Invention Application
- Patent Title: METHOD FOR CONTROLLING UPSHIFT SEQUENCING
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Application No.: US15484785Application Date: 2017-04-11
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Publication No.: US20180292003A1Publication Date: 2018-10-11
- Inventor: Henry R. Wright , Brandon M. Fell , Mateusz M. Nowak
- Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Main IPC: F16H61/02
- IPC: F16H61/02

Abstract:
A method for transmission upshift sequencing includes detecting a lift foot gear hold condition is met and that a current engine speed is greater than a pattern gear engine speed for the current gear. If these conditions exists then the current gear is held until a first sequence timer expires and then an upshift event occurs to a first gear having an engine speed less than the current engine speed. The first gear is then held until a at least one other sequence timer expires and, thereafter, at least one other gear is selected and held until the engine speed is less than or equal to a pattern gear engine speed.
Public/Granted literature
- US10316961B2 Method for controlling upshift sequencing Public/Granted day:2019-06-11
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