to obstacles near the front or rear bumper of the vehicle when parking or travelling at a slow
speed. The system provides an assistance to the driver when parking in order to help avoid
collision with obstacles.
The sensor range at the front of the vehicle should be 0.8 meters and the sensor range at the
rear of the vehicle should be 1.8 meters. This should extend the full width of the rear bumper
and reduce to 50 cm at the vehicle corners. The vertical range is adequate to protect the
highest and lowest points of the front and 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 parking 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 the reverse gear is selected.
The parking aid system comprises of:
•
a module mounted in the spare wheel well just rearward of the spare tyre.
•
four rear bumper mounted sensors which have a straight electrical connector plug.
•
four front bumper mounted sensors of which the two inner sensors have a 90° angled
electrical connector in order to give clearance to the bumper reinforcing frame.
•
two audible speakers, one mounted on the rear parcel shelf and the other mounted
behind the speedo binnacle.
•
a cancellation switch that is mounted into the roof console. This is fitted for the driver
to disable the system when in slow moving traffic. This stops the front parking aid
continuously monitoring the vehicle in front, however, the system will only stay
inoperative whilst the vehicle is moving or when the ignition switch is reset OFF or
ON.