EDL - Electronic Differential Lock

The Electronic Differential Lock System, or EDS (German abbreviation for the same), is not a conventional differential lock. It uses ABS sensors on the driven wheels (e.g. left / right for front-wheel drive; left / right front and left / right rear for all-wheel drive) to determine if one of the wheels is spinning faster than the others. At a certain speed delta (about 40 km / h), the ABS and EBV systems instantly brake the spinning wheel at maximum speed, effectively transferring torque through the open differential to the wheel with high tractive effort.

This system is effective, but because of the load it can put on the braking system, it is only used up to speeds of approximately 25 mph / 40 km / h.

The system is simple but effective, does not cause significant losses in power transfer, and after 25 mph / 40 km / h you get the benefits of ASR on front-wheel drive models and safety on XNUMX-wheel drive models.