FR3127283B1 - Method for measuring the temperature of an inverter for electric motors - Google Patents

Method for measuring the temperature of an inverter for electric motors Download PDF

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Publication number
FR3127283B1
FR3127283B1 FR2109863A FR2109863A FR3127283B1 FR 3127283 B1 FR3127283 B1 FR 3127283B1 FR 2109863 A FR2109863 A FR 2109863A FR 2109863 A FR2109863 A FR 2109863A FR 3127283 B1 FR3127283 B1 FR 3127283B1
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France
Prior art keywords
measuring
temperature
inverter
drain
transistor
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.)
Active
Application number
FR2109863A
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French (fr)
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FR3127283A1 (en
Inventor
Nicolas Martinho
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.)
Valeo Systemes de Controle Moteur SAS
Original Assignee
Valeo Systemes de Controle Moteur SAS
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Publication date
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Priority to FR2109863A priority Critical patent/FR3127283B1/en
Publication of FR3127283A1 publication Critical patent/FR3127283A1/en
Application granted granted Critical
Publication of FR3127283B1 publication Critical patent/FR3127283B1/en
Active legal-status Critical Current
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K2205/00—Application of thermometers in motors, e.g. of a vehicle
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K2217/00—Temperature measurement using electric or magnetic components already present in the system to be measured

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Inverter Devices (AREA)

Abstract

L’invention concerne un procédé de mesure de la température d’un onduleur (1) destiné à alimenter un moteur électrique (4), l’onduleur (1) comprenant au moins un transistor (2) du type MOS comportant une source (S), une grille (G) et un drain (D). Le procédé comprend : une étape de mesure d’une tension VDS entre le drain et la source et de mesure d’un courant de drain IDon lorsque le courant traverse le transistor du drain vers la source suivant un sens conventionnel, une étape de calcul d’une résistance RDS à partir de la tension VDS et du courant de drain IDon, etune étape de détermination d’une première température T1 du transistor (2) à partir de la résistance RDS et d’une première loi définissant des valeurs de température T1 en fonction de valeurs de résistance RDS. Figure de l’abrégé : Fig. 1The invention relates to a method for measuring the temperature of an inverter (1) intended to supply an electric motor (4), the inverter (1) comprising at least one transistor (2) of the MOS type comprising a source (S ), a gate (G) and a drain (D). The method includes: a step of measuring a voltage VDS between the drain and the source and measuring a drain current IDon when the current flows through the transistor from the drain to the source in a conventional direction, a step of calculating d 'a resistor RDS from the voltage VDS and the drain current IDon, anda step of determining a first temperature T1 of the transistor (2) from the resistor RDS and a first law defining temperature values T1 depending on RDS resistor values. Abstract Figure: Fig. 1

FR2109863A 2021-09-20 2021-09-20 Method for measuring the temperature of an inverter for electric motors Active FR3127283B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2109863A FR3127283B1 (en) 2021-09-20 2021-09-20 Method for measuring the temperature of an inverter for electric motors

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2109863A FR3127283B1 (en) 2021-09-20 2021-09-20 Method for measuring the temperature of an inverter for electric motors
FR2109863 2021-09-20

Publications (2)

Publication Number Publication Date
FR3127283A1 FR3127283A1 (en) 2023-03-24
FR3127283B1 true FR3127283B1 (en) 2023-08-18

Family

ID=78049467

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2109863A Active FR3127283B1 (en) 2021-09-20 2021-09-20 Method for measuring the temperature of an inverter for electric motors

Country Status (1)

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FR (1) FR3127283B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5037368B2 (en) * 2008-01-11 2012-09-26 アルパイン株式会社 Temperature detection apparatus and method, and circuit
DE102014100122B3 (en) * 2014-01-08 2015-04-16 Zf Lenksysteme Gmbh Determination of the junction temperature of a fet by the body diode
DE112016007127T5 (en) * 2016-08-08 2019-08-22 Power Integrations, Inc. INTEGRATED CIRCUIT FOR FAST TEMPERATURE PERCEPTION OF SEMICONDUCTOR SWITCHING DEVICE

Also Published As

Publication number Publication date
FR3127283A1 (en) 2023-03-24

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