Automobile controller quiescent current standard exceeding diagnosis method and device and vehicle

The embodiment of the invention provides an automobile controller quiescent current standard exceeding diagnosis method and device and a vehicle, and the method comprises the steps: starting a timer and monitoring a state corresponding to a state machine of a target controller under the condition that the sleep of an automobile bus is detected; if the state of the state machine of the target controller is continuously kept in the target state within the preset timing duration of the timer, it is determined that the target controller breaks down, and the method and device aim at solving the problems that in quiescent current standard exceeding diagnosis, diagnosis can only be conducted by reproducing an automobile fault, and consequently the troubleshooting difficulty is high, and the troubleshooting period is long. 本申请实施例提供了一种汽车控制器静态电流超标诊断方法、装置及车辆，所述方法包括：在检测到汽车总线睡眠的情况下，开启计时器并监控目标控制器的状态机对应的状态；若在所述计时器的预设计时时长内，所述目标控制器的状态机的状态持续保持在目标状态，则确定所述目标控制器故障，本申请旨在解决静态电流超标诊断必须汽车故障复现才能诊断，从而导致排查难度高、排查周期长的问题。