Patent ID: 8504268
Filing Date: 2013-08-06
Classification: B60T

Abstract:
1. A method for applying a parking brake of a vehicle depending on the roadway conditions, in which at least one electromechanical braking system having a parking brake function and a service brake function is provided for braking the wheels of the vehicle, in which a service brake force is generated on each wheel in order to brake the vehicle to a standstill, wherein a parking brake force can be generated on at least two wheels of the vehicle by the at least one electromechanical braking system, that the method comprising: applying a service brake force to each wheel of the vehicle to provide a first service force distribution among the wheels; determining a first total service brake force comprising a total of the service brake forces applied to all of the wheels; redistributing the service brake forces among at least two of the wheels to provide a second service force distribution among the wheels that is different from the first service force distribution, wherein the second service force distribution provides a second total service brake force that corresponds to the first total service brake force; testing whether the vehicle is in a stop position; and when the vehicle is maintained in the stop position, redistributing the second total service brake force to parking brake forces by (a) reducing the service brake forces on the wheels and, (b) building up parking brake forces on at least one wheel, the built up parking brake forces corresponding to the reduction in the service brake forces; and wherein the amount of the service brake forces and parking brake forces are reduced or built up gradually or continuously.