Liquid cooling wire harness detection method and device, storage medium and electronic device

Abstract

The application discloses a kind of liquid cooling wire harness detection method, device, storage medium and electronic device, it is related to vehicle technical field.Therein, the method comprises: according to test requirement determines test working condition;In test working condition, obtain first temperature, wherein, first temperature includes the temperature of liquid cooling wire harness, the temperature of environmental chamber and the temperature of electrical connection point, environmental chamber is used to isolate liquid cooling wire harness with external environment, and electrical connection point is the connecting point of environmental chamber and temperature sensor;In response to first temperature greater than or equal to temperature threshold value, adjust cooling parameter, wherein, cooling parameter is used to indicate the flow rate and water temperature of cooling loop;In the preset time period after adjusting cooling parameter, obtain second temperature;According to second temperature, liquid cooling wire harness is detected.The application solves the technical problem that related art tests liquid cooling wire harness by appearance inspection or electrical test, resulting in complex method, not easy to implement, low efficiency, low accuracy, low safety.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more specifically, to a liquid-cooled wiring harness detection method, apparatus, storage medium, and electronic device. Background Technology

[0002] With the rapid development of vehicle technology, the conductor specifications of wiring harnesses in vehicles have increased. Liquid-cooled wiring harnesses, as devices used to cool electronic equipment and wiring harnesses within the vehicle, can absorb and dissipate heat through circulating coolant, thereby maintaining the normal operating temperature of the equipment and wiring harnesses and preventing overheating-induced malfunctions. Therefore, testing methods for liquid-cooled wiring harnesses are extremely important.

[0003] Currently, liquid cooling wiring harnesses are tested through visual inspection or electrical testing. However, these methods require on-site testing and separate resistance, insulation, and short-circuit tests, making them complex, difficult to implement, inefficient, inaccurate, and unsafe.

[0004] There is currently no effective solution to the above problems. Summary of the Invention

[0005] This invention provides a liquid-cooled wiring harness testing method, apparatus, storage medium, and electronic device to at least solve the technical problems of related technologies that test liquid-cooled wiring harnesses through visual inspection or electrical testing, resulting in complex methods that are difficult to implement, have low efficiency, low accuracy, and low safety.

[0006] According to one embodiment of the present invention, a method for detecting liquid-cooled wiring harnesses is provided, comprising: determining test conditions according to test requirements; acquiring a first temperature under the test conditions, wherein the first temperature includes the temperature of the liquid-cooled wiring harness, the temperature of the environmental chamber, and the temperature of the electrical connection point, the environmental chamber being used to isolate the liquid-cooled wiring harness from the external environment, and the electrical connection point being the connection point between the environmental chamber and a temperature sensor; adjusting cooling parameters in response to the first temperature being greater than or equal to a temperature threshold, wherein the cooling parameters are used to represent the flow rate and water temperature of water in the cooling circuit; acquiring a second temperature within a preset time period after adjusting the cooling parameters, wherein the second temperature includes the temperature of the liquid-cooled wiring harness after the cooling parameters are adjusted, the temperature of the environmental chamber, and the temperature of the electrical connection point; and detecting the liquid-cooled wiring harness based on the second temperature.

[0007] Optionally, determining the test conditions according to test requirements includes: determining the target output current, target output voltage, target water flow rate, and target water temperature according to test requirements; controlling the working state of the battery simulator based on the target output current and target output voltage; controlling the working state of the cooling circuit simulator based on the target water flow rate and target water temperature; and determining the test conditions based on the working states of the battery simulator and the cooling circuit simulator.

[0008] Optionally, in response to a first temperature being greater than or equal to a temperature threshold, adjusting the cooling parameters includes: in response to the temperature of the liquid cooling harness being greater than or equal to a first temperature threshold, or the temperature of the ambient chamber being greater than or equal to a second temperature threshold, or the temperature of the electrical connection point being greater than or equal to a third temperature threshold, increasing the flow rate and decreasing the water temperature.

[0009] Optionally, testing the liquid-cooled wiring harness based on the second temperature includes: determining that the liquid-cooled wiring harness is qualified in response to the second temperature being less than a temperature threshold; and determining that the liquid-cooled wiring harness is unqualified and replacing the wiring harness for testing in response to the second temperature being greater than or equal to the temperature threshold.

[0010] Optionally, after confirming that the liquid cooling harness has passed inspection, the method further includes: reducing the flow rate and increasing the water temperature according to a preset method.

[0011] Optionally, the method further includes: obtaining the operating power of the liquid-cooled wiring harness; and in response to the operating power being greater than or equal to a power threshold, determining that the liquid-cooled wiring harness is unqualified and replacing the wiring harness for testing.

[0012] Optionally, after confirming that the liquid cooling wiring harness has passed the test, the method further includes: determining a temperature curve based on the temperature changes of the liquid cooling wiring harness, the ambient temperature, and the electrical connection points under test conditions; and determining a current curve based on the output current changes of the battery simulator under test conditions.

[0013] According to one embodiment of the present invention, a liquid-cooled wiring harness testing device is also provided, comprising: a determining module, configured to determine test conditions according to test requirements; a first acquiring module, configured to acquire a first temperature under the test conditions, wherein the first temperature includes the temperature of the liquid-cooled wiring harness, the temperature of the environmental chamber, and the temperature of the electrical connection point, the environmental chamber being used to isolate the liquid-cooled wiring harness from the external environment, and the electrical connection point being the connection point between the environmental chamber and a temperature sensor; an adjusting module, configured to adjust cooling parameters in response to the first temperature being greater than or equal to a temperature threshold, wherein the cooling parameters represent the flow rate and water temperature of water in the cooling circuit; a second acquiring module, configured to acquire a second temperature within a preset time period after adjusting the cooling parameters, wherein the second temperature includes the temperature of the liquid-cooled wiring harness after the cooling parameters are adjusted, the temperature of the environmental chamber, and the temperature of the electrical connection point; and a detection module, configured to detect the liquid-cooled wiring harness according to the second temperature.

[0014] Optionally, the determining module is also used to determine the target output current, target output voltage, target water flow rate, and target water temperature according to the test requirements; control the working state of the battery simulator based on the target output current and target output voltage; control the working state of the cooling circuit simulator based on the target water flow rate and target water temperature; and determine the test conditions based on the working states of the battery simulator and the cooling circuit simulator.

[0015] Optionally, the adjustment module is also configured to increase the flow rate and decrease the water temperature in response to the temperature of the liquid cooling harness being greater than or equal to a first temperature threshold, or the temperature of the ambient chamber being greater than or equal to a second temperature threshold, or the temperature of the electrical connection point being greater than or equal to a third temperature threshold.

[0016] Optionally, the detection module is also configured to determine that the liquid cooling wiring harness is qualified in response to the second temperature being less than the temperature threshold; and to determine that the liquid cooling wiring harness is unqualified and replace the wiring harness for testing in response to the second temperature being greater than or equal to the temperature threshold.

[0017] Optionally, the detection module is also used to reduce the flow rate and increase the water temperature according to a preset method.

[0018] Optionally, the detection module is also used to obtain the operating power of the liquid-cooled wiring harness; in response to the operating power being greater than or equal to a power threshold, the module determines that the liquid-cooled wiring harness is unqualified and replaces the wiring harness for testing.

[0019] Optionally, the detection module is also used to determine the temperature curve based on the temperature changes of the liquid cooling harness, the ambient temperature, and the electrical connection points under test conditions; and to determine the current curve based on the output current changes of the battery simulator under test conditions.

[0020] According to one embodiment of this application, a vehicle is also provided, which is used to perform the liquid-cooled wiring harness detection method described in any of the above claims.

[0021] According to one embodiment of the present invention, a computer-readable storage medium is also provided, wherein the storage medium stores a computer program, wherein the computer program is configured to execute the liquid-cooled wiring harness detection method described above when run on a computer or processor.

[0022] According to one embodiment of the present invention, an electronic device is also provided, including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the liquid-cooled wire harness detection method of any of the above claims.

[0023] In this embodiment of the invention, test conditions are determined according to test requirements, and a first temperature is obtained under these test conditions. The first temperature includes the temperature of the liquid-cooled wiring harness, the temperature of the environmental chamber, and the temperature of the electrical connection point. The environmental chamber isolates the liquid-cooled wiring harness from the external environment, and the electrical connection point is the connection point between the environmental chamber and the temperature sensor. In response to the first temperature being greater than or equal to a temperature threshold, cooling parameters are adjusted. These cooling parameters represent the flow rate and temperature of the water in the cooling circuit. Within a preset time period after adjusting the cooling parameters, a second temperature is obtained. This second temperature includes the temperature of the liquid-cooled wiring harness after the cooling parameters have been adjusted. The temperature of the environmental chamber and the temperature of the electrical connection points are used to test the liquid-cooled wiring harness. This simulates various operating conditions, performs current-carrying matching tests on the liquid-cooled wiring harness under different conditions, and records and monitors the test results. This reduces the testing cost of current-carrying matching for liquid-cooled wiring harnesses and improves testing efficiency and safety. The method is simple, easy to implement, highly efficient, accurate, and safe. It solves the technical problems of related technologies that test liquid-cooled wiring harnesses through visual inspection or electrical testing, which are complex, difficult to implement, inefficient, inaccurate, and unsafe. Attached Figure Description

[0024] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0025] Figure 1 This is a flowchart of a liquid-cooled wire harness detection method according to one embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of a liquid-cooled wire harness detection system according to one embodiment of the present invention;

[0027] Figure 3 This is a schematic flowchart of a liquid-cooled wire harness detection method according to one embodiment of the present invention;

[0028] Figure 4 This is a schematic flowchart of a liquid-cooled wire harness detection method according to another embodiment of the present invention;

[0029] Figure 5 This is a structural block diagram of a liquid-cooled wire harness detection device according to one embodiment of the present invention. Detailed Implementation

[0030] For ease of understanding, some concepts related to the embodiments of the present invention are explained by way of example for reference.

[0031] As shown below:

[0032] In-vehicle liquid-cooled wiring harnesses refer to the cooling system used inside a car, primarily for cooling electronic equipment and wiring harnesses. They typically consist of a water pump, radiator, coolant piping, and coolant. When electronic equipment and wiring harnesses generate significant heat during operation, the liquid-cooled wiring harness absorbs and dissipates this heat through circulating coolant, maintaining the normal operating temperature of the equipment and wiring harnesses and preventing overheating-related malfunctions. Liquid-cooled wiring harnesses improve the performance and reliability of in-vehicle electronic equipment and offer higher heat dissipation efficiency and lower noise levels compared to traditional air-cooled systems.

[0033] A personal computer (PC) is a computer device used for personal purposes. A PC typically consists of a processor, memory, hard drive, monitor, keyboard, mouse, and other peripherals. Users can use it to perform various tasks, such as browsing the internet, office work, entertainment, and games.

[0034] Vehicle Control Unit (VCU): The process of controlling and managing a vehicle. VCU control involves various aspects of the vehicle, including engine control, brake control, suspension control, and steering control. The VCU communicates with sensors and actuators on the vehicle to monitor its status and take appropriate control strategies as needed to achieve safe and efficient vehicle operation.

[0035] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0036] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0037] According to one embodiment of the present invention, an embodiment of a liquid-cooled wire harness detection method is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0038] This method embodiment can be executed in an electronic device, similar control device, or system that includes a memory and a processor. Taking an electronic device as an example, the electronic device may include one or more processors and a memory for storing data. Optionally, the electronic device may also include a communication device for communication functions and a display device. Those skilled in the art will understand that the above structural description is merely illustrative and does not limit the structure of the electronic device. For example, the electronic device may include more or fewer components than described above, or have a different configuration than described above.

[0039] A processor may include one or more processing units. For example, a processor may include a central processing unit (CPU), a graphics processing unit (GPU), a digital signal processing (DSP) chip, a microcontroller unit (MCU), a field-programmable gate array (FPGA), a neural network processing unit (NPU), a tensor processing unit (TPU), or an artificial intelligence (AI) processor. Different processing units may be independent components or integrated into one or more processors. In some instances, electronic devices may also include one or more processors.

[0040] The memory can be used to store computer programs, such as the computer program corresponding to the liquid-cooled wire harness detection method in this embodiment of the invention. The processor implements the liquid-cooled wire harness detection method by running the computer program stored in the memory. The memory may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory may further include memory remotely located relative to the processor, and these remote memories can be connected to electronic devices via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0041] Communication devices are used to receive or send data via a network. Specific examples of such networks may include wireless networks provided by the mobile terminal's communication provider. In one example, the communication device includes a network interface controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the communication device may be a radio frequency (RF) module used for wireless communication with the Internet.

[0042] The display device can be, for example, a touchscreen liquid crystal display (LCD) and a touch display (also referred to as a "touchscreen" or "touch screen"). This LCD allows the user to interact with the user interface of the mobile terminal. In some embodiments, the mobile terminal has a graphical user interface (GUI), which allows the user to interact with the GUI by touching and / or gesturing on a touch-sensitive surface. Optional human-computer interaction functions include: creating web pages, drawing, word processing, creating electronic documents, playing games, video conferencing, instant messaging, sending and receiving emails, a call interface, playing digital video, playing digital music, and / or web browsing, etc. Executable instructions for performing the above human-computer interaction functions are configured / stored in one or more processor-executable computer program products or readable storage media.

[0043] This embodiment provides a method for detecting liquid-cooled wiring harnesses operating in electronic devices. Figure 1 This is a flowchart of a liquid-cooled wire harness detection method according to one embodiment of the present invention, such as... Figure 1 As shown, the process includes the following steps:

[0044] Step S10: Determine the test conditions based on the test requirements;

[0045] Test requirements can be understood as functional requirements for liquid-cooled wiring harnesses, and test conditions can be understood as environmental conditions for testing liquid-cooled wiring harnesses. It is understandable that in actual applications, the working state of liquid-cooled wiring harnesses will vary depending on the vehicle's operating conditions and the environment in which they are located. Therefore, test conditions need to be determined based on test requirements.

[0046] Optionally, test conditions can be categorized according to the functional requirements of the liquid-cooled wiring harness, and this embodiment of the invention does not impose any limitations. For example, test conditions can be divided into real vehicle conditions and special conditions, etc., according to the functional requirements of the liquid-cooled wiring harness. Real vehicle conditions can be understood as normal operating conditions used to simulate the actual operation of a vehicle, and special conditions can be understood as operating conditions used to simulate the vehicle in a special operating state. This embodiment of the invention does not impose any limitations.

[0047] Step S11: Under test conditions, obtain the first temperature;

[0048] The first temperature includes the temperature of the liquid-cooled wiring harness, the temperature of the ambient chamber, and the temperature of the electrical connection point. The ambient chamber is used to isolate the liquid-cooled wiring harness from the external environment, and the electrical connection point is the connection point between the ambient chamber and the temperature sensor.

[0049] This step can be understood as obtaining the temperature of the liquid-cooled wiring harness, the temperature of the environmental chamber, and the temperature of the electrical connection point under the environmental conditions for testing the liquid-cooled wiring harness. The environmental chamber is used to isolate the liquid-cooled wiring harness from the external environment, and the electrical connection point is the connection point between the environmental chamber and the temperature sensor.

[0050] Optionally, the temperature of the liquid-cooled wiring harness, the temperature of the ambient chamber, and the temperature of the electrical connection points can be obtained by temperature sensors in the testing device; however, this embodiment of the invention is not limited to these parameters.

[0051] Step S12: In response to the first temperature being greater than or equal to the temperature threshold, adjust the cooling parameters;

[0052] Among them, cooling parameters are used to represent the flow rate and water temperature of water in the cooling circuit.

[0053] The temperature threshold can be understood as the maximum temperature at which the liquid cooling harness can work normally to ensure that the test is carried out normally. If the temperature is greater than or equal to the maximum temperature, it means that the temperature of the liquid cooling harness is too high and it cannot work normally, so the temperature needs to be adjusted.

[0054] This step can be understood as follows: when any one of the following conditions is greater than or equal to the maximum temperature that ensures normal testing, it indicates that the temperature of the liquid cooling harness is too high and cannot work properly. At this time, the flow rate and water temperature of the water in the cooling circuit should be adjusted.

[0055] Optionally, the flow rate and temperature of the water in the cooling circuit can be adjusted by regulating the water pump flow rate or controlling the temperature difference between the inlet and outlet water of the cooler. This embodiment of the invention does not impose any limitations on these methods. For example, the water flow rate can be adjusted by regulating the water pump speed or controlling the valve opening. The average water temperature can also be controlled by adjusting the temperature difference between the inlet and outlet water of the cooler. Increasing the temperature difference between the inlet and outlet water can increase the cooling effect, while decreasing the temperature difference can decrease the cooling effect. This embodiment of the invention does not impose any limitations on these methods.

[0056] Step S13: Obtain the second temperature within a preset time period after adjusting the cooling parameters;

[0057] The second temperature includes the temperature of the liquid-cooled wiring harness after the cooling parameters have been adjusted, the temperature of the ambient chamber, and the temperature of the electrical connection points.

[0058] This step can be understood as obtaining the temperature of the liquid cooling harness, the temperature of the ambient chamber, and the temperature of the electrical connection points after the cooling parameters have been adjusted within a preset time period for adjusting the water flow rate and water temperature in the cooling circuit.

[0059] It is understood that when the temperature of the liquid-cooled wiring harness, the temperature of the ambient chamber, and the temperature of the electrical connection point are greater than or equal to the maximum temperature that ensures normal testing, after adjusting the water flow rate and water temperature in the cooling circuit, the temperature of the liquid-cooled wiring harness, the temperature of the ambient chamber, and the temperature of the electrical connection point will decrease. At this time, within a preset time period after adjusting the cooling parameters, the temperature of the liquid-cooled wiring harness, the temperature of the ambient chamber, and the temperature of the electrical connection point are obtained again, so as to determine whether the temperature of the liquid-cooled wiring harness, the temperature of the ambient chamber, and the temperature of the electrical connection point have decreased, and whether the liquid-cooled wiring harness can work normally. This embodiment of the invention does not limit this.

[0060] Step S14: Detect the liquid cooling harness according to the second temperature.

[0061] This step can be understood as testing the liquid cooling harness based on the temperature of the liquid cooling harness after the cooling parameters have been adjusted, the temperature of the ambient chamber, and the temperature of the electrical connection points.

[0062] Optionally, the temperature change curve can be determined by the temperature of the liquid-cooled wiring harness after adjustment based on the cooling parameters, the temperature of the ambient chamber, and the temperature of the electrical connection point. The liquid-cooled wiring harness can be judged to meet the test requirements based on the temperature change curve. This embodiment of the invention does not limit the scope of the invention.

[0063] Figure 2 This is a schematic diagram of a liquid-cooled wire harness detection system according to one embodiment of the present invention. In an optional embodiment, it can be achieved through... Figure 2 The liquid-cooled wire harness detection system in the present invention performs the above steps, and the embodiments of the present invention are not limited thereto.

[0064] like Figure 2 As shown, Figure 2 It includes: a PC, a battery simulator, a cooling circuit simulator, a temperature sensor, and a current acquisition device. The PC uses software to digitally control the battery simulator and the cooling circuit simulator to simulate the required operating conditions and to monitor and record the information of the components under test fed back by the temperature sensor and the current acquisition device in real time.

[0065] The battery simulator is used to simulate the battery's working state and output current and voltage according to the operating conditions. The cooling circuit simulator can control parameters such as cooling circuit flow rate and temperature. The temperature sensor is used to collect the temperature values ​​of each component under test. The current acquisition instrument is used to collect the current values ​​of the components and monitor the working status of the components. The environmental chamber is used to simulate the ambient temperature and isolate the liquid cooling harness from the external environment.

[0066] Figure 2 In operation, the liquid-cooled wiring harness testing system first connects the wiring harness under test to a cooling circuit simulator, a battery simulator, and a VCU. Temperature sensors are connected to the casing, connection points, and other critical locations of the component under test. Then, the corresponding test cases are selected and input into the simulator according to the test conditions determined by the test requirements. After the test starts, the temperature sensors read and record key temperature values ​​and summarize them to the VCU. The VCU receives the expected increase or decrease in current values ​​from the battery simulator. When the temperature of the component under test reaches the temperature threshold, the VCU adjusts the cooling circuit parameters. If the temperature of the component under test decreases after adjustment, the VCU adjusts the cooling circuit parameters according to the minimum cooling circuit efficiency. Finally, the PC reads and records the temperature values ​​and current information, and plots the temperature rise curve and current curve to complete the testing of the liquid-cooled wiring harness. This embodiment of the invention is not limited in scope.

[0067] Through the above steps, the test conditions are determined according to the test requirements, and a first temperature is obtained under the test conditions. The first temperature includes the temperature of the liquid-cooled wiring harness, the temperature of the ambient chamber, and the temperature of the electrical connection point. The ambient chamber isolates the liquid-cooled wiring harness from the external environment, and the electrical connection point is the connection point between the ambient chamber and the temperature sensor. In response to the first temperature being greater than or equal to a temperature threshold, the cooling parameters are adjusted. These cooling parameters represent the water flow rate and water temperature in the cooling circuit. Within a preset time period after adjusting the cooling parameters, a second temperature is obtained. The second temperature includes the temperature of the liquid-cooled wiring harness after the cooling parameters are adjusted, the ambient temperature, and the temperature of the ambient chamber. The temperature of the enclosure and the temperature of the electrical connection points are used to test the liquid-cooled wiring harness. This simulates various operating conditions, performs current-carrying matching tests on the liquid-cooled wiring harness under different conditions, and records and monitors the test results. This reduces the testing cost of current-carrying matching for liquid-cooled wiring harnesses and improves testing efficiency and safety. The method is simple, easy to implement, highly efficient, accurate, and safe. It solves the technical problems of related technologies that test liquid-cooled wiring harnesses through visual inspection or electrical testing, which are complex, difficult to implement, inefficient, inaccurate, and unsafe.

[0068] Optionally, in step S10, determining the test conditions according to the test requirements may include the following execution steps:

[0069] Step S100: Determine the target output current, target output voltage, target water flow rate, and target water temperature according to the test requirements;

[0070] The target output current can be understood as the output current required for the simulated test conditions, the target output voltage can be understood as the output voltage required for the simulated test conditions, the target water flow rate can be understood as the water flow rate required for the simulated test conditions, and the target water temperature can be understood as the water temperature required for the simulated test conditions. This step can be understood as determining the required output current, output voltage, water flow rate, and water temperature for the simulated test conditions based on the functional requirements of the liquid cooling harness.

[0071] Optionally, this step can be performed as described above. Figure 2 The liquid-cooled wire harness testing system described above is used to implement this, and the embodiments of the present invention are not limited thereto. For example, the output current, output voltage, water flow rate, and water temperature required for the simulated test conditions can be determined by the PC in the liquid-cooled wire harness testing system according to the functional requirements of the liquid-cooled wire harness; that is, the target output current, target output voltage, target water flow rate, and target water temperature can be determined. The embodiments of the present invention are not limited thereto.

[0072] Step S101: Control the working state of the battery simulator based on the target output current and target output voltage;

[0073] This step can be understood as controlling the working state of the battery simulator based on the output current and output voltage required for the simulated test conditions.

[0074] Optionally, this step can be performed as described above. Figure 2 The liquid-cooled wiring harness testing system described above is used to implement this, and the embodiments of the present invention are not limited thereto. For example, the battery simulator in the liquid-cooled wiring harness testing system can simulate the battery's operating state according to the output current and output voltage required for the simulated test conditions; the embodiments of the present invention are not limited thereto.

[0075] Step S102: Control the working state of the cooling circuit simulator based on the target water flow rate and target water temperature;

[0076] This step can be understood as controlling the working state of the cooling circuit simulator based on the water flow rate and water temperature required for the simulated test conditions.

[0077] Optionally, this step can be performed as described above. Figure 2The liquid-cooled wiring harness testing system described above is used to implement this, and the embodiments of the present invention are not limited thereto. For example, the working state of the cooling circuit can be simulated using a cooling circuit simulator within the aforementioned liquid-cooled wiring harness testing system according to the water flow rate and water temperature required for the simulated test conditions; the embodiments of the present invention are not limited thereto.

[0078] Step S103: Determine the test conditions based on the working states of the battery simulator and the cooling circuit simulator.

[0079] This step can be understood as determining the environmental conditions for testing the liquid-cooled wiring harness based on the operating states of the battery simulator and the cooling circuit simulator.

[0080] Optionally, this step can be performed as described above. Figure 2 The liquid-cooled wiring harness testing system described above is used for implementation, and this embodiment of the invention is not limited thereto. For example, the operating conditions for testing the liquid-cooled wiring harness can be determined by the operating states of the battery simulator and the cooling circuit simulator in the aforementioned liquid-cooled wiring harness testing system, and this embodiment of the invention is not limited thereto.

[0081] Optionally, in step S12, adjusting the cooling parameters in response to a first temperature being greater than or equal to a temperature threshold may include the following steps:

[0082] In step S120, in response to the temperature of the liquid cooling harness in the first temperature being greater than or equal to the first temperature threshold, or the temperature of the ambient chamber being greater than or equal to the second temperature threshold, or the temperature of the electrical connection point being greater than or equal to the third temperature threshold, the flow rate is increased and the water temperature is decreased.

[0083] The first temperature threshold can be understood as the maximum temperature at which the liquid cooling harness can work normally to ensure that the test is carried out normally. When the temperature of the liquid cooling harness is greater than or equal to this maximum temperature, it means that the temperature of the liquid cooling harness is too high and it cannot work normally, and its temperature needs to be adjusted.

[0084] The second temperature threshold can be understood as the maximum temperature at which the environmental chamber can work normally to ensure that the test is carried out normally. When the temperature of the environmental chamber is greater than or equal to this maximum temperature, it means that the temperature of the environmental chamber is too high and it cannot work normally, and its temperature needs to be adjusted.

[0085] The third temperature threshold can be understood as the maximum temperature at which the electrical connection point can work normally to ensure that the test is carried out normally. When the temperature of the electrical connection point is greater than or equal to this maximum temperature, it means that the temperature of the electrical connection point is too high and it cannot work normally, and its temperature needs to be adjusted.

[0086] This step can be understood as follows: when the temperature of the liquid cooling harness is greater than or equal to the maximum temperature at which the liquid cooling harness can work normally, or the temperature of the ambient chamber is greater than or equal to the maximum temperature at which the ambient chamber can work normally, or the temperature of the electrical connection point is greater than or equal to the maximum temperature at which the electrical connection point can work normally, it indicates that the temperature of the liquid cooling harness is too high and cannot work normally, or the temperature of the ambient chamber is too high and cannot work normally, or the temperature of the electrical connection point is too high and cannot work normally, the flow rate is increased and the water temperature is lowered.

[0087] Optionally, the flow rate and temperature of the water in the cooling circuit can be adjusted by regulating the water pump flow rate or controlling the temperature difference between the inlet and outlet water of the cooler; this embodiment of the invention is not limited to these methods. For example, the water flow rate can be increased by increasing the water pump speed or increasing the valve opening. The average water temperature can also be controlled by adjusting the temperature difference between the inlet and outlet water of the cooler; increasing the temperature difference enhances the cooling effect, and this embodiment of the invention is not limited to these methods.

[0088] Optionally, in step S14, detecting the liquid-cooled wiring harness based on the second temperature may include the following steps:

[0089] Step S140: In response to the second temperature being less than the temperature threshold, the liquid cooling harness is determined to be qualified for testing;

[0090] This step can be understood as follows: when the temperature of the liquid cooling harness, the temperature of the ambient chamber, and the temperature of the electrical connection point after the cooling parameters are adjusted are all less than the maximum temperature threshold that can ensure the normal operation of the three, it means that the temperature of the liquid cooling harness, the temperature of the ambient chamber, and the temperature of the electrical connection point are all reasonable and the three can work normally. At this time, it is determined that the liquid cooling harness has passed the test.

[0091] Step S141: In response to the second temperature being greater than or equal to the temperature threshold, determine that the liquid cooling harness is unqualified and replace the harness for testing.

[0092] This step can be understood as follows: if the temperature of the liquid cooling harness, the ambient chamber temperature, and the electrical connection point after the cooling parameters are adjusted are still greater than or equal to the maximum temperature threshold for normal operation, it means that one of these three temperatures is still too high and cannot guarantee normal operation. This indicates that adjusting the parameters has not solved the problem of excessive temperature and the harness still cannot work properly. At this point, the liquid cooling harness is determined to be unqualified and the harness is replaced for testing.

[0093] Optionally, in step S14, after confirming that the liquid cooling wiring harness has passed the inspection, the following steps may also be included:

[0094] Step S142: Reduce the flow rate and increase the water temperature according to a preset method.

[0095] The preset method can be understood as reducing the water flow rate and increasing the water temperature. Optionally, the flow rate and temperature of the water in the cooling circuit can be adjusted by regulating the water pump flow rate or controlling the temperature difference between the inlet and outlet water of the cooler. This embodiment of the invention is not limited to these methods. For example, the water flow rate can be adjusted by regulating the speed of the water pump or controlling the opening of the valve. The average water temperature can also be controlled by adjusting the temperature difference between the inlet and outlet water of the cooler. Increasing the temperature difference between the inlet and outlet water can increase the cooling effect, while decreasing the temperature difference can decrease the cooling effect. This embodiment of the invention is not limited to these methods.

[0096] Figure 3 This is a schematic flowchart of a liquid-cooled wiring harness detection method according to one embodiment of the present invention, as shown below. Figure 3 The diagram illustrates the specific implementation process of the above steps. Figure 3 The liquid-cooled wiring harness testing method in the test process involves the following steps: After the test is initiated, the test conditions are first determined based on the test requirements. Either a real vehicle condition or a special condition is selected for testing the liquid-cooled wiring harness. The battery simulator outputs the test conditions, and the cooling circuit operates at the lowest power to drive the wiring harness under test. Temperature data is read by a temperature sensor and analyzed by the VCU. If the temperature reaches a threshold, the parameters of the cooling circuit are adjusted. After a certain period, the temperature is checked again to see if it reaches the threshold. If it still exceeds the temperature threshold, the wiring harness is replaced. If it does not exceed the temperature threshold, the liquid-cooled wiring harness is considered to have passed the test, and the temperature and current curves are recorded on a PC.

[0097] Optionally, step S14 may also include the following execution steps:

[0098] Step S143: Obtain the operating power of the liquid cooling harness;

[0099] It is understandable that liquid-cooled wiring harnesses have driving power during operation. If the power is too high, it will also force its normal operation. Therefore, the operating power of the liquid-cooled wiring harness is obtained.

[0100] Step S144: In response to the operating power being greater than or equal to the power threshold, determine that the liquid cooling harness is unqualified and replace the harness for testing.

[0101] The power threshold can be understood as the maximum power threshold that ensures the test can proceed normally and the liquid cooling harness can work properly. When the power of the liquid cooling harness is greater than or equal to this maximum power threshold, it means that the power of the liquid cooling harness is too high and it cannot work properly.

[0102] This step can be understood as follows: when the operating power is greater than or equal to the maximum power threshold that the liquid cooling harness can work normally, it means that the power of the liquid cooling harness is too high and it cannot work normally. At this time, it is determined that the liquid cooling harness is unqualified and the harness is replaced for testing.

[0103] Figure 4 This is a schematic flowchart of a liquid-cooled wire harness detection method according to another embodiment of the present invention, as shown below. Figure 4 The diagram illustrates the specific implementation process of the above steps. Figure 4 The liquid-cooled wiring harness testing method in the test process involves the following steps: After the test is initiated, the test conditions are first determined based on the test requirements. Either a real vehicle condition or a special condition is selected for testing the liquid-cooled wiring harness. The battery simulator outputs the test conditions, and the cooling circuit operates at the lowest power to drive the wiring harness under test. Temperature data is read by a temperature sensor and analyzed by the VCU. If the temperature reaches a threshold, the parameters of the cooling circuit are adjusted. After a certain period, the temperature is checked again to see if it reaches the threshold. If it still exceeds the temperature threshold, the wiring harness is replaced. If it does not exceed the temperature threshold, the power of the cooling circuit is read by the PC to determine if the power is too high. If the power is too high, the liquid-cooled wiring harness is deemed unqualified and replaced for testing. When both the temperature and the cooling circuit power are within the threshold, the liquid-cooled wiring harness is deemed qualified, and the temperature and current curves are recorded by the PC.

[0104] Optionally, in step S14, after confirming that the liquid cooling wiring harness has passed the inspection, the following steps may also be included:

[0105] Step S145: Determine the temperature curve based on the temperature changes of the liquid-cooled wiring harness, the ambient temperature, and the electrical connection points under the test conditions.

[0106] This step can be understood as, after confirming that the liquid-cooled wiring harness has passed inspection, determining the temperature profile based on the temperature changes of the liquid-cooled wiring harness, the ambient chamber temperature changes, and the electrical connection points under test conditions. Optionally, this step can be achieved through the above... Figure 2 The liquid-cooled wiring harness testing system described above is used for implementation, and the embodiments of the present invention are not limited thereto. For example, the temperature changes of the liquid-cooled wiring harness, the temperature changes of the ambient chamber, and the temperature changes of the electrical connection points under test conditions can be read by a PC in the above-described liquid-cooled wiring harness testing system, and temperature curves can be plotted accordingly. The embodiments of the present invention are not limited thereto.

[0107] Step S146: Determine the current curve based on the output current change of the battery simulator under test conditions.

[0108] This step can be understood as determining the current curve based on the output current changes of the battery simulator under test conditions after confirming that the liquid cooling wiring harness has passed inspection. Optionally, this step can be achieved through the above... Figure 2 The liquid-cooled wiring harness detection system described above is used for implementation, and this embodiment of the invention is not limited thereto. For example, the output current change of the battery simulator under test conditions can be read by a PC in the liquid-cooled wiring harness detection system, and a current curve can be plotted accordingly; this embodiment of the invention is not limited thereto.

[0109] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0110] This embodiment also provides a liquid-cooled wire harness detection device, which is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that performs a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0111] Figure 5 This is a structural block diagram of a liquid-cooled wire harness detection device according to one embodiment of the present invention, such as... Figure 5 As shown, a liquid-cooled wiring harness testing device 500 is used as an example. This device includes: a determination module 501, used to determine test conditions according to test requirements; a first acquisition module 502, used to acquire a first temperature under the test conditions, wherein the first temperature includes the temperature of the liquid-cooled wiring harness, the temperature of the environmental chamber, and the temperature of the electrical connection point, the environmental chamber is used to isolate the liquid-cooled wiring harness from the external environment, and the electrical connection point is the connection point between the environmental chamber and the temperature sensor; an adjustment module 503, used to adjust cooling parameters in response to the first temperature being greater than or equal to a temperature threshold, wherein the cooling parameters represent the flow rate and water temperature of the water in the cooling circuit; a second acquisition module 504, used to acquire a second temperature within a preset time period after adjusting the cooling parameters, wherein the second temperature includes the temperature of the liquid-cooled wiring harness after the cooling parameters are adjusted, the temperature of the environmental chamber, and the temperature of the electrical connection point; and a detection module 505, used to detect the liquid-cooled wiring harness based on the second temperature.

[0112] Optionally, the determining module 501 is also used to determine the target output current, target output voltage, target water flow rate, and target water temperature according to the test requirements; control the working state of the battery simulator based on the target output current and target output voltage; control the working state of the cooling circuit simulator based on the target water flow rate and target water temperature; and determine the test conditions based on the working states of the battery simulator and the cooling circuit simulator.

[0113] Optionally, the adjustment module 503 is also configured to increase the flow rate and decrease the water temperature in response to the temperature of the liquid cooling harness being greater than or equal to a first temperature threshold, or the temperature of the ambient chamber being greater than or equal to a second temperature threshold, or the temperature of the electrical connection point being greater than or equal to a third temperature threshold.

[0114] Optionally, the detection module 505 is further configured to determine that the liquid cooling wiring harness is qualified in response to the second temperature being less than the temperature threshold; and to determine that the liquid cooling wiring harness is unqualified and replace the wiring harness for testing in response to the second temperature being greater than or equal to the temperature threshold.

[0115] Optionally, the detection module 505 is also used to reduce the flow rate and increase the water temperature according to a preset method.

[0116] Optionally, the detection module 505 is also used to obtain the operating power of the liquid-cooled wiring harness; in response to the operating power being greater than or equal to a power threshold, it determines that the liquid-cooled wiring harness is unqualified and replaces the wiring harness for detection.

[0117] Optionally, the detection module 505 is also used to determine the temperature curve based on the temperature changes of the liquid cooling harness, the ambient temperature, and the electrical connection point under the test conditions; and to determine the current curve based on the output current changes of the battery simulator under the test conditions.

[0118] It should be noted that the above modules can be implemented by software or hardware. For the latter, they can be implemented in the following ways, but are not limited to: all the above modules are located in the same processor; or, the above modules are located in different processors in any combination.

[0119] Embodiments of this application also provide a vehicle for performing the steps in any of the above method embodiments.

[0120] Optionally, in this embodiment, the vehicle may be configured to store a computer program for performing the following steps:

[0121] Step S1: Determine the test conditions based on the test requirements;

[0122] Step S2: Under test conditions, obtain the first temperature;

[0123] Step S3: In response to the first temperature being greater than or equal to the temperature threshold, adjust the cooling parameters;

[0124] Step S4: Obtain the second temperature within a preset time period after adjusting the cooling parameters;

[0125] Step S5: Detect the liquid cooling harness according to the second temperature.

[0126] Embodiments of the present invention also provide a computer-readable storage medium storing a computer program, wherein the computer program is configured to perform the steps in any of the above method embodiments when run on a computer or processor.

[0127] Optionally, in this embodiment, the computer-readable storage medium may be configured to store a computer program for performing the following steps:

[0128] Step S1: Determine the test conditions based on the test requirements;

[0129] Step S2: Under test conditions, obtain the first temperature;

[0130] Step S3: In response to the first temperature being greater than or equal to the temperature threshold, adjust the cooling parameters;

[0131] Step S4: Obtain the second temperature within a preset time period after adjusting the cooling parameters;

[0132] Step S5: Detect the liquid cooling harness according to the second temperature.

[0133] Optionally, in this embodiment, the computer-readable storage medium may include, but is not limited to, various media capable of storing computer programs, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0134] Embodiments of the present invention also provide an electronic device including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0135] Optionally, in this embodiment, the processor in the above-described electronic device may be configured to run a computer program to perform the following steps:

[0136] Step S1: Determine the test conditions based on the test requirements;

[0137] Step S2: Under test conditions, obtain the first temperature;

[0138] Step S3: In response to the first temperature being greater than or equal to the temperature threshold, adjust the cooling parameters;

[0139] Step S4: Obtain the second temperature within a preset time period after adjusting the cooling parameters;

[0140] Step S5: Detect the liquid cooling harness according to the second temperature.

[0141] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementations, and will not be repeated here.

[0142] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0143] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0144] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0145] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0146] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0147] If the integrated unit is implemented as 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 technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part 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 the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0148] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for detecting liquid-cooled wire harnesses, characterized in that, include: Determine the test conditions based on the test requirements; Under the test conditions, a first temperature is obtained, wherein the first temperature includes the temperature of the liquid-cooled wiring harness, the temperature of the environmental chamber, and the temperature of the electrical connection point. The environmental chamber is used to isolate the liquid-cooled wiring harness from the external environment, and the electrical connection point is the connection point between the environmental chamber and the temperature sensor. In response to the first temperature being greater than or equal to a temperature threshold, cooling parameters are adjusted, wherein the cooling parameters are used to represent the flow rate and water temperature of the water in the cooling circuit; Within a preset time period after adjusting the cooling parameters, a second temperature is obtained, wherein the second temperature includes the temperature of the liquid cooling harness after the cooling parameters are adjusted, the temperature of the ambient chamber, and the temperature of the electrical connection point; In response to the second temperature being lower than the temperature threshold, the liquid cooling harness is determined to be qualified for testing. In response to the second temperature being greater than or equal to the temperature threshold, the liquid cooling harness is determined to be unqualified and the harness is replaced for testing. The adjustment of cooling parameters in response to the first temperature being greater than or equal to a temperature threshold includes: increasing the flow rate and decreasing the water temperature in response to the first temperature being greater than or equal to the first temperature threshold, or the temperature of the environmental chamber being greater than or equal to the second temperature threshold, or the temperature of the electrical connection point being greater than or equal to the third temperature threshold. After determining that the liquid cooling harness has passed the inspection, the method further includes: reducing the flow rate and increasing the water temperature according to a preset method.

2. The method according to claim 1, characterized in that, Determining test conditions based on test requirements includes: Determine the target output current, target output voltage, target water flow rate, and target water temperature based on the aforementioned test requirements; The operating state of the battery simulator is controlled based on the target output current and the target output voltage. The operating state of the cooling circuit simulator is controlled based on the target water flow rate and the target water temperature. The test conditions are determined based on the operating states of the battery simulator and the cooling circuit simulator.

3. The method according to claim 1 or 2, characterized in that, Also includes: Obtain the operating power of the liquid-cooled wiring harness; In response to the operating power being greater than or equal to a power threshold, the liquid cooling harness is determined to be unqualified and the harness is replaced for testing.

4. The method according to claim 1, characterized in that, After confirming that the liquid-cooled wiring harness has passed inspection, the process further includes: The temperature curve is determined based on the temperature changes of the liquid-cooled wiring harness, the ambient chamber, and the electrical connection point under the test conditions. The current curve is determined based on the output current variation of the battery simulator under the test conditions.

5. A liquid-cooled wire harness testing device, characterized in that, include: A determination module, which is used to determine the test conditions according to the test requirements; The first acquisition module is used to acquire a first temperature under the test conditions. The first temperature includes the temperature of the liquid cooling harness, the temperature of the environmental chamber, and the temperature of the electrical connection point. The environmental chamber is used to isolate the liquid cooling harness from the external environment, and the electrical connection point is the connection point between the environmental chamber and the temperature sensor. An adjustment module is used to adjust cooling parameters in response to the first temperature being greater than or equal to a temperature threshold, wherein the cooling parameters represent the flow rate and water temperature of the water in the cooling circuit. The second acquisition module is used to acquire a second temperature within a preset time period after adjusting the cooling parameters, wherein the second temperature includes the temperature of the liquid cooling harness after the cooling parameters are adjusted, the temperature of the ambient chamber, and the temperature of the electrical connection point; The detection module is configured to determine that the liquid cooling wiring harness is qualified when the second temperature is less than the temperature threshold, and to determine that the liquid cooling wiring harness is unqualified and replace the wiring harness for testing when the second temperature is greater than or equal to the temperature threshold. The first acquisition module is further configured to increase the flow rate and decrease the water temperature in response to the following: the temperature of the liquid cooling harness is greater than or equal to a first temperature threshold, or the temperature of the environmental chamber is greater than or equal to a second temperature threshold, or the temperature of the electrical connection point is greater than or equal to a third temperature threshold. The detection module is also used to reduce the flow rate and increase the water temperature according to a preset method.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, wherein the computer program is configured to execute the liquid-cooled wire harness detection method according to any one of claims 1 to 4 when run on a computer or processor.

7. An electronic device comprising a memory and a processor, characterized in that, The memory stores a computer program, and the processor is configured to run the computer program to perform the liquid-cooled wire harness detection method according to any one of claims 1 to 4.

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