| 摘要 |
<p>In a steering control system comprising a steering component having a steering wheel (6) and a steering reaction force actuator (5), a turning component having vehicle turning wheels (16,16) and a turning actuator (14), and a backup mechanism (7) for alternately mechanically separating and linking the steering and turning components, there is provided a steer-by-wire control unit (18,19,20) selectively separated from the backup mechanism (7) for executing steer-by-wire control of the turning actuator (14) to a turning angle corresponding to the steering condition and control of the steering reaction force actuator (5) for imparting steering reaction force corresponding to the turning condition, a steering assistance control unit (18,19,20) selectively linked to the backup mechanism (7) for executing steering assistance control for at least one of the steering reaction force actuator (5) and the turning actuator (14), and a control switching unit (9) for controlling a shift, upon attainment of predetermined conditions, between control by the steer-by-wire control unit (18,19,20) and control by the steering assistance control unit (18,19,20). The control switching unit (9), upon the shift of control, between the time of a separation/linkage command to the backup mechanism (7) and the time of completion of separation/linkage, selectively sets as the correction amount the variation equivalence of the turning torque to be applied to the turning wheels (16,16) of a vehicle after the completion and selectively executes correction of turning torque.</p> |
