混合动力汽车的道路预见性节能技术及一种测评方法

打开文本图片集

Predictive energy-saving technologies of hybrid electric vehicles and an evaluation method

YANG Jianjun1，LIU Dongwei12，LIJingyuan’，LIU Shaohui1，ZHANG Feilong1， WANGMengyuan1

（1.ChinaAutomotiveTechnologyandResearchCenterCo.，Ltd.，Tianjin30o30o，China 2.SchoolofMechanicalEngineering，TianjinUniversity，Tianjin3ooo72，China）

Abstract：Astandardized test-evaluation method was proposed for the hybrid electric vehicles withor without "plug-in”to investigatethepredictive energysaving technologies for the national standards pre-research for automobileenergysaving.Byintegratingmap traffc information intoroad foresighttechnology，asetof critical data fields required for predictiveenergysaving was identifiedas wellas the necessity of standardization was emphasized.The energy-saving mechanism was improved through dynamic optimization： the state of charge （SOC）referencetrajectory was computed using global dynamic programming，and tracking control was achieved via Pl control. Simulation analyzed influence of initial SOC （20%～30%） and test conditions on the energy-saving performance.Basedon these findings，adynamometer test method was developed tostandardizeevaluation processes.Anevaluationwasconducted on the energy-saving effects of dynamometer tests fora specific vehicle.The results indicate that the dynamometer test on thevehicleachieved a 3.97% energy saving，with theSOC variation trend aligning with theoretical expectations.This demonstrates the feasibilityof evaluating energy-saving performance through dynamometer testing methods.

Key words： hybrid electric vehicles； predictiveenergysaving technology；energy management；dynamometer test；evaluationmethod

随着国家节能与新能源汽车节能标准的升级[1-2]，新能源汽车市场占有率不断提升，混合动力汽车成为当前市场主流技术产品[3]，混合动力汽车产品强调能量管理[4-6]，成为专用节能技术。（剩余14902字）