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and real!time control of bucket hydraulic system for a wheel type loader earth moving equipment .pdf

and real!time control of bucket hydraulic system for a wheel type loader earth moving equipment .pdf

ID：33754070

大小：1.06 MB

页数：23页

时间：2019-02-28

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1、PERGAMONMechatronics7"0887#752774Modelingidenti_cationandreal!timecontrolofbuckethydraulicsystemforawheeltypeloaderearthmovingequipmentaabMikeCoboRichardIngramSabriCetinkuntaCATERPILLARInc[bDepartmentofMechanicalEn`ineerin`"MCF140#UniversityofIllinoisatChica`oChica`oIL59596!6911U[

2、S[A[Received4August0886^accepted18June0887AbstractTheearthmovingequipmentindustryisquicklygearinguptoachievegreatgainsine.ciencyperformancesafetyandoperatorcomfortbytherapiddeploymentofrecentdigitalcontroltechnologyinitsproducts[Therearetwomajortypesofearthmovingequipmentoperatinginlargen

3、umbers]excavatorsandwheeltypeloaders[Excavatorshavereceivedmuchattentionbytheindustryrecently[Thewheeltypeloaderproductstudiedinthispaperisanotherexampleofahighvolumeversatilemachineattheoppositeendofthecon_gurationspectrum[Astateoftheartelectro!hydraulicopencenterednon!pressurecompensate

4、dvalvecontrolsystemisstudiedtoevaluatethepotentialgainsbyimplementingdigitalvelocityservocontrol[Thecontrolobjectivesareto"0#meetoperatorperceivedresponserequirements"1#meetoperatorperceivedsmoothnessrequirements"2#createasub!systemthatcouldacceptcommandsfromanautonomoushighlevelplanningc

5、ontroller[Closedloopdigitalvelocitycontrolissuccessfullyimplementedintherackingmotionofawheelloaderusingastandardproportional!integral"PI#andadynamicvalvetransformalgorithm[Thedynamicvalvetransformisafunctionofhydraulic~owratewhichisafunctionofenginespeedandrodendcylinderpressure[Robustne

6、ssofperformancewasveri_edthroughextensivesystemmodelingvalidationandhardwaretestsonalargeCaterpillarwheelloadermodel889[0887PublishedbyElsevierScienceLtd[Allrightsreserved[0[IntroductionTheautomotiveindustryhasmadegreatgainsine.ciencyperformancesafetyandpassengercomfortbytheextensiveandra

7、piddeploymentoftherecentdigitalCorrespondingauthor[Tel[]0!201!885!8500^E!mail]scetinuic[edu98463047:87:,*seefrontmatter0887PublishedbyElsevierScienceLtd[Allrightsreserved[PII]S98463047"87#999274753M[Coboetal[:Mechatronics7"0887#752774controltechnologiesinitsp

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