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Development of a Hybrid Bus With a Hydraulic Energy Storage System-Brake Energy Recovery System as a Low Pollutant Secondary Power Source
Published October 19, 1993 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Autumn Conference
A hybrid bus with a brake energy recovery system is being developed which converts vehicle kinetic energy into the form of hydraulic pressure during braking, and utilizes the stored energy for accelerating the vehicle. The measured system efficiency was about 70%. Vehicle was tested over a typical city bus operation cycle. Test results proved several merits of the system, such as mileage improvement by 26%, reduction of NOx, smoke and service brake work by 27%, 70% and 90%, respectively.