WO2012114426A1 - Système de climatisation de véhicule - Google Patents

Système de climatisation de véhicule Download PDF

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Publication number
WO2012114426A1
WO2012114426A1 PCT/JP2011/053682 JP2011053682W WO2012114426A1 WO 2012114426 A1 WO2012114426 A1 WO 2012114426A1 JP 2011053682 W JP2011053682 W JP 2011053682W WO 2012114426 A1 WO2012114426 A1 WO 2012114426A1
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WIPO (PCT)
Prior art keywords
heat exchanger
air
air conditioning
vehicle
indoor
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/JP2011/053682
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English (en)
Japanese (ja)
Inventor
尾坂忠史
松嶋弘章
関谷禎夫
内田利一
秋山悠基
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Hitachi Ltd
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Hitachi Ltd
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Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2013500725A priority Critical patent/JPWO2012114426A1/ja
Priority to PCT/JP2011/053682 priority patent/WO2012114426A1/fr
Publication of WO2012114426A1 publication Critical patent/WO2012114426A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating devices
    • B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • 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
    • B60H1/32281—Cooling devices using compression characterised by refrigerant circuit configurations comprising a single secondary circuit, e.g. at evaporator or condenser side

Definitions

  • the present invention relates to a vehicle air conditioning system applied to an electric vehicle such as an electric vehicle, a hybrid vehicle, and an electric railway.
  • Patent Document 1 includes a circulation pump that circulates a cooling medium, a cooling circuit that cools an in-vehicle heating element by the cooling medium circulated by the circulation pump, and a refrigerant.
  • a vehicle cooling system comprising: an evaporator for evaporating refrigerant; and a cooling system for a vehicle, wherein the cooling circuit exchanges heat between the cooling medium and air blown into the vehicle interior.
  • a vehicle cooling system with a exchanger is described.
  • Patent Document 2 discloses a system that performs heating and cooling using a heat pump cooling device.
  • a heat pump type cooling device A having a first circulation path and a heating circulation device B having a second circulation path are provided, and the water-cooled condenser in the first circulation path has a second circulation path.
  • 8 is provided in the second circulation path 8 is provided with a flow path switching valve for switching the flow path between the radiator side and the radiator bypass flow path.
  • the second refrigerant is caused to flow into the radiator bypass flow path by the flow path switching valve, and the air heated by the heater core is introduced into the passenger compartment as conditioned air.
  • the flow path switching valve Second Second Flowing medium to the radiator, a vehicle air-conditioning system to be introduced into the passenger compartment of the air cooled by the evaporator as conditioned air is described.
  • an indoor unit, an outdoor unit, and an outdoor fan in a vehicle air-conditioning system including a device cooling circuit for a heat generating device mounted on the vehicle and a vehicle interior air-conditioning device having a refrigeration cycle circuit.
  • the piping work and wiring work of the unit became complicated, and further improvement was required for the assembly efficiency of the entire system.
  • the invention of claim 1 is a device cooling circuit of a heat generating device mounted on a vehicle, a vehicle interior air conditioner having a refrigeration cycle circuit, a device cooling medium of the device cooling circuit, and an air conditioning of the refrigeration cycle circuit.
  • An air conditioning system for a vehicle comprising an intermediate heat exchanger for exchanging heat between the cooling medium for the vehicle, wherein the units are connected to an indoor unit, an outdoor unit, and an outdoor fan unit that are configured separately from each other
  • the invention of claim 2 is the vehicle air conditioning system according to claim 1, wherein the outdoor unit and the heat generating device are connected by a flexible pipe capable of insulating vibration.
  • the invention of claim 3 is the vehicle air conditioning system according to claim 1, wherein the outdoor unit is surrounded by a heat insulating and / or waterproof cover.
  • the invention of claim 4 is the vehicle air conditioning system according to claim 1, wherein the control valve provided in the outdoor unit, which opens and closes the circuit for circulating the cooling medium, is summarized. It is characterized by having arranged.
  • the invention according to claim 5 is the vehicle air conditioning system according to claim 4, wherein the control valves arranged together constitute one block structure.
  • the invention of claim 6 is the vehicle air conditioning system according to claim 4, wherein the control valves arranged together are a combination of a normally closed valve and a normally open valve. To do.
  • the invention of claim 7 is the vehicle air conditioning system according to claim 1, wherein a controller of the vehicle air conditioning system is provided in the outdoor unit.
  • Example 1 shows a schematic configuration of a vehicle air conditioning system of the present invention.
  • the schematic structure of Example 1 of the air conditioner 60 which concerns on this invention is shown.
  • the schematic structure of the air conditioner 60 of Example 1 in the mode of apparatus cooling operation is shown.
  • cooling operation is shown.
  • cooling and apparatus cooling operation is shown.
  • the schematic structure of the air conditioner 60 of Example 1 in the mode of heating operation is shown.
  • the schematic structure of the air conditioner 60 of Example 1 in the mode of heating and apparatus cooling operation is shown.
  • operation is shown.
  • the schematic structure of the air conditioner 60 of Example 1 in the mode of heating and dehumidification operation is shown.
  • the schematic structure of the air conditioner 60 of Example 1 in the mode of heating operation is shown.
  • the schematic structure of the air conditioner 60 of Example 1 in the mode of a defrost operation is shown.
  • sequence of the indoor air-conditioning heat exchanger 7 and the indoor cooling heat exchanger 6 which concern on this invention is shown.
  • sequence of the indoor air-conditioning heat exchanger 7 and the indoor cooling heat exchanger 6 which concern on this invention is shown.
  • the target of temperature control and its conditions are shown.
  • the flowchart of the control processing program in the air-conditioning control apparatus 61 which concerns on this invention is shown.
  • a change in the set temperature of the heating elements 9A to 9D which is a device that requires the vehicle state and temperature adjustment, will be described.
  • the structure of the control apparatus of the electric vehicle by which the vehicle air conditioning system of this invention is mounted is shown.
  • the installation state of the air conditioner 60 of the vehicle air conditioning system of this invention is shown.
  • the vehicle air conditioning system of the present invention is applied to an electric vehicle, but the scope of the present invention is not limited to this.
  • this invention is not limited to an electric vehicle, It can apply also to electric vehicles, such as a hybrid vehicle or an electric railway, a construction vehicle, and other special vehicles.
  • an AC motor driven by an inverter will be described as an example.
  • the present invention is not limited to an AC motor.
  • a DC motor or a chopper driven by a converter such as a thyristor Leonard device is used.
  • the present invention can be applied to all kinds of rotating electric machines (motor / generator) such as a pulse motor driven by a power source.
  • FIG. 1 is a figure which shows schematic structure of the vehicle air-conditioning system of this invention.
  • the vehicle air conditioning system shown in FIG. 1 includes an air conditioner 60 for performing cooling / heating and cooling / heating of a passenger compartment or a device requiring temperature control, and an air conditioning control device 61 for controlling the air conditioner 60.
  • Various actuators provided in the air conditioner 60 are controlled by control signals from the air conditioner controller 61.
  • the actuator related to the present embodiment includes the compressor 1, the expansion valves 22A, 22B and 23 as flow rate control means, the four-way valve 19 as first flow path switching means, and the three-way valve 20 as second flow path switching means. , Two-way valves 21A, 21B, 21C, 21D, pump 5, outdoor fan 3, and indoor fan 8.
  • the air conditioning control device 61 receives a temperature 62 of the passenger compartment and a temperature 63 of a device that needs to be controlled by a temperature sensor.
  • a temperature sensor In this embodiment, there are devices such as a motor, an inverter, a battery, and a gear box as devices that require temperature control, and a temperature sensor is provided for each.
  • the vehicle speed and the accelerator opening as the vehicle driving information 64 are input from the vehicle speed sensor and the accelerator sensor, and the road information and the destination information as the vehicle travel plan information 65 are navigated to the air conditioning control device 61. Input from the device.
  • FIG. 2 is a diagram illustrating a schematic configuration of the air conditioner 60.
  • the air conditioner 60 includes a refrigeration cycle circuit 90 in which an air conditioning cooling medium (for example, a refrigerant) for cooling the indoor air conditioning and the heating elements 9A and 9B circulates, and an equipment cooling medium (for example, cooling water) for cooling the heating elements 9A and 9B. ) Circulating equipment cooling circuit 41.
  • an air conditioning cooling medium for example, a refrigerant
  • an equipment cooling medium for example, cooling water
  • the refrigeration cycle circuit 90 includes a compressor 1 that compresses refrigerant, an outdoor heat exchanger 2 that performs heat exchange between the air conditioning cooling medium and the outside air, and a branched refrigeration cycle circuit 90A.
  • the intermediate heat exchanger 4 that performs heat exchange with the equipment cooling medium flowing in the interior, and the indoor air conditioning heat exchanger 7 that is in the refrigeration cycle circuit 90B and performs heat exchange between the air conditioning cooling medium and the vehicle interior air include an air conditioning cooling medium. It is connected by the liquid piping which circulates.
  • a four-way valve 19 is provided between the suction pipe 11 and the discharge pipe 10 of the compressor 1. By switching the four-way valve 19, one of the suction pipe 11 and the discharge pipe 10 can be connected to the outdoor heat exchanger 2, and the other can be connected to the intermediate heat exchanger 4 and the indoor air conditioning heat exchanger 7.
  • the four-way valve 19 shown in FIG. 2 connects the discharge pipe 10 to the outdoor heat exchanger 2 and connects the suction pipe 11 to the intermediate heat exchanger 4.
  • the indoor air conditioning heat exchanger 7 has one end connected to the outdoor heat exchanger 2 and the other end connected to either the discharge pipe 10 or the suction pipe 11 of the compressor 1 via the three-way valve 20 so as to be switchable.
  • the expansion valves 23, 22 ⁇ / b> A, and 22 ⁇ / b> B acting as flow control means for the air conditioning cooling medium are respectively connected to the side of the outdoor heat exchanger 2 that is not connected to the compressor 1, the intermediate heat exchanger 4 and the outdoor heat exchanger 2. In the meantime, it is provided between the indoor air conditioning heat exchanger 7 and the outdoor heat exchanger 2.
  • the outdoor heat exchanger 2 is provided with an outdoor fan 3 for blowing outside air.
  • the equipment cooling circuit 41 includes an indoor cooling heat exchanger 6 that performs heat exchange between the equipment cooling medium and vehicle interior air, an intermediate heat exchanger 4, and a pump 5 that circulates the equipment cooling medium in the equipment cooling circuit 41, Heating elements 9A and 9B, which are devices that require temperature control, are sequentially connected in a ring shape.
  • the equipment cooling circuit 41 is provided with a bypass circuit 41C that bypasses both ends of the indoor cooling heat exchanger 6.
  • the bypass circuit 41C is provided with a two-way valve 21C, and the main circuit 41D passing through the indoor cooling heat exchanger 6 is provided with a two-way valve 21D. By opening and closing these two-way valves 21C and 21D, the flow path of the device cooling medium can be switched.
  • a plurality of heating elements 9A and 9B are connected to the equipment cooling circuit 41 as shown in FIG.
  • the two-way valve 21B is installed in the equipment cooling circuit 41B including the heating element 9B, and the two-way valve 21A is installed in the equipment cooling circuit 41A that does not pass the heating element 9B.
  • both the heating elements 9A and 9B can be temperature-controlled.
  • the two-way valve 21A is opened and the two-way valve 21B is closed, only the heating element 9A is warmed. I can adjust it.
  • a plurality of heating elements may be connected in series at the position of the heating element 9A. The heating element connection method and the two-way valve installation method can be changed according to the temperature conditions of the heating element.
  • the indoor unit 42 that blows out temperature-controlled air sucks indoor (inside the vehicle) or outdoor (outside the vehicle) air and blows the air indoors or outdoors, and the indoor cooling heat exchanger 6 ,
  • a switching damper 44 for switching the air exchanged by the indoor air-conditioning heat exchanger 7 and the indoor cooling heat exchanger 6 to blow out indoors or outdoors, suction of indoor or outdoor air, and air to indoors or outdoors Air outlets 43A, 43B, 43C, and 43D.
  • the temperature of the heating element 9 is adjusted by circulating the equipment cooling medium by the pump 5.
  • the operation of other devices varies according to the air conditioning load and the amount of heat generated from the heating element 9.
  • cooling + apparatus cooling, heating, heating + apparatus cooling, dehumidification, heating dehumidification, apparatus heating, and defrosting is demonstrated.
  • the device cooling operation is an operation of cooling the heating element 9 in a state where there is no indoor air conditioning, and will be described with reference to FIG.
  • the equipment cooling medium circulating in the equipment cooling circuit 41 may be cooled only by the indoor cooling heat exchanger 6 or the equipment cooling medium may be cooled by the indoor cooling heat exchanger 6 and the intermediate heat exchanger 4. .
  • the device cooling medium circulates through the indoor cooling heat exchanger 6 and the intermediate heat exchanger 4 by driving the pump 5.
  • the two-way valve 21B is closed and the two-way valve 21A is opened, the device cooling medium flows into the device cooling circuit 41A.
  • the two-way valve 21A is closed and the two-way valve 21B is opened, the device cooling circuit 41B is entered. Equipment cooling medium flows.
  • both the heating elements 9A and 9B are cooled, the two-way valve 21A is closed and the two-way valve 21B is opened.
  • the switching damper 44 in the indoor unit 42 is set so that the air sucked at the air inlet / outlet 43A passes through the indoor cooling heat exchanger 6 and blows out from the air inlet / outlet 43C as shown in FIG.
  • the equipment cooling medium can be cooled by the air passing through the indoor cooling heat exchanger 6. Further, the cooling capacity can be adjusted by the amount of air sucked by the indoor fan 8A.
  • the air inlet / outlet port 43C communicates with the outside (outside the vehicle) by a duct (not shown) so that warm air is not blown into the room.
  • the four-way valve 19 and the three-way valve 20 are connected as shown in FIG. 3, and the discharge pipe 10 of the compressor 1 is connected to the outdoor heat exchanger 2, The suction pipe 11 of the compressor 1 is connected to the intermediate heat exchanger 4 and the indoor air conditioning heat exchanger 7.
  • the expansion valve 22B is fully closed so that the cooling medium for air conditioning does not flow to the indoor air conditioning heat exchanger 7. That is, the outdoor heat exchanger 2 is a condenser, and the intermediate heat exchanger 4 is an evaporator.
  • the air conditioning cooling medium compressed by the compressor 1 is liquefied by radiating heat from the outdoor heat exchanger 2, and then flows through the fully open expansion valve 23 and through the intermediate heat exchanger 4.
  • the air conditioning cooling medium flowing to the intermediate heat exchanger 4 is decompressed by the expansion valve 22A to become low temperature and low pressure, evaporates by absorbing heat from the equipment cooling medium of the equipment cooling circuit 41 in the intermediate heat exchanger 4, and the four-way valve 19 Return to the compressor 1 through.
  • the intermediate heat exchanger 4 exchanges heat between the equipment cooling medium and the air conditioning cooling medium, thereby cooling the equipment cooling medium.
  • the equipment cooling medium can be cooled by the indoor cooling heat exchanger 6 and the intermediate heat exchanger 4.
  • the refrigeration cycle circuit 90 is not used, and the equipment cooling medium is cooled only by the indoor cooling heat exchanger 6, and when the equipment cooling medium is higher than the predetermined temperature, the refrigeration cycle circuit is used.
  • the equipment cooling medium is cooled by the indoor cooling heat exchanger 6 and the intermediate heat exchanger 4 using 90.
  • the air volume of the indoor fan 8A, the flow rate of the pump 5, the rotational speed of the compressor 1, the opening of the expansion valve 22A, and the air volume of the outdoor fan 3 may be controlled.
  • the air volume of the indoor fan 8A is increased, the flow rate of the pump 5 is increased, the rotational speed of the compressor 1 is increased, the opening of the expansion valve 22A is opened, and the air volume of the outdoor fan 3 is increased. It only has to increase.
  • the air volume of the indoor fan 8A is reduced, the flow rate of the pump 5 is reduced, the rotational speed of the compressor 1 is reduced, the opening of the expansion valve 22A is throttled, and the outdoor fan 3
  • the air volume should be reduced. Note that it is not necessary to control all the actuators, and at least one should be controlled.
  • the cooling operation is an operation for cooling the room without cooling the heating element 9, and will be described with reference to FIG.
  • the equipment cooling circuit 41 closes the two-way valve 21D and opens the two-way valve 21C, so that the equipment cooling medium does not flow through the indoor cooling heat exchanger 6 by driving the pump 5, but flows through the equipment cooling circuit 41C. . Even when the heating element 9 is not cooled in this way, the equipment cooling medium of the equipment cooling circuit 41 is circulated in order to prevent an uneven temperature rise of the equipment cooling medium in the heating element 9 portion.
  • the device cooling medium flows into the device cooling circuit 41A.
  • the device cooling circuit 41B is entered. Equipment cooling medium flows.
  • the switching damper 44 in the indoor unit 42 is set so that the air sucked at the air inlet / outlet 43A passes through the indoor cooling heat exchanger 6 and the indoor air conditioning heat exchanger 7 and blows out from the air inlet / outlet 43B as shown in FIG. Since the equipment cooling medium does not circulate in the indoor cooling heat exchanger 6, the temperature of the air passing through the indoor cooling heat exchanger 6 does not change. Note that the air inlet / outlet port 43B communicates with the room (inside the vehicle) through a duct (not shown) and controls the temperature of the room.
  • a four-way valve 19 and a three-way valve 20 are connected as shown in FIG. 4, the discharge pipe 10 of the compressor 1 is connected to the outdoor heat exchanger 2, and the suction pipe 11 of the compressor 1 is intermediate heat. It is connected to the exchanger 4 and the indoor air conditioning heat exchanger 7.
  • the expansion valve 22A is fully closed so that the air-conditioning cooling medium does not flow to the intermediate heat exchanger 4. That is, the outdoor heat exchanger 2 is a condenser, and the indoor air conditioning heat exchanger 7 is an evaporator.
  • the air conditioning cooling medium compressed by the compressor 1 is liquefied by radiating heat from the outdoor heat exchanger 2, and then flows through the fully opened expansion valve 23 and flows through the indoor air conditioning heat exchanger 7.
  • the cooling medium for air conditioning flowing through the indoor air conditioning heat exchanger 7 is decompressed by the expansion valve 22B to become low temperature and low pressure, evaporates by absorbing heat from the air sucked at the air inlet / outlet 43A in the indoor air conditioning heat exchanger 7, and the three-way valve Return to the compressor 1 through 20.
  • the air cooled by the heat exchange in the indoor air conditioning heat exchanger 7 is blown out from the air inlet / outlet port 43B into the vehicle interior.
  • the air volume of the indoor fan 8A, the rotational speed of the compressor 1, the opening of the expansion valve 22B, and the air volume of the outdoor fan 3 may be controlled.
  • the air volume of the indoor fan 8A is increased, the rotational speed of the compressor 1 is increased, the opening of the expansion valve 22B is opened, and the air volume of the outdoor fan 3 is increased.
  • the air volume of the indoor fan 8A is decreased, the rotational speed of the compressor 1 is decreased, the opening of the expansion valve 22B is reduced, and the air volume of the outdoor fan 3 is decreased. Note that it is not necessary to control all the actuators, and at least one should be controlled.
  • Cooling and equipment cooling operation is an operation of cooling the heating element 9 and cooling the room, and will be described with reference to FIG.
  • the equipment cooling medium circulating in the equipment cooling circuit 41 may be cooled only by the indoor cooling heat exchanger 6 or the equipment cooling medium may be cooled by the indoor cooling heat exchanger 6 and the intermediate heat exchanger 4. .
  • the two-device cooling circuit 41 closes the two-way valve 21 ⁇ / b> C and opens the two-way valve 21 ⁇ / b> D, whereby the device cooling medium circulates through the indoor cooling heat exchanger 6 and the intermediate heat exchanger 4 by driving the pump 5. .
  • the device cooling medium flows into the device cooling circuit 41A.
  • the device cooling circuit 41B is entered.
  • Equipment cooling medium flows.
  • both the heating elements 9A and 9B are cooled, the two-way valve 21A is closed and the two-way valve 21B is opened.
  • the switching damper 44 in the indoor unit 42 causes the air sucked at the air inlet / outlet 43A to blow out from the air inlet / outlet 43C through the indoor cooling heat exchanger 6 as shown in FIG.
  • the air inlet / outlet port 43C communicates with the outside (outside the vehicle) through a duct (not shown) so as not to blow air into the room.
  • the air sucked at the air inlet / outlet 43D by the indoor fan 8B passes through the indoor air conditioning heat exchanger 7 and blows out from the air inlet / outlet 43B.
  • the equipment cooling medium can be cooled by the air passing through the indoor cooling heat exchanger 6.
  • the air passing through the indoor cooling heat exchanger 7 is cooled by the indoor cooling heat exchanger 7, and the cooled air is blown out into the room (inside the vehicle).
  • a four-way valve 19 and a three-way valve 20 are connected as shown in FIG. 5, the discharge pipe 10 of the compressor 1 is connected to the outdoor heat exchanger 2, and the suction pipe 11 of the compressor 1.
  • the outdoor heat exchanger 2 is a condenser, and the intermediate heat exchanger 4 and the indoor air conditioning heat exchanger 7 are evaporators.
  • the air-conditioning cooling medium compressed by the compressor 1 is liquefied by radiating heat from the outdoor heat exchanger 2 and then flows through the fully opened expansion valve 23 and through the intermediate heat exchanger 4 and the indoor air-conditioning heat exchanger 7.
  • the air conditioning cooling medium flowing to the intermediate heat exchanger 4 is decompressed by the expansion valve 22A to become low temperature and low pressure, evaporates by absorbing heat from the equipment cooling medium of the equipment cooling circuit 41 in the intermediate heat exchanger 4, and the four-way valve 19 Return to the compressor 1 through. In this way, the intermediate heat exchanger 4 exchanges heat between the equipment cooling medium and the air conditioning cooling medium, thereby cooling the equipment cooling medium.
  • the cooling medium for air conditioning flowing through the indoor air conditioning heat exchanger 7 is decompressed by the expansion valve 22B to become low temperature and low pressure, evaporates by absorbing heat from the air sucked through the air inlet / outlet 43D in the indoor air conditioning heat exchanger 7, and the three-way valve Return to the compressor 1 through 20.
  • the air cooled by the heat exchange in the indoor air conditioning heat exchanger 7 is blown out into the room through the air inlet / outlet 43B.
  • both the intermediate heat exchanger 4 and the indoor air-conditioning heat exchanger 7 can be used as an evaporator, cooling of the passenger compartment and cooling of the heating element 9 can be realized simultaneously. Furthermore, since the intermediate heat exchanger 4 and the indoor air conditioning heat exchanger 7 are connected in parallel to the suction pipe 11 of the compressor 1, the refrigeration cycle circuits 90A and 90B are provided with expansion valves 22A and 22B, respectively.
  • the flow rate of the cooling medium for air conditioning flowing to the intermediate heat exchanger 4 and the indoor air conditioning heat exchanger 7 can be arbitrarily changed. As a result, the temperature of the equipment cooling medium and the temperature of the air conditioning cooling medium can be controlled to any desired temperatures. Therefore, even when the temperature of the air-conditioning cooling medium is sufficiently lowered for cooling, the temperature of the equipment cooling medium flowing inside the heating element 9 is suppressed by suppressing the flow rate of the refrigerant flowing to the intermediate heat exchanger 4. Can be kept high.
  • the equipment cooling medium can be cooled by the indoor cooling heat exchanger 6 and the intermediate heat exchanger 4 as described above.
  • the refrigeration cycle circuit 90 is not used, and the equipment cooling medium is cooled only by the indoor cooling heat exchanger 6, and when the equipment cooling medium is higher than the predetermined temperature, the refrigeration cycle circuit is used.
  • the equipment cooling medium is cooled by the indoor cooling heat exchanger 6 and the intermediate heat exchanger 4 using 90. This is controlled by adjusting the opening of the expansion valve 22A. When the expansion valve 22A is fully closed, the cooling medium for air conditioning does not flow to the intermediate heat exchanger 4, so that the equipment cooling medium is cooled only by the indoor cooling heat exchanger 6.
  • the air volume of the outdoor fan 3 may be controlled.
  • the air volume of the indoor fans 8A and 8B is increased, the flow rate of the pump 5 is increased, the rotational speed of the compressor 1 is increased, the expansion valve 22A, What is necessary is just to open the opening of 22B and to increase the air volume of the outdoor fan 3.
  • the heating operation is an operation for heating the room without cooling the heating element 9, and will be described with reference to FIG.
  • the equipment cooling circuit 41 opens the two-way valve 21 ⁇ / b> D and closes the two-way valve 21 ⁇ / b> C, so that the equipment cooling medium flows through the indoor cooling heat exchanger 6 and the intermediate heat exchanger 4 by driving the pump 5.
  • the device cooling medium flows into the device cooling circuit 41A.
  • the device cooling circuit 41B is entered. Equipment cooling medium flows.
  • the switching damper 44 in the indoor unit 42 is set so that the air sucked at the air inlet / outlet 43A passes through the indoor cooling heat exchanger 6 and the indoor air conditioning heat exchanger 7 and blows out from the air inlet / outlet 43B as shown in FIG. Since the equipment cooling medium heated by the heating element 9 circulates in the indoor cooling heat exchanger 6, the temperature of the air passing through the indoor cooling heat exchanger 6 is raised.
  • the air inlet / outlet port 43B communicates with the room (inside the vehicle) and controls the temperature of the room.
  • the refrigeration cycle circuit 90 is not used for heating by using the exhaust heat from the heating element 9 for heating as described above. By doing in this way, the air conditioning which suppressed energy consumption is realizable.
  • the two-way valve 21A is closed and the two-way valve 21B is opened, the device cooling medium flows into the device cooling circuit 41B and the exhaust heat of the heating element 9B can be used for heating, thereby further reducing energy consumption. it can.
  • the refrigeration cycle circuit 90 is used in combination with the exhaust heat from the heating elements 9A and 9B.
  • the four-way valve 19 and the three-way valve 20 are connected, the discharge pipe 10 of the compressor 1 is connected to the intermediate heat exchanger 4 and the indoor air conditioning heat exchanger 7, and the suction pipe 11 is the outdoor heat.
  • the expansion valve 22A is fully closed and the expansion valve 22B is fully opened so that the air conditioning cooling medium does not flow to the intermediate heat exchanger 4 but flows only to the indoor air conditioning heat exchanger 7. That is, the indoor air-conditioning heat exchanger 7 is a condenser and the outdoor heat exchanger 2 is an evaporator.
  • the air-conditioning cooling medium compressed by the compressor 1 is condensed and liquefied by releasing heat from the indoor air-conditioning heat exchanger 7. Thereafter, after being decompressed by the expansion valve 23, the outdoor heat exchanger 2 evaporates and gasifies by heat exchange with outdoor air and returns to the compressor 1.
  • the air sucked through the air inlet / outlet 43 ⁇ / b> A is heated by the room cooling heat exchanger 6 by the equipment cooling medium flowing through the equipment cooling circuit 41. And by the heat exchange in the indoor air conditioning heat exchanger 7 arranged on the downstream side, further warmed air is blown out into the room from the air inlet / outlet 43B.
  • the air blown into the room is heated by the exhaust heat of the heating element 9 and then further heated by the refrigeration cycle circuit 90.
  • the heating of the air using the refrigeration cycle circuit 90 compensates for the lack of the air temperature heated by the exhaust heat of the heating element 9, so that an air conditioner with low energy consumption can be configured.
  • the air volume of the indoor fan 8A, the flow rate of the pump 5, the rotational speed of the compressor 1, the opening degree of the expansion valve 22B, and the air volume of the outdoor fan 3 can be controlled. good.
  • the air volume of the indoor fan 8A is increased, the flow rate of the pump 5 is increased, the rotational speed of the compressor 1 is increased, the opening of the expansion valve 22B is opened, and the air volume of the outdoor fan 3 is increased. do it.
  • the air volume of the indoor fan 8A is decreased, the flow rate of the pump 5 is decreased, the rotational speed of the compressor 1 is decreased, the opening degree of the expansion valve 22B is reduced, and the air volume of the outdoor fan 3 is reduced. Should be reduced. Note that it is not necessary to control all the actuators, and at least one should be controlled.
  • Heating and apparatus cooling operation are the operation which cools the heat generating body 9, and heats a room
  • the equipment cooling medium can be kept below the target temperature by heat radiation in the room cooling heat exchanger 6, the temperature rise of the heating element 9 can be suppressed.
  • equipment cooling using the refrigeration cycle circuit 90 is required.
  • a four-way valve 19 and a three-way valve 20 are connected as shown in FIG. 7, and the discharge pipe 10 of the compressor 1 is connected to the outdoor heat exchanger 2 and the indoor air-conditioning heat exchanger 7, and a suction pipe 11 is connected to the intermediate heat exchanger 4.
  • the expansion valve 23 is fully closed and the expansion valve 22B is fully opened so that the air-conditioning cooling medium does not flow to the outdoor heat exchanger 2. That is, the indoor air-conditioning heat exchanger 7 is a condenser and the intermediate heat exchanger 4 is an evaporator.
  • the air-conditioning cooling medium compressed by the compressor 1 is condensed and liquefied by releasing heat from the indoor air-conditioning heat exchanger 7. Thereafter, after the pressure is reduced by the expansion valve 22A, the intermediate heat exchanger 4 is evaporated and gasified by heat exchange with the equipment cooling medium flowing through the equipment cooling circuit 41, and returns to the compressor 1. In the intermediate heat exchanger 4, the equipment cooling medium and the cooling medium for air conditioning exchange heat, and the equipment cooling medium is cooled.
  • the equipment cooling circuit 41 opens the two-way valve 21 ⁇ / b> D and closes the two-way valve 21 ⁇ / b> C, so that the equipment cooling medium flows through the indoor cooling heat exchanger 6 and the intermediate heat exchanger 4 by driving the pump 5.
  • the device cooling medium flows into the device cooling circuit 41A.
  • the device cooling circuit 41B is entered. Equipment cooling medium flows.
  • the switching damper 44 in the indoor unit 42 is set so that the air sucked at the air inlet / outlet 43A passes through the indoor cooling heat exchanger 6 and the indoor air conditioning heat exchanger 7 and blows out from the air inlet / outlet 43B as shown in FIG. Since the equipment cooling medium heated by the heating element 9 circulates in the indoor cooling heat exchanger 6, the temperature of the air passing through the indoor cooling heat exchanger 6 is raised.
  • the equipment cooling medium it is possible to cool the equipment cooling medium by heat radiation in the indoor cooling heat exchanger 6 and heat exchange in the intermediate heat exchanger 4.
  • the air volume of the indoor fan 8A, the flow rate of the pump 5, the rotational speed of the compressor 1, and the opening of the expansion valve 22A are controlled. good.
  • the air volume of the indoor fan 8A is increased, the flow rate of the pump 5 is increased, the rotational speed of the compressor 1 is increased, and the opening of the expansion valve 22A Can be opened.
  • the air volume of the indoor fan 8A is reduced, the flow rate of the pump 5 is reduced, the rotational speed of the compressor 1 is reduced, and the expansion valve 22A What is necessary is just to squeeze the opening. Note that it is not necessary to control all the actuators, and at least one should be controlled.
  • the dehumidifying operation is an operation for dehumidifying the room and will be described with reference to FIG.
  • a four-way valve 19 and a three-way valve 20 are connected as shown in FIG. 8, the discharge pipe 10 of the compressor 1 is connected to the outdoor heat exchanger 2, and the suction pipe 11 of the compressor 1 is an intermediate heat exchanger. 4 and the indoor air conditioning heat exchanger 7.
  • the expansion valve 22A is fully closed and the expansion valve 23 is fully open so that the air-conditioning cooling medium does not flow to the intermediate heat exchanger 4. That is, the outdoor heat exchanger 2 is a condenser, and the indoor air conditioning heat exchanger 7 is an evaporator.
  • the air conditioning cooling medium compressed by the compressor 1 is liquefied by radiating heat from the outdoor heat exchanger 2, and then flows through the fully opened expansion valve 23 and flows through the indoor air conditioning heat exchanger 7.
  • the cooling medium for air conditioning flowing through the indoor air conditioning heat exchanger 7 is decompressed by the expansion valve 22B to become low temperature and low pressure, evaporates by absorbing heat from the air sucked at the air inlet / outlet 43A in the indoor air conditioning heat exchanger 7, and the three-way valve Return to the compressor 1 through 20.
  • the equipment cooling circuit 41 opens the two-way valve 21 ⁇ / b> D and closes the two-way valve 21 ⁇ / b> C, so that the equipment cooling medium flows through the intermediate heat exchanger 4 and the indoor cooling heat exchanger 6 by driving the pump 5.
  • the device cooling medium flows into the device cooling circuit 41A.
  • the device cooling circuit 41B is entered. Equipment cooling medium flows.
  • the switching damper 44 in the indoor unit 42 is set so that the air sucked at the air inlet / outlet 43B is blown out from the air inlet / outlet 43A through the indoor air conditioning heat exchanger 7 and the indoor cooling heat exchanger 6 as shown in FIG.
  • the air sucked at the air inlet / outlet 43B is dehumidified and cooled by exchanging heat with the indoor air conditioning heat exchanger 7.
  • the equipment cooling medium warmed by the heating element 9 circulates in the indoor cooling heat exchanger 6, the temperature of the air passing through the indoor cooling heat exchanger 6 is raised. In this way, a so-called reheat dehumidification operation is possible. Since the relative humidity of the air supplied into the passenger compartment is low, the comfort of the indoor space can be improved.
  • the air inlet / outlet port 43A communicates with the room (inside the vehicle) through a duct (not shown) and controls the temperature of the room.
  • the heat source of the indoor cooling heat exchanger 6 used as a reheater is waste heat generated by the heating element 9. Therefore, unlike the case of using a heater or the like for reheating, it is not necessary to input new energy, so that it is possible to improve the comfort in the vehicle interior without increasing the power consumption.
  • the air volume of the indoor fan 8A, the flow rate of the pump 5, the rotational speed of the compressor 1, the opening of the expansion valve 22B, and the air volume of the outdoor fan 3 may be controlled.
  • the air volume of the indoor fan 8A is decreased, the flow rate of the pump 5 is decreased, the rotational speed of the compressor 1 is decreased, the opening degree of the expansion valve 22B is reduced, and the air volume of the outdoor fan 3 is decreased. That's fine. Note that it is not necessary to control all the actuators, and at least one should be controlled.
  • Heating and Dehumidifying Operation are operations for heating and dehumidifying the room, and will be described with reference to FIG.
  • a four-way valve 19 and a three-way valve 20 are connected, the discharge pipe 10 of the compressor 1 is connected to the intermediate heat exchanger 4, and the suction pipe 11 of the compressor 1 is outdoor heat. It is connected to the exchanger 2 and the indoor air conditioning heat exchanger 7.
  • the expansion valve 22A is fully opened and the expansion valve 23 is fully closed so that the air-conditioning cooling medium does not flow to the outdoor heat exchanger 2. That is, the intermediate heat exchanger 4 is a condenser and the indoor air conditioning heat exchanger 7 is an evaporator.
  • the air-conditioning cooling medium compressed by the compressor 1 is liquefied by radiating heat from the intermediate heat exchanger 4, and then flows through the indoor air-conditioning heat exchanger 7 through the fully opened expansion valve 22 ⁇ / b> A.
  • the cooling medium for air conditioning flowing through the indoor air conditioning heat exchanger 7 is decompressed by the expansion valve 22B to become low temperature and low pressure, evaporates by absorbing heat from the air sucked at the air inlet / outlet 43A in the indoor air conditioning heat exchanger 7, and the three-way valve Return to the compressor 1 through 20.
  • the equipment cooling medium and the cooling medium for air conditioning exchange heat, and the equipment cooling medium is heated.
  • the equipment cooling circuit 41 opens the two-way valve 21 ⁇ / b> D and closes the two-way valve 21 ⁇ / b> C, so that the equipment cooling medium flows through the intermediate heat exchanger 4 and the indoor cooling heat exchanger 6 by driving the pump 5.
  • the device cooling medium flows into the device cooling circuit 41A.
  • the device cooling circuit 41B is opened.
  • Equipment cooling medium flows. When much heat exhausted from the heating element 9 is used, it is better to close the two-way valve 21A and open the two-way valve 21B.
  • the switching damper 44 in the indoor unit 42 is set so that the air sucked at the air inlet / outlet 43B is blown out from the air inlet / outlet 43A through the indoor air conditioning heat exchanger 7 and the indoor cooling heat exchanger 6 as shown in FIG.
  • the air sucked at the air inlet / outlet 43B is dehumidified and cooled by exchanging heat with the indoor air conditioning heat exchanger 7. Since the equipment cooling medium warmed by the intermediate heat exchanger 4 and the heating element 9 circulates in the indoor cooling heat exchanger 6, the temperature of the air passing through the indoor cooling heat exchanger 6 is raised. In this way, heating and dehumidifying operation are possible.
  • the air inlet / outlet port 43A communicates with the room (inside the vehicle) through a duct (not shown) and controls the temperature of the room.
  • the air volume of the indoor fan 8A, the flow rate of the pump 5, the rotational speed of the compressor 1, and the opening of the expansion valve 22B may be controlled.
  • the air volume of the indoor fan 8A is increased, the flow rate of the pump 5 is increased, the rotational speed of the compressor 1 is increased, and the opening of the expansion valve 22B is opened.
  • the air volume of the indoor fan 8A is reduced, the flow rate of the pump 5 is reduced, the rotational speed of the compressor 1 is reduced, and the opening degree of the expansion valve 22B is reduced. Note that it is not necessary to control all the actuators, and at least one should be controlled.
  • the equipment heating operation is an operation for heating the heating element 9 without performing indoor air conditioning, and will be described with reference to FIG.
  • the four-way valve 19 and the three-way valve 20 are connected, and the discharge pipe 10 of the compressor 1 is connected to the intermediate heat exchanger 4 and the indoor air conditioning heat exchanger 7.
  • the suction pipe 11 is connected to the outdoor heat exchanger 2.
  • the expansion valve 22A is fully open and the expansion valve 22B is fully closed so that the air-conditioning cooling medium does not flow to the indoor air-conditioning heat exchanger 7. That is, the intermediate heat exchanger 4 is a condenser and the outdoor heat exchanger 2 is an evaporator.
  • the air-conditioning cooling medium compressed by the compressor 1 is liquefied by dissipating heat in the intermediate heat exchanger 4, and then flows through the fully open expansion valve 22 ⁇ / b> A and through the outdoor heat exchanger 2.
  • the air-conditioning cooling medium flowing in the outdoor heat exchanger 2 is decompressed by the expansion valve 23 to become low temperature and low pressure, evaporates by absorbing heat from the outdoor air in the outdoor heat exchanger 2, and returns to the compressor 1.
  • the equipment cooling medium and the cooling medium for air conditioning exchange heat, and the equipment cooling medium is heated.
  • the equipment cooling circuit 41 closes the two-way valve 21 ⁇ / b> D and opens the two-way valve 21 ⁇ / b> C, so that the equipment cooling medium does not flow through the indoor cooling heat exchanger 6 by driving the pump 5.
  • the device cooling medium flows into the device cooling circuit 41A.
  • the device cooling circuit 41B is entered.
  • Equipment cooling medium flows.
  • the two-way valve 21A or 21B is opened so that the device cooling medium flows through the heating element 9 to be heated. Since the equipment cooling medium is heated by the refrigeration cycle circuit 90, the heating element 9 can be heated by circulating the equipment cooling medium.
  • the indoor unit 42 does not suck in or discharge air and does not drive the indoor fans 8A and 8B. Further, the indoor cooling heat exchanger 6 and the indoor air conditioning heat exchanger 7 do not exchange heat because they do not flow the equipment cooling medium and the air conditioning cooling medium, respectively.
  • the defrosting operation is an operation in which the outdoor heat exchanger 2 is defrosted by temporarily switching from the heating operation and the device heating operation, and will be described with reference to FIG.
  • the cooling medium for air conditioning compressed by the compressor 1 is liquefied by radiating heat in the outdoor heat exchanger 2 and the indoor air conditioning heat exchanger 7, and then passes through the fully opened expansion valves 22B and 23 to pass through the intermediate heat exchanger 4. Flowing. Thereby, the frost which arrived at the outdoor heat exchanger 2 can be removed.
  • the air-conditioning cooling medium flowing in the intermediate heat exchanger 4 is decompressed by the expansion valve 22 ⁇ / b> A to become low temperature and low pressure, evaporates by absorbing heat in the intermediate heat exchanger 4, and returns to the compressor 1.
  • the equipment cooling medium and the cooling medium for air conditioning exchange heat, and the equipment cooling medium is cooled.
  • the equipment cooling circuit 41 closes the two-way valve 21 ⁇ / b> D and opens the two-way valve 21 ⁇ / b> C, so that the equipment cooling medium does not flow through the indoor cooling heat exchanger 6 by driving the pump 5.
  • the device cooling medium flows into the device cooling circuit 41A.
  • the device cooling circuit 41B is entered.
  • Equipment cooling medium flows. Since the equipment cooling medium is cooled by the refrigeration cycle circuit 90, the heating element 9 can be cooled by circulating the equipment cooling medium.
  • the switching damper 44 in the indoor unit 42 is set so that the air sucked in the air inlet / outlet 43A passes through the indoor cooling heat exchanger 6 and the indoor air conditioning heat exchanger 7 and blows out from the air inlet / outlet 43B as shown in FIG. Since the equipment cooling medium does not circulate in the indoor cooling heat exchanger 6, the temperature of the air passing through the indoor cooling heat exchanger 6 does not change in temperature. In the indoor air conditioning heat exchanger 7 disposed on the downstream side, As a result of this heat exchange, the warmed air is blown out from the air inlet / outlet port 43B into the vehicle interior. Thus, warm air can be blown into the room even in the defrosting operation. Note that the air inlet / outlet port 43B communicates with the room (inside the vehicle) through a duct (not shown) and controls the temperature of the room.
  • the expansion valve 22B may be fully closed and the indoor fans 8A and 8B may not be driven.
  • the air volume of the indoor fan 8A, the flow rate of the pump 5, the rotational speed of the compressor 1, the opening of the expansion valve 22A, and the air volume of the outdoor fan 3 may be controlled.
  • the air volume of the indoor fan 8A is increased, the flow rate of the pump 5 is increased, the rotational speed of the compressor 1 is increased, the opening of the expansion valve 22A is opened, and the air volume of the outdoor fan 3 is increased. Good.
  • the air volume of the indoor fan 8A is decreased, the flow rate of the pump 5 is decreased, the rotational speed of the compressor 1 is decreased, the opening of the expansion valve 22A is reduced, and the air volume of the outdoor fan 3 is decreased. do it. Note that it is not necessary to control all the actuators, and at least one should be controlled.
  • the equipment cooling medium flowing through the indoor cooling heat exchanger 6 is low, the equipment cooling medium is prevented from flowing into the indoor cooling heat exchanger 6. That is, the heating operation using exhaust heat cannot be performed.
  • a switching damper 44 is installed so that the warm air heat exchanged in the room cooling heat exchanger 6 does not enter the vehicle. did.
  • the air outlets 43A, 43B, 43C, and 43D of the indoor unit 42 shown in FIG. 2 will be described.
  • the air outlets 43A, 43B, 43C are designed to suck indoor air (inside air) or outside air (outside air) through a duct (not shown).
  • the air inlets 43A, 43B Is blown into the room (inside the vehicle) by a duct (not shown).
  • the air blown into the room can be switched to the feet, the windshield, and the like by a duct (not shown).
  • the air inlet / outlet 43D is provided with a duct (not shown) so as to blow out to the outside (outside the vehicle).
  • the heating element 9 provided in the device cooling circuit 41 is a device that is mounted on the vehicle and needs to adjust the temperature to a predetermined range when the vehicle is operated.
  • Specific examples of the heating element 9 include a travel drive motor 73, an inverter 72 for driving the motor 73, a drive battery 76, and a speed reduction mechanism (gear box) provided in the travel drive system.
  • FIG. 14 is a diagram showing conditions for temperature control.
  • the temperature control target includes the passenger compartment and the heating element 9, and the heating element 9 is shown for the motor 73, the inverter 72, the battery 76, and the gear box.
  • the air conditioning in the passenger compartment is appropriately air-conditioned and dehumidified based on the temperature setting and the outside air temperature. However, as will be described later, cooling may be stopped or weakened to cool the heating element 9.
  • the temperature of the motor 73 and the inverter 72 generally increases when a high torque is output. Therefore, the output time of high torque is limited so as not to exceed the predetermined temperature. By increasing the cooling capacity of the motor 73 and the inverter 72, the output time of high torque can be extended.
  • the temperature of the equipment cooling medium circulating in the motor 73 and the inverter 72 is controlled to be, for example, 60 ° C. or less.
  • the battery 76 preferably maintains the temperature of the battery 76 in a predetermined temperature range in order to fully exhibit its charge / discharge capability, that is, in order to improve charge / discharge efficiency. Therefore, warm-up (equipment heating) is required when the battery temperature is low (for example, when the outside air temperature is low), and cooling is required when the battery temperature becomes too high due to heat generation of the battery itself. .
  • the parallel gear train in the gear box is immersed in the lubricating oil.
  • the viscosity of the lubricating oil in the gearbox case affects the loss during driving.
  • the lubricating oil temperature is low (such as when the outside air temperature is low)
  • Some stirring loss increases.
  • the lubricating oil temperature is too high, the oil film is not sufficiently formed on the meshing surface of the gear, and the friction loss increases. For this reason, warm-up (equipment heating) is required at the start of winter, etc., and when the lubricating oil temperature is high, it is necessary to promote heat dissipation from the gear box.
  • the air conditioner 60 by configuring the air conditioner 60 as described above, it is possible to individually control the vehicle interior air conditioning and the cooling and heating of the heating element 9 such as a motor and an inverter. And the air-conditioning control apparatus 61 controls the air-conditioning apparatus 60 so that the temperature of a vehicle interior temperature and the temperature of the apparatus which requires temperature control become each setting temperature.
  • the air-conditioning control apparatus 61 takes in the vehicle driving information 64 (vehicle speed information, accelerator opening information, etc.) and travel plan information 65, and those information and
  • the air conditioner 60 is controlled based on the temperature 63 of the equipment requiring temperature control and the vehicle interior temperature 62. For example, by predicting temperature changes in equipment and vehicle interiors that require temperature control, and by changing the preset temperature of the cooling medium for air conditioning and the equipment cooling medium in advance based on the prediction, it is possible to efficiently cool and warm up each equipment And control to optimize the equipment temperature.
  • FIG. 15 is a flowchart showing a control processing program in the air conditioning control device 61.
  • the microcomputer provided in the air-conditioning control device 61 sequentially executes the processing shown in FIG. 15 by software processing. Note that the macro computer starts the processing of the program shown in FIG. 15 when the ignition key switch of the vehicle is turned on.
  • step S1 an initial set temperature of an air conditioning cooling medium used for vehicle interior air conditioning and an equipment cooling medium used for cooling and heating the heating element 9 is determined.
  • the initial set temperature is, for example, an appropriate temperature when it is assumed that the outside air temperature is normal temperature and flat road traveling at a predetermined speed is assumed.
  • step S2 it is determined whether or not there is an air conditioning system drive command.
  • the air conditioning system drive is turned on / off by turning on / off the vehicle
  • the presence / absence of an air conditioning system drive command is determined depending on whether the vehicle on / off switch is on. If it determines with NO in step S2, the program of FIG. 15 will be complete
  • step S3 based on at least one of the vehicle driving information 64, the travel plan information 65, the detected temperature of each heating element 9 and the detected temperature of the cooling medium, the vehicle interior, each heating element 9 and the air conditioner that are to be temperature controlled are used. Predict changes in temperature of cooling medium and equipment cooling medium.
  • step S4 based on the temperature change prediction obtained in step S3, it is determined whether or not it is necessary to change the set temperatures of the air conditioning cooling medium and the equipment cooling medium.
  • step S4 If it is determined in step S4 that the change is necessary, the process proceeds to step S5, the set temperature of the cooling medium is changed, and the process proceeds to step S6. On the other hand, if the predicted temperature is calculated and it is determined that the change is not necessary, step S5 is skipped and the process proceeds to step S6.
  • step S6 each actuator of the air conditioner 60 shown in FIG. 1 is controlled so as to change the current temperature of the cooling medium based on the changed set temperature.
  • the set temperature of the cooling medium is changed in steps S4 to S6.
  • the set temperature of the heating element 9 vehicle interior, each device
  • the set temperature of the heating element 9 may be changed.
  • the vehicle state is based on detection signals from the accelerator sensor and the vehicle speed sensor as the vehicle driving information 64 and travel plan information 65 from the navigation device.
  • FIG. 16 at the time of charging, before starting running, before starting, acceleration / deceleration and before traveling on mountain road, during traveling, when traveling on ordinary road, before traveling on highway and during traveling, before temporary stop (for example, waiting for traffic lights, traffic jams, etc.)
  • the air-conditioning targets were the passenger compartment, motor, inverter, battery, and gear box.
  • the driver's intention (whether to accelerate) can be determined from the vehicle driving information 64 (vehicle speed, accelerator opening).
  • the travel plan information 65 is road information (congestion, road gradient) and destination information to the destination by the navigation device.
  • the heat generation amount of the heating element 9 is predicted from the predicted motor output and indoor air conditioning output, and the set temperature in the passenger compartment and the set temperature of the temperature control target device are changed.
  • the set temperature of the motor and inverter is lowered in advance in order to cool the motor and inverter.
  • the set temperatures of the motor and the inverter are lowered from the initial settings.
  • the initial setting is, for example, a setting that assumes general traveling on a flat road.
  • the set temperature of the battery is not changed, and the flow of the device cooling medium is controlled so as to be within a predetermined temperature range in which efficient charging / discharging can be performed, and warming or cooling is performed.
  • the exhaust temperature is recovered without changing the set temperature of the gearbox.
  • the set temperature is not changed, and warm-up / cooling is controlled so that the battery temperature during charging is within a predetermined temperature range.
  • warm-up / cooling is controlled so that the battery temperature during charging is within a predetermined temperature range.
  • the battery Before driving, it is assumed that the battery is charged by AC power while the vehicle is parked. In this case, the vehicle interior is previously cooled and heated by an AC power source so that the vehicle interior temperature is in a comfortable state at the start of traveling.
  • the motor and inverter When the vehicle is temporarily stopped, such as when waiting for traffic lights or when there is traffic, the motor and inverter generate less heat than the running state, and the temperature does not rise even if the cooling power is lower. Reduce cooling power. As a result, energy saving can be achieved.
  • the set temperature of the battery the temperature range is widened.
  • the set temperatures of the motor, inverter and battery are set in the same manner as before the temporary stop.
  • the vehicle interior / cooling and the gearbox cooling / warming are predicted to stop the vehicle drive, so that they are stopped in advance to save energy.
  • each device if the temperature of each device is close to the upper limit temperature when the vehicle interior air conditioning and the cooling and warming of each device are performed, the cooling and warming up of each device has priority over the vehicle interior air conditioning. To do.
  • the temperature change is predicted in step S3, and the set temperature (target temperature) of the cooling medium is changed based on the prediction result.
  • the vehicle state shown in FIG. 16 is predicted from the information 65, and the change of the set temperature may be determined directly from the prediction result.
  • the electric vehicle control device includes a vehicle control device 70 that controls the entire vehicle, an air conditioning control device 61 that controls the air conditioning device 60, and a braking / driving control device that controls braking / driving of the motor 73, the inverter 72, and the brake 74. 71 and a battery control device 75 that performs power management of the battery 76.
  • a vehicle control device 70 that controls the entire vehicle
  • an air conditioning control device 61 that controls the air conditioning device 60
  • a braking / driving control device that controls braking / driving of the motor 73, the inverter 72, and the brake 74.
  • 71 and a battery control device 75 that performs power management of the battery 76.
  • the air conditioning control device 61 switches the operation of the air conditioning device 60 shown in FIGS. 3 to 11 and controls the temperatures of the air conditioning cooling medium and the equipment cooling medium.
  • the outdoor fan unit 80 includes an outdoor heat exchanger 2 and an outdoor fan 3
  • the outdoor unit 81 includes a compressor 1, an intermediate heat exchanger 4, a pump 5, a four-way valve 19, a three-way valve 20, a two-way valve 21A, 21B, 21C, 21D, and expansion valves 22A, 22B, 23.
  • the indoor unit 82 includes an indoor cooling heat exchanger 6, an indoor air conditioning heat exchanger 7, an indoor fan 8, a switching damper 44, air outlets 43A, 43B, 43C, 43D.
  • the inverter 72, the motor 73, and the battery 76 are shown as the heating element 9, but some of them may be used, or another heating element 9 may be used.
  • the outdoor fan unit 80 is installed in a front grill portion of a vehicle that easily takes air outside the vehicle, and the indoor unit 82 is installed indoors in order to blow out air conditioned indoors.
  • the outdoor unit 81 is installed in a so-called engine room of the vehicle and connected between the outdoor fan unit 80 and the indoor unit 82 in order to connect to the outdoor fan unit 80, the indoor unit 82, the inverter 72, the motor 73, and the battery 76. .
  • the outdoor unit is installed in the vicinity of the inverter 72 and the motor 73. By these, piping mentioned later can be shortened.
  • a temperature sensor such as a thermistor (not shown), a pressure sensor, and the like are installed.
  • Each unit and between the units are connected by pipes such as copper pipes, aluminum pipes, rubber hoses, etc., and connections between the units and the inverter 72, the motor 73, and the battery 76, which are the heating elements 9, are joints 83A and 83B. , 83C, 83D, 83E. Accordingly, it is only necessary to connect the joints 83A, 83B, 83C, 83D, and 83E after installing each unit and the heating element 9, so that assembly work is facilitated. Further, since the motor 73 and the inverter 72 vibrate, the connection with the outdoor unit 81 may be connected with a flexible hose so that vibration is not transmitted. The outdoor fan unit 80 and the outdoor unit 81 may be installed on the vehicle via an anti-vibration rubber so that vibrations from the vehicle are not transmitted.
  • the joints 83A, 83B, 83C, 83D, and 83E are arranged in a pipe so that they can be installed in a portion close to the unit to be connected.
  • the joint 83A is installed between the outdoor fan unit 80 and the outdoor unit 81, and two pipes are installed together.
  • the joint is installed in the heat generating body 9 main body like the inverter 72, the motor 73, etc., you may make it install piping directly.
  • the outdoor unit 81 is provided with electrically driven actuators and sensors such as the compressor 1 and the pump 5. Moreover, in order to improve the performance of the air conditioner 60, it is better not to be exposed to air outside the vehicle. Therefore, the outdoor unit 81 is enclosed by a cover for the purpose of waterproofing and heat insulation.
  • the two-way valves 21A, 21B, 21C, and 21D in the outdoor unit 81 are collectively arranged so as to be close on the equipment cooling circuit 41 as shown in FIG. Since the two-way valves 21A, 21B, 21C, and 21D are electrically driven parts, wiring is facilitated by installing them together in the vicinity.
  • the two-way valves 21A, 21B, 21C, and 21D may have a single block structure.
  • a plurality of two-way valves 21A, 21B, 21C, and 21D are installed.
  • the two-way valves 21A, 21B, 21C, and 21D have a normally closed valve and a normally open valve so that the device cooling medium in the device cooling circuit 41 circulates even if the two-way valves 21A, 21B, 21C, and 21D are damaged. I will use it.
  • the two-way valve of one flow path is always a normally open valve, and the two-way valve of the other flow path is a normal close valve.
  • the two-way valves 21A and 21D as normal open valves and the two-way valves 21B and 21C as normal close valves, the device cooling medium is reliably circulated.
  • the air conditioning control device 61 can be installed in or near the outdoor unit 81, the length of the signal line can be shortened, so that the assembly can be improved and the weight can be reduced.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

La présente invention concerne un système de climatisation de véhicule permettant de simplifier la tâche de canalisation et la tâche de câblage et d'accroître l'aptitude à l'assemblage de l'ensemble du système, équipé: d'un circuit de refroidissement d'équipement pour un équipement de libération de chaleur embarqué dans le véhicule ; d'un dispositif de climatisation d'intérieur de cabine comprenant un circuit de cycle de réfrigération, d'un équipement de fluide de refroidissement d'équipement du circuit de refroidissement d'équipement ; et d'un échangeur de chaleur intermédiaire qui effectue un échange de chaleur avec le fluide de refroidissement de climatisation du circuit de cycle de réfrigération. Le système de climatisation est caractérisé en ce qu'il contient une unité intérieure, une unité extérieure, et une unité de ventilateur extérieure, qui configurent des corps séparés les uns des autres, et des conduites flexibles ou des joints reliant les unités ; l'unité intérieure étant installée dans la cabine ; l'unité extérieure étant installée dans le voisinage de l'équipement de libération de chaleur ; et l'unité de ventilateur extérieure étant installée au niveau ou à proximité de la grille avant du véhicule.
PCT/JP2011/053682 2011-02-21 2011-02-21 Système de climatisation de véhicule Ceased WO2012114426A1 (fr)

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PCT/JP2011/053682 WO2012114426A1 (fr) 2011-02-21 2011-02-21 Système de climatisation de véhicule

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015182487A (ja) * 2014-03-20 2015-10-22 カルソニックカンセイ株式会社 車両用空調装置
JP2021041779A (ja) * 2019-09-10 2021-03-18 株式会社デンソー 熱交換モジュール
WO2021169946A1 (fr) * 2020-02-25 2021-09-02 中国第一汽车股份有限公司 Système de gestion de chaleur de véhicule électrique

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08164731A (ja) * 1994-12-14 1996-06-25 Calsonic Corp 自動車用空気調和装置の防振構造
JPH08258548A (ja) * 1995-03-23 1996-10-08 Matsushita Electric Ind Co Ltd 自動車用空気調和装置
JPH09315137A (ja) * 1996-05-31 1997-12-09 Hitachi Ltd 車載用空気調和装置
JP2006017374A (ja) * 2004-06-30 2006-01-19 Toshiba Kyaria Kk マルチ形空気調和装置の切換ユニット
JP2006316754A (ja) * 2005-05-16 2006-11-24 Mitsubishi Heavy Ind Ltd 車両用電動圧縮機
JP2008126800A (ja) * 2006-11-20 2008-06-05 Valeo Thermal Systems Japan Corp 自動車用空調装置
JP2008155827A (ja) * 2006-12-25 2008-07-10 Toyota Motor Corp 車両用空調装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003336755A (ja) * 2002-05-17 2003-11-28 Fuji Koki Corp 三方弁

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08164731A (ja) * 1994-12-14 1996-06-25 Calsonic Corp 自動車用空気調和装置の防振構造
JPH08258548A (ja) * 1995-03-23 1996-10-08 Matsushita Electric Ind Co Ltd 自動車用空気調和装置
JPH09315137A (ja) * 1996-05-31 1997-12-09 Hitachi Ltd 車載用空気調和装置
JP2006017374A (ja) * 2004-06-30 2006-01-19 Toshiba Kyaria Kk マルチ形空気調和装置の切換ユニット
JP2006316754A (ja) * 2005-05-16 2006-11-24 Mitsubishi Heavy Ind Ltd 車両用電動圧縮機
JP2008126800A (ja) * 2006-11-20 2008-06-05 Valeo Thermal Systems Japan Corp 自動車用空調装置
JP2008155827A (ja) * 2006-12-25 2008-07-10 Toyota Motor Corp 車両用空調装置

Cited By (5)

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JP2015182487A (ja) * 2014-03-20 2015-10-22 カルソニックカンセイ株式会社 車両用空調装置
JP2021041779A (ja) * 2019-09-10 2021-03-18 株式会社デンソー 熱交換モジュール
WO2021049339A1 (fr) * 2019-09-10 2021-03-18 株式会社デンソー Module d'échange de chaleur
JP7287203B2 (ja) 2019-09-10 2023-06-06 株式会社デンソー 熱交換モジュール
WO2021169946A1 (fr) * 2020-02-25 2021-09-02 中国第一汽车股份有限公司 Système de gestion de chaleur de véhicule électrique

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