JP2021104726A - Temperature regulation system - Google Patents

Abstract

To reduce power consumption while properly circulating a heat medium.SOLUTION: A temperature regulation system S includes a first passage 10 in which a coolant circulates. In the first passage 10, a power part 11, a first control valve 18, a first control valve 19, a radiator 13, a branch valve 21, a confluent valve 22, and a first pump 17 are provided along a coolant circulation direction. The power regulation system S includes: a first bypass path 14 which bypasses the radiator 13; a heat accumulation part 16 which is provided at a second bypass path 15 which bypasses the radiator 13 and the first bypass path 14 and accumulates heat of the coolant. The temperature regulation system S includes a second path 20 which branches from the first passage 10 at the branch valve 21 and joins to the first passage 10 at the confluent valve 22. In the second passage 20, a heater 24, a heat exchanger 23, and a second pump 25 are provided along the coolant circulation direction.SELECTED DRAWING: Figure 1

Description

The present invention relates to a technique for adjusting the temperature of a unit.

A technique for heating a vehicle battery (heated portion) provided in a flow path by heating a heat medium circulating in the flow path using a thermoelectric heater is disclosed (for example, Patent Document 1). reference).

Special Table 2010-532066

However, in the above technique, since the heated portion is heated via the heat medium, the efficiency of heating the heated portion is low. Therefore, in order to heat the heated portion, it is necessary to supply a large amount of electric power to the thermoelectric heater.

Therefore, the present invention has been made in view of these points, and an object of the present invention is to provide a technique for reducing power consumption while appropriately circulating a heat medium.

In the first aspect of the present invention, the temperature control system mounted on the vehicle includes a first flow path through which the heat medium circulates, a power unit provided in the first flow path, and the first flow. A radiator provided on the downstream side of the power unit in the circulation direction of the path to cool the heat medium, a first detour circuit bypassing the radiator in the first flow path, and the radiator and the radiator in the first flow path. A heat storage unit provided in the second detour that bypasses the first detour and stores heat of the heat medium, and the heat medium are placed in either the radiator, the first detour, or the heat storage unit. A first control valve to be directed, and a second flow path provided so as to branch from the first flow path and join the first flow path between the heat storage unit and the power unit, and to circulate the heat medium. A second control valve that directs the heat medium from the first flow path to the second flow path, a heat exchanger provided in the second flow path, and a heat exchanger that exchanges heat with the heat medium. Provided is a temperature control system provided in the second flow path and including a heater for heating the heat medium.

For example, the temperature control system is a temperature specifying unit that specifies the temperature of the medium in the heat storage unit, which is the temperature of the heat medium in the heat storage unit, and the temperature of the medium in the heat exchanger, which is the temperature of the heat medium in the heat exchanger. When the temperature of the medium in the heat exchanger specified by the temperature specifying unit is lower than the temperature of the medium in the heat storage unit specified by the temperature specifying unit, the heat medium that has passed through the heat storage unit is passed through the second flow path. The first control valve and the control valve control unit that controls the second control valve are further provided.

For example, when the control valve control unit heats the passenger compartment of the vehicle, if the medium temperature in the heat exchanger is lower than the medium temperature in the heat storage unit, the heat medium that has passed through the heat storage unit is used as the first heat medium. The first control valve and the second control valve are controlled so as to face the two flow paths.

For example, whether or not the second control valve is provided at a branch point where the first flow path branches to the second flow path, and the heat medium is directed from the first flow path to the second flow path. A branch valve that switches between a branch valve and a junction that is provided at a confluence point where the second flow path merges with the first flow path, and switches whether or not to allow the heat medium to flow from the second flow path into the first flow path. The control valve control unit includes a valve, and controls the first control valve so that the heat medium is directed toward the heat storage unit, and the heat medium that has passed through the heat storage unit is sent to the second flow path. The branch valve is switched so as to face the second flow path, and the merging valve is switched so that the heat medium that has passed through the second flow path flows into the first flow path.

For example, the temperature control system is provided in the second flow path, further includes a pump for circulating the heat medium in the second flow path, and the control valve control unit is the heat that has passed through the heat storage unit. Before the medium reaches the merging valve, the merging valve is switched so that the heat medium does not flow into the first flow path, and the heat medium flowing through the first flow path is not directed to the second flow path. The branch valve is switched as described above, and the pump is operated so that the heat medium circulates in the second flow path.

According to the present invention, there is an effect that power consumption can be reduced while appropriately circulating the heat medium.

It is a figure which shows typically the structure of the temperature control system which concerns on this embodiment. It is a figure which shows typically the case where the cooling water circulating in a 1st flow path goes to a radiator. It is a figure which shows typically the case where the cooling water circulating in a 1st flow path goes to a heat storage part. It is a figure which shows typically the case where the cooling water circulating in a 1st flow path goes to a 1st detour. It is a figure for demonstrating the flow of the cooling water at the time of directing the cooling water from a 1st flow path to a 2nd flow path. It is a figure for demonstrating the flow of the cooling water when the cooling water is circulated in the 2nd flow path. It is a flowchart which shows typically the flow of the process which a temperature control system executes.

[Configuration of temperature control system S]
The temperature control system S is mounted on a vehicle having a power unit, and cools the power unit using a heat medium circulated between the power unit and the radiator. The heat medium is, for example, cooling water, but the heat medium is not limited to this, and other liquids may be used. In the following description, it is assumed that the heat medium is cooling water.

FIG. 1 is a diagram schematically showing a configuration of a temperature control system S according to the present embodiment. The temperature control system S includes a first flow path 10, a power unit 11, a radiator 13, a first detour 14, a second detour 15, a heat storage unit 16, a first pump 17, and a first adjustment. The valve 18, the first control valve 19, the second flow path 20 that branches from the first flow path 10 and joins the first flow path 10, the branch valve 21, the merging valve 22, and the heat exchanger 23. , A heater 24, a second pump 25, a first connection path 26, a second connection path 27, a storage unit 30, and a control unit 40.

The first flow path 10 is a flow path through which cooling water circulates. The first flow path 10 is provided with a power unit 11, a first control valve 18, a first control valve 19, a radiator 13, a branch valve 21, a merging valve 22, and a first pump 17 along the cooling water circulation direction. Has been done. The power unit 11 provided in the first flow path 10 is a power source for traveling the vehicle. The power unit 11 is, for example, a motor, but may be an engine. In the present embodiment, the power unit 11 will be described as a motor.

The radiator 13 is provided on the downstream side of the power unit 11 in the circulation direction of the cooling water of the first flow path 10, and cools the cooling water that has passed through the power unit 11. The radiator 13 has, for example, a fan for cooling the cooling water. Further, the radiator 13 may cool the cooling water by the wind from the front of the vehicle.

The first detour circuit 14 is a flow path that bypasses the radiator 13 in the circulation direction of the cooling water of the first flow path 10. Specifically, the first detour 14 branches from the first flow path 10 between the power unit 11 and the radiator 13, and joins the first flow path 10 between the radiator 13 and the first pump 17.

The second detour 15 is a flow path that bypasses the radiator 13 and the first detour 14 in the circulation direction of the cooling water of the first flow path 10. Specifically, the second detour 15 branches from the first flow path 10 between the power unit 11 and the radiator 13, and joins the first flow path 10 between the radiator 13 and the first pump 17.

The heat storage unit 16 is provided in the second detour circuit 15 and stores the heat of the cooling water. The heat storage unit 16 includes, for example, a heat-insulated container, and a predetermined amount of cooling water can be stored in the heat-insulated container. In this way, the heat storage unit 16 stores the heat of the cooling water by storing the cooling water in the container. The insulated container is, for example, a container having a double structure including an inner bottle and an outer bottle, and a container (so-called thermos bottle) in which the space between the inner bottle and the outer bottle is filled with a gas having a pressure lower than the normal atmospheric pressure.

The first pump 17 is provided on the upstream side of the power unit 11 in the circulation direction of the cooling water of the first flow path 10, and circulates the cooling water in the first flow path 10. When the first pump 17 operates, the cooling water circulates in the first flow path 10. The first pump 17 may be provided in a place where the cooling water of the first flow path 10 can be circulated. For example, the first pump 17 is on the downstream side of the power unit 11 in the circulation direction of the cooling water of the first flow path 10. It may be provided in.

The first control valve 18 and the first control valve 19 are control valves that direct the cooling water to the radiator 13, the first detour circuit 14, or the heat storage unit 16. The first control valve 18 is provided at a branch point where the first flow path 10 is branched between the power unit 11 and the radiator 13. The first control valve 18 switches whether the cooling water that has passed through the power unit 11 heads for the first control valve 19 or the first detour. Further, the first control valve 18 may adjust the flow rate of the cooling water toward the first detour.

The first control valve 19 is provided at a branch point where the first flow path 10 is branched between the radiator 13 and the second detour. The first control valve 19 switches whether the cooling water that has passed through the power unit 11 heads for the radiator 13 or the second detour. Further, the first control valve 19 may adjust the flow rate of the cooling water toward the second detour.

The branch valve 21 is provided at a branch point where the first flow path 10 branches to the second flow path 20. The branch point is provided so as to branch from the first flow path 10 to the first connection path 26 between the heat storage unit 16 and the power unit 11. The branch valve 21 switches whether or not to direct the cooling water from the first flow path 10 to the second flow path 20. Further, the branch valve 21 may adjust the flow rate of the cooling water from the first flow path 10 to the second flow path 20.

The merging valve 22 is provided at a merging point where the second flow path 20 joins the first flow path 10. The merging point is provided so that the second connecting path 27 joins the first flow path 10 between the branch valve 21 and the power unit 11. The merging valve 22 switches whether or not to allow cooling water to flow from the second flow path 20 to the first flow path 10. Further, the merging valve 22 may adjust the flow rate of the cooling water flowing from the second flow path 20 into the first flow path 10. The branch valve 21 and the merging valve 22 function as a second control valve that directs the cooling water from the first flow path 10 to the second flow path 20.

The second flow path 20 is a flow path through which cooling water circulates. The second flow path 20 is provided so as to branch from the first flow path 10 at the branch valve 21 and join the first flow path 10 at the merging valve 22. Specifically, the second flow path 20 is connected to the first flow path 10 via the first connection path 26 and the second connection path 27. The second flow path 20 is provided with a heater 24, a heat exchanger 23, and a second pump 25 along the circulation direction of the cooling water. However, the heater 24, the heat exchanger 23, and the second pump 25 are arranged. The order is not limited to this.

The heat exchanger 23 is provided in the second flow path 20 and exchanges heat with the cooling water. The heat exchanger 23 has, for example, a fan that promotes heat exchange with cooling water, and is operated between the air passing through the heat exchanger 23 and the cooling water passing through the heat exchanger 23 by operating the fan. Exchange heat.

The heater 24 is provided in the second flow path 20 and heats the cooling water. The heater 24 is, for example, a PTC (Positive Temperature Coefficient) heater, but the heater 24 is not limited to this, and other heaters may be used. The second pump 25 is provided in the second flow path 20 and circulates the cooling water in the second flow path 20. When the second pump 25 operates, the cooling water circulates in the second flow path 20. The second pump 25 may be provided at a place where the cooling water of the second flow path 20 can be circulated.

The cooling water (hot water) heated by the heater 24 circulates in the second flow path 20 by the second pump 25. The cooling water (hot water) heated by the heater 24 and the air exchange heat in the heat exchanger 23 to heat the air passing through the heat exchanger 23. Then, the temperature control system S can heat the passenger compartment by sending the warmed air to the passenger compartment of the vehicle.

The storage unit 30 is a storage medium including a ROM (Read Only Memory), a RAM (Random Access Memory), a hard disk, and the like. The storage unit 30 stores a program executed by the control unit 40.

The control unit 40 is a computing resource including a processor such as a CPU (Central Processing Unit). The control unit 40 realizes the functions as the temperature specifying unit 41 and the control valve control unit 42 by executing the program stored in the storage unit 30.

The temperature specifying unit 41 includes a temperature sensor for measuring the temperature, and specifies the temperature of the cooling water circulating in the first flow path 10. The temperature specifying unit 41 specifies the medium temperature in the heat storage unit, which is the temperature of the cooling water in the heat storage unit 16, by a temperature sensor provided so as to measure the temperature of the cooling water stored in the heat storage unit 16. The temperature specifying unit 41 specifies the medium temperature in the heat exchanger, which is the temperature of the cooling water in the heat exchanger 23, by a temperature sensor provided so as to measure the temperature of the cooling water in the heat exchanger 23. Further, the temperature specifying unit 41 specifies the outlet medium temperature, which is the temperature of the cooling water at the outlet of the power unit 11, by the temperature sensor provided at the outlet of the power unit 11.

The control valve control unit 42 controls the flow of cooling water by controlling the first control valve 18, the first control valve 19, the branch valve 21, and the merging valve 22.

(When the passenger compartment of the vehicle is not heated)
When the passenger compartment of the vehicle is not heated, the control valve control unit 42 controls the first control valve 18 and the first control valve 19 based on the outlet medium temperature specified by the temperature specifying unit 41 and the medium temperature in the heat storage unit. As a result, the cooling water is directed to either the radiator 13, the first detour circuit 14, or the heat storage unit 16. When the cooling water is circulated in the first flow path 10, the control valve control unit 42 switches between the branch valve 21 and the merging valve 22 so that the cooling water flowing through the first flow path 10 is not directed to the second flow path 20. .. In this case, the control valve control unit 42 does not operate the second pump 25. The cooling water in the second flow path 20 stays without circulating.

When the outlet medium temperature is equal to or higher than the upper limit temperature at which the power unit 11 can be used, the control valve control unit 42 switches between the first control valve 18 and the first control valve 19 so as to direct the cooling water to the radiator 13. The upper limit temperature may be appropriately determined by the business operator, for example, 100 degrees Celsius. FIG. 2 is a diagram schematically showing a case where the cooling water circulating in the first flow path 10 goes to the radiator 13. In FIG. 2, the thick solid line indicates that the cooling water is flowing, and the thin broken line indicates that the cooling water is not flowing or the cooling water is retained.

As shown in FIG. 2, the cooling water passes through the radiator 13 and circulates. In this case, the cooling water does not flow through the first detour 14 and the second detour 15. By doing so, the temperature control system S can cool the cooling water that has passed through the power unit 11 and has reached the upper limit temperature or higher by the radiator 13.

When the outlet medium temperature is less than the upper limit temperature and the medium temperature in the heat storage unit specified by the temperature specifying unit 41 is lower than the outlet medium temperature, the control valve control unit 42 first directs the cooling water to the heat storage unit 16. The control valve 18 and the first control valve 19 are switched. FIG. 3 is a diagram schematically showing a case where the cooling water circulating in the first flow path 10 goes to the heat storage unit 16. As shown in FIG. 3, the cooling water passes through the heat storage unit 16 and circulates. By doing so, the temperature control system S can store the cooling water (hot water) heated by passing through the power unit 11 in the heat storage unit 16, so that heat can be stored in the heat storage unit 16. ..

When the outlet medium temperature is lower than the upper limit temperature and the medium temperature in the heat storage section is equal to or higher than the outlet medium temperature, the control valve control unit 42 adjusts the first control valve 18 and the first control valve 18 so that the cooling water goes to the first detour 14. Switch the valve 19. FIG. 4 is a diagram schematically showing a case where the cooling water circulating in the first flow path 10 heads for the first detour. As shown in FIG. 4, the cooling water circulates through the first detour circuit 14.

(When heating the passenger compartment of a vehicle)
When the temperature control system S heats the passenger compartment of the vehicle, the cooling water (hot water) stored in the heat storage unit 16 flows into the second flow path 20, and the flowing cooling water (hot water) flows into the second flow path. Circulate at 20. Hereinafter, a case where the temperature control system S circulates the cooling water (hot water) stored in the heat storage unit 16 in the second flow path 20 will be described.

The control valve control unit 42 sets the first control valve 18, the first control valve 19, the branch valve 21, and the merging valve 22 based on the medium temperature in the heat exchanger specified by the temperature specification unit 41 and the medium temperature in the heat storage unit. Control. Specifically, when the temperature of the medium in the heat exchanger specified by the temperature specifying unit 41 is lower than the temperature of the medium in the heat storage unit, the control valve control unit 42 passes the cooling water that has passed through the heat storage unit 16 to the second flow path 20. The first control valve 18, the first control valve 19, the branch valve 21, and the merging valve 22 are controlled so as to face the direction. Hereinafter, a specific method for directing the cooling water that has passed through the heat storage unit 16 to the second flow path 20 will be described.

First, the control valve control unit 42 determines whether or not the medium temperature in the heat exchanger is lower than the medium temperature in the heat storage unit when heating the vehicle interior of the vehicle. When the medium temperature in the heat exchanger is lower than the medium temperature in the heat storage unit, the control valve control unit 42 directs the cooling water that has passed through the heat storage unit 16 to the second flow path 20, the first control valve 18, the first control valve 18. The control valve 19, the branch valve 21, and the merging valve 22 are controlled. Specifically, the control valve control unit 42 controls the first control valve 18 and the first control valve 19 so that the cooling water that has passed through the power unit 11 goes to the heat storage unit 16. Then, the control valve control unit 42 switches the branch valve 21 so that the cooling water that has passed through the heat storage unit 16 is directed to the second flow path 20, and the cooling water that has passed through the second flow path 20 is transferred to the first flow path 10. The merging valve 22 is switched so as to flow into the water.

FIG. 5 is a diagram for explaining the flow of the cooling water when the cooling water is directed from the first flow path 10 to the second flow path 20. As shown in FIG. 5, the cooling water that has passed through the power unit 11 flows into the heat storage unit 16. Then, the cooling water flowing into the heat storage unit 16 pushes out the cooling water (hot water) stored in the heat storage unit 16, and the cooling water (warm water) stored in the heat storage unit 16 flows out to the first flow path 10. The cooling water (warm water) that has flowed out to the first flow path 10 goes from the first flow path 10 to the first connection path 26 by the branch valve 21, passes through the first connection path 26, and flows into the second flow path 20. .. Then, the cooling water (warm water) flowing into the second flow path pushes out the cooling water in the second flow path 20, and the cooling water in the second flow path 20 passes through the second connection path 27 and joins the valve 22. Flows into the first flow path 10.

The control valve control unit 42 joins the branch valve 21 so that the cooling water (hot water) is circulated in the second flow path 20 after the hot water stored in the heat storage unit 16 flows into the second flow path 20. Switch to 22. Specifically, the control valve control unit 42 supplies the cooling water (hot water) to the first flow path before the cooling water (hot water) flowing into the second flow path 20 from the first flow path 10 reaches the merging valve 22. The merging valve 22 is switched so as not to flow into the first flow path 10, and the branch valve 21 is switched so as not to direct the cooling water flowing through the first flow path 10 toward the second flow path 20. Then, the control valve control unit 42 operates the second pump 25 so that the cooling water (hot water) circulates in the second flow path 20.

FIG. 6 is a diagram for explaining the flow of the cooling water when the cooling water is circulated in the second flow path 20. In FIG. 6, the thick solid line indicates that the cooling water is flowing, and the thin broken line indicates that the cooling water is not flowing. As shown in FIG. 6, the cooling water (warm water) stored in the heat storage unit 16 that has flowed into the second flow path 20 from the first flow path 10 circulates in the second flow path 20.

By doing so, the temperature control system S can transfer the heat stored in the heat storage unit 16 to the heat exchanger 23 provided in the second flow path 20 via the cooling water. Therefore, the temperature control system S can heat the passenger compartment of the vehicle by using the heat stored in the heat storage unit 16 without operating the heater 24. As a result, the temperature control system S can reduce the power consumption for operating the heater 24. In FIG. 6, the temperature control system S allows the cooling water of the first flow path 10 to pass through the first detour, but is not limited to this, and the temperature control system S may also pass through the radiator 13 or the heat storage unit 16. good.

[Flow of processing executed by the temperature control system S]
Hereinafter, the flow of processing executed by the temperature control system S will be described with reference to FIG. 7. FIG. 7 is a flowchart schematically showing a flow of processing executed by the temperature control system S. The flowchart of FIG. 7 is executed while heating the passenger compartment of the vehicle in which the temperature control system S is mounted.

First, the temperature specifying unit 41 specifies the medium temperature in the heat exchanger and the medium temperature in the heat storage unit (step S1). Subsequently, the control valve control unit 42 determines whether or not the medium temperature in the heat exchanger specified by the temperature specifying unit 41 is lower than the medium temperature in the heat storage unit (step S2).

When the medium temperature in the heat exchanger is lower than the medium temperature in the heat storage unit (Yes in step S2), the control valve control unit 42 first directs the cooling water that has passed through the heat storage unit 16 to the second flow path 20. The control valve 18, the first control valve 19, the branch valve 21, and the merging valve 22 are controlled. Specifically, first, the control valve control unit 42 switches between the first control valve 18 and the first control valve 19 so that the cooling water that has passed through the power unit 11 goes to the heat storage unit 16 (step S3). Next, the control valve control unit 42 switches the branch valve 21 so that the cooling water (hot water) stored in the heat storage unit 16 faces the second flow path 20, and the cooling water in the second flow path 20 flows into the first flow. The merging valve 22 is switched so as to flow into the road 10 (step S4).

Then, the control valve control unit 42 prevents the cooling water (warm water) from flowing into the first flow path 10 before the cooling water (hot water) flowing into the second flow path 20 reaches the merging valve 22. The branch valve 21 is switched so that the cooling water flowing through the first flow path 10 does not direct to the second flow path 20 (step S5). The control valve control unit 42 may switch the branch valve 21 after switching the merging valve 22 as long as the cooling water (hot water) does not reach the merging valve 22, and the merging valve 21 may be switched after switching the branch valve 21. 22 may be switched, and the branch valve 21 and the merging valve 22 may be switched at the same time.

Then, after switching the branch valve 21 and the merging valve 22, the control valve control unit 42 operates the second pump 25 so that the cooling water (hot water) circulates in the second flow path 20 (step S6). In this way, since the temperature control system S circulates the cooling water in the second flow path 20, the cooling water in the heat exchanger 23 can be replaced. Therefore, since the temperature control system S can moderate the temperature drop of the cooling water circulating in the second flow path 20, the passenger compartment of the vehicle can be heated for a longer time than when the cooling water in the second flow path 20 is not circulated. ..

When the medium temperature in the heat exchanger is equal to or higher than the medium temperature in the heat storage unit (No in step S2), the control valve control unit 42 operates the second pump 25 so that the cooling water circulates in the second flow path 20. After that, the heater 24 is operated (step S7). The control valve control unit 42 may operate the second pump 25 after operating the heater 24, or may operate the second pump 25 and the heater 24 at the same time.

The temperature control system S performs the above processing while heating the passenger compartment of the vehicle. By doing so, the temperature control system S heats the cooling water (hot water) stored in the heat storage unit 16 until the temperature of the cooling water stored in the heat storage unit 16 becomes equal to or lower than the temperature of the heat exchanger 23. Can be used to heat the passenger compartment of a vehicle. Then, since the temperature control system S does not have to operate the heater 24 while using the heat of the cooling water (hot water) stored in the heat storage unit 16, the power consumption for operating the heater 24 can be reduced.

[Effect of temperature control system S according to this embodiment]
As described above, the temperature control system S includes a first flow path 10 through which cooling water circulates, and bypasses the radiator 13 and the radiator 13 on the downstream side of the power unit 11 in the circulation direction of the first flow path 10. Either the first detour 14, the heat storage unit 16 that stores the heat of the cooling water provided in the second detour 15 that bypasses the radiator 13 and the first detour 14, and the radiator, the first detour, or the heat storage unit. It is provided with first control valves 18 and 19 for directing cooling water to the radiator. The temperature control system S includes a second flow path 20 through which cooling water circulates. The second flow path 20 is provided so as to branch from the first flow path 10 between the heat storage unit 16 and the power unit 11 and join the first flow path 10, and the second flow path 20 has a branch valve 21. A merging valve 22, a heat exchanger 23, a heater 24, and a second pump 25 are provided.

When the medium temperature in the heat exchanger is lower than the medium temperature in the heat storage unit, the temperature control system S includes the first control valves 18 and 19 so as to direct the cooling water that has passed through the heat storage unit 16 to the second flow path 20. , The branch valve 21 and the merging valve 22 are switched. By doing so, the temperature control system S can transfer the heat stored in the heat storage unit 16 to the heat exchanger 23 provided in the second flow path 20 via the cooling water. Therefore, the temperature control system S can heat the passenger compartment of the vehicle by using the heat stored in the heat storage unit 16 without operating the heater 24, so that the power consumption for operating the heater 24 can be reduced. Can be done.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments, and various modifications and changes can be made within the scope of the gist thereof. be. For example, all or a part of the device can be functionally or physically distributed / integrated in any unit. Also included in the embodiments of the present invention are new embodiments resulting from any combination of the plurality of embodiments. The effect of the new embodiment produced by the combination also has the effect of the original embodiment.

10 1st flow path 11 Power unit 13 Radiator 14 1st detour 15 2nd detour 16 Heat storage unit 17 1st pump 18 1st control valve 19 1st control valve 20 2nd flow path 21 Branch valve 22 Confluence valve 23 Heat Exchanger 24 Heater 25 2nd pump 26 1st connection path 27 2nd connection path 30 Storage unit 40 Control unit 41 Temperature specification unit 42 Control valve control unit S Temperature control system

Claims (5)

A temperature control system installed in a vehicle
The first flow path through which the heat medium circulates,
The power unit provided in the first flow path and
A radiator provided on the downstream side of the power unit in the circulation direction of the first flow path and cooling the heat medium, and
A first detour that bypasses the radiator in the first flow path,
A heat storage unit provided in the radiator and a second detour that bypasses the first detour in the first flow path and stores heat of the heat medium, and a heat storage unit.
A first control valve that directs the heat medium to either the radiator, the first detour, or the heat storage section.
A second flow path provided so as to branch from the first flow path and join the first flow path between the heat storage unit and the power unit, and to circulate the heat medium.
A second control valve that directs the heat medium from the first flow path to the second flow path,
A heat exchanger provided in the second flow path and exchanging heat with the heat medium.
A heater provided in the second flow path and heating the heat medium,
A temperature control system equipped with. A temperature specifying unit that specifies the temperature of the medium in the heat storage unit, which is the temperature of the heat medium in the heat storage unit, and the temperature of the medium in the heat exchanger, which is the temperature of the heat medium in the heat exchanger.
When the temperature of the medium in the heat exchanger specified by the temperature specifying unit is lower than the temperature of the medium in the heat storage unit specified by the temperature specifying unit, the heat medium that has passed through the heat storage unit is directed toward the second flow path. A control valve control unit that controls the first control valve and the second control valve so as to be displaced.
The temperature control system according to claim 1. When the control valve control unit heats the passenger compartment of the vehicle, if the medium temperature in the heat exchanger is lower than the medium temperature in the heat storage unit, the heat medium that has passed through the heat storage unit is passed through the heat storage unit to the second flow. Control the first control valve and the second control valve so as to face the road.
The temperature control system according to claim 2. The second control valve is
A branch valve provided at a branch point for branching from the first flow path to the second flow path, and switching whether or not to direct the heat medium from the first flow path to the second flow path.
A confluence valve provided at a confluence point where the second flow path merges with the first flow path and switches whether or not to allow the heat medium to flow from the second flow path into the first flow path is included.
The control valve control unit
The first control valve is controlled so that the heat medium is directed toward the heat storage unit.
The branch valve is switched so that the heat medium that has passed through the heat storage unit is directed to the second flow path, and the heat medium that has passed through the second flow path is merged so as to flow into the first flow path. Switch the valve,
The temperature control system according to claim 2 or 3. A pump provided in the second flow path and circulating the heat medium in the second flow path is further provided.
The control valve control unit
Before the heat medium that has passed through the heat storage unit reaches the merging valve, the merging valve is switched so that the heat medium does not flow into the first flow path, and the heat medium flowing through the first flow path is transferred to the first flow path. Switch the branch valve so that it does not go to the second flow path,
The pump is operated so that the heat medium circulates in the second flow path.
The temperature control system according to claim 4.

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