Method for operating a driver assistance system that supports the driver during a coasting process in a motor vehicle and motor vehicle

摘要

Method for operating a driver assistance system (28) in a motor vehicle (7) which supports the driver during a coasting process, the drive train of which can be operated in a freewheeling operating mode in which a drive motor (34) is separated from the rest of the drive train by a separating clutch (35), With the driver assistance system (28) activated, when the driver finishes actuating the accelerator pedal and at least one roll-out target (9) requiring deceleration of the motor vehicle (7) is determined, an action plan comprising at least one measure for the targeted deceleration of the motor vehicle (7) is included Consideration of at least one effectiveness criterion related to the energy balance of the motor vehicle (7) and a target criterion related to the delay to the coasting target (9) as well as predictive route data describing the path to the coasting target (9) and used for longitudinal guidance of the motor vehicle (7) being, taking the measure men can be selected from a group of measures comprising at least one operation in freewheel mode and one operation in overrun mode, characterized in that a stopping position (16) is determined as the coasting target (9) and the action plan for decelerating the motor vehicle (7) to a standstill Stopping position (16) is determined, after reaching a standstill at the stopping position (16) the motor vehicle (7) is actively held for a predetermined period of time (25) by means of a stopping action and additionally a takeover notice for the manual stopping to the driver is issued.