Advanced Automotive Technology: Visions of a Super-Efficient Family Car

TABLE A-5: Energy Use for a Current (1995)

Mid-size Car Converted to an HEV

(kWh)

Urban

Tractive energy 0.201

Motor output 0.214

Regenerative braking recovery 0.045

Tractive energy input 0.216

Engine output

a 0.315

Fuel economy, mpg 32.7

Percent improvement over 1995 base 44.1

Highway

0.184

0.192

0.008

0.205

0.263

41.2

8.4

ZIAs~um~ ba~eri~ r~harged to initial state at end Of Cycle. Analysis assumes highly optimized

electrical drivetrain components.

SOURCE: Energy and Environmental Analysis, Inc., “Automotive Technologies To Improve Fuel
Economy to 2015,”report prepared for the Office of Technology Assessment, June 1995, p. 1O-64..