JP2018086959A - Wiper device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wiper device capable of avoiding occurrence of overload of a wiper motor, even when a current sensor is in bad condition.SOLUTION: A wiper control device 10 controls energization to a wiper motor 18 so that wiper blades 28, 30 perform wiping operation between an upper inversion position P1 and a lower inversion position P2, When a wiper switch 50 is put on, and controls so that energization to the wiper motor 18 is stopped, when the wiper blades 28, 30 starting the wiping operation from one inversion position do not reach the other inversion position within a prescribed time.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a wiper device.

  A wiper device that wipes windshield glass with a wiper blade operates a wiper blade attached to the tip of a wiper arm by a wiper motor that rotates by receiving power from a vehicle battery.

  In general, the higher the load of a motor, the larger the current (motor current) flowing through the motor winding. For example, as shown in FIG. 5, after the wiper blades 128, 130 start the wiping operation from the upper reversal position P1 on the windshield glass 12, they reach the snow accumulation before reaching the lower reversal position P2 or the storage position P3. When the wiping operation is obstructed by the obstacle 82 such as the wiper motor 118, the wiper motor 118 is likely to be overloaded.

  Even if the wiping operation of the wiper blades 128, 130 is obstructed by the obstacle 82, when the output shaft 132 of the wiper motor 118 is to be rotated in the rotation direction 134, the winding of the wiper motor 118 has a power supply from the battery 80. A large current 84 flows, and in some cases, the electric system from the wiper motor 118 and the battery 80 to the wiper motor 118 may be damaged.

  Japanese Patent Application Laid-Open No. 2004-133867 discloses a technique for monitoring a change in motor current using a current sensor and consuming excessive current by heating a vehicle window when the motor current becomes excessive.

JP 2006-240550 A

  However, the technique disclosed in Patent Document 1 has a problem in that when the current sensor fails, it cannot be detected when the motor current becomes excessive.

  The present invention has been made in view of the above, and an object of the present invention is to provide a wiper device that can avoid an overload of a wiper motor even when a current sensor is malfunctioning.

  In order to solve the above problem, a wiper device according to claim 1 controls a wiper motor that operates a wiper blade and energization of the wiper motor so that the wiper blade performs a wiping operation when a wiper switch is on. At the same time, during the energization of the wiper motor, if the wiper blade does not reach the predetermined second position from the predetermined first position within a predetermined time, the energization to the wiper motor is stopped. And a control unit.

  According to this wiper device, when the wiper blade that started the wiping operation from the predetermined first position does not reach the predetermined second position within a predetermined time, the wiping operation is inhibited by an obstacle. Regardless, stop energizing the wiper motor. As a result, the wiper motor is prevented from being overloaded even when the current sensor is malfunctioning.

  The wiper device according to claim 2 is the wiper device according to claim 1, wherein the control unit is turned on again after the ignition switch of the vehicle is turned off after stopping the energization of the wiper motor. When the wiper switch is on, the energization of the wiper motor is resumed, and the wiping operation from the first predetermined position to the second predetermined position is resumed.

  According to this wiper device, obstacles on the windshield glass can be eliminated by restarting the stopped wiping operation.

  According to a third aspect of the present invention, in the wiper device according to the first aspect, in accordance with a reset signal transmitted from the vehicle-side control device, energization of the wiper motor is resumed, and the wiper device starts from the predetermined first position. Control is performed so that the wiping operation toward the predetermined second position is resumed.

  According to this wiper device, obstacles on the windshield glass can be eliminated by restarting the control unit according to the ON state of the ignition switch.

  A wiper device according to a fourth aspect of the present invention is the wiper device according to the first aspect, wherein the control unit stops operation according to a sleep signal transmitted from the vehicle-side control device, and is wake-up transmitted from the vehicle-side control device. In accordance with the up signal, the energization to the wiper motor is resumed, and control is performed so that the wiping operation from the predetermined first position to the predetermined second position is resumed.

  According to this wiper device, the obstacle on the windshield glass can be eliminated by activating the control unit by the wake-up signal transmitted in accordance with the ignition switch being turned on.

  According to a third aspect of the present invention, in the wiper device according to the second aspect, the control unit does not reach the predetermined second position after the controller restarts energization of the wiper motor. In this case, control is performed so that energization of the wiper motor is stopped again.

  According to this wiper device, when the wiper blade does not reach the predetermined second position after the wiping operation is resumed, the energization is stopped and the wiper motor is prevented from being overloaded.

  The wiper device according to claim 4 is the wiper device according to any one of claims 1 to 3, wherein the predetermined first position is one reversal position that reverses the wiping operation, The predetermined second position is the other reversal position where the wiping operation is reversed.

  According to this wiper device, it is possible to prevent the wiper motor from being overloaded when the wiping operation is hindered by an obstacle present between the two inversion positions.

  A wiper device according to a fifth aspect of the invention is the wiper device according to any one of the first to fourth aspects, further comprising a rotation angle sensor that detects a rotation angle of an output shaft of the wiper motor. The wiping operation of the wiper blade is controlled based on the rotation angle detected by the rotation angle sensor.

  According to this wiper device, the position of the wiper blade is calculated from the rotation angle of the output shaft of the wiper motor, and it can be determined whether or not the wiper blade has reached the other reverse position.

It is the schematic which shows an example of a structure of the wiper apparatus which concerns on embodiment of this invention. It is a block diagram which shows the outline of an example of a structure of the wiper control apparatus which concerns on embodiment of this invention. It is explanatory drawing which showed the case where the wiping operation | movement was obstruct | occluded by the obstruction on the passenger seat side of the wiper apparatus which concerns on embodiment of this invention, (A) is immediately after a wiper blade started wiping operation from an upper inversion position (B) shows a state in which the wiper blade or wiper arm on the passenger seat side interferes with the obstacle. It is the flowchart which showed an example of the process of the wiper apparatus which concerns on embodiment of this invention. After the wiper blade starts the wiping operation from the upper reversal position on the windshield glass, the explanatory diagram showing the case where the wiping operation is obstructed by an obstacle such as a snow pool before reaching the lower reversal position or the storage position It is.

  FIG. 1 is a schematic diagram illustrating an example of a configuration of a wiper device 100 according to the present embodiment. The wiper device 100 is, for example, for wiping the windshield glass 12 provided in a vehicle such as a passenger car, and includes a pair of wipers 14 and 16, a wiper motor 18, a link mechanism 20, and a wiper control device 10. And.

  The wipers 14 and 16 include wiper arms 24 and 26 and wiper blades 28 and 30, respectively. The base end portions of the wiper arms 24 and 26 are respectively fixed to pivot shafts 42 and 44 described later, and the wiper blades 28 and 30 are respectively fixed to the distal end portions of the wiper arms 24 and 26.

  In the wipers 14 and 16, the wiper blades 28 and 30 reciprocate on the windshield glass 12 as the wiper arms 24 and 26 operate, and the wiper blades 28 and 30 wipe the windshield glass 12.

  The wiper motor 18 has an output shaft 32 that can rotate forward and backward via a speed reduction mechanism 52 mainly composed of a worm gear. The link mechanism 20 includes a crank arm 34, a first link rod 36, a pair of pivot levers 38 and 40, a pair of pivot shafts 42 and 44, and a second link rod 46.

  One end side of the crank arm 34 is fixed to the output shaft 32, and the other end side of the crank arm 34 is operably connected to one end side of the first link rod 36. The other end side of the first link rod 36 is operatively connected to a position near the end different from the end having the pivot shaft 42 of the pivot lever 38, and the end of the pivot lever 38 having the pivot shaft 42 is connected to the end of the first link rod 36. Both ends of the second link rod 46 are operably connected to different ends and the end of the pivot lever 40 corresponding to the end of the pivot lever 38.

  The pivot shafts 42 and 44 are operatively supported by a pivot holder (not shown) provided on the vehicle body, and ends of the pivot levers 38 and 40 having the pivot shafts 42 and 44 are interposed via the pivot shafts 42 and 44. The wiper arms 24 and 26 are fixed.

  In the wiper device 100 according to the present embodiment, when the output shaft 32 is rotated forward and backward at a rotation angle θ1 within a predetermined range, the rotational force of the output shaft 32 is transmitted to the wiper arms 24 and 26 via the link mechanism 20. As the wiper arms 24 and 26 reciprocate, the wiper blades 28 and 30 reciprocate between the lower inversion position P2 and the upper inversion position P1 on the windshield glass 12. The value of θ1 may take various values depending on the configuration of the link mechanism of the wiper apparatus 100, but is 140 ° as an example in the present embodiment.

  In the wiper device 100 according to the present embodiment, as shown in FIG. 1, when the wiper blades 28 and 30 are positioned at the storage position P3, the crank arm 34 and the first link rod 36 are linear. It is configured to be made.

  The storage position P3 is provided below the lower inversion position P2. When the output shaft 32 rotates at the rotation angle θ2 from the state where the wiper blades 28 and 30 are in the lower inversion position P2, the wiper blades 28 and 30 operate to the storage position P3. The value of θ2 can take various values depending on the configuration of the link mechanism of the wiper device, etc., but in this embodiment, it is 10 ° as an example.

  When θ2 is “0”, the lower inversion position P2 coincides with the storage position P3, and the wiper blades 28 and 30 are stopped and stored at the lower inversion position P2.

  A wiper control device 10 for controlling the rotation of the wiper motor 18 is connected to the wiper motor 18. The wiper control device 10 according to the present embodiment controls the rotation speed of the wiper motor 18 based on the detection result of the rotation angle sensor 54 that detects the rotation speed and rotation angle of the output shaft 32 of the wiper motor 18. The rotation angle sensor 54 is provided in the speed reduction mechanism 52 of the wiper motor 18 and detects a magnetic field (magnetic force) of a sensor magnet that rotates in conjunction with the output shaft 32 by converting it into a current.

  Since the wiper motor 18 according to the present embodiment has the speed reduction mechanism 52 as described above, the rotation speed and rotation angle of the output shaft 32 are not the same as the rotation speed and rotation angle of the wiper motor main body. However, in the present embodiment, since the wiper motor main body and the speed reduction mechanism 52 are inseparably configured, hereinafter, the rotation speed and rotation angle of the output shaft 32 are regarded as the rotation speed and rotation angle of the wiper motor 18. .

  The wiper control device 10 can calculate the position of the wiper blades 28 and 30 on the windshield glass 12 from the rotation angle of the output shaft 32 detected by the rotation angle sensor 54, and the rotation speed of the output shaft 32 depends on the position. The rotational speed of the wiper motor 18 is controlled so as to change.

  The wiper control device 10 is connected to a wiper switch 50 that turns on or off the electric power supplied to the wiper motor 18 from a vehicle battery as a power source. The wiper switch 50 includes a low-speed operation mode selection position for operating the wiper blades 28 and 30 at a low speed, a high-speed operation mode selection position for operation at a high speed, an intermittent operation mode selection position for intermittent operation at a constant period, and storage (stop). The mode selection position can be switched. Further, a rotation speed command signal corresponding to the selected position of each mode is output to the wiper control device 10.

  When a signal output from the wiper switch 50 according to the selected position of each mode is input to the wiper control device 10, the wiper control device 10 performs the control corresponding to the output signal from the wiper switch 50.

  FIG. 2 is a block diagram schematically illustrating an example of the configuration of the wiper control device 10 according to the present embodiment. Moreover, the wiper motor 18 shown in FIG. 2 is a DC motor with a brush as an example.

  The wiper control device 10 shown in FIG. 2 includes a drive circuit 56 that generates a voltage to be applied to the winding terminal of the wiper motor 18 and a microcomputer 58 that controls on and off of the switching elements constituting the drive circuit 56. Contains. The power of the battery 80 is supplied to the microcomputer 58 via the diode 68, and the voltage of the supplied power is detected by a voltage detection circuit 60 provided between the diode 68 and the microcomputer 58. The detection result is output to the microcomputer 58. An electrolytic capacitor C1 is provided between the diode 68 and the microcomputer 58, with one end connected and the other end (-) grounded. The electrolytic capacitor C1 is a capacitor for stabilizing the power supply of the microcomputer 58. The electrolytic capacitor C1 protects the microcomputer 58 by storing a sudden high voltage such as a surge and bypassing it to the ground region.

  A signal for instructing the rotational speed of the wiper motor 18 is input from the wiper switch 50 to the microcomputer 58 via the signal input circuit 62. Since the signal output from the wiper switch 50 is an analog signal, the signal is digitized by the signal input circuit 62 and input to the microcomputer 58.

  The microcomputer 58 is connected to a rotation angle sensor 54 that detects a magnetic field of the sensor magnet 70 that changes according to the rotation of the output shaft 32. The microcomputer 58 specifies the position of the wiper blades 28 and 30 on the windshield glass 12 by calculating the rotation angle of the output shaft based on the signal output from the rotation angle sensor 54.

  Further, the microcomputer 58 refers to the rotation speed data of the wiper motor 18 defined according to the position of the wiper blades 28 and 30 stored in the memory 48, and the rotation of the wiper motor 18 determines the specified wiper blade 28. , The drive circuit 56 is controlled so that the number of rotations corresponds to the position of 30.

  As shown in FIG. 2, the drive circuit 56 uses transistors Tr1, Tr2, Tr3, and Tr4 that are N-type FETs (field effect transistors) as switching elements. The transistors Tr1 and Tr2 have drains connected to the battery 80 via the noise prevention coil 66, and sources connected to the drains of the transistors Tr3 and Tr4, respectively. The sources of the transistors Tr3 and Tr4 are grounded.

  Further, the source of the transistor Tr1 and the drain of the transistor Tr3 are connected to one end of the winding of the wiper motor 18, and the source of the transistor Tr2 and the drain of the transistor Tr4 are connected to the other end of the winding of the wiper motor 18. .

  When a high level signal is input to the gates of the transistors Tr1 and Tr4, the transistors Tr1 and Tr4 are turned on, and the wiper motor 18 is rotated clockwise when the wiper blades 28 and 30 are viewed from the passenger compartment side, for example. An operating CW current 72 flows. Further, when one of the transistor Tr1 and the transistor Tr4 is on-controlled, the voltage of the CW current 72 can be modulated by performing on-off control in small increments by PWM (Pulse Width Modulation) control.

  Further, when a high level signal is input to the gates of the transistors Tr2 and Tr3, the transistors Tr2 and Tr3 are turned on, and the wiper motor 18 has the wiper blades 28 and 30 as viewed from the passenger compartment side. A CCW current 74 that operates in a clockwise direction flows. Furthermore, when one of the transistor Tr2 and the transistor Tr3 is on-controlled, the voltage of the CCW current 74 can be modulated by performing on-off control in small increments by PWM (Pulse Width Modulation) control.

  In the present embodiment, a reverse connection protection circuit 64 and a noise prevention coil 66 are provided between the battery 80 as a power source and the drive circuit 56, and the electrolytic capacitor C <b> 2 is parallel to the drive circuit 56. Is provided. The noise prevention coil 66 is an element for suppressing noise generated by switching of the drive circuit 56.

  The electrolytic capacitor C2 relieves noise generated from the drive circuit 56, stores a sudden high voltage such as a surge, and bypasses it to the ground region, so that an excessive current is input to the high voltage drive circuit 56. This is an element for preventing this.

  The reverse connection protection circuit 64 is a circuit for protecting the elements constituting the wiper control device 10 when the positive electrode and the negative electrode of the battery 80 are connected in reverse to the case shown in FIG. As an example, the reverse connection protection circuit 64 is configured by a so-called diode-connected FET or the like in which its drain and gate are connected.

  In addition, the wiper device 100 is provided with a current sensor using a shunt resistor in order to detect a motor current flowing through the winding of the wiper motor 18, but in this embodiment, an overcurrent is generated even when the current sensor is malfunctioning. Since the purpose is to avoid overload due to the above, detailed description of the current sensor is omitted.

  Hereinafter, the operation and effect of the wiper device 100 according to the present embodiment will be described. FIG. 3 is an explanatory view showing a case where the wiping operation is obstructed by the obstacle 82 on the passenger seat side of the wiper apparatus 100 according to the present embodiment, and (A) shows the wiper blades 28 and 30 in the upper inverted position. A state immediately after starting the wiping operation from P1, (B) shows a state where the wiper blade 28 or the wiper arm 24 on the passenger seat side interferes with the obstacle 82, respectively.

  As shown in FIG. 3A, when the wiper blades 28 and 30 start the wiping operation from the upper reverse position P1, which is the start position, the wiper control device 10 of the wiper device 100 starts counting. If the wiper blades 28 and 30 have reached the goal of the lower inversion position P2 by the predetermined count, the wiping operation is normal. As described above, in the present embodiment, the positions of the wiper blades 28 and 30 on the windshield glass 12 are calculated from the rotation angle of the output shaft 32 detected by the rotation angle sensor 54. If the calculated position of the wiper blades 28 and 30 becomes the lower inversion position P2 within a predetermined number of counts (predetermined time) from the start of counting, the wiping operation is normal and there is no interference by the obstacle 82. Can be considered.

  Further, when the wiper blades 28 and 30 start the wiping operation from the lower reverse position P2, the wiper control device 10 starts counting when the wiper blades 28 and 30 start moving from the lower reverse position P2. If the wiper blades 28 and 30 have reached the upper turning position P1 by the predetermined count, the wiping operation is normal.

  For example, the counting is performed based on the clock of the microcomputer 58 included in the wiper control device 10. The predetermined count number is determined in consideration of the fact that the wiping operation of the wiper blades 28 and 30 is influenced by the action of external force such as friction on the windshield glass 12 and traveling wind. For example, considering that the wiping operation of the wiper blades 28 and 30 is slightly delayed due to friction on the windshield glass 12 or traveling wind, the predetermined count number is such that the wiper blades 28 and 30 have the upper inversion position P1 and the lower inversion position. The count is longer than the count required for one-way movement with P2. In addition, due to the influence of the link mechanism 20 and the like, the time required for the wiping operation (return wiping) from the upper reversal position P1 to the lower reversing position P2 and the wiping operation (forward wiping) from the lower reversing position P2 to the upper reversing position P1 When the required time is different, the predetermined count number for the return path wiping and the predetermined count number for the forward path wiping may be set separately.

  As described above, in the present embodiment, the wiper blades 28 and 30 are operated at a low speed by the wiper switch 50, a high-speed operation mode selection position at which the wiper blades 28 and 30 are operated at a high speed, and intermittently operate at a constant cycle. It is possible to switch to the intermittent operation mode selection position. Accordingly, it is necessary to set a predetermined number of counts corresponding to the low speed operation mode, the high speed operation mode, and the intermittent operation mode.

  As shown in FIG. 3B, when the wiping operation is inhibited by the obstacle 82, the wiper blades 28 and 30 cannot reach the lower inversion position P2, which is the goal, by the predetermined count number. In the present embodiment, when the wiper blades 28 and 30 that have started one of the reversal positions cannot reach the other reversal position by a predetermined count, the drive circuit 56 stops the energization of the wiper motor 18. And the wiper motor 18 is controlled so as not to be overloaded.

  FIG. 4 is a flowchart showing an example of processing of the wiper apparatus 100 according to the present embodiment. In step 400, it is determined whether or not the wiper blades 28 and 30 are located at the upper reversal position P1 or the lower reversal position P2. If the determination is affirmative, in step 402, the wiper blades 28 and 30 are present at the current reversal position. Counting starts when the wiping operation is started toward the other reverse position.

  In step 404, it is determined whether or not the wiper blades 28 and 30 have reached the other reverse position. If the determination in step 404 is affirmative, the procedure proceeds to step 402, and the count starts again with the start of the wiping operation from the reached reverse position.

  If the determination in step 404 is negative, whether the count has reached a predetermined count in step 406, that is, whether a predetermined time has elapsed since the wiper blades 28, 30 started wiping operation from one reverse position. Determine whether or not. If the determination in step 406 is negative, the procedure proceeds to step 404, and it is determined whether or not the wiper blades 28 and 30 have reached the other reverse position.

  If the determination in step 406 is affirmative, the wiper blades 28 and 30 have not reached the other inversion position within a predetermined count number (predetermined time), and the wiper blade 28 is blocked by the obstacle 82 on the windshield glass 12. In this case, even if the wiper switch 50 is in the on state, the energization to the wiper motor 18 is stopped in step 408 and the process is terminated.

  Various modes can be considered for the processing after the energization of the wiper motor 18 is stopped. As an example, when the wiper switch 50 is continuously in one of the low-speed operation mode selection position, the high-speed operation mode selection position, and the intermittent operation mode selection position, the vehicle ignition switch is turned off after the energization to the wiper motor 18 is stopped. Then, when the power is turned on again, the energization to the wiper motor 18 may be resumed, and the wiper blades 28 and 30 may be wiped to try to eliminate the obstacle 82.

  For example, when the vehicle ignition switch is turned off and then on again, a reset signal is transmitted from the vehicle-side ECU (Electronic Control Unit) to the wiper control device 10, and the wiper control device 10 is reset according to the signal. The energization of the wiper motor 18 is resumed.

  Alternatively, when the ignition switch of the vehicle is turned off, a sleep signal is transmitted from the vehicle-side ECU to the wiper control device 10, and the wiper control device 10 stops according to the signal. When the ignition switch of the vehicle is turned on again, a wake-up signal is transmitted from the vehicle-side ECU to the wiper control device 10, and the wiper control device 10 resumes energization to the wiper motor 18 according to the signal.

  If the wiper blades 28 and 30 do not reach the other reverse position even after the energization is resumed, the energization to the wiper motor 18 is stopped. For example, the determination that the wiper blades 28 and 30 do not reach the other reversal position even after the energization is resumed is, for example, that the wiper blades 28 and 30 reach the other reversal position when a predetermined reactivation allowable time has elapsed since the resumption of energization. It is a case where it does not reach. The reactivation allowable time is an allowable time during which the wiper motor 18 is not damaged even if it is overloaded. The reactivation allowable time is specifically determined through a test of an actual machine.

  If the wiper blades 28 and 30 do not reach the other inversion position even after resuming energization, if the other inversion position is the lower inversion position P2, the wiper blades 28 and 30 are stopped at the current position, and the other inversion position is If the position is the upper reversal position, the wiper blades 28 and 30 are reversed from the current position, and the energization to the wiper motor 18 is controlled so as to move to the other reversal position or the storage position P3 which is the lower reversal position P2 and stop.

  As described above, in the present embodiment, when the wiper blades 28 and 30 that have started the wiping operation from one reverse position do not reach the other reverse position within a predetermined time, the energization of the wiper motor 18 is stopped. The overcurrent is prevented from flowing through the wiper motor 18 and the electric system related to the wiper motor 18. The electric current of the electric system can also be detected by a current sensor using a shunt resistor. However, when the electric sensor is malfunctioning, the overcurrent state cannot be detected, and the electric system related to the wiper device 100 and the battery 80 is not connected. There is a risk of damage. However, with the wiper device 100 according to the present embodiment, it is possible to avoid overloading the wiper motor 18 and the electric system related to the wiper motor 18 even when the current sensor is malfunctioning.

DESCRIPTION OF SYMBOLS 10 ... Wiper control apparatus, 12 ... Windshield glass, 14, 16 ... Wiper, 18 ... Wiper motor, 20 ... Link mechanism, 24, 26 ... Wiper arm, 28, 30 ... Wiper blade, 32 ... Output shaft, 34 ... Crank arm, 36 ... Link rod, 38, 40 ... Pivot lever, 42, 44 ... Pivot shaft, 46 ... Link rod, 48 ... Memory, 50 ... Wiper switch, 52 ... Reduction mechanism, 54 ... Rotation angle sensor, 56 ... Drive circuit, 58 DESCRIPTION OF SYMBOLS ... Microcomputer, 60 ... Voltage detection circuit, 62 ... Signal input circuit, 64 ... Reverse connection protection circuit, 66 ... Noise prevention coil, 68 ... Diode, 70 ... Sensor magnet, 72 ... CW current, 74 ... CCW current, 80 ... Battery, 82 ... Obstacle, 84 ... High current, 100 ... Wiper device, 118 ... Wiper motor, 128, DESCRIPTION OF SYMBOLS 30 ... Wiper blade, 132 ... Output shaft, 134 ... Direction of rotation, θ1, θ2 ... Rotation angle, C1, C2 ... Electrolytic capacitor, P1 ... Upper inversion position, P2 ... Lower inversion position, P3 ... Storage position, Tr1, Tr2, Tr3, Tr4 ... Transistor

Claims (7)

A wiper motor for operating the wiper blade;
The energization to the wiper motor is controlled so that the wiper blade performs wiping operation when the wiper switch is on, and the wiper blade is moved from a predetermined first position within a predetermined time during energization to the wiper motor. A controller that controls to stop energization of the wiper motor if the predetermined second position is not reached;
Including wiper device.   The control unit is turned on again after the vehicle ignition switch is turned off after stopping the energization of the wiper motor, and when the wiper switch is on, resumes energization to the wiper motor, 2. The wiper device according to claim 1, wherein the wiping operation from the first predetermined position toward the second predetermined position is controlled to resume.   The control unit resumes energization to the wiper motor in accordance with a reset signal transmitted from the vehicle-side control device, and a wiping operation from the predetermined first position to the predetermined second position is resumed. The wiper device according to claim 1, wherein the wiper device is controlled to be   The control unit stops operation in accordance with a sleep signal transmitted from the vehicle-side control device, resumes energization to the wiper motor in accordance with a wake-up signal transmitted from the vehicle-side control device, and performs the predetermined first The wiper device according to claim 1, wherein control is performed so that the wiping operation from a position toward the predetermined second position is resumed.   The control unit controls the energization to the wiper motor again when the wiper blade does not reach the predetermined second position after resuming energization to the wiper motor. The wiper device according to any one of 4.   The said predetermined 1st position is one inversion position which reverses wiping operation | movement, and the said 2nd predetermined position is the other inversion position which inverts wiping operation | movement. The wiper device according to claim 1. A rotation angle sensor for detecting a rotation angle of the output shaft of the wiper motor;
The wiper device according to claim 1, wherein the control unit controls a wiping operation of the wiper blade based on a rotation angle detected by the rotation angle sensor.