Wiper motor control device

Abstract

The utility model discloses a wiper motor control device which comprises an MCU module, and a power supply filter circuit, a CAN filter module, a PCB temperature sensor, a power supply anti-reverse module, an H-bridge driving module, a voltage division circuit, a current filter circuit, a current sensor and a motor which are respectively connected with the MCU module, the MCU module comprises a power management module, a CAN transceiver, an ADC module, an H-bridge pre-drive chip and an operational amplifier. The power supply filter circuit, the power supply anti-reverse module and the H-bridge driving module are sequentially connected to the motor; the input of the H-bridge driving module is connected with the H-bridge pre-driving chip, the output of the H-bridge driving module is connected with the voltage division circuit, the output of the voltage division circuit is connected with the input of the ADC module, the output of the motor is connected with the input of the current sensor, the current sensor is connected with the current filter circuit, and the output of the current filter circuit is connected with the input of the operational amplifier. The output of the operational amplifier is connected with the input of the ADC module, and the output of the ADC module is connected with the input of the PCB temperature sensor, so that equipment damage caused by overheating of the PCB is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor control technical field especially relates to a wiper motor control device. BACKGROUND

[0002] Traditional wiper motor control adopts hardware circuit composed of relay, and the different working states of motor are switched through contact. This mode has many problems, such as the continuous deformation of contact spring, short service life, and the slow change stage of relay contact when connecting or disconnecting, which makes the fixed contact and movable contact also in slow connection or disconnection state, and is easy to produce noise signal interference chip normal work, resulting in misjudgment. With the continuous development of automobile electronic technology, people's functional requirements for wiper system are higher and higher, and the requirement of wiper control is high.

[0003] The space of traditional wiper motor control circuit integrated on PCB is limited, and the spacing between components is too small, which is not conducive to heat dissipation and maintenance. The wiper motor generates heat during operation, and the components on the PCB are usually sensitive to temperature, which is easy to produce poor heat dissipation, resulting in performance degradation or even damage of components, and reduces the wiper control efficiency. UTILITY MODEL CONTENTS

[0004] The utility model wants to solve the technical problem to provide a kind of wiper motor control device, through the synergies of power filter circuit and power management module, the integration of temperature sensor, current detection and control and H bridge drive module protection mechanism, avoid the equipment damage caused by PCB overheating, improve the wiper control efficiency.

[0005] The utility model provides a kind of wiper motor control device, including MCU module and respectively with the power filter circuit, CAN filter module, PCB temperature sensor, debugging interface, power anti-reverse module, H bridge drive module, voltage division circuit, current filter circuit, current sensor, motor of MCU module connection,

[0006] The MCU module includes power management module, CAN transceiver, ADC module, H bridge pre-drive chip and operational amplifier;

[0007] The external 24V power supply is connected to the first input end of the power supply filtering circuit, one way of the first output end of the power supply filtering circuit is connected to the first input end of the power management module, and the other way of the first output end of the power supply filtering circuit is connected to the motor through the power anti-reverse module and the H-bridge driving module in sequence; the GND is connected to the second input end of the power supply filtering circuit, one way of the second output end of the power supply filtering circuit is connected to the second input end of the power management module, and the other way of the second output end of the power supply filtering circuit is connected to the motor through the power anti-reverse module and the H-bridge driving module in sequence; the input end of the H-bridge driving module is connected to the output end of the H-bridge pre-driving chip, the output end of the H-bridge driving module is connected to the input end of the voltage dividing circuit, the output end of the voltage dividing circuit is connected to the first input end of the ADC module, the output end of the motor is connected to the input end of the current sensor, the output end of the current sensor is connected to the input end of the current filtering circuit, the output end of the current filtering circuit is connected to the input end of the operational amplifier, the output end of the operational amplifier is connected to the second input end of the ADC module, and the output end of the ADC module is connected to the input end of the PCB temperature sensor.

[0008] Preferably, the MCU module further comprises a CAN transceiver, and the external CAN signal is connected to the input end of the CAN filtering module, and the CAN filtering module is connected to the CAN transceiver.

[0009] Preferably, the MCU module further comprises a SWD module, and the output end of the debugging interface is connected to the input end of the SWD module.

[0010] Preferably, the H-bridge driving module comprises an H-bridge structure formed by four power switching tubes, which is used to change the direction and size of the current in the motor winding by controlling the conduction and cutoff sequence of the four switching tubes, so as to realize the functions of forward and reverse rotation and speed regulation of the motor.

[0011] Preferably, the motor internal circuit comprises a wiper motor assembly formed by a controller and a wiper motor.

[0012] Preferably, the motor internal circuit further comprises a switch group, which is provided with a water spraying switch, an automatic gear switch, an intermittent switch, a high-speed switch, a low-speed switch and a car washing switch.

[0013] Preferably, the water spraying port of the controller is connected to the water spraying switch, the automatic gear port of the controller is connected to the automatic gear switch, the intermittent port of the controller is connected to the intermittent switch, the high-speed port of the controller is connected to the high-speed switch, the low-speed port of the controller is connected to the low-speed switch, the car washing port of the controller is connected to the car washing switch, and the Motor+ end and the Motor- end of the controller are respectively connected to the two ends of the motor itself.

[0014] As preferred, the motor internal circuit further comprises a water pump, and the PUMP+ end and the PUMP- end of the controller are connected to two ends of the water pump.

[0015] As preferred, the motor internal circuit further comprises a rain sensor, and the power supply end, the GND end, the CANH end and the CANL end of the controller are connected to the rain sensor, for detecting the size of rainfall, converting the detected rainfall information into an electric signal, and transmitting the electric signal to the controller through a line connected to the controller.

[0016] The application further provides a vehicle comprising the wiper motor control device.

[0017] The utility model discloses a kind of wiper motor control devices, including motor, controller, motor internal circuit and rain sensor, wherein, the controller is connected to the motor internal circuit, and the rain sensor is connected to the controller.

[0018] The rain screen motor control device provided by the utility model connects power filter circuit through external 24V power supply, and connects power management module after filtering.The power filter circuit can effectively reduce the ripple and noise interference in the power supply, prevent the PCB from overheating due to power fluctuation, monitor and manage the power supply through the power management module, reasonably distribute the power, avoid excessive heat generated by the power supply part due to overcurrent, overvoltage and other problems, thereby protecting other elements on the PCB and prolonging the service life of the PCB.The PCB temperature sensor is integrated on the PCB, and the temperature of the PCB is monitored in real time.When the temperature is too high, the MCU module can take corresponding measures according to the information fed back by the temperature sensor, such as adjusting the running state of the motor (reducing power or pausing for a period of time), to avoid damage to the PCB caused by overheating;Through reasonable PCB layout and heat dissipation design, such as setting a special heat dissipation area, using heat dissipation fins or heat dissipation holes and the like, the heat dissipation performance of the PCB is improved, and the heat can be dissipated in time to maintain the PCB in a stable working temperature range.The current sensor is connected to the motor output end, and the working current of the motor is monitored in real time, and the current signal is filtered by the current filter circuit, and then the information is transmitted to the operational amplifier and the ADC module, and finally fed back to the MCU module, and the MCU module can judge the load condition of the motor according to the current size, and adjust the running parameters of the motor in time to avoid excessive heat generated by excessive current, thereby damaging the elements on the PCB.The H-bridge driving module adopted by the utility model is composed of four power switching tubes, and the forward and reverse rotation and speed regulation functions of the motor are realized by controlling the conduction and cutoff sequence of the switching tubes.In the working process, the MCU module combines the information fed back by the current sensor and the temperature sensor to protect and control the H-bridge driving module, and adjusts the conduction sequence of the switching tube or reduces the speed of the motor in time when detecting abnormal current or excessive temperature, prevents the H-bridge driving module from being damaged due to overcurrent or overheating, and also avoids the adverse effects on the PCB.The MCU module as the core control unit integrates the power management module, CAN transceiver, ADC module, H-bridge pre-driving chip and operational amplifier and other functional modules, and can quickly and accurately process various signals and data.For example, by analyzing and processing the signals transmitted by the position sensor and the current sensor, the starting, stopping, speed and other parameters of the rain screen motor are accurately controlled, and efficient rain screen control is realized.

[0019] The wiper motor control device provided by the utility model can realize accurate control of the wiper motor by using a microcontroller unit (MCU) module, the MCU integrates power management, CAN communication, analog-to-digital conversion (ADC), H-bridge pre-driving and operational amplification functions, can quickly process sensor data and make control decisions, in combination with the data of the position sensor and the current sensor, the system can identify the position of the wiper arm in real time and quickly respond when encountering obstacles, avoid damaging the wiper or the vehicle glass, the power anti-reverse module, the current filter circuit and the temperature sensor and other components provide multiple protection, prevent electrical failure and overload from occurring, ensure long-term stable operation of the system, the fault detection mechanism in the motor can timely alarm the driver when an abnormality occurs, and take corresponding safety measures, such as stopping the motor operation or switching to manual mode, by setting different switch groups (such as water spraying switch, automatic gear switch, intermittent switch and the like), the user can select different wiper working modes according to needs, meet the use requirements under various weather conditions. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a wiper motor control device principle block diagram in the embodiment of the utility model;

[0021] Figure 2 It is a motor internal circuit diagram in the embodiment of the utility model. DETAILED DESCRIPTION

[0022] The utility model discloses a kind of car logo switching device and control method, which is further described in detail in combination with drawings and specific embodiments.The advantages and features of the utility model will be clearer according to the following description and claims.

[0023] As Figure 1 Indicated, the utility model provides a kind of wiper motor control device, including MCU module and respectively with the power filter circuit, CAN filter module, PCB temperature sensor, debugging interface, power anti-reverse module, H bridge drive module, voltage divider circuit, current filter circuit, current sensor, motor that the MCU module is connected, and all are integrated on PCB board;

[0024] The MCU module includes power management module, CAN transceiver, ADC module, H bridge pre-driving chip and operational amplifier;

[0025] The external 24V power supply is connected to the first input end of the power supply filtering circuit. One way of the first output end of the power supply filtering circuit is connected to the first input end of the power management module. Another way of the first output end of the power supply filtering circuit is connected to the motor through the power anti-reverse module and the H-bridge driving module in sequence. The GND is connected to the second input end of the power supply filtering circuit. One way of the second output end of the power supply filtering circuit is connected to the second input end of the power management module. Another way of the second output end of the power supply filtering circuit is connected to the motor through the power anti-reverse module and the H-bridge driving module in sequence. The input end of the H-bridge driving module is connected to the output end of the H-bridge pre-driving chip. The output end of the H-bridge driving module is connected to the input end of the voltage dividing circuit. The output end of the voltage dividing circuit is connected to the first input end of the ADC module. The output end of the motor is connected to the input end of the current sensor. The output end of the current sensor is connected to the input end of the current filtering circuit. The output end of the current filtering circuit is connected to the input end of the operational amplifier. The output end of the operational amplifier is connected to the second input end of the ADC module. The output end of the ADC module is connected to the input end of the PCB temperature sensor.

[0026] The above scheme integrates all key components such as MCU module, power filter circuit, CAN filter module, etc. on the PCB board, making the structure of the entire control device more compact, realizing the integration of multiple functions in limited space, and being particularly suitable for applications such as vehicles with high space requirements. After the external 24V power supply is connected to the power filter circuit, it is divided into two paths to supply power to different modules. The power filter circuit can effectively remove the ripple, noise and interference signals in the power supply, ensuring stable and clean power supply for each module. For example, after the power management module obtains stable power supply, it can better exert its monitoring and management functions on the power supply, avoiding system failure or performance degradation caused by power fluctuations. A power anti-reverse module is provided in the power supply access path. When the positive and negative poles of the power supply are connected incorrectly, the power anti-reverse module can cut off the circuit in time to prevent reverse voltage from damaging the motor and other circuit elements, improving the reliability and safety of the system and reducing the risk of power failure caused by human operation errors or external factors. The MCU module includes a power management module, a CAN transceiver, an ADC module, an H-bridge pre-driver chip, and an operational amplifier, etc. The power management module finely manages the power supply to ensure the energy utilization efficiency of the system, and the CAN transceiver realizes efficient communication with other vehicle systems, enabling the wiper motor control device to receive and send various control signals such as rainfall information and control instructions. The ADC module converts analog signals (such as signals from current sensors and PCB temperature sensors) into digital signals for easy processing and analysis by the MCU. The H-bridge pre-driver chip is used to drive the H-bridge driving module to accurately control the forward and reverse rotation and speed of the motor, and the operational amplifier amplifies and processes signals to improve the accuracy and precision of control. The H-bridge driving module is controlled by the MCU module and cooperates with the ADC module and operational amplifier through a reasonable voltage dividing circuit to achieve precise control of the wiper motor. For example, the speed and direction of the motor can be accurately adjusted according to different working conditions to make the wiper perform water scraping actions at the appropriate speed and force, improving the effectiveness and precision of wiper control. Equipped with various sensors such as PCB temperature sensors and current sensors, the system can monitor the temperature of the PCB and the working current of the motor in real time and transmit the monitored data to the MCU module. The MCU module analyzes and processes these data in real time and takes appropriate measures such as adjusting the operation of the motor and issuing alarms when it detects abnormally high temperature or current, thereby realizing real-time protection and optimized control of the system and improving its reliability and stability.

[0027] As Figure 2As shown, the MCU module also includes a CAN transceiver, and the external CAN signals access the input end of the CAN filter module, and the CAN filter module is interactively connected with the CAN transceiver. Other control units in the vehicle system, such as the body controller, can send control instructions to the wiper motor control device through the CAN bus. After being screened and filtered by the CAN filter module, these instructions are accurately transmitted to the CAN transceiver, and then the CAN transceiver transmits the instructions to the MCU module for processing. For example, when the body controller detects a change in rainfall, it can quickly send instructions to the wiper motor control device through the CAN bus to adjust the speed or working mode of the wiper motor, achieving efficient response. The CAN filter module can screen the incoming CAN signals, allowing only signals that meet the preset conditions to pass and be transmitted to the CAN transceiver, effectively filtering out irrelevant or erroneous data, reducing interference and errors during data transmission, and improving the accuracy and reliability of data transmission. In the complex electromagnetic environment of the vehicle, this filtering mechanism can ensure that the wiper motor control device receives the correct control information and avoids false actions of the wiper caused by incorrect instructions. In the vehicle, there are many different control units and electronic devices, which may come from different suppliers or have different communication protocol standards. However, as a widely used vehicle communication standard, the CAN bus has good compatibility. Through the combination of the CAN transceiver and the CAN filter module, the wiper motor control device can be seamlessly connected with other control units that comply with the CAN communication protocol, achieving stable data interaction, so that the wiper motor control device can better integrate into the overall electronic system of the vehicle and work collaboratively with other devices, facilitating system upgrade and expansion, and enhancing system security.

[0028] In one embodiment, the MCU module further includes a SWD module, and the output terminals of the debugging interface are connected to the input terminals of the SWD module respectively. The SWD (Serial Wire Debug) module provides an efficient and convenient way for program download and debugging of the MCU. By downloading the compiled program into the MCU module through the debugging interface, the developer can conveniently modify, debug and optimize the program during development. For example, when developing the control algorithm of the rain-sensing wiper motor, the new algorithm program can be downloaded into the MCU using the SWD module, and operations such as setting breakpoints, single-step execution, etc. can be performed through the debugging interface to observe the running state of the program and the value of the variable, so as to quickly locate and solve the errors in the program. Compared with traditional debugging methods such as JTAG, the SWD module has higher download speed and lower pin number requirement. This enables the developer to download the program into the MCU more quickly, reduces the waiting time, and improves the development efficiency. At the same time, the SWD module also supports online debugging function, which can debug the program without stopping its running, further saving the development time. After the debugging interface is connected with the SWD module, the working state of the MCU can be monitored in real time. During the running process of the rain-sensing wiper motor control device, if the MCU appears abnormal conditions such as program crash, dead loop, etc., the developer can obtain the relevant information of the MCU such as register value, stack information, etc. through the debugging interface, so as to accurately judge the fault cause. For example, when the rain-sensing wiper motor appears abnormal action, the running state of the MCU can be checked through the debugging interface to judge whether it is caused by program error, and timely repair. When the system fails, the SWD module can be used with the debugging tool to comprehensively check each part of the MCU. The developer can send specific commands through the debugging interface to read the internal state information of the MCU, and compare with the normal running state to find out the problem. For example, if the rotation speed of the rain-sensing wiper motor is unstable, the register values and variable values related to motor control in the MCU can be checked through the SWD module to judge whether it is a problem of control algorithm or a problem of hardware circuit, so as to take corresponding measures for repair.

[0029] In an embodiment, the H-bridge drive module is composed of an H-bridge structure of four power switch tubes, which is used to change the direction and size of the current in the motor winding by controlling the on-off sequence of the four switch tubes, thereby realizing the functions of forward and reverse rotation and speed regulation of the motor. By a specific on-off sequence of the switch tubes, the direction of the current in the motor winding is changed, thereby easily realizing the forward and reverse rotation of the motor. For example, in the application of a wiper motor, when it is necessary to change the swing direction of the wiper blade, only the state of the switch tube in the H-bridge drive module needs to be adjusted, and the forward and reverse rotation of the wiper motor can be realized, meeting the needs of different working scenes. The size of the current in the motor winding can be controlled by adjusting the on time of the switch tube, and then the precise regulation of the motor speed is realized. In the control of the wiper motor, according to the conditions such as the size of the rainfall and the driving speed of the vehicle, the swing speed of the wiper needs to be precisely controlled. The H-bridge drive module can control the on time of the switch tube by adjusting the duty cycle of the pulse width modulation (PWM) signal according to the instructions of the MCU module, thereby realizing the stepless speed regulation of the wiper motor, making the wiper work at the most appropriate speed, improving the wiping effect and reducing the noise.

[0030] In an embodiment, the motor internal circuit includes a wiper motor assembly formed by connecting the controller and the wiper motor, so that the components of the entire wiper motor are more integrated.

[0031] In an embodiment, the motor internal circuit further includes a switch group, which is provided with a water spraying switch, an automatic gear switch, an intermittent switch, a high speed switch, a low speed switch and a car washing switch, meeting different weather needs and adapting to different driving scenes.

[0032] In one embodiment, the water spraying port of the controller is connected with a water spraying switch, the automatic gear port of the controller is connected with an automatic gear switch, the intermittent port of the controller is connected with an intermittent switch, the high-speed port of the controller is connected with a high-speed switch, the low-speed port of the controller is connected with a low-speed switch, the car washing port of the controller is connected with a car washing switch, and the Motor+ end and the Motor- end of the controller are respectively connected with the two ends of the motor itself. The connection of the different ports of the controller with the respective switches enables the driver to realize various wiper modes by operating different switches. For example, the connection of the water spraying port with the water spraying switch enables the driver to conveniently start the water spraying function when needed to clean the windshield. The connection of the automatic gear switch with the automatic gear port enables the intelligent adjustment of the wiper speed according to the driving speed of the vehicle to adapt to different driving scenes. This centralized control mode enables the driver to accurately select the working state of the wiper according to the actual demand, thereby improving the controllability of the wiper function during driving. Through the control of this circuit, the accurate control of the functions such as the forward and reverse rotation of the wiper motor and the speed adjustment of the wiper motor can be realized. For example, when the high-speed switch is triggered, the controller can adjust the voltage difference or the current direction between the Motor+ end and the Motor- end to enable the wiper motor to rotate at a high speed, thereby meeting the wiper demand in heavy rain. When the low-speed switch is in the state, the motor rotates at a low speed to adapt to the light rain or light pollution.

[0033] In one embodiment, the internal circuit of the motor further comprises a water pump, and the PUMP+ end and the PUMP- end of the controller are connected with the two ends of the water pump.

[0034] In an embodiment, the motor internal circuit further includes a rain sensor, and the power supply end, the GND end, the CANH end and the CANL end of the controller are connected with the rain sensor, for detecting the size of rainfall, converting the detected rainfall information into an electrical signal, and transmitting the electrical signal to the controller through the connected line. After connecting the water pump, when it is necessary to spray water to clean the windshield, the water spraying switch is pressed, the controller supplies power to the water pump through the PUMP+ end and the PUMP- end to drive the water pump to operate, and the water pump sprays the windshield washer in the liquid storage tank to the windshield after pressurizing, which is used in cooperation with the windscreen wiper, can more effectively remove stubborn stains such as dust, soil, insect corpses and the like on the windshield. Compared with the way of relying only on the windscreen wiper to spray water, the operation of combining water spraying and water spraying can greatly improve the cleaning effect and ensure that the driver's vision is clearer. The pressure generated by the water pump can spray the windshield washer to a long distance and a large range, which can not only cover the entire windshield, but also clean the edges of the windshield and other parts such as the rearview mirror to a certain extent, which helps to maintain the overall clarity of the front view of the vehicle, reduces the blind area, and improves the driving safety. The connection between the controller and the water pump can monitor and control the working state of the water pump, and when the water pump has abnormal conditions such as blockage, water leakage and the like, the controller can cut off the power supply in time to prevent the water pump from being damaged due to overload. At the same time, this monitoring and protection mechanism can also remind the driver to check the working state of the water pump, so as to find and solve the problem in time and prolong the service life of the water pump.

[0035] The application further provides a vehicle comprising the wiper motor control device as described in the above embodiments, which will not be repeated here.

[0036] The embodiments of the utility model have been described in detail above in combination with the drawings, but the utility model is not limited to the above embodiments. Even if various changes are made to the utility model, if the changes fall within the scope of the claims of the utility model and equivalent technologies, they still fall within the protection scope of the utility model.

Claims

1. A wiper motor control device, characterized in that, It includes an MCU module and a power filter circuit, a CAN filter module, a PCB temperature sensor, a debugging interface, a power reverse protection module, an H-bridge drive module, a voltage divider circuit, a current filter circuit, a current sensor, and a motor, all connected to the MCU module. The MCU module includes a power management module, a CAN transceiver, an ADC module, an H-bridge pre-driver chip, and an operational amplifier. An external 24V power supply is connected to the first input terminal of the power filter circuit. One output terminal of the power filter circuit is connected to the first input terminal of the power management module, and the other output terminal of the power filter circuit is connected to the motor via the power reverse protection module and the H-bridge drive module. The GND power supply is connected to the second input terminal of the power filter circuit. One output terminal of the power filter circuit is connected to the second input terminal of the power management module, and the other output terminal of the power filter circuit is connected to the motor via the power reverse protection module and the H-bridge drive module. The input terminal of the H-bridge drive module is connected to the output terminal of the H-bridge pre-driver chip. The output terminal of the H-bridge drive module is connected to the input terminal of the voltage divider circuit. The output terminal of the voltage divider circuit is connected to the first input terminal of the ADC module. The output terminal of the motor is connected to the input terminal of the current sensor. The output terminal of the current sensor is connected to the input terminal of the current filter circuit. The output terminal of the current filter circuit is connected to the input terminal of the operational amplifier. The output terminal of the operational amplifier is connected to the second input terminal of the ADC module. The output terminal of the ADC module is connected to the input terminal of the PCB temperature sensor.

2. The wiper motor control device as described in claim 1, characterized in that, The MCU module also includes a CAN transceiver. External CAN signals are connected to the input of the CAN filter module, and the CAN filter module is interactively connected to the CAN transceiver.

3. The wiper motor control device as described in claim 1, characterized in that, The MCU module also includes an SWD module, and the output of the debug interface is connected to the input of the SWD module.

4. The wiper motor control device as described in claim 1, characterized in that, The H-bridge drive module consists of an H-bridge structure composed of four power switching transistors. It is used to change the direction and magnitude of the current in the motor windings by controlling the conduction and cutoff sequence of the four switching transistors, thereby realizing the forward and reverse rotation and speed regulation functions of the motor.

5. The wiper motor control device as described in claim 1, characterized in that, The internal circuit of the motor includes a wiper motor assembly formed by connecting a controller and a wiper motor.

6. The wiper motor control device as described in claim 5, characterized in that, The internal circuit of the motor also includes a switch group, which includes a water spray switch, an automatic mode switch, an intermittent switch, a high speed switch, a low speed switch, and a car wash switch.

7. The wiper motor control device as described in claim 6, characterized in that, The controller's spray port is connected to the spray switch, the controller's automatic mode port is connected to the automatic mode switch, the controller's intermittent port is connected to the intermittent switch, the controller's high-speed port is connected to the high-speed switch, the controller's low-speed port is connected to the low-speed switch, the controller's car wash port is connected to the car wash switch, and the controller's Motor+ and Motor- terminals are respectively connected to the two ends of the motor itself.

8. The wiper motor control device as described in claim 5, characterized in that, The internal circuit of the motor also includes a water pump, and the PUMP+ and PUMP- terminals of the controller are connected to the two ends of the water pump.

9. The wiper motor control device as described in claim 5, characterized in that, The internal circuit of the motor also includes a rain sensor. The power supply terminal, GND terminal, CANH terminal and CANL terminal of the controller are respectively connected to the rain sensor to detect the amount of rainfall, convert the detected rainfall information into an electrical signal, and transmit it to the controller through the line connected to the controller.

10. A vehicle, characterized in that, Includes the wiper motor control device as described in any one of claims 1 to 9.

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