| 摘要 |
PROBLEM TO BE SOLVED: To continue to drive a motor for applying auxiliary steering force even after switching off an ignition switch during the travel of a vehicle. SOLUTION: A protecting means 24 in a control means 12 has a false vehicle speed setting means 31. The false vehicle speed setting means 31 generates a false vehicle speed signal RVs gradually decreasing, with time, the value of an actual vehicle speed signal V when an ignition signal IG from an ignition operation sensor IGS becomes an ignition off signal, The false vehicle speed signal RVs is outputted to a target current setting means 21. The drive of the motor 8 is stopped after the false vehicle speed signal RVs becomes 0. |
