The invention discloses an EPS torque sensor zero torque deviation self-learning and correcting method and system and a vehicle. The EPS torque sensor zero torque deviation self-learning and correcting system comprises an electric power steering system, a steering wheel angle sensor and a braking electric control unit. The electric power steering system comprises a torque sensor and a torque zero position self-learning module which are used for judging the achievement condition of a self-learning condition, correcting a torque zero position and outputting a torque signal; the steering wheel angle sensor outputs a steering wheel angle effective signal, a steering wheel angle position signal and a steering wheel rotating speed signal, and the torque zero position self-learning module judges the position state and the rotating state of a steering wheel according to the signals output by the steering wheel angle sensor; the torque sensor is used for outputting a steering wheel steering torque signal; the braking electronic control unit outputs a vehicle speed effective signal and a vehicle speed signal, and the torque zero position self-learning module judges the vehicle running state according to the signal output by the torque zero position self-learning module. According to the invention, the zero torque deviation self-learning and correction of the torque sensor are realized.
本发明公开了一种EPS扭矩传感器零位扭矩偏差自学习及纠正方法、系统及车辆,包括电动助力转向系统、方向盘转角传感器和制动电控单元;电动助力转向系统包含扭矩传感器和扭矩零位自学习模块,用于判断自学习条件达成情况、纠正扭矩零位及输出扭矩信号;方向盘转角传感器输出方向盘转角有效信号、方向盘转角位置信号、方向盘转速信号,扭矩零位自学习模块根据方向盘转角传感器所输出的信号判断方向盘位置状态及转动状态;所述扭矩传感器用于输出方向盘转向扭矩信号;所述制动电控单元输出车速有效信号、车速信号,扭矩零位自学习模块根据扭矩零位自学习模块所输出的信号判断车辆行驶状态。本发明实现了扭矩传感器零位扭矩偏差自学习及纠正。
EPS torque sensor zero torque deviation self-learning and correcting method and system and vehicle
EPS扭矩传感器零位扭矩偏差自学习及纠正方法、系统及车辆
2021-08-20
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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