Volkswagen Ag

Roy Lamping

Olaf Hinz

Laurens Hufer

Frank Schwitters

Michael Wistrach

Janine Bossdorf-Zimmer

Dirk Stüker

Thomas Weidner

The invention relates to a method for estimating a current wheel circumference of at least one wheel arranged on a vehicle, said method comprising: determining a reference speed of the vehicle at a point in time by means of a reference apparatus, detecting a wheel rotational speed of the at least one wheel at said point in time by means of a wheel rotational speed sensor, estimating a single wheel-circumference value based on the determined reference speed and the detected wheel rotational speed for said point in time by means of a calculation apparatus, storing at least the estimated single wheel-circumference value in a circular buffer for said point in time, estimating a current wheel circumference based on the single wheel-circumference values stored in the circular buffer by the calculation apparatus, outputting the estimated current wheel circumference as a wheel circumference signal.

Method and device for estimating a current wheel circumference of at least one wheel arranged on a vehicle

A method and a device for handing over a motor vehicle to the driver during an automatic parking space-leaving maneuver performed by an automatic parking function. The method includes receiving an external parking space-leaving signal reflecting the driver's wish to get the motor vehicle out of the parking space, initializing the parking space-leaving maneuver and supplying an operating voltage to all vehicle components as a result of the reception of the parking space-leaving signal, carrying out the parking space-leaving maneuver from a parked position into a target position, switching off the voltage supply to predetermined vehicle components once the target position has been reached; and connecting the voltage supply to all vehicle components when the driver performs predetermined actions upon getting into the vehicle in the target position.

Method and device for handing over a motor vehicle to the driver during an automatic parking space-leaving maneuver

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Braunschweig, Germany

Roy Lamping