公开(公告)号：US20140378266A1

公开(公告)日：2014-12-25

申请号：US13921903

申请日：2013-06-19

Applicant: GM Global Technology Operations LLC

Inventor： Casie M. Bockenstette ,  CARLOS E. MARIN ,  PAUL G. OTANEZ ,  CRAIG S. ROSS

IPC: F16H3/62

CPC classification number: F16H3/62 ,  F16H3/663 ,  F16H2200/0065 ,  F16H2200/201 ,  F16H2200/2012 ,  F16H2200/2023 ,  F16H2200/2046 ,  F16H2200/2082

Abstract: A transmission is provided having an input member, an output member, four planetary gear sets, a plurality of coupling members and a plurality of torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The torque transmitting devices include clutches and brakes including a selectable one-way clutch actuatable in combinations of two to establish a plurality of forward gear ratios and one reverse gear ratio. The transmission also includes a transmission auto start/stop enabler which includes a latch mechanism. The latch mechanism readies one of the plurality of torque transmitting devices during an engine auto stop/start event or in preparation for a stop of the motor vehicle.

Abstract translation: 提供一种变速器，其具有输入构件，输出构件，四个行星齿轮组，多个联接构件和多个扭矩传递装置。 每个行星齿轮组包括第一，第二和第三构件。 扭矩传递装置包括离合器和制动器，该离合器和制动器包括可组合的两个可启动的可选择的单向离合器，以建立多个前进档比和一个倒档。 变速器还包括一个包括闩锁机构的变速器自动启/停启动器。 在发动机自动停止/启动事件期间，或者准备停止机动车辆时，闩锁机构准备好多个扭矩传递装置中的一个。