Toyota
Ford Kuga
 Service Manual
Rear Drive Axle/Differential » Rear Drive Axle and Differential (System Operation and Component Description)
Increased base pressure (preload)

Increased base pressure (preload)

Item Description
A Barometric Pressure
B Base pressure
C Increased base pressure (preload)
Drive Operating pressure

To ensure very fast torque transmission, a higher voltage is applied to the electric feed pump and the control valve fully closed before the shaft-driven pump is brought into operation. As a result, the maximum pressure is raised above the base pressure, and a torque of up to 80 Nm applied to the multi-plate clutch. This achieves significantly faster pressure build-up than with older systems (second generation). To protect the pump from overloading, the pressure is restricted to approx.

10 bar by the pressure relief valve. The hydraulic fluid flows back into the sump via the pressure accumulator.

    More about «Rear Drive Axle and Differential (System Operation and Component Description)»:

    General Information

    Driving situations

    Haldex clutch

    Design of the 3rd generation Haldex clutch

    Design of the multi-plate clutch

    All-wheel drive control unit

    Electric feed pump

    Pressure control - 3rd generation Haldex clutch

    Base pressure

    Increased base pressure (preload)

    Pressure build-up

    Design of the 4th generation Haldex clutch

    Pressure control - 4th generation Haldex clutch

    Ford Kuga Service Manual / Rear Drive Axle/Differential / Rear Drive Axle and Differential (System Operation and Component Description) / Increased base pressure (preload)

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