Invention Grant
- Patent Title: Systems and methods for controlling transmission valves in a marine propulsion device
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Application No.: US16734008Application Date: 2020-01-03
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Publication No.: US11459076B1Publication Date: 2022-10-04
- Inventor: Brett Bielefeld , Charles A. Lubitz , Matthew W. Snyder
- Applicant: Brunswick Corporation
- Applicant Address: US IL Mettawa
- Assignee: Brunswick Corporation
- Current Assignee: Brunswick Corporation
- Current Assignee Address: US IL Mettawa
- Agency: Andrus Intellectual Property Law, LLP
- Main IPC: B63H23/30
- IPC: B63H23/30 ; B63H21/21 ; F16H61/02 ; B63H23/02 ; F16K31/02 ; B63H23/26 ; F16K29/00

Abstract:
A method for controlling a valve to disengage a gear in a transmission. The method includes reducing, after receiving a request to disengage the gear, a current supplied to the valve from a starting to a first current. The method further includes counting a first elapsed time since the valve was reduced to the first current, comparing the first elapsed time to a first wait time, and increasing the current supplied to the valve to a second current once the first elapsed time exceeds the first wait time. The method further includes counting a second elapsed time since the valve was increased to the second current, comparing the second elapsed time to a second wait time, and reducing the current supplied to the valve to a third current once the second elapsed exceeds the second wait time. The valve is closed when the current is the third current.
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