Method for operating an ultrasonic sensor device for a motor vehicle with change between coded and uncoded measurements, ultrasonic sensor device and driver assistance system

摘要

The invention relates to a method for operating an ultrasonic sensor device (3) for a motor vehicle (1), in which measurements are carried out continuously in a first operating mode with at least one ultrasonic sensor (4) of the ultrasonic sensor device (3) Ultrasound sensor (4) an ultrasonic signal is emitted and in an environment (9) of the motor vehicle (1) reflected ultrasonic signal is received and wherein in the first operating mode both encoded measurements in which the ultrasonic signal is emitted coded, as well as uncoded measurements, in which the ultrasonic signal is transmitted uncoded, which is changed from the first operating mode to a second operating mode, if it is detected that an object (8) in a predetermined short range (10) in the environment (9), wherein the second operating mode with the at least one ultrasound llsensor (4) only uncoded measurements are carried out.