汽车起步过程离合器传递转矩精确计算分析.pdfVIP

汽车工程 Automotive 2008年(第30卷)第12期 Engineering 2008242 汽车起步过程离合器传递转矩精确计算分析木 胡建军，李光辉，伍国强，秦大同 (重庆大学，机械传动131家重点实验室。重庆400044) 【摘要] 在分析汽车起步时电控机械式自动变速器的离合器转矩传递过程的基础上，建立了汽车起步时离合 器传递转矩、滑磨功和雎盘表面温升的精确计算模型；推导出以离合器主、从动盘相对转速和离合器片表面温度为 主要影响因素的离合器片摩擦因数的公式；以某一轿车为实例，对其起步时离合器转矩传递特性进行仿真计算。 关键词：汽车起步；离合器；转矩传递；滑磨功；表面温度 AccurateCalculationofClutch TransmissionVehicle Torque During Starting Hu Guanghui，Wu Datong Jianjun，Li GuoqiangQin 400044 University，State研LabofMechanicalnammisswn，Chongqing Chongq／ng Basedon onthe transmissionintheclutchofanAMTvehicle [Abstract] the torque process during analysis of rise calculationmodelsforthetransmittedandfrictionworkclutchandthe starting，accurate torque temperature onclutch surface vehicle areset theformulaforthefrictioncoefficientofclutchlin— plate during starting up．Then ontherelative between anddriven ofclutchandthesurface ing，which rotatingspeed driving plates mainlydepends ofclutch asimulationcalculationonthe transmissioncharacteristicsof temperaturelining，isderived．Finally torque clutch vehicle isconductedforarealcar． during starting Keywords：vehiclestarting；dutch；torquetransmission；frictionwork；surfacetemperature AMT离合器转矩精确传递控制提供参考性的计算 刖舀