FR3087488B1 - PROCESS FOR EARLY OPENING OF A COLD THERMOSTAT IN AN ENGINE COOLING SYSTEM - Google Patents

PROCESS FOR EARLY OPENING OF A COLD THERMOSTAT IN AN ENGINE COOLING SYSTEM Download PDF

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Publication number
FR3087488B1
FR3087488B1 FR1871275A FR1871275A FR3087488B1 FR 3087488 B1 FR3087488 B1 FR 3087488B1 FR 1871275 A FR1871275 A FR 1871275A FR 1871275 A FR1871275 A FR 1871275A FR 3087488 B1 FR3087488 B1 FR 3087488B1
Authority
FR
France
Prior art keywords
thermostat
temperature
opening
cooling system
tcons
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR1871275A
Other languages
French (fr)
Other versions
FR3087488A1 (en
Inventor
Michel Angeli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSA Automobiles SA
Original Assignee
PSA Automobiles SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PSA Automobiles SA filed Critical PSA Automobiles SA
Priority to FR1871275A priority Critical patent/FR3087488B1/en
Priority to PCT/FR2019/052086 priority patent/WO2020084203A1/en
Priority to CN201980070396.8A priority patent/CN112955637B/en
Priority to EP19786378.0A priority patent/EP3870819B1/en
Publication of FR3087488A1 publication Critical patent/FR3087488A1/en
Application granted granted Critical
Publication of FR3087488B1 publication Critical patent/FR3087488B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00Controlling of coolant flow
    • F01P7/14Controlling of coolant flow the coolant being liquid
    • F01P7/16Controlling of coolant flow the coolant being liquid by thermostatic control
    • F01P7/167Controlling of coolant flow the coolant being liquid by thermostatic control by adjusting the pre-set temperature according to engine parameters, e.g. engine load, engine speed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2070/00Details
    • F01P2070/04Details using electrical heating elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Temperature (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

L'invention concerne un procédé d'ouverture anticipée d'un thermostat piloté froid dans un système de refroidissement par fluide d'un moteur thermique, le thermostat opérant une fermeture et une ouverture au moins partielle d'un circuit d'échange thermique par rapport à un circuit principal du système, le thermostat étant commandé par une commande de régulation (Creg) d'ouverture à partir d'une température en vigueur (Tf) du fluide et une température de consigne (Tcons). Il est établi une commande corrective (Ccor) d'ouverture du thermostat quand un écart entre la température en vigueur (Tf) et la température de consigne (Tcons) est inférieure à un premier seuil (SI) prédéterminé et quand au moins une condition de fonctionnement du moteur ou au moins une condition climatique extérieure a été reconnue par expérience comme entraînant une différence de température (dT) entre les fluides respectifs des circuits d'échange thermique et principal au-dessus d'un seuil d'écart de température entre fluides.The invention relates to a method of early opening of a cold controlled thermostat in a fluid cooling system of a heat engine, the thermostat operating at least partial closing and opening of a heat exchange circuit relative to to a main circuit of the system, the thermostat being controlled by an opening regulation command (Creg) based on a current temperature (Tf) of the fluid and a set point temperature (Tcons). A corrective thermostat opening command (Ccor) is established when a difference between the temperature in effect (Tf) and the setpoint temperature (Tcons) is below a first predetermined threshold (SI) and when at least one engine operation or at least one external climatic condition has been recognized by experience as causing a temperature difference (dT) between the respective fluids of the heat exchange and main circuits above a temperature difference threshold between fluids .

FR1871275A 2018-10-23 2018-10-23 PROCESS FOR EARLY OPENING OF A COLD THERMOSTAT IN AN ENGINE COOLING SYSTEM Expired - Fee Related FR3087488B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR1871275A FR3087488B1 (en) 2018-10-23 2018-10-23 PROCESS FOR EARLY OPENING OF A COLD THERMOSTAT IN AN ENGINE COOLING SYSTEM
PCT/FR2019/052086 WO2020084203A1 (en) 2018-10-23 2019-09-10 Method for early opening of a cold thermostat in an engine cooling system
CN201980070396.8A CN112955637B (en) 2018-10-23 2019-09-10 Method for early opening of cold thermostat in engine cooling system
EP19786378.0A EP3870819B1 (en) 2018-10-23 2019-09-10 Method for early opening of a cold thermostat in an engine cooling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1871275A FR3087488B1 (en) 2018-10-23 2018-10-23 PROCESS FOR EARLY OPENING OF A COLD THERMOSTAT IN AN ENGINE COOLING SYSTEM

Publications (2)

Publication Number Publication Date
FR3087488A1 FR3087488A1 (en) 2020-04-24
FR3087488B1 true FR3087488B1 (en) 2020-12-18

Family

ID=65444250

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1871275A Expired - Fee Related FR3087488B1 (en) 2018-10-23 2018-10-23 PROCESS FOR EARLY OPENING OF A COLD THERMOSTAT IN AN ENGINE COOLING SYSTEM

Country Status (4)

Country Link
EP (1) EP3870819B1 (en)
CN (1) CN112955637B (en)
FR (1) FR3087488B1 (en)
WO (1) WO2020084203A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115031455A (en) * 2022-04-13 2022-09-09 天津大学 Heat recovery control method and device, electronic equipment and storage medium

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3932277B2 (en) * 2002-10-18 2007-06-20 日本サーモスタット株式会社 Control method of electronic control thermostat
DE10337413A1 (en) * 2003-08-14 2005-03-10 Daimler Chrysler Ag Method of regulating the flow of coolant with a heater shut-off valve
FR2896272B1 (en) * 2006-01-19 2012-08-17 Renault Sas METHOD AND DEVICE FOR CONTROLLING THE FIRST OPENING OF A THERMOSTAT REGULATING THE TEMPERATURE OF AN INTERNAL COMBUSTION ENGINE.
FR2929330B1 (en) * 2008-04-01 2010-04-09 Peugeot Citroen Automobiles Sa ENGINE COOLING CIRCUIT.
DE102009042745B4 (en) * 2009-09-25 2024-06-27 Att Automotivethermotech Gmbh Method and device for flexible adaptation of waste heat from internal combustion engines
EP3094841B1 (en) * 2014-01-15 2019-06-05 Renault S.A.S. Thermostat device for motor vehicle cooling system, cooling system fitted with such a thermostat device and method of controlling a heating module
FR3016399B1 (en) * 2014-01-15 2016-01-22 Renault Sas METHOD OF ESTIMATING THE OPENING PROPORTION OF A VALVE EQUIPPED WITH A THERMOSTAT AND COOLING SYSTEM OF A DRIVE MOTOR OF A MOTOR VEHICLE COMPRISING A THERMOSTAT
FR3052185B1 (en) * 2016-06-07 2018-06-15 Peugeot Citroen Automobiles Sa METHOD FOR FILLING A COOLING CIRCUIT WITH A COOLANT FLUID
CN107893697B (en) 2017-11-24 2020-04-07 奇瑞汽车股份有限公司 Electronic thermostat opening control method

Also Published As

Publication number Publication date
WO2020084203A1 (en) 2020-04-30
EP3870819A1 (en) 2021-09-01
FR3087488A1 (en) 2020-04-24
CN112955637A (en) 2021-06-11
EP3870819B1 (en) 2023-03-01
CN112955637B (en) 2024-03-12

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