Control method of cooling water pump of fuel cell vehicle
US9770999B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 13, 2016 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Apr 13, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A control method of a cooling water pump of fuel cell vehicle is provided. The method includes comparing a derived temperature value, including a cooling water temperature of a fuel cell or an estimated temperature of a stack of the fuel cell, with predetermined temperature criteria and comparing a required output value of the stack of the fuel cell with predetermined output criteria. The cooling water pump is then operated in a normal mode when the derived temperature value is greater than the temperature criteria or when the required output value is greater than the output criteria. Additionally, the cooling water pump is operated in a stop mode when the derived temperature value is less than the temperature criteria and, simultaneously, when the required output value is less than the output criteria.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.