Vehicle control system
US7813849B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2009 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Jul 23, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/62
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a vehicle control system, an opportunity for detecting abnormalities in an atmospheric pressure sensor using an intake pressure sensor of the engine is appropriately provided. A vehicle control system 10 includes an engine 12, rotating electric machines 14 and 16, a power supply circuit 18, an intake pressure sensor 20, an atmospheric pressure sensor 22, an IG-ON/OFF switch 70, and a control device 48. A control unit 50 of the control device 48 includes a system start/stop module 52 which starts and stops operation of the entire system, a sensor state determination module 54 which determines whether the atmospheric pressure sensor 22 is in an abnormal state based on a detection value of the intake pressure sensor 20, a boosting limit module 56 which limits the boosting voltage of the voltage converter 34 corresponding to a detection value of the atmospheric pressure sensor 22, and a power supply stop delaying module 58 which delays a stop of electric power supply from a low-voltage battery 44 for a predetermined period after the engine stopped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.