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1. WO2004005059 - AIR-CONDITIONING UNIT EQUIPPED WITH AN ELECTRONIC CONTROL DEVICE

Publication Number WO/2004/005059
Publication Date 15.01.2004
International Application No. PCT/FR2003/001987
International Filing Date 27.06.2003
IPC
B60H 1/32 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
1Heating, cooling or ventilating devices
32Cooling devices
CPC
B60H 1/3208
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
1Heating, cooling or ventilating ; [HVAC]; devices
32Cooling devices
3204using compression
3205Control means therefor
3208Vehicle drive related control of the compressor drive means, e.g. for fuel saving purposes
B60H 1/3216
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
1Heating, cooling or ventilating ; [HVAC]; devices
32Cooling devices
3204using compression
3205Control means therefor
3216for improving a change in operation duty of a compressor in a vehicle
Applicants
  • VALEO CLIMATISATION [FR]/[FR] (AllExceptUS)
  • BEN YAHIA, Mohamed [TN]/[FR] (UsOnly)
  • LIU, Jin Ming [FR]/[FR] (UsOnly)
  • THUEZ, Jean-Luc [FR]/[FR] (UsOnly)
Inventors
  • BEN YAHIA, Mohamed
  • LIU, Jin Ming
  • THUEZ, Jean-Luc
Agents
  • LEVEILLE, Christphe
Priority Data
02-0826702.07.2002FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) AIR-CONDITIONING UNIT EQUIPPED WITH AN ELECTRONIC CONTROL DEVICE
(FR) INSTALLATION DE CLIMATISATION MUNIE D’UN DISPOSITIF ELECTRONIQUE DE CONTROLE
Abstract
(EN)
The invention concerns a motor vehicle air-conditioning unit, equipped with an injection calculator, and an electronic control device. The unit comprises a first metering member for estimating high pressure (P1) and a second metering member for estimating low pressure (P2). It further comprises storage means forming tables with three inputs. Said table is filled on the basis of prior data on the relationships between coefficients (a, b, c) and three measurable quantities related to the operating conditions of the air-conditioning circuit (N, Text, Vp), and instantly supplies the value of said coefficients to the electronic control device. The electronic control device uses the solution of an equation relating the power absorbed by the compressor to the values measured by the first and second metering members, said equation being obtained from the coefficients supplied by the table. The unit uses said equation to regulate the air-conditioning circuit.
(FR)
L’invention propose une installation de climatisation pour véhicule à moteur, munie d’un calculateur d’injection, et d’un dispositif électronique de contrôle. L’installation comprend un premier organe de mesure pour estimer la haute pression (P1) et un deuxième organe de mesure pour estimer la basse pression (P2). Elle comprend également des moyens de mémoire formant tables à trois entrées. Cette table est remplie en fonction de données préalables sur les relations entre des coefficients (a, b, c) et trois grandeurs liées au fonctionnement du circuit de climatisation (N, Text, Vp), et fournit instantanément la valeur desdits coefficients au dispositif électronique de contrôle. Le dispositif électronique de contrôle met en œuvre la résolution d’une équation liant la puissance absorbée par le compresseur aux valeurs mesurées par le premier et le deuxième organe de mesure, ladite équation étant obtenue à partir des coefficients fournis par la table. L’installation utilise cette équation pour réguler le circuit de climatisation.
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