Self-learning control system and method for controlling fan speed
US7362060B2 · kind B2 · utility
4Cited by
18References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 2005 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | May 24, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/88
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A feedback control logic system for commanding a particular air conditioning unit fan speed is driven by a pulse-width modulated signal from a control unit. The engine control unit decrements the pulse-width modulated signal to the air conditioning unit fan and allows the fan to run for a predetermined time. If a particular function, such as shutting off of an air conditioner pressure switch or other sensor, has not been achieved within the predetermined time, the engine control unit again decrements the pulse-width modulated signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.