WO2022163055A1 - Dispositif de régulation de température - Google Patents

Dispositif de régulation de température Download PDF

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Publication number
WO2022163055A1
WO2022163055A1 PCT/JP2021/040899 JP2021040899W WO2022163055A1 WO 2022163055 A1 WO2022163055 A1 WO 2022163055A1 JP 2021040899 W JP2021040899 W JP 2021040899W WO 2022163055 A1 WO2022163055 A1 WO 2022163055A1
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WIPO (PCT)
Prior art keywords
temperature
oil
cooling water
oil cooler
control device
Prior art date
Application number
PCT/JP2021/040899
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English (en)
Japanese (ja)
Inventor
太郎 雨貝
健志 南家
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日本電産株式会社
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Priority to CN202180092040.1A priority Critical patent/CN116888351A/zh
Publication of WO2022163055A1 publication Critical patent/WO2022163055A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • 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

Definitions

  • the present invention relates to a temperature control device.
  • Patent Document 1 describes a configuration in which oil is circulated in a case that houses a motor, and a cooling water circuit cools the oil, thereby cooling the motor via the oil.
  • the temperature control device has oil and cooling water temperature sensors, and controls the output of the pump that pumps the oil and cooling water based on the measurement results of these temperature sensors.
  • the required specifications differ between such an oil temperature sensor and a cooling water temperature sensor. Therefore, in the conventional temperature control device, there is a problem that it is necessary to prepare a plurality of types of temperature sensors, which increases the manufacturing cost of the temperature control device.
  • One of the objects of one aspect of the present invention is to provide a temperature control device that reduces the overall cost by reducing the number of types of temperature sensors.
  • One aspect of the temperature control device of the present invention includes a motor that drives a vehicle, an oil circuit in which oil flows, a cooling water circuit in which cooling water flows, and an oil that exchanges heat between the oil and the cooling water.
  • a cooler a first temperature measurement unit for measuring the temperature of the cooling water flowing into the oil cooler, a second temperature measurement unit for measuring the temperature of the cooling water flowing out from the oil cooler, and the first temperature measurement and a calculation unit connected to the second temperature measurement unit.
  • the calculating unit measures the temperature of the cooling water measured by the first temperature measuring unit and the temperature of the cooling water measured by the second temperature measuring unit, based on the difference between the temperature of the cooling water measured by the second temperature measuring unit. Calculate the temperature of the oil.
  • a temperature control device that reduces the overall cost by reducing the number of types of temperature sensors.
  • FIG. 1 is a schematic diagram of a temperature control device of one embodiment.
  • FIG. 2 is a schematic diagram of a temperature control device of a modification.
  • a temperature control device according to an embodiment of the present invention will be described below with reference to the drawings. Note that, in the drawings below, in order to make each configuration easier to understand, the actual structure and the scale and number of each structure may be different.
  • FIG. 1 is a schematic diagram of a temperature control device 1 of one embodiment.
  • the temperature control device 1 is mounted in a vehicle 80 such as an electric vehicle (EV), a hybrid vehicle (HEV), a plug-in hybrid vehicle (PHV), or the like, which uses a motor as a power source.
  • a vehicle 80 such as an electric vehicle (EV), a hybrid vehicle (HEV), a plug-in hybrid vehicle (PHV), or the like, which uses a motor as a power source.
  • EV electric vehicle
  • HEV hybrid vehicle
  • PGV plug-in hybrid vehicle
  • the temperature control device 1 includes a motor 2, a power control device 4, an inverter 3, an oil cooler 5, a chiller 7, a first temperature measuring section 8, a second temperature measuring section 9, an oil circuit 90, It includes a cooling water circuit 10 , an air-conditioning refrigerant circuit 50 , and a controller 60 . Oil flows through the oil circuit 90 . Cooling water flows through the cooling water circuit 10 . An air-conditioning refrigerant that warms the air in the interior space of the vehicle 80 flows through the air-conditioning refrigerant circuit 50 .
  • the motor 2 is a motor-generator that has both a function as an electric motor and a function as a generator.
  • the motor 2 is connected to wheels of the vehicle 80 via a speed reduction mechanism (not shown).
  • the motor 2 is driven by alternating current supplied from the inverter 3 to rotate the wheels.
  • the motor 2 thereby drives the vehicle 80 .
  • the motor 2 regenerates the rotation of the wheels to generate alternating current.
  • the generated electric power is stored in a battery (not shown) through the inverter 3 .
  • the inverter 3 converts the DC current of the battery into AC current. Inverter 3 is electrically connected to motor 2 . The AC current converted by the inverter 3 is supplied to the motor 2 . That is, the inverter 3 converts the DC current supplied from the battery into AC current and supplies the AC current to the motor 2 .
  • the power control device 4 is also called an IPS (Integrated Power System).
  • the power control device 4 has an AC/DC conversion circuit and a DC/DC conversion circuit.
  • the AC/DC conversion circuit converts alternating current supplied from an external power source into direct current and supplies the direct current to the battery. That is, the power control device 4 converts alternating current supplied from the external power source into direct current in the AC/DC conversion circuit and supplies the direct current to the battery.
  • the DC/DC conversion circuit converts the DC current supplied from the battery into DC currents with different voltages, and supplies the DC currents to the first pump 41 , the second pump 42 , and the third pump 43 .
  • the oil cooler 5 is arranged in the path of the oil circuit 90 and the cooling water circuit 10 .
  • the oil cooler 5 is a heat exchanger that exchanges heat between the oil in the oil circuit 90 and the cooling water in the cooling water circuit 10 .
  • oil and cooling water flow in the same direction. Therefore, the temperature of the oil flowing out of the oil cooler 5 and the temperature of the cooling water flowing out of the oil cooler 5 are substantially equal.
  • the chiller 7 is arranged in the path of the cooling water circuit 10 and the air conditioning refrigerant circuit 50 .
  • the chiller 7 is a heat exchanger that exchanges heat between the cooling water in the cooling water circuit 10 and the air conditioning refrigerant in the air conditioning refrigerant circuit 50 .
  • the oil circuit 90 has a loop-shaped third circulation path 99 and a third pump 43 .
  • the third circulation path 99 is an oil path.
  • a third circulation path 99 passes through the motor 2 and the oil cooler 5 .
  • the third pump 43 pumps oil in the third circulation path 99 .
  • path means a path through which a fluid passes, and not only a “flow path” that forms a steady fluid flow in one direction, but also a fluid that temporarily stays. It is a concept that also includes pathways and fluid dripping pathways.
  • the oil in the oil circuit 90 circulates through the third circulation path 99 in the order of the third pump 43, the motor 2, and the oil cooler 5, and returns to the third pump 43 again.
  • the oil in the oil circuit 90 loses heat when passing through the oil cooler 5 and is cooled. Also, the oil in the oil circuit 90 takes heat from the motor 2 when passing through the motor 2 . That is, the oil cooler 5 cools the motor 2 via oil.
  • the third pump 43 is connected to the control section 60 via a signal line.
  • the third pump 43 is turned ON/OFF and its output is adjusted based on a command from the control unit 60 .
  • the flow rate of the oil flowing through the third circulation path 99 can be increased, and the cooling efficiency of the motor 2 can be increased.
  • the cooling water circuit 10 has a loop-shaped second circulation path 19 and a second pump 42 .
  • the second circulation path 19 is a cooling water path.
  • a second circulation path 19 passes through the power controller 4 , the inverter 3 , the oil cooler 5 and the chiller 7 .
  • the second circulation path 19 may pass through a radiator (not shown) or a battery (not shown).
  • the second pump 42 pumps the cooling water in the second circulation path 19 .
  • the cooling water in the cooling water circuit 10 circulates through the second circulation path 19 in the order of the second pump 42, the power control device 4, the inverter 3, the oil cooler 5, and the chiller 7, and returns to the second pump 42 again.
  • the cooling water in the cooling water circuit 10 receives heat from the oil in the oil circuit 90 when passing through the oil cooler 5 and cools the oil. In addition, the cooling water of the cooling water circuit 10 takes heat from the power control device 4 and the inverter 3 when passing through them, and cools them. Further, the cooling water in the cooling water circuit 10 transfers waste heat received from the oil and waste heat received from the power control device 4 and the inverter 3 to the air conditioning refrigerant in the air conditioning refrigerant circuit 50 via the chiller 7. .
  • the second pump 42 is connected to the control section 60 via a signal line.
  • the ON/OFF and output of the second pump 42 are adjusted based on the command from the control unit 60 .
  • the flow rate of cooling water flowing through the second circulation path 19 can be increased, and the oil cooling efficiency in the power control device 4 , the inverter 3 and the oil cooler 5 can be increased.
  • the air-conditioning refrigerant circuit 50 is a circuit independent of the cooling water circuit 10, and a different refrigerant (air-conditioning refrigerant) from the cooling water circuit 10 flows.
  • the air-conditioning refrigerant circuit 50 has a loop-shaped first circulation path 59 and a first pump 41 .
  • the first circulation path 59 is a path for air conditioning refrigerant.
  • the first circulation path 59 passes through the chiller 7 and the air conditioner 51 .
  • the first pump 41 pressure-feeds the air-conditioning refrigerant in the first circulation path 59 .
  • the air-conditioning refrigerant in the air-conditioning refrigerant circuit 50 circulates through the first circulation path 59 in the order of the first pump 41, the air conditioner 51, and the chiller 7, and returns to the first pump 41 again.
  • the air-conditioning refrigerant circuit 50 transfers heat received from the cooling water of the cooling water circuit 10 through the chiller 7 to the air-conditioning equipment 51 through the air-conditioning refrigerant.
  • the air conditioner 51 adjusts the temperature of the living space of the vehicle 80 using the heat transferred to the air-conditioning refrigerant.
  • the temperature control device 1 transfers the waste heat of the motor 2 to the oil in the oil circuit 90 and the cooling water in the cooling water circuit 10 via the oil cooler 5 .
  • the temperature control device 1 transfers the waste heat transferred to the cooling water from the power control device 4, the inverter 3, and the battery via the chiller 7 to the air-conditioning refrigerant. It is moved to the circuit 50 and used for the air conditioner. Therefore, according to the present embodiment, waste heat from the motor 2 , the power control device 4 , and the inverter 3 can be used to heat the interior space of the vehicle 80 .
  • a first temperature measurement unit 8 and a second temperature measurement unit 9 measure the temperature of the cooling water in the cooling water circuit 10 .
  • a first temperature measurement unit 8 measures the temperature of the cooling water flowing into the oil cooler 5 .
  • the second temperature measuring section 9 measures the temperature of the cooling water flowing out from the oil cooler 5 .
  • the first temperature measurement unit 8 and the second temperature measurement unit 9 are connected to the control unit 60 by signal lines.
  • the first temperature measurement unit 8 has a first temperature sensor 8a that actually measures the cooling water in the cooling water circuit 10.
  • the first temperature sensor 8 a is cooling water in the second circulation path 19 of the cooling water circuit, and is arranged between the power control device 4 and the inverter 3 serving as heat sources, and the oil cooler 5 . As a result, the temperature of the cooling water on the downstream side of the inverter 3 and the upstream side of the oil cooler 5 can be directly measured.
  • the second temperature measurement unit 9 has a second temperature sensor 9a that actually measures the cooling water in the cooling water circuit 10.
  • the second temperature sensor 9 a directly measures the temperature of the cooling water in the second circulation path 19 of the cooling water circuit, downstream of the oil cooler 5 and upstream of the chiller 7 .
  • the control unit 60 has a computing unit 61 . That is, the temperature control device 1 includes a calculation section 61 .
  • the calculation unit 61 is connected to the first temperature measurement unit 8 , the second temperature measurement unit 9 , the second pump 42 and the third pump 43 .
  • the calculation unit 61 calculates the amount of heat transferred from the oil circuit 90 to the cooling water circuit 10 in the oil cooler 5 based on the temperature rise of the oil cooler 5 before and after the passage of the oil cooler 5 .
  • the calculation unit 61 calculates the temperature of the oil flowing into the oil cooler 5 in the oil circuit 90 based on the amount of heat transferred from the oil circuit 90 to the cooling water circuit 10 . That is, the calculation unit 61 measures the oil flowing into the oil cooler 5 based on the difference between the temperature of the cooling water measured by the first temperature measurement unit 8 and the temperature of the cooling water measured by the second temperature measurement unit 9. Calculate the temperature of
  • the calculation unit 61 grasps the flow rate of the cooling water flowing through the cooling water circuit 10 from the power consumption of the second pump 42 . Similarly, the calculation unit 61 obtains the flow rate of oil flowing through the oil circuit 90 from the power consumption of the third pump 43 . The calculation unit 61 refers to the flow rates of the cooling water and the oil in calculating the oil temperature.
  • each parameter is defined as follows.
  • the specific heat of the cooling water is Cllc
  • the specific heat of the oil is Coil.
  • the unit of specific heat is [J/(kg ⁇ °C)].
  • the flow rate of cooling water flowing into the oil cooler 5 is assumed to be Fllc
  • the flow rate of the cooling water flowing into the oil cooler 5 is assumed to be Foil .
  • the unit of flow rate is [m 3 /s].
  • the density of cooling water is Dllc
  • the density of oil is Doil.
  • the unit of density is [kg/m 3 ].
  • the temperature of the cooling water measured by the first temperature measurement unit 8 is T llc in
  • the temperature of the cooling water measured by the second temperature measurement unit 9 is T llc out
  • the temperature of the oil flowing into the oil cooler 5 is T oil in
  • the temperature of the oil flowing out of the oil cooler 5 is T oil out .
  • the unit of temperature is [°C].
  • Q be the amount of heat transferred between the oil and the cooling water in the oil cooler 5 .
  • the unit of heat quantity is [W].
  • the amount of heat Q is the amount of heat absorbed by the cooling water from the oil in the oil cooler 5 . Therefore, the quantity of heat Q is represented by the following Equation 1.
  • the heat quantity Q is the amount of heat released from the oil to the cooling water in the oil cooler 5 . Therefore, the amount of heat Q is represented by Equation 2 below.
  • Equation 3 it is assumed that the temperature Tllcout of the cooling water that has passed through the oil cooler 5 and the temperature Toilout of the oil that has passed through the oil cooler 5 are equal.
  • the oil cooler 5 has sufficiently high heat exchange efficiency so that the assumption of Equation 3 holds true when performing steady heat exchange.
  • T oil in The temperature of the oil flowing into the oil cooler 5, T oil in is computed. That is, the calculation unit 61 calculates T oil in , which is the temperature of the oil flowing into the oil cooler 5, from Equation 4 below.
  • Equation 4 is an example.
  • Operation unit 61 may measure the temperature of the oil flowing out to oil cooler 5 by another method depending on the configuration of oil circuit 90 and cooling water circuit 10 .
  • the assumption of Equation 3 holds true only when oil and cooling water flow in the same direction in the oil cooler 5 . Therefore, when the oil and the cooling water flow in opposite directions in the oil cooler 5, the calculation unit 61 calculates the temperature of the oil using a calculation formula different from the formula (4).
  • the control unit 60 adjusts the output of the third pump 43 based on the calculation result of the oil temperature in the calculation unit 61 . More specifically, when the temperature of the oil is relatively high, the control unit 60 increases the output of the third pump 43 to promote cooling of the motor 2 via the oil. Furthermore, the control unit 60 may adjust the output of the second pump 42 based on the calculation result of the oil temperature in the calculation unit 61 . More specifically, the control unit 60 may increase the output of the second pump 42 to promote cooling of the oil in the oil cooler 5 when the temperature of the oil is relatively high.
  • the oil temperature can be calculated without disposing a temperature sensor in the oil circuit 90 . Therefore, when an oil sensor for measuring the temperature of the oil is arranged in the oil circuit 90, an expensive temperature sensor having high resistance to oil and high heat resistance to the temperature of the oil is required. According to this embodiment, since such an oil temperature sensor is not required, the temperature control device 1 can be manufactured at low cost.
  • the temperature control device 1 of the present embodiment may have a motor temperature measurement unit 6 that measures the temperature of the motor 2, as indicated by the imaginary line (two-dot chain line) in FIG.
  • the motor temperature measuring section 6 is connected to the computing section 61 .
  • the assumption in formula 3 above does not hold when the temperature difference between the oil flowing into the oil cooler 5 and the cooling water flowing into the oil cooler 5 becomes too large. For example, when the temperature of the motor 2 rises sharply, the oil temperature rises sharply accordingly. In this case, the temperature difference between the oil flowing into the oil cooler 5 and the cooling water increases, and heat exchange is not completed to the extent that the temperatures of the oil and the cooling water in the flow path of the oil cooler 5 become equal. As a result, the temperatures of the cooling water flowing out of the oil cooler 5 and the temperature of the oil are not equal, and the assumption of Equation 3 does not hold. That is, as the temperature difference between the oil and the cooling water increases, the difference between the calculation result of the calculation unit 61 and the actual oil temperature increases.
  • the calculation unit 61 adds a correction value to the calculation result of the temperature of the oil flowing into the oil cooler 5 based on the measurement result of the temperature of the motor 2 in the motor temperature measurement unit 6 .
  • the calculation unit 61 can add a value proportional to the slope of the temperature rise of the motor 2 to the calculation result calculated by Equation 4 as the correction value.
  • the calculation unit 61 can correct the difference between the actual oil temperature and the calculation result, and can calculate the oil temperature more accurately.
  • FIG. 2 is a schematic diagram of a modified temperature control device 101 that can be employed in the above embodiment.
  • symbol is attached
  • the temperature control device 101 of this modified example differs from the above-described embodiment mainly in the configurations of the first temperature measurement unit 108 and the second temperature measurement unit 109 .
  • the first temperature measurement unit 108 has a first temperature sensor 108a and a first estimation unit 108b.
  • the first temperature sensor 108 a measures the temperature of the cooling water in the second circulation path 19 downstream of the second pump 42 and upstream of the power control device 4 . That is, the first temperature sensor 108 a actually measures the temperature of the coolant on the upstream side of the oil cooler 5 .
  • the first estimator 108b estimates the temperature of the cooling water flowing into the oil cooler 5 based on the measurement result of the first temperature sensor 108a.
  • the power control device 4 and the inverter 3 are set with an upper limit value for the inflow temperature (inflow limit temperature).
  • the first temperature sensor 108 a is arranged upstream just before the power control device 4 and the inverter 3 and directly measures the temperature flowing into the power control device 4 and the inverter 3 .
  • the power control device 4 and the inverter 3 which serve as heat sources, are arranged. That is, the first temperature sensor 108a is positioned upstream from the power controller or inverter. Therefore, the cooling water whose temperature is measured by the first temperature sensor 108 a is heated by the power control device 4 and the inverter 3 before flowing into the oil cooler 5 .
  • the first estimator 108b estimates the temperature of the power control device 4 and the inverter 3 according to the drive status of the motor 2. Furthermore, the first estimator 108 b calculates the amount of heat transferred from the power control device 4 and the inverter 3 to the cooling water based on the estimated temperatures of the power control device 4 and the inverter 3 . Next, the first estimator 108b estimates the temperature of the cooling water flowing into the oil cooler 5 based on the amount of heat transferred to the cooling water. The estimated value estimated by the first estimating unit 108b is used for calculation in the calculating unit 61 as the measurement result of the first temperature measuring unit 108 . That is, the first estimator 108b of this modified example estimates the temperature change between the first temperature sensor 108a and the oil cooler 5, estimates the temperature of the cooling water flowing into the oil cooler 5, and outputs the measured result. .
  • the second temperature measurement unit 109 has a second temperature sensor 109a and a second estimation unit 109b.
  • the second temperature sensor 109 a measures the temperature of the cooling water in the second circulation path 19 downstream of the oil cooler 5 and upstream of the chiller 7 . That is, the second temperature sensor 109a actually measures the temperature of the cooling water on the downstream side of the oil cooler 5 .
  • the second estimator 109b estimates the temperature of the cooling water flowing out from the oil cooler 5 based on the measurement result of the second temperature sensor 109a.
  • the second estimator 109b of this modified example estimates the oil temperature measured by the second temperature sensor 109a as the temperature of the oil flowing out of the oil cooler 5 .
  • the estimated value estimated by the second estimating unit 109b is used for calculation in the calculating unit 61 as the result of measurement by the second temperature measuring unit 109.
  • the second estimator 109b of this modified example estimates the temperature of the cooling water flowing out of the oil cooler 5 based on the temperature change between the oil cooler 5 and the second temperature sensor 109a, and outputs it as a measurement result. Note that when a heat source or cooling element is arranged between the oil cooler 5 and the second temperature sensor 109a, the second estimator 109b calculates the oil temperature measured by the second temperature sensor 109a and the heat source or cooling element. The temperature of the oil flowing out from the oil cooler 5 is estimated based on the temperature.
  • the control unit 60 controls the oil cooler 5 based on the difference between the temperature of the cooling water measured by the first temperature measurement unit 108 and the temperature of the cooling water measured by the second temperature measurement unit 109 in the calculation unit 61. Calculate the temperature of the incoming oil.
  • the control unit 60 also adjusts the output of the second pump 42 and the third pump 43 based on the calculation result of the oil temperature in the calculation unit 61 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
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  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne un dispositif de régulation de température qui coupe les coûts globaux en réduisant le nombre de types de capteurs de température.　Un aspect de ce dispositif de régulation de température (1) comprend : un moteur (2) qui entraîne un véhicule (80) ; un circuit d'huile (90) à travers lequel s'écoule l'huile ; un circuit d'eau de refroidissement (10) à travers lequel s'écoule de l'eau de refroidissement ; un dispositif de refroidissement d'huile (5) qui effectue un échange thermique entre l'huile et l'eau de refroidissement ; une première unité de mesure de température (8) qui mesure la température de l'eau de refroidissement s'écoulant dans le dispositif de refroidissement d'huile ; une deuxième unité de mesure de température (9) qui mesure la température de l'eau de refroidissement s'écoulant hors du dispositif de refroidissement d'huile ; et une unité de calcul (61) qui se connecte à la première unité de mesure de température et à la deuxième unité de mesure de température. L'unité de calcul calcule la température de l'huile s'écoulant dans le dispositif de refroidissement d'huile sur la base d'une différence entre la température de l'eau de refroidissement mesurée par la première unité de mesure de température et la température de l'eau de refroidissement mesurée par la deuxième unité de mesure de température.
PCT/JP2021/040899 2021-01-29 2021-11-06 Dispositif de régulation de température WO2022163055A1 (fr)

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JP2021013127 2021-01-29

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7418666B1 (ja) 2023-02-08 2024-01-19 三菱電機株式会社 冷却システム、及び冷却制御方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004146240A (ja) * 2002-10-25 2004-05-20 Nissan Motor Co Ltd 燃料電池システム
JP2012513654A (ja) * 2008-12-22 2012-06-14 ルノー・エス・アー・エス 自動車の発熱部材を冷却する装置及び方法
JP2014054897A (ja) * 2012-09-12 2014-03-27 Panasonic Corp 車両用ヒートポンプ装置
JP2017175844A (ja) * 2016-03-25 2017-09-28 本田技研工業株式会社 冷媒の温度推定装置及び回転電機の温度推定装置
WO2019197858A1 (fr) * 2018-04-10 2019-10-17 日産自動車株式会社 Procédé de refroidissement et dispositif de refroidissement de moteur électrique

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004146240A (ja) * 2002-10-25 2004-05-20 Nissan Motor Co Ltd 燃料電池システム
JP2012513654A (ja) * 2008-12-22 2012-06-14 ルノー・エス・アー・エス 自動車の発熱部材を冷却する装置及び方法
JP2014054897A (ja) * 2012-09-12 2014-03-27 Panasonic Corp 車両用ヒートポンプ装置
JP2017175844A (ja) * 2016-03-25 2017-09-28 本田技研工業株式会社 冷媒の温度推定装置及び回転電機の温度推定装置
WO2019197858A1 (fr) * 2018-04-10 2019-10-17 日産自動車株式会社 Procédé de refroidissement et dispositif de refroidissement de moteur électrique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7418666B1 (ja) 2023-02-08 2024-01-19 三菱電機株式会社 冷却システム、及び冷却制御方法

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