Global Patent Index - EP 3658832 B1

EP 3658832 B1 20221102 - METHOD FOR MANAGING AN AIR CONDITIONING CIRCUIT OF A MOTOR VEHICLE

Title (en)

METHOD FOR MANAGING AN AIR CONDITIONING CIRCUIT OF A MOTOR VEHICLE

Title (de)

VERFAHREN ZUR VERWALTUNG EINER KLIMAANLAGE FÜR EIN FAHRZEUG

Title (fr)

PROCEDE DE GESTION D'UN CIRCUIT DE CLIMATISATION DE VEHICULE AUTOMOBILE

Publication

EP 3658832 B1 20221102 (FR)

Application

EP 18755870 A 20180726

Priority

  • FR 1757227 A 20170728
  • FR 2018051922 W 20180726

Abstract (en)

[origin: WO2019020952A1] The present invention relates to a method for managing an air-conditioning circuit (1) within which a refrigerant fluid circulates in a cooling mode, the refrigerant fluid flowing successively through: a compressor (3); a condenser (5); and expansion device (7); and an evaporator (9), said air-conditioning circuit (1) including a central control unit (10) that is capable of controlling the opening of the expansion device (7), said method including: a step of calculating the opening Cestim of the expansion device (7) on the basis of measurements of operating parameters of the air-conditioning circuit (1) and of determining a setpoint overheating SHcomp_in_sp, SHcomp_in_sp being comprised between a minimum overheating SHcomp_in_sp_min and a maximum overheating SHcomp_in_sp_max; a step of opening the expansion device (7) according to Cestim and of controlling the overheating SHcomp_in by varying the opening of the expansion device (7) so as to reach the setpoint overheating SHcomp_in_sp and maintaining SHcomp_in between SHcomp_in_sp_min and SHcomp_in_sp_max.

IPC 8 full level

F25B 40/02 (2006.01); F25B 40/06 (2006.01); F25B 49/02 (2006.01)

CPC (source: EP)

F25B 40/02 (2013.01); F25B 40/06 (2013.01); F25B 49/02 (2013.01); F25B 49/022 (2013.01); F25B 2600/21 (2013.01); F25B 2600/2513 (2013.01); F25B 2700/1931 (2013.01); F25B 2700/1933 (2013.01); F25B 2700/2106 (2013.01); F25B 2700/21151 (2013.01); F25B 2700/21173 (2013.01)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2019020952 A1 20190131; CN 111133262 A 20200508; CN 111133262 B 20220405; EP 3658832 A1 20200603; EP 3658832 B1 20221102; FR 3069626 A1 20190201; FR 3069626 B1 20191227

DOCDB simple family (application)

FR 2018051922 W 20180726; CN 201880061930 A 20180726; EP 18755870 A 20180726; FR 1757227 A 20170728