Apparatus for and method of calculating torque of variable capacity compressor
US7721563B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 25, 2006 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Nov 27, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2001/3275
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An apparatus for calculating torque of a variable capacity compressor, including: a sensor configured to detect internal and external states of an air conditioner; an OFF-torque calculator configured to calculate and store a steady-state torque according to a state detected by the sensor just before a clutch is turned off; a start torque calculator configured to calculate a start torque according to a state detected by the sensor after the clutch is turned on; a steady-state full-stroke calculator configured to calculate a steady-state full-stroke torque based on an assumption that the compressor was in a full-stroke-state according to a state detected by the sensor after the clutch is turned on; and a determiner configured to provide, when an elapsed time after the clutch is turned on is less than a predetermined time, a maximum one of the torque values calculated by the OFF-torque calculator, start torque calculator, and steady-state full-stroke calculator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.