Method and apparatus for controlling angle overlay of vehicle according to input steering angle sensor

1. A vehicle control apparatus for controlling an angle overlay operation of a vehicle, the vehicle control apparatus comprising:

a reception unit configured to receive a target steering angle from a target steering angle transmission apparatus;

a resetting unit configured to reset an input steering angle sensor when an abnormality has occurred in the input steering angle sensor, wherein one of a plurality of sensors is set as the input steering angle sensor for deriving a current steering angle and the resetting unit changes the input steering angle sensor from a current input steering angle sensor having the abnormality to another sensor normally operated among the plurality of the sensors to reset the input steering angle sensor; and

a control unit configured to control the angle overlay operation based on the target steering angle and the current steering angle derived from the input steering angle sensor.

2. The vehicle control apparatus of claim 1 , wherein the input steering angle sensor is set to be a relative steering angle sensor of a torque sensor when the angle overlay operation is started.

3. The vehicle control apparatus of claim 1 , wherein the resetting unit resets the input steering angle sensor to be a motor position sensor when an abnormality has occurred in a relative steering angle sensor of a torque sensor and the motor position sensor operates normally.

4. The vehicle control apparatus of claim 1 , wherein the resetting unit resets the input steering angle sensor to be an external angle sensor when an abnormality has occurred in a relative steering angle sensor of a torque sensor and a motor position sensor and the external angle sensor operates normally.

5. The vehicle control apparatus of claim 1 , wherein the input steering angle sensor is set to be a motor position sensor when the angle overlay operation is started.

6. The vehicle control apparatus of claim 1 , wherein the resetting unit resets the input steering angle sensor to be an external angle sensor when an abnormality has occurred in a motor position sensor and the external angle sensor operates normally.

7. The vehicle control apparatus of claim 1 , wherein the resetting unit resets the input steering angle sensor to be a relative steering angle sensor of a torque sensor when an abnormality has occurred in a motor position sensor and an external angle sensor and the relative steering angle sensor of the torque sensor operates normally.

8. The vehicle control apparatus of claim 1 , wherein the resetting unit is configured to initially set a relative steering angle sensor as the input steering angle sensor, reset the input steering angle sensor by changing the input steering angle sensor from the relative steering angle sensor to a motor position sensor when the relative steering angle sensor has an abnormality, and reset the input steering angle sensor by changing the input steering angle sensor from the motor position sensor to an external angle sensor configured to calculate an absolute steering angle when the motor position sensor has an abnormality.

9. The vehicle control apparatus of claim 1 , wherein the resetting unit is configured to initially set a motor position sensor as the input steering angle sensor, reset the input steering angle sensor by changing the input steering angle sensor from the motor position sensor to an external angle sensor configured to calculate an absolute steering angle when the motor position sensor has an abnormality, and reset the input steering angle sensor by changing the input steering angle sensor from the external angle sensor to a relative steering angle sensor when the external angle sensor has an abnormality.

10. The vehicle control apparatus of claim 1 , wherein a time required for the resetting unit to determine whether the abnormality has occurred in the input steering angle sensor is set to be less than a time required for an electric power steering to determine whether the abnormality has occurred in the input steering angle sensor.

11. A vehicle control method for controlling an angle overlay operation of a vehicle, the vehicle control method comprising:

starting the angle overlay operation;

resetting an input steering angle sensor when an abnormality has occurred in the input steering angle sensor, wherein one of a plurality of sensors is set as the input steering angle sensor for deriving a current steering angle and the resetting of the input steering angle sensor comprises changing the input steering angle sensor from a current input steering angle sensor having the abnormality to another sensor normally operated among the plurality of the sensors to reset the input steering angle sensor; and

controlling the angle overlay operation based on a target steering angle received from a target steering angle transmission apparatus and the current steering angle received from the input steering angle sensor.

12. The vehicle control method of claim 11 , wherein the starting of the angle overlay operation comprises resetting the input steering angle sensor to be a relative steering angle sensor of a torque sensor.

13. The vehicle control method of claim 11 , wherein the resetting of the input steering angle sensor comprises resetting the input steering angle sensor to be a motor position sensor when an abnormality has occurred in the relative steering angle sensor of the torque sensor and the motor position sensor operates normally.

14. The vehicle control method of claim 11 , wherein the resetting of the input steering angle sensor comprises resetting the input steering angle sensor to be an external angle sensor when an abnormality has occurred in a relative steering angle sensor of a torque sensor and a motor position sensor and the external angle sensor operates normally.

15. The vehicle control method of claim 11 , wherein the starting of the angle overlay operation comprises resetting the input steering angle sensor to be a motor position sensor.

16. The vehicle control method of claim 11 , wherein the resetting of the input steering angle sensor comprises resetting the input steering angle sensor to be an external angle sensor when an abnormality has occurred in a motor position sensor and the external angle sensor operates normally.

17. The vehicle control method apparatus of claim 11 , wherein the resetting of the input steering angle sensor comprises resetting the input steering angle sensor to be a relative steering angle sensor of a torque sensor when an abnormality has occurred in a motor position sensor and an external angle sensor and the relative steering angle sensor of the torque sensor operates normally.

18. The vehicle control method of claim 11 , further comprising initially setting a relative steering angle sensor as the input steering angle sensor, wherein the resetting of the input steering angle sensor comprises:

resetting the input steering angle sensor by changing the input steering angle sensor from the relative steering angle sensor to a motor position sensor when the relative steering angle sensor has an abnormality; and

resetting the input steering angle sensor by changing the input steering angle sensor from the motor position sensor to an external angle sensor configured to calculate an absolute steering angle when the motor position sensor has an abnormality.

19. The vehicle control method of claim 11 , further comprising initially setting a motor position sensor as the input steering angle sensor, wherein the resetting of the input steering angle sensor comprises:

resetting the input steering angle sensor by changing the input steering angle sensor from the motor position sensor to an external angle sensor configured to calculate an absolute steering angle when the motor position sensor has an abnormality; and

resetting the input steering angle sensor by changing the input steering angle sensor from the external angle sensor to a relative steering angle sensor when the external angle sensor has an abnormality.

20. The vehicle control method of claim 11 , wherein a time required for the resetting of the input steering angle sensor to determine whether the abnormality has occurred in the input steering angle sensor is set to be less than a time required for an electric power steering to determine whether the abnormality has occurred in the input steering angle sensor.