| 摘要 |
PURPOSE:To enhance the stability of a vehicle in a rectilinear advance, by controlling the differential resistant force of a differential limit device with the use of hydraulic pressure from a power steering unit so that a large differential resistant force is applied upon rectiliear running to limit the differential operation of a differential gear unit. CONSTITUTION:A hydraulic converter 27 is connected to the hydraulic port 25 of a hydraulic actuator 26. This converter 27 receives the hydraulic pressure from a power steering device 28, and converts the hydraulic pressure into a corresponding signal which is then transmitted. Further, an oil pump 35 is connected to a reservoir tank 36 and is also connected at its output side with the input port of a control valve 40 in the device 48 through a pressure control valve 37, a flow control valve 38 and as well a pipe line 39. Further, upon rectilinear advance the valve 40 comes to be at its neutral position, and therefore, no hydraulic pressure is effected to a power cylinder 30 so that the differential resistant force of a differential limit device becomes large so that the rectiliear running characteristic of the vehicle may be enhanced. |
