DUAL-MODE ELECTROMECHANICAL VARIABLE SPEED TRANSMISSION APPARATUS AND METHOD OF CONTROL
    14.
    发明申请
    DUAL-MODE ELECTROMECHANICAL VARIABLE SPEED TRANSMISSION APPARATUS AND METHOD OF CONTROL 有权
    双模式电动变速传动装置及其控制方法

    公开(公告)号:US20100261565A1

    公开(公告)日:2010-10-14

    申请号:US12744584

    申请日:2008-11-28

    Abstract: The current invention discloses a dual-mode electro-mechanical variable speed transmission. Said transmission includes an input shaft, an output shaft system, a planetary gear system having at least three co-axial rotating members, two electric machines along with the associated controllers for the electric machines, and at least a clutch. Said planetary gear system has at least three branches; each branch corresponds to a co-axial rotating member. The first branch couples to the first electric machine with a fixed speed ratio; another branch couples to the input shaft with a fixed speed ratio; and yet anther branch couples to the output shaft system with a fixed speed ratio; the second electric machine couples selectively to two of the branches in the planetary gear system with different speed ratios. Said two branches are not the first branch and one of the said two branches is connected to the output shaft system. Said dual-mode electro-mechanical variable speed transmission is capable of providing at least two power splitting operation modes, including an output power splitting mode. Different operation modes cover different speed ratio regimes. At the mode switching point, the corresponding clutch or clutches is automatically synchronized. Thus the speeds of the rotation members of the transmission are continuous, and the transmission is free from shock loads at the operating mode switching point. In addition, said transmission is capable of providing operations with at least a fixed input-to-output speed ratio.

    Abstract translation: 本发明公开了一种双模机电变速传动装置。 所述变速器包括输入轴,输出轴系统,具有至少三个同轴旋转构件的行星齿轮系统,两个电机以及用于电机的相关联的控制器,以及至少一个离合器。 所述行星齿轮系具有至少三个分支; 每个分支对应于同轴旋转构件。 第一分支以固定速比耦合到第一台电机; 另一个分支以固定的速比耦合到输入轴; 而花药分支以固定的速比耦合到输出轴系统; 第二电机以不同的速比选择性地耦合在行星齿轮系中的两个分支中。 所述两个分支不是第一分支,并且所述两个分支中的一个连接到输出轴系统。 所述双模机电变速传动能够提供至少两个功率分离操作模式,包括输出功率分配模式。 不同的运行模式涵盖不同的速比方式。 在模式切换点,相应的离合器或离合器自动同步。 因此,变速器的旋转构件的速度是连续的,并且变速器在操作模式切换点处没有冲击载荷。 此外,所述传输能够提供至少具有固定的输入到输出速度比的操作。

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