基于模糊控制策略液压混合动力汽车性能分析
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摘要
通过介绍模糊控制理论的基本原理,设计了液压混合动力汽车模糊控制策略的模糊控制器、相关参数的隶属度函数、模糊规则库等关键部件。提出用工况因数GK来反映车辆的运行工况,并建立了在Matlab/Simulink平台下的仿真模型。结果表明:设计的模糊控制策略可以有效调节期望车速、蓄能器SOC值;发动机扭矩更能靠近最佳经济区域运行;燃油经济性较规则控制策略提高约4.07%。
The basic principles of fuzzy control theory was introduced. The key components were designed, including the fuzzy controller and the membership function of the related parameters and the fuzzy rule rank, etc. The working condition factor GK was proposed to reflect the running conditions of the vehicles. The simulation model was established based on Matlab/Simulink platform. The results showed: the fuzzy control strategy designed in this paper was effective. It could regulate the expected speed and the accumulator SOC value. The engine torque could be operated more precisely in the optimal economic areas. The fuel economy was improved by 4.07% under the rule control strategy.
The basic principles of fuzzy control theory was introduced. The key components were designed, including the fuzzy controller and the membership function of the related parameters and the fuzzy rule rank, etc. The working condition factor GK was proposed to reflect the running conditions of the vehicles. The simulation model was established based on Matlab/Simulink platform. The results showed: the fuzzy control strategy designed in this paper was effective. It could regulate the expected speed and the accumulator SOC value. The engine torque could be operated more precisely in the optimal economic areas. The fuel economy was improved by 4.07% under the rule control strategy.
引文
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[2] 周鹏,杨静,康南.基于规则能量管理策略液压混合动力汽车性能分析[J].昆明冶金高等专科学校学报,2018(5):82-88.
[3] 周鹏,杨秀建,刘明勋.串联式液压混合动力车辆能量管理策略的设计与分析[J].机床与液压,2014(23):110-114.
[4] 周鹏.重型串联式液压混合动力汽车控制策略研究[D].昆明:昆明理工大学,2014.
[5] 中国公路学报编辑部.中国汽车工程学术研究综述2017[J].中国公路学报,2017,30(6):31-34.
[6] 曾小华,李广含,宋大凤,等.轮毂液压混合动力商用车主动防侧翻控制[J].吉林大学学报:工学版,2018(1):1-10.
[7] 赵鹏宇,陈英龙,周华,等.基于转矩预测的混合动力挖掘机控制策略[J].机械工程学报,2018,54(1):99-106.