Method for ensuring the immobilizing of the vehicle by means of a vehicle electromechanical decentralized parking brake system

Method for checking that a vehicle is stopped or that the brakes of a vehicle with a decentralized electromechanical braking system (20) are working properly. According to the method if an insufficient braking force is applied to a parking brake (4) to ensure that the vehicle remains stationary, then a monitoring and control unit causes an additional brake unit (3a, 3b) to be applied. The invention also relates to a corresponding microcomputer for controlling braking and a control unit for ensuring a vehicle is stationary when parked. If the control unit determines that due to changes in temperature or other effects, the force applied by a park brake is not sufficient it can cause a further brake to be applied to ensure the vehicle is stationary.