And the confidence that your Volkswagen can safely tackle the roughest roads and the worst weather conditions. That lets you relax and enjoy your drive, knowing that 4MOTION is always on the alert to keep you safe and help you out of tricky situations.
It will take snow and ice, slippery roads and muddy tracks in its stride, and help you get out of places where a normal car would be stuck. All this happens in milliseconds, through control units that are linked to the car's dynamic sensors, engine management system and gearbox.
At the heart of the four-wheel drive system is an inter-axle differential -the design varies depending on the particular system. The differential's job is to share power between the front and rear axle, sending it where it's most needed. If the system senses a loss of traction - caused, for instance, by the wheels on one axle spinning on a slippery surface - it will split the wheels' turning power as needed - almost instantly - to correct the problem.
At the same time, the smaller differences in rotational speed, that happen when cornering or manoeuvring, have to be balanced to stop torsional stresses in the drive train. In order to meet all these different demands, we offer our four-wheel drive system in three differential variants. They are called:. The Haldex clutch automatically gathers information on the driver's actions, engine performance, transmission and brakes, so it can control the transfer of torque.
That lets it deal swiftly with all potentially dangerous or difficult driving conditions. Whether you need maximum torque shift in tricky situations or when accelerating - or less when taking sharp corners or parking - the system keeps you safe while offering better performance and driving comfort. It distributes power between front and rear axles by means of an electronically controlled multi-plate clutch, set between the front and rear axles. Sensors detect slip between the front and rear wheels and apply torque to the back pair if the powered front wheels are spinning, until the two axles are moving at the same speed.
Electronic pumps regulate the pressure on the clutch plates and as it rises, the plate sets are pressed against each other. Power transmission can be precisely regulated. The general principle of the Haldex clutch is to always send the driving forces to the axle with the better traction. However, you still keep the feel of a front-wheel drive car most of the time. This advertisement has not loaded yet, but your article continues below.
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