System and method for engine start detection for hybrid vehicles
US7350602B2 · kind B2 · utility
8Cited by
22References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2004 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Jan 9, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/905
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for operating a hybrid vehicle having a primary power generating system and a secondary power generating system coupled via a power transmission assembly for delivery of tractive force for the vehicle. The method includes determining acceleration of input speed to the power transmission assembly when the primary power generating system is deactivated, and inferring activation of the primary power generating system based at least in part on the acceleration of the power transmission assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.