混合動(dòng)力汽車的道路預(yù)見(jiàn)性節(jié)能技術(shù)及一種測(cè)評(píng)方法

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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

隨著國(guó)家節(jié)能與新能源汽車節(jié)能標(biāo)準(zhǔn)的升級(jí)[1-2]，新能源汽車市場(chǎng)占有率不斷提升，混合動(dòng)力汽車成為當(dāng)前市場(chǎng)主流技術(shù)產(chǎn)品[3]，混合動(dòng)力汽車產(chǎn)品強(qiáng)調(diào)能量管理[4-6]，成為專用節(jié)能技術(shù)。（剩余14902字）