| 摘要 |
PROBLEM TO BE SOLVED: To provide safe feeling to an occupant by reliably starting and performing a side support control for a seat when a vehicle stability is lowered during the traveling of a vehicle on a lowμroad surface (road surface with low coefficient of friction) on which a small lateral acceleration is applied to the vehicle. SOLUTION: Based on the deviation between a target turning state amount Jrt and an actual turning state amount Jra (vehicle body slipping angular velocity or the like), a steer characteristic value Sch (value presenting the degree of over-steered state) is calculated. The steer characteristic value Sch can express the degree of lowering of the vehicle stability (accordingly, the degree of uneasiness felt by the occupant) more accurately than the actual turning state amount Jra (actual lateral acceleration). When the steer characteristic value Sch reaches a predetermined value Sc1 while increasing, the side support control for moving the support members provided to the left and right sides of the seat in the direction approaching the occupant is started. Then, when the steer characteristic value Sch reaches a predetermined value Sc2 which is larger than the predetermined value Sc1, the seat controller controls the braking force acting on wheels to start a vehicle stabilization control for stabilizing the turning state of the vehicle. COPYRIGHT: (C)2010,JPO&INPIT |
