Test system, test method, and test program for heat management system

Abstract

The present invention makes it possible to improve tracking with respect to changes in an amount of heat at a heat management system and comprises a simulated heat source body 2 for thermally simulating a heat source component, a heat supply device 3 that supplies heat to the simulated heat source body 2, a heat amount acquisition unit 41 that acquires the amount of heat produced by a heat source component of a heat-generating device, and a heat simulation control unit 42 that controls the heat supply device 3 to thermally simulate the heat source component using the simulated heat source body 2. The heat simulation control unit 42 controls the heat supply device 3 on the basis of the amount of heat acquired by the heat amount acquisition unit 41 and an outlet temperature T5 or an outlet flow rate FR5 for a test object temperature adjustment apparatus 210 of a heat management system 200.

Description

Test system, test method, and test program for thermal management system

[0001] The present invention relates to a test system, a test method, and a test program for a thermal management system.

[0002] In recent years, in the case of electrically powered vehicles such as hybrid (including plug-in hybrid) vehicles, electric vehicles, or fuel cell vehicles, attention has been focused on the development of thermal management systems that manage heat generated from heat-generating components such as engines, batteries, motors, or inverters, from the perspectives of improving cruising range, improving passenger comfort, and extending battery life (see, for example, Patent Document 1).

[0003] Special Publication No. 2012-514556

[0004] In order to promote the development of thermal management systems, a test system has been considered that thermally simulates a heat source component such as an engine, a battery, a motor, or an inverter. This test system may include, for example, a simulated heat source such as a heat exchanger for thermally simulating the heat source component, and a heat supply device for supplying heat to the simulated heat source. The test system may acquire temperature and / or flow rate from the simulated heat source such as a heat exchanger connected to a thermal management system under test, and control the heat supply device of the thermal simulation system.

[0005] However, the configuration in which the temperature and / or flow rate is acquired from a simulated heat source such as a heat exchanger to control the heat supply device of the thermal simulation system has a problem of limited time response, especially when a sudden change (gradient) in the amount of heat input from the thermal management system to the simulated heat source occurs (for example, when the cooling fan of a radiator suddenly starts operating), and the ability to follow the change in the amount of heat is problematic.

[0006] The present invention has been made in view of the above problems, and its main object is to improve the ability of a thermal management system to follow changes in heat quantity.

[0007] In other words, the test system of the present invention is a test system for testing a thermal management system that manages heat generated from one or more heat source components of a heat generating device, and is characterized by comprising a simulated heat source body for thermally simulating the heat source component, a heat supply device that supplies heat to the simulated heat source body, a heat quantity acquisition unit that acquires the amount of heat generated from the heat source component of the heat generating device, a heat simulation control unit that controls the heat supply device to thermally simulate the heat source component using the simulated heat source body, and the heat simulation control unit controls the heat supply device based on the heat quantity acquired by the heat quantity acquisition unit and the outlet temperature or outlet flow rate of a temperature control device in the thermal management system.

[0008] In this type of test system, the heat supply device is controlled based on the outlet temperature or outlet flow rate of the temperature control device in the thermal management system under test, so that the heat supply device can be controlled by predicting changes in the amount of heat input from the thermal management system to the simulated heat source of the test object, thereby improving the thermal management system's ability to follow changes in the amount of heat.

[0009] In a specific embodiment, the simulated heat source body may be a heat exchanger that exchanges the amount of heat generated by the heat supply device to thermally simulate the heat source component with the amount of heat generated by the heat management system to regulate the temperature of the heat source component.

[0010] In this configuration, in order to improve the ability to follow changes in the heat quantity of the temperature control equipment in the heat management system, it is desirable that the heat simulation control unit controls the heat supply equipment based on the heat quantity acquired by the heat quantity acquisition unit and the outlet temperature or outlet flow rate of the temperature control equipment in the heat management system, as well as the inlet temperature or inlet flow rate on the heat supply equipment side of the heat exchanger, the inlet temperature or inlet flow rate on the heat management system side of the heat exchanger, or the outlet temperature or outlet flow rate on the heat supply equipment side of the heat exchanger.

[0011] As a specific control mode of the heat simulation control unit, it is desirable that the heat simulation control unit feedback controls the heat supply device based on the heat quantity acquired by the heat quantity acquisition unit, the inlet temperature or inlet flow rate on the heat supply device side of the heat exchanger, the inlet temperature or inlet flow rate on the heat management system side of the heat exchanger, or the outlet temperature or outlet flow rate on the heat supply device side of the heat exchanger, and feedforward controls the heat supply device based on the outlet temperature or outlet flow rate of a temperature control device in the heat management system.

[0012] As a specific example of feedback control in the heat simulation control unit, the heat simulation control unit may feedback control the heat supply device based on the heat quantity acquired by the heat quantity acquisition unit, the inlet temperature or inlet flow rate on the heat supply device side of the heat exchanger, and the exchanged heat quantity calculated from the inlet temperature or inlet flow rate on the heat management system side of the heat exchanger.

[0013] A specific example of feedforward control in the thermal simulation control unit is that the thermal simulation control unit feedforward controls the heat supply device based on the outlet temperature or outlet flow rate of the temperature control equipment in the thermal management system and the inlet temperature or inlet flow rate on the heat supply device side of the heat exchanger.

[0014] A specific example of feedback control in the heat simulation control unit is that the heat simulation control unit feedback controls the heat supply device based on the heat quantity acquired by the heat quantity acquisition unit, the inlet temperature or inlet flow rate on the heat supply device side of the heat exchanger, the inlet temperature or inlet flow rate on the heat management system side of the heat exchanger, or the outlet temperature or outlet flow rate on the heat supply device side of the heat exchanger, and changes the gain in the feedback control based on the outlet temperature or outlet flow rate of the temperature control equipment in the heat management system.

[0015] In a specific embodiment of the heat supply device, the heat supply device may generate heat to thermally simulate the heat source component by circulating a temperature-controlled fluid through the simulated heat source. In this configuration, it is desirable that the thermal simulation control unit controls the heat supply device to adjust the temperature and / or flow rate of the fluid supplied to the simulated heat source. By adjusting the temperature and / or flow rate of the fluid to generate heat to thermally simulate the heat source component, the thermal management system's ability to respond to changes in heat quantity can be improved.

[0016] As a specific embodiment of the temperature control device of the thermal management system, the temperature control device may be an HVAC (Heating, Ventilation, and Air Conditioning), an intercooler, a compressor, a radiator, a heater, or a chiller.

[0017] The testing system according to the present invention further includes a simulated vehicle body having the simulated heat source installed therein and simulating the vehicle body, a simulated vehicle compartment provided within the simulated vehicle body and simulating the vehicle compartment, a simulated vehicle body air conditioning unit that supplies temperature-controlled air to the simulated vehicle body, and a simulated vehicle compartment air conditioning unit that supplies temperature-controlled air to the simulated vehicle compartment, and it is desirable that the simulated vehicle compartment air conditioning unit has an intake flow path that takes in temperature-controlled air from the simulated vehicle body air conditioning unit. With this configuration, the driving environment, such as the temperature or humidity of the air outside the vehicle during actual driving, can be simulated within the simulated vehicle body. Furthermore, the driving environment, such as the temperature or humidity of the air inside the vehicle compartment during actual driving, can be simulated within the simulated vehicle compartment. This allows for a more realistic reproduction of the environment in which the thermal management system is placed during actual driving. Since the simulated vehicle compartment air conditioner has an intake flow path that takes in temperature-controlled air from the simulated vehicle body air conditioner, the air conditioning function of the simulated vehicle compartment air conditioner can be assigned to the simulated vehicle body air conditioner, which allows the simulated vehicle compartment air conditioner to be simplified and made smaller.

[0018] In addition, the testing method of the present invention is a testing method for testing a thermal management system that manages heat generated from one or more heat source components of a heat generating device, and uses a simulated heat source body for thermally simulating the heat source components and a heat supply device that supplies heat to the simulated heat source body, and is characterized in that the amount of heat generated from the heat source components of the heat generating device is acquired, and the heat supply device is controlled based on the acquired heat amount and the outlet temperature or outlet flow rate of a temperature control device in the thermal management system, and the heat source components are thermally simulated by the simulated heat source body.

[0019] Furthermore, the test program of the present invention is a test program for testing a thermal management system that manages heat generated from one or more heat source components of a heat generating device, and is used together with a simulated heat source body for thermally simulating the heat source component and a heat supply device that supplies heat to the simulated heat source body, and is characterized in that the test program has a function as a heat quantity acquisition unit that acquires the amount of heat generated from the heat source component of the heat generating device, and a function as a thermal simulation control unit that controls the heat supply device based on the acquired heat quantity and the outlet temperature or outlet flow rate of a temperature control device in the heat management system and thermally simulates the heat source component using the simulated heat source body.

[0020] According to the present invention configured in this manner, it is possible to improve the ability of the thermal management system to follow changes in the amount of heat.

[0021] FIG. 1 is a schematic diagram of a test system according to one embodiment of the present invention; FIG. 2 is a functional configuration diagram of a control device according to the same embodiment; FIG. 3 is a graph showing an example of calorific value data according to the same embodiment; FIG. 4 is a schematic diagram showing measurement points of temperature and flow rate of a fluid according to the same embodiment; FIG. 5 is a control block diagram of a test system according to a modified embodiment; FIG. 6 is a control block diagram of a test system according to a modified embodiment; FIG. 7 is a control block diagram of a test system according to a modified embodiment; FIG. 8 is a schematic diagram of a test system according to a modified embodiment;

[0022] A test system for a thermal management system according to an embodiment of the present invention will be described below with reference to the drawings. Note that, for ease of understanding, all of the drawings shown below are drawn in a schematic manner, with appropriate omissions or exaggerations. Identical components are designated by the same reference numerals, and their descriptions will be omitted where appropriate.

[0023] <Configuration of Test System 100> The test system 100 of this embodiment tests a thermal management system 200 that manages heat generated from one or more heat source components of a heat generating device. Examples of heat generating devices include vehicles, railcars, aircraft, ships, battery packs, power storage devices, and computers. In the following, the embodiment will be described assuming that the heat generating device is a vehicle. In this test system 100, the test system 100 simulates heat generated from heat source components of a vehicle (e.g., an engine, a motor, a battery, a fuel cell, or an air conditioner) while the vehicle is starting, stopping, or running, and the operating status of the thermal management system 200 at that time can be acquired and evaluated.

[0024] Here, examples of vehicles include hybrid vehicles (including plug-in hybrid vehicles), engine vehicles, electric vehicles, fuel cell vehicles, and other electrically powered vehicles. Furthermore, examples of heat source components include engines, motors, converters, inverters, electric axles (combining multiple components such as a motor and an inverter), air conditioners, and batteries (including fuel cells). If the heat source component is a motor, the heat generated during regenerative play may be included in addition to heat generated during normal operation (forward rotation). Furthermore, heat source components may be not only heat sources that generate heat, but also cold sources that absorb heat. Examples of cold sources include radiators or chillers, which will be described later.

[0025] The thermal management system 200 also includes a test temperature control device 210 for adjusting heat generated from heat source components of the vehicle, and a temperature control device (not shown) for controlling the operation of the test temperature control device 210. Examples of the test temperature control device 210 include an HVAC (Heating, Ventilation, and Air Conditioning), an intercooler, a compressor, a radiator, a heater, and / or a chiller. The test temperature control device 210 is disposed within a simulated vehicle body 5 to thermally simulate an actual vehicle. In particular, the HVAC is disposed within a simulated vehicle compartment 51 provided within the simulated vehicle body 5. The simulated vehicle body 5 and the simulated vehicle compartment 51 may each be configured as a temperature-controllable constant-temperature bath. A simulated heat source 2, described below, is also disposed within the simulated vehicle body 5.

[0026] Specifically, as shown in FIG. 1, the test system 100 includes the above-mentioned simulated vehicle body 5, a simulated heat source body 2 for thermally simulating heat source components, a heat supply device 3 for supplying heat to the simulated heat source body 2, and a control device 4 for controlling the heat supply device 3.

[0027] One or more simulated heat sources 2 are provided so as to simulate the heat generation from each of a plurality of heat source components. In this embodiment, the simulated heat sources 2 include a simulated motor 2a that thermally simulates a motor, a simulated converter 2b that thermally simulates a converter, and a simulated battery 2c that thermally simulates a battery. The simulated heat source 2 may be any one of the above, or may be one that thermally simulates another heat source component (e.g., an engine).

[0028] The simulated heat source 2 is, for example, a heat exchanger or heat dissipation device, and is configured to radiate or absorb heat supplied from the heat supply device 3 by utilizing thermal conduction. Here, the simulated heat source 2 is configured to generate or absorb heat by supplying a heat medium at a predetermined temperature and flow rate from the heat supply device 3. The simulated heat source 2 of this embodiment is a heat exchanger that exchanges the amount of heat generated by the heat supply device 3 to thermally simulate the heat source component with the amount of heat generated by the heat management system 200 to regulate the temperature of the heat source component.

[0029] The heat supply device 3 receives a control signal from the control device 4 and supplies a predetermined amount of heat to the simulated heat source body 2, thereby thermally simulating the heat source components of a vehicle (e.g., engine, motor, battery, fuel cell, or air conditioner) while the vehicle is starting, stopped, charging, or running.

[0030] Specifically, the heat supply device 3 generates heat to thermally simulate a heat source component by circulating a heat medium, which is a temperature-controlled fluid, through the simulated heat source body 2. The heat medium of the heat supply device 3 may be a liquid such as hot water or a gas such as air. The heat supply device 3 of this embodiment includes a heat source device 31 that transfers heat between the heat medium and the heat source device 31, a temperature adjustment device 32 that generates a heat medium at a desired temperature (for example, −20° C. to 110° C.) by heat exchange using the heat medium sent from the heat source device 31, and a heat medium circulation line L that circulates the heat medium.

[0031] The heat source device 31 has a hot heat source device 31a such as a boiler and a cold heat source device 31b such as a refrigerator. The hot heat source device 31a and / or the cold heat source device 31b are common to a plurality of simulated heat sources 2. Alternatively, the heat source device 31 may have a plurality of hot heat source devices 31a and / or a plurality of cold heat source devices 31b. Furthermore, the heat source device 31 may have only one of the hot heat source device 31a or the cold heat source device 31b.

[0032] The temperature control device 32 generates a heat medium at a desired temperature (for example, −20° C. to 110° C.) by heat exchange using a heat medium such as hot water supplied from the hot heat source device 31 a and a heat medium such as cold water supplied from the cold heat source device 31 b. This temperature control device 32 is provided corresponding to each of the multiple simulated heat sources 2.

[0033] Here, each of the heat source devices 31 a, 31 b and each of the temperature control devices 32 are connected by a pipe 33 of the heat medium circulation line L, and each of the temperature control devices 32 and the corresponding simulated heat source body 2 are connected by a pipe 34 of the heat medium circulation line L. In addition, the pipes 33, 34 of the heat medium circulation line L are provided with a flow control unit (not shown) such as a control valve and / or a pump for controlling the flow rate or pressure.

[0034] The control device 4 controls the heat supply device 3 to reproduce, for example, heat generated from the heat source components when the vehicle is traveling on an actual road, using each simulated heat source body 2. The control device 4 is a dedicated or general-purpose computer equipped with a CPU, internal memory, an input / output interface, an A / D converter, etc. Based on a predetermined program stored in the internal memory, the control device 4 causes each simulated heat source body 2 to reproduce the heat generated from the heat source components by cooperation of the CPU and peripheral devices.

[0035] Specifically, as shown in Figure 2, the control device 4 has a heat quantity acquisition unit 41 that acquires the heat quantity generated from heat source components of the vehicle (e.g., engine, motor, battery, fuel cell, or air conditioner) while the vehicle is running, stopped, charging, or running, and a thermal simulation control unit 42 that controls the heat supply device 3 and thermally simulates the heat source components using the simulated heat source body 2.

[0036] The heat quantity acquiring unit 41 acquires heat quantity data indicating the amount of heat generated from the heat source components. The heat quantity acquiring unit 41 acquires the heat quantity data for each of the heat source components. In addition to the heat quantity data, the heat quantity acquiring unit 41 also acquires data related to the flow rate and / or temperature of the heat medium in the thermal management system 200 under test.

[0037] Here, the heat quantity data is set based on the user's heat quantity requirements. The heat quantity data is time-series data on the heat quantity generated from the heat source components during actual road driving, as shown in FIG. 3, for example. This heat quantity data includes behavior data that indicates the transient behavior of the heat quantity generated from the heat source components. Examples of the transient behavior of the heat quantity include the heat quantity gradient or the maximum heat quantity. The heat quantity data also includes temperature data. Examples of the temperature data include the outlet temperature of the heat exchanger, which is the simulated heat source body 2.

[0038] The heat simulation control unit 42 controls the heat supply device 3 based on the heat quantity acquired by the heat quantity acquisition unit 41. The heat simulation control unit 42 of this embodiment controls the heat supply device 3 based on the temperature and / or flow rate of the heat medium at one or more measurement points (see FIG. 4 ) of the thermal management system 200 and the test system 100, in addition to the heat quantity acquired by the heat quantity acquisition unit 41.

[0039] The measurement points in Figure 4 are as follows: While Figure 4 illustrates a radiator as the temperature control device under test 210 of the thermal management system 200, the other temperature control devices under test 210 described above may also be used. In addition, the following describes one simulated heat source 2 (for example, the heat exchanger 2 serving as a simulated battery 2c) out of the multiple simulated heat sources (heat exchangers) 2, but the other heat exchangers 2 serving as simulated heat sources 2a and 2b can also be controlled in the same way.

[0040] Measurement point 1 is a measurement point located on the heat exchanger 2 side in the flow path from the temperature adjustment device 32 toward the heat exchanger 2. For example, measurement point 1 is the heat medium inlet on the heat supply device 3 side of the heat exchanger 2. T1 is the temperature (inlet temperature) measured by a temperature sensor provided at measurement point 1, and FR1 is the flow rate (inlet flow rate) measured by a flow sensor provided at measurement point 1. The heat medium inlet on the heat supply device 3 side of the heat exchanger 2 is, for example, the heat medium inlet port of the heat exchanger 2 or a portion near the port of a pipe connected to the heat medium inlet port.

[0041] Measurement point 2 is a measurement point located on the heat exchanger 2 side in the flow path from the heat exchanger 2 toward the temperature adjustment device 32. For example, measurement point 2 is the heat medium outlet on the heat supply device 3 side of the heat exchanger 2. T2 is the temperature (outlet temperature) measured by a temperature sensor provided at measurement point 2. The heat medium outlet on the heat supply device 3 side of the heat exchanger 2 is, for example, the heat medium outlet port of the heat exchanger 2 or a portion near the port of a pipe connected to the heat medium outlet port.

[0042] Measurement point 3 is a measurement point located on the heat exchanger 2 side in the flow path from the temperature adjustment device under test 210 toward the heat exchanger 2. For example, measurement point 3 is the heat medium inlet on the heat management system 200 side of the heat exchanger 2. T3 is the temperature (inlet temperature) measured by the temperature sensor provided at measurement point 3, and FR3 is the flow rate (inlet flow rate) measured by the flow sensor provided at measurement point 3. The heat medium inlet on the heat management system 200 side of the heat exchanger 2 is, for example, the heat medium inlet port of the heat exchanger 2 or a portion near the port of the piping connected to the heat medium inlet port.

[0043] Measurement point 4 is a measurement point located on the heat exchanger 2 side in the flow path from heat exchanger 2 to the temperature control device under test 210. For example, measurement point 4 is the heat medium outlet on the thermal management system side of heat exchanger 2, and T4 is the temperature measured (outlet temperature) by a temperature sensor provided at measurement point 4. The heat medium outlet on the thermal management system side of heat exchanger 2 is, for example, the heat medium outlet port of heat exchanger 2 or a portion near the port of a pipe connected to the heat medium outlet port.

[0044] Measurement point 5 is a measurement point located on the temperature control device under test 210 side in the flow path from the temperature control device under test 210 toward the heat exchanger 2. For example, measurement point 5 is the heat medium outlet of the temperature control device under test 210 in the thermal management system 200 under test. T5 is the temperature (outlet temperature) measured by a temperature sensor provided at measurement point 5, and FR5 is the flow rate (outlet flow rate) measured by a flow sensor provided at measurement point 5. The heat medium outlet of the temperature control device under test 210 is, for example, the heat medium outlet port of the temperature control device under test 210 or a portion near the port of a pipe connected to the heat medium outlet port.

[0045] Specifically, the heat simulation control unit 42 calculates the heat quantity Q acquired by the heat quantity acquisition unit 41. ｓｅｔIn addition to the outlet temperature T5 or outlet flow rate FR5 of the test body temperature adjustment device 210 in the thermal management system 200, the heat supply device 3 is controlled based on the inlet temperature T1 or inlet flow rate FR1 on the heat supply device 3 side of the heat exchanger 2, and the inlet temperature T3 or inlet flow rate FR3 on the heat management system 200 side of the heat exchanger 2. Note that the thermal simulation control unit 42 can also use the outlet temperature T2 or outlet flow rate FR2 instead of the inlet temperature T3 or inlet flow rate FR3, but using the inlet temperature T3 or inlet flow rate FR3 before the heat exchange can improve the control responsiveness of the heat quantity rather than using the outlet temperature T2 or outlet flow rate FR2 after the heat exchange.

[0046] More specifically, the heat simulation control unit 42 determines the target heat quantity Q ｓｅｔ The heat simulation control unit 42 has a feedback controller 42a that feedback controls the heat supply unit 3 based on the inlet temperature T1 or inlet flow rate FR1 on the heat supply unit 3 side and the inlet temperature T3 or inlet flow rate FR3 on the thermal management system 200 side. The heat simulation control unit 42 also has a feedforward controller 42b that feedforward controls the heat supply unit 3 based on the outlet temperature T5 or outlet flow rate FR5 of the temperature adjustment device 210 under test.

[0047] The feedback controller 42a calculates the target heat quantity Q ｓｅｔ and a first exchange heat quantity Q1 calculated from the inlet temperature T1 or inlet flow rate FR1 on the heat supply device 3 side and the inlet temperature T3 or inlet flow rate FR3 on the heat management system 200 side, to generate a feedback control signal for feedback controlling the heat supply device 3. Here, the first exchange heat quantity Q1 is calculated by the first heat quantity calculator 42c. Furthermore, the first exchange heat quantity Q1 can be calculated using the inlet temperature T1 and / or inlet flow rate FR1 on the heat supply device 3 side and the inlet temperature T3 and / or inlet flow rate FR3 on the heat management system 200 side, as shown in the following equation 1. Note that the function of the first heat quantity calculator 42c may be provided in the feedback controller 42a.

[0048] [Formula 1: First exchange heat quantity Q1] Q1 = K1 × FR1 × (T3 - T1), or Q1 = K1 × FR3 × (T3 - T1), where K1 is a constant (unit: J / (K m ３ )).

[0049] The feedforward controller 42b generates a feedforward control signal for feedforward control of the heat supply device 3 based on a second heat exchange amount Q2 calculated from the outlet temperature T5 or outlet flow rate FR5 of the temperature control device under test 210 and the inlet temperature T1 or inlet flow rate FR1 of the heat supply device 3. Here, the second heat exchange amount Q2 is calculated by a second heat amount calculator 42d. Furthermore, the second heat exchange amount Q2 can be calculated using the outlet temperature T5 and / or outlet flow rate FR5 of the temperature control device under test 210 and the inlet temperature T1 and / or inlet flow rate FR1 of the heat supply device 3, as shown in the following equation 2. The function of the second heat amount calculator 42d may be provided in the feedforward controller 42b.

[0050] [Formula 2: Second exchange heat quantity Q2] Q2 = K1 × FR1 × (T5 - T1), or Q2 = K1 × FR5 × (T5 - T1), where K1 is a constant (unit: J / (K m ３ )).

[0051] Furthermore, when generating the feedforward control signal, the feedforward controller 42b uses as parameters the piping distance from the heat medium outlet (measurement point 5) of the test temperature control device 210 to the heat medium inlet (measurement point 3) on the heat management system 200 side of the heat exchanger 2, and / or the arrival time of the heat medium.

[0052] Then, the thermal simulation control unit 42 adds the feedback control signal generated by the feedback controller 42a and the feedforward control signal generated by the feedforward controller 42b using an adder 42e, and controls the heat supply device 3 according to the added control signal.

[0053] Here, the manipulated variable input to the heat supply device 3 is the temperature and / or flow rate of the fluid (heat medium). When the temperature of the fluid is used as the manipulated variable, for example, it is conceivable to control a flow rate control unit provided in the pipe 33 of the heat medium circulation line L to adjust the heating temperature of the fluid by the temperature adjustment device 32. When the flow rate of the fluid is used as the manipulated variable, it is conceivable to control a flow rate control unit provided in the pipe 34 of the heat medium circulation line L to adjust the flow rate of the fluid supplied to the heat exchanger 2.

[0054] In this way, the thermal simulation control unit 42 controls the heat supply device 3 to adjust the temperature and / or flow rate of the fluid (heat medium) supplied to the heat exchanger 2, and controls the amount of heat to thermally simulate the heat source component.

[0055] <Effects of this embodiment> According to the test system 100 of this embodiment configured as described above, the heat supply device 3 is controlled based on the outlet temperature T5 or outlet flow rate FR5 of the temperature adjustment device under test 210 in the thermal management system 200, so it is possible to predict changes in the amount of heat input from the thermal management system 200 to the simulated heat source 2 and control the heat supply device 3. As a result, it is possible to improve the ability of the thermal management system 200 to follow changes in the amount of heat.

[0056] Other Embodiments The present invention is not limited to the above-described embodiments.

[0057] For example, in feedback control, the thermal simulation control unit 42 may use the outlet temperature T2 or outlet flow rate FR2 on the heat supply device 3 side of the heat exchanger 2 instead of the inlet temperature T3 or inlet flow rate FR3 on the heat management system 200 side of the heat exchanger 2, as shown in Figure 6.

[0058] The heat simulation control unit 42 also calculates the heat quantity Q acquired by the heat quantity acquisition unit 41. ｓｅｔ The heat supply device 3 may be controlled based on the outlet temperature T5 or outlet flow rate FR5 of the test body temperature control device 210 in the heat management system 200, and the inlet temperature T3 or inlet flow rate FR3 on the heat management system 200 side of the heat exchanger 2.

[0059] Furthermore, the heat simulation control unit 42 calculates at least the heat quantity Q acquired by the heat quantity acquisition unit 41. ｓｅｔ , and the outlet temperature T5 or outlet flow rate FR5 of the temperature adjustment device 210 under test in the thermal management system 200, the temperatures and / or flow rates at other measurement points do not need to be used. Specifically, as shown in Figure 7, the feedforward controller 42b generates a feedforward control signal for feedforward controlling the heat adjustment device 3 based on the outlet temperature T5 and / or outlet flow rate FR5 of the temperature adjustment device 210 under test. For example, the feedforward controller 42b may generate a feedforward control signal based on the amount of change (gradient) in the outlet temperature T5 and / or outlet flow rate FR5 of the temperature adjustment device 210 under test.

[0060] Furthermore, when a predetermined fixed value or an estimated value is used for the temperature or flow rate at each measurement point, it is not necessary to measure the temperature or flow rate at each measurement point.

[0061] Furthermore, as shown in FIG. 8 , the thermal simulation control unit 42 may be configured without the feedforward control unit 42b. In this case, the thermal simulation control unit 42 may change the gain of the feedback control based on the outlet temperature T5 and / or outlet flow rate FR5 of the temperature control device under test 210. Here, the thermal simulation control unit 42 may include an amplifier 42f that multiplies the feedback control signal generated by the feedback controller 42a by a gain (coefficient) corresponding to the outlet temperature T5 and / or outlet flow rate FR5. Alternatively, the thermal simulation control unit 42 may input the outlet temperature T5 and / or outlet flow rate FR5 to the feedback controller 42a, and change the control gain (e.g., PID coefficient) of the feedback controller 42a according to the outlet temperature T5 and / or outlet flow rate FR5.

[0062] Furthermore, as shown in FIG. 9, the test system 100 of the present invention may include a simulated vehicle compartment air conditioner 6 that supplies temperature-controlled air to the simulated vehicle body 5, and a simulated vehicle body air conditioner 7 that supplies temperature-controlled air to the simulated vehicle body 5.

[0063] The simulated vehicle body air conditioning device 6 adjusts the air inside the simulated vehicle body 5 to a predetermined temperature, thereby simulating the vehicle environment while the vehicle is starting, stopping, charging, or running, using the space inside the simulated vehicle body 5. Specifically, the simulated vehicle body air conditioning device 6 is configured to circulate air between the simulated vehicle body 5 and the simulated vehicle body 5, and includes a simulated vehicle body air conditioner 61 that adjusts the air to a desired temperature, an air supply duct 62 that sends air from the simulated vehicle body air conditioner 61 to the simulated vehicle body 5, and a return air duct 63 that returns air from the simulated vehicle body 5 to the simulated vehicle body air conditioner 61. The simulated vehicle body air conditioner 61 may be, for example, a fan coil unit or an air handling unit, and may be configured to adjust the air to a desired temperature using a heat medium supplied from the heat supply device 3. The simulated vehicle body air conditioner 61 may also include a humidifier and / or a dehumidifier to adjust the air to a desired humidity. The air conditioner 61 for the simulated vehicle body may be disposed outside the simulated vehicle body 5 .

[0064] The simulated vehicle compartment air-conditioning device 7 adjusts the air in the simulated vehicle compartment 51 to a predetermined temperature (preferably to a predetermined temperature and humidity), thereby simulating the vehicle compartment environment of a vehicle while the vehicle is running, parked, charging, or traveling using the simulated vehicle compartment 3. Specifically, the simulated vehicle compartment air-conditioning device 7 is configured to circulate air between the simulated vehicle compartment 51 and the simulated vehicle compartment 51, and includes a simulated vehicle compartment air-conditioner 71 that adjusts the air to a desired temperature, a supply air duct 72 that sends air from the simulated vehicle compartment air-conditioner 71 to the simulated vehicle compartment 51, and a return air duct 73 that returns air from the simulated vehicle compartment 51 to the simulated vehicle compartment air-conditioner 71. The simulated vehicle compartment air-conditioner 71 is, for example, a heater, and can be turned on and off by the control device 4. The simulated vehicle compartment air-conditioner 71 may also include a humidifier and / or dehumidifier to adjust the air to a desired humidity. The simulated vehicle interior air conditioner 71 may be disposed outside the simulated vehicle body 5 .

[0065] The simulated vehicle compartment air conditioner 7 includes an intake flow path 74 that takes in temperature-controlled air from the simulated vehicle body air conditioner 6, and a return flow path 75 that returns air from inside the simulated vehicle compartment 51 to the simulated vehicle body air conditioner 6. The return flow path 75 may not be provided.

[0066] The intake flow path 74 is connected to the air supply duct 62 of the simulated vehicle body air conditioner 6 and the air supply duct 72 of the simulated vehicle compartment air conditioner 7. This intake flow path 74 may be provided with a pump for taking in air or a flow rate adjuster for adjusting the flow rate.

[0067] The return flow path 75 is connected to the return air duct 63 of the simulated vehicle body air conditioner 6 and the return air duct 73 of the simulated vehicle compartment air conditioner 7. This return flow path 75 returns the air of the flow rate (flow rate f) taken into the supply air duct 72 from the intake flow path 74 from the return air duct 73 of the simulated vehicle compartment air conditioner 7 to the ventilation duct 63 of the simulated vehicle body air conditioner 6. Note that this intake flow path 74 may be provided with a pump for returning the air or a flow rate adjustment unit for adjusting the flow rate.

[0068] The control device 4 can control the simulated vehicle compartment air conditioner 71 and the flow rate of the intake flow path 74 to maintain the simulated vehicle compartment 51 at a desired temperature. For example, the control device 4 can adjust the target temperature of the simulated vehicle compartment air conditioner 71 while maintaining a constant flow rate of the intake flow path 74, thereby controlling the simulated vehicle compartment 51 to a desired temperature. The control device 4 can also link the control of the simulated vehicle compartment air conditioner 71 with the control of the flow rate of the intake flow path 74. In this case, the control device 4 can control the on / off of the simulated vehicle compartment air conditioner 71, and when the simulated vehicle compartment air conditioner 71 is turned off, it is considered that the control device 4 takes in temperature-controlled air from the intake flow path 74 into the supply air duct 72.

[0069] 9 , the driving environment, such as the temperature or humidity of the air outside the vehicle during actual driving, can be simulated inside the simulated vehicle body 5. Furthermore, the driving environment, such as the temperature or humidity of the air inside the vehicle cabin during actual driving, can be simulated inside the simulated vehicle compartment 51. This allows for a more realistic reproduction of the environment in which the thermal management system 200 is placed during actual driving. Here, since the simulated vehicle compartment air-conditioning device 7 is provided with an intake flow path 74 that takes in temperature-controlled air from the simulated vehicle body air-conditioning device 6, the air-conditioning function of the simulated vehicle compartment air-conditioning device 7 can be assigned to the simulated vehicle body air-conditioning device 6. As a result, the simulated vehicle compartment air-conditioning device 7 can be simplified or made smaller.

[0070] The test system 100 in the above embodiment is for testing the thermal management system 200 mounted on an electric vehicle, but is not limited to this. In other embodiments, the test system 100 may be for testing the thermal management system 200 mounted on a pure engine vehicle.

[0071] Although the heat generating device in the above embodiment is a vehicle, the heat generating device may be other devices such as a battery pack or a power storage device. When the heat generating device is a battery pack or a power storage device, the heat source component is a battery cell or a battery pack, and a thermal management system for managing the heat generated therefrom is provided in the battery case. Furthermore, when a railroad vehicle, an aircraft, or a ship is used as the heat generating device, it can be tested in the same manner as when the vehicle in the above embodiment is used as the heat generating device.

[0072] Furthermore, the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications are possible without departing from the spirit of the present invention.

[0073] According to the present invention, it is possible to improve the ability of the thermal management system to follow changes in the amount of heat.

[0074] REFERENCE SIGNS LIST 100 Test system 200 Thermal management system 2 Simulated heat source 3 Heat supply device 4 Control device 41 Heat quantity acquisition unit 42 Thermal simulation control unit

Claims

1. A test system for testing a thermal management system that manages heat generated from one or more heat source components of a heat generating device, comprising: a simulated heat source body for thermally simulating the heat source components; a heat supply device that supplies heat to the simulated heat source body; a heat quantity acquisition unit that acquires the amount of heat generated from the heat source components of the heat generating device; a heat simulation control unit that controls the heat supply device to thermally simulate the heat source components using the simulated heat source body; and the heat simulation control unit controls the heat supply device based on the heat quantity acquired by the heat quantity acquisition unit and the outlet temperature or outlet flow rate of a temperature control device in the thermal management system.

2. The test system of claim 1, wherein the simulated heat source is a heat exchanger that exchanges the amount of heat generated by the heat supply device to thermally simulate the heat source component with the amount of heat generated by the thermal management system to regulate the temperature of the heat source component.

3. The test system described in claim 2, wherein the heat simulation control unit controls the heat supply device based on the heat quantity acquired by the heat quantity acquisition unit and the outlet temperature or outlet flow rate of the temperature control equipment in the thermal management system, as well as the inlet temperature or inlet flow rate on the heat supply device side of the heat exchanger, and the inlet temperature or inlet flow rate on the heat management system side of the heat exchanger, or the outlet temperature or outlet flow rate on the heat supply device side of the heat exchanger.

4. The test system described in claim 3, wherein the heat simulation control unit feedback controls the heat supply device based on the heat quantity acquired by the heat quantity acquisition unit, the inlet temperature or inlet flow rate on the heat supply device side of the heat exchanger, the inlet temperature or inlet flow rate on the heat management system side of the heat exchanger, or the outlet temperature or outlet flow rate on the heat supply device side of the heat exchanger, and feedforward controls the heat supply device based on the outlet temperature or outlet flow rate of a temperature control device in the heat management system.

5. The test system described in claim 4, wherein the heat simulation control unit feedback controls the heat supply device based on the heat quantity acquired by the heat quantity acquisition unit, the inlet temperature or inlet flow rate on the heat supply device side of the heat exchanger, and the exchanged heat quantity calculated from the inlet temperature or inlet flow rate on the heat management system side of the heat exchanger.

6. A test system as described in claim 4 or 5, wherein the thermal simulation control unit feedforward controls the heat supply device based on the outlet temperature or outlet flow rate of the temperature control equipment in the thermal management system and the inlet temperature or inlet flow rate on the heat supply device side of the heat exchanger.

7. The test system described in claim 3, wherein the heat simulation control unit feedback controls the heat supply device based on the heat quantity acquired by the heat quantity acquisition unit, the inlet temperature or inlet flow rate on the heat supply device side of the heat exchanger, the inlet temperature or inlet flow rate on the heat management system side of the heat exchanger, or the outlet temperature or outlet flow rate on the heat supply device side of the heat exchanger, and changes the gain in the feedback control based on the outlet temperature or outlet flow rate of a temperature control device in the heat management system.

8. A test system as described in any one of claims 1 to 7, wherein the heat supply device generates heat to thermally simulate the heat source component by circulating a temperature-controlled fluid through the simulated heat source, and the thermal simulation control unit adjusts the temperature and / or flow rate of the fluid supplied to the simulated heat source by controlling the heat supply device.

9. The test system according to any one of claims 1 to 8, wherein the temperature control device is an HVAC (Heating, Ventilation, and Air Conditioning), an intercooler, a compressor, a radiator, a heater, or a chiller.

10. A test system as described in any one of claims 1 to 9, further comprising: a simulated vehicle body in which the simulated heat source is installed and which simulates the body of a vehicle; a simulated vehicle compartment provided within the simulated vehicle body and which simulates the passenger compartment of the vehicle; an air conditioning device for the simulated vehicle body which supplies temperature-controlled air to the simulated vehicle body; and an air conditioning device for the simulated vehicle compartment which supplies temperature-controlled air to the simulated vehicle compartment, wherein the air conditioning device for the simulated vehicle compartment has an intake flow path which takes in temperature-controlled air from the air conditioning device for the simulated vehicle body.

11. A test method for testing a thermal management system that manages heat generated from one or more heat source components of a heat generating device, using a simulated heat source body for thermally simulating the heat source components and a heat supply device that supplies heat to the simulated heat source body, the test method comprising: acquiring the amount of heat generated from the heat source components of the heat generating device; controlling the heat supply device based on the acquired heat amount and the outlet temperature or outlet flow rate of a temperature control device in the thermal management system; and thermally simulating the heat source components using the simulated heat source body.

12. A test program for testing a thermal management system that manages heat generated from one or more heat source components of a heat generating device, which is used together with a simulated heat source body for thermally simulating the heat source components and a heat supply device that supplies heat to the simulated heat source body, and which equips a computer with the functions of a heat quantity acquisition unit that acquires the amount of heat generated from the heat source components of the heat generating device, and a thermal simulation control unit that controls the heat supply device based on the acquired heat quantity and the outlet temperature or outlet flow rate of a temperature control device in the heat management system, and thermally simulates the heat source components using the simulated heat source body.

Images