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提出一种具有强电磁耦合特性的电磁耦合无级变速器,介绍了其工作原理和电磁特性。针对该装置接电池和不接电池的两种配置结构,分别讨论了可能的工作模式。基于内转子绕组与定子绕组之间的互感可忽略的特点,推导出ECVT的数学模型。利用提出的电磁计算公式,给出了两重气隙磁场的磁通密度、反电动势、磁通和齿槽转矩的稳态曲线。通过对其接电池时的瞬态工况仿真,验证了工况分析的合理性。在同等车载条件下与常规自动变速器相比,装有电磁耦合无级变速器的车辆有更好的燃油经济性。
An electromagnetically coupled continuously variable transmission with strong electromagnetism coupling characteristics is presented. Its operating principle and electromagnetic characteristics are introduced. For the device connected to the battery and the battery are not connected to the two configurations, respectively, discussed the possible mode of operation. Based on the negligible mutual inductance between inner rotor winding and stator winding, a mathematical model of ECVT is derived. The steady-state curves of magnetic flux density, back-emf, flux and cogging torque of two-gap air-gap magnetic field are given using the proposed electromagnetic calculation formula. Through the simulation of the transient conditions when it is connected to the battery, the rationality of working condition analysis is verified. Vehicles equipped with an electromagnetically coupled continuously variable transmission have better fuel economy than conventional automatic transmissions under the same on-board conditions.