so R-Line cars are going to be made with the new 4-Motion....
As standard equipment, the Volkswagen Golf R transfers the TSI's power to the road via the latest generation of Volkswagen's 4Motion all-wheel drive system. Compared to the version implemented in the Golf R32, the system underwent significant advanced development. Above all, power transmission between the front and rear axles - especially the all-wheel differential that operates in an oil bath - exhibits clear advances compared to the previous generation. The most important one: Activation of the all-wheel differential no longer requires a difference in speeds between the front and rear axles.
That is because, different than on the previous generation, for the first time an electric pump is used to build pressure. The electric pump supplies oil to a hydraulic reservoir whose working pressure is 30 bar. A control module computes the ideal drive torque for the rear axle and controls, via a valve, how much oil pressure is applied to the working pistons of the multi-plate clutch. The contact pressure at the clutch plates rises in proportion to the desired torque at the rear axle. The amount of torque that is transferred can be varied continuously with the magnitude of the pressure applied to the clutch plates. Compared to the previous 4Motion generation, the system operates independent of slip, since the system's working pressure is always available. When starting up and accelerating, this prevents spinning of the wheels at the front axle more effectively, since the control module regulates the torque distribution based on dynamic axle loads. In extreme cases, nearly 100 percent of the drive torque can be directed to the rear axle. This results in further gains in active safety and dynamic performance.
sounds clever
