Method for functional testing of an ultrasonic sensor on a motor vehicle, method for operating an ultrasonic sensor on a motor vehicle, and distance measuring device having at least one ultrasonic sensor for use in a motor vehicle

摘要

In a method for functional testing of an ultrasonic sensor on a motor vehicle, the ultrasonic sensor is controlled in such a way that it emits an ultrasonic signal having a frequency of a secondary mode of the ultrasonic sensor, the ultrasonic signal is reflected by a surface in the region around the vehicle, and at least one transmission path or one transmitting unit of the ultrasonic sensor is classified as functional if the reflected signal is received by the ultrasonic sensor itself or by another ultrasonic sensor on the motor vehicle.

主权项

1. A method for functional testing of at least one of a first ultrasonic sensor and a second ultrasonic sensor on a motor vehicle, comprising:
controlling the operation of the first ultrasonic sensor in such a way that the first ultrasonic sensor emits an ultrasonic signal having a frequency of a secondary mode of the first ultrasonic sensor, wherein the emitted ultrasonic signal is reflected by a surface in a region around the vehicle; and classifying one of a transmission path or a transmitting unit of the first ultrasonic sensor as being functional if the reflected ultrasonic signal is received by one of the first ultrasonic sensor or the second ultrasonic sensor on the motor vehicle.