Oil pressure control for a variable camshaft timing system
US10202908B2 · kind B2 · utility
0Cited by
8References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2017 |
| Grant date | Feb 12, 2019 |
| Priority date | — |
| Expiry date | Aug 23, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Methods and systems are provided for adjusting an oil pressure supplied to an engine and a variable cam timing (VCT) responsive to a condition of the VCT system. In one example, a method may include adjusting the oil pressure based on engine speed, engine load, and engine oil temperature, and responsive to a request to shift the VCT system during specific engine operating conditions, increasing the oil pressure to an upper threshold oil pressure for the duration of the shift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.