Sensor System

Lateral Acceleration Sensor: The lateral acceleration sensor is located under the carpet in front Of the passenger's seat (1). While cornering, the vehicle's lateral acceleration is measured (range is ± 1.1 g).




Transversal acceleration (yaw velocity) is provided by the Rotation Rate Sensor (2) via the DSC control module.

Front and Rear Axle Stabilizer Bar Pressure Sensors: The pressure sensors provide the ARS control module with the front (1 below left) and rear (2 below left) axle stabilizer bar hydraulic operating pressures. The sensors are mounted on the valve block assembly and the pressure values are initialized in the control module (during assembly line commissioning). The voltage value is proportional to the operating pressure (in bar shown below right).






Selector Position Recognition Sensor (SSE): The SSE is mounted on the valve block assembly (3 above left). This sensor allows the ARS control module to detect the specific position of the directional valve (4 above left). The 2 positions detected are:

- Left hand control (direction of torsional twist)
- Right hand control (direction of torsional twist)

Fluid Level Sensor: The fluid level sensor allows the ARS control module to detect the fluid supply level in the reservoir (power steering reservoir) for the tandem pump. The fluid level sensor indicates when the fluid drops below the minimum level and triggers a warning message.




Normal fluid movement (slosh) will not trigger the sensor. Short/open circuits are not detected by the fluid level sensor circuit and a circuit break is interpreted as a loss of fluid.