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Tuesday, November 2, 2010

Hybrid electric bus city bus driving cycle test under the condition of the energy

In recent years, due to the increasingly serious energy and environmental pressures, countries have increased investment in R & D of new energy vehicles, rapid development of electric vehicles, electric vehicles, many products have been rapidly expanded. In the early 90's began a hybrid electric vehicle research, "fifth" period, electric car project is included in the 12 major projects in large and successfully developed a prototype high-performance index and its commercial products and some of the results has been put into trial operation in the actual road, their actual use of technology assessment and verification. But the current hybrid buses in the actual use of energy efficiency testing standards and influencing factors of energy consumption is still not perfect, it has also become restricted the development of hybrid commercial operation of a major problem. In this paper, the full evaluation of the energy consumption of domestic HEV standards and regulations, in accordance with heavy-duty hybrid electric power GB/T17954-2002 test criteria to the actual traffic in Wuhan city bus routes to test energy consumption, the main contents include: research mix Power consumption evaluation transit vehicles for test vehicles, the Institute uses battery power consumption calculation method and the system is converted to electrical energy equivalent fuel consumption is calculated; to develop hybrid buses is a test vehicle program, research in Wuhan City bus road conditions, route selection method using two factors can select more than approximate Fanying Wuhan Bus driving conditions road test route for the actual energy consumption test; for hybrid vehicles of the isokinetic Bus Test hundred kilometers, as well as in Wuhan city bus driving conditions of the study, selected as the 510 line, the energy consumption of hybrid electric test bus routes, traffic analysis and comparison of hybrid buses in the constant speed driving conditions and actual conditions of different bus routes, and analysis operation of hybrid vehicles demonstrate fuel public transport vehicles with traditional energy difference. By analyzing the test results in Wuhan city bus driving cycle conditions of the actual energy consumption and evaluation of the use of hybrid buses and the lack of superiority of control strategy. 

Keywords: HEV power test standards, renewable energy storage system, the net change in the amount of energy NEC, Wuhan City, the road conditions, pilot programs, energy consumption.

 

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