Method for detecting an object in an environmental region of a motor vehicle with estimation of the height of the object based on echo components of a received signal, computing device, ultrasonic sensor and driver assistance system

摘要

The invention relates to a method for detecting an object (8) in a surrounding area (9) of a motor vehicle (1), in which an ultrasonic sensor (4) is actuated to emit an ultrasonic signal, a reception signal (10) is determined which has a time profile of the ultrasonic signal reflected in the surrounding area (9), the received signal (10) is compared with a threshold curve (17) and if a first echo portion (18) of the received signal (10) exceeds the threshold curve (17), it is assumed that this first Echo portion (18) describes an echo of the object (8) reflected ultrasonic signal, wherein if the first echo portion (18) exceeds the threshold curve (17), regardless of the threshold curve (17) is checked whether the received signal (10) in at least a predetermined window (20a, 20b) has a second echo portion (19) which at least one signal tip of the received signal (10) beschrei bt, and a height of the object is estimated from the first echo component (18) and / or the second echo component (19).