Marine propulsion shift control
US7377827B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2004 |
| Grant date | May 27, 2008 |
| Priority date | — |
| Expiry date | Feb 23, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H23/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A marine propulsion system that utilizes a transmission shift sequence to control shifting of the propulsion system transmission between forward and reverse gears. The marine propulsion system includes a controller that executes the transmission shift sequence using engine speed and transmission fluid pressure signals to determine the timing of various steps in the shift sequence. The controller is connected to a shift actuator for the transmission and to an engine speed throttle to thereby control transmission shifting and engine speed as a part of the transmission shift sequence. By monitoring engine speed and transmission fluid pressure, and by controlling transmission shifting and engine speed settings, the transmission shift sequence can provide the operator with the ability to carry out quick shifts that will neither stall the engine nor damage the transmission clutch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.