Design and Experimental Research of a New Bistable Electronic Parking Brake System for Commercial Vehicles

To further solve the problems of commercial vehicle electronic parking brake systems under typical operating conditions, such as manual parking/release, emergency parking, ramp parking leakage, and so on, a new bistable electronic parking brake system (EPB) is proposed and studied in this paper. First, the principle of the proposed bistable electronic parking brake system is described. Then, the control parameters of the electronic parking brake system are presented in detail, and the design scheme of the automatic parking/release control strategy is listed. Subsequently, an experimental road test system is designed, and the excellent performance of the designed bistable EPB is demonstrated by said road experiments. The research results show that the presented bistable EPB can effectively solve the problems of high-speed parking and ramp parking failure and significantly improve the braking safety of the whole vehicle.