In the automobile environmental regulations of each country, significant fuel consumption reduction and cleaner exhaust gas are required under conditions closer to real driving. To satisfy environmental regulations, which are becoming increasingly strict every year, powertrain electrification has been advancing lately. Various types of electric motor vehicles including hybrid vehicles, plug-in hybrid vehicles, 48V mild hybrid vehicles (MHEV) with engines, electric vehicles (EV), and fuel cell vehicles (FCV) without engines are currently on the market. Mitsubishi Heavy Industries Engine & Turbocharger Co., Ltd. (MHIET) has contributed to fuel consumption reduction and cleaner exhaust gas through turbochargers. Utilizing these results, we have developed electric supercharging technology applicable to future powertrains and proposed it to automobile manufacturers. In this paper, MHIET presents this electric supercharging-related technology.
