eDIH is a kind of what is commonly known as EPB (electronic parking brakes). EPB is usually divided into the caliper-based MOC (Motor on Caliper) and the drum-type eDIH depending on how the device works. Caliper-based MOC is installed in passenger cars and RVs in most cases. Hyundai Mobis began to mass-produce the MOC back in 2011; these are now being applied to various models including the Kia K7 and Hyundai LF Sonata.

Unlike the MOC, the DIH is a ‘drum-type’ parking brake. The mechanical parking brake using cables was changed into one with an electronically controlled motor, which is eDIH. It is applied mostly to large vehicles such as trucks and buses that are heavy and have a greater loading capacity, and thus require greater braking force. As the passenger car and RV market is much larger, eDIH is both a niche and a “blue ocean” market as it has never been applied to large pickups before.

The eDIH, developed by Hyundai Mobis, is particularly suited for large pickup trucks. eDIH can also be applied to passenger cars, commercial vehicles and general pickup trucks. Until now, some global companies developed eDIH, but none of them optimized it to the specifications of large pickup trucks. Hyundai Mobis increased the parking braking force by 1.5 times compared to existing mechanical parking brakes (side/foot brakes), and as it integrated some parts into an all-in-one unit, it reduced the size by about 30% and saved costs.

Hyundai Mobis expects to capitalize on its technological advantage in eDIH to further lower the entry barrier of global automakers.

The pickup truck market is primarily formed around North America. IHS estimates the size of the North American pickup truck market to be about 3.8 million units this year—more than 20% of these are large pickup trucks to which eDIH can be applied. All large pickups are still using the mechanical DIH and none of them are using eDIH.

Hyundai Mobis forecasts that the eDIH market will open in earnest before long. Accordingly, it is planning to win orders for the new eDIH for large pickup trucks as well as existing caliper-based MOC types, and aggressively penetrate the North American market.