Simulation of city bus performance based on actual urban driving cycle in China |
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Authors: | B H Wang Y G Luo J W Zhang |
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Institution: | (1) Department of Automobile Engineering, Hubei Automotive Industries Institute, Hubei, 442002, China;(2) School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai, 200240, China |
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Abstract: | This paper establishes the simulation model of a city bus on the basis of the EQ6110 bus prototype and its experimental data.
According to the actual urban driving cycle, the fuel economy and the traction performance of the EQ6110 city bus have been
simulated, and factors such as the driving cycle, the loss of power to engine accessories, the gear-shifting strategy, the
fuel shut-off strategy of the engine, etc., which influence on the bus’s fuel economy, are also quantitatively analyzed. Some
conclusions are drawn as follows: (1) driving cycles have a great influence on the fuel economy of a city bus; (2) under the
typical urban driving cycle of the public bus in China, the engine fuel shut-off strategy can save about 1 to 1.5 percent
of the fuel consumption; and (3) the optimized gear-shifting rules can save 6.7 percent of the fuel consumption. Experimental
results verify that the fuel economy for the EQ6110 public bus is improved by 7.2 pecent over the actual Wuhan urban driving
cycle of the current public bus in China. |
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Keywords: | Hybrid electric bus Urban drving cycle Modeling and simulation |
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