Parking spot determining device for e.g. car, has transducer to measure free space before vehicle, where adaptation of time interval between signals of transducer is initiated by another transducer during approximation at obstacle

摘要

The device has a lateral ultrasonic transducer (10) to determine a lateral free space adjacent a searching motor vehicle (8), and transmit and receive measuring signals. The transducer is arranged downstream a sensor circuit that determines duration of the signals reflected from an object. A front ultrasonic transducer (11) measures a free space before the vehicle. An adaptation of a time interval between the signals of the transducer (10) following a signal propagation delay is initiated by the transducer (11) during an approximation at an obstacle e.g. post (7), confining a parking spot (6).