Method of controlling engine stop-start operation for heavy-duty hybrid-electric and hybrid-hydraulic vehicles
US7657350B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 30, 2007 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Nov 30, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/914
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
This invention relates to a Start-Stop method for a heavy-duty hybrid vehicle that turns off the internal combustion engine when the vehicle stops or, optionally, when the vehicle travels downhill. The Stop-Start method automatically restarts the internal combustion engine when the vehicle starts accelerating or is no longer traveling downhill. The software instructions for the Stop-Start method reside within the programming of the hybrid vehicle control computer as a subset of the hybrid vehicle control strategy in hybrid-electric or hybrid-hydraulic heavy-duty vehicle. During the time the internal combustion engine is turned off the necessary vehicle accessories operate from the available power of the hybrid high power energy storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.