Hybrid electric vehicle engine starting with a preloaded damper spring
US9145862B2 · kind B2 · utility
3Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 2013 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Feb 27, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/134
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for starting an engine includes preloading a spring of a torsion damper by transmitting torque having a magnitude less than engine cranking torque from an electric motor through a clutch to the spring, before cranking the engine, increasing a torque capacity of the clutch, and using the electric motor to crank the engine in response to a command to start the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.