电磁耦合无级变速传动系统

ELECTROMAGNETISM COUPLING CONTINUOUSLY VARIABLE TRANSMISSION SYSTEM

分析现有级联式电传动的优缺点,对其进行结构改进,形成一种电磁耦合无级变速传动系统。该系统主要由具有铁心绕组的转子和定子、附加调磁线圈、具有特殊磁极结构的杯形转子、感应式集流器和功率电子控制器等组成。该系统的特点是将级联式电传动与电磁滑差耦合式机械传动结合为一体,并加上非接触旋转输电,形成原动机的功率分汇流,配以变频与调磁相结合的调速手段,构成拓扑布局紧凑、调控性能优良、运转可靠的无级变速系统。经理论分析可知,系统在保持与常规电传动相当的宽广无级变速范围的同时,总体效率得到提高。系统在内燃机式汽车上使用时,可省去主离合器及发动机起动机等部件,配以储能电池组后,可以作为多能源动力总成直接应用于混合动力电动汽车上。

The characteristics of traditional series electronic transmission is studied. The improvement on it leads to a new type of electromagnetism coupling continuously variable transmission（ECCVT） system. It consists of a rotor and a stator including iron winding, an additive magnetic field adjusting winding, a cup-type rotor with special magnetic pole, inductive slip-rings and power electronic controller. Its specialty is that the traditional electronic transmission and electromagnetism coupling are combined and the electricity is transferred unosculantly, so that the power split is realized. The new system also puts up a compact topology, good control and stability by the way of frequency conversion and magnetic field adjusting. The academic analysis indicates that the system not only has a wide continuously variable range as the traditional electric motor, but also has a high efficiency. Being used on an internal-combustion engine vehicle, the clutch and starter are omitted. It also can be used as the multi-energy power-train assembly of hybrid electric vehicle accompanied with the electric energy storage set.