Height Sensors
The air suspension system uses 4 height sensors, 2 for the front suspension and 2 for the rear suspension. Front height sensors are attached with a bracket to the inside of the shock absorber assemblies on each side. The height sensors are connected by a sensor arm and sensor link to the related upper lateral-arm of the front suspension. Rear height sensors are attached to each side of the rear subframe. Rear height sensors are connected by a sensor arm and sensor link to the related lower control arm of the rear suspension.
Height Sensor
| ITEM | DESCRIPTION |
|---|---|
| 1 | Drop link |
| 2 | Lever arm |
| 3 | Electrical connector |
| 4 | Sensor body |
The suspension height sensors measure suspension displacement at each corner of the vehicle and output a corresponding analogue signal to the Chassis Control Module (CHCM). The software in the CHCM calculates the position of the signals and uses the results for height control.
On each height sensor, the sensor arm and sensor link convert linear movement of the suspension into rotary movement of the sensor shaft. The height sensors measure suspension displacement at each corner of the vehicle and output a corresponding analogue signal to the Chassis Control Module (CHCM). The software in the CHCM calculates the position, velocity and frequency content of the signals and uses the results for wheel control.
Each height sensor is connected to the CHCM via 3 wires, which supply ground, 5V supply and signal return.