In a propulsion control system for a motor vehicle for maintaining stable driving conditions, having means for determining the vehicle speed, having means for determining the steering angle, having means for determining the lateral acceleration and having processing means for producing control signals for the brakes of the wheels and for a power control element of an engine of the vehicle from output signals of the vehicle speed, steering angle and lateral acceleration determining means, the improvement being said processing means which comprises:
- a computer means for generating, from the steering angle and the vehicle speed, tolerance range of lateral acceleration as an output signal, and
- a comparator means for comparing the output signals of the computer means and of the determining means of the lateral acceleration and generating said control signals.