Kia Cee'd: ESP(Electronic Stability Program) System / Yaw-rate and Lateral G Sensor Description and operation

Kia Cee'd JD Service Manual / Brake System / ESP(Electronic Stability Program) System / Yaw-rate and Lateral G Sensor Description and operation

Description
When the vehicle is turning with respect to a vertical axis the yaw rate sensor detects the yaw rate electronically by the vibration change of plate fork inside the yaw rate sensor.
If yaw velocity reaches the specific velocity after it detects the vehicle'yawing, the ESP control is reactivated.
The later G sensor senses vehicle's lateral G. A small element inside the sensor is attached to a deflectable leverarm by later G.
Direction and magnitude of lateral G loaded to vehicle can be known with electrostatic capacity changing according to lateral G.

Specifications
 
Description
Specification
Remarks
Operating voltage
10 ~ 16V

Output signal
CAN Interface

Operating temperature
-40 ~ 85°C (-40 ~ 185°F)

Yaw-rate sensor
Measurement range
-75 ~ 75°/sec

Frequency response
15 ~ 45Hz

Lateral G sensor
Measurement range
-14.715 ~ +14.715g

Frequency response
50Hz ± 60%


External Diagram

ESP Control Module Repair procedures
Removal [LHD] 1. Turn the ignition switch OFF. 2. Pull up the lock of the HECU connector (A) , then disconnect the connector. ...

Yaw-rate and Lateral G Sensor Repair procedures
Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Pull the passenger seat towards the front till ...

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