PRINCIPLE OF OPERATION OF PARKING
SENSOR EPS ® 
PURPOSE
This
device is designed to provide effective help in reversing maneuvres
often difficult for the little rear visibility of some cars in helping
significantly the driver especially in the insertion between two
parked cars when the space available is very small.
OPERATION
The
parking sensors EPS ®, produced exclusively by PROXEL, are based on
an innovative concept that uses electromagnetic waves with low energy.
When reverse gear is selected the small control unit generates an electromagnetic field and transfers this to the transceiver adhesive strip that is placed on the inner side of and run the length of your bumper.
The magnetic strip, called antenna sensor, then sends out an elliptical electric field to cover the full area around your bumper. The transceiver strip works by sending and receiving unlike ultrasonic parking and reverse sensors that require 2 types of sensors, one to send and one to receive; if they become dirty the ultrasonic performance can deteriorate.
An obstacle is then monitored by the control unit by translating its approaching to the bumper into a voltage. When an object with a certain mass (i.e. people, kerbs, cars, etc) enters this elliptical zone, a perturbation of the electric field is created and an increase in voltage is detected by the control unit and you are then informed by a series of audible tones how close you are to the object. You can then manoeuvre accordingly with plenty of time to react.

The parking sensor
EPS ® is able to detect the approach of an obstacle to bumper
along its entire length without any point of discontinuity.
It
is a useful device that saves bumpers, particularly those painted,
because can signal the obstacle until a few inches before contact and
you can approach just to the last inch.
His most congenial
applicability is right inside the bumper of a car that was born to
protect it from impact against any obstacle and it has become
today almost only a matter of style and decoration. In fact the
installation of the parking sensor EPS ® does not alter the
aesthetics of the bumper.
The alert and alarm
sounds are generated only when the vehicle is approaching to the
obstacle. A fixed object in front of the bumper, for example the
towing hook, is not detected and not disturb the normal
functioning of the device. It's the only Parking Sensor available that
is compatible with vehicles that have a tow bar fitted.
The electronic
control unit can be easily mounted in the luggage compartment of the
car due to its small size d 'space (less than a package of
cigarettes). The antenna sensor is also absolutely invisible and
protected and not subject to possible damages being installed inside
the bumper.
The electrical connections are
minimized: it is only necessary to connect the wires that feed the
electronic unit to the reverse gear lamp.
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