The multitronic ® is a continuously variable transmission. It combines the dynamics and economics of the gearbox with the convenience of automatic transmission. Thanks to the continuous translation and by the adaptive map control uses the multitronic ® is always the optimal speed range.
The multitronic ® on the one hand allows a more comfortable speed in comparison to conventional automatic transmissions, the other is usually lower due to the close control of the firm's optimum fuel economy than the manual transmission.
A power-transmitting steel-link chain (pull chain) runs in an oil bath between two conical disk pairs variable, the variator. From more than 1,000 pairs of pin and 75 tongues link chain designed a torque transfer up to 330 Newton meters. By pushing together or pulling apart the two Kegelradflächen the link chain continues to run inside or outside of the conical disk pairs in any driving situation and provides continuous optimal for translation.
The adjustment of the conical surfaces is done hydraulically, and using different Steuerungskennlinien. A hydraulic torque sensor ensures here that the link chain is always properly tensioned and transmits the torque without slip.
The hydraulic multi-plate clutch enables through its electronic control system increased driving comfort and agility. It also contributes to a low fuel consumption. Occurs because the driver, for example when waiting at traffic lights, the brake is reduced by decoupling the electronic engine and gearbox, the Kriechmoment.
In the electronic-hydraulic control unit in housing all the variables of driver, engine and vehicle run together. To recognize the dynamic rule DRP program, for example, to the accelerator pedal position and movement, will be whether sporty or a consumption-driven. A manual intervention as in the tiptronic transmission is possible, whereby it is possible depending on the version up to eight simulated speed levels are available.
