【摘要】 阐述了借鉴差速器设计混合动力汽车(HEV)动力耦合装置(PSD)的方法。由于HEV中的PSD与传统差速器不同,经常处于高转速工况工作,为此,分析了对差速齿轮进行改进设计的必要性,在Advisor软件中建立了仿真模型,得到了车辆在NEDC(New European Driving Cycle)工况行驶时PSD各齿轮的转速与扭矩曲线,对PSD齿轮进行了改进设计。建立了基于精确球面渐开线直齿锥齿轮三维模型,并进行了接触有限元分析,验证了此种方法建立PSD齿轮分析模型的可行性。更多还原

【Abstract】 To applying conventional automotive differential as Power-Split Device(PSD)make it into a new kind of device.But it is different from a conventional automotive differential,the bevel gears in the PSD works under high rotational speed and low torque condition,that means it need to be redesigned.The working principle of the differential coupling device is introduced.The working condition of the gears is obtained by simulation on New European Driving Cycle(NEDC).After that,the gears of the new device are redesigned.A pair of 3D bevel gear model based on spherical involute curve are established,the finite element analysis result shows the method of building PSD analytical model is feasible.更多还原