System Working Principle; Reverse Radar Control Unit Functions; Sensor-Driven Sequence; Reverse Radar Display - Geely EC718 2009 Workshop Manual

11-464 Reverse Radar

11.14.3 System Working Principle

11.14.3.1 Reverse
Functions
– Produce TX Signal To Drive The Sensor Work
–
Receive The RX Signal From The Obstacle
– Compare The RX Signal With The Reference Level
– Send Alarm According To The Detected Obstacles
Distance
–
Sensor Fault Diagnosis
– Drive Buzzer Alarm
– Provide Sensor Drive Voltage

11.14.3.2 Sensor-Driven Sequence

Five-Step Cycle:
Left Corner Sensor=Left Corner Sensor;
Left Middle Sensor=Left Middle Sensor;
Right Middle Sensor=Right Middle Sensor;
Right Corner Sensor=Right Corner Sensor;
Right Middle Sensor=Right Middle Sensor.

11.14.3.3 Reverse Radar Display

Reverse radar indicator in the instrument cluster is on the LCD
lower half right side. When reversing, the reverse radar
indicator blinks with 1Hz frequency on the LCD.
ODO
EC718/EC718RV EC715/EC715RV 10/2009
Radar Control Unit
km
FE11-1204b
Reverse radar sign and odometer sign share a car icon on the
LCD. Displaying the reverse radar and the odometer have
conflict. When reverse radar is displayed, the odometer display
will be temporarily unavailable, as shown above. This principle
also applies to travel time and reverse radar conflict.
ODO
When reversing, if the the middle row does not display the time
or odometer, then there is no conflict, the middle row displays
the normal value, as shown above.

11.14.3.4 Buzzer Driver

Buzzer is integrated within the instrument cluster, and
connected to the reverse radar control module through cable.
Body Electric
km
km
FE11-1205b