Patent ID: 7416037

Claim:
A method of regulating a driving speed of a vehicle having at least one electric motor/generator, as a function of at least its actual speed and the required setpoint speed, the method comprising: determinating the actual speed, the setpoint speed being adjustable; comparing the actual speed with the setpoint speed; if the actual speed is greater than the setpoint speed, decelerating the vehicle by operating the electric motor/generator as a generator; if the actual speed is less than the setpoint speed, operating the electric motor/generator as a motor; and wherein at least one of a short-term fluctuation and a minor fluctuation in the driving torque required to keep the vehicle at a constant speed are compensated exclusively by the at least one electric motor/generator; whereby, after a certain period of time during which fluctuations in the driving torque are compensated exclusively by the at least one electric motor/generator, the torque of the internal combustion engine is regulated up or down via an integrator, and a contribution of the at least one electric motor/generator to a total driving torque is returned to zero.