ANTI-PINCH DETECTION METHOD AND SYSTEM

The present invention provides an anti-pinch detection method and system. The method comprises: determining a first current change rate according to a current collected in the present current collection period and a current collected in a previous current collection period; determining a second current change rate according to the current collected in the present current collection period and a current collected in a target current collection period, there being N collection periods between the target current collection period and the present current collection period; detecting whether a closure component encounters an obstacle according to the second current change rate, and if yes, determining the stiffness of the obstacle according to the first current change rate; determining a real-time obstacle compression distance according to a contact position zero point and a motor position collected in real time; and determining a real-time anti-pinch force according to the stiffness of the obstacle and the real-time obstacle compression distance, and controlling a motor to reverse when the real-time anti-pinch force is greater than a preset anti-pinch detection threshold. The anti-pinch detection method provided in the present invention can satisfy S5 regulations, and the detection effect is good.