Patent ID: 7344478
Filing Date: 2008-03-18
Classification: B60W,Y10T

Abstract:
1. A method for controlling start-up assistance, to prevent vehicle rolling during vehicle start up, for a vehicle with a transmission, an automatically controllable clutch, at least an automatically controllable brake affecting wheels of the vehicle, and a starting assistance controller that is automatically or manually activateable by a driver using a parking brake when the vehicle is stopped, and which controls the clutch and releases the automatically controllable brake during activation of an operating mode for starting, the method-comprising the steps of: determining at least one drive train actuator operating reaction value from at least one of: determining a desired clutch operating value, determining a clutch jerk degree value for the clutch, during vehicle start-up to prevent rolling of the vehicle during start-up, from the at least one drive train actuator operating reaction value and the desired clutch operating value, wherein the clutch jerk degree value represents a time interval between a start of engagement of the clutch and a start of disengagement of the automatically controllable brake initiated by an end of the clutch jerk degree value interval, and initiating disengagement of the automatically controllable brake during the clutch jerk degree interval.