Method, device and equipment for automatically calibrating zero point of position sensor

The invention discloses a position sensor zero point automatic calibration method, device and equipment. The method is applied to the motor controller, the motor controller comprises at least one position sensor, the motor controller is used for executing automatic calibration on the at least one position sensor, and the method comprises the following steps: performing high-frequency injection detection on the position sensor, and performing zero point position calibration detection on the position sensor according to preset judgment so as to perform zero point position calibration on the zero point of the position sensor. By means of the technical scheme, the functions of early-stage diagnosis and later-stage fault elimination of vehicle faults are achieved, if calibration fails, the motor controller can automatically enter the safety state, and the safety of an electric control system is guaranteed. 本申请公开了一种位置传感器零点自动校准方法、装置和设备。所述方法应用于电机控制器，所述电机控制器包括至少一个位置传感器，所述电机控制器用于对所述至少一个位置传感器执行自动校准，所述方法包括：对所述位置传感器进行高频注入