Patent ID: 9371061
Filing Date: 2016-06-21
CPC Classification: B60L,B60T,Y02T,Y10S

Claim Text:
1. A regenerative braking apparatus of a vehicle, comprising: an engine that supplies power to front wheels of the vehicle; a hybrid starting generator (HSG) that starts the engine and generates electrical energy by operating as a power generator with the engine in operation; an engine clutch that is disposed between the engine and a transmission and selectively transmits the power from the engine to the front wheels; a motor that supplies power to rear wheels of the vehicle and generates electrical energy by operating as a power generator during braking of the vehicle; a battery that stores the electrical energy generated by the HSG and the motor; and a controller that causes a friction braking torque to be generated at the front wheels when a necessary braking torque at the front wheels is larger than a regenerative braking torque at the front wheels, and that causes a friction braking torque to be generated at the rear wheels when a necessary braking torque at the rear wheels is larger than a regenerative braking torque at the rear wheels, during braking of the vehicle, wherein the regenerative braking torque at the front wheels is set to the smaller one of: a) the necessary braking torque at the front wheels and b) a regenerative braking torque available at the front wheels−(a friction torque*a current gear ratio of the transmission), and the regenerative braking torque at the rear wheels is set to the smaller one of: a) a second regenerative braking torque available through the battery and b) a second regenerative braking torque available through the motor.