“emKERS” stands for "electro-mechanical Kinetic Energy Recovery System’, with which the speed of a compact steel flywheel is regulated by a 10 to 20 kW 48V machine and a power splitting planetary gearset. Collectively the system can deliver peak mechanical output power of at least 60kW. As a P4 hybrid powertrain axle it combines the best of electric and mechanic hybrids.
Fuel efficiency and driving pleasure with 48V
The emKERS unit can be mounted on the rear axle of a front wheel-driven car, also known as P4 hybrid. This addition provides the car with extra peak capacity, which increases the driving pleasure and is useful during bypassing slower vehicles. emKERS facilitates a certain level of All Wheel Drive capabilities, while it also enables fuel savings of at least 15%, without altering the front ICE powertrain. The emKERS system also enables engine downsizing with slower turbos, increasing the fuel improvement potentials to 20% and higher.
An even further application entails an AWD emKERS EV, where a front and rear unit together realize full EV driving at 48V.