Optimizing the automatic engine start/stop mechanism for driving operation
US9926902B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2016 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Nov 4, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system and method for starting/stopping an engine in a moving vehicle include stopping the engine, by a controller, in response to a time needed to start the engine from a stopped state and attain an engine speed corresponding to a driveshaft speed when stopping the engine being less than a target time, and starting the engine in response to the time needed reaching the target time. A start/stop vehicle having an engine includes a driveshaft speed sensor and a controller configured to stop the engine while the vehicle is moving with a vehicle speed below a threshold speed in response to a time associated with starting the engine and powering a driveshaft to attain a driveshaft speed measured by the driveshaft speed sensor and stored from a previous engine stopping event being less than a threshold time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.