such as pulling the lever or the like by a passenger.
  • the microcomputer 58 operates the washer motor 64 and the first motor 11.
  • the wiper blade 36 on the passenger side wipes from the lower reverse position P2P to the upper reverse position P1P
  • the microcomputer 58 wipes the wiper blade 36 from the upper reverse position P1P so as to wipe the wiping range Z2.
  • the second motor 12 is controlled so as to wipe the wiping range Z1. With this control, the passenger seat side of the windshield glass 1 can be wiped widely.
  • the washer pump 66 While the washer switch 62 is on, the washer pump 66 is driven by the rotation of the washer motor 64 provided in the washer device 70.
  • the washer pump 66 pumps the washer liquid in the washer liquid tank 68 to the driver side hose 72A or the passenger side hose 72B.
  • the driver seat side hose 72A is connected to a driver seat side nozzle 74A provided below the driver seat side of the windshield glass 1.
  • the passenger seat side hose 72B is connected to a passenger seat side nozzle 74B provided below the windshield glass 1 on the passenger seat side.
  • the pumped washer liquid is sprayed onto the windshield glass 1 from the driver seat side nozzle 74A and the passenger seat side nozzle 74B.
  • the washer liquid adhering to the windshield glass 1 is wiped together with dirt on the windshield glass 1 by the operating driver side wiper blade 18 and the passenger seat side wiper blade 36.
  • the microcomputer 58 controls the washer motor 64 so that it operates only while the washer switch 62 is on. Further, even when the washer switch 62 is turned off, the microcomputer 58 continues to operate until the driver seat side wiper blade 18 and the passenger seat side wiper blade 36 reach the lower reverse positions P2D and P2P. To control. Further, when the washer switch 62 is turned off when the driver-side wiper blade 18 and the passenger-side wiper blade 36 are wiped toward the upper inversion positions P1D and P1P, the microcomputer 58 The second motor 12 is controlled to wipe the wiping range Z2 until the wiper blade 18 and the passenger-side wiper blade 36 reach the upper inversion positions P1D and P1P by the rotation of the first motor 11.
  • the rain sensor 76 is, for example, a kind of optical sensor provided on the vehicle interior side of the windshield glass 1 and detects water droplets on the surface of the windshield glass 1.
  • the rain sensor 76 includes an LED that is an infrared light emitting element, a photodiode that is a light receiving element, a lens that forms an infrared optical path, and a control circuit.
  • the infrared rays emitted from the LED are totally reflected by the windshield glass 1, but if there are water droplets on the surface of the windshield glass 1, some of the infrared rays are transmitted through the water droplets and emitted to the outside.
  • the amount of reflection decreases.
  • the amount of light entering the photodiode that is the light receiving element is reduced. Based on the decrease in the amount of light, water droplets on the surface of the windshield glass 1 are detected.
  • the vehicle speed sensor 92 is a sensor that detects the rotational speed of the vehicle wheel and outputs a signal indicating the rotational speed.
  • the vehicle ECU 90 calculates the vehicle speed from the signal output from the vehicle speed sensor 92 and the circumference of the wheel.
  • the in-vehicle camera 94 is a device that captures the front of the vehicle and acquires moving image data.
  • the vehicle ECU 90 can determine whether the vehicle is approaching a curve or the like by performing image processing on moving image data acquired by the in-vehicle camera 94. Further, the vehicle ECU 90 can calculate the brightness in front of the vehicle from the luminance of the moving image data acquired by the in-vehicle camera 94.
  • the GPS device is a device that calculates the current position of the vehicle based on a positioning signal received from a GPS satellite in the sky.
  • the GPS device 96 dedicated to the wiper system 100 is used.
  • the other GPS device may be used.
  • the steering angle sensor 98 is a sensor that is provided on a rotation shaft (not shown) of the steering as an example and detects the rotation angle of the steering.
  • the wiper device 2 has a plate-like central frame 3 and one end fixed to the central frame 3, and both sides of the central frame 3 in the vehicle width direction.
  • a pair of pipe frames 4 and 5 are provided.
  • a first holder member 6 including a driver seat side pivot shaft 15 of the driver seat side wiper arm 17 and the like is formed at the other end portion of the pipe frame 4.
  • the second holder member 7 provided with the second passenger seat side pivot shaft 22 of the passenger seat side wiper arm 35 and the like is formed at the other end portion of the pipe frame 5.
  • the wiper device 2 is supported on the vehicle by a support portion 3A provided on the central frame 3, and each of the fixing portion 6A of the first holder member 6 and the fixing portion 7A of the second holder member 7 is attached to the vehicle by a bolt or the like. By being fastened, it is fixed to the vehicle.
  • the wiper device 2 includes a first motor 11 and a second motor 12 for driving the wiper device 2 on the back surface (the surface facing the passenger compartment side) of the central frame 3.
  • the first output shaft 11A of the first motor 11 passes through the central frame 3 and protrudes from the surface of the central frame 3 (surface on the outside of the vehicle), and a first drive crank arm is provided at the tip of the first output shaft 11A.
  • One end of 13 is fixed.
  • the second output shaft 12A of the second motor 12 passes through the central frame 3 and protrudes from the surface of the central frame 3, and one end of the second drive crank arm 14 is fixed to the tip of the second output shaft 12A.
  • a driver seat side pivot shaft 15 is rotatably supported by the first holder member 6, and one end of the driver seat side swing lever 16 is provided at the base end portion (the back side in FIG. 2) of the driver seat side pivot shaft 15.
  • the arm head of the driver's seat side wiper arm 17 is fixed to the tip of the driver's seat side pivot shaft 15 (front side in FIG. 2).
  • a driver seat side wiper blade 18 for wiping the driver seat side of the windshield glass 1 is connected to the tip of the driver seat side wiper arm 17.
  • the other end of the first drive crank arm 13 and the other end of the driver seat side swing lever 16 are connected via a first connecting rod 19.
  • the driver seat side swing lever 16 rotates, and the rotational force is transmitted to the driver seat side swing lever 16 via the first connecting rod 19, and the driver seat side swing lever 16. Sway.
  • the driver seat side wiper arm 17 is also swung, and the driver seat side wiper blade 18 wipes the wiping range H1 between the lower inversion position P2D and the upper inversion position P1D.
  • FIG. 3 is a cross-sectional view of the second holder member 7 taken along line AA in FIG.
  • the first holder seat side pivot shaft 21 is supported on the second holder member 7 so as to be rotatable about the first axis L1
  • the second passenger seat side pivot shaft 22 is secondly supported. It is supported so as to be rotatable about the axis L2.
  • the first axis L1 and the second axis L2 are arranged on the same straight line L (concentric).
  • FIG. 3 shows a state where the waterproof cover K shown in FIG. 2 and FIGS. 4 to 8 is removed.
  • the cylindrical part 7B is formed in the second holder member 7, and the first passenger seat side pivot shaft 21 is rotatably supported via a bearing 23 on the inner peripheral side of the cylindrical part 7B.
  • the first passenger seat side pivot shaft 21 is formed in a cylindrical shape, and the second passenger seat side pivot shaft 22 is rotatably supported via a bearing 24 on the inner peripheral side of the first passenger seat side pivot shaft 21. .
  • first passenger seat side swing lever 25 is fixed to the base end portion of the first passenger seat side pivot shaft 21, and the first drive lever 26 has a first drive lever 26 attached to the distal end portion of the first passenger seat side pivot shaft 21. One end is fixed.
  • the other end of the first passenger seat side swing lever 25 and the other end of the driver seat side swing lever 16 are connected by a second connecting rod 27. Accordingly, when the first motor 11 is driven and the driver's seat side swing lever 16 is pivoted, the second connecting rod 27 transmits the driving force to the first passenger's seat side swing lever 25 and the first passenger seat side swing lever. 25, the first drive lever 26 is swung (rotated) around the first axis L1.
  • the second passenger seat side pivot shaft 22 is formed longer than the first passenger seat side pivot shaft 21, and the base end portion and the distal end portion of the second passenger seat side pivot shaft 22 are the first.
  • One end of a second passenger seat side swinging lever 28 is fixed to the base end portion of the second passenger seat side pivot shaft 21 so as to protrude in the axial direction from the passenger seat side pivot shaft 21.
  • One end of the second drive lever 29 is fixed to the tip portion.
  • the other end of the second drive crank arm 14 and the other end of the second passenger seat side swing lever 28 are connected by a third connecting rod 31. Therefore, when the second motor 12 is driven, the second drive crank arm 14 rotates, and the third connecting rod 31 transmits the driving force of the second drive crank arm 14 to the second passenger seat side swing lever 28.
  • the second drive lever 29 is swung (rotated) together with the second passenger seat-side rocking lever 28.
  • the first passenger seat side pivot shaft 21 and the second passenger seat side pivot shaft 22 are provided coaxially, but the first passenger seat side pivot shaft 21 and the second passenger seat side pivot shaft 22 are not mutually connected.
  • the first passenger seat side pivot shaft 21 and the second passenger seat side pivot shaft 22 are not interlocked and rotate independently of each other.
  • the wiper device 2 includes a first driven lever having a base end portion coupled to a third axis L3 on the other end side of the first drive lever 26 so as to be rotatable. 32.
  • the wiper device 2 has a base end portion coupled to be rotatable about a fourth axis L4 on the distal end side of the first driven lever 32 and a fifth axis L5 on the other end side of the second drive lever 29.
  • An arm head 33 which is a second driven lever having a distal end connected to be rotatable about the center is provided.
  • the arm head 33 constitutes a passenger-side wiper arm 35 together with a retainer 34 whose base end is fixed to the distal end of the arm head 33.
  • a front passenger side wiper blade 36 for wiping the front passenger side of the windshield glass 1 is connected to the front end of the front passenger side wiper arm 35.
  • the first drive lever 26, the second drive lever 29, the first driven lever 32, and the arm head 33 have a length from the first axis L1 (second axis L2) to the third axis L3, and from the fourth axis L4 to the fifth. It connects so that the length to the axis line L5 may become the same.
  • the first drive lever 26, the second drive lever 29, the first driven lever 32, and the arm head 33 have a length from the third axis L3 to the fourth axis L4, and the first axis L1 (second axis L2) to the fifth. It connects so that the length to the axis line L5 may become the same.
  • first drive lever 26 and the arm head 33 are kept parallel, and the second drive lever 29 and the first driven lever 32 are kept parallel.
  • the first drive lever 26 and the second drive lever 29, the 1st driven lever 32, and the arm head 33 comprise the link mechanism of a substantially parallelogram shape.
  • the fifth axis L5 is a fulcrum when the passenger-side wiper arm 35 operates.
  • the passenger-side wiper arm 35 is rotated about the fifth axis L5 by the driving force of the first motor 11 to windshield glass. Reciprocates on 1.
  • the second motor 12 passes the fifth axis L5 through a substantially parallelogram link mechanism including the first drive lever 26, the second drive lever 29, the first driven lever 32, and the arm head 33.
  • the windshield glass 1 is moved more than in the case of FIGS.
  • the passenger side wiper arm 35 is apparently extended. Accordingly, when the second motor 12 is operated together with the first motor 11, the passenger side wiper blade 36 wipes the wiping range Z2.
  • the fifth axis L5 starts from the position shown in FIGS. 2, 7, and 8 (hereinafter referred to as “first position”). It does n’t move. Accordingly, the passenger side wiper arm 35 operates between the lower inversion position P2P and the upper inversion position P1P while drawing a substantially arc-shaped locus around the fifth axis L5 whose position does not change, and the passenger seat side wiper blade 36 The substantially fan-shaped wiping range Z1 is wiped.
  • the wiping range Z2 is wiped when the passenger seat wiper blade 36 moves from the lower inversion position P2P to the upper inversion position P1P.
  • the first motor 11 and the second motor 12 are each controlled.
  • the first motor 11 and the second motor 12 are respectively controlled so as to wipe the wiping range Z1 when the passenger seat wiper blade 36 reversed at the upper reversing position P1P moves toward the lower reversing position P2P.
  • the wiping range Z2 is wiped in the forward movement and the wiping range Z1 is wiped in the backward movement.
  • the wiping range Z1 is wiped in the forward movement and the wiping range Z2 is wiped in the backward movement.
  • a wide range of windshield glass 1 can be wiped off.
  • the wiping range Z2 may be wiped at the time of forward movement and backward movement.
  • the driver-seat-side wiper arm 17 and the driver-seat-side wiper blade 18 only operate around the driver-seat-side pivot shaft 15 according to the rotation of the first motor 11.
  • the operation of the passenger side wiper blade 36 will be described in detail.
  • FIG. 2 shows a state in which the passenger-side wiper blade 36 is positioned at the lower inversion position P2P, and the passenger-side wiper arm 35 is in the stop position.
  • the first output shaft 11A of the first motor 11 is rotated in the rotation direction CC1 shown in FIG.
  • the first drive lever 26 starts rotating
  • the passenger seat side wiper arm 35 starts rotating around the fifth axis L5.
  • the second output shaft 12A of the second motor 12 also starts to rotate in the rotational direction CC2 shown in FIG.
  • the rotation in the rotation direction CC1 of the first output shaft 11A and the rotation in the rotation direction CC2 of the second output shaft 12A are defined as positive rotations in the respective output shafts.
  • FIG. 4 shows a state where the passenger-side wiper blade 36 wipes the windshield glass 1 halfway (approximately 1/4 of the forward travel).
  • the driving force generated by the rotation of the second motor 12 in the rotation direction CC ⁇ b> 2 is transmitted to the second drive lever 29.
  • the second drive lever 29 to which the driving force of the second motor 12 is transmitted operates in the operation direction CW3, and the fifth axis L5, which is a fulcrum of the passenger seat side wiper arm 35, is located above the passenger seat side of the windshield glass 1. Move towards.
  • FIG. 5 shows that when the first output shaft 11A is rotated to an intermediate rotation angle between 0 ° and the first predetermined angle, the first drive lever 26 is further rotated, and the front passenger side wiper blade 36 is in the lower inverted position. This shows a case where a substantially intermediate point of the stroke (forward stroke) between P2P and the upper reverse position P1P is reached.
  • the second output shaft 12A of the second motor 12 is also rotated to the second predetermined rotation angle in the rotation direction CC2 shown in FIG.
  • the fifth axis L5 which is the fulcrum of the passenger-side wiper arm 35, is connected to the second drive crank arm 14, the third connecting rod 31, the second The passenger seat side swing lever 28 and the second drive lever 29 are lifted to the uppermost position (second position).
  • the front end portion of the passenger seat side wiper blade 36 is moved to a position near the upper corner of the windshield glass 1 on the passenger seat side, as shown in FIG.
  • the intermediate rotation angle described above is about half of the first predetermined rotation angle, but is set individually according to the shape of the windshield glass 1 and the like.
  • the second position is a position at which the fifth axis L5 is disposed at the uppermost position in each magnification.
  • the second position is determined when the first output shaft 11A is between 0 ° and the first predetermined angle when the passenger-side wiper blade wipes a range wider than the wiping range Z1 (for example, the wiping range Z2). This is the position at which the fifth axis L5 is arranged when rotated to the intermediate rotation angle.
  • FIG. 6 shows that when the first drive lever 26 is further rotated, the passenger-side wiper blade 36 reaches approximately 3/4 of the stroke (forward stroke) between the lower inversion position P2P and the upper inversion position P1P. Shows the case.
  • the rotation direction of the first output shaft 11A of the first motor 11 is the same as that of FIGS. 4 and 5, but the second output shaft 12A of the second motor 12 is opposite to the case of FIGS. It rotates in the rotation direction CW2 (reverse rotation).
  • the second drive lever 29 operates in the operation direction CC3
  • the fifth axis L5 which is a fulcrum of the passenger seat side wiper arm 35, is moved downward from the second position.
  • the front passenger side wiper blade 36 moves on the windshield glass 1 while wiping the wiping range Z2 while drawing the locus indicated by the broken line above the wiping range Z2 shown in FIG.
  • FIG. 7 shows a case where the first output shaft 11A of the first motor 11 rotates forward to the first predetermined rotation angle and the second output shaft 12A of the second motor 12 rotates reversely at the second predetermined rotation angle. Yes. Since the rotation angle of the first output shaft 11A of the first motor 11 in the forward rotation is maximized, the driver seat side wiper arm 17 and the driver seat side wiper blade 18 reach the upper inversion position P1D. Further, the second output shaft 12A of the second motor 12 is reversed at the second predetermined rotation angle from the state shown in FIG. 5 (the state where the second output shaft 12A has reached the second predetermined rotation angle by forward rotation).
  • the fifth axis L5 which is the fulcrum of the passenger-side wiper arm 35, is at the first position, which is the position before the second output shaft 12A of the second motor 12 shown in FIG. I'm back.
  • the passenger seat side wiper arm 35 and the passenger seat side wiper blade 36 reach the same upper inversion position P1P as the wiping range Z1 when the second motor 12 is not driven.
  • FIG. 8 shows a state in which the driver's seat side wiper arm 17 and the driver's seat side wiper blade 18 and the passenger's seat side wiper arm 35 and the passenger's seat side wiper blade 36 move from the upper inverted positions P1D and P1P to the lower inverted positions P2D and P2P.
  • the state (return stroke) is shown.
  • the first output shaft 11A of the first motor 11 rotates in the reverse direction, and rotates in the rotation direction CW1 in the reverse direction to the case of FIGS.
  • the second output shaft 12A of the second motor 12 does not rotate, and therefore the fifth axis L5, which is a fulcrum of the passenger seat side wiper arm 35, does not move from the first position, so the first output shaft 11A of the first motor 11 does not move.
  • the passenger seat side wiper arm 35 draws a substantially arc-shaped locus.
  • the passenger side wiper blade 36 connected to the front end of the passenger side wiper arm 35 wipes the wiping range Z1.
  • FIG. 9 is a circuit diagram schematically showing a circuit of the wiper system 100 according to the present embodiment. As shown in FIG. 9, the wiper system 100 includes a control circuit 52 and a drive circuit 56.
  • control circuit 52 includes the microcomputer 58 and the memory 60.
  • the microcomputer 58 includes a wiper switch 50, a direction indicator switch 54, a washer switch 62, a vehicle ECU 90 (not shown), A rain sensor 76, a vehicle speed sensor 92, an in-vehicle camera 94, a GPS device 96, and a steering angle sensor 98 are connected to each other.
  • the drive circuit 56 includes a first pre-driver 104 and a first motor drive circuit 108 for driving the first motor 11, and a second pre-driver 106 and a second motor drive circuit 110 for driving the second motor 12. ing.
  • the drive circuit 56 includes a relay drive circuit 78, an FET drive circuit 80, and a washer motor drive circuit 57 for driving the washer motor 64.
  • the microcomputer 58 of the control circuit 52 rotates the first motor 11 via the second pre-driver 106 by turning on and off the switching elements constituting the first motor driving circuit 108 via the first pre-driver 104.
  • the rotation of the second motor 12 is controlled by turning on and off the switching elements of the two-motor drive circuit 110.
  • the microcomputer 58 controls the rotation of the washer motor 64 by controlling the relay drive circuit 78 and the FET drive circuit 80.
  • the first motor drive circuit 108 and the second motor drive circuit 110 each include four switching elements.
  • the switching element is, for example, an N-type FET (field effect transistor).
  • the first motor drive circuit 108 includes FETs 108A to 108D.
  • the FET 108 ⁇ / b> A has a drain connected to the power supply (+ B), a gate connected to the first pre-driver 104, and a source connected to one end of the first motor 11.
  • the FET 108 ⁇ / b> B has a drain connected to the power supply (+ B), a gate connected to the first pre-driver 104, and a source connected to the other end of the first motor 11.
  • the FET 108C has a drain connected to one end of the first motor 11, a gate connected to the first pre-driver 104, and a source grounded.
  • the FET 108D has a drain connected to the other end of the first motor 11, a gate connected to the first pre-driver 104, and a source grounded.
  • the first pre-driver 104 controls driving of the first motor 11 by switching a control signal supplied to the gates of the FETs 108A to 108D in accordance with a control signal from the microcomputer 58. That is, when the first pre-driver 104 rotates the first output shaft 11A of the first motor 11 in a predetermined direction (forward rotation), the first pre-driver 104 turns on the set of the FET 108A and the FET 108D and the first output of the first motor 11 When rotating the shaft 11A in the direction opposite to the predetermined direction (reverse rotation), the set of the FET 108B and the FET 108C is turned on. Further, the first pre-driver 104 performs PWM for intermittently turning on and off the FET 108A and the FET 108D based on a control signal from the microcomputer 58.
  • the first pre-driver 104 controls the rotational speed of the first motor 11 in the forward rotation by changing the duty ratio related to the on / off of the FET 108A and the FET 108D by PWM. If the duty ratio is increased, the effective value of the voltage applied to the terminal of the first motor 11 during forward rotation is increased, and the rotation speed of the first motor 11 is increased.
  • the first pre-driver 104 controls the rotational speed in the reverse rotation of the first motor 11 by changing the duty ratio related to on / off of the FET 108B and the FET 108C by PWM. If the duty ratio increases, the effective value of the voltage applied to the terminal of the first motor 11 during reverse rotation increases, and the rotation speed of the first motor 11 increases.
  • the second motor drive circuit 110 includes FETs 110A to 110D.
  • the FET 110 ⁇ / b> A has a drain connected to the power supply (+ B), a gate connected to the second pre-driver 106, and a source connected to one end of the second motor 12.
  • the FET 110 ⁇ / b> B has a drain connected to the power supply (+ B), a gate connected to the second pre-driver 106, and a source connected to the other end of the second motor 12.
  • the FET 110C has a drain connected to one end of the second motor 12, a gate connected to the second pre-driver 106, and a source grounded.
  • the FET 110D has a drain connected to the other end of the second motor 12, a gate connected to the second pre-driver 106, and a source grounded.
  • the second pre-driver 106 controls the driving of the second motor 12 by switching the control signal supplied to the gates of the FETs 110A to 110D in accordance with the control signal from the microcomputer 58. That is, when the second pre-driver 106 rotates the second output shaft 12A of the second motor 12 in a predetermined direction (forward rotation), the second pre-driver 106 turns on the set of the FET 110A and the FET 110D and outputs the second output of the second motor 12. When rotating the shaft 12A in the direction opposite to the predetermined direction (reverse rotation), the set of the FET 110B and the FET 110C is turned on.
  • the second pre-driver 104 controls the rotational speed of the second motor 12 by performing PWM like the first pre-driver 104 described above based on the control signal from the microcomputer 58.
  • a two-pole sensor magnet 112A is fixed to the output shaft end portion 112 of the first output shaft 11A in the speed reduction mechanism of the first motor 11, and a first absolute angle sensor 114 is provided so as to face the sensor magnet 112A. ing.
  • a two-pole sensor magnet 116A is fixed to the output shaft end portion 116 of the second output shaft 12A in the speed reduction mechanism of the second motor 12, and a second absolute angle sensor 118 is provided so as to face the sensor magnet 116A. ing.
  • the first absolute angle sensor 114 detects the magnetic field of the sensor magnet 112A
  • the second absolute angle sensor 118 detects the magnetic field of the sensor magnet 116A, and outputs a signal corresponding to the detected magnetic field strength.
  • the microcomputer 58 determines the rotational angle and rotational position of each of the first output shaft 11A of the first motor 11 and the second motor 12 based on the signals output from the first absolute angle sensor 114 and the second absolute angle sensor 118, respectively. The rotation direction and the rotation speed are calculated.
  • the position between the lower inversion position P2D and the upper inversion position P1D of the driver seat side wiper blade 18 can be calculated. Further, from the rotation angle of the second output shaft 12A of the second motor 12, the degree of apparent extension (degree of enlargement) of the passenger-side wiper arm 35 can be calculated.
  • the microcomputer 58 determines the rotation angle of the second output shaft 12A based on the position between the lower inversion position P2D and the upper inversion position P1D of the driver seat wiper blade 18 calculated from the rotation angle of the first output shaft 11A. By controlling the above, the operations of the first motor 11 and the second motor 12 are synchronized.
  • the position (or the rotation angle of the first output shaft 11A) between the lower inversion position P2D and the upper inversion position P1D of the driver seat side wiper blade 18 and the rotation angle of the second output shaft 12A is stored in advance, and the rotation angle of the second output shaft 12A is controlled according to the rotation angle of the first output shaft 11A according to the map.
  • the washer motor drive circuit 57 includes a relay unit 84 incorporating two relays RLY1 and RLY2, and two FETs 86A and 86B.
  • the relay coils of the relays RLY1 and RLY2 of the relay unit 84 are connected to the relay drive circuit 78, respectively.
  • the relay drive circuit 78 switches the relays RLY1 and RLY2 on and off (excitation / excitation stop of the relay coil). When the relay coils are not excited, the relays RLY1 and RLY2 maintain the state in which the common terminals 84C1 and 84C2 are connected to the first terminals 84A1 and 84A2 (off state), respectively, and the relay coils are excited.
  • the common terminals 84C1 and 84C2 are switched to the state of connecting to the second terminals 84B1 and 84B2, respectively.
  • the common terminal 84C1 of the relay RLY1 is connected to one end of the washer motor 64, and the common terminal 84C2 of the relay RLY2 is connected to the other end of the washer motor 64.
  • the first terminals 84A1 and 84A2 of the relays RLY1 and RLY2 are connected to the drain of the FET 86B, and the second terminals 84B1 and 84B2 of the relays RLY1 and RLY2 are connected to the power source (+ B).
  • the FET 86B has a gate connected to the FET drive circuit 80 and a source grounded. The duty ratio related to the on / off of the FET 86B is controlled by the FET drive circuit 80.
  • An FET 86A is provided between the drain of the FET 86B and the power source (+ B). The FET 86A is provided for the purpose of using a parasitic diode for absorbing a surge without switching on and off because no control signal is input to the gate.
  • the relay driving circuit 78 and the FET driving circuit 80 control the driving of the washer motor 64 by switching on and off the two relays RLY1, RLY2 and the FET 86B. That is, when rotating the output shaft of the washer motor 64 in a predetermined direction (forward rotation), the relay drive circuit 78 turns on the relay RLY1 (relay RLY2 is off), and the FET drive circuit 80 turns on the FET 86B with a predetermined duty ratio. Let With the above control, the rotation speed of the output shaft of the washer motor 64 is controlled.
  • FIG. 10 shows an example of a second output shaft rotation angle map that defines the rotation angle of the second output shaft 12A according to the rotation angle of the first output shaft 11A in the present embodiment.
  • Figure horizontal axis 10 is a first output shaft rotation angle theta A is the rotational angle of the first output shaft 11A
  • the vertical axis is the second output shaft rotation angle
  • theta B is the rotational angle of the second output shaft 12A
  • the maximum value is the second predetermined rotation angle ⁇ 2 .
  • the second output shaft rotation angle ⁇ B corresponding to the first output shaft rotation angle ⁇ A detected by the first absolute angle sensor 114 is calculated, and the calculated second output shaft rotation angle ⁇ B is obtained.
  • the rotation angle of the second output shaft 12A of the second motor 12 is controlled.
  • FIG. 10 shows a curve 190, a curve 192, and a curve 194.
  • a curve 190 represents an ideal case where the rotation angle of the second output shaft 12A changes without delay in accordance with the rotation angle of the first output shaft 11A.
  • the second output shaft rotation angle ⁇ B with respect to the first output shaft rotation angle ⁇ A shown by the curve 190 is set as a command value for rotation control of the second motor 12. 10 and the curves 192 and 194 to be described later, the first output shaft rotation angle ⁇ A reaches the first predetermined rotation angle ⁇ 1 , that is, the passenger-side wiper blade 36
  • the second output shaft rotation angle ⁇ B when it reaches the upper inversion position P1P is set to show an angle ⁇ 3 larger than 0 °.
  • the first output shaft rotation angle ⁇ A is not necessarily the same as the curve 190 indicating the ideal value due to the delay in driving force transmission by the link mechanism, the delay in control processing due to the time required for the operation of the elements in the control circuit 52, and the like. Does not correspond to the second output shaft rotation angle ⁇ B.
  • the control timing of the second output shaft rotation angle ⁇ B is expressed by a curve 190. It may be earlier than shown.
  • the second on the curve 190 corresponding to the angle obtained by adding the correction value to the detected first output shaft rotation angle ⁇ A.
  • the actual first The control timing of the second output shaft rotation angle ⁇ B is earlier than the control timing indicated by the one output shaft rotation angle ⁇ A.
  • the first output shaft is used to advance the control timing of the second output shaft rotation angle ⁇ B by preempting the time series change of the first output shaft rotation angle ⁇ A as described above. This is expressed as an advance angle of the rotation angle ⁇ A.
  • the correction value is a numerical value for optimizing the control timing of the second output shaft rotation angle ⁇ B.
  • Correction value not only varies depending on the specifications or the like of the wiper device 2, so also varies with a change in the first output shaft rotation angle theta A, simulation during designing, the first output shaft through such test using actual equipment Specifically, it is determined every time the rotation angle ⁇ A changes.
  • a curve 192 in FIG. 10 shows the second output shaft rotation angle corresponding to the detected first output shaft rotation angle ⁇ A during the forward movement in which the passenger-side wiper arm 35 moves from the lower inversion position P2P to the upper inversion position P1P.
  • An example of a map in which the timing of control of ⁇ B is earlier than in the case of the curve 190 is shown.
  • a curve 192 is the first curve on the curve 190 with respect to the angle obtained by adding a correction value for optimizing the control timing of the second output shaft rotation angle ⁇ B to the detected first output shaft rotation angle ⁇ A.
  • the two output shaft rotation angles ⁇ B are plotted against the detected first output shaft rotation angle ⁇ A.
  • the correction values are such that when the first output shaft rotation angle ⁇ A is 0 °, that is, when the passenger seat wiper blade 36 is positioned at the lower inversion position P2P, the first output shaft rotation angle ⁇ A is the first predetermined value.
  • the rotation angle ⁇ 1 that is, the case where the passenger seat side wiper blade 36 is located at the upper inversion position P1P, it is determined to be “0”.
  • the correction value is set to “0” when the passenger-side wiper blade 36 is located at the lower inversion position P2P and the upper inversion position P1P.
  • FIG. 11 is a schematic diagram illustrating an example of a correction value for obtaining the curve 192 from the curve 190.
  • the correction value shown in FIG. 11 indicates “0” when the passenger-side wiper blade 36 is located at the lower inversion position P2P and the upper inversion position P1P, and the correction value is maximum during the wiping operation of the passenger-side wiper blade 36.
  • the value ⁇ C is indicated.
  • the extension / contraction mechanism of the passenger-side wiper arm 35 has not started extending / contracting, so the correction value is set to “0”. deep.
  • the correction value is quickly increased to the maximum value ⁇ C, and the passenger seat side wiper blade 36 is moved between the two inversion positions.
  • the maximum value ⁇ C is maintained, and the control timing of the second output shaft rotation angle ⁇ B is optimized.
  • the correction value is quickly reduced.
  • the correction value is “0”.
  • the expansion / contraction mechanism is an example of a position changing mechanism according to the technique of the present disclosure.
  • the curve 190 is appropriately advanced with the above-described correction value for the first output shaft rotation angle ⁇ A to define the curve 192.
  • a curve 194 in FIG. 10 shows the second output shaft rotation corresponding to the detected first output shaft rotation angle ⁇ A when the passenger-side wiper arm 35 moves backward from the upper reverse position and P1P to the lower reverse position P2P.
  • An example of the map in which the control timing of the angle ⁇ B is made earlier than the curve 190 is shown.
  • the rotation angle of the first output shaft 11A is reduced from the first predetermined rotation angle theta 1, passenger side wiper lower turning position P2P
  • the blade 36 reaches 0 °. Therefore, at the time of backward movement, the map shown in FIG. 10 is applied from the first predetermined rotation angle ⁇ 1 toward 0 °.
  • the word “advance angle” expresses the concept of accelerating the timing of control. Therefore, the detected first output is detected at the time of reverse movement in which the first output shaft rotation angle ⁇ A decreases with time. so that the axial rotation angle theta a becomes a second output shaft rotational angle theta second output shaft rotational angle theta B on the curve 190 with respect to the angle obtained by subtracting the correction value for optimizing the timing of the control of B Further, by controlling the rotation angle of the second output shaft, it is possible to accelerate the extension / convergence timing of the passenger-side wiper arm 35. Therefore, in step 124, to advance by subtracting the correction values indicated by the first output shaft rotation angle theta A detected in Fig.
  • this embodiment expresses that the control timing of the second output shaft rotation angle ⁇ B is earlier than the timing of the first output shaft rotation angle ⁇ A.
  • the correction value not only varies depending on the specifications of the wiper device 2 but also varies with the change in the first output shaft rotation angle ⁇ A , so the first correction value is obtained through simulation at the time of design, tests using actual devices, and the like. Specifically, it is determined every time the output shaft rotation angle ⁇ A changes.
  • a curve 194 in FIG. 10 shows a second output shaft rotation angle corresponding to the detected first output shaft rotation angle ⁇ A when the passenger seat side wiper arm 35 moves backward from the upper inversion position P1P to the lower inversion position P2P.
  • An example of a map in which the timing of control of ⁇ B is earlier than in the case of the curve 190 is shown.
  • a curve 194 shows the second output shaft rotation angle ⁇ B on the curve 190 corresponding to the angle obtained by subtracting the correction value from the detected first output shaft rotation angle ⁇ A as the detected first output shaft. It is plotted against the rotation angle ⁇ A.
  • the correction value is quickly increased to the maximum value ⁇ C
  • the control timing of the output shaft rotation angle ⁇ B is optimized.
  • the correction value is quickly reduced, and when the passenger seat side wiper blade 36 reaches the lower inversion position P2P, the correction value is “0”.
  • the second output shaft for the same first output shaft rotation angle theta A
  • the angle ⁇ B is greater on the curve 194 than on the curve 190.
  • the curve 190 is appropriately advanced with respect to the first output shaft rotation angle ⁇ A to define the curve 194, whereby the first output is obtained. It becomes possible to correct the synchronization delay of the rotation angle of the second output shaft 12A with respect to the rotation angle of the shaft 11A.
  • FIG. 12 is a flowchart showing an example of the rotation angle advance processing of the wiper device 2 in the present embodiment.
  • FIG. 12 shows that the passenger-side wiper blade 36 is wiped from the lower reversing position P2P to the upper reversing position P1P, and is wiped from the upper reversing position P1P to the lower reversing position P2P. This shows a case where a normal wiping operation is performed at the time of reverse movement.
  • step 110 the rotation angle of the first output shaft 11A (first output shaft rotation angle ⁇ A ) and the rotation direction are detected using the first absolute angle sensor 114.
  • step 112 it is determined whether or not the forward movement is started from the rotation direction. If the determination is affirmative, the procedure proceeds to step 114, and if the determination is negative, the process returns.
  • the first absolute angle sensor 114 is an example of a rotation angle detection unit according to the technique of the present disclosure.
  • step 114 to advance by adding the correction value of 11 to the first output shaft rotation angle theta A detected by the first absolute angle sensor 114.
  • step 116 the second output shaft rotation angle ⁇ B corresponding to the advanced first output shaft rotation angle ⁇ A is calculated, and the rotation angle of the second output shaft 12A becomes the second output shaft rotation angle ⁇ B.
  • the second output shaft 12A is controlled to return.
  • step 114 when the correction value is added to the first output shaft rotation angle ⁇ A and advanced, the second output shaft rotation angle ⁇ B is calculated using the curve 190 in FIG. Note that the processing in step 114 and step 116 may use the curve 192 in FIG. In such a case, the second output shaft rotation angle ⁇ B is calculated by applying the curve 192 of FIG. 10 to the detected first output shaft rotation angle ⁇ A.
  • FIG. 12 shows the case where the enlarged wiping is performed during the forward movement and the normal wiping operation is performed during the backward movement. However, when the normal wiping operation is performed during the forward movement and the enlarged wiping is performed during the backward movement, it is shown in FIG. Do the same process.
  • FIG. 13 is a flowchart showing another example of the rotation angle advance processing of the wiper device 2 in the present embodiment.
  • Step 120 the first output shaft rotation angle ⁇ A and the rotation direction of the first output shaft are detected using the first absolute angle sensor 114.
  • step 122 it is determined whether or not the backward movement is started from the rotation direction. If the determination is affirmative, the procedure proceeds to step 124, and if the determination is negative, the process returns.
  • step 124 to advance by subtracting the correction value of FIG. 11 from the first output shaft rotation angle theta A detected. Since the correction value varies depending on the specification of the wiper device 2 and the like, it is specifically determined through a simulation at the time of design, a test using an actual machine, and the like.
  • step 126 the second output shaft rotation angle ⁇ B corresponding to the advanced first output shaft rotation angle ⁇ A is calculated and the process returns.
  • the second output shaft rotation angle ⁇ B is calculated using the curve 190 in FIG. Note that the processing in step 124 and step 126 may use the curve 194 in FIG. In such a case, the second output shaft rotation angle ⁇ B is calculated by applying the curve 194 of FIG. 10 to the detected first output shaft rotation angle ⁇ A , and the rotation angle of the second output shaft 12A is the second output. The second output shaft 12A is controlled so that the shaft rotation angle ⁇ B is obtained.
  • the passenger side by speeding up the rotation control timing of the second output shaft 12A corresponding to the rotation angle of the first output shaft detected by the first absolute angle sensor 114, the passenger side It is possible to reduce the delay in extension and convergence of the passenger-side wiper arm 135 that is synchronized with the reciprocation of the wiper arm 135.
  • the first output shaft 11A of the first motor 11 and the second output shaft 12A of the second motor 12 are controlled to be able to rotate forward and backward (reciprocating).
  • the present embodiment is limited to this. There is no.
  • one of the first output shaft 11A and the second output shaft 12A may rotate in one direction.
  • the rotation of the first output shaft 11A of the first motor 11 causes the driver-side wiper blade 18 and the passenger-side wiper blade 36 to move upside-down positions P1D and P1P and downside-inversion positions P2D and P2P.
  • the first motor 11 includes a “driver's seat side first motor” and a “passenger's seat side first motor”, and the driver seat side wiper blade 18 is moved down to the upper inversion position P1D by the rotation of the driver seat side first motor.
  • the structure may be such that the passenger seat side wiper blade 36 is moved between the upper inversion position P1P and the lower inversion position P2P by moving between the inversion position P2D and rotation of the first passenger seat side motor.
  • the driver-side wiper blade 18 and the passenger-side wiper blade 36 are structured not to overlap in the vehicle width direction at the lower inversion positions P2D and P2P.
  • the present invention is limited to this.
  • the driver seat side wiper blade 18 side of the passenger seat side wiper blade 36 may be set longer.
  • the length of the passenger seat side wiper blade 36 is set so that the driver seat side wiper blade 18 side of the passenger seat side wiper blade 36 overlaps the passenger seat side wiper blade 36 side of the driver seat side wiper blade 18. Also good. Thereby, when wiping the wiping range Z2 during the reciprocating motion, it is possible to reduce the non-wiping area that remains on the lower center side of the windshield glass.
  • the passenger seat-side wiper arm 35 (passenger seat-side wiper blade 36) is extended to the vicinity of the intermediate angle at the predetermined rotation angle of the first output shaft 11A, and from the vicinity of the intermediate angle to the predetermined rotation angle.
  • the passenger seat side wiper arm 35 (passenger seat side wiper blade 36) is controlled to be reduced, but the present invention is not limited to this.
  • the passenger seat side wiper arm 35 may be controlled to gradually extend.
  • the embodiment using the rotation angle of the first output shaft 11A of the first motor 11 and the rotation angle of the second output shaft 12A of the second motor 12 has been described.
  • the rotational position of the first output shaft 11A and the rotational position of the second output shaft 12A may be used.
  • the second output shaft rotation angle ⁇ B when it reaches has been set to ⁇ 3 , it is not limited to this.
  • the second output shaft rotation angle ⁇ B when the passenger seat side wiper blade 36 reaches the upper inversion position P1P may be set to 0 °.
  • the correction value is as shown in FIG. 11, but the present invention is not limited to this.
  • the correction value may be a constant that is not affected by the change in the first output shaft rotation angle ⁇ A. Control can be easily and quickly performed by adding a constant constant correction value to each of the first output shaft rotation angles ⁇ A from 0 ° to the first predetermined rotation angle ⁇ 1 .
  • a second embodiment of the technology of the present disclosure will be described.
  • the configuration of the vehicle wiper device according to the second embodiment is the same as the configuration of the vehicle wiper device according to the first embodiment, and a description thereof will be omitted.
  • the wiping locus on the front end side (vehicle upper side) of the passenger seat side wiper blade 36 intersects the wiping locus on the front end side (vehicle upper side) of the driver seat side wiper blade 18.
  • the V-shaped angle of the part tends to be an acute angle as compared with the case where the wiping range is not expanded.
  • a problem arises in that the liquid (rain water or the like) wiped out of the wiping range is more likely to sag on the wiping surface as the tip of the V-shaped intersection becomes sharper.
  • intersection where the wiping locus on the vehicle upper side of the passenger side wiper blade 36 intersects the wiping locus on the vehicle upper side of the driver seat side wiper blade 18 is simply referred to as an intersection.
  • intersection angle the angle formed by the wiping locus on the vehicle upper side of the driver-side wiper blade 18 and the wiping locus on the vehicle upper side of the passenger-side wiper blade 36 and the angle of the non-wiped side is referred to as an intersection angle.
  • the upper inversion position P1P is utilized by utilizing the fact that the wiping range of the passenger side wiper blade 36 can be changed.
  • the intersection angle is changed to an obtuse angle (the intersection angle is increased) to prevent rainwater from dripping.
  • the first motor 11 and the second motor 12 are controlled so that the crossing angle becomes an obtuse angle compared to the case where the passenger-side wiper arm 35 is not extended.
  • the wiping range of the passenger-side wiper blade 36 is expanded during the forward movement to increase the upper reversal position P1P (the first output shaft 11A is the upper reversing position). Since the second motor 12 is controlled to return to the reference position at an angle corresponding to P1P), the wiping range Z2 shown in FIGS. 14A and 14B is obtained.
  • the crossing angle tends to be an acute angle as compared with the wiping range Z1. Therefore, in order to prevent rainwater dripping at the intersection, the second motor 12 is not returned to the reference position at the upper reversing position P1P, and the wiping range is expanded to the upper reversing position P1P (the first output shaft 11A is at the upper position).
  • the second motor 12 (second output shaft 12A) is controlled so as to be moved (to an angle corresponding to the reverse position P1P). At this time, the passenger side wiper blade 36 moves along the wiping range Z2 '.
  • the crossing angle can be increased (oblique angle). Sagging can be suppressed.
  • control circuit 52 in order to prevent the rainwater from dripping at the intersection will be described more specifically.
  • the rotation angle ⁇ 2 of the second motor 12 increases with an increase in the rotation angle of the first motor 11, and the upper inversion position P1P and the lower inversion position P2P.
  • the rotation angle ⁇ 2 of the second motor 12 is determined in advance without returning to the reference position at the upper inversion position P1P.
  • the intersection angle can be increased (obtuse) to prevent rainwater dripping.
  • the predetermined rotation angle at the upper reversal position P1P is preferably an angle at which the intersection angle is maximum within the extension range of the passenger-side wiper arm 35 by the second motor 12.
  • the predetermined rotation angle is set individually according to the shape of the windshield glass 1 and the like.
  • the present embodiment has the effects of the first embodiment.
  • the present embodiment can further provide a vehicle wiper device that can suppress dripping of rainwater at the intersection of the wiping trajectories of each of the pair of wiper blades. More details are as follows.
  • the wiper device described in Japanese Patent Laid-Open No. 2000-25578 when the V-shaped angle at the intersection of the wiping locus of the driver's seat side wiper blade and the wiping locus of the passenger seat side wiper blade does not expand the wiping range. It becomes smaller (at an acute angle).
  • the angle of the V shape at the intersection is small (a sharp angle), there is a problem that rainwater wiped out of the wiping range is likely to drip.
  • This embodiment can solve the problem.
  • the speed at which the driver's seat wiper blade 18 and the passenger's seat wiper blade 36 are operated will be described as an example that can be selected from predetermined speeds. However, the speed can be changed steplessly. Good.
  • the wiping locus of the passenger seat side wiper blade 36 on the lower side of the vehicle does not overlap the wiping locus of the driver seat side wiper blade 18 by expanding the wiping range of the passenger seat side wiper blade 36.
  • An unwiping area will occur. Therefore, in order to eliminate the area that cannot be wiped, the wiper blade 36 at the time of forward movement and backward movement is described as different trajectories when expanding the wiping range, but the present invention is not limited to this.
  • the length of the wiper blade 36 on the passenger seat side is set so that there is no area that is not wiped when the wiping range is expanded, and the same wiping trajectory is obtained both during forward movement and during backward movement. You may control so that it may become wiping range Z2 '.
  • first output shaft 11A of the first motor 11 and the second output shaft 12A of the second motor 12 are controlled to be able to rotate forward and backward (reciprocating).
  • present invention is not limited to this. Absent.
  • one of the first output shaft 11A and the second output shaft 12A may rotate in one direction.
  • the rotation of the first output shaft 11A of the first motor 11 causes the driver-side wiper blade 18 and the passenger-side wiper blade 36 to move between the upper inversion positions P1D and P1P and the lower inversion positions P2D and P2P.
  • the first motor 11 includes a “driver's seat side first motor” and a “passenger's seat side first motor”, and the driver seat side wiper blade 18 is moved down to the upper inversion position P1D by the rotation of the driver seat side first motor.
  • the structure may be such that the passenger seat side wiper blade 36 is moved between the upper inversion position P1P and the lower inversion position P2P by moving between the inversion position P2D and rotation of the first passenger seat side motor.
  • the passenger seat side wiper arm 35 (passenger seat side wiper blade 36) is extended between the first output shaft 11A and the vicinity of the intermediate angle at the predetermined rotation angle, and from the intermediate angle to the predetermined rotation angle. While the control for reducing the passenger seat side wiper arm 35 (passenger seat side wiper blade 36) was performed in between, the present invention is not limited to this. For example, when the passenger seat side wiper blade 35 wipes from the lower inversion position P2P to the upper inversion position P1P (during forward wiping), the passenger seat side wiper arm 36 may be controlled to gradually extend.
  • the second motor 12 is controlled according to the rotation angle of the first motor 11, but the present invention is not limited to this.
  • the first motor 11 may be controlled according to the rotation angle of the second motor 12.
  • the embodiment using the rotation angle of the first output shaft 11A of the first motor 11 and the rotation angle of the second output shaft 12A of the second motor 12 has been described.
  • the rotational position of the first output shaft 11A and the rotational position of the second output shaft 12A may be used.
  • the wiping range may be changeable.
  • the position of the wiper arm wiping range is changed from the wiper arm wiping range Z1 (see FIG. 1) when the wiper arm wiping range position is not changed.
  • the wiper arm wiping range Z2 has a larger area.
  • the technology of the present disclosure is not limited to this.
  • the wiping range Z1 and the wiping range Z2 may be the same, and the wiping range Z2 may be smaller than the wiping range Z1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

La présente invention réduit le retard dans l'extension et la rétraction d'un bras d'essuie-glace, lesquelles sont synchronisées à un mouvement de va-et-vient du bras d'essuie-glace. Un micro-ordinateur (58) commande l'angle de rotation d'un arbre de sortie d'un second moteur (12) sur la base d'une carte d'angles de rotation dans laquelle la synchronisation de commande de rotation de l'arbre de sortie du second moteur (12) par rapport à l'angle de rotation d'un arbre de sortie d'un premier moteur (11) est accélérée, la carte d'angles de rotation étant stockée dans une mémoire (60), et sur la base de l'angle de rotation effectif de l'arbre de sortie du premier moteur (11). Le micro-ordinateur (58) amène ainsi l'arbre de sortie du second moteur (12) à tourner vers l'avant, et déplace une cinquième ligne d'axe L5, qui est le point de support d'un bras d'essuie-glace côté siège passager (35), vers un angle au-dessus du côté siège passager sur un pare-brise (1), pendant la rotation de l'arbre de sortie du premier moteur (11) vers l'avant et déplaçant un balai d'essuie-glace côté siège passager (36) d'une position inversée inférieure P2P à une position inversée supérieure P1P ; et le micro-ordinateur (58) fait tourner l'arbre de sortie du second moteur (12) en sens inverse pour ramener la position de la cinquième ligne d'axe L5 à sa position initiale jusqu'à ce que le balai d'essuie-glace côté siège passager (36) atteigne la position inversée supérieure P1P.
PCT/JP2017/000518 2016-01-14 2017-01-10 Dispositif essuie-glace pour véhicule et procédé de commande de dispositif essuie-glace pour véhicule WO2017122643A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2016-005532 2016-01-14
JP2016005532A JP2017124761A (ja) 2016-01-14 2016-01-14 車両用ワイパ装置及び車両用ワイパ制御プログラム
JP2016010043 2016-01-21
JP2016-010043 2016-01-21
JP2016-078996 2016-04-11
JP2016078996A JP6828263B2 (ja) 2016-01-21 2016-04-11 払拭範囲可変ワイパ装置及び払拭範囲可変ワイパ装置の制御方法

Publications (1)

Publication Number Publication Date
WO2017122643A1 true WO2017122643A1 (fr) 2017-07-20

Family

ID=59311788

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/000518 WO2017122643A1 (fr) 2016-01-14 2017-01-10 Dispositif essuie-glace pour véhicule et procédé de commande de dispositif essuie-glace pour véhicule

Country Status (1)

Country Link
WO (1) WO2017122643A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS474247B1 (fr) * 1967-11-30 1972-02-05
JPS61181745A (ja) * 1984-11-14 1986-08-14 アンドレ・ルロイ ワイパ装置
GB2227926A (en) * 1989-02-10 1990-08-15 Delco Prod Overseas Windscreen wiper assembly
JP2000006764A (ja) * 1998-06-18 2000-01-11 Jidosha Denki Kogyo Co Ltd ワイパモータおよびワイパ装置
JP2000095067A (ja) * 1998-09-22 2000-04-04 Denso Corp ワイパー装置
JP2009132167A (ja) * 2007-11-28 2009-06-18 Nissan Motor Co Ltd ワイパー駆動装置
JP2010264931A (ja) * 2009-05-18 2010-11-25 Mitsuba Corp 車両用ワイパ装置
WO2016203906A1 (fr) * 2015-06-17 2016-12-22 アスモ 株式会社 Dispositif d'essuie-glace de véhicule

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS474247B1 (fr) * 1967-11-30 1972-02-05
JPS61181745A (ja) * 1984-11-14 1986-08-14 アンドレ・ルロイ ワイパ装置
GB2227926A (en) * 1989-02-10 1990-08-15 Delco Prod Overseas Windscreen wiper assembly
JP2000006764A (ja) * 1998-06-18 2000-01-11 Jidosha Denki Kogyo Co Ltd ワイパモータおよびワイパ装置
JP2000095067A (ja) * 1998-09-22 2000-04-04 Denso Corp ワイパー装置
JP2009132167A (ja) * 2007-11-28 2009-06-18 Nissan Motor Co Ltd ワイパー駆動装置
JP2010264931A (ja) * 2009-05-18 2010-11-25 Mitsuba Corp 車両用ワイパ装置
WO2016203906A1 (fr) * 2015-06-17 2016-12-22 アスモ 株式会社 Dispositif d'essuie-glace de véhicule

Similar Documents

Publication Publication Date Title
JP6790688B2 (ja) 車両用ワイパ装置及び車両用ワイパ装置の制御方法
JP6623762B2 (ja) 車両ワイパ装置
JP6349120B2 (ja) ワイパシステム制御方法及びワイパシステム制御装置
WO2018110328A1 (fr) Dispositif d'essuie-glace de véhicule et procédé de commande de dispositif d'essuie-glace de véhicule
JP6891683B2 (ja) 車両用ワイパ装置
WO2017122643A1 (fr) Dispositif essuie-glace pour véhicule et procédé de commande de dispositif essuie-glace pour véhicule
JP6801678B2 (ja) 車両用ワイパ装置及び車両用ワイパ装置の制御方法
JP6891679B2 (ja) 車両用ワイパ装置
JP6828263B2 (ja) 払拭範囲可変ワイパ装置及び払拭範囲可変ワイパ装置の制御方法
JP6724376B2 (ja) 払拭範囲可変ワイパ装置及び払拭範囲可変ワイパ装置の制御方法
WO2017122825A1 (fr) Dispositif essuie-glace et procédé de commande de dispositif essuie-glace
JP2017124761A (ja) 車両用ワイパ装置及び車両用ワイパ制御プログラム
WO2017126526A1 (fr) Dispositif d'essuie-glace de véhicule et procédé de commande de dispositif d'essuie-glace de véhicule
JP6665680B2 (ja) 払拭範囲拡大ワイパ装置及び払拭範囲拡大ワイパ装置の制御方法
JP2017159800A (ja) 払拭範囲拡大ワイパ装置及び払拭範囲拡大ワイパ装置の制御方法
JP6769081B2 (ja) 払拭範囲拡大ワイパ装置及び払拭範囲拡大ワイパ装置の制御方法
JP2019018683A (ja) 車両用ワイパ装置
WO2017164182A1 (fr) Dispositif d'essuie-glace de véhicule et procédé pour commander un dispositif d'essuie-glace de véhicule
JP6724469B2 (ja) 払拭範囲可変ワイパ装置及び払拭範囲可変ワイパ装置の制御方法
JP6724382B2 (ja) 払拭範囲可変ワイパ装置及び払拭範囲可変ワイパ装置の制御方法
JP6724372B2 (ja) 車両用ワイパ装置及び車両用ワイパ制御プログラム
WO2017183560A1 (fr) Dispositif d'essuie-glace de véhicule et procédé de commande d'un dispositif d'essuie-glace de véhicule
JP6922484B2 (ja) 車両用ワイパ装置及び車両用ワイパ装置の制御方法
WO2017122826A1 (fr) Dispositif essuie-glace de véhicule et procédé de commande d'essuie-glace de véhicule
JP2019018756A (ja) 車両用ワイパ装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17738397

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17738397

Country of ref document: EP

Kind code of ref document: A1