Valve control in an HVAC system with sensors
US9921011B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2014 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Feb 25, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/37333
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The present disclosure is directed towards a method of controlling opening of a valve (10) in an HVAC system (100). The method includes controlling the opening of the valve (10) according to a default control mode in dependence of a default sensor signal. The method further includes determining, while controlling the opening of the valve (10) according to the default control mode, whether the default sensor signal is faulty and switching, in case of the default sensor signal being faulty, to controlling the opening of the valve (10) according to a fallback control mode, with the opening of the valve (10) being controlled independently of the faulty sensor signal in the fallback control mode. The present invention is further directed towards a corresponding control device opening of a valve (10) in an HVAC system as well as a corresponding computer program product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.