Patent ID: 7722135

Claim:
A braking system for a vehicle comprising: a brake reservoir to receive brake oil therein; a normal close type valve to connect the brake reservoir to an inlet of a pump generating a hydraulic pressure in a brake line; a drive motor serving as a generator, the drive motor being adapted to convert a kinetic energy of the vehicle into electric energy to brake the vehicle by regenerative braking; and a control unit to recognize the amount of regenerative braking obtained by the drive motor and the amount of braking desired by a vehicle operator and to control the normal close type valve so as to compensate for a brake hydraulic pressure corresponding to a difference between the regenerative braking amount and the desired braking amount by use of the brake oil in the reservoir, wherein the control unit is configured to open the normal close type valve to direct the hydraulic pressure generated in the brake line to the brake reservoir in an initial stage of braking.