Invention Grant
- Patent Title: Multi-speed transmission having a stacked planetary gear set
- Patent Title (中): 具有堆叠行星齿轮组的多速变速器
-
Application No.: US13308143Application Date: 2011-11-30
-
Publication No.: US08715131B2Publication Date: 2014-05-06
- Inventor: Edward W. Mellet , James B. Borgerson , James M. Hart
- Applicant: Edward W. Mellet , James B. Borgerson , James M. Hart
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations
- Current Assignee: GM Global Technology Operations
- Current Assignee Address: US MI Detroit
- Main IPC: F16H3/66
- IPC: F16H3/66 ; F16H1/46

Abstract:
A transmission of the present invention has an input member, an output member, two planetary gear sets, a planetary gear set assembly, 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 planetary gear set assembly is a stacked planetary gear set that includes a first, second, third and fourth member. The torque transmitting devices may include clutches and brakes. The torque transmitting devices are each selectively engageable in combinations of at least three to establish at least eleven forward speed ratios and at least one reverse speed ratio.
Public/Granted literature
- US20130137544A1 MULTI-SPEED TRANSMISSION HAVING A STACKED PLANETARY GEAR SET Public/Granted day:2013-05-30
Information query