Hybrid Electric Vehicle Energy Management
Date Issued
2006
Date
2006
Author(s)
Li, Chiao-Ting
DOI
zh-TW
Abstract
The energy crisis and pollution problem of the earth promote the development of electric vehicles, which are well known by high efficiency and low emission. The research of hybrid electric system is used to extend the mileage of electric vehicles. This thesis brings out complete planes of electric system and designs the energy management of two hybrid electric vehicles, a solar racing car and a fuel cell hybrid car. The solar car, FORMOSUNⅢ, has been proven by test drives and the race, WSC, World Solar Challenge. The fuel cell hybrid car has finished MATLAB/Simulink simulation and been compared with a reference case.
FORMOSUNⅢ is designed and built for participating WSC in Australia at 2005. FORMOSUNⅢ adopts backward facing energy management, including equally distribution of battery state of charge, using curve fitting as solar power generation forecast, and constant-power cruising. The on car computer is a 16 bit microcontroller, which realized auto-cruising during the race. FORMOSUNⅢ hit the finish line at the fifth place.
Department of mechanical engineering of National Taiwan University starts the research of zero-emission vehicle at 2005, and picked fuel cell and lithium-polymer battery as the form of hybridization. This fuel cell hybrid car is designed to drive in urban area. The performances of the car, such as maximum speed, acceleration and hill climbing, are similar to those of conventional cars. So the car gives considerations to both driving performances and fuel economy. The fuel cell hybrid car adopts forward facing energy management, and uses the standard, SAE J1711, as the criterion during simulations. This thesis develops dynamic-adjust method, which makes the fuel cell hybrid car have good fuel economy in UDDS and HWFET driving cycles, and also be able to provide sufficient power to pass the accelerating test in US-06 driving cycle.
Subjects
複合電動車
太陽能車
燃料電池車
能量管理
hybrid car
solar car
fuel cell car
energy management
SDGs
Type
thesis
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