Development Of Hydraulic Regenerative Braking Testbench
Hybrid vehicle is a vehicle that operates with the combination of two power sources. The hybrid technology helps reduces the vehicle fuel consumption and gas emissions through the regenerative braking and acceleration assist system. As most of the light duty vehicles are equipped with electric...
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| Format: | Monograph |
| Language: | English |
| Published: |
Universiti Sains Malaysia
2019
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| Online Access: | http://eprints.usm.my/58304/ http://eprints.usm.my/58304/1/Development%20Of%20Hydraulic%20Regenerative%20Braking%20Testbench.pdf |
| Summary: | Hybrid vehicle is a vehicle that operates with the combination of two power sources.
The hybrid technology helps reduces the vehicle fuel consumption and gas emissions through
the regenerative braking and acceleration assist system. As most of the light duty vehicles are
equipped with electric hybrid system, this project focuses on the implementation of hydraulic
hybrid system into the light passenger vehicle to study the performance of hydraulic hybrid
vehicle (HHV). The test bench for hydraulic hybrid system in parallel-through-the-road
architecture is developed which involved the processes of hydraulic configurations selection,
designing the control system, the hydraulic circuit layout and test bench CAD model, and
analyzing the expected performance of regenerative braking system. The performance
analysis comprises of V-belt drive selections for regenerative braking and validation of HHV
deceleration rate using drive cycle data. The V-belt selections analysis shows that one V-belt
type D can undergo regenerative braking without slip. For deceleration rate analysis, the
average deceleration rate of HHV is much higher than that from drive cycle with the
difference by 85% while the maximum deceleration rate of HHV have the difference by only
22% from the drive cycle value. Therefore, the modification on the control system is
necessary to control the HHV deceleration. With the result of these analyses, the modification
and complete fabrication of HHV test bench can be accomplished in future as well as the
testing of hydraulic hybrid operation. |
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