The structure of the control strategy system is shown in Fig. 8. Through the pedal sensor, we can obtain the driver’s required braking force. According to the distribution regulations of braking force among front and rear wheels, the front braking force and the rear braking force can be calculated, respectively. According to the fuzzy logic controller, we can obtain the value of the regenerative braking force. Then, the front mechanical braking force, the regenerative braking force, and the rear braking force can be attained [8], [9].
At last, the regenerative braking force is translated into braking current through