根据常见的混合动力汽车动力系统的分布结构,以某国产传统燃油车为研究平台,在保证原车整体结构不变的前提下设计了1种新型两轴驱动混合动力汽车动力系统,车辆前桥保留了原车的动力总成,而在后桥加装了1套完整的电驱动系统.结合乘用车排放与能耗测试标准以及实际的运行工况特点,对后桥电驱动系统的相关动力部件进行了参数匹配,并完成了整车控制策略的设计,利用AVLCruise车辆性能仿真软件搭建了整车模型并进行了仿真分析.结果表明:该新型两轴驱动混合动力系统可以灵活切换车辆驱动模式以适应不同的行驶工况需求,同时在动力性方面相比原车有较大提升,燃油经济性方面较原车提高10.58％,整车性能改善明显.
Abstract
According to the distributed structure of common hybrid vehicle powertrains, a domestically traditional fuel vehicle was used as research platform, and a new twoaxis drive hybrid vehicle powertrain was designed without changing the overall structure of original vehicle. The powertrain of original car was retained, and a complete electric drive system was installed on the rear axle. Based on the passenger car emission and energy consumption test standards and the actual operating conditions, the parameters of relevant power components of the rear axle electric drive system were matched, and the vehicle control strategy was designed. The vehicle simulation model was established by AVLCruise, and the vehicle performance was also simulated and analyzed. The results show that the new twoaxis drive hybrid system can flexibly switch the vehicle drive mode to meet the requirements of different driving conditions. The new twoaxis drive hybrid system has greater improvement in power performance than the original vehicle, and the fuel economy is 10.58% higher than that of original vehicle with significantly improved vehicle performance.
关键词
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乘用车 /
两轴驱动 /
混合动力 /
燃油经济性 /
节能
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Key words
passenger car /
twoaxis drive /
hybrid /
fuel economy /
energy saving
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脚注
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基金
国家“863”计划项目（2011AA11A260）
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