Idle control device for fuel cell vehicle
US6484075B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2001 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Jun 7, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In order to improve the fuel consumption efficiency of the fuel cell vehicles, a control flow is provided, in which, first, it is determined whether the vehicle speed VST is lower than a predetermined speed ISTP (step S01), whether a motor output PMCMD including the driving motor and the motor for driving the air compressor is less than a predetermined motor output ISTPPM (step S04), whether the brake is in the ON state (step S05), and whether the terminal voltage Vst of the power storage unit is higher than predetermined values VISTPH and VISTPL (step S06). When all of the determinations are “YES”, a permission flag for executing the idle stop F_ISTP is set to “1”, and if any of them is “NO”, the permission flag F_ISTP is set to “0”.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.