JP2018161985A - Wiper control method and wiper control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress interference of blades by a subsequent wiper operation when receiving a speed switching instruction during HI operation in an opposite wiping type wiper device.SOLUTION: When an operation mode of a blade is switched from HI to LO during an outward path wiping operation of wiper blades 1a and 1b, an inversion operation is performed in an LO operation mode from upper inversion positions UHa and UHb. In the inversion operation, a timing of operation start of the blade 1a on a subsequent side delays the blade 1b on a preceding side so as to largely secure a distance between blades after inversion. After the operation start of the blade 1b on the preceding side, the blade 1a on the subsequent side is made to wait at the upper inversion position UHa until an angular difference between the blade 1b and the blade 1a becomes a predetermined value, and the operation of the blade 1a on the subsequent side is started when the angular difference between both of the blades 1a and 1b becomes a predetermined value or more.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a control technique for a wiper device mounted on a vehicle such as an automobile, and more particularly to a control mode at the time of speed mode switching in a counter-wiping wiper device.

  A vehicle such as an automobile is provided with a wiper device that wipes off rain adhered to a windshield (windshield) and splashes from a front vehicle in order to secure a driver's field of view in rainy weather. In recent years, in a wiper device for a vehicle, in particular, a wiper device for an automobile, in order to increase the wiping area accompanying the increase in the size of the windshield and to improve the visibility in the lateral direction, instead of the conventional tandem type, so-called Patent Document 1 Opposite wiping type (opposite type) wiper devices are increasing. In the counter-wiping type wiper device, the center of rotation of the wiper arm is arranged on the left and right sides of the windshield, and the wiper blades on the driver's side (DR side) and passenger side (AS side) are centered from both sides of the windshield. Opposite operation toward, wipes raindrops etc. on the windshield.

  On the other hand, the wiper device has two speed modes, a high speed (HI) operation and a low speed (LO) operation, and the operation speed of the wiper blade can be switched by a driver's switch operation or the like. . At that time, in the above-described counter-wiping type wiper device, considering the difference in the stop distance due to the speed difference, as shown in FIG. 5, the upper reversal positions of the wiper blades 51a and 51b during the HI operation and the LO operation. Is different. That is, the upper inversion position UH at the time of HI operation is set on the near side (closer to the lower inversion position) than the upper inversion position UL at the time of LO operation, and there is a large difference in the inversion position between HI operation and LO operation. It is controlled not to occur.

JP 2007-126152 A JP 2009-509825 A

  In such a counter-wiping type wiper device, when the operation mode is switched from HI to LO during the forward path (lower inversion position → upper inversion position) operation, the wiper blade operates in the return path (upper inversion position → lower inversion position). ) To LO operation. In other words, in this case, the wiper blades 51a and 51b are controlled in the HI operation mode during the forward path, and when the operation direction is switched at the upper reversal position UH, the backward operation is performed in the LO operation mode thereafter. As a result, the DR-side and AS-side wiper blades 51a and 51b start the return path operation from a position closer to the lower inversion position (upper inversion position UH) than during normal LO operation (inversion at the upper inversion position UL). To do.

  However, the counter-wiping type wiper device has a wide range of operation of the left and right wiper blades, and the reciprocating operation on the DR side and the AS side is performed at the same timing. As described above, when there is a speed switching instruction during the forward path HI operation, the return path operation starts from the upper reversal position UH, and operates in a state in which the distance between both blades is closer than during normal LO operation. For this reason, if the operation of the preceding AS-side wiper blade 51b is delayed by the load on the glass surface, the distance between the blades is short and the working distance is short, so the blade operation correction control is not in time, and the blades interfere with each other during the wiping operation. There is a risk of it.

  An object of the present invention is to prevent the blades from interfering in the subsequent wiper operation when a speed switching instruction is issued during HI operation in the counter-wiping wiper device.

  The wiper control method of the present invention comprises a wiper blade that is disposed oppositely on a wiping surface of a vehicle and performs a reciprocating wiping operation between a lower inversion position and an upper inversion position set on the wiping surface. As an operation mode, there are a high speed operation mode and a low speed operation mode with different wiping operation speeds, and the upper inversion position in the high speed operation mode is closer to the lower inversion position than the upper inversion position in the low speed operation mode. The control method of the counter-wiping type wiper device set in the operation mode, when the operation mode of the wiper blade is switched from the high-speed operation mode to the low-speed operation mode during the wiping operation of the wiper blade In the reversing operation of the wiper blade from the reversing position reached after switching, after the operation of the preceding wiper blade, Ipaburedo to wait at the reversing position, and performs startup delay control to start the operation of the wiper blade of the succeeding side after a predetermined period of time.

  In the present invention, when the operation mode of the wiper blade is switched from the high-speed operation mode to the low-speed operation mode during the wiper blade wiping operation, in the subsequent reversing operation, after the start of the operation of the preceding wiper blade, The standby wiper blade waits at the reversal position, and start delay control is performed to start the operation of the subsequent wiper blade after a lapse of a predetermined period. Therefore, the distance between the blades after reversal can be secured larger than that of the conventional wiper system. . For this reason, even if the operation of the wiper blade on the leading side is delayed, the distance between the blades is large, making it difficult for both blades to interfere with each other. Interference between blades inside can be suppressed.

  In the wiper control method, the subsequent wiper blade is started to operate when an angle difference from the preceding wiper blade becomes equal to or greater than a predetermined value after the operation of the preceding wiper blade is started. Anyway. Further, when the wiper blade is switched from the high speed operation mode to the low speed operation mode in the forward wiping operation in which the wiper blade operates from the lower reverse position toward the upper reverse position, the start delay control is performed. You may be made to carry out.

  A wiper control device according to the present invention is disposed oppositely on a wiping surface of a vehicle, and performs a reciprocating wiping operation between a lower inversion position and an upper inversion position set on the wiping surface, and the wiper blade An electric motor for reciprocating on the wiping surface, and has an operation mode of the wiper blade having a high-speed operation mode and a low-speed operation mode with different wiping operation speeds, and in the high-speed operation mode The upper reversal position is a control device for the counter-wiping wiper device that is set closer to the lower reversal position than the upper reversal position in the low-speed operation mode, and is a switch that indicates the state of the wiper switch that switches the operation mode A switch information input unit for inputting information, a wiper state determination unit for determining a current wiper blade operation state at the time of input of the switch information, A blade position information calculation unit that calculates blade position information indicating the current position of the wiper blade, and when the wiper blade operation mode is switched from the high-speed operation mode to the low-speed operation mode during the wiper blade wiping operation. In the reversing operation of the wiper blade from the reversing position that is reached after the operation mode switching, after the start of the operation of the preceding wiper blade, the succeeding wiper blade is made to wait at the reversing position, and after the predetermined period has passed The control mode of the electric motor is determined based on a delay instruction unit that instructs execution of start delay control to start the operation of the wiper blade on the side, the switch information, the current wiper blade operation state, and blade position information Under the instructions of the motor control determination unit, the motor control determination unit and the delay instruction unit, A motor operation control unit for controlling the operation of the electric motor, that has the features.

  In the present invention, when the wiper blade operation mode is switched from the high-speed operation mode to the low-speed operation mode during the wiper blade wiping operation, the wiper control device, in the subsequent reversing operation, After the start of operation, the delay wiper blade is placed on standby at the reversal position after starting the operation, and the delay instruction unit is provided to perform the start delay control for starting the operation of the subsequent wiper blade after a predetermined period of time. It is possible to secure a larger distance than the conventional system. For this reason, even if the operation of the wiper blade on the leading side is delayed, the distance between the blades is large, making it difficult for both blades to interfere with each other. Interference between blades inside can be suppressed.

  In the wiper control device, the motor control determination unit may determine that an angle difference between the preceding wiper blade and the succeeding wiper blade is equal to or greater than a predetermined value after the operation of the preceding wiper blade is started. When this happens, the operation of the wiper blade on the subsequent side may be started. Further, when the wiper blade is switched from the high speed operation mode to the low speed operation mode in the forward wiping operation in which the wiper blade operates from the lower reverse position toward the upper reverse position, the start delay control is performed. You may be made to carry out.

  According to the wiper control method of the present invention, when the wiper blade operation mode is switched from the high speed operation mode to the low speed operation mode during the wiper blade wiping operation, in the subsequent reversal operation, after the operation of the preceding wiper blade is started. Since the starter delay control is performed so that the succeeding wiper blade waits at the reversing position and the operation of the succeeding wiper blade is started after a predetermined period of time, the distance between the blades after reversing is determined by the conventional wiper system. It is possible to secure a larger than that. For this reason, even if the operation of the wiper blade on the leading side is delayed, the distance between the blades is large, making it difficult for both blades to interfere with each other. It is possible to reduce the possibility of interference between the blades inside.

  In the wiper control device of the present invention, when the operation mode of the wiper blade is switched from the high speed operation mode to the low speed operation mode during the wiper blade wiping operation, in the subsequent reversing operation, after the operation of the preceding wiper blade is started, Since there is a delay instructing unit that performs the start delay control that causes the succeeding wiper blade to wait at the reversing position and starts the operation of the succeeding wiper blade after a predetermined period of time, the distance between the blades after reversing is conventionally It is possible to secure larger than the wiper system. For this reason, even if the operation of the wiper blade on the leading side is delayed, the distance between the blades is large, making it difficult for both blades to interfere with each other. It is possible to reduce the possibility of interference between the blades inside.

It is explanatory drawing which shows the whole structure of the wiper system with which the wiper control method and apparatus which are one embodiment of this invention are applied. It is a block diagram which shows the structure of the control system for performing delayed start control in a wiper control apparatus. It is a flowchart which shows the flow of delayed start control. It is a time chart which shows the blade positional relationship and motor operation | movement at the time of delayed start control. It is explanatory drawing which shows the difference in the upper reversal position of the wiper blade at the time of HI operation | movement and LO operation | movement.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory diagram showing the overall configuration of a wiper system to which a wiper control method / device according to an embodiment of the present invention is applied. The wiper system in FIG. 1 has a counter-wiping type configuration, and wiper blades 1a and 1b (hereinafter abbreviated as blades 1a and 1b) that reciprocate between an upper inversion position and a lower inversion position so as to face each other. have. Note that “a, b” in the reference numerals in the wiper system of FIG. 1 indicate members and portions related to the driver's seat side and the passenger seat side, respectively.

  The blades 1a and 1b are attached to one end sides of wiper arms 2a and 2b (hereinafter abbreviated as arms 2a and 2b), respectively. The arms 2a and 2b are provided with spring members (not shown) and the like, and the blades 1a and 1b are elastically pressed against the windshield 3 by the spring members and the like. The other ends of the arms 2a and 2b are respectively attached to wiper shafts (pivot shafts) 4a and 4b disposed on the left and right ends of the windshield of the vehicle body. The wiper shafts 4a and 4b are rotationally driven by electric motors 5a and 5b (hereinafter abbreviated as motors 5a and 5b). The arms 2a and 2b swing as the wiper shafts 4a and 4b rotate, whereby the blades 1a and 1b perform a reciprocating wiping operation on the windshield 3.

  Also in the wiper system of FIG. 1, two speed modes, high speed (HI) operation and low speed (LO) operation, are set as the operation modes of the blades 1a and 1b. As described above, the wiper blades 1a and 1b reciprocate between the upper inversion position and the lower inversion position, but different upper inversion positions are set between the HI operation and the LO operation. In this case, the lower inversion positions La and Lb do not vary depending on the speed mode, but the upper inversion positions UHa and UHb during the HI operation and the upper inversion positions ULa and ULb during the LO operation are set as the upper inversion position. . The upper inversion positions UHa and UHb at the time of HI operation are set on the lower inversion positions La and Lb than the upper inversion positions ULa and ULb at the time of LO operation.

  The motors 5a and 5b are constituted by a motor body 6 and a speed reduction mechanism 7, and rotate forward and backward by PWM duty control by the wiper control devices 10a and 10b. A wiper control device 10a that drives and controls the motor 5a is connected to an ECU 11 that is a vehicle-side controller via an in-vehicle LAN 12. Switch information such as ON / OFF of the wiper switch, LO, HI, and INT (intermittent operation), engine start-up information, and the like are input from the ECU 11 to the wiper control device 10a via the LAN 12. The wiper control devices 10a and 10b are connected by a communication line 13.

  The motors 5a and 5b are feedback controlled (PI control) based on the position information of the blades 1a and 1b. Here, the target speeds of both blades are set in correspondence with the positions of the blades 1a and 1b, and are stored in advance in the wiper control devices 10a and 10b in the form of MAP or the like. In order to perform feedback control, the motors 5a and 5b are provided with a multi-pole magnetized magnet 15 on the motor shaft 14 and a Hall IC 17 for detecting the relative position in the case frame 16, and as the motor shaft 14 rotates. A pulse signal is output. An absolute position detecting magnet 19 is attached to the reduction gear 18 to which the wiper shafts 4a and 4b are attached, and a hall IC 20 is provided on the case frame 16 so as to face the magnet.

  The absolute position detection magnet 19 faces the Hall IC 20 when the blades 1a, 1b reach a reference position (for example, an intermediate point between the upper reversal positions ULa, ULb and the lower reversal positions La, Lb), and the wiper control devices 10a, 10a, 10b recognizes the absolute positions of the blades 1a and 1b based on the output signal. Further, the wiper control devices 10a and 10b use the pulse signal from the Hall IC 17 to grasp the rotational speed and rotational speed of the motor shaft 14, and to determine the moving speed of the blades 1a and 1b and the angle from the reference position (current position). ) Is detected. Then, the current speeds of the blades 1a and 1b are compared with the target speeds of the blades 1a and 1b at the positions, and the motors 5a and 5b are appropriately controlled according to the difference between the target speed and the current speed. At that time, the control information of both the motors 5a and 5b is exchanged between the wiper control devices 10a and 10b via the communication line 13, and the motors 5a and 5b are synchronously controlled based on the positional relationship between both blades. .

  Even in such a wiper system, when the operation mode is switched from HI to LO during the forward operation, the operation of the wiper blade is switched from the return route to the LO operation. That is, when there is a speed switching instruction from the ECU 11 during the forward path HI operation, the wiper control devices 10a and 10b start the backward path operation from the upper inversion positions UHa and UHb that are closer to the lower inversion position than during the normal LO operation. As described above, in the conventional wiper system, if the operation of the blade 1b on the AS side is delayed by the load on the glass surface, the blades interfere with each other during the wiping operation because the distance between the blades is short and the working distance is short. There is a risk that.

  Therefore, in the wiper system, when the operation mode is switched from HI to LO during the forward operation, the operation start of the AS side blade 1b is delayed, and the distance to the DR side blade 1a becomes a predetermined value or more. By operating at the time, the interference between the blades is suppressed. FIG. 2 is a block diagram showing a configuration of a control system for performing such delayed start control in the wiper control devices 10a and 10b, and FIG. 3 is a flowchart showing a flow of delayed start control at the time of operation mode switching. . Since the wiper control devices 10a and 10b have the same configuration, only the block diagram of the wiper control device 10a is shown.

  As shown in FIG. 2, the wiper control device 10a (same as 10b as described above) includes a switch information input unit 21 to which wiper switch information indicating the state of the wiper switch for switching the operation mode is input from the ECU 11. A wiper state determination unit 22 is provided for determining the current wiper operation state (LO, HI, INT) when switch information is input. The wiper control device 10a also calculates blade position information that calculates blade position information indicating the current position and moving speed of the blades 1a and 1b based on the absolute position signal from the Hall IC 20 and the pulse signal from the Hall IC 17. A portion 23 is provided.

  In the subsequent stage of the switch information input unit 21, the wiper state determination unit 22, and the blade position information calculation unit 23, control modes of the motors 5a and 5b (blades 1a and 1b) based on the switch information, the current wiper operation, and the blade position. There is provided a motor control determining unit 24 for determining. Further, the wiper control device 10a includes a delay instruction unit 25 that instructs execution of the delayed start control described above, and a motor that controls the operation of the motors 5a and 5b under the instruction of the motor control determination unit 24 and the delay instruction unit 25. An operation control unit 26 is provided. The motor operation control units 26 of the wiper control devices 10 a and 10 b are connected by a communication line 13.

  FIG. 3 is a flowchart showing the flow of delayed start control. As shown in FIG. 3, in the wiper control devices 10 a and 10 b, when the wiper switch is switched (step S <b> 1), the switch information input unit 21 grasps it, and the wiper state determination unit 22 sets the switching pattern “ It is determined whether or not “HI → LO” (step S2). At this time, if the switching pattern is not “HI → LO”, the motor control determination unit 24 determines that the delayed start control is not performed, and exits the routine. On the other hand, in the case of “HI → LO”, the process proceeds to step S3 and it is determined whether or not the switching is in the forward path. At this time, if the switching is performed on the “outward trip”, the motor control determination unit 24 instructs the delay instruction unit 25 to turn on the “start delay flag” in step S4, and then proceeds to step S5. move on. On the other hand, when the switching is performed on the “return path”, the delayed start control is not performed, and therefore the “start delay flag” is not turned ON, and the process proceeds to step S5.

  In step S5, the blade position information calculation unit 23 determines whether the blades 1a and 1b have reached the upper inversion positions UHa and UHb or the lower inversion positions La and Lb. Proceeding to S6, it is determined whether or not the “start delay flag” is present. At this time, if there is no “start delay flag” (start delay flag: OFF), the process proceeds to step S7, where both the DR-side and AS-side motors 5a, 5b are turned on, and the blades 1a, 1b are both reversed. That is, when “HI → LO” is set during the return path operation, the lower inversion positions La and Lb are constant regardless of the operation mode, and therefore the motor control determination unit 24 does not perform the delayed start control in particular. The operation is started in the LO operation mode from the reversal positions La and Lb.

  On the other hand, when the “start delay flag” exists (start delay flag: ON), the process proceeds to step S8. In step S8, the motor control determining unit 24 operates only the leading AS side motor 5b to reverse only the blade 1b, while the trailing side DR side motor 5a is stopped, and the blade 1a operates. Is delayed (waiting). Thereafter, the angle difference between the two blades is determined based on the blade position information from the blade position information calculation unit 23 in step S9 while delaying the DR side (following side). When the angle difference is equal to or greater than a predetermined value (for example, 20 ° or more), the process proceeds to step S10, where the motor control determination unit 24 works on the delay instruction unit 25 to turn off the “start delay flag”, and then step Proceeding to S11, the operation of the DR side motor 5a is permitted, the operation of the waiting blade 1a is started, and the routine is exited. At this time, the blade 1a has already been preceded by an interval of a predetermined value or more, and a large angular difference between the blades 1a and 1b can be secured as compared with the conventional control mode.

  FIG. 4 is a time chart showing the blade positional relationship and motor operation during delayed start control. As shown in FIG. 4, when the “start delay flag” is set (arrow P1 in FIG. 4), the AS side motor 5b is operated at the upper reverse position UHb, and the blade 1b is reversely operated. The motor 5a is stopped, and the blade 1a waits for a delay at the upper reverse position UHa (X portion in FIG. 4: S6 → S8 in FIG. 3). Thereafter, when the angle difference between the blades 1a, 1b becomes equal to or greater than a predetermined value (arrow Q in FIG. 4), the “start delay flag” is turned off (arrow P2 in FIG. 4: S9 → S10 in FIG. 3). ), The DR side motor 5a is operated to start the operation of the blade 1a that has been waiting (Y portion in FIG. 4: S9 → S11 in FIG. 3).

  As described above, in the wiper system according to the present invention, when the operation mode is switched from HI to LO during the forward operation, the “start delay flag” is turned ON, and only the preceding motor (AS motor 5b) is output ON. Then, the output of the succeeding side motor (DR side motor 5a) is kept in a standby state while being OFF. Then, during the period until the DR-AS angle difference reaches a predetermined value, the subsequent side is made to stand by. When the angle difference becomes equal to or larger than the predetermined value, the “start delay flag” is turned OFF, the output of the subsequent motor is turned ON, Start wiping. As a result, even if the return path LO operation is started from the upper reversal positions UHa and UHb, it is possible to ensure a larger distance between the blades 1a and 1b than in the conventional system. Therefore, even if the operation of the leading blade 1b is delayed, the two blades are less likely to interfere with each other because the distance between the blades is large, and it is easy to secure time for correcting and controlling the blade operation. It is possible to reduce the possibility of interference.

It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.
For example, in the above-described embodiment, the start delay control is performed only when the operation mode is switched from HI to LO during the forward operation, but the start delay control is also performed when the operation mode is changed from HI to LO during the return operation. It is also possible to do this. In this case, the forward path start position does not vary at the lower inversion positions La and Lb, but both the blades 1a and 1b start from substantially the same position, and thus there is a possibility that interference may occur due to the delay on the leading side. Thus, the distance between the blades is ensured at the time of reversal start, and the occurrence of interference is suppressed.

  Further, the start delay control may be performed not only when the operation mode changes from HI to LO during the forward operation, but also when the operation mode changes from HI to OFF during the forward operation. Furthermore, in order to reduce the control burden, the operation start timing of the trailing blade may be performed not by the angle difference between the two blades but by the time difference. For example, the blade 1b may reversely operate, wait for 1 second, and start the blade 1a 1 second after the blade 1b. Instead of the start delay control, in the case of HI → LO during the forward operation, a control form in which the speed MAP is changed so that the space between the preceding blade and the following blade is widened is also possible.

DESCRIPTION OF SYMBOLS 1a, 1b Wiper blade 2a, 2b Wiper arm 3 Wind shield 4a, 4b Wiper shaft 5a, 5b Electric motor 6 Motor body 7 Deceleration mechanism 10a, 10b Wiper control device 11 ECU
12 In-vehicle LAN
13 Communication line 14 Motor shaft 15 Multipolar magnetized magnet 16 Case frame 17 Hall IC
18 Reduction gear 19 Absolute position detection magnet 20 Hall IC
21 switch information input unit 22 wiper state determination unit 23 blade position information calculation unit 24 motor control determination unit 25 delay instruction unit 26 motor operation control units 51a and 51b wiper blades La and Lb lower reverse position UH upper reverse position (HI operation mode)
UL upside down position (LO operation mode)
UHa, UHb Upper reverse position (HI operation mode)
ULa, ULb Top reverse position (LO operation mode)

Claims (6)

A wiper blade disposed oppositely on the wiping surface of the vehicle and performing a reciprocating wiping operation between a lower inversion position and an upper inversion position set on the wiping surface;
As an operation mode of the wiper blade, it has a high speed operation mode and a low speed operation mode with different wiping operation speeds,
The upper inverting position in the high speed operation mode is a control method of the counter wiping type wiper device, which is set closer to the lower inversion position than the upper inversion position in the low speed operation mode,
When the wiper blade operation mode is switched from the high-speed operation mode to the low-speed operation mode during the wiper blade wiping operation, the wiper blade reversing operation from the reversing position reached after the operation mode switching is preceded by After the start of the operation of the wiper blade on the side, the subsequent wiper blade is made to stand by at the reversal position, and start delay control is performed to start the operation of the wiper blade on the subsequent side after a predetermined period of time. Wiper control method to do. The wiper control method according to claim 1,
The wiper blade on the succeeding side starts to operate when an angle difference from the wiper blade on the preceding side becomes a predetermined value or more after the operation of the wiper blade on the preceding side starts. Method. The wiper control method according to claim 1 or 2,
The start delay control is performed when the operation mode of the wiper blade is switched from the high-speed operation mode to the low-speed operation mode in the forward wiping operation in which the wiper blade operates from the lower reverse position toward the upper reverse position. A wiper control method. A wiper blade disposed opposite to the wiping surface of the vehicle and performing a reciprocating wiping operation between a lower reversing position and an upper reversing position set on the wiping surface, and the wiper blade reciprocating on the wiping surface An electric motor for
As an operation mode of the wiper blade, it has a high speed operation mode and a low speed operation mode with different wiping operation speeds,
The upper reversal position in the high speed operation mode is a control device for the counter-wiping wiper apparatus set closer to the lower reversal position than the upper reversal position in the low speed operation mode,
A switch information input unit to which switch information indicating a state of the wiper switch for switching the operation mode is input;
A wiper state determination unit that determines a current wiper blade operation state when the switch information is input;
A blade position information calculation unit for calculating blade position information indicating a current position of the wiper blade;
When the wiper blade operation mode is switched from the high-speed operation mode to the low-speed operation mode during the wiper blade wiping operation, the wiper blade reversing operation from the reversing position reached after the operation mode switching is preceded by After the start of the operation of the wiper blade on the side, a delay instructing the execution of the start delay control for causing the wiper blade on the subsequent side to stand by at the reversal position and starting the operation of the wiper blade on the subsequent side after a predetermined period has elapsed. An indicator,
A motor control determination unit that determines a control mode of the electric motor based on the switch information, the current wiper blade operation state, and blade position information;
A wiper control device comprising: a motor operation control unit that controls the operation of the electric motor under instructions of the motor control determination unit and the delay instruction unit. The wiper control device according to claim 4, wherein
The motor control deciding unit, after the operation of the wiper blade on the preceding side starts, when the angle difference between the wiper blade on the preceding side and the wiper blade on the succeeding side becomes a predetermined value or more, A wiper control device for starting the operation of the wiper blade. In the wiper control device according to claim 4 or 5,
The start delay control is performed when the operation mode of the wiper blade is switched from the high-speed operation mode to the low-speed operation mode in the forward wiping operation in which the wiper blade operates from the lower reverse position toward the upper reverse position. Wiper control device characterized by being made.

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