Systems and methods for facilitating shift changes in marine propulsion devices
US9422047B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2014 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Apr 15, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63H2021/216
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Systems and methods are for facilitating shift changes in a marine propulsion device. The systems comprise an internal combustion engine; a shift linkage that operatively connects a shift lever to a transmission for effecting shift changes amongst a reverse gear, a neutral gear and a forward gear; a speed sensor that senses current speed of the engine; and a control circuit that controls the engine to provide a reduction in speed of the engine to facilitate a shift change. The control circuit compares the current speed of the engine to a stored threshold speed and waits to invoke a reduction in speed of the engine until the current speed of the engine reaches the stored threshold speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.