electronic differential lock EDS (Electronic Differential System), is an extension of the ABS, automatically detects the rotational speed of left and right wheels by the sensor ABS system, when the rotation speed of each wheel due to the wheel slip is not generated at the same time , the EDS system will be braked by a wheel side slip ABS system, thereby effectively acting to the non-slipping wheel side, to ensure a smooth start car driving force.
1. The electronic differential lock EDS noun
electronic differential lock EDS (Electronic Differential System), is an extension of the ABS, by the sensor automatically detects ABS system rotational speed of the left and right wheels, when wheel slip is generated due to the rotational speed of the wheel is not the same on both sides, the EDS system will be braked by a wheel side slip ABS system, thereby effectively acting to the non-slipping wheel side driving force to ensure a smooth start car.
during vehicle acceleration, whenThe electronic control unit determines the wheel speed signal when one side of wheel slip, the EDS automatically start working, the brake wheel suitable intensity via the hydraulic control unit, thereby improving the adhesion utilization on the other side of the drive wheels, to improve capability of the vehicle. When the vehicle driving conditions return to normal, electronic differential lock stop working. Compared with ordinary vehicles, vehicles with EDS can make better use of traction to improve the operation of the vehicle.
2. The operating principle of the electronic differential lock EDS and Function
EDS works easier to understand. Because differential rotation allows the wheels on both sides of the drive shaft at different speeds, if one side of the drive shaft of the wheel slip or floating, will cause the other side of the wheel completely out of power, when the electronic differential lock EDS system by ABS a sensor automatically detects each wheel due to the wheel slip or the rotational speed of the floating generating different phenomena, will be braked by a wheel side slip ABS system, thereby acting effectively to the non-slipping side driving force wheels, automobile ensure a smooth start.
When the normal running condition of the vehicle, electronic differential lock stop action. The drive shaft when the vehicle wheels are started at two different road surface friction coefficient, for example, a drive wheel in a dry asphalt road surface, the other driving wheel on the ice, the EDS electronic differential lock ABS system, the sensor will pass automatically detects the rotational speed of left and right wheels.
When the rotational speed since the wheel slip is not generated at the same time on both sides of the wheel, EDS system by the ABS system willSkidding wheel brake side, thereby acting effectively to the non-slipping wheel side, to ensure a smooth start car driving force. However, EDS electronic differential lock which would normally be the speed limit, only the vehicle speed is below 40 km / h to start, for example, when the speed falls below 40 km on a slippery surface, EDS can also lock the slipping wheel, improve traffic safety.
Compared with ordinary vehicles, vehicles with EDS can make better use of ground adhesion, thereby improving the operation of the vehicle, particularly on an inclined road surface, the more pronounced effect of EDS. But it has speed limit, it is activated at speeds of less than 40km / h, mainly to prevent slipping during start-up and low speeds.
3. VW Golf expansion electronic differential lock XDS
XDS is not applied to any one of the drive wheels slip, but by means of an electronic stability program (ESP) of the hydraulic unit, only in the car sharp turn to the front wheels medial grip urging small to prevent wheel slip. XDS differential lock urged size of 5-15 bar, driving feel than the ordinary differential lock feel lighter. Since the precise XDS boost the braking force in one direction, so that the car turns more dynamic, rapid and stable.
