Noise-comfort function for cooling systems with proportional variable speed fans
US7793746B2 · kind B2 · utility
3Cited by
10References
6Claims
0Family size
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Key dates
| Filing date | Mar 9, 2007 |
| Grant date | Sep 14, 2010 |
| Priority date | — |
| Expiry date | Nov 25, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S903/908
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for operating a cooling system for a fuel cell stack in a vehicle is provided. The method includes the steps of: determining a fan request for a variable speed fan disposed in the cooling system; employing a noise-comfort function to select a fan comfort request; and adjusting a speed of the variable speed fan in response to the fan request; wherein a noise emission by the variable speed fan is militated against. A cooling system for a fuel cell stack in a vehicle that employs the noise-comfort function is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.