A drive-by-wire hydraulic braking system with a motor stalling protection device and a control method are used for improving the reliability of the braking system, and when a vehicle is in a braking working condition, an electronic control unit calculates the magnitude of braking force according to signals of a pedal displacement sensor, a pedal speed sensor, a vehicle speed sensor and a wheel speed sensor; and the feedback motor controller is used for controlling the feedback motor to generate road feel, and the brake actuator controller is used for controlling the motor to output brake force. When the electronic control unit diagnoses that the motor is in a locked-rotor working condition according to the torque sensor and the speed sensor, the electronic control unit achieves the purposeof controlling the magnetorheological fluid viscosity and the shear yield strength by controlling the current of the magnet exciting coil, and therefore locked-rotor protection of the motor is achieved.
一种含电机堵转保护装置的线控液压制动系统及控制方法,用于提高制动系统可靠性,当车辆处于制动工况下,电子控制单元根据踏板位移传感器、踏板速度传感器、车速传感器、轮速传感器信号,计算制动力大小,并利用反馈电机控制器控制反馈电机生成路感,利用制动执行器控制器控制电机输出制动力。当电子控制单元根据力矩传感器、速度传感器诊断处电机处于堵转工况时,电子控制单元通过控制励磁线圈电流大小达到达到控制磁流变液粘性和剪切屈服强度的目的,从而实现电机的堵转保护。
Drive-by-wire hydraulic braking system with motor stalling protection device and control method
一种含电机堵转保护装置的线控液压制动系统及控制方法
2020-11-17
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
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