Predicted Course Line Operation Principle
Detection of Steering Rotation Direction
Camera control unit detects the rotation direction of steering according to the phase difference of two pairs of pulse signals (sensor signal 1 and sensor signal 2) input from steering angle sensor.
Detection of Steering Neutral Position
The sensor signal 3 input from steering angle sensor is generated at 1 pulse per 1 rotation of the steering wheel. Camera control unit detects the steering neutral position from this pulse.
Correction of Steering Neutral Position
Camera control unit corrects the steering neutral position during driving according to the vehicle speed signal and sensor signal.