FR3092870B1 - Procede de diagnostic d’une insuffisance de liquide de refroidissement dans un circuit de refroidissement de moteur thermique - Google Patents

Procede de diagnostic d’une insuffisance de liquide de refroidissement dans un circuit de refroidissement de moteur thermique Download PDF

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Publication number
FR3092870B1
FR3092870B1 FR1901625A FR1901625A FR3092870B1 FR 3092870 B1 FR3092870 B1 FR 3092870B1 FR 1901625 A FR1901625 A FR 1901625A FR 1901625 A FR1901625 A FR 1901625A FR 3092870 B1 FR3092870 B1 FR 3092870B1
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France
Prior art keywords
temperature
diagnosing
insufficient
coolant
thermal engine
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FR1901625A
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English (en)
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FR3092870A1 (fr
Inventor
Michel Angeli
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Stellantis Auto Sas Fr
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PSA Automobiles SA
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Publication date
Application filed by PSA Automobiles SA filed Critical PSA Automobiles SA
Priority to FR1901625A priority Critical patent/FR3092870B1/fr
Publication of FR3092870A1 publication Critical patent/FR3092870A1/fr
Application granted granted Critical
Publication of FR3092870B1 publication Critical patent/FR3092870B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F01P11/18—Indicating devices; Other safety devices concerning coolant pressure, coolant flow, or liquid-coolant level
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/14—Controlling of coolant flow the coolant being liquid
    • F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2023/00—Signal processing; Details thereof

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

La présente invention concerne un procédé de diagnostic d’une insuffisance de liquide de refroidissement dans un circuit de refroidissement de moteur thermique durant le fonctionnement de ce moteur dans lequel, a) on initialise une température maximum de liquide de refroidissement, une température minimum de liquide de refroidissement, b) on mesure la température de liquide de refroidissement (Tcal), caractérisé en ce que c) on actualise la température maximum et la température minimum en fonction de la température de liquide de refroidissement (Tcal), d) on calcule la différence entre la température maximum et la température minimum, on réitère au cours du temps de fonctionnement les étapes b) à d) et si cette différence a été supérieure à un seuil d’écart de température déterminé pendant une durée de fonctionnement déterminée, alors il est diagnostiqué une insuffisance de liquide de refroidissement dans le circuit de refroidissement. Figure 4
FR1901625A 2019-02-19 2019-02-19 Procede de diagnostic d’une insuffisance de liquide de refroidissement dans un circuit de refroidissement de moteur thermique Active FR3092870B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1901625A FR3092870B1 (fr) 2019-02-19 2019-02-19 Procede de diagnostic d’une insuffisance de liquide de refroidissement dans un circuit de refroidissement de moteur thermique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1901625 2019-02-19
FR1901625A FR3092870B1 (fr) 2019-02-19 2019-02-19 Procede de diagnostic d’une insuffisance de liquide de refroidissement dans un circuit de refroidissement de moteur thermique

Publications (2)

Publication Number Publication Date
FR3092870A1 FR3092870A1 (fr) 2020-08-21
FR3092870B1 true FR3092870B1 (fr) 2021-03-12

Family

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FR1901625A Active FR3092870B1 (fr) 2019-02-19 2019-02-19 Procede de diagnostic d’une insuffisance de liquide de refroidissement dans un circuit de refroidissement de moteur thermique

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FR (1) FR3092870B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112682161A (zh) * 2020-12-25 2021-04-20 潍柴动力股份有限公司 发动机冷却液液位降低检测方法、装置及电控设备、介质

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4661927B2 (ja) * 2008-09-17 2011-03-30 トヨタ自動車株式会社 エンジンの冷却水量判定装置
US8875561B2 (en) * 2011-09-15 2014-11-04 General Electric Company Systems and methods for diagnosing an engine
KR101406504B1 (ko) 2013-05-15 2014-06-13 기아자동차주식회사 차량의 냉각수부족 진단방법 및 시스템
US9790842B2 (en) * 2015-02-09 2017-10-17 Ford Global Technologies, Llc Cooling system diagnostic method
FR3052185B1 (fr) * 2016-06-07 2018-06-15 Peugeot Citroen Automobiles Sa Procede de remplissage en fluide caloporteur d’un circuit de refroidissement

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Publication number Publication date
FR3092870A1 (fr) 2020-08-21

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