METHOD FOR OPERATING A DRUM BRAKE, CONTROL UNIT, AND FRICTION BRAKE

原文（中国語）

A method for operating an electromechanical drum brake including at least two brake shoes of a motor vehicle. In the method, a static force-path characteristic curve of the brake shoes for increasing and decreasing the braking force is ascertained as a hysteresis curve when the motor vehicle is at a standstill; at least one stiffness and one friction value of at least one of the brake shoes are ascertained as parameters as a function of a course of the static force-path characteristic curve; as a function of the ascertained parameters, a dynamic force-path characteristic curve is ascertained using a physical substitute model of the drum brake, and for satisfying a braking request, the drum brake is controlled as a function of the dynamic force-path characteristic curve.