In this paper, a plug-in hybrid electrical vehicle(PHEV) is taken as the research object, and its dynamic performance and economic performance are taken as the research goals. Battery charge-sustaining(CS) period is d...In this paper, a plug-in hybrid electrical vehicle(PHEV) is taken as the research object, and its dynamic performance and economic performance are taken as the research goals. Battery charge-sustaining(CS) period is divided into power mode and economy mode. Energy management strategy designing methods of power mode and economy mode are proposed. Maximum velocity, acceleration performance and fuel consumption are simulated during the CS period in the AVL CRUISE simulation environment. The simulation results indicate that the maximum velocity and acceleration time of the power mode are better than those in the economy mode. Fuel consumption of the economy mode is better than that in the power mode. Fuel consumption of PHEV during the CS period is further improved by using the methods proposed in this paper, and this is meaningful for research and development of PHEV.展开更多
The power split hybrid electric vehicle(HEV)adopts a power coupling configuration featuring dual planetary gearsets and multiple clutches,enabling diverse operational modes through clutch engagement and disengagement....The power split hybrid electric vehicle(HEV)adopts a power coupling configuration featuring dual planetary gearsets and multiple clutches,enabling diverse operational modes through clutch engagement and disengagement.The multi-clutch configuration usually involves the collaboration of two clutches during the transient mode switching process,thereby substantially elevating control complexity.This study focuses on power split HEVs that integrate multi-clutch mechanisms and investigates how different clutch collaboration manners impact the characteristics of transient mode switching.The powertrain model for the power-split HEV is established utilizing matrix-based methodologies.Through the formulation of clutch torque curves and clutch collaboration models,this research systematically explores the effects of clutch engagement timing and the duration of clutch slipping state on transient mode switching behaviors.Building upon this analysis,an optimization problem for control parameters pertaining to the two collaborative clutches is formulated.The simulated annealing algorithm is employed to optimize these control parameters.Simulation results demonstrate that the clutch collaboration manners have a great influence on the transient mode switching performance.Compared with the pre-calibrated benchmark and the optimal solution derived by the genetic algorithm,the maximal longitudinal jerk and clutch slipping work during the transient mode switching process is reduced obviously with the optimal control parameters derived by the simulated annealing algorithm.The study provides valuable insights for the dynamic coordinated control of the power-split HEVs featuring complex clutch collaboration mechanisms.展开更多
随着电动汽车技术的发展和综合性能要求的提高,辅助能量系统(Auxiliary power units,APUs,例如,空调系统、动力转向系统、制动系统、发动机冷却系统等)在混合动力汽车中发挥着愈来愈重要的作用。研究辅助能量系统在车辆行驶过程中的能...随着电动汽车技术的发展和综合性能要求的提高,辅助能量系统(Auxiliary power units,APUs,例如,空调系统、动力转向系统、制动系统、发动机冷却系统等)在混合动力汽车中发挥着愈来愈重要的作用。研究辅助能量系统在车辆行驶过程中的能量流变化,可进一步完善整车的综合能量流管理。分析APUs的工作特点,提出基于能耗map图的仿真思路,通过对ADVISOR软件的二次开发,设计APUs的仿真模型,分别建立传统公交车、串联混合动力和并联混合动力城市公交车的综合能量流模型,完善了传统汽车及HEV的仿真模型。在此基础上对APUs对整车经济性的影响进行仿真研究,仿真研究结果表明,电动汽车附件系统在整车能耗上占有相当的比重,在美国城市循环、ECE循环工况和武汉城市公交车循环工况下,公交车辅助能量附件系统能耗比例最大为10%、最小为6.1%。展开更多
建立了并联式混合动力电动汽车(Parallel Hybrid Electric Vehicles,PHEV)在混合驱动工作模式下动力分配装置的数学模型,并在Matlab/Simulink仿真平台上对此模型进行了仿真,得出了其转速特性、功率分配特性和扭矩输出特性曲线。仿真结...建立了并联式混合动力电动汽车(Parallel Hybrid Electric Vehicles,PHEV)在混合驱动工作模式下动力分配装置的数学模型,并在Matlab/Simulink仿真平台上对此模型进行了仿真,得出了其转速特性、功率分配特性和扭矩输出特性曲线。仿真结果表明,该装置达到了低油耗、低排放和节能的目标,可为进一步研究PHEV动力匹配的优化及其整车控制提供参考。展开更多
辅助动力单元(auxiliary power unit,APU)的系统构型和控制策略对串联混合动力汽车的燃油经济性有很大的影响.利用Matlab/Simulink建立了带有PWM整流器和不可控整流器的两种APU系统模型,并分别将ON/OFF控制策略和负载跟随控制策略应用...辅助动力单元(auxiliary power unit,APU)的系统构型和控制策略对串联混合动力汽车的燃油经济性有很大的影响.利用Matlab/Simulink建立了带有PWM整流器和不可控整流器的两种APU系统模型,并分别将ON/OFF控制策略和负载跟随控制策略应用在两种APU系统中,利用能量流图分析了系统主要部件的效率.仿真结果表明,相比带有不可控整流器构型的APU及负载跟随控制方法,采用PWM整流器构型的APU及ON/OFF的控制方法具有较好的燃油经济性.展开更多
文摘In this paper, a plug-in hybrid electrical vehicle(PHEV) is taken as the research object, and its dynamic performance and economic performance are taken as the research goals. Battery charge-sustaining(CS) period is divided into power mode and economy mode. Energy management strategy designing methods of power mode and economy mode are proposed. Maximum velocity, acceleration performance and fuel consumption are simulated during the CS period in the AVL CRUISE simulation environment. The simulation results indicate that the maximum velocity and acceleration time of the power mode are better than those in the economy mode. Fuel consumption of the economy mode is better than that in the power mode. Fuel consumption of PHEV during the CS period is further improved by using the methods proposed in this paper, and this is meaningful for research and development of PHEV.
基金funded by the National Natural Science Foundation of China(Grant No.51905219,No.52272368)the Postdoctoral Science Foundation of China(Grant No.2023M731444)+2 种基金the Young Elite Scientists Sponsorship Program by CAST(2020QNRC001)the Key Research and Development Program of Zhenjiang City(No.GY2021001)the Project of Faculty of Agricultural Equipment of Jiangsu University(No.NZXB20210103).
文摘The power split hybrid electric vehicle(HEV)adopts a power coupling configuration featuring dual planetary gearsets and multiple clutches,enabling diverse operational modes through clutch engagement and disengagement.The multi-clutch configuration usually involves the collaboration of two clutches during the transient mode switching process,thereby substantially elevating control complexity.This study focuses on power split HEVs that integrate multi-clutch mechanisms and investigates how different clutch collaboration manners impact the characteristics of transient mode switching.The powertrain model for the power-split HEV is established utilizing matrix-based methodologies.Through the formulation of clutch torque curves and clutch collaboration models,this research systematically explores the effects of clutch engagement timing and the duration of clutch slipping state on transient mode switching behaviors.Building upon this analysis,an optimization problem for control parameters pertaining to the two collaborative clutches is formulated.The simulated annealing algorithm is employed to optimize these control parameters.Simulation results demonstrate that the clutch collaboration manners have a great influence on the transient mode switching performance.Compared with the pre-calibrated benchmark and the optimal solution derived by the genetic algorithm,the maximal longitudinal jerk and clutch slipping work during the transient mode switching process is reduced obviously with the optimal control parameters derived by the simulated annealing algorithm.The study provides valuable insights for the dynamic coordinated control of the power-split HEVs featuring complex clutch collaboration mechanisms.
文摘随着电动汽车技术的发展和综合性能要求的提高,辅助能量系统(Auxiliary power units,APUs,例如,空调系统、动力转向系统、制动系统、发动机冷却系统等)在混合动力汽车中发挥着愈来愈重要的作用。研究辅助能量系统在车辆行驶过程中的能量流变化,可进一步完善整车的综合能量流管理。分析APUs的工作特点,提出基于能耗map图的仿真思路,通过对ADVISOR软件的二次开发,设计APUs的仿真模型,分别建立传统公交车、串联混合动力和并联混合动力城市公交车的综合能量流模型,完善了传统汽车及HEV的仿真模型。在此基础上对APUs对整车经济性的影响进行仿真研究,仿真研究结果表明,电动汽车附件系统在整车能耗上占有相当的比重,在美国城市循环、ECE循环工况和武汉城市公交车循环工况下,公交车辅助能量附件系统能耗比例最大为10%、最小为6.1%。
文摘建立了并联式混合动力电动汽车(Parallel Hybrid Electric Vehicles,PHEV)在混合驱动工作模式下动力分配装置的数学模型,并在Matlab/Simulink仿真平台上对此模型进行了仿真,得出了其转速特性、功率分配特性和扭矩输出特性曲线。仿真结果表明,该装置达到了低油耗、低排放和节能的目标,可为进一步研究PHEV动力匹配的优化及其整车控制提供参考。
基金Supported by National Natural Science Foundation(NNSF)of China(51105220)funded by the MOST(Ministry of Science and Technology)of China(20103010017),funded by the MOST(Ministry of Science and Technology)of China(20111861171)funded by the Tsinghua University Initiative Scientific Research Program(2010THZ08116)
文摘辅助动力单元(auxiliary power unit,APU)的系统构型和控制策略对串联混合动力汽车的燃油经济性有很大的影响.利用Matlab/Simulink建立了带有PWM整流器和不可控整流器的两种APU系统模型,并分别将ON/OFF控制策略和负载跟随控制策略应用在两种APU系统中,利用能量流图分析了系统主要部件的效率.仿真结果表明,相比带有不可控整流器构型的APU及负载跟随控制方法,采用PWM整流器构型的APU及ON/OFF的控制方法具有较好的燃油经济性.
