HITACHI : Reduction of CO<sub>2</sub> Emissions for Automotive Systems

	Volume 57 Number 5 September 2008
	Special Issue

AUTHORS

Junichi Ishii	Development Strategy Office, Automotive Systems R&D Lab., Automotive Systems, Hitachi, Ltd.
Minoru Osuga	Control System Design Dept., Powertrain Design Div., Powertrain Systems Div., Automotive Systems, Hitachi, Ltd.
Takashi Okada	Third Dept. of Systems Research, Hitachi Research Lab., Hitachi, Ltd.
Hideki Miyazaki	Advanced Inverter Systems R&D Center, Hitachi Research Lab., Hitachi, Ltd.
Mitsuru Koseki	Battery Design & Development Div., Hitachi Vehicle Energy, Ltd.
Koichiro Tanikoshi	R&D Strategy Center, Research and Development Gr., Hitachi, Ltd.

OVERVIEW

The amount of CO₂ emission from the transport sector (including cars) accounts for about 20% of total CO₂ emissions. Accordingly, from the viewpoint of preventing global warming, reducing that proportion is a key issue. In regard to CO₂ emissions from cars, fuel economy standards are getting tougher all over the world, so improving fuel economy of cars is strongly desired. From now onwards, it is considered that fuel economy of engines will be further improved by boosting engine efficiency and by hybridization (electrification) of cars. What's more, improving fuel economy by improving "driving operation" (i.e. the operation in which a car is driven) and by smoothing traffic flows will come into the picture in the near future. Under these circumstances, with concern for the environment from the viewpoint of reducing CO₂ and other exhaust emissions, the Hitachi Group is comprehensively promoting a broad range of technical developments for reducing CO₂ emissions from cars.