For a series plug-in hybrid electric vehicle,higher working efficiency can be achieved by the drive system with two small motors in parallel than that with one big motor alone.However,the overly complex structure will...For a series plug-in hybrid electric vehicle,higher working efficiency can be achieved by the drive system with two small motors in parallel than that with one big motor alone.However,the overly complex structure will inevitably lead to a substantial increase in the development cost.To improve the system price-performance ratio,a new kind of series-parallel hybrid system evolved from the series plug-in hybrid system is designed.According to the technical parameters of the selected components,the system model is established,and the vehicle dynamic property and pure electric drive economy are evaluated.Based on the dynamic programming,the energy management strategy for the drive system under the city driving cycle is developed,and the superiority validation of the system is completed.For the studied vehicle driven by the designed series-parallel plug-in hybrid system,compared with the one driven by the described series plug-in hybrid system,the dynamic property is significantly improved because of the multi-power coupling,and the fuel consumption is reduced by 11.4%with 10 city driving cycles.In a word,with the flexible configuration of the designed hybrid system and the optimized control strategy of the energy management,the vehicle performance can be obviously improved.展开更多
插电式混合动力汽车(plug-in hybrid electric vehicle,PHEV)的电池容量大,能够接入外部电网充电;兼具燃油动力和电动驱动系统的优点,被认为是传统燃油汽车向纯电动汽车过渡的最佳方案。能量管理系统是实现整车需求能量在发动机和电动...插电式混合动力汽车(plug-in hybrid electric vehicle,PHEV)的电池容量大,能够接入外部电网充电;兼具燃油动力和电动驱动系统的优点,被认为是传统燃油汽车向纯电动汽车过渡的最佳方案。能量管理系统是实现整车需求能量在发动机和电动机之间分配的关键,插电式混合动力汽车的经济性、动力性与所采用的能量管理策略密切相关。对插电式混合动力汽车能量管理策略的研究发展进行了综述,对比了各种基于规则和基于优化的能量管理策略的优缺点,分析了驾驶数据与交通信息对能量管理策略的影响及存在的问题,最后,提出了插电式混合动力汽车能量管理策略的发展方向,为今后插电式混合动力汽车的研究提供参考。展开更多
基金supported by the National Natural Science Foundation of China(Grant No.51405259)China Postdoctoral Science Foundation funded project(Grant Nos.2014T70072&2013M530608)Colleges and Universities in Hebei Province Science and Technology Research Project(Grant No.QN2015056)
文摘For a series plug-in hybrid electric vehicle,higher working efficiency can be achieved by the drive system with two small motors in parallel than that with one big motor alone.However,the overly complex structure will inevitably lead to a substantial increase in the development cost.To improve the system price-performance ratio,a new kind of series-parallel hybrid system evolved from the series plug-in hybrid system is designed.According to the technical parameters of the selected components,the system model is established,and the vehicle dynamic property and pure electric drive economy are evaluated.Based on the dynamic programming,the energy management strategy for the drive system under the city driving cycle is developed,and the superiority validation of the system is completed.For the studied vehicle driven by the designed series-parallel plug-in hybrid system,compared with the one driven by the described series plug-in hybrid system,the dynamic property is significantly improved because of the multi-power coupling,and the fuel consumption is reduced by 11.4%with 10 city driving cycles.In a word,with the flexible configuration of the designed hybrid system and the optimized control strategy of the energy management,the vehicle performance can be obviously improved.
文摘插电式混合动力汽车(plug-in hybrid electric vehicle,PHEV)的电池容量大,能够接入外部电网充电;兼具燃油动力和电动驱动系统的优点,被认为是传统燃油汽车向纯电动汽车过渡的最佳方案。能量管理系统是实现整车需求能量在发动机和电动机之间分配的关键,插电式混合动力汽车的经济性、动力性与所采用的能量管理策略密切相关。对插电式混合动力汽车能量管理策略的研究发展进行了综述,对比了各种基于规则和基于优化的能量管理策略的优缺点,分析了驾驶数据与交通信息对能量管理策略的影响及存在的问题,最后,提出了插电式混合动力汽车能量管理策略的发展方向,为今后插电式混合动力汽车的研究提供参考。
