Development of regenerative braking co-operative control system for automatic transmission-based hybrid electric vehicle using electronic wedge brake

This research proposes a regenerative braking co-operative control system for the automatic transmission (AT)-based hybrid electric vehicle (HEV). The brake system of the subject HEV consists of the regenerative braking and the electronic wedge brake (EWB) friction braking for the front wheel, and the hydraulic friction braking for the rear wheel. A regenerative braking co-operative control algorithm is suggested for the regenerative braking and friction braking, which distributes the braking torque according to the driver´s demand. A vehicle test was performed to evaluate the proposed braking system and cooperative control algorithm.