Speed control unit for motor vehicle engine, has braking system with control output controlling additional effect of braking when torque of engine brake delivered by engine is insufficient for restoring or maintaining speed below set speed

摘要

The unit has a vehicle braking system (Af) with a control output controlling an additional effect of braking when the torque of engine brake (Am) delivered by an engine of the vehicle is insufficient for restoring or maintaining a speed below a set speed (VC). An acceleration determination module determines an acceleration to be applied to the vehicle, and an acceleration distribution module (4) determines acceleration parts allocated to the engine brake and the braking system, respectively.