Electromagnetic compatibility radiation anti-interference test method and device for active air intake grille

Abstract

The present application relates to an electromagnetic compatibility radiation anti-interference test method, device, computer equipment and storage medium for an active air intake grille, which obtains the working state of the active air intake grille; when the working state of the active air intake grille meets the preset state, the actual opening and closing angle of the active air intake grille is compared with the preset angle to determine the communication state of the control signal line; when the communication state of the control signal line is normal communication, an interference signal is emitted, and the communication state of the control signal line and the response state of the passive actuator to the control command issued through the control signal line are obtained in real time; according to the communication state and the response state, the anti-interference level of the active air intake grille is determined. The anti-interference test of the active air intake grille system is realized through an electromagnetic compatibility darkroom, and the parameters of the active air intake grille system at the time of interference can be obtained more accurately through the communication state of the control signal line, so as to analyze the anti-interference.

Description

Technical Field

[0001] The present application relates to the technical field of anti-interference testing, and in particular to a method, device, computer equipment, storage medium and computer program product for testing the electromagnetic compatibility radiation anti-interference of an active air intake grille. Background Art

[0002] The active grille is controlled by the Electronic Control Unit (ECU). When the engine is initially started and the temperature is low, there's no significant cooling demand, so the ECU closes the grille to insulate the engine. When the engine operating temperature rises above the ideal temperature, the ECU opens the grille to introduce cool air to assist in cooling. The ECU determines the timing of opening and closing based on the engine's coolant temperature, oil temperature, ambient temperature, and vehicle speed. Furthermore, closing the active grille at high speeds reduces the combined resistance of cabin and underbody airflow, lowering wind resistance. Overall, active grilles can reduce fuel consumption by reducing wind resistance or accelerating engine warm-up, leading to their increasing adoption in vehicles. However, the complex electromagnetic environment outside the cab while the vehicle is in motion can interfere with the active grille's control circuitry, causing it to malfunction. Summary of the Invention

[0003] Based on this, it is necessary to provide an accurate and efficient electromagnetic compatibility radiation anti-interference testing method, device, computer equipment, computer-readable storage medium and computer program product for the active air intake grille to address the above technical problems.

[0004] In a first aspect, the present application provides a method for testing the electromagnetic compatibility radiation interference resistance of an active air intake grille, which is applied to testing a vehicle's active air intake grille system in an electromagnetic compatibility darkroom; the vehicle's active air intake grille system includes an active air intake grille and a passive actuator. The method includes:

[0005] Turn on the active air intake grille system and obtain the working status of the active air intake grille, which is used to indicate the degree of opening and closing of the active air intake grille;

[0006] When the working state of the active air intake grille meets the preset state, the actual opening and closing angle of the active air intake grille is compared with the preset angle to determine the communication state of the control signal line of the active air intake grille system;

[0007] When the communication status of the control signal line indicates normal communication, transmitting an interference signal to the active air intake grille system to obtain in real time the communication status of the control signal line and the response status of the passive actuator to the control command issued via the control signal line;

[0008] The anti-interference level of the active air intake grille is determined based on the communication status and response status.

[0009] In one embodiment, the preset state is a first state or a second state, the first state is used to indicate that the active air intake grille is fully opened, and the second state is used to indicate that the active air intake grille is fully closed.

[0010] In one embodiment, comparing the actual opening and closing angle of the active air intake grille with a preset angle to determine the communication status of a control signal line of the active air intake grille system includes:

[0011] Setting the opening and closing angles of the active air intake grille to multiple preset angles, and obtaining the actual opening and closing angle corresponding to each preset angle of the active air intake grille;

[0012] For any preset angle, calculate the difference between any preset angle and the corresponding actual opening and closing angle, and when the difference is less than a preset threshold, determine that the communication execution result corresponding to any preset angle is normal;

[0013] In a case where the communication execution results corresponding to the plurality of preset angles meet preset conditions, it is determined that the communication state of the control signal line of the active air intake grille system indicates normal communication.

[0014] In one embodiment, an interference signal source is provided outside the electromagnetic compatibility chamber, a radiation antenna is provided inside the electromagnetic compatibility chamber, and the interference signal source and the radiation antenna are connected via an anti-interference signal transmission cable; accordingly, transmitting an interference signal to the active air intake grille system includes:

[0015] The initial interference signal is transmitted to the signal amplifier through the interference signal source, and the signal amplifier amplifies the initial interference signal and transmits it to the radiation antenna.

[0016] In one embodiment, determining the anti-interference level of the active air intake grille based on the communication state and the response state includes:

[0017] When the communication status indicates abnormal communication or the response status indicates that the actuator does not respond, parameters of the interference signal emitted by the radiation antenna are obtained, the parameters are compared with parameter thresholds, and the anti-interference level of the active air intake grille is determined.

[0018] In one embodiment, the parameters include a signal frequency band and a field strength value; accordingly, comparing the parameters with a parameter threshold to determine the anti-interference level of the active air intake grille includes:

[0019] When the signal frequency band meets the preset frequency band and the field strength value meets the preset field strength value range, the anti-interference level of the active air intake grille is determined to be the first strength level;

[0020] When the signal frequency band meets the preset frequency band or the field strength value meets the preset field strength value range, the anti-interference level of the active air intake grille is determined to be the second intensity level;

[0021] If the signal frequency band does not conform to the preset frequency band and the field strength value does not meet the preset field strength value range, the anti-interference level of the active air intake grille is determined to be the third intensity level;

[0022] The first intensity level indicates a higher degree of anti-interference than the second intensity level, and the second intensity level indicates a higher degree of anti-interference than the third intensity level.

[0023] In a second aspect, the present application also provides an electromagnetic compatibility radiation interference resistance test device for an active air intake grille. The device is used to test a vehicle's active air intake grille system in an electromagnetic compatibility darkroom; the vehicle's active air intake grille system includes an active air intake grille and a passive actuator, and the device includes:

[0024] A first acquisition module is used to activate the active air intake grille system and acquire the working status of the active air intake grille, where the working status is used to indicate the degree of opening and closing of the active air intake grille;

[0025] a first determining module, configured to compare an actual opening and closing angle of the active air intake grille with a preset angle when the operating state of the active air intake grille conforms to a preset state, and determine a communication state of a control signal line of the active air intake grille system;

[0026] a second acquisition module, configured to, when the communication state of the control signal line indicates normal communication, transmit an interference signal to the active air intake grille system, and acquire in real time the communication state of the control signal line and the response state of the passive actuator to the control instruction issued via the control signal line;

[0027] The second determination module is configured to determine an anti-interference level of the active air intake grille according to the communication state and the response state.

[0028] In a third aspect, the present application further provides a computer device. The computer device includes a memory and a processor. The memory stores a computer program. When the processor executes the computer program, the following steps are performed:

[0029] Turn on the active air intake grille system and obtain the working status of the active air intake grille, which is used to indicate the degree of opening and closing of the active air intake grille;

[0030] When the working state of the active air intake grille meets the preset state, the actual opening and closing angle of the active air intake grille is compared with the preset angle to determine the communication state of the control signal line of the active air intake grille system;

[0031] When the communication status of the control signal line indicates normal communication, transmitting an interference signal to the active air intake grille system to obtain in real time the communication status of the control signal line and the response status of the passive actuator to the control command issued via the control signal line;

[0032] The anti-interference level of the active air intake grille is determined based on the communication status and response status.

[0033] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the following steps:

[0034] Turn on the active air intake grille system and obtain the working status of the active air intake grille, which is used to indicate the degree of opening and closing of the active air intake grille;

[0035] When the working state of the active air intake grille meets the preset state, the actual opening and closing angle of the active air intake grille is compared with the preset angle to determine the communication state of the control signal line of the active air intake grille system;

[0036] When the communication status of the control signal line indicates normal communication, transmitting an interference signal to the active air intake grille system to obtain in real time the communication status of the control signal line and the response status of the passive actuator to the control command issued via the control signal line;

[0037] The anti-interference level of the active air intake grille is determined based on the communication status and response status.

[0038] In a fifth aspect, the present application further provides a computer program product. The computer program product includes a computer program that, when executed by a processor, implements the following steps:

[0039] Turn on the active air intake grille system and obtain the working status of the active air intake grille, which is used to indicate the degree of opening and closing of the active air intake grille;

[0040] When the working state of the active air intake grille meets the preset state, the actual opening and closing angle of the active air intake grille is compared with the preset angle to determine the communication state of the control signal line of the active air intake grille system;

[0041] When the communication status of the control signal line indicates normal communication, transmitting an interference signal to the active air intake grille system to obtain in real time the communication status of the control signal line and the response status of the passive actuator to the control command issued via the control signal line;

[0042] The anti-interference level of the active air intake grille is determined based on the communication status and response status.

[0043] The above-mentioned electromagnetic compatibility radiation interference immunity testing method, apparatus, computer equipment, storage medium, and computer program product for an active air intake grille activate the active air intake grille system and obtain the operating status of the active air intake grille, which indicates the degree of opening or closing of the active air intake grille. When the operating status of the active air intake grille meets a preset state, the actual opening or closing angle of the active air intake grille is compared with the preset angle to determine the communication status of the control signal line of the active air intake grille system. When the communication status of the control signal line indicates normal communication, an interference signal is transmitted to the active air intake grille system to obtain the communication status of the control signal line and the response status of the passive actuator to the control command issued via the control signal line in real time. The interference immunity level of the active air intake grille is determined based on the communication status and response status. By transmitting an interference signal to the active air intake grille system in an electromagnetic compatibility darkroom, the overall operating status of the active air intake grille system is monitored in real time and its interference immunity is tested. In addition, the communication status test of the control signal line of the active air intake grille system before the interference immunity test is added. This allows for more accurate acquisition of the parameters of the active air intake grille system at the moment of interference, thereby enabling analysis of the interference immunity. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 A diagram illustrating an application environment of a method for testing the electromagnetic compatibility radiation immunity of an active air intake grille in one embodiment;

[0045] Figure 2 1 is a flow chart of a method for testing the electromagnetic compatibility radiation immunity of an active air intake grille in one embodiment;

[0046] Figure 3 A schematic flow chart of a method for testing the electromagnetic compatibility radiation immunity of an active air intake grille in another embodiment;

[0047] Figure 4 Schematic diagram of a flow chart of a method for testing the electromagnetic compatibility radiation immunity of an active air intake grille in yet another embodiment;

[0048] Figure 5 This is a structural block diagram of a device for testing the electromagnetic compatibility, radiation immunity, and interference resistance of an active air intake grille according to an embodiment;

[0049] Figure 6 FIG. 1 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0051] The active grille is controlled by the Electronic Control Unit (ECU). When the engine is initially started and the temperature is low, there's no significant cooling demand, so the ECU closes the grille to insulate the engine. When the engine operating temperature rises above the ideal temperature, the ECU opens the grille to introduce cool air to assist in cooling. The ECU determines the timing of opening and closing based on the engine's coolant temperature, oil temperature, ambient temperature, and vehicle speed. Furthermore, closing the active grille at high speeds reduces the combined resistance of cabin and underbody airflow, lowering wind resistance. Overall, active grilles can reduce fuel consumption by reducing wind resistance or accelerating engine warm-up, leading to their increasing adoption in vehicles. However, the complex electromagnetic environment outside the cab while the vehicle is in motion can interfere with the active grille's control circuitry, causing it to malfunction.

[0052] The electromagnetic compatibility radiation anti-interference test method of the active air intake grille provided in the embodiment of the present application can be applied to Figure 1 In the application environment shown, 1 is an EMC anechoic chamber, used to place the active air intake grille system to be tested; 2 is a radiating antenna, used to radiate interference signals; 3 is the active grille system, including a control unit and passive actuators; 4 is a low-voltage LISN (Line Impedance Stabilization Network), used to measure conducted interference and convert the detected conducted interference from noise current to noise voltage for measurement; 5 is the active air intake grille wiring harness, used to connect to the LISN; 6 is an optical fiber, used to connect the active air intake grille system in the EMC anechoic chamber to the host computer; 7 is a test table grounding copper plate; 8 is an external power supply cable; 9 is a LIN bus signal optical converter (Local Interconnect Network); 10 is a test table; 11 is a fiber optic wall connector; 12 is a low-voltage power filter; 13 is a low-voltage power supply; 14 is a monitoring host computer; 15 is a power amplifier; 16 is an interference signal source; and 17 is an interference signal transmission cable.

[0053] In one embodiment, Figure 2 As shown, a method for testing the electromagnetic compatibility radiation immunity of an active air intake grille is provided. The method is described using a server as an example, and includes the following steps:

[0054] Step 202: Start the active air intake grille system and obtain the working status of the active air intake grille, where the working status indicates the degree of opening or closing of the active air intake grille.

[0055] The active grille system includes the active grille, its control circuit, and a passive actuator. The active grille is a mechanical structure on the vehicle's exterior that dissipates engine heat, similar in appearance to a Venetian blind. When the engine requires cooling, the grille opens to dissipate heat; otherwise, it closes. The active grille's control circuit is designed to control the grille. This circuit receives input control signals and drives the passive actuator based on these signals, opening and closing the grille.

[0056] The operating status of the active air intake grille indicates the grille's open or closed state. If the active air intake grille is considered a Venetian blind, an active closed air intake grille is a Venetian blind with adjustable opening and closing, and the operating status refers to the opening and closing degree. It should be noted that the open or closed state of the active air intake grille can be indicated by other direct or indirect means, and is not limited to the opening and closing degree parameter. This is not specifically limited in the present embodiment. Specifically, the control circuit of the active air intake grille is energized, the active air intake grille system is activated, and data acquired by the sensor is used to determine the opening and closing degree of the active air intake grille.

[0057] Step 204 , when the operating state of the active air intake grille meets the preset state, the actual opening and closing angle of the active air intake grille is compared with the preset angle to determine the communication state of the control signal line of the active air intake grille system;

[0058] Among them, the preset state refers to the initial state that the active air intake grille should meet before the anti-interference test of the active air intake grille is carried out. The preset state is used to determine whether the active air intake grille to be tested meets the initial conditions of the anti-interference test, thereby avoiding testing non-compliant active air intake grilles and wasting manpower, material resources and other resources.

[0059] The control signal line is the communication line between the host computer and the active grille system. When testing the anti-interference performance of the active grille, it is necessary to ensure that the active grille and the host computer can communicate normally. In other words, the control signal line can accurately transmit control commands so that the active grille system responds to the control commands. The communication status here refers to whether the control signal line can communicate normally, for example, communication status can include normal communication and abnormal communication.

[0060] It should be noted that when controlling the active air intake grille, the host computer (server) issues a control command via the control signal line. The control command includes the expected opening and closing angle that the active air intake grille must meet, which is used as the preset angle. After receiving the command, the active air intake grille system adjusts the opening and closing angle of the active air intake grille according to the control command, so that the active air intake grille has an actual opening and closing angle. It is understandable that by comparing the actual opening and closing angle of the active air intake grille with the preset angle, it is determined whether the active air intake grille system and the control signal line can operate normally when interfered with by the interference signal. By determining whether the secondary opening and closing degree meets the initial opening and closing degree, the purpose of initial calibration of the active air intake grille is achieved.

[0061] Step 206 , when the communication status of the control signal line indicates normal communication, transmitting an interference signal to the active air intake grille system to obtain in real time the communication status of the control signal line and the response status of the passive actuator to the control command issued via the control signal line;

[0062] Interference signals are electromagnetic signals generated by interference signal sources and are used to test the electromagnetic compatibility of active grille systems. Interference signals may affect the active grille system within the EMC chamber. By acquiring real-time communication status of the control signal line and the response of the passive actuator to control commands issued via the control signal line, we can determine whether the active grille system is affected, thereby assessing its anti-interference capability.

[0063] Step 208 : Determine the anti-interference level of the active air intake grille according to the communication status and the response status.

[0064] If abnormal situations occur such as communication interruption of the control signal or failure of the actuator device to respond, record the current interference signal frequency band and field strength value, and analyze and rectify the electromagnetic compatibility radiation interference resistance of the active air intake system based on the recorded data.

[0065] In the method provided in the above embodiment, the active air intake grille system is activated to obtain the operating status of the active air intake grille, which indicates the degree of opening or closing of the active air intake grille. When the operating status of the active air intake grille meets the preset status, the actual opening or closing angle of the active air intake grille is compared with the preset angle to determine the communication status of the control signal line of the active air intake grille system. When the communication status of the control signal line indicates normal communication, an interference signal is transmitted to the active air intake grille system to obtain the communication status of the control signal line and the response status of the passive actuator to the control command issued via the control signal line in real time. Based on the communication status and response status, the anti-interference level of the active air intake grille is determined. By transmitting an interference signal to the active air intake grille system in an electromagnetic compatibility chamber, the overall operating status of the active air intake grille system is monitored in real time, and its anti-interference performance is tested. In addition, the communication status test of the control signal line of the active air intake grille system is added before the anti-interference test. This allows for more accurate acquisition of the parameters of the active air intake grille system at the moment of interference, thereby enabling analysis of the anti-interference performance.

[0066] In one embodiment, the preset state is a first state or a second state, the first state is used to indicate that the active air intake grille is fully opened, and the second state is used to indicate that the active air intake grille is fully closed.

[0067] If the active air intake grille is considered a Venetian blind, the first state is when it is fully open, achieving maximum ventilation. The first state can be quantified as the grille's opening and closing angle at this time. The second state is when the grille is completely unable to ventilate. Similarly, the first state can be quantified as the grille's opening and closing angle at this time. It should be noted that the opening and closing angles corresponding to the first and second states should be two different angles set based on the same standard.

[0068] In the method provided in the above embodiment, the active air intake grille system is calibrated before testing by setting the fully open and fully closed states. The two extreme states of the active air intake grille are more convenient for calibration.

[0069] In one embodiment, see Figure 3 , comparing the actual opening and closing angle of the active air intake grille with the preset angle, and determining the communication status of the control signal line of the active air intake grille system, including:

[0070] Step 302: setting the opening and closing angles of the active air intake grille to a plurality of preset angles, and obtaining the actual opening and closing angle corresponding to each preset angle of the active air intake grille;

[0071] Step 304: For any preset angle, calculate the difference between the preset angle and the corresponding actual opening and closing angle. If the difference is less than a preset threshold, determine that the communication execution result corresponding to the preset angle is normal.

[0072] Step 306 : When the communication execution results corresponding to the plurality of preset angles meet preset conditions, it is determined that the communication state of the control signal line of the active air intake grille system indicates normal communication.

[0073] According to the above explanation, by comparing the actual opening and closing angle of the active air intake grille system with the preset angle, the communication status of the control signal line of the current active air intake grille system can be determined. However, a test is accidental, so multiple preset angles are selected, and the active air intake grille is adjusted multiple times. The actual opening and closing angle of the active air intake grille after each adjustment is compared with the corresponding preset angle to determine the communication execution result of the control signal line of each adjustment.

[0074] The preset threshold indicates that there can be a certain amount of error between the actual value and the ideal value, and the two values ​​do not need to be exactly equal. The size of the preset threshold is related to the accuracy of the anti-interference test results of the active air intake grille, and the specific value is set according to the actual application scenario.

[0075] When determining the communication status of the control signal line based on the communication execution results corresponding to multiple preset angles, the preset conditions are applicable to screening the communication execution results corresponding to multiple preset angles. It can be required that the communication execution results corresponding to all preset angles are normal communication before the communication status of the control signal line is determined to indicate normal communication; or a threshold can be set. When the communication execution results corresponding to more than a threshold number of preset angles are normal communication, the communication status of the control signal line is determined to indicate normal communication.

[0076] In the method provided in the above embodiment, a host computer sets multiple preset angles, adjusts the active grille's state multiple times via the control signal line, and determines the actual communication status of the control signal line. This multi-set data set avoids randomness in the results, reduces the impact of control signal line failures on the interference immunity test results, and improves the accuracy and stability of the active grille system's interference immunity test.

[0077] In one embodiment, see Figure 1 An interference signal source is provided outside the electromagnetic compatibility darkroom, and a radiation antenna is provided inside the electromagnetic compatibility darkroom. The interference signal source and the radiation antenna are connected via an anti-interference signal transmission cable. Accordingly, an interference signal is transmitted to the active air intake grille system, including:

[0078] The initial interference signal is transmitted to the signal amplifier through the interference signal source, and the signal amplifier amplifies the initial interference signal and transmits it to the radiation antenna.

[0079] Since the interference signal emitted by the interference signal source has a small intensity, the test effect may not be achieved when it acts directly on the active air intake grille system. Therefore, after the interference signal source generates the initial interference signal, the initial interference signal can be input into the signal amplifier, amplified, and then transmitted into the electromagnetic compatibility darkroom. A radiating antenna transmits the interference signal in the electromagnetic compatibility darkroom. At this time, the interference signal has an electromagnetic field in the entire electromagnetic compatibility darkroom, which will have a certain impact on the active air intake grille system placed in the electromagnetic compatibility darkroom, and then analyze the anti-interference performance of the active air intake grille system.

[0080] In the method provided in the above embodiment, the interference signal generated in the electromagnetic compatibility darkroom is sent to the closed indoor space through the radiation antenna, which is used to study the anti-interference performance of the active air intake grille system. This can avoid the influence of external environmental factors on the anti-interference performance of the active air intake grille system and ensure the test results of the anti-interference performance of the active air intake grille system.

[0081] In one embodiment, determining the anti-interference level of the active air intake grille based on the communication state and the response state includes:

[0082] When the communication status indicates abnormal communication or the response status indicates that the actuator does not respond, parameters of the interference signal emitted by the radiation antenna are obtained, the parameters are compared with parameter thresholds, and the anti-interference level of the active air intake grille is determined.

[0083] It should be noted that communication between the host computer and the active grille system is accomplished via a control signal line. The electrical signals used to transmit commands can be affected by interference signals. Therefore, the communication status of the control signal line can be used to determine whether the active grille system is affected. Similarly, within the active grille system, the control unit adjusts the state of the active grille. This control unit is an integrated circuit composed of multiple electronic components and may therefore be affected by electromagnetic interference signals.

[0084] In an embodiment of the present application, when the control signal line communication is abnormal or the execution device does not respond to the instruction, it is determined that the active air intake grille system is affected by the interference signal. At this time, the parameters of the interference signal are recorded to facilitate subsequent analysis of the anti-interference level of the active air intake grille based on the parameters.

[0085] In one embodiment, see Figure 4 , the parameters include signal frequency band and field strength value; accordingly, the parameters are compared with parameter thresholds to determine the anti-interference level of the active air intake grille, including:

[0086] Step 402 , when the signal frequency band meets the preset frequency band and the field strength value meets the preset field strength value range, determining that the anti-interference level of the active air intake grille is the first strength level;

[0087] Step 404: If the signal frequency band meets the preset frequency band or the field strength value meets the preset field strength value range, then the anti-interference level of the active air intake grille is determined to be the second strength level;

[0088] Step 406 , when the signal frequency band does not conform to the preset frequency band and the field strength value does not meet the preset field strength value range, determining the anti-interference level of the active air intake grille to be the third strength level;

[0089] The first intensity level indicates a higher degree of anti-interference than the second intensity level, and the second intensity level indicates a higher degree of anti-interference than the third intensity level.

[0090] The preset signal frequency band refers to the signal frequency band that is not considered during the electromagnetic compatibility radiation immunity test of the active air intake grille system. In other words, the impact of interference signals in the preset frequency band on the immunity is not considered. It can be understood that when the active air intake grille system is affected, if the signal frequency band at this time is not within the test range, then it means that the active air intake grille system has strong immunity within the required test range. Similarly, the preset field strength value range for the interference signal is also a range that is not considered.

[0091] The anti-interference level judgment method mentioned in this embodiment is only one of them. The simplest range judgment is used to determine the anti-interference level. Other forms of analysis of the anti-interference performance of the active air intake grille can also be performed based on the signal frequency band and field strength value of the interference signal obtained when the active air intake grille system is affected.

[0092] In the method provided in the above embodiment, the anti-interference level of the active air intake grille is determined directly by the signal frequency band and field strength value of the interference signal, which is indirect and clear, reduces the computer's analysis power, and improves analysis efficiency.

[0093] It should be understood that, although the steps in the flowcharts of the above embodiments are shown in sequence as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be performed in other orders. Moreover, at least a portion of the steps in the flowcharts of the above embodiments may include multiple steps or multiple stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily to be performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0094] Based on the same inventive concept, embodiments of the present application also provide an active air intake grille electromagnetic compatibility radiation immunity testing device for implementing the aforementioned active air intake grille electromagnetic compatibility radiation immunity testing method. The solution provided by this device is similar to the solution described in the aforementioned method. Therefore, the specific limitations of one or more embodiments of the active air intake grille electromagnetic compatibility radiation immunity testing device provided below can be found in the aforementioned definitions of the active air intake grille electromagnetic compatibility radiation immunity testing method, and will not be further elaborated here.

[0095] In one embodiment, Figure 5 As shown, a device for testing electromagnetic compatibility radiation immunity of an active air intake grille is provided, comprising: a first acquisition module 501, a first determination module 502, a second acquisition module 503 and a second determination module 504, wherein:

[0096] A first acquisition module 501 is used to activate the active air intake grille system and acquire the working state of the active air intake grille, where the working state indicates the degree of opening and closing of the active air intake grille;

[0097] A first determining module 502 is configured to compare an actual opening and closing angle of the active air intake grille with a preset angle when the operating state of the active air intake grille meets a preset state, and determine a communication state of a control signal line of the active air intake grille system;

[0098] The second acquisition module 503 is configured to transmit an interference signal to the active air intake grille system when the communication status of the control signal line indicates normal communication, and to acquire in real time the communication status of the control signal line and the response status of the passive actuator to the control instruction issued via the control signal line;

[0099] The second determining module 504 is configured to determine the anti-interference level of the active air intake grille according to the communication state and the response state.

[0100] In one embodiment, the first determining module 502 is further configured to determine whether the preset state is a first state or a second state, wherein the first state indicates that the active air intake grille is fully open, and the second state indicates that the active air intake grille is fully closed.

[0101] In one embodiment, the first determining module 502 further includes a setting unit, a comparing unit, and a determining unit, wherein:

[0102] a setting unit, configured to set the opening and closing angles of the active air intake grille to a plurality of preset angles, and to obtain an actual opening and closing angle corresponding to each preset angle of the active air intake grille;

[0103] a comparison unit, configured to calculate, for any preset angle, a difference between the preset angle and the corresponding actual opening and closing angle, and determine that the communication execution result corresponding to the preset angle is normal when the difference is less than a preset threshold;

[0104] The determining unit is configured to determine that the communication state of the control signal line of the active air intake grille system indicates normal communication when the communication execution results corresponding to the plurality of preset angles meet a preset condition.

[0105] In one embodiment, the second determining module 504 is further configured to transmit an initial interference signal to a signal amplifier via an interference signal source, and the signal amplifier amplifies the initial interference signal and transmits the amplified signal to a radiating antenna.

[0106] In one embodiment, the second determining module 504 is further configured to:

[0107] When the communication status indicates abnormal communication or the response status indicates that the actuator does not respond, parameters of the interference signal emitted by the radiation antenna are obtained, the parameters are compared with parameter thresholds, and the anti-interference level of the active air intake grille is determined.

[0108] In one embodiment, the second determining module 504 is further configured to:

[0109] When the signal frequency band meets the preset frequency band and the field strength value meets the preset field strength value range, the anti-interference level of the active air intake grille is determined to be the first strength level;

[0110] When the signal frequency band meets the preset frequency band or the field strength value meets the preset field strength value range, the anti-interference level of the active air intake grille is determined to be the second intensity level;

[0111] If the signal frequency band does not conform to the preset frequency band and the field strength value does not meet the preset field strength value range, the anti-interference level of the active air intake grille is determined to be the third intensity level;

[0112] The first intensity level indicates a higher degree of anti-interference than the second intensity level, and the second intensity level indicates a higher degree of anti-interference than the third intensity level.

[0113] Each module in the aforementioned active grille electromagnetic compatibility radiation immunity testing device can be implemented in whole or in part through software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor within a computer device in hardware form, or stored in a computer device memory in software form, allowing the processor to call and execute the corresponding operations of each module.

[0114] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as follows: Figure 6 As shown. The computer device includes a processor, a memory and a network interface connected via a system bus. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store control instruction data. The network interface of the computer device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, a method for testing the electromagnetic compatibility radiation immunity of an active air intake grille is implemented.

[0115] Those skilled in the art will understand that Figure 6 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0116] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the following steps are implemented:

[0117] Turn on the active air intake grille system and obtain the working status of the active air intake grille, which is used to indicate the degree of opening and closing of the active air intake grille;

[0118] When the working state of the active air intake grille meets the preset state, the actual opening and closing angle of the active air intake grille is compared with the preset angle to determine the communication state of the control signal line of the active air intake grille system;

[0119] When the communication status of the control signal line indicates normal communication, transmitting an interference signal to the active air intake grille system to obtain in real time the communication status of the control signal line and the response status of the passive actuator to the control command issued via the control signal line;

[0120] The anti-interference level of the active air intake grille is determined based on the communication status and response status.

[0121] In one embodiment, when the processor executes the computer program, it further implements the following steps: determining that the preset state is a first state or a second state, the first state is used to indicate that the active air intake grille is fully open, and the second state is used to indicate that the active air intake grille is fully closed.

[0122] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0123] Setting the opening and closing angles of the active air intake grille to multiple preset angles, and obtaining the actual opening and closing angle corresponding to each preset angle of the active air intake grille;

[0124] For any preset angle, calculate the difference between any preset angle and the corresponding actual opening and closing angle, and when the difference is less than a preset threshold, determine that the communication execution result corresponding to any preset angle is normal;

[0125] In a case where the communication execution results corresponding to the plurality of preset angles meet preset conditions, it is determined that the communication state of the control signal line of the active air intake grille system indicates normal communication.

[0126] In one embodiment, an interference signal source is provided outside the electromagnetic compatibility chamber, a radiating antenna is provided inside the electromagnetic compatibility chamber, and the interference signal source and the radiating antenna are connected via an anti-interference signal transmission cable; accordingly, when the processor executes the computer program, the following steps are further implemented:

[0127] The initial interference signal is transmitted to the signal amplifier through the interference signal source, and the signal amplifier amplifies the initial interference signal and transmits it to the radiation antenna.

[0128] In one embodiment, when the processor executes the computer program, the processor further implements the following steps:

[0129] When the communication status indicates abnormal communication or the response status indicates that the actuator does not respond, parameters of the interference signal emitted by the radiation antenna are obtained, the parameters are compared with parameter thresholds, and the anti-interference level of the active air intake grille is determined.

[0130] In one embodiment, the parameters include a signal frequency band and a field strength value; accordingly, when the processor executes the computer program, the processor further implements the following steps:

[0131] When the signal frequency band meets the preset frequency band and the field strength value meets the preset field strength value range, the anti-interference level of the active air intake grille is determined to be the first strength level;

[0132] When the signal frequency band meets the preset frequency band or the field strength value meets the preset field strength value range, the anti-interference level of the active air intake grille is determined to be the second intensity level;

[0133] If the signal frequency band does not conform to the preset frequency band and the field strength value does not meet the preset field strength value range, the anti-interference level of the active air intake grille is determined to be the third intensity level;

[0134] The first intensity level indicates a higher degree of anti-interference than the second intensity level, and the second intensity level indicates a higher degree of anti-interference than the third intensity level.

[0135] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0136] Turn on the active air intake grille system and obtain the working status of the active air intake grille, which is used to indicate the degree of opening and closing of the active air intake grille;

[0137] When the working state of the active air intake grille meets the preset state, the actual opening and closing angle of the active air intake grille is compared with the preset angle to determine the communication state of the control signal line of the active air intake grille system;

[0138] When the communication status of the control signal line indicates normal communication, transmitting an interference signal to the active air intake grille system to obtain in real time the communication status of the control signal line and the response status of the passive actuator to the control command issued via the control signal line;

[0139] The anti-interference level of the active air intake grille is determined based on the communication status and response status.

[0140] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: determining that the preset state is a first state or a second state, the first state is used to indicate that the active air intake grille is fully open, and the second state is used to indicate that the active air intake grille is fully closed.

[0141] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0142] Setting the opening and closing angles of the active air intake grille to multiple preset angles, and obtaining the actual opening and closing angle corresponding to each preset angle of the active air intake grille;

[0143] For any preset angle, calculate the difference between any preset angle and the corresponding actual opening and closing angle, and when the difference is less than a preset threshold, determine that the communication execution result corresponding to any preset angle is normal;

[0144] In a case where the communication execution results corresponding to the plurality of preset angles meet preset conditions, it is determined that the communication state of the control signal line of the active air intake grille system indicates normal communication.

[0145] In one embodiment, an interference signal source is provided outside the electromagnetic compatibility chamber, a radiating antenna is provided inside the electromagnetic compatibility chamber, and the interference signal source and the radiating antenna are connected via an anti-interference signal transmission cable; accordingly, when the computer program is executed by the processor, the following steps are further implemented:

[0146] The initial interference signal is transmitted to the signal amplifier through the interference signal source, and the signal amplifier amplifies the initial interference signal and transmits it to the radiation antenna.

[0147] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0148] When the communication status indicates abnormal communication or the response status indicates that the actuator does not respond, parameters of the interference signal emitted by the radiation antenna are obtained, the parameters are compared with parameter thresholds, and the anti-interference level of the active air intake grille is determined.

[0149] In one embodiment, the parameters include a signal frequency band and a field strength value; accordingly, when the computer program is executed by a processor, the following steps are further implemented:

[0150] When the signal frequency band meets the preset frequency band and the field strength value meets the preset field strength value range, the anti-interference level of the active air intake grille is determined to be the first strength level;

[0151] When the signal frequency band meets the preset frequency band or the field strength value meets the preset field strength value range, the anti-interference level of the active air intake grille is determined to be the second intensity level;

[0152] If the signal frequency band does not conform to the preset frequency band and the field strength value does not meet the preset field strength value range, the anti-interference level of the active air intake grille is determined to be the third intensity level;

[0153] The first intensity level indicates a higher degree of anti-interference than the second intensity level, and the second intensity level indicates a higher degree of anti-interference than the third intensity level.

[0154] In one embodiment, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements the following steps:

[0155] Turn on the active air intake grille system and obtain the working status of the active air intake grille, which is used to indicate the degree of opening and closing of the active air intake grille;

[0156] When the working state of the active air intake grille meets the preset state, the actual opening and closing angle of the active air intake grille is compared with the preset angle to determine the communication state of the control signal line of the active air intake grille system;

[0157] When the communication status of the control signal line indicates normal communication, transmitting an interference signal to the active air intake grille system to obtain in real time the communication status of the control signal line and the response status of the passive actuator to the control command issued via the control signal line;

[0158] The anti-interference level of the active air intake grille is determined based on the communication status and response status.

[0159] In one embodiment, when the computer program is executed by the processor, the following steps are further implemented: determining that the preset state is a first state or a second state, the first state is used to indicate that the active air intake grille is fully open, and the second state is used to indicate that the active air intake grille is fully closed.

[0160] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0161] Setting the opening and closing angles of the active air intake grille to multiple preset angles, and obtaining the actual opening and closing angle corresponding to each preset angle of the active air intake grille;

[0162] For any preset angle, calculate the difference between any preset angle and the corresponding actual opening and closing angle, and when the difference is less than a preset threshold, determine that the communication execution result corresponding to any preset angle is normal;

[0163] In a case where the communication execution results corresponding to the plurality of preset angles meet preset conditions, it is determined that the communication state of the control signal line of the active air intake grille system indicates normal communication.

[0164] In one embodiment, an interference signal source is provided outside the electromagnetic compatibility chamber, a radiating antenna is provided inside the electromagnetic compatibility chamber, and the interference signal source and the radiating antenna are connected via an anti-interference signal transmission cable; accordingly, when the computer program is executed by the processor, the following steps are further implemented:

[0165] The initial interference signal is transmitted to the signal amplifier through the interference signal source, and the signal amplifier amplifies the initial interference signal and transmits it to the radiation antenna.

[0166] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0167] When the communication status indicates abnormal communication or the response status indicates that the actuator does not respond, parameters of the interference signal emitted by the radiation antenna are obtained, the parameters are compared with parameter thresholds, and the anti-interference level of the active air intake grille is determined.

[0168] In one embodiment, the parameters include a signal frequency band and a field strength value; accordingly, when the computer program is executed by a processor, the following steps are further implemented:

[0169] When the signal frequency band meets the preset frequency band and the field strength value meets the preset field strength value range, the anti-interference level of the active air intake grille is determined to be the first strength level;

[0170] When the signal frequency band meets the preset frequency band or the field strength value meets the preset field strength value range, the anti-interference level of the active air intake grille is determined to be the second intensity level;

[0171] If the signal frequency band does not conform to the preset frequency band and the field strength value does not meet the preset field strength value range, the anti-interference level of the active air intake grille is determined to be the third intensity level;

[0172] The first intensity level indicates a higher degree of anti-interference than the second intensity level, and the second intensity level indicates a higher degree of anti-interference than the third intensity level.

[0173] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory may include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processor involved in the various embodiments provided herein may be, but are not limited to, a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, and the like.

[0174] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0175] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A method for testing the electromagnetic compatibility radiation anti-interference of an active air intake grille, characterized in that: Applied to the detection of active air intake grille system in the electromagnetic compatibility darkroom; The active air intake grille system comprises an active air intake grille and a passive actuator, and the method comprises: Turning on the active air intake grille system to obtain a working state of the active air intake grille, wherein the working state is used to indicate the degree of opening and closing of the active air intake grille; When the working state of the active air intake grille meets the preset state, comparing the actual opening and closing angle of the active air intake grille with the preset angle to determine the communication state of the control signal line of the active air intake grille system; When the communication state of the control signal line indicates normal communication, transmitting an interference signal to the active air intake grille system to obtain in real time the communication state of the control signal line and the response state of the passive actuator to the control instruction issued via the control signal line; An anti-interference level of the active air intake grille is determined according to the communication state and the response state.

2. The method according to claim 1, characterized in that The preset state is a first state or a second state, the first state is used to indicate that the active air intake grille is fully opened, and the second state is used to indicate that the active air intake grille is fully closed.

3. The method according to claim 1, characterized in that: The comparing the actual opening and closing angle of the active air intake grille with the preset angle to determine the communication state of the control signal line of the active air intake grille system includes: Setting the opening and closing angle of the active air intake grille to a plurality of preset angles, and obtaining an actual opening and closing angle corresponding to each preset angle of the active air intake grille; For any preset angle, calculate the difference between the preset angle and the corresponding actual opening and closing angle, and when the difference is less than a preset threshold, determine that the communication execution result corresponding to the preset angle is normal; In a case where the communication execution results corresponding to the plurality of preset angles satisfy a preset condition, it is determined that the communication state of the control signal line of the active air intake grille system indicates normal communication.

4. The method according to claim 1, characterized in that An interference signal source is arranged outside the electromagnetic compatibility darkroom, a radiation antenna is arranged inside the electromagnetic compatibility darkroom, and the interference signal source and the radiation antenna are connected via an anti-interference signal transmission cable; Accordingly, transmitting an interference signal to the active air intake grille system includes: The interference signal source transmits an initial interference signal to a signal amplifier, and the signal amplifier amplifies the initial interference signal and transmits the amplified signal to the radiation antenna.

5. The method according to claim 4, characterized in that The step of determining the anti-interference level of the active air intake grille according to the communication state and the response state includes: When the communication status indicates abnormal communication or the response status indicates that the actuator does not respond, parameters of the interference signal emitted by the radiating antenna are obtained, and the parameters are compared with parameter thresholds to determine the anti-interference level of the active air intake grille.

6. The method according to claim 5, characterized in that The parameters include a signal frequency band and a field strength value; accordingly, comparing the parameters with a parameter threshold to determine the anti-interference level of the active air intake grille includes: When the signal frequency band meets the preset frequency band and the field strength value meets the preset field strength value range, determining that the anti-interference level of the active air intake grille is the first intensity level; When the signal frequency band meets the preset frequency band or the field strength value meets the preset field strength value range, determining the anti-interference level of the active air intake grille to be the second intensity level; When the signal frequency band does not conform to the preset frequency band and the field strength value does not meet the preset field strength value range, determining that the anti-interference level of the active air intake grille is the third intensity level; The first strength level indicates a higher degree of anti-interference than the second strength level, and the second strength level indicates a higher degree of anti-interference than the third strength level.

7. An electromagnetic compatibility radiation anti-interference test device for an active air intake grille, characterized in that: The device is used to detect the active air intake grille system in an electromagnetic compatibility darkroom; The active air intake grille system comprises an active air intake grille and a passive actuator, wherein the device comprises: A first acquisition module, used to start the active air intake grille system and acquire the working state of the active air intake grille, wherein the working state is used to indicate the opening and closing degree of the active air intake grille; A first determination module, configured to compare an actual opening and closing angle of the active air intake grille with a preset angle to determine a communication state of a control signal line of the active air intake grille system when the working state of the active air intake grille meets a preset state; A second acquisition module is used to transmit an interference signal to the active air intake grille system when the communication state of the control signal line indicates normal communication, and acquire the communication state of the control signal line and the response state of the passive execution device to the control instruction issued through the control signal line in real time; The second determination module is used to determine the anti-interference level of the active air intake grille according to the communication state and the response state.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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