Function maintaining method for a fuel cell system
US6815108B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2003 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Nov 26, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A function maintaining method for fuel cell system, the fuel cell system including a fuel cell that is supplied fuel and an oxidant to generate electricity, a fuel tank that supplies the fuel to the fuel cell, a tank pressure sensor that detects the pressure of the fuel tank, and a control apparatus that controls the same. The function maintaining method comprises calculating, when a failure of the tank pressure sensor has been detected, the pressure of the tank before a predetermined time interval from the time of this detection and a fuel consumption amount and fuel discharge amount after the detection of the failure, and estimation the pressure of the tank by using the same. A fuel cell system is obtained which can maintain the function and reliability of the fuel cell system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.