Control system and control method based on motor resolver and wheel speed sensor
A wheel speed sensor and resolver sensor technology is applied in the field of control systems based on motor resolvers and wheel speed sensors. , the effect of improving longitudinal control performance
Active Publication Date: 2021-03-09
南京清研易为新能源动力有限责任公司
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[0004] However, the wheel speed signal determined by the vehicle controller of the traditional control system is an ideal signal. When the motor controller transmits the torque control signal generated by the ideal signal to the motor controller through the CAN bus, there are not only large The error will also cause the network time lag of the vehicle control
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[0041] Electric drive vehicles have the characteristics of high efficiency and low pollution. The development of electric drive vehicles can effectively solve the current social energy shortage, environmental pollution and traffic safety issues. Electric drive vehicles have become the main research direction of the automobile industry. Distributed electric drive and centralized Type electric drive is two types of drive forms used by electric drive vehicles. Compared with centralized electric drive, distributed electric drive has the advantages of improving drive train efficiency, reducing vehicle weight and improving fault tolerance. Distributed electric drive uses hub motors to directly drive wheels, and its vehicle controller (Vehicle Control Unit, VCU) can send torque and speed control signals to the motor controllers (Motor Control Unit, MCU) of each hub motor, and the MCU directly Control the torque and speed of each wheel with higher precision, so as to achieve more prec...
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The invention relates to a control system and a control method based on a motor resolver sensor and a wheel speed sensor. An anti-lock braking control module of the control system is integrated in a motor controller, and a wheel speed sensor is used for collecting a wheel speed signal of an electric wheel and sending the wheel speed signal to a vehicle control unit; the vehicle control unit is used for carrying out driving anti-skid control according to the wheel speed signal; the motor resolver sensor is used for collecting a motor rotating speed signal and sending the motor rotating speed signal to the motor controller; and the motor controller is used for carrying out driving motor control according to the motor rotating speed signal and carrying out anti-lock braking control accordingto a target conversion wheel speed signal corresponding to the motor rotating speed signal, wherein the target conversion wheel speed signal comprises a signal obtained after the motor rotating speedsignal is input into a preset torsional vibration equation. By adopting the system, the control precision and the response speed of vehicle control can be improved.
Description
technical field [0001] The present application relates to the technical field of electric vehicle control, in particular to a control system and control method based on a motor resolver and a wheel speed sensor. Background technique [0002] Electric drive vehicles have the characteristics of high efficiency and low pollution, and the development of electric drive vehicles can effectively solve the current social energy shortage, environmental pollution and traffic safety issues; and, since distributed electric drive and centralized electric drive are the Compared with the centralized electric drive, the distributed electric drive has the advantages of improving the efficiency of the drive train, reducing the weight of the vehicle and improving fault tolerance. Therefore, it is particularly important to use the distributed electric drive to achieve precise control of the vehicle. [0003] In the traditional motor control system, the anti-lock braking control module is in the...
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IPC IPC(8): B60L15/20B60T8/176B60T8/1761
CPCB60L15/20B60L15/2009B60T8/176B60T8/1761Y02T10/72
Inventor 李航李建秋胡家毅李景康刘树成李园园宋金鹏徐梁飞欧阳明高
Owner 南京清研易为新能源动力有限责任公司