Method for measurement of distance or velocity of object relative to vehicle, involves emitting ultrasonic pulse, which is reflected by object

摘要

The method involves emitting an ultrasonic pulse, which is reflected by an object (H). The ultrasonic pulses are received and echoed back. The transmission of another ultrasonic pulse is triggered by receiving the echoes of a former previously emitted ultrasonic pulse. An independent claim is included for a device for measurement of distance or velocity of an object relative to a vehicle.