Power Train System installed on a Concept Car for Improving the Fuel Economy

摘要

The aim of this system named energy management system (EMS) is remarkable improvement in fuel consumption of a power train that consists of mainly a reciprocating engine. The EMS enables high thermal efficiency of power train's operation by coordinated control of the D-4 direct injection gasoline engine and a belt type continuously variable transmission (CVT). Furthermore, a motor generator (M/ G) absorbs a part of braking energy for storage and uses it during acceleration. And it enables stop of the Engine while the vehicle stops running and smooth engine starting to decrease wasteful fuel consumption.