Kia Optima: 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 ESC 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.
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Description |
Specification |
Remarks |
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Operating voltage |
10 ~ 16V |
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Output signal |
CAN Interface |
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Operating temperature |
-40 ~ 85°C (-40 ~ 185°F) |
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Yaw-rate sensor |
Measurement range |
-75 ~ 75°/sec |
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Frequency response |
15 ~ 45Hz |
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Lateral G sensor |
Measurement range |
-14.715 ~ +14.715g |
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Frequency response |
50Hz ± 60% |
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External Diagram
Inspection
1.
Measure the output voltage between
the terminal of the wheel speed sensor and the body ground.
...
Yaw-rate and Lateral G Sensor. Repair procedures
Removal
1.
Turn ignition switch OFF and
disconnect the negative (-) battery cable.
2.
Remove the floor console. (Refer
to the Body group - Console)
3.
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See also:
Component Location (1)
1. Buzzer
2. RF receiver
3. Smart key unit
4. Interior antenna 1
5. Interior antenna 2
6. Trunk antenna
7. Bumper antenna
...
Components
1. Driver Airbag (DAB)
2. Steering Wheel
3. Clock Spring
4. Seat Belt Pretensioner (BPT)
5. Pressure Side Impact Sensor (P-SIS)
6. Side Impact Sensor (SIS)
7. Side A ...
Inspection
1.
Check the hub for cracks and
the splines for wear.
2.
Check the brake disc for scoring
and damage.
3.
Check the knuckle for cracks
4. ...