Electric oil pump system and controls for hybrid electric vehicles
US7395803B2 · kind B2 · utility
14Cited by
21References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2006 |
| Grant date | Jul 8, 2008 |
| Priority date | — |
| Expiry date | Nov 3, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/62
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An engine lubrication oil flow control system and control method for an engine in a hybrid electric vehicle powertrain is disclosed. An engine lubrication oil pump is powered by a lubrication oil pump motor. Provision is made to start the lubrication pump motor at the initiation of engine cranking upon a transition from an engine-off driving mode to an engine-on driving mode. An engine oil pressure signal is used to indicate engine filter maintenance is needed. The oil pump motor may be powered by a vehicle powertrain traction battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.