Sedona V6-3.8L (2009)
Steering Angle Sensor: Description and Operation
DESCRIPTION
GENERAL DATA
The steering angle speed sensor detects the angle of the steering wheel in order to which direction a user chooses.
MEASURING PRINCIPLE
A non contact, analog angle sensor carrying out absolute measuring by the use of the Anisotropic-Magneto-Resistive effect (AMR).Measuring of the
absolute angle by means of a toothed measuring gear with magnetic properties in combination with different ratios. Corresponding AMR elements that
change their electrical resistance according to the magnetic field direction detect the angle position of the measuring gears.A micro-controller decodes
the measured voltage signals after A/D converting with the help of a mathematical function. Output of the digital angle value and velocity via
CAN-interface.
STEERING ANGLE SENSOR (SAS) calibration
1. PURPOSE OF calibration
A. On vehicle control, an ESC analyzes the intention of the driver.
B. An ESC recognizes a steering angle which a driver rotates through the steering angle sensor.
C. A steering angle sensor used in ESC adjusts 0° setting of steering wheel through K-line or CAN communication.
2. STEERING ANGLE SENSOR (SAS) CALIBRATION METHOD
(1) Align the wheel to the straight line. (steering wheel < ± 5° )
ex) Perform the wheel alignment first.
Align the wheel to the straight line.
A driver moves the vehicle to the front and back about 5 meters twice or three times.
(2) Connect Scan tool to the vehicle.
(3) Select Brake system.
(4) Select Steering angle sensor(SAS) calibration.
(5) Perform the Steering angle sensor(SAS) calibration.
(6) Perform the procedure continuously.
