Collision Avoidance and Parking Assist Systems: Description and Operation

The function of the parking aid is to provide an audible warning to the driver of the distance to obstacles near the rear bumper of the vehicle when reversing. The system provides an assistance to the driver when reversing in order to help avoid collision with obstacles.

The sensor range at the rear of the vehicle is 1.8 meters. This extends the full width of the rear bumper and reduces to 60 cm, at the vehicle corners. The vertical range is adequate to protect the highest and lowest points of the rear of the vehicle. The system will detect curbs with heights of at least 18 cm. Obstacles, such as curbs, that are low enough to pass under the vehicle until they make contact with the tires will not be detected.

The system activates a specific speaker with a tone signifying the distance to the obstacle. The tone consists of a beep and defined space ratio which varies depending on the calculated distance. When the distance to the obstacle is less than 20 cm the speaker tone is continuous.

The reversing aid is continuously in operation unless towing when the system automatically switches off. If the reverse aid develops a fault the tone will sound continuously for three seconds when the ignition is switched on or when the reverse gear is selected.