ACTi E46 Manual do Utilizador descarregar pdf (Página 17)

E46 Traction and Stability control systems

LATERAL ACCELERATION SENSOR

The lateral acceleration sensor is mounted in the left "A" pillar. The sensor provides the DSC

control module with an input signal that corresponds to the degree of lateral acceleration

("G" forces) acting on the vehicle.

The sensor is a capacitive type with two capacitive plates (one fixed and one moving).

Under the effect of lateral acceleration, the one plate moves in relation to the fixed plate.

This results in a voltage signal being produced in proportion to the degree of lateral accel-

eration.

The voltage signal output of the sensor to the DSC control module ranges from 0.5 to 4.5

volts. When the vehicle is stationary, The standing voltage from the sensor is approximate-

ly 1.8 volts.

This signal is used in conjunction with the yaw sensor input to determine the degree of DSC

regulation required to maintain the vehicle's stability.

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ACTi E46 Manual do Utilizador Página 17