Patent ID: 6126251
Filing Date: 2000-10-03
Classification: B60L,B60W,Y02T

Abstract:
A brake controlling apparatus for an electric vehicle for transferring torque of an electric motor to wheels via a transmission, the brake controlling apparatus comprising:regenerative brake controlling means for furnishing a regenerative braking force to a vehicle by causing the electric motor to generate regenerative torque;transmission controlling means for performing gear shifting control to switch a stage of gear of the transmission on the basis of a gear shifting operation by a driver, thereby changing the regenerative braking force according to the stage of gear; andfriction brake controlling means for controlling a friction braking force from a friction brake, and furnishing to the vehicle the friction braking force equivalent to the difference between a required braking force required by the vehicle and the regenerative braking force;wherein, during gear shifting control corresponding to the occurrence of said gear shifting operation the regenerative brake controlling means sets the regenerative torque essentially to zero, andthe friction brake controlling means supplements with friction braking force the regenerative braking force that was furnished to the vehicle prior to gear shifting control.