The invention discloses a method for safely degrading internal communication faults of a full-redundancy electric power steering system, the full-redundancy electric power steering system comprises a main path system, an auxiliary path system and a six-phase motor, and the main path system and the auxiliary path system respectively control three phases of the six-phase motor; the main path system and the auxiliary path system carry out real-time information interaction through six communication channels, the communication channels comprise a UART serial port communication channel, a private CAN communication channel and a PWM communication channel, the UART serial port communication channel, the private CAN communication channel and the PWM communication channel are respectively divided into a TX channel and an RX channel, the TX channel is a sending channel, and the RX channel is a receiving channel; the full-redundancy electric power steering system controls the change of the working mode of the full-redundancy electric power steering system according to the faults of the six different communication channels; the working modes comprise a mode 0, a mode 1, a mode 2, a mode 3, a mode 4 and a mode 5 in sequence from high to low.
本发明公开了一种全冗余电动助力转向系统内部通信故障安全降级的方法,所述全冗余电动助力转向系统包括主路系统、辅路系统和6相电机,主路系统和辅路系统分别控制6相电机的3相;所述主路系统和辅路系统通过六个通信通道进行实时信息交互,通信通道包括UART串口通信通道、私CAN通信通道和PWM通信通道,UART串口通信通道、私CAN通信通道和PWM通信通道各自分为TX通道和RX通道,TX通道为发送通道,RX通道为接收通道;所述全冗余电动助力转向系统根据六个不同通信通道的故障控制全冗余电动助力转向系统的工作模式的变更;所述工作模式的级别从高到低依次包括模式0、模式1、模式2、模式3、模式4、模式5。
Method for degrading internal communication failure safety of full-redundancy electric power steering system
全冗余电动助力转向系统内部通信故障安全降级的方法
2024-02-09
Patent
Electronic Resource
Chinese
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