Title:
Compact Car Regenerative Drive Systems: Electrical or Hydraulic
Compact Car Regenerative Drive Systems: Electrical or Hydraulic
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Author(s)
Lai, Quinn
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Abstract
The objective of the research is to address the power density issue of electric hybrids and
energy density issue of hydraulic hybrids by designing a drive system. The drive system
will utilize new enabling technologies such as the INNAS Floating Cup pump/pump
motors and the Toshiba Super Charge Ion Batteries (SCiB). The proposed architecture
initially included a hydraulic-electric system, where the high power braking power is
absorbed by the hydraulic system while energy is slowly transferred from both the Internal
Combustion Engine (ICE) drive train and the hydraulic drive train to the electric
accumulator for storage. Simulations were performed to demonstrate the control method
for the hydraulic system with in-hub pump motors. Upon preliminary analysis it is
concluded that the electric system alone is sufficient. The final design is an electric system
that consists of four in-hub motors. Analysis is performed on the system and MATLAB
Simulink is used to simulate the full system. It is concluded that the electric system has
no need for a frictional braking system if the Toshiba SCiBs were used. The regenerative
braking system will be able to provide an energy saving from 25% to 30% under the
simulated conditions.
Sponsor
Undergraduate Research Opportunities Program ; Price Gilbert Memorial Library System.
Date Issued
2010
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