矿用重载车辆电子差速系统设计大学论文.doc

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1、矿用重载车辆电子差速系统设计摘要：为了降低能源消耗与减小环境污染，新能源电车已成为未来车辆行业发展的主要趋势。国、内外各大汽车生产厂商与科研院所纷纷投入大量的人力、物力、财力来研究、制造电车及其相关的零部件。目前轮毂电机驱动式电车以其简单的机械传动结构，较高的驱动效率，低廉的成本等诸多优点已成为研究的热点。但轮毂电机驱动式电车不能采用传统的机械差速器，来实现车辆的顺利转弯。而电子差速器则可以解决这一问题。同时，文章完成了电子差速系统硬件电路的设计、软件的设计、CAN通讯协议的设计。最后利用MATLAB/Simulink仿真软件，模拟仿真分析。通过仿真表明，电子差速控制系统设计合理，差速效果良好

2、。电子差速器的设计，解决了轮毂电机驱动式矿用重载车辆的转向问题。相比于传统的机械差速器，电子差速器避免了复杂的机械传动结构，大大简化了电车的底盘空间。另外，相比于其它的电子差速器，此电子差速器避免考虑路面及转向角度的问题，简化了控制计算方法，提高了控制系统的稳定性，使车辆具有更佳的转弯性能和控制响应。关键词：矿用重载车辆；轮毂电机；自适应；电子差速VDesignofelectronicdifferentialspeedsystemforheavydutyvehicleAbstract:Thenewenergyvehiclehasbecomethetrendoftheautomotiveindu

3、stryinthefuture,becauseitcanreducestheenergyconsumptionandenvironmentalpollution.Mostauto-builderandresearchinstituteshaveinvestedalotofmanpower,materialandfinancialtoresearchandmanufactureelectricvehicles.Recently,theelectricvehicleswhichdrovedbywheelmotorhasbecomethefocustoresearch,becauseithasasi

4、mplemechanicalstructure,higherdriveefficiency,lowercostandmanyotheradvantages.Buttheelectricvehicleswhichdrovedbywheelmotorcannotusethemechanicaldifferential,whenturning.Sotheelectronicdifferentialisneededtosolvethisproblem.Thearticleanalysesthestructureandmechanicsprincipleofmechanicaldifferential,

5、alsousedoftheprincipleofdifferentialunderthesameforceofmechanicaldifferential,putforwardacontrolstrategyofelectronicdifferential.Thedesignusedafront-wheel-drivebybrushlessDChubmotor,andanalysesthemotor’sstruckandworkingprinciple.ThroughbuildingthemathematicalmodelofbrushlessDChubmotor,analysestherel

6、ationofvariousparameters,andcombinedwiththespeedcontrolsystemofbrushlessDChubmotor,designedthespeedcontrolprogramofelectronicdifferential.Inordertoestablishamorespecificelectronicdifferentialcontrolmodel,thearticledesignedthehardwarecircuit,softwareandCANcommunicationprotocol.Lasttheelectronicdiffer

7、entialcontrolsystemwassimulatedbymatlab/simulink.Theresultsofthesimulationshowedthatthedesignofelectronicdifferentialcontrolsystemwasreasonableandelectronicdifferentialhadgoodeffectondifferential.Thee