Invention Grant
- Patent Title: Four planetary-gearset step-ratio automatic transmission
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Application No.: US14282274Application Date: 2014-05-20
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Publication No.: US10247280B2Publication Date: 2019-04-02
- Inventor: Donald Edward Hoffman , Gregory Daniel Goleski
- Applicant: FORD GLOBAL TECHNOLOGIES, LLC
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: Brooks Kushman P.C.
- Agent David Kelley
- Main IPC: F16H3/66
- IPC: F16H3/66

Abstract:
A four gearing-arrangement transmission having six shift-elements cooperatively engaging in combinations of three to provide nine forward speeds and one reverse speed. The transmission having a first gearing-arrangement with an end-gear fixedly coupled to a ground. A second gearing-arrangement with one end-gear fixedly coupled to an input and the other end-gear fixedly coupled to an interior-gear of the first gearing-arrangement. A third gearing-arrangement having an interior-gear fixedly coupled to an output. A fourth gearing-arrangement having a fourth interior-gear fixedly coupled to the input.
Public/Granted literature
- US20150337925A1 FOUR PLANETARY-GEARSET STEP-RATIO AUTOMATIC TRANSMISSION Public/Granted day:2015-11-26
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