| 摘要 |
PURPOSE:To improve operability by a method wherein, in a title device for a 4-wheel steering vehicle, rear steering characteristics are corrected in linkage with variation of a ground clearance by means of a ground clearance regulating means. CONSTITUTION:A controller 17 for controlling suspension characteristics receives signals from a delivery pressure gauge 12 of a hydraulic pump 8, a liquid pressure sensor 13 of a fluid cylinder 3, a ground clearance sensor 14, and a vertical acceleration sensor 15 to perform control of variation of suspension characteristics to control a ground clearance. Meanwhile, a controller 110 receives signals from sensors 115 - 126 containing a steering angle sensor 115, a front wheel steering angle sensor 116, and a rear wheel angle sensor 124, and decides a steering ratio based on rear wheel steering ratio characteristics. In this case, the controller 110 switches and selects steering ratio characteristics according to the selection position of a manual switch 61 in linkage with variation of a ground clearance to correct rear wheel steering ratio characteristics. This constitution enables improvement of operability. |
