Method and control device for recognizing an object in a surroundings of a vehicle

A method for recognizing an object in a surroundings of a vehicle comprising an ultrasonic sensor for monitoring the surroundings of the vehicle and for transmitting and receiving ultrasonic signals, the method comprising:

• receiving passive ultrasonic signals with the ultrasonic sensor, the passive ultrasonic signals do not originate from the ultrasonic sensor;
• generating ultrasonic sensor data with the ultrasonic sensor based on the received passive ultrasonic signals;
• receiving the ultrasonic sensor data generated by the ultrasonic sensor with a control device of the vehicle;
• generating classification data that contain features to be classified based on only the ultrasonic sensor data using an evaluation unit of the control device, the classification data including echo data and/or position data;
• entering the classification data and/or the ultrasonic sensor data into a classifier unit of the control device;
• assigning the classification data and/or the ultrasonic sensor data to at least one object class to generate object information using the classifier unit, the at least one object class corresponding to the recognized object;
• and
• outputting the object information from the control device,
• wherein the passive ultrasonic signals include noises in the surroundings of the vehicle, and
• wherein the object information identifies when a road on which the vehicle is driving is a wet road and when the road on which the vehicle is driving is a dry road.