四轮驱动混合动力轿车驱动防滑控制研究

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1、第47卷第14期机械工程学报Vol.47No.142011年7月JOURNALOFMECHANICALENGINEERINGJul.2011DOI：10.3901/JME.2011.14.083*四轮驱动混合动力轿车驱动防滑控制研究赵治国顾君余卓平(同济大学汽车学院上海201804)摘要：多动力源增加了混合动力汽车驱动轮转矩的调节方式，也对依赖常规防抱死制动系统(Anti-lockbrakingsystem,ABS)而实施的驱动防滑控制(Accelerationslipregulation，ASR)带来新的挑战。针对四轮驱动混合动力轿车，考虑非线性7自由度车辆纵向动力学，建立样车动力系统前向

2、仿真模型。利用转矩控制精确且响应快的电动机进行打滑车轮的转矩调整，基于既有并经验证的能量管理策略，开发逻辑门限及P-Fuzzy-PI多模态分段ASR控制算法，结合低附着系数路面纯电动起步及混合驱动急加速行驶工况进行离线仿真。通过整车电控单元(Hybridcontrolunit，HCU)引入前轮轮速传感器信号并集成ASR功能，在冰雪路面开展实车纯电动起步防滑试验。仿真及测试结果表明，所设计的两种ASR控制策略均能有效地抑制驱动轮的瞬时打滑，基于能量管理策略开发ASR控制算法并通过HCU来实施是可行且有效的。关键词：四轮驱动混合动力轿车驱动防滑逻辑门限控制P-Fuzzy-PI控制中图分类号：U4

3、63StudyofAccelerationSlipRegulationStrategyforFourWheelDriveHybridElectricCarZHAOZhiguoGUJunYUZhuoping(SchoolofAutomotiveStudies,TongjiUniversity,Shanghai201804)Abstract：Theuseofmultiplepowersourcesnotonlyincreasesthemodulationmeansofdrivingwheeltorque,butalsobringsanewchallengetotheaccelerationsli

4、pregulation(ASR)realizedbyrelyingonconventionalanti-lockbrakingsystem(ABS).Aimingatfourwheeldrivehybridelectriccar,apowertrainforwardsimulationmodelisbuiltwithconsiderationofthenonlinearsevendegree-of-freedomvehiclelongitudinaldynamics.Usingtheelectricmotorcharacterizedbytheaccuratecontrolandrapidr

5、esponseoftorquetoadjustthetorqueofslippingwheel,andbasedontheexistingenergymanagementstrategyvalidatedintherealvehicle,ASRcontrolalgorithmsoflogicthresholdandP-Fuzzy-PIhavingthequalitiesofmulti-modeandtime-sharingarerespectivelydeveloped,offlinesimulationisconductedunderthetworunningcasesofpureelec

6、triclaunchingandhybridpropulsionemergenceaccelerationatthelowadhesioncoefficientroad.Afterwards,frontwheelspeedsensorsignalsareacquiredbythehybridcontrolunit(HCU)andASRisintegratedintoHCU,realvehicleanti-sliptestisperformedonthesnow/iceroad.Simulationandtestresultsindicatethattheproposedtwokindsofa

7、nti-slipstrategiescaneffectivelyprohibitthedrivenwheelfromtransientslipping,sotheschemethatASRstrategycanbeintegratedintotheenergymanagementstrategyandbecarriedoutintheHCUisfeasibleandeffective.Keywords：Fou