This paper develops a parallel hybrid electric vehicle(PHEV)propor-tional integral controller with driving cycle.To improve fuel efficiency and reduce hazardous emissions in hybrid electric vehicles(HEVs)combine an ele...This paper develops a parallel hybrid electric vehicle(PHEV)propor-tional integral controller with driving cycle.To improve fuel efficiency and reduce hazardous emissions in hybrid electric vehicles(HEVs)combine an electric motor(EM),a battery and an internal combustion engine(ICE).The electric motor assists the engine when accelerating,driving longer highways or climbing hills.This enables the use of a smaller,more efficient engine.It also makes use of the concept of regenerative braking to maximize energy efficiency.In a Hybrid Electric Vehicle(HEV),energy dissipated while braking is utilized to charge the battery.The proportional integral controller was used in this paper to analyze engine,motor performance and the New European Driving Cycle(NEDC)was used in the vehicle driving test using Matlab/Simulink.The proportional integral controllers were designed to track the desired vehicle speed and manage the vehi-cle’s energyflow.The Sea Lion Optimization(SLnO)methods were created to reduce fuel consumption in a parallel hybrid electric vehicle and the results were obtained for the New European Driving Cycle.展开更多
针对混合动力电动汽车(hybrid electric vehicle,HEV)控制系统CAN总线在调度信号时的不确定性和低优先级信号易死锁等问题,设计了基于截止期公差递增区分策略的混合调度算法进行优先级分配,并应用于HEV控制系统中。最后利用Truetime和dS...针对混合动力电动汽车(hybrid electric vehicle,HEV)控制系统CAN总线在调度信号时的不确定性和低优先级信号易死锁等问题,设计了基于截止期公差递增区分策略的混合调度算法进行优先级分配,并应用于HEV控制系统中。最后利用Truetime和dSPACE硬件在环平台进行实例HEV的CAN测试和功能仿真分析,验证了该混合调度算法的有效性,从而为研究新能源汽车(包括纯电动汽车、插电式混合动力汽车)的CAN总线数据通信提供一种新方法。展开更多
针对常用混合动力汽车(Hybrid electric vehicle, HEV)中锂离子电池在功率波动较大时难以满足需求,以及单个驱动周期内HEV燃油能耗大且能量不能很好回收等问题,研究采用锂离子电池和超级电容器混合储能系统(Lithium-ion battery and sup...针对常用混合动力汽车(Hybrid electric vehicle, HEV)中锂离子电池在功率波动较大时难以满足需求,以及单个驱动周期内HEV燃油能耗大且能量不能很好回收等问题,研究采用锂离子电池和超级电容器混合储能系统(Lithium-ion battery and super-capacitor hybrid energy storage system, Li-SC HESS)与内燃机共同驱动HEV运行.结合比例积分粒子群优化算法(Particle swarm optimization-proportion integration, PSO-PI)控制器和Li-SC HESS内部功率限制管理办法,提出一种改进的基于庞特里亚金极小值原理(Pontryagin s minimum principle, PMP)算法的HEV能量优化控制策略,通过ADVISOR软件建立HEV整车仿真模型,验证该方法的有效性与可行性.仿真结果表明,该能量优化控制策略提高了HEV跟踪整车燃油能耗最小轨迹的实时性,节能减排比改进前提高了1.6%～2%,功率波动时减少了锂离子电池的出力,进而改善了混合储能系统性能,对电动汽车关键技术的后续研究意义重大.展开更多
文摘This paper develops a parallel hybrid electric vehicle(PHEV)propor-tional integral controller with driving cycle.To improve fuel efficiency and reduce hazardous emissions in hybrid electric vehicles(HEVs)combine an electric motor(EM),a battery and an internal combustion engine(ICE).The electric motor assists the engine when accelerating,driving longer highways or climbing hills.This enables the use of a smaller,more efficient engine.It also makes use of the concept of regenerative braking to maximize energy efficiency.In a Hybrid Electric Vehicle(HEV),energy dissipated while braking is utilized to charge the battery.The proportional integral controller was used in this paper to analyze engine,motor performance and the New European Driving Cycle(NEDC)was used in the vehicle driving test using Matlab/Simulink.The proportional integral controllers were designed to track the desired vehicle speed and manage the vehi-cle’s energyflow.The Sea Lion Optimization(SLnO)methods were created to reduce fuel consumption in a parallel hybrid electric vehicle and the results were obtained for the New European Driving Cycle.
文摘针对混合动力电动汽车(hybrid electric vehicle,HEV)控制系统CAN总线在调度信号时的不确定性和低优先级信号易死锁等问题,设计了基于截止期公差递增区分策略的混合调度算法进行优先级分配,并应用于HEV控制系统中。最后利用Truetime和dSPACE硬件在环平台进行实例HEV的CAN测试和功能仿真分析,验证了该混合调度算法的有效性,从而为研究新能源汽车(包括纯电动汽车、插电式混合动力汽车)的CAN总线数据通信提供一种新方法。
