Air conditioning installation with an external temperature estimator, especially for a motor vehicle
US6123146A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1997 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Oct 30, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H1/00735
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A motor vehicle air conditioning installation has a cold loop, a hot loop, a sensor for measuring cabin temperature, a manual setting unit for setting demand values of cabin air parameters, and a control unit for defining the resulting required adjustments to be made to the various components of the cold and hot loops. The control unit includes a temperature estimating module which generates an estimated value of the outside temperature, either from (a) the measured value of cabin temperature (in stabilized operation of the installation), or (b) a temperature value stored in a sub-memory of the control unit (when the installation is converging towards its stabilized mode).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.