Multi-zone coolant switching test system and method

Abstract

The application provides a multi-temperature-zone cooling liquid switching test system and method, and the cooling device comprises a plurality of water tank units, each water tank unit comprises at least one water tank, at least one first electromagnetic valve and at least one second electromagnetic valve; a host computer, a control circuit, each water tank unit and a device under test are sequentially connected; the control circuit acquires a first control signal of the host computer, controls the opening degree of a target first electromagnetic valve based on the first control signal; a target water tank controls the circulation of cooling liquid based on the opening degree of the target first electromagnetic valve; the control circuit acquires a second control signal of the host computer, controls the opening degree of a target second electromagnetic valve based on the second control signal; the target water tank transmits cooling liquid to the device under test based on the opening degree of the target second electromagnetic valve, and controls the temperature and flow of the cooling liquid. The water tank stores cooling liquid at different temperatures, the time for adjusting the temperature of the cooling liquid is reduced, and the cooling liquid is pretreated by different water tanks, so that the temperature of the cooling liquid can be quickly switched.

Description

Technical Field

[0001] This invention relates to the field of automotive testing technology, and in particular to a multi-temperature zone coolant switching testing system and method. Background Technology

[0002] Currently, coolant temperature control in electric vehicle controllers is generally achieved through a compressor and heater within the water chiller. Temperature control is mainly divided into on-off control and PID (Proportional Integral Differential) control. On-off control is primarily used in lower-end applications where temperature accuracy requirements are not high, while PID control offers smoother switching and more precise control compared to on-off control. However, in both modes, the coolant heating and cooling require the compressor or heater to operate for a considerable period, resulting in a long heating or cooling time, which is unsuitable for tests requiring rapid coolant temperature changes. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a multi-temperature zone coolant switching test system and method to achieve rapid switching of the coolant used by the controller.

[0004] In a first aspect, embodiments of the present invention provide a multi-temperature zone coolant switching test system, comprising: a control circuit, a cooling device, and a device under test; the cooling device includes multiple water tank units, each water tank unit including: at least one water tank, at least one first solenoid valve, and at least one second solenoid valve; each water tank contains coolant at different temperatures; a host computer, the control circuit, each water tank unit, and the device under test are sequentially connected; the control circuit is used to acquire a first control signal from the host computer and control the opening degree of the target first solenoid valve based on the first control signal; the target water tank is used to control the coolant flow based on the opening degree of the target first solenoid valve; the control circuit is also used to acquire a second control signal from the host computer and control the opening degree of the target second solenoid valve based on the second control signal; wherein, the target water tank, the target first solenoid valve, and the target second solenoid valve belong to the same water tank unit; the target water tank is also used to transmit coolant to the device under test based on the opening degree of the target second solenoid valve, and control the coolant temperature and coolant flow rate.

[0005] In an optional embodiment of this application, each water tank unit further includes: at least one first temperature sensor, wherein the water tank, the first temperature sensor, and the first solenoid valve are connected in sequence; the first temperature sensor is used to acquire the water tank temperature; the control circuit is also used to acquire the target water tank temperature sent by the target first temperature sensor, and control the opening degree of the target first solenoid valve based on the target water tank temperature and the first control signal.

[0006] In an optional embodiment of this application, each water tank unit further includes: at least one second temperature sensor, a second solenoid valve, the second temperature sensor and the device under test are connected in sequence; the second temperature sensor is used to acquire the coolant temperature; the control circuit is also used to acquire the target coolant temperature sent by the target second temperature sensor, and control the opening degree of the target second solenoid valve based on the target coolant temperature and the second control signal.

[0007] In an optional embodiment of this application, each water tank unit further includes: at least one flow meter, a second solenoid valve, the flow meter and a second temperature sensor connected in sequence; the flow meter is used to acquire the coolant flow rate; the control circuit is also used to acquire the target coolant flow rate sent by the target flow meter, and control the opening degree of the target second solenoid valve based on the target coolant flow rate and the second control signal.

[0008] In an optional embodiment of this application, the control circuit, the first solenoid valve of each water tank unit, the water tank of each water tank unit, the second solenoid valve of each water tank unit, and the inlet of the device under test are connected in sequence; the outlet of the device under test is connected to the water tank of each water tank unit.

[0009] Secondly, embodiments of the present invention also provide a multi-temperature zone coolant switching test method, applied to the aforementioned multi-temperature zone coolant switching test system. The multi-temperature zone coolant switching test method includes: a control circuit acquiring a first control signal from a host computer, and controlling the opening degree of a target first solenoid valve based on the first control signal; a target water tank controlling coolant flow based on the opening degree of the target first solenoid valve; the control circuit acquiring a second control signal from the host computer, and controlling the opening degree of a target second solenoid valve based on the second control signal; wherein the target water tank, the target first solenoid valve, and the target second solenoid valve belong to the same water tank unit; the target water tank transmitting coolant to the device under test based on the opening degree of the target second solenoid valve, and controlling the coolant temperature and coolant flow rate.

[0010] In an optional embodiment of this application, the step of the control circuit controlling the opening degree of the target first solenoid valve based on the first control signal includes: the control circuit acquiring the target water tank temperature sent by the target first temperature sensor, and controlling the opening degree of the target first solenoid valve based on the target water tank temperature and the first control signal.

[0011] In an optional embodiment of this application, the step of the control circuit controlling the opening degree of the target second solenoid valve based on the second control signal includes: the control circuit acquiring the target coolant temperature sent by the target second temperature sensor, and controlling the opening degree of the target second solenoid valve based on the target coolant temperature and the second control signal.

[0012] In an optional embodiment of this application, the method further includes: a control circuit acquiring the target coolant flow rate sent by the target flow meter, and controlling the opening degree of the target second solenoid valve based on the target coolant flow rate and a second control signal.

[0013] In an optional embodiment of this application, the above method further includes: the control circuit acquiring a temperature switching signal sent by the host computer, and determining the first water tank corresponding to the coolant temperature of the temperature switching signal; the control circuit sending a closing signal to the currently open second solenoid valve to close the currently open second solenoid valve; and the control circuit sending an opening signal to the second solenoid valve corresponding to the first water tank to open the second solenoid valve corresponding to the first water tank.

[0014] The embodiments of the present invention bring the following beneficial effects: This invention provides a multi-temperature zone coolant switching test system and method. A control circuit acquires a first control signal from a host computer and controls the opening of a target first solenoid valve based on this signal. A target water tank controls coolant flow based on the opening of the target first solenoid valve. The control circuit also acquires a second control signal from the host computer and controls the opening of a target second solenoid valve based on this signal. The target water tank, the target first solenoid valve, and the target second solenoid valve belong to the same water tank unit. The target water tank also transmits coolant to the device under test based on the opening of the target second solenoid valve, controlling the coolant temperature and flow rate. Compared to traditional electric vehicle controller water-cooling systems, this method controls water flow based on the solenoid valve opening, stores coolant at different temperatures in the tank, reduces coolant temperature adjustment time, and enables rapid coolant temperature switching through pre-treatment of the coolant in different water tanks.

[0015] Other features and advantages of this disclosure will be set forth in the following description, or some features and advantages may be inferred from the description or determined without doubt, or may be learned by practicing the techniques described above.

[0016] To make the above-mentioned objects, features and advantages of this disclosure more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1This is a schematic diagram of a multi-temperature zone coolant switching test system provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of another multi-temperature zone coolant switching test system provided in an embodiment of the present invention; Figure 3 A flowchart of a multi-temperature zone coolant switching test method provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Currently, coolant temperature control in electric vehicle controllers is mainly divided into switching control and PID control. Switching control has low temperature accuracy, while PID control has better accuracy and stability compared to switching control. However, both require the heater or compressor to work for a period of time to heat up or cool down the coolant, which takes a long time and cannot meet the requirements for tests that require rapid changes in coolant temperature.

[0021] Based on this, the multi-temperature zone coolant switching test system and method provided in this embodiment of the invention can be applied to the field of electric vehicle controller testing, reducing the time for coolant temperature adjustment, and enabling rapid switching of coolant temperature by pre-treating the coolant in different water tanks.

[0022] To facilitate understanding of this embodiment, a multi-temperature zone coolant switching test system disclosed in this embodiment of the invention will first be described in detail.

[0023] Example 1: This invention provides a multi-temperature zone coolant switching test system, see [link / reference]. Figure 1 The diagram shows a multi-temperature zone coolant switching test system. The system includes a control circuit, a cooling device, and a device under test. The cooling device includes multiple water tank units, each of which includes at least one water tank, at least one first solenoid valve, and at least one second solenoid valve. Each water tank contains coolant at different temperatures. The host computer, control circuit, each water tank unit, and device under test are connected sequentially.

[0024] like Figure 1As shown, the control circuit in this embodiment can communicate with a host computer. This embodiment can set up n water tank units, and each water tank can be equipped with at least one water tank (…). Figure 1 Each water tank in the system can be equipped with one water tank, i.e., water tank 1-water tank n), and at least one first solenoid valve. Figure 1 Each water tank in the system can be equipped with a first solenoid valve (i.e., first solenoid valve 1 - first solenoid valve n) and at least one second solenoid valve ( Figure 1 Each water tank in the system can be equipped with a second solenoid valve, namely, second solenoid valve 1 to second solenoid valve n.

[0025] like Figure 1 As shown, the control circuit can be connected to the first solenoid valve 1-n respectively to monitor and control the opening degree of the first solenoid valve 1-n; the control circuit can be connected to the second solenoid valve 1-n respectively to monitor and control the opening degree of the second solenoid valve 1-n.

[0026] The control circuit is used to acquire a first control signal from the host computer and control the opening degree of the target first solenoid valve based on the first control signal; the target water tank is used to control the flow of coolant based on the opening degree of the target first solenoid valve; the control circuit is also used to acquire a second control signal from the host computer and control the opening degree of the target second solenoid valve based on the second control signal; wherein, the target water tank, the target first solenoid valve, and the target second solenoid valve belong to the same water tank unit; the target water tank is also used to transmit coolant to the device under test based on the opening degree of the target second solenoid valve and control the coolant temperature and coolant flow rate.

[0027] In this embodiment, the control circuit can acquire the first control signal sent by the host computer, and control the opening degree of the target first solenoid valve based on the first control signal, thereby controlling the flow of coolant in the target water tank. At this time, the temperature of the target water tank can be controlled.

[0028] In this embodiment, the control circuit can also acquire a second control signal sent by the host computer, and control the opening degree of the target second solenoid valve based on the second control signal, thereby controlling the coolant temperature and coolant flow rate of the target water tank. At this time, the target water tank can transmit coolant to the device under test based on the opening degree of the target second solenoid valve.

[0029] like Figure 1 As shown, the target water tank, the target first solenoid valve, and the target second solenoid valve can be water tank x, first solenoid valve x, and second solenoid valve x respectively (where 1≤x≤n). The control circuit can control the opening degree of the first solenoid valve x, thereby controlling the flow of coolant in water tank x; the control circuit can also control the opening degree of the second solenoid valve x, thereby controlling the flow of coolant in water tank x.

[0030] In some embodiments, the control circuit, the first solenoid valve of each water tank unit, the water tank of each water tank unit, the second solenoid valve of each water tank unit, and the inlet of the device under test are connected in sequence; the outlet of the device under test is connected to the water tank of each water tank unit.

[0031] like Figure 1 As shown, the control circuit, the first solenoid valve 1-n, the water tank 1-n, the second solenoid valve 1-n, and the water inlet of the device under test are connected in sequence; the water outlet of the device under test is connected to the water tank 1-n.

[0032] In this embodiment, the coolant can enter the device under test through the inlet and leave the device under test through the outlet, so that the temperature of the coolant can be switched later.

[0033] This invention provides a multi-temperature zone coolant switching test system. The control circuit acquires a first control signal from the host computer and controls the opening of a target first solenoid valve based on this signal. A target water tank controls coolant flow based on the opening of the target first solenoid valve. The control circuit also acquires a second control signal from the host computer and controls the opening of a target second solenoid valve based on this signal. The target water tank, the target first solenoid valve, and the target second solenoid valve belong to the same water tank unit. The target water tank also transmits coolant to the device under test based on the opening of the target second solenoid valve, controlling the coolant temperature and flow rate. Compared to traditional electric vehicle controller water-cooling systems, this method controls coolant flow based on the solenoid valve opening, stores coolant at different temperatures in the water tank, reduces coolant temperature adjustment time, and enables rapid coolant temperature switching through pre-treatment of the coolant in different water tanks.

[0034] Example 2: This invention provides another multi-temperature zone coolant switching test system, which is implemented based on the above embodiments. The specific architecture of the multi-temperature zone coolant switching test system is described in detail.

[0035] In some embodiments, each water tank unit further includes: at least one first temperature sensor, wherein the water tank, the first temperature sensor, and the first solenoid valve are connected in sequence; the first temperature sensor is used to acquire the water tank temperature; the control circuit is also used to acquire the target water tank temperature sent by the target first temperature sensor, and control the opening degree of the target first solenoid valve based on the target water tank temperature and the first control signal.

[0036] See also Figure 2 The diagram shows another multi-temperature zone coolant switching test system. The control circuit can be connected to the first temperature sensor 1-n ( Figure 2Each water tank unit includes a first temperature sensor (i.e., first temperature sensors 1-n) connected together to monitor the water tank temperature. In this embodiment, the control circuit can control the opening degree of the target first solenoid valve corresponding to the target first temperature sensor based on the target water tank temperature sent by the target first temperature sensor and a first control signal, thereby controlling the water tank temperature of the target water tank.

[0037] In some embodiments, each water tank unit further includes: at least one second temperature sensor, a second solenoid valve, the second temperature sensor and the device under test are connected in sequence; the second temperature sensor is used to acquire the coolant temperature; the control circuit is also used to acquire the target coolant temperature sent by the target second temperature sensor, and control the opening degree of the target second solenoid valve based on the target coolant temperature and the second control signal.

[0038] like Figure 2 As shown, the control circuit can be connected to the second temperature sensor 1-n ( Figure 2 Each water tank unit includes a second temperature sensor (i.e., second temperature sensors 1-n) connected together to monitor the coolant temperature. In this embodiment, the control circuit can control the opening degree of the target second solenoid valve corresponding to the target second temperature sensor based on the target coolant temperature sent by the target second temperature sensor and a second control signal, thereby controlling the coolant temperature output from the target water tank.

[0039] In some embodiments, each water tank unit further includes: at least one flow meter, a second solenoid valve, the flow meter and a second temperature sensor connected in sequence; the flow meter is used to acquire the coolant flow rate; the control circuit is also used to acquire the target coolant flow rate sent by the target flow meter, and control the opening degree of the target second solenoid valve based on the target coolant flow rate and the second control signal.

[0040] like Figure 2 As shown, the control circuit can be connected to flowmeters 1-n ( Figure 2 Each water tank unit includes a flow meter (i.e., flow meters 1-n) connected to monitor the coolant flow rate. In this embodiment, the control circuit can control the opening degree of the target second solenoid valve corresponding to the target flow meter based on the target coolant flow rate sent by the target flow meter and the second control signal, thereby controlling the coolant flow rate output from the target water tank.

[0041] In summary, the multi-temperature zone coolant switching test system provided in this embodiment of the invention, with water tank 1-n, first temperature sensor 1-n, and first solenoid valve 1-n connected in sequence, can achieve control of the water tank temperature and flow rate of water tank 1-n. Similarly, with water tank 1-n, second solenoid valve 1-n, flow meter 1-n, and second temperature sensor 1-n connected in sequence, it can achieve control of the coolant temperature and flow rate output from water tank 1-n. In this embodiment, the coolant in water tank 1-n can be pre-treated to the required temperature, thereby enabling rapid switching of coolant temperature.

[0042] Example 3: This invention provides a multi-temperature zone coolant switching test method, implemented based on the aforementioned embodiments, and applied to the multi-temperature zone coolant switching test system provided in the aforementioned embodiments. (See also...) Figure 3 The flowchart shown illustrates a multi-temperature zone coolant switching test method, which includes the following steps: In step S302, the control circuit acquires the first control signal from the host computer and controls the opening degree of the target first solenoid valve based on the first control signal; the target water tank controls the flow of coolant based on the opening degree of the target first solenoid valve.

[0043] like Figure 2 As shown, in this embodiment, the host computer can control the opening of the first solenoid valve 1-n through the control circuit to control the flow of coolant in the water tank 1-n. Before the test starts, the coolant in the water tank 1-n can be circulated, thus meeting the test temperature requirements in advance.

[0044] In some embodiments, the control circuit acquires the target water tank temperature sent by the target first temperature sensor, and controls the opening degree of the target first solenoid valve based on the target water tank temperature and the first control signal.

[0045] like Figure 2 As shown, in this embodiment, the first temperature sensor 1-n can monitor the water tank temperature of water tank 1-n, and the control circuit can control the flow of coolant in the target water tank 1-n according to the water tank temperature of water tank 1-n monitored by the first temperature sensor 1-n and the first control signal.

[0046] In step S304, the control circuit acquires the second control signal from the host computer and controls the opening degree of the target second solenoid valve based on the second control signal; wherein, the target water tank, the target first solenoid valve, and the target second solenoid valve belong to the same water tank unit; the target water tank transmits coolant to the device under test based on the opening degree of the target second solenoid valve and controls the coolant temperature and coolant flow rate.

[0047] like Figure 2As shown, in this embodiment, the host computer can control the opening degree of the second solenoid valve 1-n through the control circuit to control the coolant temperature and coolant flow rate output from the water tank 1-n.

[0048] At the start of the test, the host computer can close the first solenoid valve 1-n through the control circuit and open the target second solenoid valve from the second solenoid valve 1-n. The target water tank transmits coolant to the device under test based on the opening degree of the target second solenoid valve, thereby controlling the coolant temperature and coolant flow rate so that the device under test meets the requirements.

[0049] In some embodiments, the control circuit acquires the target coolant temperature sent by the target second temperature sensor, and controls the opening degree of the target second solenoid valve based on the target coolant temperature and the second control signal.

[0050] like Figure 2 As shown, in this embodiment, the second temperature sensor 1-n can monitor the coolant temperature of the water tank 1-n. The control circuit can control the coolant temperature output by the target water tank 1-n based on the coolant temperature output by the water tank 1-n monitored by the second temperature sensor 1-n and the second control signal.

[0051] In some embodiments, the control circuit acquires the target coolant flow rate sent by the target flow meter, and controls the opening degree of the target second solenoid valve based on the target coolant flow rate and a second control signal.

[0052] like Figure 2 As shown, in this embodiment, the flow meter 1-n can monitor the coolant flow rate of the water tank 1-n. The control circuit can control the coolant flow rate output by the target water tank 1-n based on the coolant flow rate monitored by the flow meter 1-n and the second control signal.

[0053] In some embodiments, the control circuit acquires the temperature switching signal sent by the host computer and determines the first water tank corresponding to the coolant temperature of the temperature switching signal; the control circuit sends a closing signal to the currently open second solenoid valve to close the currently open second solenoid valve; the control circuit sends an opening signal to the second solenoid valve corresponding to the first water tank to open the second solenoid valve corresponding to the first water tank.

[0054] When a rapid temperature switch is required, the host computer sends a temperature switching signal to the control circuit. The control circuit then closes the currently open second solenoid valve, determines the first water tank corresponding to the coolant temperature indicated by the temperature switching signal, and opens the second solenoid valve corresponding to the first water tank, thus achieving a rapid coolant temperature switch. After a successful water tank switch, the control logic of the entire system remains consistent with that at the start of the test.

[0055] This invention provides a multi-temperature zone coolant switching test method. A control circuit acquires a first control signal from a host computer and controls the opening of a target first solenoid valve based on this signal. A target water tank controls coolant flow based on the opening of the target first solenoid valve. The control circuit also acquires a second control signal from the host computer and controls the opening of a target second solenoid valve based on this signal. The target water tank, the target first solenoid valve, and the target second solenoid valve belong to the same water tank unit. The target water tank also transmits coolant to the device under test based on the opening of the target second solenoid valve, controlling the coolant temperature and flow rate. Compared to traditional electric vehicle controller water-cooling systems, this method controls coolant flow based on the solenoid valve opening, stores coolant at different temperatures in the water tank, reduces coolant temperature adjustment time, and enables rapid coolant temperature switching through pre-treatment of the coolant in different water tanks.

[0056] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the multi-temperature zone coolant switching test method described above can be referred to the corresponding process in the aforementioned embodiments of the multi-temperature zone coolant switching test system, and will not be repeated here.

[0057] Example 4: This invention also provides an electronic device for running the above-described multi-temperature zone coolant switching test method; see also Figure 4 The diagram shows the structure of an electronic device, which includes a memory 100 and a processor 101. The memory 100 stores one or more computer instructions, which are executed by the processor 101 to implement the above-mentioned multi-temperature zone coolant switching test method.

[0058] Furthermore, Figure 4 The electronic device shown also includes a bus 102 and a communication interface 103, with the processor 101, the communication interface 103 and the memory 100 connected via the bus 102.

[0059] The memory 100 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as at least one disk storage device. Communication between this system network element and at least one other network element is achieved through at least one communication interface 103 (which can be wired or wireless), such as the Internet, wide area network, local area network, metropolitan area network, etc. The bus 102 may be an ISA bus, PCI bus, or EISA bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 4The symbol is represented by a single double-headed arrow, but this does not mean that there is only one bus or one type of bus.

[0060] Processor 101 may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method can be completed by the integrated logic circuitry in the hardware of processor 101 or by instructions in software form. Processor 101 can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this invention. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this invention can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software module can reside in a readily available storage medium in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, or registers. This storage medium is located in memory 100, and processor 101 reads information from memory 100 and, in conjunction with its hardware, completes the steps of the method described in the foregoing embodiments.

[0061] This invention also provides a computer-readable storage medium storing computer-executable instructions. When these computer-executable instructions are called and executed by a processor, they cause the processor to implement the above-described multi-temperature zone coolant switching test method. For specific implementation details, please refer to the method embodiments, which will not be repeated here.

[0062] The computer program product of the multi-temperature zone coolant switching test system and method provided in the embodiments of the present invention includes a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the methods in the preceding method embodiments. For specific implementation, please refer to the method embodiments, which will not be repeated here.

[0063] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the system and / or device described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0064] Furthermore, in the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0065] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, essentially, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0066] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0067] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A multi-temperature zone coolant switching test system, characterized in that, The multi-temperature zone coolant switching test system includes: a control circuit, a cooling device, and a device under test; the cooling device includes multiple water tank units, each water tank unit including: at least one water tank, at least one first solenoid valve, and at least one second solenoid valve; each water tank is filled with coolant at different temperatures; the host computer, the control circuit, each water tank unit, and the device under test are connected in sequence; The control circuit is used to acquire the first control signal from the host computer and control the opening degree of the target first solenoid valve based on the first control signal. The target water tank is used to control the flow of coolant based on the opening degree of the target first solenoid valve; The control circuit is also used to acquire the second control signal from the host computer and control the opening degree of the target second solenoid valve based on the second control signal; wherein the target water tank, the target first solenoid valve, and the target second solenoid valve belong to the same water tank unit; The target water tank is also used to transmit coolant to the device under test based on the opening degree of the target second solenoid valve, and to control the coolant temperature and coolant flow rate.

2. The multi-temperature zone coolant switching test system according to claim 1, characterized in that, Each of the water tank units further includes: at least one first temperature sensor, wherein the water tank, the first temperature sensor and the first solenoid valve are connected in sequence; The first temperature sensor is used to acquire the water tank temperature; The control circuit is also used to acquire the target water tank temperature sent by the target first temperature sensor, and control the opening degree of the target first solenoid valve based on the target water tank temperature and the first control signal.

3. The multi-temperature zone coolant switching test system according to claim 1, characterized in that, Each of the water tank units further includes: at least one second temperature sensor, wherein the second solenoid valve, the second temperature sensor and the device under test are connected in sequence; The second temperature sensor is used to acquire the temperature of the coolant; The control circuit is also used to acquire the target coolant temperature sent by the target second temperature sensor, and control the opening degree of the target second solenoid valve based on the target coolant temperature and the second control signal.

4. The multi-temperature zone coolant switching test system according to claim 3, characterized in that, Each of the water tank units further includes: at least one flow meter, and the second solenoid valve, the flow meter and the second temperature sensor are connected in sequence; The flow meter is used to obtain the flow rate of the coolant; The control circuit is also used to acquire the target coolant flow rate sent by the target flow meter, and control the opening degree of the target second solenoid valve based on the target coolant flow rate and the second control signal.

5. The multi-temperature zone coolant switching test system according to claim 1, characterized in that, The control circuit, the first solenoid valve of each water tank unit, the water tank of each water tank unit, the second solenoid valve of each water tank unit, and the inlet of the device under test are connected in sequence; the outlet of the device under test is connected to the water tank of each water tank unit.

6. A method for testing multi-temperature zone coolant switching, characterized in that, The multi-temperature zone coolant switching test system according to any one of claims 1-5, wherein the multi-temperature zone coolant switching test method comprises: The control circuit acquires the first control signal from the host computer and controls the opening degree of the target first solenoid valve based on the first control signal. The target water tank controls the flow of coolant based on the opening degree of the target first solenoid valve; The control circuit acquires the second control signal from the host computer and controls the opening degree of the target second solenoid valve based on the second control signal; wherein, the target water tank, the target first solenoid valve, and the target second solenoid valve belong to the same water tank unit; The target water tank transmits coolant to the device under test based on the opening degree of the target second solenoid valve, thereby controlling the coolant temperature and coolant flow rate.

7. The multi-temperature zone coolant switching test method according to claim 6, characterized in that, The step of the control circuit controlling the opening degree of the target first solenoid valve based on the first control signal includes: The control circuit acquires the target water tank temperature sent by the target first temperature sensor, and controls the opening degree of the target first solenoid valve based on the target water tank temperature and the first control signal.

8. The multi-temperature zone coolant switching test method according to claim 6, characterized in that, The step of the control circuit controlling the opening degree of the target second solenoid valve based on the second control signal includes: The control circuit acquires the target coolant temperature sent by the target second temperature sensor, and controls the opening degree of the target second solenoid valve based on the target coolant temperature and the second control signal.

9. The multi-temperature zone coolant switching test method according to claim 8, characterized in that, The method further includes: The control circuit acquires the target coolant flow rate sent by the target flow meter, and controls the opening degree of the target second solenoid valve based on the target coolant flow rate and the second control signal.

10. The multi-temperature zone coolant switching test method according to claim 6, characterized in that, The method further includes: The control circuit acquires the temperature switching signal sent by the host computer and determines the first water tank corresponding to the coolant temperature of the temperature switching signal. The control circuit sends a shut-off signal to the currently open second solenoid valve to close the currently open second solenoid valve; The control circuit sends an opening signal to the second solenoid valve corresponding to the first water tank to open the second solenoid valve corresponding to the first water tank.

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