Invention Application
- Patent Title: MULTI-SPEED TRANSMISSION
- Patent Title (中): 多速传输
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Application No.: US14100330Application Date: 2013-12-09
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Publication No.: US20150159737A1Publication Date: 2015-06-11
- Inventor: 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
- Main IPC: F16H3/46
- IPC: F16H3/46

Abstract:
A family of transmission gearing arrangements produces nine forward speed ratios and one reverse speed ratio. Each arrangement includes a two state shift element. In a first state, the shift element passively holds a shaft against rotation in one direction while permitting rotation in the opposite direction. In a second state, the shift element holds the shaft against rotation in both directions. The shift element may be implemented as a combination of a one-way-brake and a dog clutch. Each arrangement also includes a gearing arrangement that produces three speed relationships between an input and an intermediate shaft, including an underdrive relationship, a reverse speed relationship, and holding the intermediate shaft against rotation.
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