An apparatus and method for testing the effects of thermal reflow in automobiles

Abstract

This invention relates to an apparatus and method for testing the effects of automotive thermal recirculation. The apparatus includes multiple heating modules and an enthalpy difference testing module. The multiple heating modules are respectively installed at different thermal recirculation points at the condenser inlet to heat each thermal recirculation point to simulate thermal recirculation conditions. The enthalpy difference testing module is used to acquire a first thermal recirculation state parameter of the refrigeration system under thermal recirculation conditions and a second thermal recirculation state parameter of the refrigeration system under non-thermal recirculation conditions. The first thermal recirculation state parameter and the second thermal recirculation state parameter are compared to obtain the test result. This application embodiment enables the testing of the effects of automotive thermal recirculation in a laboratory setting, improving testing efficiency, saving manpower and resources, and providing experimental basis for automotive air conditioning research and development.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of testing automobile thermal management system, and particularly relates to a device and method for testing automobile thermal backflow influence. BACKGROUND

[0002] In recent years, with the progress of society and the improvement of automobile manufacturing level, automobile users have higher and higher requirements for the comfort of the vehicle body. The common condenser of an automobile is air-cooled, and the condenser, the engine cooling water tank and the intercooler share the same fan. The air coming from the front end of the vehicle is easy to disperse due to the influence of the grille at the front end of the vehicle and the internal space of the pipeline machine, so that the air intake of the cooling module often cannot meet the requirements, forming a negative pressure area. The high-temperature gas (the maximum temperature of which can reach 70-80℃) formed after the air passes through the condenser and the engine cooling water tank is easy to form backflow to the negative pressure area, so that the hot air returns to the front end again, which seriously affects the heat dissipation effect of the condenser and the performance of the engine. Increasing the load, consuming energy, and even the heat cannot be dissipated, resulting in system failure.

[0003] At present, the mainstream way for automobile manufacturers to detect the influence of automobile front-end thermal backflow is whole vehicle experiment, that is, by arranging temperature measuring points, the temperature change of the front end of the condenser is detected during the running of the real vehicle. During the test process, different vehicle models and different environmental conditions need to be tested, which means a large amount of logistics cost and manpower investment, time and effort, and the efficiency is very low. SUMMARY

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a device and method for testing automobile thermal backflow influence.

[0005] In a first aspect, the present application provides a device for testing automobile thermal backflow influence, comprising: a plurality of heating modules and an enthalpy difference test module.

[0006] The plurality of heating modules are respectively arranged at different thermal backflow points at the inlet of the condenser, and are used for heating each of the thermal backflow points to simulate a thermal backflow working condition.

[0007] The enthalpy difference test module is used for obtaining a first thermal backflow state parameter of the refrigeration system under the thermal backflow working condition, obtaining a second thermal backflow state parameter of the refrigeration system under a non-thermal backflow working condition, comparing the first thermal backflow state parameter with the second thermal backflow state parameter, and obtaining a test result.

[0008] Optionally, the device further comprises a power adjuster.

[0009] The power adjuster is electrically connected with the heating module, and the power adjuster is used for adjusting the output power of the heating module.

[0010] Optionally, the device further comprises a plurality of temperature acquisition modules.

[0011] The temperature acquisition modules are arranged between the heating modules and the condenser, and are configured to acquire actual hot reflux point temperatures at the hot reflux point positions.

[0012] Optionally, the device further comprises a PID temperature control box.

[0013] The input ends of the PID temperature control box are electrically connected with the plurality of temperature acquisition modules, respectively, and the output ends of the PID temperature control box are electrically connected with the plurality of heating modules, respectively, so as to acquire the actual hot reflux point temperatures acquired by the temperature acquisition modules, and adjust the output power of the heating modules based on the difference between each of the actual hot reflux point temperatures and a target hot reflux point temperature.

[0014] Optionally, the device further comprises a touch screen and a control module.

[0015] The touch screen is electrically connected with the control module, and is configured to configure the target hot reflux point temperature.

[0016] The control module is configured to control a power adjuster to adjust the output power of the heating modules according to the target hot reflux point temperature.

[0017] In a second aspect, the application provides a method for testing the influence of hot reflux of a vehicle, which is applied to an enthalpy difference test module in the device for testing the influence of hot reflux of a vehicle according to any one of the first aspect, and comprises the following steps:

[0018] In a hot reflux working condition, a first hot reflux state parameter of a refrigeration system is acquired.

[0019] In a non-hot reflux working condition, a second hot reflux state parameter of the refrigeration system is acquired.

[0020] The first hot reflux state parameter and the second hot reflux state parameter are compared to obtain a test result.

[0021] In a third aspect, the application provides a method for testing the influence of hot reflux of a vehicle, which is applied to a control module in the device for testing the influence of hot reflux of a vehicle according to any one of the first aspect, and comprises the following steps:

[0022] When no hot reflux simulation instruction is sent to the heating module, a first control instruction is sent to the enthalpy difference test module, and the first control instruction is configured to instruct the enthalpy difference test module to acquire a first hot reflux state parameter of a refrigeration system.

[0023] sending a heat reflux simulation instruction to the heating module to make the heating module heat each of the heat reflux points to simulate a heat reflux working condition, and sending a second control instruction to the enthalpy difference test module, the second control instruction being used to instruct the enthalpy difference test module to acquire a second heat reflux state parameter of the refrigeration system, and compare the first heat reflux state parameter with the second heat reflux state parameter to obtain a test result.

[0024] Optionally, the method further comprises:

[0025] sending a third control instruction to the PID temperature control box, the third control instruction being used to instruct the PID temperature control box to acquire actual heat reflux point temperatures collected by each of the temperature collection modules, and adjust the output power of the heating module based on a difference between each of the target heat reflux point temperatures and the actual heat reflux point temperatures.

[0026] Optionally, the method further comprises:

[0027] sending a fourth control instruction to the PID temperature control box, the fourth control instruction being used to instruct the PID temperature control box to increase the output power of the heating module by increasing the output power of the power regulator when the difference between the target heat reflux point temperature and the actual heat reflux point temperature is greater than a preset threshold, and decrease the output power of the heating module by decreasing the output power of the power regulator when the difference between the target heat reflux point temperature and the actual heat reflux point temperature is greater than the preset threshold.

[0028] Optionally, the method further comprises:

[0029] acquiring a target heat reflux point temperature received by the touch screen;

[0030] controlling the power regulator to adjust the output power of the heating module according to the target heat reflux point temperature.

[0031] Compared with the prior art, the above technical solution provided by the embodiments of the present application has the following advantages:

[0032] The embodiments of the present application simulate the heat reflux working condition by heating the air in front of the condenser through the heating module, and compare the first heat reflux state parameter in the heat reflux working condition with the second heat reflux state parameter in the non-heat reflux working condition through the enthalpy difference test module to obtain a test result, so that the test of the influence of the heat reflux on the automobile can be completed in the laboratory, the test efficiency is improved, the manpower and resources are saved, and the experimental basis is provided for the development of the automobile air conditioner. BRIEF DESCRIPTION OF DRAWINGS

[0033] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate embodiments that are consistent with the present application and serve to explain the principles of the application, together with the description.

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without creative labor.

[0035] Figure 1 A structural schematic diagram of a device for testing the influence of automobile heat reflux provided by the embodiments of the present application;

[0036] Figure 2 A structural schematic diagram of another device for testing the influence of automobile heat reflux provided by the embodiments of the present application;

[0037] Figure 3 A flowchart of a method for testing the influence of automobile heat reflux provided by the embodiments of the present application;

[0038] Figure 4 A flowchart of another method for testing the influence of automobile heat reflux provided by the embodiments of the present application.

[0039] Among them, 11-heating module, 12-enthalpy difference test module, 13-condenser, 14-compressor, 15-evaporator, 16-power regulator, 17-temperature acquisition module, 18-PID temperature control box, 19-touch screen, 20-control module. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0041] At present, the mainstream way for automobile enterprises to detect the influence of automobile front-end heat reflux is whole vehicle experiment, that is, by arranging temperature measuring points, the temperature change of the front end of the condenser is detected during the running of the real vehicle. During the test process, different vehicle models and different environmental conditions need to be tested, which means a large amount of logistics cost and manpower investment, time-consuming and labor-intensive, and the efficiency is very low. Therefore, the embodiments of the present application provide a device and method for testing the influence of automobile heat reflux.

[0042] As Figure 1As shown, the device for testing the influence of hot air recirculation of the automobile provided by the embodiment of the application comprises a plurality of heating modules 11 and an enthalpy difference test module 12.

[0043] The plurality of heating modules 11 are respectively arranged at different hot air recirculation points at the inlet of the condenser 13, and are used for heating at each of the hot air recirculation points to simulate a hot air recirculation condition.

[0044] The heating module 11 refers to a device such as an electric heating wire that can convert electric energy into heat energy, and each heating module 11 can be independently controlled in temperature. Since different heating modules 11 are arranged at different hot air recirculation points at the inlet of the condenser 13, the air inlet temperature at different positions of the condenser 13 can be controlled by the plurality of heating modules 11 to simulate the hot air recirculation process of high-temperature air at the front end of the automobile, i.e., the hot air recirculation condition. The hot air recirculation point refers to any selected position in the hot air recirculation path through which the hot air recirculates.

[0045] The enthalpy difference test module 12 is used for obtaining a first hot air recirculation state parameter of the refrigeration system under the hot air recirculation condition, obtaining a second hot air recirculation state parameter of the refrigeration system under a non-hot air recirculation condition, comparing the first hot air recirculation state parameter with the second hot air recirculation state parameter, and obtaining a test result.

[0046] The enthalpy difference test module 12 can refer to an enthalpy difference test system or an enthalpy difference test device. The enthalpy difference test module 12 can detect the state parameters of the refrigeration system before and after the hot air recirculation. The refrigeration system includes an air conditioning system and a cooling system. The air conditioning system includes a condenser 13, a compressor 14, an evaporator 15, a fan, and the like. The cooling system includes a radiator, an engine cooling water tank, an intercooler, an oil cooler, and a fan shared with the air conditioning system. Therefore, the first hot air recirculation state parameter includes the state parameters of a plurality of devices in the air conditioning system and the cooling system under the hot air recirculation condition, such as the engine cooling water temperature, the oil cooler temperature of the transmission, and the heat damage of the engine cabin under the hot air recirculation condition. The second hot air recirculation state parameter includes the state parameters of a plurality of devices in the air conditioning system and the cooling system under the non-hot air recirculation condition, such as the engine cooling water temperature, the oil cooler temperature of the transmission, and the heat damage of the engine cabin under the non-hot air recirculation condition.

[0047] Since the first hot air recirculation state parameter and the second hot air recirculation state parameter each include a plurality of state parameters, when the first hot air recirculation state parameter and the second hot air recirculation state parameter are compared, each state parameter can be compared respectively, and the comparison results of the state parameters are combined to obtain the test result.

[0048] This application embodiment simulates a thermal recirculation condition by heating the air in front of the condenser using a heating module. Then, the enthalpy difference test module compares the first thermal recirculation state parameters under the thermal recirculation condition with the second thermal recirculation state parameters under the non-thermal recirculation condition to obtain the test results. This allows for the testing of the impact of automotive thermal recirculation to be completed in the laboratory, improving testing efficiency, saving manpower and resources, and providing experimental basis for automotive air conditioning research and development.

[0049] In yet another embodiment of this application, as Figure 2 As shown, the device also includes: a power regulator 16;

[0050] The power regulator 16 is electrically connected to the heating module 11, and the power regulator 16 is used to adjust the output power of the heating module 11.

[0051] In this embodiment of the application, the output power of the load, i.e. the heating module 11, can be adjusted by the power regulator 16 to heat the air at the heat return point to the target heat return point temperature. For example, a correspondence between different output powers of the heating module 11 and different temperatures can be established in advance. When it is necessary to heat the air at a certain heat return point to the target heat return point temperature, the correspondence can be referenced, and the output power of the corresponding heating module 11 can be adjusted by the power regulator 16 to the output power corresponding to the specified temperature.

[0052] In yet another embodiment of this application, as Figure 1 As shown, the device also includes: multiple temperature acquisition modules 17;

[0053] The temperature acquisition module 17 is located between the heating module 11 and the condenser 13, and is used to acquire the actual temperature of each heat reflux point.

[0054] The temperature acquisition module 17 can be, for example, a thermocouple probe, a temperature sensor, etc.

[0055] In this embodiment, the temperature acquisition module 17 is placed between the heating module 11 and the condenser 13, so that the high-temperature air being heated by the heating module 11 and about to enter the condenser 13 flows through the temperature acquisition module 17. The temperature acquisition module 17 can acquire the temperature of the high-temperature air, which is the actual temperature of the heat return point.

[0056] After collecting the actual temperature of the heat reflux point, it can be used to determine whether the heating module 11 has heated the air at the heat reflux point to the target heat reflux point temperature, thereby achieving precise temperature control and ensuring that the air inlet temperature of different heat reflux points at the inlet of the condenser 13 is accurately controllable.

[0057] After reaching the target hot reflow point temperature, the power adjuster 16 can keep the current output power of the heating module 11 unchanged; when the target hot reflow point temperature is not reached, the power adjuster 16 can increase the output power of the heating module 11, which can be set according to actual needs, and details are not described here.

[0058] In another embodiment of the present application, as shown in Figure 1 The device further comprises a PID temperature control box 18.

[0059] The input end of the PID temperature control box 18 is electrically connected with the plurality of temperature collection modules 17 respectively, and the output end of the PID temperature control box 18 is electrically connected with the plurality of heating modules 11 respectively, for obtaining the actual hot reflow point temperature collected by each temperature collection module 17, and adjusting the output power of the heating module 11 based on the difference between each actual hot reflow point temperature and the target hot reflow point temperature.

[0060] For example, as shown in Figure 2 The power adjuster in the foregoing embodiments can be arranged in the PID temperature control box.

[0061] In the embodiments of the present application, the PID temperature control box 18 can perform closed-loop control on the output power of the heating module 11 based on the PID control algorithm and the actual hot reflow temperature collected by the temperature collection module 17, so as to realize further precise temperature control and ensure that the air inlet temperature of the condenser 13 at different hot reflow points is precisely controllable.

[0062] In another embodiment of the present application, as shown in Figure 2 The device further comprises a touch screen 19 and a control module 20.

[0063] The touch screen 19 is electrically connected with the control module 20, for configuring the target hot reflow point temperature.

[0064] For example, as shown in Figure 2 The touch screen 19 and the control module 20 can be arranged in the PID temperature control box. In actual application, the test personnel can input information such as the target hot reflow point temperature through the touch screen 19.

[0065] The control module 20 is configured to control the power adjuster 16 to adjust the output power of the heating module 11 according to the target hot reflow point temperature.

[0066] In the embodiments of the present application, the control module 20 can obtain the target hot reflow point temperature, and drive the power adjuster 16 to adjust the output power of the heating module 11 according to the target hot reflow point temperature.

[0067] In another embodiment of the present application, as shown in Figure 3Also shown, there is provided a method for testing the influence of automotive heat reflux, applied to the enthalpy difference test module in the device for testing the influence of automotive heat reflux as described in any of the preceding embodiments, comprising:

[0068] Step S101, under the heat reflux working condition, obtaining a first heat reflux state parameter of the refrigeration system;

[0069] Step S102, under the non-heat reflux working condition, obtaining a second heat reflux state parameter of the refrigeration system;

[0070] Step S103, comparing the first heat reflux state parameter with the second heat reflux state parameter to obtain a test result.

[0071] In the embodiments of the present application, the enthalpy difference test module can compare the first heat reflux state parameter under the heat reflux working condition with the second heat reflux state parameter under the non-heat reflux working condition to obtain a test result, so that the test of the influence of automotive heat reflux can be completed in the laboratory, the test efficiency is improved, the manpower and resources are saved, and experimental basis is provided for the development of automotive air conditioners.

[0072] In another embodiment of the present application, there is also provided a method for testing the influence of automotive heat reflux, applied to the control module in the device for testing the influence of automotive heat reflux as described in any of the preceding embodiments, comprising:

[0073] When no heat reflux simulation instruction is sent to the heating module, a first control instruction is sent to the enthalpy difference test module, the first control instruction being used to instruct the enthalpy difference test module to obtain a first heat reflux state parameter of the refrigeration system;

[0074] A heat reflux simulation instruction is sent to the heating module to make the heating module heat each of the heat reflux points to simulate a heat reflux working condition, and a second control instruction is sent to the enthalpy difference test module, the second control instruction being used to instruct the enthalpy difference test module to obtain a second heat reflux state parameter of the refrigeration system, and compare the first heat reflux state parameter with the second heat reflux state parameter to obtain a test result.

[0075] In the embodiments of the present application, the control module instructs the heating module to heat the air before the condenser to simulate the heat reflux working condition through the heat reflux simulation instruction, instructs the enthalpy difference test module to obtain the first heat reflux state parameter under the non-heat reflux working condition through the first control instruction, instructs the enthalpy difference test module to obtain the second heat reflux state parameter under the heat reflux working condition through the second control instruction, and instructs the enthalpy difference test module to compare the first heat reflux state parameter under the heat reflux working condition with the second heat reflux state parameter under the non-heat reflux working condition to obtain a test result, so that the test of the influence of automotive heat reflux can be completed in the laboratory, the test efficiency is improved, the manpower and resources are saved, and experimental basis is provided for the development of automotive air conditioners.

[0076] In another embodiment of the present application, the method further comprises:

[0077] sending a third control instruction to the PID temperature control box, the third control instruction being used to instruct the PID temperature control box to acquire actual hot reflow point temperature collected by each temperature collection module, and adjust output power of the heating module based on a difference between each target hot reflow point temperature and the actual hot reflow point temperature.

[0078] In the embodiment of the present application, the control module can instruct the PID temperature control box to adjust output power of the heating module 11 in a closed loop based on a PID control algorithm and actual hot reflow temperature collected by the temperature collection module through the third control instruction, so as to achieve further precise temperature control and ensure that air inlet temperature of different hot reflow points of the condenser inlet is precisely controllable.

[0079] In another embodiment of the present application, the method further comprises:

[0080] sending a fourth control instruction to the PID temperature control box, the fourth control instruction being used to instruct the PID temperature control box to increase output power of the power adjuster and increase output power of the heating module when a difference between the target hot reflow point temperature and the actual hot reflow point temperature is greater than a preset threshold, and to decrease output power of the power adjuster and decrease output power of the heating module when the difference between the target hot reflow point temperature and the actual hot reflow point temperature is greater than the preset threshold.

[0081] In the embodiment of the present application, the control module can instruct the PID temperature control box to increase output power of the power adjuster and increase output power of the heating module when a difference between the target hot reflow point temperature and the actual hot reflow point temperature is greater than a preset threshold, and to decrease output power of the power adjuster and decrease output power of the heating module when the difference between the target hot reflow point temperature and the actual hot reflow point temperature is greater than the preset threshold through the fourth control instruction, which can be the same instruction as the third control instruction or not, so as to achieve further precise temperature control and ensure that air inlet temperature of different hot reflow points of the condenser inlet is precisely controllable.

[0082] In another embodiment of the present application, the method further comprises:

[0083] acquiring target hot reflow point temperature received by the touch screen;

[0084] controlling the power adjuster to adjust output power of the heating module according to the target hot reflow point temperature.

[0085] In the embodiments of the present application, the control module can obtain the target heat reflow point temperature from the touch screen, and drive the power regulator to adjust the output power of the heating module according to the target heat reflow point temperature.

[0086] For ease of understanding, an actual application embodiment is further provided in the embodiments of the present application, as shown in the following table. Figure 4 As shown in the table, after starting the test, each component in the device for testing the influence of the heat reflow of the automobile described above can be connected with the air conditioning system of the actual vehicle. The heating module and the thermocouple are arranged at the heat reflow point at the front end of the condenser according to the requirement. The tester inputs the heat reflow point temperature T1 (i.e., the target heat reflow point temperature) to be controlled on the touch screen, starts the test system of the actual vehicle (i.e., the device for testing the influence of the heat reflow of the automobile described above), records the system state parameters before the heat reflow (i.e., the second heat reflow state parameters in the non-heat reflow working condition), starts the heat reflow tooling (i.e., the heating module), monitors the actual temperature T2 (i.e., the actual heat reflow point temperature) of the heat reflow point through the thermocouple, compares T1 and T2 in the PID control box, increases the output power of the power regulator to increase the output power of the heating module if T1-T2>0.5, reduces the output power of the power regulator to reduce the output power of the heating module if T1-T2<0.5, and stops until T1-T2=0, i.e., the two are equal. The system state parameters after the heat reflow is started (i.e., the first heat reflow state parameters) are recorded, and it is determined whether there are other heat reflow state points (i.e., heat reflow points) to be tested. If yes, the step of arranging the heating module and the thermocouple at the heat reflow point at the front end of the condenser according to the requirement is re-executed. If no, the test is ended.

[0087] It should be noted that, in the present document, relational terms such as“first” and“second”, and the like, are used solely to distinguish one entity or action from another entity or action, without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms“comprises”,“comprising”, or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by“comprises a...” does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0088] The foregoing is considered as illustrative only of the principles of the application. Numerous modifications and changes will readily occur to those skilled in the art, and it is intended to embrace all such modifications and changes that fall within the scope of the application. Accordingly, the application is not to be restricted in scope to the specific embodiments disclosed herein but is to be accorded the full scope that the principles and novel features request appropriately granted.

Claims

1. An apparatus for testing the effect of hot flowback on an automobile, characterized by, The device comprises: a plurality of heating modules and an enthalpy difference test module; the plurality of heating modules are respectively arranged at different hot return points at the inlet of the condenser, and are used for heating each hot return point to simulate a hot return condition; the enthalpy difference test module is used for obtaining a first hot return state parameter of the refrigeration system under the hot return condition, obtaining a second hot return state parameter of the refrigeration system under a non-hot return condition, comparing the first hot return state parameter with the second hot return state parameter, and obtaining a test result; the device further comprises a plurality of temperature acquisition modules; the temperature acquisition modules are arranged between the heating modules and the condenser, and are used for acquiring actual hot return point temperatures at each hot return point.

2. The apparatus for testing the thermal reflow effect of an automobile according to claim 1, wherein, the device further comprises a power regulator; the power regulator is electrically connected with the heating modules, and is used for adjusting the output power of the heating modules.

3. The apparatus for testing the thermal reflow effect of an automobile according to claim 1, wherein, the device further comprises a PID temperature control box; an input end of the PID temperature control box is electrically connected with the plurality of temperature acquisition modules, and an output end of the PID temperature control box is electrically connected with the plurality of heating modules, which is used for acquiring the actual hot return point temperatures acquired by the temperature acquisition modules, adjusting the output power of the heating modules based on the difference between each actual hot return point temperature and a target hot return point temperature.

4. The apparatus for testing the thermal reflow effect of an automobile according to claim 1, wherein the device further comprises a touch screen and a control module; the touch screen is electrically connected with the control module, and is used for configuring the target hot return point temperature; the control module is used for controlling the power regulator to adjust the output power of the heating modules according to the target hot return point temperature.

5. A method of testing the effect of hot flowback on an automobile, characterized by, The enthalpy difference test module applied to the device for testing the influence of hot return of a vehicle according to any one of claims 1 to 4 comprises: obtaining a first hot return state parameter of the refrigeration system under a hot return condition; obtaining a second hot return state parameter of the refrigeration system under a non-hot return condition; comparing the first hot return state parameter with the second hot return state parameter to obtain a test result.

6. A method of testing the effect of hot flowback on an automobile, characterized by, The control module applied to the device for testing the influence of hot return of a vehicle according to claim 4, the method comprises: when no hot return simulation instruction is sent to the heating module, a first control instruction is sent to the enthalpy difference test module, the first control instruction is used for instructing the enthalpy difference test module to obtain a first hot return state parameter of the refrigeration system; a hot return simulation instruction is sent to the heating module to make the heating module heat each hot return point to simulate a hot return condition, a second control instruction is sent to the enthalpy difference test module, the second control instruction is used for instructing the enthalpy difference test module to obtain a second hot return state parameter of the refrigeration system, and comparing the first hot return state parameter with the second hot return state parameter to obtain a test result.

7. The method of testing for the effects of automotive heat soak according to claim 6, wherein, the method further comprises: The third control instruction is used to instruct the PID temperature control box to acquire the actual hot reflow point temperature collected by each temperature collection module, and to adjust the output power of the heating module based on the difference between each target hot reflow point temperature and the actual hot reflow point temperature.

8. The method of testing for the effects of automotive heat soak according to claim 7, wherein, The method further comprises: The fourth control instruction is used to instruct the PID temperature control box to increase the output power of the heating module by increasing the output power of the power adjuster when the difference between the target hot reflow point temperature and the actual hot reflow point temperature is greater than a preset threshold, and to decrease the output power of the heating module by decreasing the output power of the power adjuster when the difference between the target hot reflow point temperature and the actual hot reflow point temperature is greater than the preset threshold.

9. The method of testing for the effects of automotive heat soak according to claim 6, wherein, The method further comprises: Acquiring the target hot reflow point temperature received by the touch screen; According to the target hot reflow point temperature, the power adjuster adjusts the output power of the heating module.

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