Invention Application
- Patent Title: MULTI-MODE CONTINUOUSLY VARIABLE TRANSMISSION WITH SELECTABLE TRANSFER GEARS
- Patent Title (中): 多模连续可变传输与可选传输齿轮
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Application No.: US14477415Application Date: 2014-09-04
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Publication No.: US20160069440A1Publication Date: 2016-03-10
- Inventor: Dan Coffey , Tejinder Singh
- Applicant: GM Global Technology Operations LLC
- Applicant Address: US MI Detroit
- Assignee: GM Global Technology Operations LLC
- Current Assignee: GM Global Technology Operations LLC
- Current Assignee Address: US MI Detroit
- Main IPC: F16H37/02
- IPC: F16H37/02 ; F16H63/28

Abstract:
A multi-mode continuously variable transmission (CVT) for a motor vehicle includes a transmission input member, a transmission output member, a planetary gear set, a forward clutch, a brake, and a continuously variable unit having a first pulley, a second pulley, and an endless member wrapped around the first pulley and the second pulley. A first transfer gear set is connected to the transmission output member. A second transfer gear set is connected to the transmission output member. A dual clutch assembly is provided having a first clutch and a second clutch, wherein the first clutch selectively connects the second pulley to the first transfer gear set and the second clutch selectively connects the second pulley to the second transfer gear set. The dual clutch assembly provides two modes or ranges of continuously variable speed ratios between the transmission input member and the transmission output member.
Public/Granted literature
- US09347537B2 Multi-mode continuously variable transmission with selectable transfer gears Public/Granted day:2016-05-24
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