Electric control method and apparatus for air conditioners
US4358936A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1980 |
| Grant date | Nov 16, 1982 |
| Priority date | — |
| Expiry date | Sep 26, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2001/327
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In control of the cooling ability of an automobile air conditioner, an electric control method comprises the steps of detecting a deviation between the actual in-car temperature and a desired value upon each lapse of a predetermined period of time, comparing the detected deviation with a predetermined value and maintaining the cooling ability of the air conditioner when the detected deviation is larger than the predetermined value, comparing the detected deviation with the preceding detected deviation when the detected deviation is smaller than or equal to the predetermined value and maintaining the cooling ability of the air conditioner when the detected deviation is larger than or equal to the preceding detected deviation, decreasing the cooling ability of the air conditioner when the detected deviation is smaller than the preceding detected deviation, and increasing the cooling ability of the air conditioner when the detected deviation is larger than each of the predetermined value and the preceding detected deviation, thereby to reduce unnecessary engine power torque losses caused by operation of the air conditioner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.