Patent ID: 7117963

Claim:
The apparatus for controlling a driving force of an electric vehicle comprising: a traction motor; a transmitting section which is disposed between said traction motor and a drive wheel, and which transmits a driving force of said traction motor to said drive wheel; a driving force calculating section which calculates the driving force of said traction motor on the basis of an operating state of a vehicle; a motor controlling section which controls said traction motor on the basis of the driving force calculated by said driving force calculating section, and a revolution number detecting section which detects a number of revolutions of said traction motor, wherein in a state where a change of the number of revolutions detected by said revolution number detecting section is equal to or smaller than a predetermined value and the driving force calculated by said driving force calculating section is equal to or larger than a predetermined value, when a driving duration time period of said traction motor reaches a predetermined time period, said motor controlling section reduces a transmission amount of the driving force of said traction motor which is transmitted through said transmitting section; and an inclination angle calculating section which calculates an inclination angle of a road surface, wherein said driving force calculating section calculates the driving force of said traction motor on the basis of the inclination angle calculated by said inclination angle calculating section, and the operating state of the vehicle.