What does 4motion mean?
1 Answers
4motion is a trademark for Volkswagen's four-wheel drive technology, and the 4motion system is a full-time four-wheel drive system commonly used in Volkswagen vehicles. It can freely distribute power between the front and rear wheels based on different terrain conditions and can even apply all driving force to a single wheel when necessary. Here are some additional details: 1. Haldex Center Differential: This is the technical core of 4motion. The Haldex center differential has evolved into a multi-plate clutch differential control system, which intelligently distributes torque through the combined action of mechanical devices and electronically controlled hydraulic systems. The multi-plate clutch is positioned differently depending on the vehicle model—some are near the rear axle differential, while others are integrated with the transmission, similar to Audi's approach. 2. Principle and Structure: Its principle is similar to the clutch in a manual transmission car, except that the clamping force between the friction components is changed from spring force to hydraulic pressure. The basic structure consists of: the input shaft end being radially fixed to the clutch plates via splines; the output shaft is cast as one with the housing, and multiple clutch plates are also installed inside the housing.
