| 摘要 |
PROBLEM TO BE SOLVED: To provide a steering control system for a vehicle capable of effectively reducing the influence of variation between products in output characteristics of a current sensor and suitably protecting a motor for driving a wheel steering shaft. SOLUTION: The offset output characteristic of a current sensor 70 for detecting the electric current applied to the steering shaft drive motor 6 is actually measured prior to the actual use (i.e., before shipment) as a steering control system 1 for a vehicle, and offset compensation information is prepared based on the measured value for storage in an EEPROM 115. Further, an output value of the current sensor and an output value of a reference current measuring system are measured independently of each other with the supply voltage for use in measurement being set to a constant value. Then, current gain compensation information is prepared based on the two output values so measured and is stored in the EEPROM 115. In the later actual use (i.e., after shipment) of the control system, the output of the current sensor is compensated based on the offset compensation information and the current gain compensation information. COPYRIGHT: (C)2004,JPO |
