Heat Storage Management System

Abstract

To prevent missing an opportunity of increasing a heat storage amount which occurs due to changes in the peripheral environment, in a heat storage management system installed to a movable body.SOLUTION: A heat storage management system is a system installed to a movable body and includes: a heat medium circuit through which a heat medium circulates; a heat storage part for storing heat via the heat medium; a heat generating part for radiating heat to the heat medium; and a control device for controlling a heat storage amount of the heat storage part. The control device performs heat storage amount increase control on the basis of environmental information advantageous for heat storage when storing heat in the heat storage part.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a thermal storage management system. [Background technology]

[0002] Conventionally, in a heat storage management system for a mobile body such as an electric vehicle (EV), a battery, which is a driving power source, is used as a heat storage unit while controlling the temperature of the battery (see Patent Document 1 below). The heat stored in the battery is used for air conditioning or the like by exchanging heat with a refrigerant in a heat pump (refrigerant circuit) via a heat medium circuit for controlling the battery temperature. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2014-37180 A Summary of the Invention [Problem to be solved by the invention]

[0004] In a heat storage management system mounted on a moving body such as an electric vehicle, the surrounding environment of the system changes as the vehicle moves. This change in the surrounding environment can sometimes be advantageous for a system that stores heat. For example, when a vehicle passes through a tunnel, the outside air temperature inside the tunnel is often higher than outside the tunnel. If the heat from this increase in the outside air temperature can be taken in and stored in the system, this will be advantageous for the heat management of the system. Also, when an electric vehicle travels uphill, the load on the drive motor increases and the amount of exhaust heat increases. If this exhaust heat can be taken in and stored in the system, this will be advantageous for the heat management of the system.

[0005] However, conventional heat storage management systems do not take special measures to deal with such changes in the surrounding environment, and there is a problem in that they miss opportunities to increase the amount of heat storage that accompanies changes in the surrounding environment.

[0006] In addition, conventional heat storage management systems use a battery, which is the driving power source, as the heat storage unit, and prioritize managing the battery temperature at an appropriate temperature.As a result, even if there is an opportunity to increase the amount of stored heat due to changes in the surrounding environment as described above, there is a problem that there is a limit to how much the stored heat can be increased at the managed temperature of the battery, which is prioritized.

[0007] The present invention aims to address such problems. That is, the present invention aims to prevent a heat storage management system to be mounted on a mobile body from missing an opportunity to increase the amount of heat storage caused by a change in the surrounding environment. [Means for solving the problem]

[0008] In order to solve such problems, the present invention has the following configuration. A heat storage management system that is mounted on a moving body and includes a heat medium circuit through which a heat medium circulates, a heat storage section in which heat is stored via the heat medium, a heat generating section that dissipates heat to the heat medium, and a control device that controls the amount of heat stored in the heat storage section, wherein the control device controls to increase the amount of heat stored in the heat storage section based on environmental information that is favorable for heat storage when storing heat in the heat storage section. Effect of the Invention

[0009] The heat storage management system of the present invention, which has such characteristics, detects environmental information that is favorable for heat storage and controls to increase the amount of heat storage, so that it does not miss opportunities to increase the amount of heat storage that occurs due to changes in the surrounding environment, but rather increases the amount of heat storage and effectively utilizes the stored heat. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is an explanatory diagram showing an example of a circuit configuration when storing heat in a heat storage management system according to an embodiment of the present invention. [Diagram 2]FIG. 2 is an explanatory diagram for explaining a control device of a heat storage management system according to an embodiment of the present invention ((a) shows input and output of the control device, and (b) shows functions of the control device). [Diagram 3] FIG. 2 is an explanatory diagram of a heat storage mode in the circuit configuration of FIG. 1. [Figure 4] FIG. 2 is an explanatory diagram of a heat storage utilization mode in the circuit configuration of FIG. 1. [Diagram 5] FIG. 2 is an explanatory diagram of a heat storage increase mode in the circuit configuration of FIG. 1. [Figure 6] 1A and 1B are explanatory diagrams showing an example of a circuit configuration when storing cold heat in a heat storage management system according to an embodiment of the present invention ((a) shows a heat storage mode, and (b) shows a heat storage utilization mode). [Figure 7] FIG. 4 is a flow diagram showing a basic control algorithm of the control device. [Figure 8] FIG. 4 is an explanatory diagram showing an example of a control flow of the control device. [Figure 9] FIG. 2 is an explanatory diagram showing an example of a system configuration of a control device provided in an electric vehicle. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the following description, the same reference numerals in different drawings indicate parts having the same function, and duplicated descriptions in each drawing will be omitted as appropriate.

[0012] As shown in FIG. 1, a heat storage management system 1 according to an embodiment of the present invention is a system mounted on a moving body such as a vehicle or a ship, and includes a heat medium circuit 2 through which a heat medium circulates, a heat storage section 3 in which heat is stored via the heat medium, and a heat generating section 4 that dissipates heat to the heat medium.

[0013] The heat medium circuit 2 includes pumps P (P1, P2, P3) that circulate the heat medium, and switching valves V (V1, V2, V3) that switch the flow path of the heat medium circuit 2 according to various control modes. The heat medium circuit 2 also includes heat exchange units T (T1, T2, T3, T4, T5, T6) for exchanging heat with the heat medium.

[0014] In the illustrated example, the heat exchanger T1 is for the heat medium to exchange heat with the heat storage section 3, and the heat exchanger T2 is for the heat medium to exchange heat with the heat generating section 4. The heat exchanger T3 is provided in the indoor air conditioner 5 for the heat medium to exchange heat with the indoor air, and the heat exchanger T4 is for the heat medium to exchange heat with the outside air blown by the fan 6 (a radiator).

[0015] The heat exchange units T5 and T6 are refrigerant-heat medium heat exchangers in which the refrigerant and heat medium exchange heat in the heat pump type refrigerant circuit 10. The heat exchange unit T5 functions as a radiator in the refrigerant circuit 10, and the heat of the refrigerant is released to the heat medium. The heat exchange unit T6 functions as a heat absorber in the refrigerant circuit 10, and the heat of the heat medium is absorbed by the refrigerant. The refrigerant circuit 10 includes a compressor 11 that compresses the refrigerant and sends it to the heat exchange unit T5, and a pressure reducing device (such as an expansion valve) 12 that reduces the pressure of the compressed refrigerant and sends it to the heat exchange unit T6.

[0016] In the heat storage management system 1, the heat storage unit 3 is, for example, a battery for driving an electric vehicle (EV). During heat storage, when heat is released from the heat medium to the heat storage unit 3, the heat storage unit 3 is heated, and during heat storage utilization, when the heat medium absorbs the heat stored in the heat storage unit 3, the heat storage unit 3 is cooled. As a result, the battery as the heat storage unit 3 is adjusted to a predetermined temperature by appropriately repeating heat storage and heat utilization.

[0017] In the heat storage management system 1, the heat generating part 4 is, for example, a motor, an inverter, a PCU (Power Control Unit), etc. that generate heat when driven in an electric vehicle (EV). The above-mentioned refrigerant circuit 10 functions as a heat generating part in that it has a function of dissipating heat to the heat medium circulating in the heat medium circuit 2.

[0018] 2(a), the heat storage management system 1 includes a control device 20 that controls the amount of heat stored in the heat storage unit 3. The control device 20 controls the amount of heat storage by changing a control mode based on input data such as environmental information that changes with the movement of the mobile object, and controls the switching valve V, the compressor 11 and pressure reducing device 12 of the refrigerant circuit 10, the pump P, the indoor air conditioner 5, the fan 6, and the like.

[0019] The control modes by the control device 20 are switching control among a heat storage mode, a heat storage utilization mode, and a heat storage increase mode, as shown in Fig. 2(b). Here, the transition from the heat storage mode to the heat storage increase mode is referred to as heat storage amount increase control performed by the control device 20.

[0020] 3 to 5 show switching states of the heat medium circuit 2 in the heat storage mode, the heat storage utilization mode, and the heat storage increase mode in the case of storing hot heat. In the figures, the thick black lines with arrows indicate the heat medium flow paths in which the heated heat medium flows in the direction of the arrow, the thick gray lines with arrows indicate the heat medium flow paths in which the cooled heat medium flows in the direction of the arrow, and the thick double lines with arrows indicate the refrigerant flow paths of the refrigerant circuit 10. Also, the thin dashed lines indicate the heat medium flow paths in the unused state. In the illustrated switching valves V2 and V3, the white painted areas indicate the open state of the valves, and the black painted areas indicate the closed state of the valves.

[0021] In the heat storage mode, as shown in FIG. 3, the heat medium circuit 2 becomes independent circuits of a first heat medium circuit 21, a second heat medium circuit 22, and a third heat medium circuit 23 by switching the switching valve V (V1 to V3).

[0022] The first heat medium circuit 21 forms a circulation flow path in which the heat medium returns to the pump P1 via the pump P1, the heat exchanger T1, the heat exchanger T2, the switching valve V2, and the switching valve V1. In the first heat medium circuit 21, the heat medium that has absorbed heat from the heat generating unit 4 in the heat exchanger T2 flows to the heat exchanger T1, and the heat absorbed in the heat medium is dissipated to the heat storage unit 3 in the heat exchanger T1.

[0023] The second heat medium circuit 22 forms a circulation flow path in which the heat medium returns to the pump P2 via the pump P2, the heat exchanger T5, the heat exchanger T3, and the switching valve V1. In the second heat medium circuit 22, the heat medium that has absorbed heat from the refrigerant in the heat exchanger T5 flows to the heat exchanger T3, and the heat absorbed in the heat medium is released to the air in the indoor air conditioner 5 in the heat exchanger T3.

[0024] The third heat medium circuit 23 forms a circulation flow path in which the heat medium returns to the pump P3 via the pump P3, the heat exchanger T6, the switching valve V3, and the heat exchanger T4. In the third heat medium circuit 23, the heat medium whose heat has been absorbed by the refrigerant in the heat exchanger T6 flows to the heat exchanger T4, and absorbs heat from the outside air in the heat exchanger T4.

[0025] In the heat storage mode shown in FIG. 3 , the heat generated in the heat generating section 4 is stored in the heat storage section 3 by the circulation of the heat medium in the first heat medium circuit 21, the heat dissipated from the refrigerant in the refrigerant circuit 10 by the circulation of the heat medium in the second heat medium circuit 22, the heating operation of the indoor air conditioner 5 is performed, and the heat medium is circulated in the third heat medium circuit 23, the heat of the outside air is absorbed by the refrigerant in the refrigerant circuit 10.

[0026] In the heat storage utilization mode, as shown in FIG. 4, the heat medium circuit 2 becomes independent circuits of the second heat medium circuit 22 and the fourth heat medium circuit 24 by switching the selector valve V (V1 to V3).

[0027] The fourth heat medium circuit 24 forms a circulation flow path in which the heat medium returns to the pump P1 via the pump P1, the heat exchanger T1, the heat exchanger T2, the switching valve V2, the pump P3, the heat exchanger T6, the switching valve V3, and the switching valve V1. In the fourth heat medium circuit 24, the heat stored in the heat storage unit 3 is taken into the heat medium in the heat exchanger T1, and the heat generated in the heat generating unit 4 is taken into the heat medium in the heat exchanger T2, and the heat taken into the heat medium is absorbed by the refrigerant in the heat exchanger T6. In the heat storage utilization mode shown in FIG. 4, the heat stored in the heat storage unit 3 and the heat generated in the heat generating unit 4 are absorbed by the refrigerant via the heat medium, and the indoor air conditioner 5 is operated in a heating mode by the heat dissipation of the refrigerant circuit 10.

[0028] In the heat storage increase mode, as shown in FIG. 5, the heat medium circuit 2 becomes independent circuits of the third heat medium circuit 23 and the fifth heat medium circuit 25 by switching the switching valve V (V1 to V3).

[0029] The fifth heat medium circuit 25 forms a circulation flow path in which the heat medium returns to the pump P1 via the pump P1, the heat exchanger T1, the heat exchanger T2, the switching valve V2, the switching valve V1, the pump P2, the heat exchanger T5, the heat exchanger T3, and the switching valve V1. In the fifth heat medium circuit 25, the heat generated in the heat generating section 4 is taken into the heat medium in the heat exchanger T2, the heat released from the refrigerant circuit 10 is taken into the heat medium in the heat exchanger T5, and the remaining heat used for heating the indoor air conditioner 5 in the heat exchanger T3 is stored in the heat storage section 3 in the heat exchanger T1. In the heat storage increase mode shown in FIG. 5, compared to the heat storage mode shown in FIG. 3, the heat released from the refrigerant circuit 10 that was not used for heating is additionally stored in the heat storage section 3, so that the amount of heat stored is increased compared to the heat storage mode.

[0030] Fig. 1 shows a circuit configuration for storing hot heat, but a heat storage management system 1 having a circuit as shown in Fig. 6 can store cold heat in a heat storage section 3. In this case, the heat medium circuit 2 includes a pump P (P10, P11) for circulating the heat medium, and a switching valve V (V10, V11) for switching the flow path of the heat medium circuit 2 according to various control modes. The heat medium circuit 2 also includes heat exchange sections T (T10, T11, T12, T13, T14) for exchanging heat with the heat medium.

[0031] In the example of FIG. 6, the heat exchange section T10 is for the heat medium to exchange heat with the heat storage section 3, the heat exchange section T11 is for the heat medium to exchange heat with the outside air blown by the fan 6 (a radiator), the heat exchange sections T12 and T13 are for the heat medium to exchange heat with the refrigerant in the refrigerant circuit 10, and the heat exchange section T14 is provided as a cooler core in the indoor air conditioner 5 so that the heat medium can exchange heat with the indoor air.

[0032] In the heat storage management system 1 shown in FIG. 6, the heat medium circuit 2 can be switched between the heat storage mode (cold heat) shown in FIG. 6(a) and the heat storage utilization mode (cold heat) shown in FIG. 6(b) by switching the switching valve V (V10, V11) under the control of the control device shown in FIG. 2.

[0033] In the heat storage mode (cold heat), the heat medium that has been cooled through heat exchanger T13 functioning as a heat absorber in the refrigerant circuit 10 radiates cold heat in heat exchanger T14 of the indoor air conditioner 5, and the remaining cold heat is stored in the heat storage section 3 through heat exchanger T10. In addition, the heat medium that has been heated through heat exchanger T12 functioning as a radiator in the refrigerant circuit 10 radiates warm heat to the outside air through heat exchanger T11.

[0034] In the heat storage utilization mode (cold heat), the heat medium that has been cooled through the heat exchanger T13 releases cold heat in the heat exchanger T14 of the indoor air conditioner 5, and the cold heat stored in the heat storage unit 3 cools the refrigerant in the heat exchanger T12. At this time, the refrigerant that has exchanged heat with the heat medium in the heat exchanger T12 is cooled more than in the heat storage mode (cold heat) in which heat is released to the outside air through the heat exchanger T11, which promotes a drop in the high pressure in the refrigerant circuit and makes it possible to reduce the power consumption of the refrigerant circuit 10 during cooling operation.

[0035] In addition, the heat storage increase mode in the heat storage management system 1 shown in Figure 6 is executed by the control of the control device 20, and in the above-mentioned heat storage mode (cold heat), the cold storage function is increased by increasing the rotation speed of the compressor 11 in the refrigerant circuit 10, the rotation speed of the pump P (P10, P11), and the rotation speed of the fan 6.

[0036] The transition from the heat storage mode to the heat storage increase mode (heat storage amount increase control) by the control device 20 is executed based on the algorithm shown in Fig. 7. That is, when the control device 20 detects a change in environmental conditions based on input data (step S1), it judges whether or not the change in environmental conditions is advantageous for heat storage in the heat storage management system 1 (step S2), and if it is not advantageous (step S2: NO), it ends the control, and if it is advantageous (step S2: YES), it executes heat storage amount increase control (step S3).

[0037] A specific example of control will be described for each type of input data.

[0038] First, when the input data is the outside air temperature and heat is stored using the circuit configuration of the heat storage management system 1 shown in FIG. 1, if a change in the outside air temperature is detected in step S1, then in step S2, it is determined whether any of the following conditions (conditions 1A to 1C) is met, and if the condition is satisfied, it is determined that there is an advantage (step S2: YES).

[0039] Condition 1A: High outside temperature (Current outside temperature)>Set value (e.g. 15℃) Condition 1B: Amount of increase in outside temperature (Current outside temperature) - (Past outside temperature) > Setpoint (e.g. +5°C) Condition 1C: Rate of change of outside air temperature (Rate of change of outdoor temperature) = {(current outdoor temperature) - (outdoor temperature before the set time)} / set time. (Rate of change of outside air temperature) > Set value (e.g., +5℃ / min)

[0040] In this case, the heat storage amount increase control (step S3) may involve, for example, switching from the heat storage mode (hot heat) shown in FIG. 3 to the heat storage increase mode (hot heat) shown in FIG. 5, and increasing the rotation speeds of the fan 6, the compressor 11 of the refrigerant circuit 10, and the pumps P (P1, P2, P3).

[0041] In addition, when the input data is the outside air temperature and cold energy is stored using the circuit configuration of the heat storage management system 1 shown in Figure 6, if a change in the outside air temperature is detected in step S1, one of the following conditions (conditions 2A to 2C) is determined in step S2, and if the condition is satisfied, it is determined that there is an advantage (step S2: YES).

[0042] Condition 2A: Low outside temperature (Current outside temperature) < Setting value (e.g., 15°C) Condition 2B: Amount of decrease in outside air temperature (Current outside temperature) - (Previous outside temperature) < Set value (e.g. -5°C) Condition 2C: Rate of change of outside air temperature (Rate of change of outside air temperature) < specified value (e.g., -5℃ / min)

[0043] In this case, the heat storage amount increase control (step S3) involves switching to the heat storage mode (cold heat) of FIG. 6(a) and increasing the rotation speeds of the fan 6, the compressor 11 of the refrigerant circuit 10, and the pump P (P11, P12).

[0044] As input data, the advantageous judgment in step S2 can also be made based on the amount of heat generated by the heat generating unit 4 that increases due to an operating load, etc. When the input data is the amount of heat generated and heat is stored using the circuit configuration of the heat storage management system 1 shown in Fig. 1, if a change in the amount of heat generated is detected in step S1, then in step S2, it is judged whether any of the following conditions (conditions 3A to 3C) is met, and if the condition is satisfied, it is judged that there is an advantageous effect (step S2: YES).

[0045] Condition 3A: High heat generation (Current heat output)>Set value Condition 3B: Increase in heat generation (Current heat generation amount) - (Past heat generation amount) > Setting value Condition 3C: Rate of change of heat generation (Heat generation rate change) = {(current heat generation) - (heat generation before the set time)} / set time. (Rate of change in heat generation)>Set value

[0046] In this case, the heat storage amount increase control (step S3) is, for example, in the heat storage mode (heat) shown in FIG. 3, by increasing the rotation speed of the pump P (P1) and effectively recovering the exhaust heat from the heat generating section 4 to the heat storage section 3, thereby increasing the amount of heat storage.

[0047] The advantage determination in step S2 can also be made based on the moving speed of the moving body (for example, vehicle speed) as input data. When the input data is the moving speed and heat is stored in the circuit configuration of the heat storage management system 1 shown in Fig. 1, if a change in the moving speed is detected in step S1, then in step S2, it is determined whether any of the following conditions (conditions 4A to 4C) is met, and if the condition is satisfied, it is determined that there is an advantage (step S2: YES).

[0048] Condition 4A: High movement speed (Current travel speed)>Set value (e.g., 40km / h) Condition 4B: Increase in movement speed (Current movement speed) - (Past movement speed) > Setting value Condition 4C: Rate of change of movement speed (Movement speed change rate) = {(current movement speed) - (movement speed before the set time)} / set time, (Movement speed change rate)>Set value (e.g., 20km / h / min)

[0049] In this case, the heat storage amount increase control (step S3) is, for example, as the wind speed of the outside air exchanging heat with the heat exchange section T4 (radiator) becomes relatively faster and the amount of heat absorbed by the outside air can be increased, the mode is switched to the heat storage increase mode of FIG. 5, and the rotation speeds of the fan 6, the compressor 11 of the refrigerant circuit 10, and the pump P (P1, P2, P3) are increased to increase the amount of heat stored in the heat storage section 3.

[0050] Furthermore, when the input data is a moving speed and cold energy is stored using the circuit configuration of the heat storage management system 1 shown in FIG. 6, if a change in the moving speed is detected in step S1, the above-mentioned conditions 4A to 4C are judged in step S2, and if the conditions are satisfied, it is judged that there is an advantage (step S2: YES).

[0051] In this case, the heat storage amount increase control (step S3) is, for example, as the wind speed of the outside air exchanging heat with the heat exchange section T11 (radiator) becomes relatively faster and the amount of heat dissipated from the outside air can be increased, the mode is switched to the heat storage mode (cold heat) in Figure 6 (a) and the rotation speeds of the fan 6, the compressor 11 of the refrigerant circuit 10, and the pump P (P1, P2, P3) are increased to increase the amount of heat stored in the heat storage section 3.

[0052] The outside air temperature, heat generation amount, moving speed, etc. used in each of the above conditions may be actual measured values, or may be values ​​calculated from actual measured values, such as the average value of the actual measured values ​​for a predetermined period of time (for example, one minute). By using the above-mentioned average value in each condition, short-term changes that cannot be used for heat storage can be smoothed, and more appropriate heat storage amount increase control can be performed.

[0053] In addition, the time difference between the "present" and the "past" in each of the above conditions is a time difference that allows a change in the environmental conditions to be recognized as an amount of change, and can be set to, for example, about 3 to 5 minutes.

[0054] Fig. 8 shows an example of a control flow when the control device 20 controls the heat storage amount increase control in the heat storage management system 1 shown in Fig. 1. The control device 20 executes the control flow shown below, with the above-mentioned steps S1 to S3 as the basic flow.

[0055] First, as described above, a change in the surrounding environment is detected based on the input data (step S1), and when a change in the surrounding environment is detected, it is determined whether or not the detected change in the surrounding environment is advantageous for the heat storage management system 1 based on each of the conditions described above (step S2).

[0056] If the determination in step S2 is valid (step S2: YES), in this example, it is further determined whether there is continuity (step S03). The continuity here is determined by predicting the duration of the advantageous situation described above, and if the predicted duration exceeds a predetermined time, there is continuity (step S03: YES), and if the predicted duration does not exceed the predetermined time, there is no continuity (step S03: NO).

[0057] The continuity in step S03 can be recognized by any one of information on the travel route to the current position, information on the travel route to the destination, environmental information of the current position, environmental information to the destination, information on the past travel history, information on the current position and the surrounding map, or a combination of information selected from these. Note that the environmental information here includes, for example, information on temperature and humidity, solar radiation, weather information (rain, sunny, snow, etc.), sunny, shade, etc.

[0058] If it is determined in step S03 that there is no continuity (step S03: NO), short-term intensive control (step S04) is executed, and the control ends. The short-term intensive control here is a control that intensively stores heat by utilizing a short-term favorable situation even if the situation favorable for heat storage does not last long, and for example, the rotation speed of the fan 6 is increased to increase the amount of heat absorbed from the outside air, the rotation speed of the pump P is increased to increase the flow rate of the heat medium circuit 2, and the rotation speed of the compressor 11 is increased to increase the capacity of the refrigerant circuit.

[0059] Then, if it is determined in step S03 that there is continuity (step S03: YES), for example, if the outside air temperature is not below a predetermined temperature (step S05: NO), or if the outside air temperature is below the predetermined temperature (step S05: YES), it is determined whether defrosting of the heat exchange unit T4 (radiator) is necessary (step S06: NO), and the management temperature range of the heat storage unit 3 is expanded (step S07), and then the above-mentioned heat storage amount increase control (transition from heat storage mode to heat storage increase mode) is executed (step S3).

[0060] Then, when the outside air temperature is equal to or lower than a predetermined temperature (step S05: YES) and defrosting of the heat exchanger T4 is necessary (step S06: YES), a defrosting operation is performed while the vehicle is traveling by utilizing the favorable conditions for heat storage (step S09). In this defrosting operation while the vehicle is traveling, the heat storage in the heat storage unit 3 is utilized, and the flow path for flowing the heat medium that has passed through the heat exchanger T2 to the heat exchanger T4 is switched (the switching valve V3 is opened in three directions in the heat storage utilization mode shown in FIG. 4).

[0061] As described above, the heat storage amount increase control in step S3 increases the heat storage amount by appropriately combining the switching of the heat medium circuit 2 (transition from the heat storage mode to the heat storage increase mode) and the increase in the rotation speed of the fan 6, the pump P, and the compressor 11 as described in the short-term intensive control (step S04). Note that, although an example of a control flow when performing the heat storage amount increase control for hot heat is described in the flow of Fig. 8 above, the present invention is not limited to this, and it is possible to similarly determine the presence or absence of continuity in step S03 and selectively use the short-term intensive control and the heat storage amount increase control even in the heat storage amount increase control for cold heat.

[0062] 9, the control device 20 provided in the thermal storage management system 1 is configured as one ECU connected to various ECUs (Electronic Control Units) that control an electric vehicle (EV) via an in-vehicle network L. The control device 20 includes a CPU (Central Processing Unit) 201, a ROM (Read Only Memory) 202, a RAM (Random Access Memory) 203, an input / output I / F (Interface) 204, an in-vehicle communication I / F (Interface) 205, and the like, and each piece of hardware is connected to each other via a bus 206.

[0063] The CPU 201 executes various programs stored in the ROM 202 to control the control device 20. The ROM 202 is a non-volatile memory. For example, the ROM 202 stores programs executed by the CPU 201, data necessary for the CPU 201 to execute the programs, and the like. The RAM 203 is a main storage device such as a dynamic random access memory (DRAM) or a static random access memory (SRAM). For example, the RAM 203 functions as a work area used when the CPU 201 executes the programs. The input / output I / F 204 is connected to various sensors and monitors installed in the EV, and inputs data to the CPU 201 and outputs data processed by the CPU 201. The in-vehicle communication I / F 205 is connected to an in-vehicle network L to control data transmission and reception with other ECUs set in the EV.

[0064] The control device 20 controls the above-mentioned heat storage management system 1 by a program executed by the CPU 201 when data related to the surrounding environment or data related to the driving conditions of the EV is input via the input / output I / F 204 or the in-vehicle communication I / F 205.

[0065] Although the embodiments of the present invention have been described in detail above with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention includes design changes and the like that do not deviate from the gist of the present invention. In addition, the above-mentioned embodiments can be combined by utilizing each other's technologies as long as there are no particular contradictions or problems in the purpose, configuration, etc. [Explanation of symbols]

[0066] 1: Heat storage management system, 2: heat medium circuit, 21: first heat medium circuit, 22: second heat medium circuit, 23: Third heat medium circuit, 24: Fourth heat medium circuit, 25: Fifth heat medium circuit, 3: Heat storage unit, 4: Heat generation unit, 5: Indoor air conditioner, 6: Fan, 10: refrigerant circuit, 11: compressor, 12: pressure reducing device, 20: control device, 201: CPU, 202: ROM, 203: RAM, 204: Input / Output I / F, 205: In-vehicle communication I / F, 206: Bus, T,T1,T2,T3,T4,T5,T6,T10,T11,T12,T13,T14: Heat exchange section, P, P1, P2, P3, P10, P11: Pump, V, V1, V2, V3, V10, V11: Switching valves, L: In-vehicle network

Claims

1. It is a system mounted on a moving object, a heat medium circuit in which a heat medium circulates; a heat pump type refrigerant circuit in which a refrigerant that exchanges heat with the heat medium circulates; A heat storage section in which heat is stored via the heat medium; A heat generating portion that dissipates heat to the heat medium; A heat storage management system including a control device for controlling a heat storage amount of the heat storage unit, The control device includes: When storing heat in the heat storage unit, a heat storage amount increase control is performed based on environmental information favorable for heat storage; A heat storage management system characterized in that, when it is determined that the environmental information favorable for heat storage will continue for a set period of time, a management temperature range of the heat storage unit is expanded and control for increasing the amount of stored heat is performed.

2. 2. The thermal storage management system according to claim 1, wherein the environmental information is recognized based on a change in an outside air temperature.

3. 2. The heat storage management system according to claim 1, wherein the environmental information is recognized based on a change in the amount of heat generated by the heat generating portion.

4. 2. The thermal storage management system according to claim 1, wherein the environmental information is recognized based on a change in a moving speed of a moving object.

5. The thermal storage management system according to any one of claims 1 to 4, characterized in that the continuity of the environmental information is recognized by any one of information on the travel route to the current location, information on past travel history, information on the current location and a surrounding map, or a combination of information selected from these.

6. The control device includes: During heating operation, it is determined that the environmental information favorable for heat storage continues for a set time, If frost forms on the heat exchanger that exchanges heat with the outside air, 6. The heat storage management system according to claim 1, further comprising a defrosting operation.

7. The control device includes: When it is determined that the detected environmental information favorable to heat storage does not continue for a set time, 7. The heat storage management system according to claim 1, wherein short-term intensive control is performed.

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