| 摘要 |
PURPOSE:To prevent the generation of an excessive drift-out by composing the system to carry out an auxiliary steering angle control to prevent a drift by the difference between a driving slip amount detected from the difference of the front and the rear wheel rotation speeds, and an offset value set in a value larger as in a higher car speed. CONSTITUTION:In a vehicle furnished with a front-wheel steering mechanism (a) linking to the steering operation, and an auxiliary steering mechanism (b) to give an auxiliary steering angle control amount to at least either of the front wheel and the rear wheel responding to a driving instruction from the external side, a front-wheel steering amount detecting device (c) is provided, and a basic auxiliary steering angle control amount is determined by a deciding device (d) responding to the front wheel steering amount. Furthermore, a front and rear wheel rotation speed difference detecting device (e) and a car speed detecting device (f) are provided, and a correcting auxiliary angle control amount to correct to the oversteering side as the difference between the front and the rear wheel rotation speed detecting value and a car speed respondent offset set value is increased is determined by a deciding device (h). And from the sum of the basic auxiliary steering angle control amount and the correction auxiliary steering angle control amount, the auxiliary steering angle control amount is determined by a deciding device (i), and the auxiliary steering mechanism (b) is controlled thereby. |
