METHOD FOR RECOGNIZING A BLOCKED STATE OF AN ULTRASONIC SENSOR, ULTRASONIC SENSOR DEVICE AND MOTOR VEHICLE

摘要

The invention relates to a method for recognizing a blocked state of an ultrasonic sensor (3) of a motor vehicle (1), in which an actual value detects at least one vibration parameter (fR) of the ultrasonic sensor (3) and is compared to a reference value for recognizing the blocked state by means of an evaluation device (4). An actual temperature (T) is detected by means of a temperature detection device (8) to which the ultrasonic sensor (3) is exposed, and the reference value is determined independently from the actual temperature (T) by means of the evaluation device (4).