Patent ID: 8755982
Filing Date: 2014-06-17
Classification: B60W

Abstract:
1. A distance controller having an automatic stop and/or start function for a motor vehicle, comprising: a distance-measuring remote region sensor; a distance-measuring ultrasound sensor; and a control unit adapted to intervene in a longitudinal guiding of the vehicle as a function of a distance, measured by the remote region sensor, from a vehicle traveling ahead, and, if the measured distance is less than a range of the ultrasound sensor, to verify based on a signal from the ultrasound sensor that the ultrasound sensor is functional, and then to evaluate a signal of the ultrasound sensor in the context of at least one of a stop and start function, wherein the at least one of the stop and start function has an operating mode in which a distance controlling takes place based on the signal of the ultrasound sensor, wherein the control unit is adapted to brake the vehicle to a standstill through longitudinal guiding based on the signal of the remote region sensor in such a way that the vehicle comes to a standstill at a first stop distance that is less than a maximum range of the ultrasound sensor if it has been determined that the vehicle traveling ahead is stopping or is at a standstill, and, given acquisition by the ultrasound sensor of the vehicle traveling ahead, to go into an operating mode in which, with longitudinal guiding based on the signal of the ultrasound sensor, in a creep travel mode the distance from the vehicle traveling ahead is further reduced until the vehicle is brought to a standstill at a smaller, second stop distance.