Thu. Oct 28th, 2021

Hyundai Mobis Develops iMEB Brakes For PHEV And EVs

Hyundai Mobis announced that the company became the first in Korea and the second in the world to successfully develop the next-generation electronic integrated regenerative brake system known as iMEB (Integrated Mobis Electronic Brake) for environment-friendly cars such as hybrid, EV, and PHEV.


iMEB, developed by Hyundai Mobis, is an advanced brake system that integrated the pressure supply unit and the pressure control unit of the regenerative brake system into a single electronically driven type. This allows more than 30% cost and weight reduction. Moreover, cutting-edge brake functionality, such as ESC (Electronic Stability Control), ABS (Anti-Lock Brake System), SCC (Smart Cruise Control) and AEB (Autonomous Emergency Braking) functions are also integrated.

The ‘regenerative brake system’ uses kinetic energy created while car is decelerating, to charge the batteries for environmentally-friendly cars. As it can reduce the energy dissipation rate by close to 70% compared to existing brake systems, it is considered to be a core part for environmentally-friendly cars. In particular, it is an essential device for implementing environmentally-friendly cars in view of the fact that the regenerative system accounts for about 40% of the fuel efficiency improvement in hybrid cars over existing gasoline cars.

In the existing ‘regenerative brake system,’ the ‘pressure supply unit,’ which amplifies the power with which the driver steps on the brake, and the ‘pressure control unit,’ which calculates how much braking force will be applied to each wheel and controls it, are separated. So it is less competitive in terms of cost and weight.

For this reason, all global automotive parts makers have recently become focused on developing electronic regenerative brake systems that integrate the pressure supply unit and the pressure controller. Functions implemented by several systems must be integrated into a single system, however, it is very difficult technologically. Accordingly, most companies are facing difficulties with developing this system.