| 摘要 |
PROBLEM TO BE SOLVED: To provide a front and rear wheel steering angle control device for controlling front and rear steering angles with easy computation of a target turning center position to limit a protrusion from the outside at the rear end of a vehicle while achieving a predetermined turning radius during turning the vehicle. SOLUTION: In the device, a target turning radius is calculated in accordance with an steering control input by a driver so that the target turning center position is located on an extension line from the rear end of the vehicle at the beginning of turning the vehicle to limit the protrusion from the outside at the rear end of the vehicle during turning the vehicle and then the target turning center position is gradually moved in the frontward direction of the vehicle in the process of the turning, and command values for the front and rear wheel steering angles are calculated in accordance therewith. Thus, the protrusion from the outside at the rear end of the vehicle is limited at the beginning of turning and a side slip angle and an inner wheel difference of the vehicle during turning are reduced without giving a sense of incongruity to the driver. COPYRIGHT: (C)2005,JPO&NCIPI |
