Turn Rate, Lateral And Longitudinal Acceleration Sensor, Component Description - GF42.45-P-4082GN

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MODEL 166 as of model year 2016

MODEL 292

Shown on model 292

Fig 1: Turn Rate, Lateral And Longitudinal Acceleration Sensor Component Location - Shown On Model 292, Model 166 As Of Model Year 2016 Similar

Courtesy of MERCEDES-BENZ USA

Location

The yaw rate sensor for lateral and longitudinal acceleration is located in the vehicle footwell at the front right.

Tasks

The yaw rate sensor for lateral and longitudinal acceleration measures the turn rate around the vertical axis. The integrated lateral acceleration sensor (AY sensor) measures the lateral acceleration. The integrated longitudinal acceleration sensor (Ax sensor) detects longitudinal inclination.

The signals are read in by the Electronic Stability Program control unit (N30/4) via dynamics CAN (CAN H).

Yaw rate sensor

Acceleration sensor

Function

The turn rate sensor and acceleration sensor are integrated in the turn rate sensor for lateral and longitudinal acceleration. The movement of the vehicle causes the vibrating masses to vibrate horizontally in opposite directions. If a rotary motion is superimposed onto this linear movement as a result of the rotary movement of the vehicle (e.g. skidding), a force (Coriolis force) acts on the vibrating mass.

The electronic analysis system calculates the corresponding vehicle behavior from the changes in the vibration states. Die electronic analysis system controls the inert bodies such that they are kept in their initial position. The voltage values required in operation for maintaining this design position are a measure for the respective acceleration occurring.