WO2016208550A1 - 車両用熱管理装置 - Google Patents

車両用熱管理装置 Download PDF

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Publication number
WO2016208550A1
WO2016208550A1 PCT/JP2016/068317 JP2016068317W WO2016208550A1 WO 2016208550 A1 WO2016208550 A1 WO 2016208550A1 JP 2016068317 W JP2016068317 W JP 2016068317W WO 2016208550 A1 WO2016208550 A1 WO 2016208550A1
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WO
WIPO (PCT)
Prior art keywords
cooling water
heat medium
heat
valve
switching valve
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.)
Ceased
Application number
PCT/JP2016/068317
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English (en)
French (fr)
Japanese (ja)
Inventor
憲彦 榎本
梯　伸治
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Denso Corp
Original Assignee
Denso Corp
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Filing date
Publication date
Application filed by Denso Corp filed Critical Denso Corp
Publication of WO2016208550A1 publication Critical patent/WO2016208550A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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 devices
    • B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
    • 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 devices
    • B60H1/02—Heating, cooling or ventilating devices the heat being derived from the propulsion plant
    • B60H1/04—Heating, cooling or ventilating devices the heat being derived from the propulsion plant from cooling liquid of the plant
    • B60H1/08—Heating, cooling or ventilating devices the heat being derived from the propulsion plant from cooling liquid of the plant from other radiator than main radiator
    • 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 devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • 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 devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
    • B60H1/00899—Controlling the flow of liquid in a heat pump system
    • 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 devices
    • B60H1/22—Heating, cooling or ventilating devices the heat source being other than the propulsion plant
    • 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 devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3228—Cooling devices using compression characterised by refrigerant circuit configurations
    • B60H1/32284—Cooling devices using compression characterised by refrigerant circuit configurations comprising two or more secondary circuits, e.g. at evaporator and condenser side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K11/00—Arrangement in connection with cooling of propulsion units
    • B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
    • B60K11/04—Arrangement or mounting of radiators, radiator shutters, or radiator blinds
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • 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
    • F01P3/00—Liquid cooling
    • F01P3/20—Cooling circuits not specific to a single part of engine or machine
    • 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
    • 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 devices
    • B60H1/00271—HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H2001/00307—Component temperature regulation using a liquid flow
    • 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 devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
    • B60H2001/00928—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices comprising a secondary circuit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Definitions

  • the present disclosure relates to a heat management device used for a vehicle.
  • Patent Document 1 describes a vehicle thermal management device that selectively passes hot water generated by a condenser of a refrigeration cycle and cold water generated by an evaporator of a refrigeration cycle to a plurality of thermal devices using a valve unit.
  • the plurality of heat devices are an electric device, a heat exchanger for air conditioning, a heat accumulator, and the like.
  • the volume of water fluctuates with the temperature change of water.
  • a reserve tank is required to buffer this volume fluctuation of water.
  • the reserve tank is a container for storing excess water. For example, when water shrinks at low temperatures, the amount of water in the reserve tank decreases because water is supplied from the reserve tank.
  • the mountability may deteriorate, the weight may increase, the heat transfer may be delayed due to the increased heat capacity of water, and the amount of water discarded during water exchange may increase.
  • the present disclosure aims to suppress a decrease in the heat medium in the reserve tank.
  • a vehicle heat management apparatus includes a pump that sucks and discharges a heat medium, a reserve tank that stores the heat medium, a plurality of heat devices that exchange heat with the heat medium, and a plurality of heat.
  • An upstream valve that is disposed upstream of the flow of the heat medium relative to at least one of the devices and adjusts the opening of the flow path through which the heat medium flows; and the flow of the heat medium with respect to at least one of the heat devices
  • a downstream valve that is arranged on the downstream side and adjusts the opening degree of the flow path through which the heat medium flows; a flow path through which the heat medium flows between the upstream valve and at least one thermal apparatus; and at least one thermal apparatus
  • a hose that forms at least one of the flow paths through which the heat medium flows between the downstream valve and expands and contracts according to the pressure of the heat medium is provided.
  • the pressure loss of the heat medium in the upstream valve is larger than the pressure loss of the heat medium in the downstream valve, so that at least one The flow rate of the heat medium in the heat device is limited.
  • the pressure loss of the heat medium in the upstream valve is lower than the pressure loss of the heat medium in the downstream valve, the pressure of the heat medium in at least one heat device can be lowered, so the hose The hose volume can be reduced by suppressing the expansion of the hose. Therefore, it is possible to suppress a decrease in the heat medium in the reserve tank.
  • FIG. 1 shows the 2nd operation example of the thermal management system for vehicles in 1st Embodiment. It is sectional drawing which shows the 1st switching valve of the thermal management system for vehicles in 2nd Embodiment by this indication. It is a perspective view which shows a part of 1st switching valve of the thermal management system for vehicles in 2nd Embodiment. It is a disassembled perspective view which shows a part of 1st switching valve of the thermal management system for vehicles in 2nd Embodiment. It is a schematic diagram which shows the valve body opening part shape of the switching valve in the 1st modification of the thermal management system for vehicles in 2nd Embodiment.
  • the vehicle thermal management apparatus 10 shown in FIG. 1 is used to adjust various devices and vehicle interiors included in a vehicle to an appropriate temperature.
  • the vehicle thermal management device 10 is applied to a hybrid vehicle that obtains vehicle driving force from an engine and a driving electric motor.
  • the engine is an internal combustion engine.
  • the electric motor for traveling is a motor generator.
  • the hybrid vehicle of the present embodiment is configured as a plug-in hybrid vehicle that can charge power supplied from an external power source to a vehicle-mounted battery mounted on the vehicle when the vehicle is stopped.
  • the external power source is a commercial power source.
  • the in-vehicle battery is a battery.
  • the battery for example, a lithium ion battery can be used.
  • the driving force output from the engine is used not only for driving the vehicle, but also for operating the generator.
  • the electric power generated with the generator and the electric power supplied from the external power supply can be stored in the battery.
  • the battery can also store, as regenerative energy, electric power regenerated by the traveling electric motor during deceleration or downhill.
  • the electric power stored in the battery is supplied not only to the electric motor for traveling but also to various in-vehicle devices including the electric components constituting the thermal management device 10 for the vehicle.
  • the plug-in hybrid vehicle charges the battery from an external power source when the vehicle is stopped before the vehicle starts running, so that the remaining battery charge SOC of the battery becomes equal to or greater than a predetermined reference running balance as at the start of driving.
  • the EV travel mode is a travel mode in which the vehicle travels by the driving force output from the travel electric motor.
  • the HV travel mode is a travel mode in which the vehicle travels mainly by the driving force output from the engine.
  • the travel electric motor is operated to assist the engine.
  • the fuel consumption of the engine is suppressed with respect to a normal vehicle that obtains the driving force for vehicle travel only from the engine by switching between the EV travel mode and the HV travel mode in this way. This improves vehicle fuel efficiency.
  • Switching between the EV traveling mode and the HV traveling mode is controlled by a driving force control device (not shown).
  • the vehicle thermal management apparatus 10 includes a first pump 11, a second pump 12, a radiator 13, a cooling water cooler 14, a cooling water heater 15, a cooler core 16, a heater core 17, and cooling water cooling water.
  • a heat exchanger 18, an inverter 19, a battery temperature adjusting heat exchanger 20A, an oil heat exchanger 20B, a first switching valve 21, a second switching valve 22, a third switching valve 23, and a fourth switching valve 24 are provided.
  • the first pump 11 and the second pump 12 are electric pumps that suck and discharge cooling water.
  • the cooling water is a fluid as a heat medium.
  • a liquid containing at least ethylene glycol, dimethylpolysiloxane or nanofluid, or an antifreeze liquid is used as the cooling water.
  • the first pump 11 and the second pump 12 are flow rate adjusting devices that adjust the flow rate of the cooling water flowing through each cooling water circulation device.
  • the radiator 13, the cooling water cooler 14, the cooling water heater 15, the cooler core 16, the heater core 17, the cooling water cooling water heat exchanger 18, the inverter 19, the battery temperature control heat exchanger 20A and the oil heat exchanger 20B Is a cooling water circulation device.
  • the radiator 13 is a cooling water outdoor air heat exchanger that exchanges heat between cooling water and outside air (hereinafter referred to as outside air).
  • outside air the air outside the passenger compartment is referred to as outside air.
  • the radiator 13 can exhibit a function as a radiator that radiates heat from the cooling water to the outside air and a function as a heat absorber that absorbs heat from the outside air to the cooling water.
  • the radiator 13 is a heat transfer device that has a flow path through which the cooling water flows and performs heat transfer with the cooling water whose temperature is adjusted by the cooling water cooler 14 or the cooling water heater 15.
  • the outdoor blower 30 is an outside air blower that blows outside air to the radiator 13.
  • the outdoor blower 30 is an electric blower.
  • the radiator 13 and the outdoor blower 30 are disposed in the foremost part of the vehicle. For this reason, the traveling wind can be applied to the radiator 13 when the vehicle is traveling.
  • the outdoor blower 30 is a flow rate adjusting device that adjusts the flow rate of outside air flowing through the radiator 13.
  • the cooling water cooler 14 and the cooling water heater 15 are cooling water temperature adjusting heat exchangers that adjust the temperature of the cooling water by exchanging heat of the cooling water.
  • the cooling water cooler 14 is a cooling water cooling heat exchanger that cools the cooling water.
  • the cooling water heater 15 is a cooling water heating heat exchanger that heats the cooling water.
  • the cooling water cooler 14 is a heat medium heat absorber that absorbs heat from the cooling water to the low pressure side refrigerant by exchanging heat between the low pressure side refrigerant and the cooling water of the refrigeration cycle 31 shown in FIG.
  • the cooling water cooler 14 is an evaporator of the refrigeration cycle 31.
  • the cooling water cooler 14 is a low pressure side heat exchanger of the refrigeration cycle 31.
  • the refrigeration cycle 31 is a vapor compression refrigerator that includes a compressor 32, a cooling water heater 15, a receiver 35, an expansion valve 33, a cooling water cooler 14, and an internal heat exchanger 34.
  • a chlorofluorocarbon refrigerant is used as the refrigerant, and a subcritical refrigeration cycle in which the high-pressure side refrigerant pressure does not exceed the critical pressure of the refrigerant is configured.
  • the compressor 32 is an electric compressor driven by electric power supplied from a battery, and sucks, compresses and discharges the refrigerant of the refrigeration cycle 31.
  • the cooling water heater 15 is a condenser that condenses the high-pressure side refrigerant by exchanging heat between the high-pressure side refrigerant discharged from the compressor 32 and the cooling water.
  • the cooling water heater 15 is a high-pressure side heat exchanger of the refrigeration cycle 31.
  • the receiver 35 is a gas-liquid separator that separates the refrigerant condensed in the cooling water heater 15 by gas-liquid separation and stores surplus refrigerant and flows only the liquid-phase refrigerant downstream.
  • the expansion valve 33 is a decompression device that decompresses and expands the liquid-phase refrigerant that has flowed out of the receiver 35.
  • the expansion valve 33 includes a temperature sensing unit 33a that detects the degree of superheat of the coolant cooler 14 outlet side refrigerant based on the temperature and pressure of the coolant cooler 14 outlet side refrigerant, and the coolant cooler 14 outlet side refrigerant.
  • This is a temperature-type expansion valve that adjusts the throttle passage area by a mechanical mechanism so that the degree of superheat of the gas becomes a predetermined range.
  • the cooling water cooler 14 is an evaporator that evaporates the low pressure refrigerant by exchanging heat between the low pressure refrigerant decompressed and expanded by the expansion valve 33 and the cooling water.
  • the gas phase refrigerant evaporated in the cooling water cooler 14 is sucked into the compressor 32 and compressed.
  • the internal heat exchanger 34 is a heat exchanger that exchanges heat between the refrigerant flowing out of the cooling water heater 15 and the refrigerant flowing out of the cooling water cooler 14.
  • the refrigeration cycle 31 is a cooling water cooling and heating device having a cooling water cooler 14 for cooling cooling water and a cooling water heater 15 for heating cooling water.
  • the refrigeration cycle 31 is a low-temperature cooling water generator that generates low-temperature cooling water with the cooling water cooler 14 and a high-temperature cooling water generator that generates high-temperature cooling water with the cooling water heater 15.
  • the cooling water In the radiator 13, the cooling water is cooled by outside air, whereas in the cooling water cooler 14, the cooling water is cooled by the low-pressure refrigerant of the refrigeration cycle 31. For this reason, the temperature of the cooling water cooled by the cooling water cooler 14 can be made lower than the temperature of the cooling water cooled by the radiator 13. Specifically, the radiator 13 cannot cool the cooling water to a temperature lower than the outside air temperature, whereas the cooling water cooler 14 can cool the cooling water to a temperature lower than the outside air temperature.
  • the cooler core 16 and the heater core 17 are heat medium air heat exchange that adjusts the temperature of the blown air by exchanging heat between the cooling water whose temperature is adjusted by the cooling water cooler 14 and the cooling water heater 15 and the blown air to the vehicle interior. It is a vessel.
  • the cooler core 16 is an air cooling heat exchanger that performs heat exchange between cooling water and air blown into the vehicle interior to cool and dehumidify the air blown into the vehicle interior.
  • the heater core 17 is an air heating heat exchanger that heats the air blown into the vehicle interior by exchanging heat between the air blown into the vehicle cabin and the cooling water.
  • the cooler core 16 and the heater core 17 are accommodated in a case (not shown) of an indoor air conditioning unit of the vehicle air conditioner.
  • the case of the indoor air conditioning unit forms an air passage for the blown air blown into the vehicle interior.
  • the inside air inlet and the outside air inlet are formed on the most upstream side of the air flow in the case.
  • the inside air suction port introduces inside air into the case.
  • the outside air intake port introduces outside air into the case.
  • the indoor blower 54 is a blower that blows the inside air sucked from the inside air suction port and the outside air sucked from the outside air suction port toward the vehicle interior.
  • the indoor blower is an electric blower that drives a centrifugal multiblade fan with an electric motor.
  • the centrifugal multiblade fan is a sirocco fan.
  • a blow-out port for blowing blown air into the passenger compartment that is the air-conditioning target space.
  • a defroster outlet, a face outlet, and a foot outlet are provided as the outlet.
  • the defroster outlet blows air conditioned air toward the inner surface of the front window glass of the vehicle.
  • the face air outlet blows conditioned air toward the upper body of the passenger.
  • the air outlet blows air-conditioned air toward the passenger's feet.
  • the cooling water cooling water heat exchanger 18, the inverter 19, and the battery temperature control heat exchanger 20A are heat transfer devices that have a flow path through which the cooling water flows and exchange heat with the cooling water.
  • the cooling water cooling water heat exchanger 18, the inverter 19, and the battery temperature adjustment heat exchanger 20 ⁇ / b> A are temperature adjustment target devices whose temperature is adjusted by cooling water.
  • the cooling water cooling water heat exchanger 18 is a heat exchanger that exchanges heat between the cooling water of the vehicle heat management apparatus 10 and the cooling water of the engine cooling circuit.
  • the engine cooling circuit is a cooling water circulation circuit for cooling the engine.
  • the cooling water of the engine cooling circuit is an engine heat medium.
  • the cooling water cooling water heat exchanger 18 constitutes an engine heat transfer unit that transfers heat between the cooling water circulated by the first pump 11 or the second pump 12 and the engine.
  • An engine is a heat-generating device that generates heat as it operates.
  • the inverter 19 is a power converter that converts DC power supplied from the battery into AC voltage and outputs the AC voltage to the traveling electric motor.
  • the inverter 19 is a heat generating device that generates heat when activated. The amount of heat generated by the inverter 19 changes depending on the traveling state of the vehicle.
  • the cooling water flow path of the inverter 19 constitutes a device heat transfer unit that transfers heat between the heat generating device and the cooling water.
  • the battery temperature control heat exchanger 20A is a heat exchanger that is arranged in the air blowing path to the battery and exchanges heat between the air and cooling water.
  • the battery temperature adjustment heat exchanger 20A is a heat medium air heat exchanger that exchanges heat between the heat medium and air.
  • the battery temperature control heat exchanger 20 ⁇ / b> A constitutes a battery heat transfer unit that transfers heat between the battery and the cooling water.
  • a battery is a heat-generating device that generates heat when activated.
  • Oil heat exchanger 20B is a heat exchanger that adjusts the temperature of oil by exchanging heat between engine oil or transmission oil and cooling water.
  • the first pump 11 is disposed in the first pump flow path 41.
  • the second pump 12 is disposed in the second pump flow path 42.
  • the radiator 13 is disposed in the radiator flow path 43.
  • the cooling water cooler 14 is disposed in the cooling water cooler flow path 44.
  • the cooling water heater 15 is disposed in the cooling water heater flow path 45.
  • the cooler core 16 is disposed in the cooler core flow path 46.
  • the heater core 17 is disposed in the heater core flow path 47.
  • the cooling water cooling water heat exchanger 18 is disposed in the heat exchanger flow path 48.
  • a cooling water / cooling water heat exchanger pump 48 a is disposed in the heat exchanger channel 48.
  • the cooling water cooling water heat exchanger pump 48a is an electric pump that sucks and discharges cooling water.
  • the inverter 19 is disposed in the inverter flow path 49.
  • the battery temperature adjustment heat exchanger 20 ⁇ / b> A is disposed in the battery heat exchange channel 50.
  • the oil heat exchanger 20B is disposed in the oil heat exchanger flow path 51.
  • Each flow path 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51 is formed by piping or a hose.
  • the pipe is formed of a hard material such as metal and does not expand or contract depending on the cooling water pressure.
  • the hose is formed of a flexible material such as rubber, and expands and contracts according to the cooling water pressure.
  • a radiator flow path 43 In this example, a radiator flow path 43, a cooler core flow path 46, a heater core flow path 47, a heat exchanger flow path 48, an inverter flow path 49, a battery heat exchange flow path 50, and an oil heat exchanger flow path 51. Most of these are formed of a flexible hose.
  • a common reserve tank 55 is connected to the first pump channel 41 and the second pump channel 42.
  • the reserve tank 55 is an open-air container (heat medium storage device) that stores cooling water. Therefore, the pressure at the liquid level of the cooling water stored in the reserve tank 55 becomes atmospheric pressure.
  • the reserve tank 55 is a heat medium storage device that stores a heat medium.
  • the reserve tank 55 may be a sealed reserve tank in which the pressure at the liquid level of the stored cooling water is a predetermined pressure (a pressure different from the atmospheric pressure).
  • Storing excess cooling water in the reserve tank 55 can suppress a decrease in the amount of cooling water circulating through each flow path.
  • the reserve tank 55 has a function of gas-liquid separation of bubbles mixed in the cooling water.
  • the heat exchanger flow path 48, the inverter flow path 49, the battery heat exchange flow path 50, and the oil heat exchanger flow path 51 include the first switching valve 21, the second switching valve 22, the third switching valve 23, and the fourth switching valve. It is connected to one of the switching valves 24.
  • the first switching valve 21, the second switching valve 22, the third switching valve 23, and the fourth switching valve 24 are cooling water flow switching devices that switch the flow of cooling water.
  • the first switching valve 21, the second switching valve 22, the third switching valve 23, and the fourth switching valve 24 are circulation switching devices that switch the cooling water circulation state.
  • the first switching valve 21 has a first inlet 21a and a second inlet 21b as cooling water inlets, and has a first outlet 21c, a second outlet 21d and a third outlet 21e as cooling water outlets.
  • the second switching valve 22 has a first inlet 22a and a second inlet 22b as cooling water inlets, and a first outlet 22c, a second outlet 22d, a third outlet 22e, a fourth outlet 22f as cooling water outlets, It has a fifth outlet 22g and a sixth outlet 22h.
  • the third switching valve 23 has a first outlet 23a and a second outlet 23b as cooling water outlets, and a first inlet 23c, a second inlet 23d, a third inlet 23e, a fourth inlet 23f, as cooling water inlets, It has a fifth inlet 23g and a sixth inlet 23h.
  • the fourth switching valve 24 has a first outlet 24a and a second outlet 24b as cooling water outlets, and a first inlet 24c, a second inlet 24d and a third inlet 24e as cooling water inlets.
  • One end of a first pump flow path 41 is connected to the first inlet 21 a of the first switching valve 21.
  • the cooling water discharge side of the first pump 11 is connected to the first inlet 21 a of the first switching valve 21.
  • One end of a second pump flow path 42 is connected to the second inlet 21b of the first switching valve 21.
  • the cooling water discharge side of the second pump 12 is connected to the second inlet 21 b of the first switching valve 21.
  • One end of a cooling water cooler flow path 44 is connected to the first outlet 21 c of the first switching valve 21.
  • the cooling water inlet side of the cooling water cooler 14 is connected to the first outlet 21 c of the first switching valve 21.
  • One end of a cooling water heater channel 45 is connected to the second outlet 21d of the first switching valve 21.
  • the coolant outlet side of the coolant heater 15 is connected to the second outlet 21 d of the first switching valve 21.
  • One end of an inverter flow path 49 is connected to the third outlet 21e of the first switching valve 21.
  • the cooling water inlet side of the inverter 19 is connected to the third outlet 21 e of the first switching valve 21.
  • the other end of the cooling water cooler flow path 44 is connected to the first inlet 22 a of the second switching valve 22.
  • the cooling water outlet side of the cooling water cooler 14 is connected to the first inlet 22 a of the second switching valve 22.
  • the other end of the cooling water heater channel 45 is connected to the second inlet 22b of the second switching valve 22.
  • the cooling water outlet side of the cooling water heater 15 is connected to the second inlet 22 b of the second switching valve 22.
  • radiator flow path 43 One end of a radiator flow path 43 is connected to the first outlet 22c of the second switching valve 22.
  • the cooling water inlet side of the radiator 13 is connected to the first outlet 22 c of the second switching valve 22.
  • One end of a cooler core channel 46 is connected to the second outlet 22d of the second switching valve 22.
  • the cooling water inlet side of the cooler core 16 is connected to the second outlet 22 d of the second switching valve 22.
  • One end of a heater core flow path 47 is connected to the third outlet 22e of the second switching valve 22.
  • the cooling water inlet side of the heater core 17 is connected to the third outlet 22e of the second switching valve 22.
  • One end of a heat exchanger channel 48 is connected to the fourth outlet 22f of the second switching valve 22.
  • the cooling water inlet side of the cooling water cooling water heat exchanger 18 is connected to the fourth outlet 22 f of the second switching valve 22.
  • One end of the battery heat exchange channel 50 is connected to the fifth outlet 22g of the second switching valve 22.
  • the cooling water inlet side of the battery temperature adjusting heat exchanger 20 ⁇ / b> A is connected to the fifth outlet 22 g of the second switching valve 22.
  • One end of an oil heat exchanger channel 51 is connected to the sixth outlet 22h of the second switching valve 22.
  • the cooling water inlet side of the oil heat exchanger 20B is connected to the sixth outlet 22h of the second switching valve 22.
  • the first inlet 24 c of the fourth switching valve 24 is connected to the first outlet 23 a of the third switching valve 23.
  • a second inlet 24 d of the fourth switching valve 24 is connected to the second outlet 23 b of the third switching valve 23.
  • the other end of the radiator flow path 43 is connected to the first inlet 23 c of the third switching valve 23.
  • the coolant outlet side of the radiator 13 is connected to the first inlet 23 c of the third switching valve 23.
  • the other end of the cooler core channel 46 is connected to the second inlet 23d of the third switching valve 23.
  • the cooling water outlet side of the cooler core 16 is connected to the second inlet 23 d of the third switching valve 23.
  • the other end of the heater core channel 47 is connected to the third inlet 23e of the third switching valve 23.
  • the cooling water outlet side of the heater core 17 is connected to the third inlet 23 e of the third switching valve 23.
  • the other end of the heat exchanger channel 48 is connected to the fourth inlet 23f of the third switching valve 23.
  • the cooling water outlet side of the cooling water cooling water heat exchanger 18 is connected to the fourth inlet 23 f of the third switching valve 23.
  • the other end of the battery heat exchange channel 50 is connected to the fifth inlet 23g of the third switching valve 23.
  • the cooling water outlet side of the battery temperature adjusting heat exchanger 20 ⁇ / b> A is connected to the fifth inlet 23 g of the third switching valve 23.
  • One end of an oil heat exchanger channel 51 is connected to the sixth inlet 23h of the third switching valve 23.
  • the coolant outlet side of the oil heat exchanger 20B is connected to the sixth inlet 23h of the third switching valve 23.
  • the other end of the first pump flow path 41 is connected to the first outlet 24 a of the fourth switching valve 24.
  • the cooling water suction side of the first pump 11 is connected to the first outlet 24 a of the fourth switching valve 24.
  • the other end of the second pump flow path 42 is connected to the second outlet 24b of the fourth switching valve 24.
  • the cooling water suction side of the second pump 12 is connected to the second outlet 24 b of the fourth switching valve 24.
  • the other end of the inverter flow path 49 is connected to the third inlet 24e of the fourth switching valve 24.
  • the cooling water outlet side of the inverter 19 is connected to the third inlet 24 e of the fourth switching valve 24.
  • the first switching valve 21, the second switching valve 22, the third switching valve 23, and the fourth switching valve 24 have a structure that can arbitrarily or selectively switch the communication state between each inlet and each outlet.
  • the first switching valve 21 is provided for each of the radiator 13, the cooler core 16, the heater core 17, the cooling water cooling water heat exchanger 18, the inverter 19, the battery temperature adjusting heat exchanger 20A, and the oil heat exchanger 20B.
  • the state in which the cooling water discharged from the first pump 11 flows, the state in which the cooling water discharged from the second pump 12 flows, the cooling water discharged from the first pump 11 and the second pump 12 are discharged.
  • a valve body that switches between a state in which no cooling water flows in is provided.
  • the second switching valve 22 is connected to the first pump 11 for each of the radiator 13, the cooler core 16, the heater core 17, the cooling water cooling water heat exchanger 18, the inverter 19, the battery temperature adjusting heat exchanger 20A, and the oil heat exchanger 20B.
  • a valve body that switches between a state in which the cooling water flows out, a state in which the cooling water flows out to the second pump 12, and a state in which the cooling water does not flow out to the first pump 11 and the second pump 12 is provided.
  • the valve bodies of the first switching valve 21, the second switching valve 22, the third switching valve 23, and the fourth switching valve 24 are adjustable in valve opening. Thereby, the flow volume of the cooling water which flows through the radiator 13, the cooler core 16, the heater core 17, the cooling water cooling water heat exchanger 18, the inverter 19, the battery temperature control heat exchanger 20A, and the oil heat exchanger 20B can be adjusted.
  • the 1st switching valve 21, the 2nd switching valve 22, the 3rd switching valve 23, and the 4th switching valve 24 are the radiator 13, the cooler core 16, the heater core 17, the cooling water cooling water heat exchanger 18, the inverter 19, and the battery temperature. It is a flow rate adjusting device that adjusts the flow rate of cooling water for each of the conditioning heat exchanger 20A and the oil heat exchanger 20B.
  • the first switching valve 21 selectively selects the cooling water discharged from the first pump 11 and the cooling water discharged from the second pump 12 from the radiator 13, the cooler core 16, the heater core 17, and the cooling water cooling water heat exchanger. 18, the inverter 19, the battery temperature control heat exchanger 20A, and the oil heat exchanger 20B can be made to flow.
  • the 1st switching valve 21 and the 2nd switching valve 22 are the radiator 13, the cooler core 16, the heater core 17, the cooling water cooling water heat exchanger 18, the inverter 19, the battery temperature control heat exchanger 20A, and the oil heat exchanger 20B.
  • the cooling water cooled by the cooling water cooler 14 and the cooling water heated by the cooling water heater 15 are selectively passed.
  • the first switching valve 21 mixes the cooling water discharged from the first pump 11 and the cooling water discharged from the second pump 12 at an arbitrary flow rate ratio, and the radiator 13, the cooler core 16, the heater core 17, and the cooling water.
  • the water cooling water heat exchanger 18, the inverter 19, the battery temperature control heat exchanger 20A, and the oil heat exchanger 20B can be made to flow.
  • the 1st switching valve 21 and the 2nd switching valve 22 are the radiator 13, the cooler core 16, the heater core 17, the cooling water cooling water heat exchanger 18, the inverter 19, the battery temperature control heat exchanger 20A, and the oil heat exchanger 20B.
  • the flow rate ratio adjusting device adjusts the flow rate ratio between the cooling water cooled by the cooling water cooler 14 and the cooling water heated by the cooling water heater 15.
  • the first switching valve 21, the second switching valve 22, the third switching valve 23, and the fourth switching valve 24 may be integrally formed to share a valve body drive source.
  • the 1st switching valve 21, the 2nd switching valve 22, the 3rd switching valve 23, and the 4th switching valve 24 may be comprised by the combination of many valves.
  • the second switching valve 22 may be interlocked with the third switching valve 23.
  • the control device 60 is composed of a well-known microcomputer including a CPU, ROM, RAM, etc. and its peripheral circuits, and performs various calculations and processing based on an air conditioning control program stored in the ROM, and is connected to the output side. Control the operation of various controlled devices.
  • Control target devices controlled by the control device 60 are the first pump 11, the second pump 12, the first switching valve 21, the second switching valve 22, the third switching valve 23, the fourth switching valve 24, and the like.
  • control device 60 hardware and software for controlling the operation of various control target devices connected to the output side constitute a control unit that controls the operation of each control target device.
  • the hardware and software for controlling the operation of the first pump 11 and the second pump 12 in the control device 60 is a pump control device 60a.
  • the pump control device 60a is a flow rate control unit that controls the flow rate of the cooling water flowing through each cooling water circulation device.
  • the hardware and software for controlling the operation of the first switching valve 21, the second switching valve 22, the third switching valve 23, and the fourth switching valve 24 in the control device 60 are the switching valve control device 60b.
  • the switching control device 60b is also a circulation switching control unit that switches the cooling water circulation state.
  • the switching control device 60b is also a flow rate control unit that adjusts the flow rate of the cooling water flowing through each cooling water circulation device.
  • the hardware and software for controlling the operation of the compressor 32 in the control device 60 is the compressor control device 60c.
  • the compressor control device 70d is a refrigerant flow rate control unit that controls the flow rate of the refrigerant discharged from the compressor 32.
  • Each control device 60a, 60b, 60c may be configured separately from the control device 60.
  • the detection signal of the sensor group is input to the input side of the control device 60.
  • the sensor group includes a first water temperature sensor 61, a second water temperature sensor 62, a circuit pressure sensor 63, a water level sensor 64, an outside air temperature sensor 65, a radiator temperature sensor 66, a cooler core temperature sensor 67, a heater core temperature sensor 68, and a heat exchanger temperature sensor. 69, an inverter temperature sensor 70, a battery temperature sensor 71, an engine coolant temperature sensor 72, and the like.
  • the first water temperature sensor 61 is a temperature detection device that detects the temperature of the cooling water circulated by the first pump 11. For example, the first water temperature sensor 61 detects the temperature of the cooling water flowing out from the cooling water cooler 14.
  • the second water temperature sensor 62 is a temperature detection device that detects the temperature of the cooling water circulated by the second pump 12. For example, the second water temperature sensor 62 detects the temperature of the cooling water flowing out from the cooling water heater 15.
  • the circuit pressure sensor 63 is a reference pressure detection device that detects the reference pressure of the cooling water circuit. For example, the circuit pressure sensor 63 detects the pressure of the cooling water flow path that connects the first pump flow path 41 and the second pump flow path 42 and the reserve tank 55.
  • the water level sensor 64 is a liquid level detecting device that detects the water level of the cooling water in the reserve tank 55.
  • the outside air temperature sensor 65 is an outside air temperature detecting device that detects the outside air temperature.
  • the radiator temperature sensor 66 is a temperature detection device that detects the temperature of the radiator 13.
  • the radiator temperature sensor 66 is a fin thermistor that detects the temperature of the heat exchange fins of the radiator 13, a water temperature sensor that detects the temperature of cooling water flowing through the radiator 13, or the like.
  • the cooler core temperature sensor 67 is a temperature detection device that detects the temperature of the cooler core 16.
  • the cooler core temperature sensor 67 is a fin thermistor that detects the temperature of heat exchange fins of the cooler core 16, a water temperature sensor that detects the temperature of cooling water flowing through the cooler core 16, or the like.
  • the heater core temperature sensor 68 is a temperature detection device that detects the temperature of the heater core 17.
  • the heater core temperature sensor 68 is a fin thermistor that detects the temperature of heat exchange fins of the heater core 17, a water temperature sensor that detects the temperature of cooling water flowing through the heater core 17, or the like.
  • the heat exchanger temperature sensor 69 is a temperature detection device that detects the temperature of the cooling water cooling water heat exchanger 18.
  • the heat exchanger temperature sensor 69 is a fin thermistor that detects the temperature of heat exchange fins of the cooling water cooling water heat exchanger 18 or a water temperature sensor that detects the temperature of cooling water flowing through the cooling water cooling water heat exchanger 18. Etc.
  • the inverter temperature sensor 70 is a temperature detection device that detects the temperature of the inverter 19.
  • the inverter temperature sensor 70 is a water temperature sensor that detects the temperature of cooling water flowing through the inverter 19.
  • the battery temperature sensor 71 is a temperature detection device that detects the temperature of the battery temperature control heat exchanger 20A.
  • the battery temperature sensor 71 is a fin thermistor that detects the temperature of heat exchange fins of the battery temperature adjustment heat exchanger 20A, a water temperature sensor that detects the temperature of cooling water flowing through the battery temperature adjustment heat exchanger 20A, or the like.
  • the engine coolant temperature sensor 72 is a temperature detection device that detects the temperature of coolant in the engine cooling circuit.
  • the control device 60 controls the operation of the first pump 11, the second pump 12, the compressor 32, the first switching valve 21, the second switching valve 22, the third switching valve 23, the fourth switching valve 24, and the like, It can be switched to various operating modes.
  • the cooling water sucked and discharged by the first pump 11 is converted into the cooling water cooler 14, the radiator 13, the cooler core 16, the heater core 17, the cooling water cooling water heat exchanger 18, the inverter 19, and the battery temperature adjustment heat exchange.
  • a low-temperature side cooling water circuit that circulates between at least one of the heat exchanger 20A and the oil heat exchanger 20B is formed, and the cooling water sucked and discharged by the second pump 12 is supplied to the cooling water heater 15 , Radiator 13, cooler core 16, heater core 17, cooling water cooling water heat exchanger 18, inverter 19, battery temperature control heat exchanger 20 ⁇ / b> A, and oil heat exchanger 20 ⁇ / b> B circulate between the high temperature side cooling A water circuit is formed.
  • the radiator 13 When each of the radiator 13, the cooler core 16, the heater core 17, the cooling water cooling water heat exchanger 18, the inverter 19, the battery temperature adjusting heat exchanger 20A and the oil heat exchanger 20B is connected to the low temperature side cooling water circuit, By switching between the case where it is connected to the high temperature side cooling water circuit according to the situation, the radiator 13, the cooler core 16, the heater core 17, the cooling water cooling water heat exchanger 18, the inverter 19, the battery temperature adjusting heat exchanger 20A and the oil The heat exchanger 20B can be adjusted to an appropriate temperature depending on the situation.
  • the heat pump operation of the refrigeration cycle 31 can be performed. That is, in the low temperature side cooling water circuit, the cooling water cooled by the cooling water cooler 14 flows through the radiator 13, so that the cooling water absorbs heat from the outside air by the radiator 13.
  • the cooling water that has absorbed heat from the outside air by the radiator 13 exchanges heat with the refrigerant of the refrigeration cycle 31 by the cooling water cooler 14 to radiate heat. Therefore, in the cooling water cooler 14, the refrigerant of the refrigeration cycle 31 absorbs heat from the outside air through the cooling water.
  • the refrigerant that has absorbed heat from the outside air in the cooling water cooler 14 radiates heat by exchanging heat with the cooling water in the high-temperature side cooling water circuit in the cooling water heater 15. Therefore, it is possible to realize a heat pump operation that pumps up the heat of the outside air.
  • the radiator 13 When the radiator 13 is connected to the high temperature side cooling water circuit, the cooling water heated by the cooling water heater 15 flows through the radiator 13, so that the radiator 13 can dissipate the heat of the cooling water to the outside air.
  • the cooling water cooled by the cooling water cooler 14 flows through the cooler core 16, so that the air blown into the vehicle compartment can be cooled and dehumidified by the cooler core 16. That is, the passenger compartment can be cooled and dehumidified.
  • the cooling water heated by the cooling water heater 15 flows through the heater core 17, so that the air blown into the vehicle compartment can be heated by the heater core 17. That is, the passenger compartment can be heated.
  • the cooling water cooling water heat exchanger 18 When the cooling water cooling water heat exchanger 18 is connected to the low temperature side cooling water circuit, the cooling water cooled by the cooling water cooler 14 flows through the cooling water cooling water heat exchanger 18, so that the engine cooling water can be cooled. In other words, since the cooling water in the low-temperature side cooling water circuit can absorb heat from the engine cooling water in the cooling water cooling water heat exchanger 18, a heat pump operation for pumping up waste heat of the engine can be realized.
  • the cooling water cooling water heat exchanger 18 When the cooling water cooling water heat exchanger 18 is connected to the high temperature side cooling water circuit, the cooling water heated by the cooling water heater 15 flows through the cooling water cooling water heat exchanger 18, so that the engine cooling water can be heated. Therefore, warming up can be promoted by heating the engine. It is also possible to promote heating of equipment through which engine cooling water flows, such as an exhaust heat recovery device that recovers heat from engine exhaust, or an EGR cooler.
  • the cooling water cooled by the cooling water cooler 14 flows through the inverter 19, so that the inverter 19 can be cooled.
  • a heat pump operation that pumps up the waste heat of the inverter 19 can be realized.
  • the cooling water heated by the cooling water heater 15 flows through the inverter 19, so that the inverter 19 can be heated to warm up.
  • the cooling water cooled by the cooling water cooler 14 flows through the battery temperature adjustment heat exchanger 20A, so that the battery can be cooled.
  • the cooling water heated by the cooling water heater 15 flows through the battery temperature adjustment heat exchanger 20A, so that the battery can be heated and warmed up.
  • the cooling water cooled by the cooling water cooler 14 flows through the oil heat exchanger 20B, so that the oil can be cooled. In other words, it is possible to realize a heat pump operation that pumps up waste heat of oil.
  • the cooling water heated by the cooling water heater 15 flows through the oil heat exchanger 20B, so that the oil can be heated and warmed up.
  • control device 60 switches the first switching valve 21 and the second switching so that the radiator 13 and the inverter 19 are connected to the low temperature side cooling water circuit, and the heater core 17 is connected to the high temperature side cooling water circuit.
  • the operation of the valve 22, the third switching valve 23, and the fourth switching valve 24 is controlled.
  • the control device 60 controls the operation of the second switching valve 22 so that water flow to the cooler core 16, the battery temperature adjusting heat exchanger 20A, and the oil heat exchanger 20B is blocked. That is, the cooler core flow path 46, the battery heat exchange flow path 50, and the oil heat exchanger flow path 51 are closed by the second switching valve 22 positioned on the upstream side of the coolant flow. On the other hand, the cooler core channel 46, the battery heat exchange channel 50, and the oil heat exchanger channel 51 are opened by the third switching valve 23 located on the downstream side of the coolant flow.
  • the pressure loss of the second switching valve 22 is larger than the pressure loss of the third switching valve 23.
  • the cooler core channel 46, the battery heat exchange channel 50, and the oil heat exchanger channel 51 are closed by the second switching valve 22 and opened by the third switching valve 23, the cooler core channel 46, battery heat
  • the internal pressures of the exchange channel 50 and the oil heat exchanger channel 51 are equalized with the third switching valve 23 located on the downstream side of the coolant flow.
  • the pressure of the third switching valve 23 corresponds to the suction pressure of the first pump 11 and the second pump 12, and is on the low pressure side in the cooling water circuit.
  • the hose forming the cooler core flow path 46, the battery heat exchange flow path 50, and the oil heat exchanger flow path 51 can be prevented from expanding due to internal pressure, so the cooler core flow path 46, the battery heat exchange flow path 50 and the increase in the internal volume of the oil heat exchanger channel 51 can be suppressed.
  • the cooling water hose is unlikely to contract due to the refrigerant suction pressure and is likely to expand due to the refrigerant discharge pressure. Therefore, even if the second switching valve 22 that is the upstream side valve is closed and the inside of the cooling water hose becomes equivalent to the refrigerant suction pressure, the cooling water hose hardly contracts, and the effect of this embodiment can be obtained.
  • the cross section of the cooling water hose is circular or elliptical.
  • the circumferential length of the cooling water hose cross section becomes long. A tensile force is applied to the rubber around the cooling water hose.
  • the circumferential length of the cross section of the cooling water hose is shortened. A compressive force is applied to the rubber around the cooling water hose.
  • the rubber is compressed in the vertical direction, the amount of contraction in the vertical direction with respect to the compression appears by expanding in the horizontal direction.
  • the cooling water hose rubber has a differential pressure ( ⁇ ) between the external pressure (atmospheric pressure) and the internal pressure. If the internal pressure of the cooling water hose is higher than the external pressure (atmospheric pressure), The absolute pressure applied in the normal direction is “atmospheric pressure + ⁇ ”. On the other hand, when the internal pressure of the cooling water hose is lower than the external pressure (atmospheric pressure), the absolute pressure applied in the normal direction of the cross section of the cooling water hose rubber is “atmospheric pressure ⁇ ”. This means that when the internal pressure of the cooling water hose is high, it works in the direction of accelerating the elongation of the circumference and accelerates the expansion.
  • the first pump 11 and the second pump 12 have a pump characteristic that the generated head becomes lower as the flow rate of the cooling water increases. Therefore, water is passed through one device among the radiator 13, the cooler core 16, the heater core 17, the cooling water cooling water heat exchanger 18, the inverter 19, the battery temperature adjusting heat exchanger 20A, and the oil heat exchanger 20B to other devices. When the water flow is cut off, the discharge pressure of the pump becomes the highest and the cooling water hose expands most.
  • the cooling water hose expands, the cooling water capacity of the cooling water circuit increases accordingly, so that the cooling water in the reserve tank 55 is supplemented to the cooling water circuit, and the liquid level of the cooling water in the reserve tank 55 decreases. .
  • the cooling water temperature or the ambient temperature is high, the hose becomes soft, and the amount of expansion due to the internal pressure increases significantly.
  • the volume of the cooling water in the cooling water hose is about 2L.
  • the internal pressure of the cooling water circuit increases (for example, about 108 kPa) and the inner diameter of the cooling water hose increases by 15%
  • the internal volume of the cooling water hose increases by about 300 cc. Therefore, the cooling water in the reserve tank 55 is reduced by 300 cc.
  • the inner diameter may be able to increase by 15% or more.
  • the control device 60 When the pressure in the cooling water circuit is high, the cooling water temperature is high, or the cooling water level in the reserve tank 55 is high, the control device 60 is connected to the second switching valve 22 and the control valve 60 as shown in the operation example of FIG. The operation of the third switching valve 23 is controlled.
  • control device 60 determines that the cooling water in the reserve tank 55 increases based on at least one detection value among the first water temperature sensor 61, the second water temperature sensor 62, the circuit pressure sensor 63, and the water level sensor 64.
  • the operation of the second switching valve 22 and the third switching valve 23 is controlled as shown in the operation example of FIG.
  • the control device 60 controls the operation of the third switching valve 23 so that water flow to the cooler core 16, the battery temperature adjusting heat exchanger 20A, and the oil heat exchanger 20B is blocked. That is, the cooler core flow path 46, the battery heat exchange flow path 50, and the oil heat exchanger flow path 51 are closed by the third switching valve 23 located on the downstream side of the cooling water flow. On the other hand, the cooler core flow path 46, the battery heat exchange flow path 50, and the oil heat exchanger flow path 51 are opened by the second switching valve 22 positioned on the upstream side of the coolant flow.
  • the pressure loss of the third switching valve 23 becomes larger than the pressure loss of the second switching valve 22.
  • the cooler core channel 46, the battery heat exchange channel 50, and the oil heat exchanger channel 51 are closed by the third switching valve 23 and opened by the second switching valve 22, the cooler core channel 46, battery heat
  • the internal pressures of the exchange flow path 50 and the oil heat exchanger flow path 51 are equalized with the second switching valve 22 located on the upstream side of the cooling water flow.
  • the pressure of the second switching valve 22 corresponds to the discharge pressure of the first pump 11 and the second pump 12, and is on the higher pressure side in the cooling water circuit.
  • the hose forming the cooler core flow path 46, the battery heat exchange flow path 50, and the oil heat exchanger flow path 51 expands due to the internal pressure, so the cooler core flow path 46, the heater core flow path 47, and the battery heat exchange flow
  • the internal volume of the flow path 50 increases. As a result, an increase in the coolant level in the reserve tank 55 can be suppressed.
  • the cooling water has a property that the specific volume increases as the water temperature increases. Therefore, the water level of the reserve tank 55 increases as the water temperature increases. As the water level in the reserve tank 55 increases, the pressure (reference pressure) in the reserve tank 55 increases.
  • the increase in the water level of the reserve tank 55 can be suppressed by blocking the water flow on the third switching valve 23 side.
  • the control device 60 is configured such that at least one of the radiator 13, the cooler core 16, the heater core 17, the cooling water cooling water heat exchanger 18, the inverter 19, the battery temperature adjusting heat exchanger 20A, and the oil heat exchanger 20B has a boiling temperature of the cooling water.
  • the temperature for example, 110 ° C.
  • the operations of the second switching valve 22 and the third switching valve 23 are controlled as shown in the operation example of FIG.
  • the control device 60 includes an outside air temperature sensor 65, a radiator temperature sensor 66, a cooler core temperature sensor 67, a heater core temperature sensor 68, a heat exchanger temperature sensor 69, an inverter temperature sensor 70, a battery temperature sensor 71, and an engine coolant temperature sensor 72. Based on at least one detected value, at least one of the radiator 13, the cooler core 16, the heater core 17, the cooling water cooling water heat exchanger 18, the inverter 19, the battery temperature adjusting heat exchanger 20A, and the oil heat exchanger 20B has a temperature. When it is estimated that the boiling temperature of the cooling water (for example, 110 ° C.) is exceeded, the operations of the second switching valve 22 and the third switching valve 23 are controlled as shown in the operation example of FIG.
  • the boiling temperature of the cooling water for example, 110 ° C.
  • the radiator 13, the cooler core 16, the heater core 17, the cooling water cooling water heat exchanger 18, the inverter 19, the battery temperature adjusting heat exchanger 20A, and the oil heat exchanger 20B are referred to as a plurality of thermal devices.
  • the second switching valve 22 is referred to as an upstream valve
  • the third switching valve 23 is referred to as a downstream valve.
  • the pressure loss of the cooling water in the upstream valve 22 is reduced.
  • the flow volume of the cooling water in at least 1 thermal equipment is restrict
  • the pressure of the cooling water in at least one thermal device can be reduced.
  • the hose forming the cooling water flow paths 43, 46, 47, 48, 50, 51 can be restrained from expanding so that the volume of the hose can be kept small. Therefore, it is possible to suppress a decrease in the cooling water in the reserve tank 55.
  • the pressure of the cooling water in at least one thermal device can be lowered, the lifetime of the thermal device can be increased and the structure can be simplified.
  • the pressure loss of the cooling water in the upstream valve 22 is smaller than the pressure loss of the cooling water in the downstream valve 23 by making the opening degree of the upstream valve 22 smaller than the opening degree of the downstream valve 23. growing. Thereby, the pressure of the cooling water in at least one thermal apparatus can be reliably lowered.
  • the opening degree of the upstream valve 22 becomes 0%.
  • the degree of opening of the downstream valve 23 is greater than 0%, the flow of the cooling water in at least one thermal device is blocked.
  • the downstream valve 23 can be opened even if the flow of the cooling water in at least one thermal device is interrupted, the cooling water in the at least one thermal device is caused by heat generation or external factors of the at least one thermal device itself. Even if the temperature increases, it is possible to suppress an increase in the pressure of the cooling water in at least one thermal device.
  • the upstream side valve 22 selectively allows any one of the cooling water discharged from the first pump 11 and the cooling water discharged from the second pump 12 to flow into at least one thermal device.
  • 23 selectively allows the cooling water flowing out from at least one thermal device to flow into either the first pump 11 or the second pump 12.
  • thermal management can be performed appropriately.
  • the cooling water pressure, the cooling water temperature, and the reserve tank 55 are stored in the case where the cooling water is flowing through at least one other thermal device. If it is determined that the amount of cooling water stored in the reserve tank 55 increases based on at least one of the liquid level heights of the cooling water, the pressure loss of the cooling water in the downstream valve 23 is upstream. By becoming larger than the pressure loss of the cooling water in the side valve 22, the flow rate of the cooling water in at least one thermal device is limited.
  • the pressure of the cooling water in at least one thermal device can be increased, so that the hoses 43, 46, 47, 48, 50, 51 are It can be expanded to increase the volume of the hose. Therefore, an increase in cooling water in the reserve tank 55 can be suppressed.
  • the cooling water pressure, the cooling water temperature, and the liquid level of the cooling water stored in the reserve tank 55 when the cooling water is distributed to at least one other thermal device When the cooling water stored in the reserve tank 55 is determined to decrease based on at least one of the above, the pressure loss of the cooling water in the upstream valve 22 is greater than the pressure loss of the cooling water in the downstream valve 23. By becoming large, the flow rate of the cooling water in at least one thermal device is limited.
  • the pressure of the cooling water in at least one thermal device can be lowered, so that the hose 43, 46, 47, 48, 50, 51 Expansion of the hose can be suppressed to reduce the volume of the hose. Therefore, it is possible to suppress a decrease in the cooling water in the reserve tank 55.
  • the temperature of at least one thermal device or the other at least one thermal device in the case where cooling water is circulated through at least one other thermal device Is estimated to exceed the predetermined temperature, the pressure loss of the cooling water in the downstream valve 23 is larger than the pressure loss of the cooling water in the upstream valve 22, so that the cooling water in at least one thermal device is The flow rate is limited.
  • the pressure of the cooling water in the at least one thermal device can be increased.
  • the boiling temperature of can be increased. Therefore, boiling of cooling water can be suppressed.
  • heat exchange is performed by the air that is heat-exchanged by the cooler core 16, the air that is heat-exchanged by the heater core 17, the engine coolant that is heat-exchanged by the cooling water cooling water heat exchanger 18, and the heat exchanger 20A for battery temperature adjustment.
  • At least one of the air is called a counterpart fluid.
  • the pressure loss of the cooling water in the downstream valve 23 is reduced by the cooling water in the upstream valve 22. Being greater than the pressure loss limits the flow rate of the cooling water in at least one thermal device.
  • the opening degrees of the second switching valve 22 and the third switching valve 23 are made different from each other by the control by the control device 60, but in this embodiment, the opening shapes of the second switching valve 22 and the third switching valve 23 are different. Are different from each other, the opening degrees of the second switching valve 22 and the third switching valve 23 are made different from each other.
  • the basic configuration of the second switching valve 22 and the third switching valve 23 is the same. 8, 9, and 10 illustrate the second switching valve 22, and the reference numerals corresponding to the third switching valve 23 are attached in parentheses in FIGS. 8, 9, and 10 to indicate the third switching valve 23. Is omitted.
  • the second switching valve 22 includes a casing 221, a valve body 222, a seal member 223, and a leaf spring 224.
  • the casing 221 accommodates a valve body 222, a seal member 223, and a leaf spring 224.
  • the casing 221 forms an inlet channel (not shown) and an outlet channel 221a.
  • the inlet channel is a channel through which the cooling water flowing into the second switching valve 22 flows.
  • the outlet channel 221a is a channel through which the cooling water flowing out from the second switching valve 22 flows.
  • the valve body 222 has an opening 222a that can communicate with the outlet channel 221a.
  • the valve body 222 is driven by a drive source (not shown) such as an electric actuator to open and close the outlet channel 221a.
  • a drive source such as an electric actuator to open and close the outlet channel 221a.
  • the opening 222a of the valve body 222 communicates with the outlet channel 221a, the outlet channel 221a is opened.
  • the opening 222a of the valve body 222 does not communicate with the outlet channel 221a, the outlet channel 221a is closed.
  • the seal member 223 can be in close contact with the peripheral edge of the opening 222a of the valve body 222, and prevents leakage of cooling water when the valve is closed.
  • the leaf spring 224 is an elastic member that biases the seal member 223 toward the valve body 222, and improves the sealing performance of the seal member 223.
  • the third switching valve 23 includes a casing 231, a valve body 232, a seal member 233, and a leaf spring 234.
  • the casing 231 of the third switching valve 23 forms an inlet channel (not shown) and an outlet channel 231a.
  • the shape of the opening 222a of the valve body 222 of the second switching valve 22 and the shape of the opening 232a of the valve body 232 of the third switching valve 23 are mutually different. Since they are different, the opening degree when the second switching valve 22 and the third switching valve 23 are opened is different from each other.
  • the valve body 222 of the second switching valve 22 and the valve body 232 of the third switching valve 23 move in the left-right direction.
  • the shape of the opening 222a of the valve body 222 of the second switching valve 22 is a regular triangle, and the shape of the opening 232a of the valve body 232 of the third switching valve 23 is a regular circle. is there.
  • the shape of the opening 222 a of the valve body 222 of the second switching valve 22 is an oval extending in the moving direction of the valve body 222, and the valve body 232 of the third switching valve 23 is The shape of the opening 232a is a perfect circle.
  • the shape of the opening 222 a of the valve body 222 of the second switching valve 22 is a shape in which an ellipse extending in the moving direction of the valve body 222 and a perfect circle are concentrically stacked.
  • the shape of the opening 232 a of the valve body 232 of the third switching valve 23 is an oval extending in the moving direction of the valve body 232.
  • the shape of the opening 222 a of the valve body 222 of the second switching valve 22 is a right triangle whose height changes in the moving direction of the valve body 222, and the valve of the third switching valve 23
  • the shape of the opening 232 a of the body 232 is an oval extending in the moving direction of the valve body 232.
  • the shape of the opening 222a of the second switching valve 22 and the shape of the opening 232a of the third switching valve 23 are different from each other, so that the opening degree of the second switching valve 22 is the third switching valve.
  • the opening is smaller than 23.
  • the second switching valve 22 may be interlocked with the third switching valve 23.
  • the opening degree of the second switching valve 22 and the third switching valve 23 can be made different from each other with a simple configuration.
  • the shape of the opening 222a of the valve body 222 of the second switching valve 22 and the shape of the opening 232a of the valve body 232 of the third switching valve 23 are different from each other.
  • 22 and the third switching valve 23 have different pressure losses, but the sealing force of the second switching valve 22 by the sealing member 223 and the sealing force of the third switching valve 23 by the sealing member 233 are different from each other.
  • the pressure loss of the second switching valve 22 and the third switching valve 23 may be different from each other.
  • the sealing force by the sealing member 233 of the third switching valve 23 is weaker than the sealing force by the sealing member 223 of the second switching valve 22, the pressure loss in the second switching valve 22 is reduced. It becomes larger than the pressure loss at. Therefore, the same operational effects as those of the above embodiment can be obtained.
  • the sealing force by the seal member 223 of the second switching valve 22 is used.
  • the sealing force by the seal member 233 of the third switching valve 23 are different from each other.
  • the sealing force by the sealing member 223 of the second switching valve 22 and the second The sealing force by the sealing member 233 of the 3 switching valve 23 will be different from each other.
  • the sealing force by the sealing member 223 of the second switching valve 22 and the sealing member 233 of the third switching valve 23 are determined depending on the presence or absence of the sealing member 233 of the third switching valve 23 and the sealing member 223 of the second switching valve 22.
  • the sealing force due to the difference will be different from each other.
  • the sealing force of the sealing member 233 of the third switching valve 23 is weaker than the sealing force of the sealing member 223 of the second switching valve 22, so that the pressure loss of the cooling water in the second switching valve 22 is reduced. Becomes larger than the pressure loss of the cooling water in the third switching valve 23.
  • the pressure of the cooling water in at least one thermal device can be lowered similarly to the above-described embodiment, the reduction of the cooling water in the reserve tank 55 can be suppressed. Moreover, since the pressure of the cooling water in at least one thermal device can be lowered, the lifetime of the thermal device can be increased and the structure can be simplified.
  • the cooling water is used as the heat medium for adjusting the temperature of the temperature adjustment target device, but various media such as oil may be used as the heat medium.
  • Nanofluid may be used as the heat medium.
  • a nanofluid is a fluid in which nanoparticles having a particle size of the order of nanometers are mixed.
  • the effect of improving the thermal conductivity in a specific temperature range the effect of increasing the heat capacity of the heat medium, the effect of preventing the corrosion of metal pipes and the deterioration of rubber pipes, and the heat medium at an extremely low temperature
  • liquidity of can be acquired.
  • Such an effect varies depending on the particle configuration, particle shape, blending ratio, and additional substance of the nanoparticles.
  • the thermal conductivity can be improved, it is possible to obtain the same cooling efficiency even with a small amount of heat medium as compared with the cooling water using ethylene glycol.
  • the amount of cold storage heat due to the sensible heat of the heat medium itself can be increased.
  • the aspect ratio of the nanoparticles is preferably 50 or more. This is because sufficient thermal conductivity can be obtained.
  • the aspect ratio is a shape index that represents the ratio of the vertical and horizontal dimensions of the nanoparticles.
  • Nanoparticles containing any of Au, Ag, Cu and C can be used. Specifically, Au nanoparticle, Ag nanowire, CNT, graphene, graphite core-shell nanoparticle, Au nanoparticle-containing CNT, and the like can be used as the constituent atoms of the nanoparticle.
  • the CNT is a carbon nanotube.
  • the graphite core-shell nanoparticle is a particle body having a structure such as a carbon nanotube surrounding the atom.
  • a chlorofluorocarbon refrigerant is used as the refrigerant.
  • the type of the refrigerant is not limited to this, and natural refrigerant such as carbon dioxide, hydrocarbon refrigerant, or the like may be used. Good.
  • the refrigeration cycle 31 of each of the above embodiments constitutes a subcritical refrigeration cycle in which the high-pressure side refrigerant pressure does not exceed the critical pressure of the refrigerant, but the supercritical refrigeration cycle in which the high-pressure side refrigerant pressure exceeds the critical pressure of the refrigerant. May be configured.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
PCT/JP2016/068317 2015-06-24 2016-06-21 車両用熱管理装置 Ceased WO2016208550A1 (ja)

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Cited By (5)

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EP3760848A1 (de) * 2019-07-05 2021-01-06 Ford Global Technologies, LLC Anordnung und verfahren zur temperierung eines verbrennungsmotors und elektrischer antriebskomponenten eines hybridfahrzeugs
EP4086096A4 (en) * 2020-01-31 2023-06-28 Mitsubishi Heavy Industries Thermal Systems, Ltd. Air conditioning device for vehicle
WO2023117162A1 (de) * 2021-12-20 2023-06-29 Audi Ag Kühlmittelkreislauf für optimiertes thermomanagement für ein zumindest teilweise elektrisch angetriebenes kraftfahrzeug
EP4176166A4 (en) * 2020-07-01 2024-08-07 Scania CV AB MULTI-CIRCUIT THERMAL MANAGEMENT SYSTEM INCLUDING MIXING LINES, AND VEHICLE
WO2025108714A1 (de) * 2023-11-23 2025-05-30 Robert Bosch Gmbh Thermosystem für ein batteriebetriebenes fahrzeug und verfahren hierzu

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JP7463119B2 (ja) * 2020-01-31 2024-04-08 三菱重工サーマルシステムズ株式会社 車両用空調装置
JP7400614B2 (ja) * 2020-04-28 2023-12-19 株式会社デンソー バルブ装置
JP7361177B1 (ja) 2022-09-16 2023-10-13 三菱重工サーマルシステムズ株式会社 車両用の温調システムおよび温調方法
WO2024116458A1 (ja) * 2022-11-30 2024-06-06 株式会社豊田自動織機 車両用熱マネジメントシステム
JP2024079548A (ja) * 2022-11-30 2024-06-11 株式会社豊田自動織機 車両用熱マネジメントシステム
JP2024159008A (ja) * 2023-04-28 2024-11-08 株式会社デンソー 流体回路システム

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WO2011015426A1 (de) * 2009-08-07 2011-02-10 Robert Bosch Gmbh Temperierungseinrichtung für ein kraftfahrzeug
US20120247753A1 (en) * 2009-12-17 2012-10-04 Zf Friedrichshafen Ag Hybrid motor vehicle having two cooling circuits
JP2013060190A (ja) * 2011-09-13 2013-04-04 Behr Gmbh & Co Kg 車両の複数の構成要素を調温するための装置および車両システム
JP2014043181A (ja) * 2012-08-28 2014-03-13 Denso Corp 車両用熱管理システム
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JPH0367993A (ja) * 1989-08-07 1991-03-22 Nippondenso Co Ltd 熱交換システム
WO2011015426A1 (de) * 2009-08-07 2011-02-10 Robert Bosch Gmbh Temperierungseinrichtung für ein kraftfahrzeug
US20120247753A1 (en) * 2009-12-17 2012-10-04 Zf Friedrichshafen Ag Hybrid motor vehicle having two cooling circuits
JP2013060190A (ja) * 2011-09-13 2013-04-04 Behr Gmbh & Co Kg 車両の複数の構成要素を調温するための装置および車両システム
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Publication number Priority date Publication date Assignee Title
EP3760848A1 (de) * 2019-07-05 2021-01-06 Ford Global Technologies, LLC Anordnung und verfahren zur temperierung eines verbrennungsmotors und elektrischer antriebskomponenten eines hybridfahrzeugs
EP4086096A4 (en) * 2020-01-31 2023-06-28 Mitsubishi Heavy Industries Thermal Systems, Ltd. Air conditioning device for vehicle
US12208661B2 (en) 2020-01-31 2025-01-28 Mitsubishi Heavy Industries Thermal Systems, Ltd. Air conditioning device for vehicle
EP4176166A4 (en) * 2020-07-01 2024-08-07 Scania CV AB MULTI-CIRCUIT THERMAL MANAGEMENT SYSTEM INCLUDING MIXING LINES, AND VEHICLE
US12194832B2 (en) 2020-07-01 2025-01-14 Scania Cv Ab Multiple circuit thermal management system comprising mixing lines, and vehicle
WO2023117162A1 (de) * 2021-12-20 2023-06-29 Audi Ag Kühlmittelkreislauf für optimiertes thermomanagement für ein zumindest teilweise elektrisch angetriebenes kraftfahrzeug
WO2025108714A1 (de) * 2023-11-23 2025-05-30 Robert Bosch Gmbh Thermosystem für ein batteriebetriebenes fahrzeug und verfahren hierzu

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