Toyota
Ford Kuga
 Service Manual
Rear Drive Axle/Differential » Rear Drive Axle and Differential (System Operation and Component Description)
General Information

The powertrain with all-wheel drive consists of the following main components:

  • engine
  • transaxle with front axle differential
  • transfer box
  • halfshafts and driveshafts
  • Haldex clutch
  • rear axle differential

The Haldex clutch guarantees continuous variable torque transmission to the rear axle under all driving conditions. The Haldex clutch reacts immediately and equally quickly with slow or fast wheel slip.

A difference in angle of rotation of 90 between the input and output shafts is required to build up maximum pressure at the multi-plate clutch or to transmit maximum torque.

The advantage of vehicles with all-wheel drive is that they distribute the drive between all four wheels. They therefore have a higher tractive power. They feature improved cornering behaviour, as the grip at all four wheels can be better utilised.

Thus, the wheels contribute to a greater degree towards cornering stability.

The engine torque is transmitted from the transfer box to the rear axle via a driveshaft. The driveshaft is flange-mounted to the input side of the Haldex clutch.

    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) / General Information

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