The invention discloses a steering wheel power-assisted steering method and device, and relates to the technical field of electric power-assisted steering systems. The method comprises the following steps: judging whether a torque sensor has a fault or not; if yes, determining a first steering wheel corner value corresponding to the steering wheel according to the reduction gearbox transmission ratio, the current motor rotor position corresponding to the motor and the zero-point motor rotor position; collecting a second steering wheel angle value corresponding to the steering wheel through a steering wheel angle sensor; according to the first steering wheel turning angle value and the second steering wheel turning angle value, a replacement torque value corresponding to the steering wheel is determined; and a first output current value is calculated according to the replacement torque value, and a motor is controlled to output corresponding steering wheel power steering according to the first output current value.
本申请公开一种方向盘转向助力方法及装置,涉及电动转向助力系统技术领域。本申请的方法包括:判断力矩传感器是否发生故障;若是,则根据减速箱传动比、电机对应的当前电机转子位置和零点电机转子位置,确定方向盘对应的第一方向盘转角值;通过方向盘转角传感器采集所述方向盘对应的第二方向盘转角值;根据所述第一方向盘转角值和所述第二方向盘转角值,确定所述方向盘对应的替代力矩值;根据所述替代力矩值计算第一输出电流值,并根据所述第一输出电流值控制电机输出相应的方向盘转向助力。
Steering wheel power-assisted steering method and device
方向盘转向助力方法及装置
2023-05-16
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
European Patent Office | 2023
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