Radiator test method, cooling system control method, equipment and vehicle

Abstract

The invention is suitable for the technical field of automobiles, and provides a radiator testing method, a cooling system control method, equipment and a vehicle. Wherein the radiator is configured in a vehicle, the radiator is provided with a single cooling liquid inlet and a plurality of cooling liquid outlets, the radiator comprises a plurality of cooling areas in one-to-one correspondence with the plurality of cooling liquid outlets, and the test method of the radiator comprises the following steps: obtaining test conditions of the radiator; heat dissipation performance parameters of each cooling area under the test condition are obtained, and when each cooling area is tested, other cooling areas in the multiple cooling areas are blocked. According to the embodiment of the invention, the heat dissipation performance of each cooling area can be independently measured.

Description

Technical Field

[0001] The present application belongs to the field of automobile technology, and in particular relates to a radiator testing method, a cooling system control method, a device and a vehicle. Background Art

[0002] As the degree of vehicle electrification continues to increase, the requirements for vehicle cooling systems are becoming increasingly stringent. Traditional radiators can no longer meet the needs of complex thermal management systems. For some radiators with complex architectures, their actual heat dissipation efficiency has become an urgent problem to be solved. Summary of the invention

[0003] The embodiments of the present application provide a radiator testing method, a cooling system control method, a device and a vehicle, which can independently measure the heat dissipation performance of each cooling zone.

[0004] A first aspect of an embodiment of the present application provides a method for testing a radiator, wherein the radiator is configured in a cooling system, the radiator is provided with a single coolant inlet and multiple coolant outlets, the radiator includes multiple cooling zones corresponding one-to-one to the multiple coolant outlets, and the method for testing the radiator includes: obtaining test conditions of the radiator; obtaining heat dissipation performance parameters of each of the cooling zones under the test conditions, wherein when each cooling zone is tested, other cooling zones among the multiple cooling zones are blocked.

[0005] In some embodiments of the first aspect, the multiple coolant outlets include a first outlet and a second outlet, and the multiple cooling zones include a first cooling zone and a second cooling zone; obtaining the heat dissipation performance parameters of each of the cooling zones under the test conditions includes: when testing the first cooling zone, closing the second outlet and blocking the second cooling zone, so that the coolant flows into the radiator from the coolant inlet, passes through the first cooling zone and flows out from the first outlet, and obtaining the heat dissipation performance parameters of the first cooling zone under the test conditions; when testing the second cooling zone, closing the coolant inlet and blocking the first cooling zone, so that the coolant flows into the radiator from the first outlet, passes through the second cooling zone and flows out from the second outlet, and obtaining the heat dissipation performance parameters of the second cooling zone under the test conditions.

[0006] In some embodiments of the first aspect, the test condition includes a temperature difference between the coolant and the air passing through the radiator and / or a type of coolant.

[0007] A second aspect of an embodiment of the present application provides a method for controlling a cooling system, wherein the cooling system includes a radiator, wherein the radiator includes a first cooling zone and a second cooling zone, and the coolant flowing into the radiator flows out through the first cooling zone, or flows out through the first cooling zone and the second cooling zone in sequence; the cooling system is also provided with a main water pump and an enhanced water pump; the method for controlling the cooling system includes: obtaining a low-temperature circuit water temperature of the cooling system, wherein the low-temperature circuit water temperature is the temperature of the coolant after heat dissipation through the radiator; when the low-temperature circuit water temperature is less than or equal to a first temperature threshold, controlling the main water pump to operate; when the low-temperature circuit water temperature is greater than the first temperature threshold, controlling the main water pump and the enhanced water pump to operate simultaneously, wherein the enhanced water pump is used to increase the amount of coolant flowing through the second cooling zone.

[0008] In some embodiments of the second aspect, in the process of controlling the main water pump and the enhanced water pump to operate simultaneously, it also includes: when the water temperature of the low-temperature circuit is greater than the second temperature threshold, controlling the enhanced water pump to operate according to the first water pump duty cycle; when the water temperature of the low-temperature circuit is less than or equal to the second temperature threshold, controlling the enhanced water pump to operate according to the second water pump duty cycle, and the first water pump duty cycle is greater than the second water pump duty cycle.

[0009] In some embodiments of the second aspect, the control method of the cooling system also includes: when the low-temperature circuit water temperature is less than or equal to a first temperature threshold, controlling the fan to cool the coolant passing through the radiator according to a first fan duty cycle; when the low-temperature circuit water temperature is greater than the first temperature threshold and less than or equal to a second temperature threshold, controlling the fan to cool the coolant passing through the radiator according to a second fan duty cycle; when the low-temperature circuit water temperature is greater than the second temperature threshold, controlling the fan to cool the coolant passing through the radiator according to a third fan duty cycle, wherein the second fan duty cycle is less than the third fan duty cycle and greater than the first fan duty cycle.

[0010] A third aspect of an embodiment of the present application provides a radiator testing device, wherein the radiator is configured in a cooling system, the radiator is provided with a single coolant inlet and multiple coolant outlets, the radiator includes multiple cooling zones corresponding one to one to the multiple coolant outlets, and the radiator testing device includes: a test condition acquisition unit, used to obtain the test conditions of the radiator; a testing unit, used to obtain the heat dissipation performance parameters of each of the cooling zones under the test conditions, wherein when each cooling zone is tested, other cooling zones among the multiple cooling zones are blocked.

[0011] A fourth aspect of an embodiment of the present application provides a control device for a cooling system, wherein the cooling system includes a radiator, the radiator includes a first cooling zone and a second cooling zone, the coolant flowing into the radiator flows out through the first cooling zone, or flows out through the first cooling zone and the second cooling zone in sequence; the cooling system is also provided with a main water pump and an enhanced water pump; the control device of the cooling system includes: an acquisition unit, for acquiring the low-temperature circuit water temperature of the cooling system, the low-temperature circuit water temperature being the temperature of the coolant after heat dissipation through the radiator; a first control unit, for controlling the main water pump to operate when the low-temperature circuit water temperature is less than or equal to a first temperature threshold; a second control unit, for controlling the main water pump and the enhanced water pump to operate simultaneously when the low-temperature circuit water temperature is greater than the first temperature threshold, the enhanced water pump being used to increase the amount of coolant flowing through the second cooling zone.

[0012] A fifth aspect of an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the steps of the test method of the radiator are implemented, or when the computer program is executed by a processor, the steps of the control method of the cooling system are implemented.

[0013] A sixth aspect of an embodiment of the present application provides a testing device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, steps of a radiator testing method are implemented.

[0014] A seventh aspect of an embodiment of the present application provides a vehicle, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the cooling system of the vehicle comprises a radiator, the radiator comprising a first cooling zone and a second cooling zone, the coolant flowing into the radiator flows out through the first cooling zone, or flows out through the first cooling zone and the second cooling zone in sequence; the cooling system is also provided with a main water pump and an enhanced water pump; and the processor implements the steps of the above-mentioned cooling system control method when executing the computer program.

[0015] In some embodiments of the seventh aspect, the cooling system further comprises a fan for supplying air to the first cooling zone and the second cooling zone.

[0016] An eighth aspect of an embodiment of the present application provides a computer program product, which, when the computer program product is run on a test device, enables the test device to execute the above-mentioned radiator test method; or, when the computer program product is run on a vehicle, enables the vehicle to execute the above-mentioned cooling system control method.

[0017] In an embodiment of the present application, a radiator is designed with multiple coolant outlets and multiple cooling zones corresponding to the multiple coolant outlets. During testing, the heat dissipation performance parameters of each cooling zone under test conditions are obtained, and when each cooling zone is tested, other cooling zones in the multiple cooling zones are blocked. The radiator with a multi-outlet structure can be tested independently in different areas, ensuring that the heat dissipation performance of each cooling zone under different working conditions can be accurately evaluated, thereby improving the effectiveness of the test.

[0018] In addition, for the above-mentioned radiator with multiple coolant outlets and multiple cooling zones, the present application provides a method of utilizing the main water pump and the enhanced water pump to work in coordination. When the low-temperature circuit water temperature is less than or equal to the first temperature threshold, the main water pump is controlled to operate. When the low-temperature circuit water temperature is greater than the first temperature threshold, the main water pump and the enhanced water pump are controlled to operate simultaneously to increase the amount of coolant flowing through the second cooling zone, thereby improving the heat dissipation capacity when the heat dissipation demand is high and ensuring the normal operation of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the implementation flow of a radiator testing method provided in an embodiment of the present application;

[0021] Figure 2 is a schematic diagram of the structure of a radiator provided in an embodiment of the present application;

[0022] Figure 3 is a schematic diagram of the structure of a cooling system provided in an embodiment of the present application;

[0023] Figure 4 is a schematic diagram of testing the first cooling zone provided in an embodiment of the present application;

[0024] Figure 5 is a schematic diagram of testing the second cooling zone provided in an embodiment of the present application;

[0025] Figure 6 It is a schematic diagram of an implementation flow of a control method for a cooling system provided in an embodiment of the present application;

[0026] Figure 7 is a structural schematic diagram of a radiator testing device provided in an embodiment of the present application;

[0027] Figure 8 is a schematic diagram of the structure of a control device for a cooling system provided in an embodiment of the present application;

[0028] Fig. 9 is a schematic diagram of the structure of the test device provided in the embodiment of the present application;

[0029] Fig.10 It is a schematic diagram of the structure of a vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are protected by the present application.

[0031] As the degree of vehicle electrification continues to increase, the requirements for vehicle cooling systems are becoming increasingly stringent. Traditional radiators can no longer meet the needs of complex thermal management systems. For some radiators with complex architectures, their actual heat dissipation efficiency has become an urgent problem to be solved.

[0032] In view of this, the present application proposes a solution for testing a complex structure radiator with multiple coolant outlets, which can ensure that the heat dissipation performance of each cooling area under different working conditions can be accurately evaluated, thereby improving the effectiveness of the test. At the same time, the design of multiple water pumps to coordinate with such complex structure radiators can improve the heat dissipation capacity when the heat dissipation demand is high, thus ensuring the normal operation of the vehicle.

[0033] In order to illustrate the technical solution of the present application, a specific embodiment is provided below for illustration.

[0034] Figure 1 The present invention provides a schematic diagram of the implementation process of a radiator testing method provided in an embodiment of the present invention, which can be applied to a testing device. The above-mentioned testing device can be a computer, a production line device, or a device specifically used for vehicle testing or vehicle component testing, which is not limited by the present invention.

[0035] The radiator can be arranged in a cooling system to dissipate the heat of the coolant in the cooling system. The cooling system can be arranged in a vehicle. The coolant can be used to participate in the circulation of the cooling system to control the operating temperature of the heater core, the engine, the battery pack assembly, and the intercooler in the vehicle.

[0036] Specifically, the radiator may be provided with a single coolant inlet and multiple coolant outlets, and the radiator includes multiple cooling zones corresponding to the multiple coolant outlets. The coolant needs to flow through the cooling zones corresponding to the coolant outlets and then flow out through the coolant outlets.

[0037] In some embodiments of the present application, the cooling system may further include a fan disposed on one side of the radiator for supplying air to the above-mentioned multiple cooling zones to accelerate the flow of gas around the radiator to achieve a better heat dissipation effect.

[0038] In some embodiments of this application, please refer to Figure 2 , the plurality of coolant outlets may include a first outlet Outlet1 and a second outlet Outlet2, and the plurality of cooling zones may include a first cooling zone (zone 1 RAD1) and a second cooling zone (zone 1 RAD1). When the cooling system is operating normally, the coolant flowing into the radiator through the coolant inlet Inlet flows out from the first outlet Outlet1 through the first cooling zone RAD1, or flows out from the second outlet Outlet2 through the first cooling zone RAD1 and the second cooling zone RAD2 in sequence.

[0039] Correspondingly, the above-mentioned fan can be used to supply air to the first cooling area RAD1 and the second cooling area RAD2.

[0040] Specifically, the coolant flows in a U-shaped form in the radiator, so that the coolant is more evenly distributed inside the radiator, thereby improving the overall heat dissipation effect. The coolant flowing out from the second outlet Outlet2 is cooled twice by the first cooling zone RAD1 and the second cooling zone RAD2 at the same time, which can achieve a better cooling effect.

[0041] In some embodiments of the present application, the cooling system is further provided with a main water pump and an enhanced water pump. The main water pump is responsible for the main circulation of the entire cooling system and is used to pump the coolant to the radiator. The enhanced water pump is used to increase the coolant flow rate in a local area, and specifically, can be used to increase the amount of coolant flowing through the second cooling zone.

[0042] For details, please refer to Figure 3 , the main water pump can be connected to the coolant inlet Inlet and the first end of the reversing valve respectively. The intercooler can be connected to the first outlet Outlet1 and the second end of the reversing valve respectively. The second outlet Outlet2 is connected to the enhanced water pump and the first end of the electric drive and the electronic control unit in turn, and the second end of the electric drive and the electronic control unit is connected to the third end of the reversing valve. Among them, the intercooler is used as an auxiliary heat dissipation device to reduce the coolant temperature. The electric drive and the electronic control unit are used to realize the cooling system control.

[0043] In addition, a temperature sensor may be provided between the enhanced water pump and the electric drive and electronic control unit to monitor the water temperature of the low-temperature circuit.

[0044] Specifically, the above-mentioned heat sink testing method may include the following steps S101 to S102.

[0045] Step S101, obtaining test conditions of the radiator.

[0046] The test conditions refer to the operating conditions of the radiator during the test, and can be set according to working conditions that are convenient for obtaining the heat dissipation efficiency.

[0047] In some embodiments of the present application, the test conditions may include a temperature difference between the coolant and the air passing through the radiator and / or a type of coolant.

[0048] The temperature difference between the coolant and the air needs to be maintained at a preset threshold so that the coolant and the air can exchange heat in order to monitor the heat dissipation performance. For example, the temperature difference between the coolant and the air can be set to △T = 40°C, wherein the ambient air temperature (Ta1) entering the radiator can be set to 20°C, and the initial temperature (Tw1) of the coolant entering the radiator can be set to 60°C.

[0049] The type of coolant determines the heat exchange capacity of the coolant. Exemplarily, the coolant type may be LLC (long life coolant) 50% coolant, which is a mixed coolant in a specific ratio, usually composed of water and antifreeze to provide good thermal conductivity and antifreeze protection. The coolant type may also be ethylene glycol coolant or other common types, which are not limited in this application.

[0050] Step S102, obtaining heat dissipation performance parameters of each cooling zone under test conditions, wherein when each cooling zone is tested, other cooling zones among the plurality of cooling zones are blocked.

[0051] The heat dissipation performance parameters are used to characterize the heat dissipation efficiency of the cooling zone, and may include but are not limited to: heat exchange efficiency, pressure loss, etc.

[0052] That is to say, when testing a certain cooling zone, the remaining cooling zones among the multiple cooling zones need to be blocked to measure the heat dissipation performance parameters of the cooling zone under the test conditions.

[0053] In the embodiments of the present application, when the cooling area is blocked, the coolant will not flow through the blocked cooling area, and / or the blocked cooling area will be blocked from the air and thus cannot exchange heat. In this way, interference of other areas on the test results of the test area can be avoided.

[0054] It should be noted that in the implementation manner of the present application, multiple groups of test conditions can be set. For each cooling zone, tests can be performed separately under each group of test conditions to obtain the heat dissipation performance parameters corresponding to each group of test conditions, so as to test the heat dissipation capacity of each cooling zone under different working conditions.

[0055] In an embodiment of the present application, a radiator is designed with multiple coolant outlets and multiple cooling zones corresponding to the multiple coolant outlets. During testing, the heat dissipation performance parameters of each cooling zone under test conditions are obtained, and when each cooling zone is tested, other cooling zones in the multiple cooling zones are blocked. The radiator with a multi-outlet structure can be tested independently in different areas, ensuring that the heat dissipation performance of each cooling zone under different working conditions can be accurately evaluated, thereby improving the effectiveness of the test.

[0056] In some embodiments of this application, please refer to Figure 3 The plurality of coolant outlets may include a first outlet and a second outlet, and the plurality of cooling zones may include a first cooling zone and a second cooling zone. When the radiator is operating normally, the coolant flowing into the radiator flows out from the first outlet through the first cooling zone, or flows out from the second outlet through the first cooling zone and the second cooling zone in sequence.

[0057] Obtaining the heat dissipation performance parameters of each cooling zone under test conditions may include: when testing the first cooling zone, closing the second outlet and blocking the second cooling zone, so that the coolant flows into the radiator from the coolant inlet and flows out from the first outlet through the first cooling zone, and obtaining the heat dissipation performance parameters of the first cooling zone under test conditions.

[0058] Specifically, Figure 4 As shown, when testing the first cooling zone (zone 1 RAD1), the second outlet Outlet2 needs to be closed and the second cooling zone (zone 2 RAD2) is blocked with a cover plate. On the one hand, it ensures that all coolant flowing through the radiator only passes through the first cooling zone RAD1 and is discharged from the first outlet Outlet1. On the other hand, it prevents air from flowing into the second cooling zone RAD2 to avoid interfering with the test results of the first cooling zone RAD1.

[0059] Similarly, obtaining the heat dissipation performance parameters of each cooling zone under test conditions may also include: when testing the second cooling zone, closing the coolant inlet and blocking the first cooling zone, so that the coolant flows into the radiator from the first outlet, passes through the second cooling zone and flows out from the second outlet, and obtaining the heat dissipation performance parameters of the second cooling zone under test conditions.

[0060] Specifically, Figure 5As shown, when testing the second cooling zone (area two RAD2), the coolant inlet Inlet needs to be closed, and the first cooling zone (area one RAD1) needs to be blocked with a cover plate. It should be noted that under normal working conditions, the first outlet Outlet1 is only used as a coolant outlet, but during testing, in order to measure the performance parameters of the second cooling zone, after the coolant inlet Inlet is closed, the first outlet Outlet1 will be temporarily used as a coolant inlet, and the coolant can enter from the first outlet Outlet1 and be discharged from the second outlet Outlet2. On the one hand, the coolant can be prevented from flowing directly into the first cooling zone RAD1, so that the coolant can only flow through the second cooling zone RAD2 and be discharged from the second outlet Outlet2. On the other hand, air is prevented from circulating to the first cooling zone RAD1 to ensure that the second cooling zone RAD2 works independently.

[0061] In this way, the heat dissipation performance of the first cooling area RAD1 and the second cooling area RAD2 can be tested to evaluate the heat dissipation quality of the radiator.

[0062] In some embodiments of the present application, obtaining the heat dissipation performance parameters of each cooling zone under test conditions may include: modeling the cooling system where the heat sink is located, for example, according to Figure 3 The structure shown makes the main water pump and the first cooling zone RAD1 of the radiator located on the main path of the cooling system and responsible for the main cooling task. The intercooler, the second cooling zone RAD2 of the radiator, the enhanced water pump, the electric drive and the electronic control unit are connected in parallel and selectively participate in the cooling process. At the same time, the radiator is modeled, for example, according to the actual physical size of the radiator and the size of the cooling zone. Subsequently, based on the model obtained by the modeling, a simulation test is performed according to the test conditions to record the heat dissipation performance parameters of each cooling zone.

[0063] Through modeling and simulation testing, the heat dissipation performance parameters of each cooling zone under test conditions can be easily obtained, thereby improving test accuracy.

[0064] Figure 6 The following is a schematic diagram of the implementation process of a control method for a cooling system provided by an embodiment of the present application, which can be applied to a vehicle. The above-mentioned vehicle may refer to a hybrid vehicle, a pure electric vehicle, a fuel vehicle or other types of vehicles, which is not limited in the present application. The structure of the above-mentioned vehicle and its internal cooling system and radiator can be referred to the above description, which is not elaborated in the present application.

[0065] Specifically, the control method of the cooling system may include the following steps S601 to S603.

[0066] Step S601, obtaining the low-temperature circuit water temperature of the vehicle.

[0067] The low-temperature circuit water temperature is the temperature of the coolant after the radiator dissipates heat, which can be Figure 3 The sensor shown is arranged between the enhanced water pump and the electric drive and electronic control unit.

[0068] Step S602, when the low-temperature circuit water temperature is less than or equal to the first temperature threshold, control the main circuit water pump to operate.

[0069] Step S603, when the low-temperature circuit water temperature is greater than the first temperature threshold, the main water pump and the enhanced water pump are controlled to run simultaneously.

[0070] The enhanced water pump is used to increase the amount of coolant flowing through the second cooling zone.

[0071] Specifically, when the low-temperature circuit water temperature is less than or equal to the first temperature threshold, it means that the coolant temperature is low. At this time, it is only necessary to control the operation of the main water pump to ensure the normal coolant circulation of the cooling system. When the low-temperature circuit water temperature is greater than the first temperature threshold, it means that the coolant temperature is high. At this time, it is necessary to control the main water pump and the enhanced water pump to operate at the same time. By increasing the amount of coolant flowing through the second cooling zone through the enhanced water pump, the heat dissipation capacity of the radiator is improved, thereby achieving a better cooling effect.

[0072] In an embodiment of the present application, for the above-mentioned radiator with multiple coolant outlets and multiple cooling zones, the main water pump and the enhanced water pump are used to work in coordination. When the low-temperature circuit water temperature is less than or equal to the first temperature threshold, the main water pump is controlled to operate. When the low-temperature circuit water temperature is greater than the first temperature threshold, the main water pump and the enhanced water pump are controlled to operate simultaneously to increase the amount of coolant flowing through the second cooling zone, thereby improving the heat dissipation capacity when the heat dissipation demand is high and ensuring the normal operation of the vehicle.

[0073] Specifically, in the process of controlling the main water pump and the enhanced water pump to operate simultaneously, it may also include: when the low-temperature circuit water temperature is greater than the second temperature threshold, controlling the enhanced water pump to operate according to the first water pump duty cycle. When the low-temperature circuit water temperature is less than or equal to the second temperature threshold, controlling the enhanced water pump to operate according to the second water pump duty cycle.

[0074] Among them, the second temperature threshold is higher than the first temperature threshold, and the duty cycle of the first water pump is greater than the duty cycle of the second water pump. If the low-temperature circuit water temperature is greater than the second temperature threshold, it means that the coolant water temperature is too high, and it is necessary to control the operation of the water pump with a higher duty cycle of the first water pump to speed up the flow of coolant and achieve a higher cooling effect. If it is greater than the first temperature threshold and less than or equal to the second temperature threshold, it means that the coolant water temperature is slightly high, and it is necessary to control the operation of the water pump with a lower duty cycle of the first water pump to reduce power consumption while ensuring the cooling effect.

[0075] In addition, the control method of the cooling system may further include: when the low-temperature circuit water temperature is less than or equal to a first temperature threshold, controlling the fan to cool the coolant passing through the radiator according to a first fan duty cycle.

[0076] When the low-temperature circuit water temperature is greater than the first temperature threshold and less than or equal to the second temperature threshold, the fan is controlled to cool the coolant passing through the radiator according to the second fan duty cycle.

[0077] When the low-temperature circuit water temperature is greater than the second temperature threshold, the fan is controlled to cool the coolant passing through the radiator according to a third fan duty cycle.

[0078] The second fan duty cycle is smaller than the third fan duty cycle and larger than the first fan duty cycle. That is, the fan duty cycle can be gradually increased according to the range of the low-temperature circuit water temperature.

[0079] It should be noted that the above-mentioned first temperature threshold, second temperature threshold, first water pump duty cycle, second water pump duty cycle, first fan duty cycle, second fan duty cycle, and third fan duty cycle can be set according to actual conditions. Specifically, the first temperature threshold T0 can range from 50°C to 55°C, preferably 55°C according to energy consumption and control response; the second temperature threshold T1 can range from 55°C to 65°C, preferably 62°C according to energy consumption and control response; the first water pump duty cycle N1 can range from 40% to 60%, preferably 50% according to energy consumption and control response; the second water pump duty cycle N2 can range from 60% to 80%, preferably 80% according to energy consumption and control response; the first fan duty cycle M1 can range from 60% to 80%, preferably 80% according to energy consumption and control response; the second fan duty cycle M2 can range from 80% to 85%, preferably 85% according to energy consumption and control response; the third fan duty cycle M3 can range from 85% to 95%, preferably 95% according to energy consumption and control response.

[0080] When the low-temperature circuit water temperature is ≤ the first temperature threshold T0, the cooling system adopts the normal mode. At this time, only the main water pump works to maintain the basic cooling cycle, and the fan duty cycle is set to the first fan duty cycle M1 to ensure sufficient heat dissipation capacity under normal operation. When the first temperature threshold T0≤the low-temperature circuit water temperature≤the second temperature threshold T1, the cooling system adopts the first enhanced mode, starts the enhanced water pump, and runs at the first water pump duty cycle N1, increasing the amount of coolant flowing to the second cooling zone of the radiator. At the same time, the fan duty cycle is increased to the second fan duty cycle M2, which enhances air circulation and accelerates heat dissipation. When the low-temperature circuit water temperature is greater than the second temperature threshold T1, the cooling system adopts the second enhanced mode, and the enhanced water pump will run at a higher second water pump duty cycle N2, further increasing the coolant flow. The fan is also adjusted to the overly high third fan duty cycle M3 to fully support the heat dissipation process.

[0081] In this way, the cooling system can adjust the heat dissipation capacity in real time according to the current coolant conditions to ensure the normal operation of the vehicle.

[0082] It should be noted that, for the sake of simplicity of description, the aforementioned method embodiments are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited to the described order of actions, because according to the present application, certain steps can be performed in other orders.

[0083] like Figure 7 Shown is a schematic structural diagram of a heat sink testing device 700 provided in an embodiment of the present application, wherein the heat sink testing device 700 is configured on a testing device.

[0084] Specifically, the heat sink testing device 700 may include:

[0085] A test condition acquisition unit 701, used to acquire the test condition of the radiator;

[0086] The testing unit 702 is used to obtain the heat dissipation performance parameters of each cooling zone under the testing conditions, wherein when each cooling zone is tested, other cooling zones in the plurality of cooling zones are blocked.

[0087] In some embodiments of the present application, the plurality of coolant outlets include a first outlet and a second outlet, and the plurality of cooling zones include a first cooling zone and a second cooling zone; the testing unit 702 may be specifically used to: when testing the first cooling zone, close the second outlet and seal the second cooling zone, so that the coolant flows into the radiator from the coolant inlet, passes through the first cooling zone and flows out from the first outlet, and obtains the heat dissipation performance parameters of the first cooling zone under the test conditions; when testing the second cooling zone, close the coolant inlet and seal the first cooling zone, so that the coolant flows into the radiator from the first outlet, passes through the second cooling zone and flows out from the second outlet, and obtains the heat dissipation performance parameters of the second cooling zone under the test conditions.

[0088] In some embodiments of the present application, the test conditions include the temperature difference between the coolant and the air passing through the radiator and / or the type of the coolant.

[0089] It should be noted that, for the convenience and simplicity of description, the specific working process of the heat sink testing device 700 can be referred to Figures 1 to 6 The corresponding process of the method will not be repeated here.

[0090] like Figure 8Shown is a schematic structural diagram of a cooling system control device 800 provided in an embodiment of the present application, wherein the cooling system control device 800 is configured on a vehicle.

[0091] Specifically, the control device 800 of the cooling system may include:

[0092] A water temperature acquisition unit 801 is used to acquire the low-temperature circuit water temperature of the vehicle, where the low-temperature circuit water temperature is the temperature of the coolant after the coolant is cooled by the radiator;

[0093] A first control unit 802 is used to control the main water pump to operate when the water temperature of the low-temperature circuit is less than or equal to a first temperature threshold;

[0094] The second control unit 803 is used to control the main water pump and the enhanced water pump to run simultaneously when the water temperature of the low-temperature circuit is greater than the first temperature threshold, and the enhanced water pump is used to increase the amount of coolant flowing through the second cooling zone.

[0095] In some embodiments of the present application, the second control unit 803 may be specifically used to: when the water temperature of the low-temperature circuit is greater than the second temperature threshold, control the enhanced water pump to operate according to the first water pump duty cycle; when the water temperature of the low-temperature circuit is less than or equal to the second temperature threshold, control the enhanced water pump to operate according to the second water pump duty cycle, and the first water pump duty cycle is greater than the second water pump duty cycle.

[0096] In some embodiments of the present application, the first control unit 802 may be specifically used to: when the low-temperature circuit water temperature is less than or equal to the first temperature threshold, control the fan to cool the coolant passing through the radiator according to the first fan duty cycle; the second control unit 803 may be specifically used to: when the low-temperature circuit water temperature is greater than the first temperature threshold and less than or equal to the second temperature threshold, control the fan to cool the coolant passing through the radiator according to the second fan duty cycle; when the low-temperature circuit water temperature is greater than the second temperature threshold, control the fan to cool the coolant passing through the radiator according to the third fan duty cycle, wherein the second fan duty cycle is less than the third fan duty cycle and greater than the first fan duty cycle.

[0097] It should be noted that, for the convenience and simplicity of description, the specific working process of the heat sink testing device 800 can be referred to Figures 1 to 6 The corresponding process of the method will not be repeated here.

[0098] like Fig. 9, which is a schematic diagram of a test device provided in an embodiment of the present application. Specifically, the test device 9 may include: a processor 90, a memory 91, and a computer program 92 stored in the memory 91 and executable on the processor 90, such as a test program for a radiator.

[0099] When the processor 90 executes the computer program 92, the steps in the above-mentioned various heat sink testing method embodiments are implemented, for example: Figure 1 Alternatively, when the processor 90 executes the computer program 92, the functions of each module / unit in the above-mentioned device embodiments are realized, for example Figure 7 The functions of the test condition acquisition unit 701 and the test unit 702 are shown.

[0100] The computer program may be divided into one or more modules / units, which are stored in the memory 91 and executed by the processor 90 to complete the present application. The one or more modules / units may be a series of computer program instruction segments capable of completing specific functions, which are used to describe the execution process of the computer program in the test device.

[0101] The test device may include, but is not limited to, a processor 90 and a memory 91. Those skilled in the art will appreciate that Fig. 9 It is only an example of the test device and does not constitute a limitation of the test device. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the test device may also include input and output devices, network access equipment, buses, etc.

[0102] The processor 90 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), off-the-shelf programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0103] The memory 91 may be an internal storage unit of the test device, such as a hard disk or memory of the test device. The memory 91 may also be an external storage device of the test device, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. equipped on the test device. Further, the memory 91 may also include both an internal storage unit of the test device and an external storage device. The memory 91 is used to store the computer program and other programs and data required by the test device. The memory 91 may also be used to temporarily store data that has been output or is to be output.

[0104] It should be noted that, for the convenience and brevity of description, the structure of the above-mentioned testing device can also refer to the specific description of the structure in the method embodiment, and will not be repeated here.

[0105] Similar, such as Fig.10 , which is a schematic diagram of a vehicle provided by an embodiment of the present application. Specifically, the vehicle 10 may include: a processor 100, a memory 101, and a computer program 102 stored in the memory 101 and executable on the processor 100, such as a control program for a cooling system.

[0106] When the processor 100 executes the computer program 102, the steps in the above-mentioned various cooling system control method embodiments are implemented, for example: Figure 6 Alternatively, when the processor 100 executes the computer program 102, the functions of each module / unit in the above-mentioned device embodiments are implemented, for example Figure 8 The functions of the acquisition unit 801, the first control unit 802 and the second control unit 803 are shown.

[0107] The computer program may be divided into one or more modules / units, which are stored in the memory 101 and executed by the processor 100 to complete the present application. The one or more modules / units may be a series of computer program instruction segments capable of completing specific functions, which are used to describe the execution process of the computer program in the vehicle.

[0108] It should be noted that, for the convenience and simplicity of description, the structure of the above vehicle can also refer to the specific description of the structure in the method embodiment, which will not be repeated here. The implementation form of each component, such as the processor 100 and the memory 101, can refer to the description of the test equipment, which will not be repeated here.

[0109] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0110] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0111] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0112] In the embodiments provided in the present application, it should be understood that the disclosed devices / vehicles and methods can be implemented in other ways. For example, the device / vehicle embodiments described above are merely schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0113] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0114] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0115] If the integrated module / unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0116] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A method for testing a radiator, characterized in that: The radiator is arranged in a cooling system, the radiator is provided with a single coolant inlet and a plurality of coolant outlets, the radiator comprises a plurality of cooling zones corresponding one to one with the plurality of coolant outlets, and the testing method of the radiator comprises: Obtaining test conditions of the radiator; The heat dissipation performance parameters of each cooling zone under the test conditions are obtained, wherein when each cooling zone is tested, other cooling zones among the plurality of cooling zones are blocked.

2. The method for testing a heat sink according to claim 1, wherein: The plurality of cooling liquid outlets include a first outlet and a second outlet, and the plurality of cooling zones include a first cooling zone and a second cooling zone; The obtaining of the heat dissipation performance parameters of each cooling zone under the test conditions includes: When testing the first cooling zone, the second outlet is closed and the second cooling zone is blocked, so that the coolant flows into the radiator from the coolant inlet and flows out of the first outlet through the first cooling zone, and the heat dissipation performance parameters of the first cooling zone under the test conditions are obtained; When testing the second cooling zone, the coolant inlet is closed and the first cooling zone is blocked, so that the coolant flows into the radiator from the first outlet and flows out from the second outlet through the second cooling zone, and the heat dissipation performance parameters of the second cooling zone under the test conditions are obtained.

3. The method for testing a heat sink according to claim 1, wherein: The test conditions include the temperature difference between the coolant and the air passing through the radiator and / or the type of coolant.

4. A method for controlling a cooling system, characterized in that: The cooling system comprises a radiator, the radiator comprises a first cooling zone and a second cooling zone, the coolant flowing into the radiator flows out through the first cooling zone, or flows out through the first cooling zone and the second cooling zone in sequence; the cooling system is also provided with a main water pump and an enhanced water pump; The control method of the cooling system comprises: Acquiring a low-temperature circuit water temperature of the cooling system, wherein the low-temperature circuit water temperature is a temperature of the coolant after heat is dissipated by the radiator; When the water temperature of the low-temperature circuit is less than or equal to a first temperature threshold, controlling the main water pump to operate; When the water temperature of the low-temperature circuit is greater than a first temperature threshold, the main water pump and the enhanced water pump are controlled to run simultaneously, and the enhanced water pump is used to increase the amount of coolant flowing through the second cooling zone.

5. The control method of the cooling system according to claim 4, characterized in that: The process of controlling the main water pump and the enhanced water pump to operate simultaneously also includes: When the water temperature of the low-temperature circuit is greater than a second temperature threshold, controlling the enhanced water pump to operate according to the first water pump duty cycle; When the low-temperature circuit water temperature is less than or equal to the second temperature threshold, the enhanced water pump is controlled to operate according to a second water pump duty cycle, and the first water pump duty cycle is greater than the second water pump duty cycle.

6. The control method of the cooling system according to claim 4, characterized in that: The control method of the cooling system further includes: When the low-temperature circuit water temperature is less than or equal to a first temperature threshold, controlling the fan to cool the coolant passing through the radiator according to a first fan duty cycle; When the low-temperature circuit water temperature is greater than a first temperature threshold and less than or equal to a second temperature threshold, controlling the fan to cool the coolant passing through the radiator according to a second fan duty cycle; When the low-temperature circuit water temperature is greater than a second temperature threshold, the fan is controlled to cool the coolant passing through the radiator according to a third fan duty cycle, wherein the second fan duty cycle is less than the third fan duty cycle and greater than the first fan duty cycle.

7. A computer program product, characterized in that It comprises a computer program, which, when executed, enables the method for testing the radiator according to any one of claims 1 to 3 to be executed, or enables the method for controlling the cooling system according to any one of claims 4 to 6 to be executed.

8. A test device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the steps of the heat sink testing method according to any one of claims 1 to 3 are implemented.

9. A vehicle comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: The cooling system of the vehicle includes a radiator, and the radiator includes a first cooling zone and a second cooling zone. The coolant flowing into the radiator flows out through the first cooling zone, or flows out through the first cooling zone and the second cooling zone in sequence; the cooling system is also provided with a main water pump and an enhanced water pump; when the processor executes the computer program, the steps of the control method of the cooling system as described in any one of claims 4 to 6 are implemented.

10. The vehicle according to claim 9, characterized in that The cooling system further includes a fan for supplying air to the first cooling zone and the second cooling zone.

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