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SE0400444D0 - Monitoring of engine coolant temperature sensors - Google Patents

Monitoring of engine coolant temperature sensors

Info

Publication number
SE0400444D0
SE0400444D0 SE0400444A SE0400444A SE0400444D0 SE 0400444 D0 SE0400444 D0 SE 0400444D0 SE 0400444 A SE0400444 A SE 0400444A SE 0400444 A SE0400444 A SE 0400444A SE 0400444 D0 SE0400444 D0 SE 0400444D0
Authority
SE
Sweden
Prior art keywords
monitoring
coolant
coolant temperature
temperature
determination
Prior art date
Application number
SE0400444A
Other languages
Swedish (sv)
Other versions
SE526865C2 (en
SE0400444L (en
Inventor
Petter Haraldsson
Original Assignee
Scania Cv Ab
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 Scania Cv Ab filed Critical Scania Cv Ab
Priority to SE0400444A priority Critical patent/SE526865C2/en
Publication of SE0400444D0 publication Critical patent/SE0400444D0/en
Priority to DE102005007324.7A priority patent/DE102005007324B4/en
Publication of SE0400444L publication Critical patent/SE0400444L/en
Publication of SE526865C2 publication Critical patent/SE526865C2/en

Links

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
    • 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
    • F01P7/167—Controlling 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
    • 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
    • F01P1/00—Air cooling
    • 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
    • F01P11/16—Indicating devices; Other safety devices concerning coolant temperature
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B1/00—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B1/00—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values
    • G05B1/11—Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values fluidic
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
    • 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
    • F01P2025/00—Measuring
    • F01P2025/08—Temperature
    • F01P2025/13—Ambient temperature

Landscapes

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

Abstract

Method has the following steps: checking that the temperature indicated by the sensor is above the external air temperature; if true, determination of the amount of heat supplied to the coolant by the engine within a given period and checking that it exceeds a threshold value; if true, determination of a variable representing the ability of the vehicle to cool the coolant and from this determination of a maximum possible coolant temperature and finally; output of a warning signal if this temperature limit is exceeded. - The invention also relates to a corresponding computer program for monitoring a coolant temperature sensor, a control unit for monitoring a coolant temperature sensor and a vehicle equipped with an external temperature sensor and an inventive control unit.
SE0400444A 2004-02-25 2004-02-25 Monitoring of engine coolant temperature sensors SE526865C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE0400444A SE526865C2 (en) 2004-02-25 2004-02-25 Monitoring of engine coolant temperature sensors
DE102005007324.7A DE102005007324B4 (en) 2004-02-25 2005-02-17 Monitoring engine coolant temperature sensors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0400444A SE526865C2 (en) 2004-02-25 2004-02-25 Monitoring of engine coolant temperature sensors

Publications (3)

Publication Number Publication Date
SE0400444D0 true SE0400444D0 (en) 2004-02-25
SE0400444L SE0400444L (en) 2005-08-26
SE526865C2 SE526865C2 (en) 2005-11-15

Family

ID=31989610

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0400444A SE526865C2 (en) 2004-02-25 2004-02-25 Monitoring of engine coolant temperature sensors

Country Status (2)

Country Link
DE (1) DE102005007324B4 (en)
SE (1) SE526865C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007045370A1 (en) * 2007-09-22 2009-04-02 Zf Friedrichshafen Ag Method for determining a performance of a cooling system
US8620516B2 (en) * 2011-02-17 2013-12-31 GM Global Technology Operations LLC System and method for performing engine material temperature sensor diagnostics
US9857263B2 (en) * 2014-07-22 2018-01-02 Ford Global Technologies, Llc Systems and methods for evaporative emissions testing

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE510105C2 (en) * 1995-02-23 1999-04-19 Scania Cv Ab Method and arrangement for controlling an exhaust brake in an internal combustion engine
JP3675108B2 (en) * 1996-06-24 2005-07-27 トヨタ自動車株式会社 Fault diagnosis device for water temperature sensor
US6200021B1 (en) * 1997-11-10 2001-03-13 Toyoto Jidosha Kabushiki Kaisha Abnormality detector apparatus for a coolant apparatus for cooling an engine
JP3629982B2 (en) * 1998-10-27 2005-03-16 日産自動車株式会社 Diagnostic device for coolant temperature sensor
DE19958385A1 (en) * 1999-12-03 2001-06-07 Bosch Gmbh Robert Method to diagnosis faults in refrigerant circuit of internal combustion engine, involves determining and evaluating torque loss of engine
DE19958384A1 (en) * 1999-12-03 2001-06-07 Bosch Gmbh Robert Process for detecting a faulty sensor

Also Published As

Publication number Publication date
SE526865C2 (en) 2005-11-15
DE102005007324A1 (en) 2005-09-08
DE102005007324B4 (en) 2015-01-08
SE0400444L (en) 2005-08-26

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