纯电动汽车制动能量回收控制策略研究

纯电动汽车制动能量回收控制策略研究纯电动汽车制动能量回收控制策略研究

摘要：随着环保与新能源汽车的飞速发展，电动汽车越来越成为大众消费新的选择。然而，纯电动汽车在行驶过程中需要通过刹车来减速，而传统刹车方式会浪费大量能量，严重影响汽车的续航里程。因此，如何有效地利用制动时产生的能量回收，成为其中一个亟待解决的问题。本论文主要研究纯电动汽车制动能量回收控制策略，通过对纯电动汽车运动规律和能量消耗的分析，提出了一种基于车辆运动状态的制动能量回收控制策略。该控制策略可以在不干扰驾驶员刹车体验的情况下，实现高效能量回收，提高纯电动汽车的续航里程。同时，本研究还针对控制策略的实现方法进行了详细设计，并进行了仿真实验验证，验证结果表明，该方法能够有效地控制制动能量回收，提高纯电动汽车的续航里程，为电动汽车的发展提供了一定的理论支持。

关键词：纯电动汽车；制动能量回收；控制策略；续航里程；仿真实验

Abstract:Withtherapiddevelopmentofenvironmentalprotectionandnewenergyvehicles,electricvehiclesareincreasinglybecominganewchoiceforthepublicconsumption.However,pureelectricvehiclesneedtoslowdownthroughbrakingduringdriving,andthetraditionalbrakingmethodwillwastealotofenergy,seriouslyaffectingthevehicle'scruisingrange.Therefore,howtoeffectivelyusetheenergyrecoverygeneratedduringbrakinghasbecomeanurgentproblemtobesolved.Thispapermainlystudiesthecontrolstrategyofbrakingenergyrecoveryforpureelectricvehicles.Basedontheanalysisofthemotionlawandenergyconsumptionofpureelectricvehicles,abrakingenergyrecoverycontrolstrategybasedonvehiclemotionstateisproposed.Thiscontrolstrategycanachieveefficientenergyrecoverywithoutinterferingwiththedriver'sbrakingexperience,andimprovethecruisingrangeofpureelectricvehicles.Atthesametime,thisstudyhasalsodesignedthedetailedimplementationmethodofthecontrolstrategy,andconductedsimulationexperimentstoverifyit.Theresultsshowthatthismethodcaneffectivelycontrolthebrakingenergyrecovery,improvethecruisingrangeofpureelectricvehicles,andprovidecertaintheoreticalsupportforthedevelopmentofelectricvehicles.

Keywords:pureelectricvehicles;brakingenergyrecovery;controlstrategy;cruisingrange;simulationexperimentAselectricvehiclesbecomeincreasinglypopular,oneofthekeychallengesishowtoimprovetheircruisingrange.Brakingenergyrecoveryisaneffectivewaytoextendthecruisingrangeofpureelectricvehicles,butitalsopresentschallengesintermsofhowtocontroltherecoveryprocess.

Inthisstudy,acontrolstrategyforbrakingenergyrecoveryinpureelectricvehicleswasproposed,whichcombinestheregenerativebrakingsystemandthetraditionalhydraulicbrakingsystem.Thecontrolstrategydividesthebrakingenergyrecoveryprocessintothreestages:energyacquisition,energymanagement,andenergyutilization.

Duringtheenergyacquisitionstage,theregenerativebrakingsystemisusedtoconvertthekineticenergyofthevehicleintoelectricalenergy,whichisstoredinthebattery.Duringtheenergymanagementstage,thecontrolstrategyensuresthattheenergyisusedefficientlybybalancingthebatterycharginganddischarging.Finally,duringtheenergyutilizationstage,theenergystoredinthebatteryisusedtopowerthevehicle.

Simulationexperimentswereconductedtoverifytheeffectivenessoftheproposedcontrolstrategy.Theresultsshowedthatthecontrolstrategycaneffectivelycontrolthebrakingenergyrecoveryprocessandimprovethecruisingrangeofpureelectricvehicles.Thestudyprovidesimportanttheoreticalsupportforthedevelopmentofelectricvehicles.

Inconclusion,thecontrolstrategyproposedinthisstudyprovidesafeasiblesolutionforbrakingenergyrecoveryinpureelectricvehicles.Thecombinationofregenerativeandhydraulicbrakingsystems,aswellasthethree-stagecontrolstrategy,effectivelyimprovesthecruisingrangeofthevehicle.ThefindingsofthisstudyareofgreatsignificancetothedevelopmentandpromotionofelectricvehiclesMoreover,electricvehicleshavesignificantenvironmentalbenefitscomparedtotheirgasolinecounterparts.Theyproducesignificantlylesspollutionandgreenhousegasemissions,whichisanimportantfactorinthefightagainstclimatechange.Thisisduetothefactthatelectricvehiclesdonotproduceemissionsfromtailpipes,unliketraditionalgasolinevehicles.Furthermore,electricvehicleshavethepotentialtobepoweredbyrenewableenergysourcessuchaswindandsolarpower,makingthemevenmoreenvironmentallyfriendly.

Inadditiontotheirenvironmentalbenefits,electricvehiclesalsohaveavarietyofeconomicadvantages.Firstly,theyhaveloweroperatingcostscomparedtogasolinevehicles,astheyrequirelessmaintenanceandhavelowerfuelcosts.Theyalsohavethepotentialtoreducedependenceonforeignoilimports,astheycanbepoweredbydomesticallyproducedrenewableenergy.Electricvehiclesalsoprovideanopportunityforjobcreation,asthedevelopmentandproductionofelectricvehiclesrequiresskilledworkersinfieldssuchasengineering,manufacturing,andresearch.

Finally,electricvehicleshavethepotentialtochangethewaywethinkabouttransportation.Asmorepeopleadoptelectricvehicles,therewillbeashiftawayfromrelyingonfossilfuelsfortransportation,leadingtoareductionincarbonemissionsandairpollution.Thiswillalsoleadtoamoresustainableandequitabletransportationsystem,aselectricvehiclesareaccessibletoawiderrangeofpeoplethantraditionalgasolinevehicles.

Inconclusion,electricvehicleshavegreatpotentialasasolutiontotheenvironmental,economic,andtransportationchallengesfacingtheworldtoday.Theoreticalsupport,likethecontrolstrategyproposedinthisstudy,isessentialforfurtherdevelopmentandimprovementoftheelectricvehicleindustry.Withcontinuedresearchandinvestmentinelectricvehicletechnology,wecancreateamoresustainableandequitabletransportationsystemforeveryoneFurthermore,thewidespreadadoptionofelectricvehiclescouldalsohavepositiveeffectsonglobalhealth.Airpollutionfromtransportationcontributestovarioushealthproblemssuchasrespiratorydiseases,heartdisease,andcancer.Byreducingemissionsfromtransportation,wecouldimproveairqualityandreducetheprevalenceofthesehealthissues.

Additionally,electricvehiclescouldprovideeconomicbenefitsbycreatingnewjobsinmanufacturing,installation,andmaintenanceofelectricvehicleinfrastructure.Ashifttowardselectricvehicleusecouldalsoreducedependenceonforeignoilandincreaseenergysecurity.

However,challengessuchaslimiteddrivingrange,lackofcharginginfrastructure,andhighinitialcostsremainbarrierstowidespreadadoptionofelectricvehicles.Continuedinvestmentinresearchanddevelopmentisnecessarytoovercomethesebarriersandmakeelectricvehiclesmoreaccessibletoall.

Inconclusion,electricvehicleshavethepotentialtotransformthetransportationindustryandaddressenvironmental,economic,andhealthchallengesfacin