WO2015155985A1 - Système de commande de température d'air d'admission - Google Patents

Système de commande de température d'air d'admission Download PDF

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Publication number
WO2015155985A1
WO2015155985A1 PCT/JP2015/001957 JP2015001957W WO2015155985A1 WO 2015155985 A1 WO2015155985 A1 WO 2015155985A1 JP 2015001957 W JP2015001957 W JP 2015001957W WO 2015155985 A1 WO2015155985 A1 WO 2015155985A1
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WIPO (PCT)
Prior art keywords
intake air
heat
cooling water
heat medium
temperature
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PCT/JP2015/001957
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English (en)
Japanese (ja)
Inventor
恒吏 高橋
梯　伸治
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株式会社デンソー
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Publication of WO2015155985A1 publication Critical patent/WO2015155985A1/fr

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    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
    • F02M31/10—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot liquids, e.g. lubricants or cooling water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
    • F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
    • F02M31/13—Combustion air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/20—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle

Definitions

  • the present disclosure relates to a system for controlling the temperature of intake air of an internal combustion engine.
  • Patent Document 1 describes a system for cooling and heating intake air of an internal combustion engine (engine) mounted on a vehicle. In this prior art, it is possible to switch between a state of cooling the intake air of the internal combustion engine and a state of heating.
  • the intake air of the internal combustion engine is cooled with the cooling water cooled by the radiator, and the intake air of the internal combustion engine is heated with the cooling water heated by the refrigerant of the refrigeration cycle.
  • a radiator is a heat exchanger which cools cooling water by heat exchange with outside air.
  • the radiator cools the cooling water by heat exchange with the outside air, the cooling water cannot be cooled to a lower temperature than the outside air. According to the study by the present inventors, in the above prior art, since the intake air of the internal combustion engine is cooled by the cooling water cooled by the radiator, the intake air of the internal combustion engine cannot be cooled to a lower temperature than the outside air. The cooling performance is limited.
  • An intake air temperature control system includes a heat medium cooler that cools the heat medium by exchanging heat between the low-pressure side refrigerant and the heat medium of the refrigeration cycle, and the high-pressure side refrigerant and the heat medium of the refrigeration cycle.
  • the heat medium heater that heat-exchanges the heat medium by exchanging heat, the heat medium cooled by the heat medium cooler, and the intake air sucked into the internal combustion engine are heat-exchanged, and the heat heated by the heat medium heater
  • An intake heat exchange device that exchanges heat between the medium and intake air taken into the internal combustion engine is provided.
  • the intake air can be cooled by the heat medium cooled by the low-pressure side refrigerant of the refrigeration cycle, the heat medium can be cooled to a lower temperature than the outside air, and thus the intake air can be cooled to a lower temperature than the outside air. Therefore, the cooling performance of intake air can be improved.
  • 1 is an overall configuration diagram of an intake air temperature control system in a first embodiment. It is a flowchart which shows the control processing which the control apparatus in 1st Embodiment performs. It is a flowchart which shows the control processing which the control apparatus in 1st Embodiment performs. It is a whole block diagram of the intake air temperature control system in 2nd Embodiment. It is a whole block diagram of the intake air temperature control system in 3rd Embodiment. It is a whole block diagram of the intake air temperature control system in 4th Embodiment. It is a whole block diagram of the intake air temperature control system in 5th Embodiment. It is a whole block diagram of the intake air temperature control system in 6th Embodiment.
  • An intake air temperature control system 10 shown in FIG. 1 controls the temperature of intake air of an engine (internal combustion engine) mounted on a vehicle.
  • the intake air temperature control system 10 includes a low temperature side pump 11, a high temperature side pump 12, a radiator 13, a cooling water cooler 14, a cooling water heater 15, an intake air cooling heat exchanger 16, and an intake air heating heat exchanger 17. Yes.
  • the low temperature side pump 11, the cooling water cooler 14, and the intake air heat exchanger 16 are arranged in the low temperature side cooling water circuit C1.
  • the high temperature side pump 12, the radiator 13, the cooling water heater 15 and the heat exchanger 17 for intake air heating are arranged in the high temperature side cooling water circuit C2.
  • the low temperature side pump 11 and the high temperature side pump 12 are electric pumps that suck and discharge cooling water (heat medium).
  • 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 low temperature side pump 11 sucks and discharges the cooling water of the low temperature side cooling water circuit C1.
  • the high temperature side pump 12 sucks and discharges the cooling water of the high temperature side cooling water circuit C2.
  • the radiator 13, the cooling water cooler 14, the cooling water heater 15, the intake air cooling heat exchanger 16 and the intake air heating heat exchanger 17 are cooling water circulation devices (heat medium circulation devices) through which the cooling water flows.
  • the radiator 13 is a heat exchanger (heat medium outside air heat exchanger) that exchanges heat between cooling water and outside air (air outside the passenger compartment).
  • heat medium outside air heat exchanger heat exchanger
  • the radiator 13 functions as a radiator that radiates the heat of the cooling water to the outside air. Therefore, the radiator 13 can cool the cooling water to a temperature equivalent to the outside air.
  • the outside air is blown to the radiator 13 by the outdoor blower 18.
  • the outdoor blower 18 is an outside air blower that blows outside air to the radiator 13, and includes an electric blower.
  • the outdoor blower 18 is an outside air flow rate adjusting unit that adjusts the flow rate of outside air flowing through the radiator 13. That is, the flow rate of the outside air flowing through the radiator 13 can be adjusted by adjusting the rotational speed of the outdoor blower 18.
  • the cooling water cooler 14 is a cooling device (heat medium cooler) that cools the cooling water in the low temperature side cooling water circuit C1. Specifically, the cooling water cooler 14 cools the cooling water of the low temperature side cooling water circuit C1 by exchanging heat between the low pressure side refrigerant of the refrigeration cycle 20 and the cooling water of the low temperature side cooling water circuit C1. It is a heat exchanger.
  • the cooling water heater 15 is a heating device (heat medium heater) for heating the cooling water of the high temperature side cooling water circuit C2. Specifically, the cooling water heater 15 heats the cooling water of the high temperature side cooling water circuit C2 by exchanging heat between the high pressure side refrigerant of the refrigeration cycle 20 and the cooling water of the high temperature side cooling water circuit C2. It is a heat exchanger.
  • the refrigeration cycle 20 is a vapor compression refrigerator that includes a compressor 21, a cooling water heater 15, an expansion valve 22, and a cooling water cooler 14.
  • 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 21 is an electric compressor driven by electric power, and sucks, compresses and discharges the refrigerant of the refrigeration cycle 20.
  • the compressor 21 is a refrigerant flow rate adjusting unit that adjusts the flow rate of the refrigerant circulating in the refrigeration cycle 20. That is, the flow rate of the refrigerant circulating in the refrigeration cycle 20 can be adjusted by adjusting the rotation speed of the compressor 21.
  • 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 21 and the cooling water.
  • the expansion valve 22 is a decompression device that decompresses and expands the liquid-phase refrigerant that has flowed out of the cooling water heater 15.
  • 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 22 and the cooling water.
  • the gas-phase refrigerant evaporated in the cooling water cooler 14 is sucked into the compressor 21 and compressed.
  • the cooling water cooler 14 can cool the cooling water to a temperature lower than the outside air.
  • the intake air cooling heat exchanger 16 and the intake air heat exchanger 17 are intake air heat exchange devices (intake heat medium heat exchangers) that exchange heat between the cooling water and the intake air.
  • the intake air cooling heat exchanger 16 is an intake air cooler that cools intake air by exchanging heat between the intake air of the engine 25 and the cooling water of the low-temperature side cooling water circuit C1.
  • the intake air heat exchanger 17 is an intake air heater that heats intake air by exchanging heat between the intake air of the engine 25 and the cooling water of the high-temperature side cooling water circuit C2.
  • the intake air cooling heat exchanger 16 and the intake air heat exchanger 17 are arranged in an intake passage formed inside the intake pipe 30.
  • the intake air cooling heat exchanger 16 and the intake air heating heat exchanger 17 are arranged in parallel to the flow of intake air.
  • the intake pipe 30 is connected to the intake port of the engine 25.
  • a turbocharger compressor 31, an intake air temperature control door 32, and a throttle valve 33 are arranged in the intake passage inside the intake pipe 30.
  • the supercharger is a turbocharger that includes a turbine 34 and a compressor 31.
  • the intake air temperature control door 32 adjusts the area ratio between the intake passage on the intake air cooling heat exchanger 16 side and the intake passage on the intake air heat exchanger 17 side.
  • the intake air temperature control door 32 is an intake air flow rate adjustment unit that adjusts the flow rate of intake air that passes through the intake air cooling heat exchanger 16 and intake air that passes through the intake air heat exchanger 17.
  • the intake air temperature control door 32 is an intake air temperature control unit that controls the temperature of the intake air taken into the combustion chamber 25a of the engine 25.
  • the intake air temperature control door 32 is driven by a door drive actuator 36.
  • the door drive actuator 36 is constituted by an electric actuator.
  • the throttle valve 33 is an intake air amount control unit that controls the amount of intake air taken into the combustion chamber 25a of the engine 25.
  • the turbocharger turbine 34 is disposed in an exhaust passage formed inside the exhaust pipe 35.
  • the exhaust pipe 35 is connected to the exhaust port of the engine 25.
  • the turbine 34 is driven by the exhaust gas of the engine 25.
  • the turbine 31 is connected to the compressor 31.
  • the compressor 31 is driven in conjunction with the intake air to pressurize.
  • the intake valve 25b and the exhaust valve 25b of the engine 25 are driven in conjunction with the piston 25d of the engine 25.
  • intake valve 25b of the engine 25 When the intake valve 25b of the engine 25 is opened, intake air is taken into the combustion chamber 25a.
  • exhaust valve 25b of the engine 25 When the exhaust valve 25b of the engine 25 is opened, exhaust gas is discharged from the combustion chamber 25a.
  • the control device 50 is composed of a well-known microcomputer including a CPU, ROM, RAM and the like and its peripheral circuits, performs various calculations and processing based on a control program stored in the ROM, and is connected to the output side thereof. It is a control part which controls operation of various control object equipment.
  • the low temperature side pump 11, the high temperature side pump 12, the outdoor blower 18, the compressor 21, the door drive actuator 36, and the like are connected to the output side of the control device 50.
  • the control device 50, the compressor 21, the intake air temperature control door 32, and the door drive actuator 36 are heat exchanges that control the heat exchange amount in the intake air cooling heat exchanger 16 and the heat exchange amount in the intake air heat exchanger 17.
  • the quantity control unit is configured.
  • the control device 50 is configured such that a control unit (hardware and software) that controls various devices to be controlled connected to the output side is integrally configured. Each control unit that controls various devices to be controlled may be configured separately from the control device 50.
  • Detecting signals of sensor groups such as the low temperature side cooling water temperature sensor 51, the high temperature side cooling water temperature sensor 52, and the intake air temperature sensor 53 are input to the input side of the control device 50.
  • the low temperature side cooling water temperature sensor 51 is a cooling water temperature detector (heat medium temperature) that detects the temperature of the cooling water flowing through the low temperature side cooling water circuit C1 (for example, the temperature of the cooling water flowing out of the intake air cooling heat exchanger 16). Detector).
  • the high temperature side cooling water temperature sensor 52 detects the temperature of the cooling water flowing through the high temperature side cooling water circuit C2 (for example, the temperature of the cooling water flowing out of the intake air heating heat exchanger 17) (heat medium temperature). Detector).
  • the intake air temperature sensor 53 is an intake air temperature detector that detects the temperature of the intake air flowing through the intake passage in the intake pipe 30 (for example, the temperature of the intake air flowing out from the intake air cooling heat exchanger 16 and the intake air heating heat exchanger 17). .
  • the temperature of the cooling water flowing through the low temperature side cooling water circuit C1, the temperature of the cooling water flowing through the high temperature side cooling water circuit C2, and the intake air temperature may be estimated based on detected values of various physical quantities.
  • the low temperature side cooling water temperature may be estimated based on the detected value of the refrigerant pressure in the cooling water cooler 14.
  • the high temperature side cooling water temperature may be estimated based on the detected value of the refrigerant pressure in the cooling water heater 14.
  • the intake air temperature may be estimated based on the temperature of the cooling water flowing through the low temperature side cooling water circuit C1, the temperature of the cooling water flowing through the high temperature side cooling water circuit C2, and the opening of the intake air temperature control door 32. Good.
  • the engine control device is an engine control unit that controls the operation of the engine 25.
  • Examples of various signals input from the engine control device to the control device 50 include a signal indicating the degree of engine load and a signal indicating the temperature of engine cooling water.
  • the engine load is calculated based on information related to the operating state such as the engine speed and the air intake amount.
  • the control device 50 operates the low temperature side pump 11, the high temperature side pump 12, and the compressor 21, the cooling water of the low temperature side cooling water circuit C1 is cooled by the cooling water cooler 14, and the high temperature side cooling water circuit C2 is cooled. Water is heated by the cooling water heater 15.
  • the cooling water cooled by the cooling water cooler 14 flows through the intake air cooling heat exchanger 16 to cool the intake air.
  • the intake water is heated by the cooling water heated by the cooling water heater 15 flowing through the intake air heating heat exchanger 17.
  • the intake air temperature control door 32 adjusts the area ratio between the intake air passage on the intake air cooling heat exchanger 16 side and the intake air passage on the intake air heat exchanger 17 side, so that the intake air passing through the intake air cooling heat exchanger 16 is adjusted. And the flow rate ratio of the intake air passing through the intake air heating heat exchanger 17 is adjusted.
  • the heat exchange amount in the intake air cooling heat exchanger 16 and the heat exchange amount in the intake air heat exchanger 17 are adjusted, so that the temperature of the intake air drawn into the combustion chamber 25a of the engine 25 can be set to a desired value. Adjusted to temperature.
  • control processing executed by the control device 50 This control process is executed when the ignition switch of the vehicle is turned on.
  • step S ⁇ b> 100 input signals from various sensors, an engine control device, and the like are input to the control device 50. Specifically, the intake air temperature, the engine cooling water temperature, the engine load, the temperature of the cooling water flowing through the low temperature side cooling water circuit C1 (hereinafter referred to as the low temperature side cooling water temperature), and the cooling flowing through the high temperature side cooling water circuit C2.
  • the temperature of water hereinafter referred to as the high temperature side cooling water temperature
  • the target intake air temperature is determined. Specifically, the target intake air temperature is determined based on the intake air temperature, the engine coolant temperature, the engine load, and the like. For example, the target intake air temperature is determined to be smaller as the engine load is higher, and the target intake air temperature is determined to be higher as the engine coolant temperature is lower.
  • step S120 it is determined whether the target intake air temperature is higher than the actual intake air temperature.
  • the process proceeds to step S130, and the opening degree of the intake air temperature control door 32 is determined. Specifically, an intake passage on the intake air cooling heat exchanger 16 side (hereinafter referred to as a cooling side intake passage) is opened and an intake passage on the intake air heat exchanger 17 side (hereinafter referred to as a heating side intake passage). .) Is determined to be the door opening degree.
  • step S140 the opening degree of the intake air temperature control door 32 is determined. Specifically, the opening degree of the door is determined to open the cooling side intake passage and close the heating side intake passage.
  • This control process allows the intake air to be cooled when the engine is heavily loaded, thus increasing the intake air volume and increasing the output. At this time, since the intake air is cooled by the cooling water cooled by the low-pressure side refrigerant in the refrigeration cycle, the intake air can be cooled to a temperature lower than the outside air temperature. Therefore, it is possible to further increase the output by further increasing the intake air amount.
  • the intake air can be heated when the engine is warmed up (when the engine coolant temperature is low), thereby stabilizing the combustion in the engine 25 and suppressing the deterioration of emissions (increase in HC, increase in NOx, etc.). it can. Further, since the intake air is heated when the engine is under a low load, fuel efficiency can be improved.
  • step S ⁇ b> 200 input signals from various sensors are input to the control device 50. Specifically, the intake air temperature, the engine coolant temperature, the engine load, the low temperature side coolant temperature, the high temperature side coolant temperature, the rotational speed of the compressor 21 and the like are input.
  • step S210 it is determined whether or not the engine 25 is in a warm-up state. Specifically, it is determined whether or not the engine 25 is in a warm-up state by comparing the engine coolant temperature with a warm-up determination value.
  • the warm-up determination value is a predetermined set value stored in advance in the control device 50.
  • step S220 When it is determined that the engine coolant temperature is not higher than the warm-up determination value, that is, when it is determined that the engine 25 is in the warm-up state, the process proceeds to step S220, and the target temperature Twho for the high-temperature side coolant is determined.
  • the target temperature Twho of the high temperature side coolant is determined.
  • step S230 the rotational speed of the compressor 21 is determined based on the amount of deviation between the target temperature Ttwo of the high temperature side cooling water and the actual high temperature side cooling water temperature.
  • step 210 when it is determined in step 210 that the engine coolant temperature is higher than the warm-up determination value, that is, when it is determined that the engine 25 is not in the warm-up state, the process proceeds to step S240, and whether or not the engine 25 is in the high load state. Determine whether.
  • the load determination value is a predetermined set value stored in advance in the control device 50.
  • the process proceeds to step S260, and the target temperature Twco of the low-temperature side cooling water is determined.
  • the target temperature Twco of the low-temperature side cooling water is determined based on information such as the intake air temperature, the target intake air temperature, the engine coolant temperature, and the engine load.
  • step S230 the rotational speed of the compressor 21 is determined based on the amount of deviation between the target temperature Twco of the low-temperature side cooling water and the actual low-temperature side cooling water temperature.
  • step S240 when it is determined in step S240 that the engine load is smaller than the load determination value, that is, when it is determined that the engine 25 is not in a high load state, the process proceeds to steps S220 and S230 to determine the target temperature Twho for the high-temperature side cooling water.
  • the rotation speed of the compressor 21 is determined based on the amount of deviation between the target temperature Ttwo of the high temperature side cooling water and the actual high temperature side cooling water temperature.
  • the intake air can be appropriately heated by appropriately controlling the high-temperature side coolant temperature during warm-up and when the engine is under low load. Further, the intake air can be appropriately cooled by appropriately controlling the temperature of the low-temperature side cooling water at the time of high engine load.
  • the intake air cooling heat exchanger 16 and the intake air heating heat exchanger 17 exchange heat between the cooling water cooled by the cooling water cooler 14 and the intake air sucked into the engine 25, and cooling the cooling water. Heat is exchanged between the cooling water heated by the water heater 15 and the intake air.
  • the intake air can be cooled with the cooling water cooled by the low-pressure side refrigerant of the refrigeration cycle 20, the cooling water can be cooled to a lower temperature than the outside air, and thus the intake air can be cooled to a lower temperature than the outside air. Therefore, the cooling performance of intake air can be improved.
  • the intake air temperature control door 32 and the control device 50 include the temperature of the cooling water cooled by the cooling water cooler 14, the temperature of the cooling water cooled by the cooling water heater 15, and the temperature of the intake air. Based on the above, the heat exchange amount in the intake air heat exchanger 16 and the intake air heat exchanger 17 is controlled.
  • the intake air can be cooled and heated to an appropriate temperature by the intake air cooling heat exchanger 16 and the intake air heating heat exchanger 17.
  • heat exchange between the cooling water cooled by the cooling water cooler 14 and the intake air and the intake water cooling heat exchanger 16 and the cooling water heated by the cooling water heater 15 and the intake air are performed.
  • a heat exchanger 17 for intake air heating is performed.
  • the cooling water cooled by the cooling water cooler 14 and the cooling water heated by the cooling water heater 15 are switched and supplied to one heat exchanger to cool and heat the intake air.
  • the control response of intake air cooling / heating can be improved. Therefore, the temperature control response of the intake air can be improved.
  • the intake air temperature control door 32 constitutes an intake air flow rate adjusting unit that adjusts the flow rate ratio between the intake air flowing through the intake air cooling heat exchanger 16 and the intake air flowing through the intake air heat exchanger 17. Yes.
  • the temperature of the intake air can be reliably controlled.
  • the intake air cooling heat exchanger 16 and the intake air heating heat exchanger 17 are arranged in parallel with each other with respect to the flow of intake air. As a result, the temperature of the intake air can be reliably controlled.
  • the compressor 21 constitutes a refrigerant flow rate adjusting unit that adjusts the flow rate of the refrigerant circulating in the refrigeration cycle 20.
  • the temperature of the cooling water cooled by the cooling water cooler 14 and the temperature of the cooling water heated by the cooling water heater 15 can be controlled, so that the heat exchange amount in the intake air cooling heat exchanger 16 and the intake air
  • the amount of heat exchange in the heating heat exchanger 17 can be controlled, and consequently the temperature of the intake air can be controlled.
  • the intake air cooling heat exchanger 16 and the intake air heat exchanger 17 are arranged in parallel to the flow of intake air.
  • the intake air cooling heat exchanger 16 and the intake air heating heat exchanger 17 are arranged in series with respect to the flow of intake air.
  • the intake air heat exchanger 16 is arranged on the upstream side of the intake air flow, and the intake air heat exchanger 17 is arranged on the downstream side of the intake air flow. .
  • the bypass passage 30 a is formed in the intake passage inside the intake pipe 30.
  • the bypass passage 30a is a passage through which intake air flows bypassing the intake-air heating heat exchanger 17.
  • the intake air temperature control door 32 is disposed between the intake air cooling heat exchanger 16 and the intake air heating heat exchanger 17.
  • the intake air temperature control door 32 adjusts the flow rate ratio between the intake air that flows into the intake air heating heat exchanger 17 and the intake air that flows into the bypass passage 30a. Thereby, the temperature of the intake air taken into the combustion chamber 25a of the engine 25 can be controlled.
  • the temperature of the intake air is controlled by the intake air temperature control door 32.
  • the intake air temperature control door 32 is not provided as shown in FIG.
  • the intake air temperature is controlled by the side pump 11, the high temperature side pump 12 and the outdoor blower 18.
  • the rotation speed (refrigerant discharge capacity) of the compressor 21 By controlling the rotation speed (refrigerant discharge capacity) of the compressor 21, the cooling temperature of the low-temperature side cooling water in the cooling water cooler 14 and the heating temperature of the high-temperature side cooling water in the cooling water heater 15 are controlled. As a result, the heat exchange amount of the intake air cooling heat exchanger 16 and the heat exchange amount of the intake air heating heat exchanger 17 are controlled, so that the temperature of the intake air is controlled.
  • the rotation speed (cooling water discharge capacity) of the low temperature side pump 11 By controlling the rotation speed (cooling water discharge capacity) of the low temperature side pump 11, the flow rate of the low temperature side cooling water flowing through the intake air cooling heat exchanger 16 is controlled. As a result, the amount of heat exchange in the intake air cooling heat exchanger 16 is controlled, so that the temperature of the intake air is controlled.
  • the rotation speed (cooling water discharge capacity) of the high temperature side pump 12 By controlling the rotation speed (cooling water discharge capacity) of the high temperature side pump 12, the flow rate of the high temperature side cooling water flowing through the heat exchanger 17 for intake air heating is controlled. As a result, the heat exchange amount of the heat exchanger 17 for intake air heating is controlled, so that the temperature of the intake air is controlled.
  • the flow rate of the outside air flowing through the radiator 13 is controlled by controlling the rotation speed (outside air blowing capacity) of the outdoor blower 18. As a result, since the amount of heat exchange of the radiator 13 is controlled, the temperature of the high-temperature side cooling water is controlled, and consequently the temperature of the intake air is controlled.
  • the low temperature side pump 11, the compressor 21, and the control device 50 constitute a heat exchange amount control unit that controls the heat exchange amount in the intake air cooling heat exchanger 16. Further, the high temperature side pump 12, the outdoor fan 18, the compressor 21, and the control device 50 constitute a heat exchange amount control unit that controls the heat exchange amount in the heat exchanger 17 for intake air heating.
  • the low temperature side pump 11 is a cooling water flow rate adjusting unit (heat medium flow rate adjusting unit) that adjusts the flow rate of cooling water that is cooled by the cooling water cooler 14 and flows through the intake air cooling heat exchanger 16.
  • the high temperature side pump 12 is a cooling water flow rate adjustment unit (heat medium flow rate adjustment unit) that adjusts the flow rate of the cooling water that is heated by the cooling water heater 15 and flows through the heat exchanger 17 for intake air heating.
  • the low temperature side pump 11 adjusts the flow rate of the cooling water that is cooled by the cooling water cooler 14 and flows through the intake air cooling heat exchanger 16. Thereby, since the heat exchange amount in the heat exchanger 16 for intake air cooling can be controlled, the cooling temperature of intake air can be controlled.
  • the high temperature side pump 12 adjusts the flow rate of the cooling water which is heated by the cooling water heater 15 and flows through the heat exchanger 17 for intake air heating. Thereby, since the heat exchange amount in the heat exchanger 17 for intake air heating can be controlled, the heating temperature of the intake air can be controlled.
  • the outdoor blower 18 adjusts the flow rate of the outside air flowing through the radiator 13. Thereby, since the temperature of the high temperature side cooling water can be controlled, the heat exchange amount in the heat exchanger 17 for intake air heating can be controlled, and consequently the heating temperature of the intake air can be controlled.
  • the intake air temperature control system 10 in this embodiment includes a cooler core 60, a heater core 61, a temperature adjustment target device 62, a first switching valve 63, and a second switching valve 64.
  • the cooler core 60 is an air cooling heat exchanger (air cooler) that cools the air blown into the vehicle interior by exchanging heat between the cooling water and the air blown into the vehicle interior.
  • the heater core 61 is an air heating heat exchanger (air heater) that heats the air blown into the vehicle interior by exchanging heat between the air blown into the vehicle interior and the cooling water.
  • the cooler core 60 and the heater core 61 are blown with the inside air (vehicle interior air), the outside air (vehicle interior air), or the mixed air of the inside air and the outside air by an indoor blower (not shown).
  • the cooler core 60, the heater core 61, and the indoor fan are accommodated in a casing (not shown) of an indoor air conditioning unit of the vehicle air conditioner.
  • the indoor air conditioning unit is disposed inside the instrument panel (instrument panel) at the forefront of the vehicle interior.
  • the casing forms the outer shell of the indoor air conditioning unit.
  • the casing forms an air passage for blown air to be blown into the passenger compartment, and is formed of a resin (for example, polypropylene) having a certain degree of elasticity and excellent strength.
  • a resin for example, polypropylene
  • An inside / outside air switching device (not shown) is arranged on the most upstream side of the air flow inside the casing.
  • the inside / outside air switching device is an inside / outside air introduction unit that switches and introduces inside air and outside air into the casing.
  • the temperature adjustment target device 62 is a heat transfer device that has a flow path through which the cooling water flows and that transfers heat to and from the cooling water.
  • Examples of the temperature adjustment target device 62 include an inverter, a battery, a battery temperature control heat exchanger, a traveling electric motor, an engine device, a cold storage heat body, a ventilation heat recovery heat exchanger, a cooling water cooling water heat exchanger, and the like. It is done.
  • An inverter is a power conversion device that converts DC power supplied from a battery into AC voltage and outputs the AC voltage to a traveling electric motor.
  • the battery temperature control heat exchanger is a heat exchanger (air heat medium heat exchanger) that is arranged in a blowing path to the battery and exchanges heat between the blown air and cooling water.
  • Engine devices include turbochargers, EGR coolers, CVT warmers, CVT coolers, oil heat exchangers, exhaust heat recovery devices, and the like.
  • the EGR cooler is an exhaust cooling water heat exchanger (exhaust heat medium heat exchanger) that cools exhaust gas by exchanging heat between engine exhaust gas (exhaust gas) returned to the intake side of the engine and cooling water.
  • CVT warmer is a lubricating oil cooling water heat exchanger (lubricating oil heat medium heat exchanger) that heats CVT oil by exchanging heat between lubricating oil (CVT oil) that lubricates CVT (continuously variable transmission) and cooling water. It is.
  • the CVT cooler is a lubricating oil cooling water heat exchanger (lubricating oil heat medium heat exchanger) that cools the CVT oil by exchanging heat between the CVT oil and the cooling water.
  • lubricating oil cooling water heat exchanger lubricating oil heat medium heat exchanger
  • Oil heat exchanger is a heat exchanger that adjusts the temperature of oil by exchanging heat between engine oil or transmission oil and cooling water.
  • the exhaust heat recovery unit is an exhaust cooling water heat exchanger (exhaust heat medium heat exchanger) that exchanges heat between the exhaust and the cooling water to absorb the heat of the exhaust into the cooling water.
  • exhaust cooling water heat exchanger exhaust heat medium heat exchanger
  • the cold storage heat storage body stores the heat or cold energy of the cooling water.
  • Examples of the cold storage body include a chemical heat storage material, a heat retaining tank, a latent heat storage body (paraffin or hydrate-based substance), and the like.
  • the ventilation heat recovery heat exchanger is a heat exchanger that recovers the heat (cold or hot) that is thrown out by ventilation.
  • a ventilation heat recovery heat exchanger recovers heat (cold heat or hot heat) that is thrown out by ventilation, thereby reducing power required for air conditioning.
  • the cooling water cooling water heat exchanger is a heat exchanger that exchanges heat between cooling water and cooling water.
  • a cooling water cooling water heat exchanger exchanges heat between low temperature side cooling water or high temperature side cooling water and cooling water of an engine cooling circuit (a circuit in which cooling water for engine cooling circulates). Heat can be exchanged with the circuit.
  • the low temperature side pump 11 is disposed in the low temperature side pump flow path 71.
  • a cooling water cooler 14 is disposed on the cooling water discharge side of the low temperature side pump 11 in the low temperature side pump flow path 71.
  • the high temperature side pump 12 is disposed in the high temperature side pump flow path 72.
  • a cooling water heater 15 is disposed on the high temperature side pump flow path 72 on the cooling water discharge side of the high temperature side pump 12.
  • the radiator 13 is disposed in the radiator flow path 73.
  • the intake air cooling heat exchanger 16 is disposed in the intake air cooling channel 74.
  • the intake air heat exchanger 17 is disposed in the intake air heating channel 75.
  • the cooler core 60 is disposed in the cooler core flow path 76.
  • the heater core 61 is disposed in the heater core flow path 77.
  • the temperature adjustment target device 62 is disposed in the device flow path 78.
  • Low-temperature side pump flow path 71 Low-temperature side pump flow path 71, high-temperature side pump flow path 72, radiator flow path 73, intake air cooling flow path 74, intake air heating flow path 75, cooler core flow path 76, heater core flow path 77, and equipment
  • the flow path 78 is connected to the first switching valve 63 and the second switching valve 64.
  • the first switching valve 63 and the second switching valve 64 are switching devices (heat medium flow switching devices) that switch the flow of cooling water.
  • the first switching valve 63 is a multi-way valve having a large number of ports (first switching valve ports) constituting the inlet or outlet of the cooling water. Specifically, the first switching valve 63 has a first inlet 63a and a second inlet 63b as cooling water inlets, and first to sixth outlets 63c to 63h as cooling water outlets.
  • the second switching valve 64 is a multi-way valve having a large number of ports (second switching valve ports) constituting the inlet or outlet of the cooling water. Specifically, the second switching valve 64 has a first outlet 64a and a second outlet 64b as cooling water outlets, and first to sixth inlets 64c to 64h as cooling water inlets.
  • One end of a low-temperature pump flow path 71 is connected to the first inlet 63a of the first switching valve 63.
  • the cooling water outlet side of the cooling water cooler 14 is connected to the first inlet 63 a of the first switching valve 63.
  • One end of a high-temperature pump flow path 72 is connected to the second inlet 63 b of the first switching valve 63.
  • the cooling water outlet side of the cooling water heater 15 is connected to the second inlet 63 b of the first switching valve 63.
  • One end of a radiator flow path 73 is connected to the first outlet 63 c of the first switching valve 63.
  • the cooling water inlet side of the radiator 13 is connected to the first outlet 63 c of the first switching valve 63.
  • One end of an intake cooling flow path 74 is connected to the second outlet 63d of the first switching valve 63.
  • the cooling water inlet side of the intake air cooling heat exchanger 16 is connected to the second outlet 63 d of the first switching valve 63.
  • One end of the intake air heating flow path 75 is connected to the third outlet 63e of the first switching valve 63.
  • the cooling water inlet side of the intake air heat exchanger 17 is connected to the third outlet 63e of the first switching valve 63.
  • One end of a cooler core flow path 76 is connected to the fourth outlet 63f of the first switching valve 63.
  • the coolant outlet side of the cooler core 60 is connected to the fourth outlet 63 f of the first switching valve 63.
  • One end of a heater core channel 77 is connected to the fifth outlet 63g of the first switching valve 63.
  • the coolant outlet side of the heater core 61 is connected to the fifth outlet 63g of the first switching valve 63.
  • One end of a device flow path 78 is connected to the sixth outlet 63h of the first switching valve 63.
  • the cooling water inlet side of the temperature adjustment target device 62 is connected to the sixth outlet 63 h of the first switching valve 63.
  • the other end of the low temperature side pump flow path 71 is connected to the first outlet 64 a of the second switching valve 64.
  • the cooling water suction side of the low temperature side pump 11 is connected to the first outlet 64 a of the second switching valve 64.
  • the other end of the high-temperature pump flow path 72 is connected to the second outlet 64b of the second switching valve 64.
  • the cooling water suction side of the high temperature side pump 12 is connected to the second outlet 64 b of the second switching valve 64.
  • the other end of the radiator flow path 73 is connected to the first inlet 64c of the second switching valve 64.
  • the cooling water outlet side of the radiator 13 is connected to the first inlet 64 c of the second switching valve 64.
  • the other end of the intake cooling flow path 74 is connected to the second inlet 64d of the second switching valve 64.
  • the cooling water outlet side of the intake air cooling heat exchanger 16 is connected to the second inlet 64 d of the second switching valve 64.
  • the other end of the intake heating flow path 75 is connected to the third inlet 64e of the second switching valve 64.
  • the cooling water outlet side of the intake air heating heat exchanger 17 is connected to the third inlet 64 e of the second switching valve 64.
  • the other end of the cooler core flow path 76 is connected to the fourth inlet 64f of the second switching valve 64.
  • the cooling water outlet side of the cooler core 60 is connected to the fourth inlet 64 f of the second switching valve 64.
  • the other end of the heater core channel 77 is connected to the fifth inlet 64g of the second switching valve 64.
  • the coolant outlet side of the heater core 61 is connected to the fifth inlet 64 g of the second switching valve 64.
  • the other end of the device flow path 78 is connected to the sixth inlet 64h of the second switching valve 64.
  • the cooling water outlet side of the temperature adjustment target device 62 is connected to the sixth inlet 64 h of the second switching valve 64.
  • the first switching valve 63 has a structure capable of arbitrarily or selectively switching the communication state between the inlets 63a and 63b and the outlets 63c to 63h.
  • the second switching valve 64 also has a structure that can arbitrarily or selectively switch the communication state between the outlets 64a and 64b and the inlets 64c to 64h.
  • the first switching valve 63 is provided for each of the radiator 13, the intake air cooling heat exchanger 16, the intake air heating heat exchanger 17, the cooler core 60, the heater core 61, and the temperature adjustment target device 62.
  • the state in which the cooling water discharged from the refrigerant flows in, the state in which the cooling water discharged from the high temperature side pump 12 flows, the cooling water discharged from the low temperature side pump 11 and the cooling water discharged from the high temperature side pump 12 are Switch the state that does not flow.
  • the second switching valve 64 causes cooling water to flow out to the low temperature side pump 11 for each of the radiator 13, the intake air cooling heat exchanger 16, the intake air heat exchanger 17, the cooler core 60, the heater core 61, and the temperature adjustment target device 62.
  • the state in which the cooling water flows out to the high temperature side pump 12 and the state in which the cooling water does not flow out to the low temperature side pump 11 and the high temperature side pump 12 are switched.
  • the structure example of the first switching valve 63 and the second switching valve 64 will be briefly described.
  • the first switching valve 63 and the second switching valve 64 include a case forming an outer shell and a valve body accommodated in the case.
  • the cooling water inlet and outlet are formed at predetermined positions of the case, and the communication state between the cooling water inlet and outlet is changed by rotating the valve body.
  • valve body of the first switching valve 63 and the valve body of the second switching valve 64 are independently rotationally driven by separate electric motors.
  • the valve body of the first switching valve 63 and the valve body of the second switching valve 64 may be rotationally driven in conjunction with a common electric motor. The operation of this electric motor is controlled by the control device 50.
  • the first switching valve 63 may be composed of a plurality of valve bodies.
  • the second switching valve 64 may be composed of a plurality of valve bodies.
  • the valve body of the first switching valve 63 and the valve body of the second switching valve 64 may be mechanically connected.
  • the valve body of the first switching valve 63 and the valve body of the second switching valve 64 may be integrally formed.
  • control device 50 controls the operation of the switching valve electric motor or the like, the valve bodies of the first switching valve 63 and the second switching valve 64 are rotated and switched to various operation modes.
  • At least one of the radiator flow path 73, the intake air cooling flow path 74, the intake air heating flow path 75, the cooler core flow path 76, the heater core flow path 77, and the equipment flow path 78, and the low temperature side A low-temperature side cooling water circuit C1 is formed by the pump flow path 71.
  • At least one of the radiator flow path 73, the intake air cooling flow path 74, the intake air heating flow path 75, the cooler core flow path 76, the heater core flow path 77, and the equipment flow path 78, and the high temperature side A high-temperature side cooling water circuit C2 is formed by the pump flow path 72.
  • Each of the radiator flow path 73, the intake air cooling flow path 74, the intake air heating flow path 75, the cooler core flow path 76, the heater core flow path 77, and the equipment flow path 78 is connected to the low temperature side cooling water circuit C1. And switching to the high temperature side cooling water circuit C2 depending on the situation, the radiator 13, the intake air cooling heat exchanger 16, the intake air heating heat exchanger 17, the cooler core 60, the heater core 61, and The temperature adjustment target device 62 can be adjusted to an appropriate temperature according to the situation.
  • the heat pump operation of the refrigeration cycle 22 can be performed. That is, since the cooling water cooled by the cooling water cooler 14 flows through the radiator 13, 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 22 by the cooling water cooler 14 to dissipate heat. Therefore, in the cooling water cooler 14, the refrigerant of the refrigeration cycle 22 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 exchanges heat with the cooling water in the high-temperature side cooling water circuit C2 in the cooling water heater 15 to radiate heat. Therefore, it is possible to realize a heat pump operation that pumps up the heat of the outside air.
  • the intake air is heated by the heat exchanger 17 for intake air heating, or the vehicle interior is moved by the heater core 61.
  • the air can be heated.
  • the cooling water cooler 14 can absorb the refrigerant from the cooling water and cool the cooling water, so that the intake air is cooled by the intake air cooling heat exchanger 16 or the air blown into the vehicle interior is cooled by the cooler core 60. You can.
  • the temperature adjustment target device 62 When the temperature adjustment target device 62 is connected to the low temperature side cooling water circuit C1, the temperature adjustment target device 62 can be cooled by the cooling water cooled by the cooling water cooler 14. When the temperature adjustment object apparatus 62 is connected to the high temperature side cooling water circuit C2, the temperature adjustment object apparatus 62 can be heated by the cooling water heated by the cooling water heater 15.
  • At least one switching valve of the first switching valve 63 and the second switching valve 64 is a cooling water flow rate adjusting unit (heat) that adjusts the flow rate of the low-temperature side cooling water flowing through the intake-air cooling heat exchanger 16.
  • heat cooling water flow rate adjusting unit
  • Heat exchange of the intake air heat exchanger 16 is achieved by controlling at least one of the first change valve 63 and the second change valve 64 the flow rate of the low-temperature side cooling water flowing through the intake air heat exchanger 16. Since the amount is controlled, the temperature of the intake air is controlled.
  • At least one switching valve of the first switching valve 63 and the second switching valve 64 constitutes a heat exchange amount control unit that controls the heat exchange amount in the intake air cooling heat exchanger 16.
  • At least one switching valve of the first switching valve 63 and the second switching valve 64 is a cooling water flow rate adjusting unit (heat) that adjusts the flow rate of the high-temperature side cooling water flowing through the intake air heat exchanger 17.
  • heat cooling water flow rate adjusting unit
  • Heat exchange of the intake air heat exchanger 17 is achieved by controlling at least one of the first change valve 63 and the second change valve 64 the flow rate of the high-temperature side cooling water flowing through the intake air heat exchanger 17. Since the amount is controlled, the temperature of the intake air is controlled.
  • At least one switching valve of the first switching valve 63 and the second switching valve 64 constitutes a heat exchange amount control unit that controls the heat exchange amount in the heat exchanger 17 for intake air heating.
  • the intake air temperature control system 10 includes an engine cooling water heat exchanger 65, and can heat the cooling water with waste heat of the engine 25.
  • the engine coolant heat exchanger 65 is disposed in the engine coolant heat exchanger flow path 79.
  • the engine coolant heat exchanger flow path 79 is connected to the coolant outlet 63 i of the first switching valve 63 and the coolant inlet 64 i of the second switching valve 64.
  • the engine coolant heat exchanger 65 is a heat exchanger that exchanges heat between the coolant flowing through the engine coolant heat exchanger flow path 79 and the engine coolant circulating in the engine cooling circuit C3.
  • the waste heat of the engine 25 can be pumped by the heat pump operation of the refrigeration cycle 22 to heat the high temperature side cooling water.
  • the low temperature side cooling water flows to the engine cooling water heat exchanger 65, the low temperature side cooling water exchanges heat with the engine cooling water heated by the waste heat of the engine 25 to heat the low temperature side cooling water.
  • the refrigerant absorbs heat from the low temperature side cooling water in the cooling water cooler 14.
  • the refrigerant that has absorbed heat from the low-temperature side cooling water in the cooling water cooler 14 radiates heat by exchanging heat with the high-temperature side cooling water in the cooling water heater 15.
  • the intake air heating capacity in the intake air heating heat exchanger 17 and the blown air to the passenger compartment in the heater core 61 can be reduced. Heating capacity can be improved.
  • the cooling water is heated using the engine 25 as a heat source, but the cooling water may be heated using a heat-generating device such as an inverter as a heat source.
  • the high-temperature side cooling water is heated by pumping up the waste heat of the engine 25 by the heat pump operation of the refrigeration cycle 22, but in this embodiment, as shown in FIG. It transmits to the high temperature side cooling water without going through the refrigeration cycle 22 to heat the high temperature side cooling water.
  • the engine cooling circuit C3 is connected to the intake air heating flow path 75.
  • a three-way valve 66 is disposed at the connection between the engine cooling circuit C3 and the intake air heating flow path 75. The three-way valve 66 switches between a state where the engine cooling water of the engine cooling circuit C3 flows through the intake air heat exchanger 17 and a state where it does not flow.
  • the engine cooling water in the engine cooling circuit C3 flows through the heat exchanger 17 for intake air heating. Switch to state.
  • the high-temperature side cooling water circulates between the intake air heating heat exchanger 17 and the engine 25, so that the cooling water heated by the waste heat of the engine 25 flows through the intake air heating heat exchanger 17 and the intake air flows. Heated.
  • the higher temperature side cooling water having a higher temperature can be supplied to the heat exchanger 17 for intake air heating, the heating capacity of the intake air in the heat exchanger 17 for intake air heating can be improved.
  • the engine cooling circuit C3 is directly connected to the intake air heating flow path 75, but the engine cooling circuit C3 is connected to the intake air via the engine cooling water heat exchanger 65 described in the fifth embodiment. It may be indirectly connected to the heating channel 75.
  • the cooling water is heated using the engine 25 as a heat source, but the cooling water may be heated using a heat-generating device such as an inverter as a heat source.
  • the intake air temperature control system 10 applied to a supercharged engine having a supercharger has been described in the above embodiment, the intake air temperature control of the above embodiment is also applied to a naturally aspirated engine not having a supercharger.
  • the system 10 can be applied.
  • knocking can be suppressed by lowering the intake air temperature at high loads. Therefore, the engine can be highly compressed. Further, the ignition timing can be advanced to prevent knocking.
  • the engine 25 is a gasoline engine having the throttle valve 33, but the engine 25 may be a diesel engine having no throttle valve.
  • the compressor 21 is an electric compressor, but the compressor 21 may be an engine-driven compressor.
  • An engine-driven compressor is a compressor that is driven by a rotational driving force transmitted from an internal combustion engine (engine) via a pulley, a belt, or the like.
  • the compressor 21 may be a fixed capacity type compressor or a variable capacity type compressor.
  • the fixed capacity compressor is a compressor that adjusts the refrigerant discharge capacity by changing the operating rate of the compressor by the on / off of an electromagnetic clutch.
  • the variable capacity compressor is a compressor capable of adjusting the refrigerant discharge capacity by changing the discharge capacity.
  • the intake air temperature sensor 53 detects the temperature of the intake air after heat exchange by the intake air cooling heat exchanger 16 and the intake air heating heat exchanger 17 and performs feedback control.
  • the feedforward control may be performed by detecting the temperature of the intake air before heat exchange is performed by the cooling heat exchanger 16 and the intake air heating heat exchanger 17.
  • the cooling water is used as the heat medium circulating in the low temperature side cooling water circuit C1 and the high temperature side cooling water circuit C2, but various media such as oil may be used as the heat medium.
  • a chlorofluorocarbon refrigerant is used as the refrigerant of the refrigeration cycle 20, but the type of the refrigerant is not limited to this, and natural refrigerant such as carbon dioxide, hydrocarbon refrigerant, or the like is used. May be.
  • the refrigeration cycle 20 of the above embodiment constitutes a subcritical refrigeration cycle in which the high-pressure side refrigerant pressure does not exceed the critical pressure of the refrigerant, but constitutes a supercritical refrigeration cycle in which the high-pressure side refrigerant pressure exceeds the critical pressure of the refrigerant. It may be.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

L'invention porte sur un système de commande de température d'air d'admission, lequel système comporte : un refroidisseur de milieu thermique (14) pour provoquer un échange de chaleur entre un réfrigérant du côté basse pression d'un cycle de réfrigération (20) et un milieu thermique afin de refroidir le milieu thermique ; un élément chauffant de milieu thermique (15) pour provoquer un échange de chaleur entre le réfrigérant du côté haute pression du cycle de réfrigération (20) et le milieu thermique afin de chauffer le milieu thermique ; et un dispositif d'échange de chaleur côté admission (16, 17) pour provoquer un échange de chaleur entre le milieu thermique refroidi par le refroidisseur de milieu thermique (14) et de l'air d'admission devant être aspiré dans un moteur (25), et un échange de chaleur entre le milieu thermique chauffé par l'élément chauffant de milieu thermique (15) et l'air d'admission. Par conséquent, des performances de refroidissement d'air d'admission du système de commande de température d'air d'admission pour commander la température d'air d'admission du moteur à combustion interne peuvent être améliorées.
PCT/JP2015/001957 2014-04-09 2015-04-07 Système de commande de température d'air d'admission WO2015155985A1 (fr)

Applications Claiming Priority (2)

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JP2014-080185 2014-04-09
JP2014080185A JP6358424B2 (ja) 2014-04-09 2014-04-09 吸気温度制御システム

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Cited By (2)

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CN107844139A (zh) * 2017-11-10 2018-03-27 重庆凯特动力科技有限公司 汽车发动机试验台用高精度模拟中冷恒温装置
US20230021893A1 (en) * 2021-07-26 2023-01-26 Mazda Motor Corporation Engine intake system

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KR101734769B1 (ko) 2016-05-17 2017-05-11 현대자동차주식회사 오일 온도를 제어할 수 있는 하이브리드형 인터쿨러 시스템 및 그 제어방법
JP2021076073A (ja) * 2019-11-11 2021-05-20 川崎重工業株式会社 ガスエンジンシステム
JP7415247B2 (ja) 2020-04-03 2024-01-17 マツダ株式会社 吸気冷却システム

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JP2008095567A (ja) * 2006-10-10 2008-04-24 Denso Corp 吸気加熱装置
JP2011214544A (ja) * 2010-04-01 2011-10-27 Denso Corp 内燃機関の吸気温度制御装置

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JP2008095567A (ja) * 2006-10-10 2008-04-24 Denso Corp 吸気加熱装置
JP2011214544A (ja) * 2010-04-01 2011-10-27 Denso Corp 内燃機関の吸気温度制御装置

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Publication number Priority date Publication date Assignee Title
CN107844139A (zh) * 2017-11-10 2018-03-27 重庆凯特动力科技有限公司 汽车发动机试验台用高精度模拟中冷恒温装置
US20230021893A1 (en) * 2021-07-26 2023-01-26 Mazda Motor Corporation Engine intake system
US11629633B2 (en) * 2021-07-26 2023-04-18 Mazda Motor Corporation Engine intake system

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