The invention discloses an electric power-assisted steering control method, device and equipment and a medium, and the method comprises the steps: carrying out the validity verification of a received high-pressure power-assisted steering oil pump operation state signal, and if the validity verification is not passed, sending a preset rated rotating speed instruction signal to a high-pressure power-assisted steering control unit, the high-pressure power-assisted steering motor is controlled to operate at a rated rotating speed, so that the high-pressure power-assisted steering oil pump can perform power-assisted steering; whether a low-pressure power-assisted steering oil pump is enabled or not is judged according to the current vehicle speed, the current rotating speed of the high-pressure power-assisted steering oil pump and the running state of the high-pressure power-assisted steering oil pump through a basic function layer of the vehicle control unit; a software monitoring layer of the vehicle control unit judges whether a low-pressure power-assisted steering oil pump is enabled or not according to the current vehicle speed, the current rotating speed of the high-pressure power-assisted steering oil pump and the running state of the high-pressure power-assisted steering oil pump subjected to validity verification; and if the judgment results of the basic function layer and the software monitoring layer on whether the low-pressure power-assisted steering oil pump is enabled or not are inconsistent, an enabling request is sent to a low-pressure power-assisted steering control unit, so that the low-pressure power-assisted steering oil pump is enabled to carry out power-assisted steering. According to the method, effectiveness verification is carried out on the operation state signal of the high-pressure power steering oil pump, redundancy verification is carried out on the enabling judgment result, the problem that the power steering is not switched from high pressure to low pressure in time due to the fact that the signal is not credible is solved, and the reliability and safety of the power steering are effectively improved.
本发明公开了一种电动转向助力控制方法、装置、设备及介质,该方法包括:对接收到的高压转向助力油泵运行状态信号进行有效性校验,若有效性效验未通过,则向高压转向助力控制单元发送预设的额定转速指令信号,以控制高压转向助力电机以额定转速运行使能高压转向助力油泵进行转向助力;通过整车控制器的基本功能层根据当前车速、高压转向助力油泵当前转速和高压转向助力油泵运行状态判断是否使能低压转向助力油泵;通过整车控制器的软件监控层根据当前车速、高压转向助力油泵当前转速和经过有效性校验后的高压转向助力油泵运行状态,判断是否使能低压转向助力油泵;若基本功能层和软件监控层对是否使能低压转向助力油泵的判断结果不一致,则向低压转向助力控制单元发送使能请求,以使能低压转向助力油泵进行转向助力。对高压转向助力油泵运行状态信号进行有效性校验以及对使能判断结果进行冗余校验,解决了由于信号不可信导致的转向助力由高压向低压切换不及时的问题,有效的提高了转向助力的可靠性和安全性。
Electric steering power-assisted control method, device, equipment and medium
一种电动转向助力控制方法、装置、设备及介质
2024-11-08
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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