The invention provides a storage circuit, a controller and an automobile, the storage circuit is a hardware circuit design, when short-time power failure occurs, a write-in enable switch circuit of the storage circuit is switched on, and then a state latch circuit of the storage circuit latches a power failure undervoltage state corresponding to the short-time power failure, so that after the short-time power failure is recovered, the short-time power failure of the storage circuit is recovered. The microcontroller module of the controller can read whether short-time power-down and under-voltage faults occur or not from the storage circuit, so that the functional safety of the controller is ensured.
本发明提供一种存储电路、控制器和汽车,该存储电路为硬件电路设计,在发生短时掉电时,其写入使能开关电路导通,进而使其状态锁存电路将短时掉电对应的掉电欠压状态锁存,由此在短时掉电恢复后,可以使得控制器的微控制器模块能从该存储电路中读取之前是否有短时掉电欠压故障发生,进而保证控制器的功能安全。
Storage circuit, controller and automobile
存储电路、控制器和汽车
2023-01-10
Patent
Electronic Resource
Chinese
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