Noise testing system, noise processing method, device and storage medium

Abstract

The present application relates to the field of automobile technology, and discloses a noise testing system, a noise processing method, a device and a storage medium to improve the effectiveness of noise testing. The noise testing system includes a voltage source, a data acquisition device, a data processing device, a noise sensor, a first vibration sensor and a second vibration sensor, wherein the noise sensor, the first vibration sensor and the second vibration sensor are respectively connected to the data acquisition device, the data acquisition device is connected to the data processing device, the noise sensor is used to be arranged in the vehicle under test, the first vibration sensor is used to be arranged on the fuel pump of the vehicle under test, the second vibration sensor is used to be arranged on the fuel pipeline of the fuel tank in the vehicle under test, and the positive and negative ends of the voltage source are respectively used to be connected to the positive and negative ends of the fuel pump.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a noise testing system, a noise processing method, a device and a storage medium. Background Art

[0002] The fuel pump noise of fuel vehicles has a great impact on the noise inside the car, mainly manifesting as medium and low frequency noise or high frequency noise, which affects the noise level and sound quality inside the car.

[0003] In the traditional industry's noise testing program for fuel pumps, the fuel pump is generally tested on a specific test bench. However, since the automobile system contains fuel pump motors, liquid gasoline, fuel lines, body structures and sound chambers, it is a relatively complex system. A single test bench is difficult to simulate the sound field environment of a real vehicle, so the noise collected on the test bench is mainly system radiation sound, which cannot fully characterize the noise source in the whole vehicle, making it difficult to provide an effective reference for the evaluation of the noise of the fuel pump and its pipeline system in the whole vehicle, and the effectiveness of the noise test is low. Summary of the invention

[0004] The present application provides a noise testing system, a noise processing method, a device and a storage medium to solve the technical problem of low effectiveness of noise testing.

[0005] To solve the above problems, the following solutions are provided:

[0006] A noise test system for a fuel system, the noise test system comprising a voltage source, a data acquisition device, a data processing device, a noise sensor, a first vibration sensor, and a second vibration sensor, wherein the noise sensor, the first vibration sensor, and the second vibration sensor are respectively connected to the data acquisition device, and the data acquisition device is connected to the data processing device. The noise sensor is used to be arranged in a vehicle under test, the first vibration sensor is used to be arranged on a fuel pump of the vehicle under test, and the second vibration sensor is used to be arranged on a fuel pipeline of a fuel tank in the vehicle under test, and the positive end and the negative end of the voltage source are respectively used to be connected to the positive end and the negative end of the fuel pump.

[0007] In one embodiment, the noise testing system comprises a plurality of the noise sensors, and each seat of the tested vehicle is provided with a plurality of the noise sensors at a position close to the fuel tank.

[0008] In one embodiment, the noise testing system includes a plurality of the second vibration sensors, a plurality of installation positions are provided on the fuel pipeline, and the plurality of the second vibration sensors are used to be arranged correspondingly at the plurality of installation positions respectively.

[0009] In one embodiment, the first vibration sensor is arranged on an end cover of the fuel pump.

[0010] In one embodiment, the noise testing system further comprises a measuring device, wherein a first measuring terminal and a second measuring terminal of the measuring device are respectively connected to a positive terminal and a negative terminal of the fuel pump.

[0011] A noise processing method, the method comprising:

[0012] Acquire target noise and vibration data in the vehicle under test under preset working conditions, wherein the target noise and vibration data include target noise data tested by the noise testing system and target vibration data tested by the noise testing system;

[0013] Analyzing the target vibration data to obtain operating frequency data of the fuel system;

[0014] The noise inside the vehicle of the fuel system at different operating frequencies is analyzed through the operating frequency data and the target noise data.

[0015] In one embodiment, the preset working condition includes a first working condition, and obtaining target noise and vibration data inside the vehicle under test under the preset working condition includes:

[0016] The target noise and vibration data in the vehicle under the first working condition is obtained, wherein the first working condition is that the engine of the tested vehicle is not working and the working voltage of the fuel pump of the tested vehicle is adjusted to a first required voltage.

[0017] In one embodiment, the preset working condition includes a second working condition, and obtaining target noise and vibration data inside the vehicle under test under the preset working condition includes:

[0018] The target noise and vibration data in the vehicle under the second operating condition is obtained, wherein the second operating condition is that the engine of the tested vehicle operates normally and the operating voltage of the fuel pump of the tested vehicle is adjusted to a second required voltage.

[0019] In one embodiment, after analyzing the noise of the fuel system in the vehicle at different operating frequencies through the operating frequency data and the target noise data, the method further includes:

[0020] According to the noise inside the vehicle at different operating frequencies of the fuel system, a noise spectrum diagram corresponding to the preset operating condition is rendered.

[0021] A noise processing device, comprising:

[0022] An acquisition module, used to acquire target noise and vibration data in the vehicle under test under preset working conditions, wherein the target noise and vibration data include target noise data generated by a fuel system and target vibration data generated by the fuel system;

[0023] The processing module is used to analyze the target vibration data to obtain the operating frequency data of the fuel system; and analyze the noise of the fuel system in the vehicle at different operating frequencies through the frequency data and the target noise data.

[0024] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the noise processing method are implemented.

[0025] A computer device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above-mentioned noise processing method when executing the computer program.

[0026] In one of the solutions provided above, the noise data of the fuel pump working alone under actual vehicle conditions and / or the noise data under actual vehicle working conditions can be evaluated, and the noise data measured under the boundary of the whole vehicle is more effective and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0028] Figure 1 is a system schematic diagram of a noise testing system in one embodiment of the present application;

[0029] Figure 2 is a flow chart of a noise processing method in one embodiment of the present application;

[0030] Figure 3 is another flow chart of a noise processing method in one embodiment of the present application;

[0031] Figure 4 is a structural schematic diagram of a noise processing device in one embodiment of the present application;

[0032] Figure 5 It is a structural diagram of a computer device in one embodiment of the present application. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] The embodiments of the present application mainly provide a noise test system for a fuel system, a noise processing method based on the noise test system, and related devices and media. For ease of understanding, the above aspects are described one by one below.

[0035] A. Noise Test System

[0036] In one embodiment, a noise testing system for a fuel system is provided, wherein a fuel system is included for a fuel-using automobile, and the fuel system includes a fuel pump assembly and a fuel tank (17), wherein the fuel tank (17) is connected to the fuel pump assembly, and the fuel pump assembly includes a fuel pump and other related components. In the embodiment of the present application, in order to test the in-vehicle noise and in-vehicle vibration data caused by the fuel pipeline of the fuel pump and the fuel tank, a new noise testing system is provided. Figure 1 As shown, the noise test system comprises a voltage source (15), a data acquisition device (13), a data processing device (14), a noise sensor (1-8), a first vibration sensor (9), and a second vibration sensor (10-12), wherein the noise sensor (1-8), the first vibration sensor (9), and the second vibration sensor (10-12) are respectively connected to the data acquisition device (13), the data acquisition device (13) is used to acquire data detected by the noise sensor and / or the vibration sensor, the data acquisition device (13) is connected to the data processing device (14), and the data processing device (14) is used to analyze and process the data acquired by the data acquisition device (13), the noise sensor (1-8) is used to be arranged in the vehicle under test, the noise sensor (1-8) is used to detect noise data near the ears of seat passengers, the first vibration sensor (9) is used to be arranged on the fuel pump, the second vibration sensor (10-12) is used to be arranged on the fuel pipeline of the fuel tank, and the first and second vibration sensors are used to detect vibration data of the fuel pump and the fuel pipeline of the fuel tank. The positive end and the negative end of the voltage source (15) are respectively used to be connected to the positive end and the negative end of the fuel pump, and the voltage source (15) is used to provide the working voltage required by the fuel pump so that the fuel pump can work.

[0037] It can be seen from this embodiment that in the noise testing system provided in the embodiment of the present application, the voltage source (15) can provide various working voltages required by the fuel pump, so that the noise and vibration data of the fuel pump working alone or not working alone are collected by using the arranged noise and vibration sensors, and the in-vehicle noise and in-vehicle vibration data of different working conditions under the conditions of the actual vehicle are obtained. On the one hand, the fuel pump can work alone on the actual vehicle for testing, and can be adjusted according to the different required voltages of the fuel pump, so as to test and evaluate the noise and vibration of different automobile working conditions based on this whole vehicle, so as to effectively carry out fuel pump noise risk assessment and scheme feasibility study; on the other hand, the objective test data of the influence of the fuel pipeline of the fuel pump and the fuel tank on the in-vehicle noise can be accurately and effectively evaluated, thereby improving the test accuracy.

[0038] In one embodiment, the noise test system comprises a plurality of the noise sensors (1-8), and each seat of the tested vehicle is provided with a plurality of the noise sensors near the fuel tank 17. For example, Figure 1 As shown, Figure 1 The vehicle under test shown in the figure includes 4 seats, and each seat is provided with 2 noise sensors near the fuel tank 17, that is, 8 noise sensors can be provided. Figure 1 The serial numbers 1-8 in the figure refer to these 8 noise sensors.

[0039] In this embodiment, since the noise caused by the fuel pump and the fuel pipeline of the fuel tank on different seats in the car is different, in order to test the noise data in the car more comprehensively and accurately, this embodiment will arrange noise sensors on each seat to comprehensively obtain the noise data at different positions in the car, and the specific arrangement position is the position of each seat near the fuel tank 17, which further improves the accuracy of the noise data. It should be noted that Figure 1 This is only an example. In other embodiments, the number and specific positions of the noise sensors on the seats in the vehicle are not limited. For example, one or more noise sensors may be arranged on the seats, or not all seats are arranged with noise sensors. Noise sensors may be arranged on two or three seats closest to the fuel tank 17, while the other seats are not arranged with noise sensors. These are all feasible solutions.

[0040] In one embodiment, the first vibration sensor (9) is arranged on the end cover of the fuel pump. It should be noted that the end cover of the fuel pump can better reflect the location of the vibration source. Therefore, the embodiment of the present application can more accurately obtain the vibration data caused by the fuel pump by arranging the first vibration sensor (9) on the end cover of the fuel pump. It should be noted that in other embodiments, the first vibration sensor (9) can also be arranged at other pump body positions of the fuel pump, which is not specifically limited.

[0041] In one embodiment, the noise testing system comprises a plurality of the second vibration sensors (10-12), a plurality of installation positions are arranged on the fuel pipeline of the fuel tank 17, and the plurality of the second vibration sensors (10-12) are respectively arranged at the plurality of installation positions, that is, a second vibration sensor is arranged at each installation position. For example, Figure 1 As shown, Figure 1 The fuel pipeline of the fuel tank shown in FIG. 1 is provided with three installation positions, and the noise test system is provided with three second vibration sensors, such as Figure 1 The serial numbers 10-12 in the figure refer to the three noise sensors, and the three second vibration sensors are respectively installed at the three installation positions.

[0042] In this embodiment, since the vibrations caused by different positions of the fuel line are different and the line is relatively long, in order to more comprehensively and accurately test the vibration data in the vehicle, this embodiment will evenly arrange second vibration sensors in the fuel line to comprehensively obtain the vibration data of different positions of the fuel line, further improving the accuracy of the vibration data. It should be noted that Figure 1 This is only an example description. In other embodiments, the specific number and specific installation position of the second vibration sensor on the fuel pipeline are not limited. For example, 2 or more than 4 noise sensors can be arranged on the fuel pipeline, and this application does not make any specific limitation.

[0043] In one embodiment, the noise test system further comprises a measuring device (16), wherein a first measuring terminal and a second measuring terminal of the measuring device are respectively connected to a positive terminal and a negative terminal of the fuel pump. The measuring terminals can be used to detect in real time whether the working voltage provided by the voltage source (15) to the fuel pump is accurate, so as to ensure the effectiveness of the test. Exemplarily, the measuring device (16) can be a multimeter that is easy to use, and the specifics are not limited thereto.

[0044] In one embodiment, the data processing device may be a personal PC with a display module, or other processing devices with a display module, so as to facilitate subsequent analysis and application processing of the acquired noise data and vibration data, without specific limitation.

[0045] B. Noise processing methods

[0046] As described in the above section A, an embodiment of the present application provides a noise testing system for a fuel system. Based on the noise testing system, a corresponding noise processing method is provided, including noise testing and noise analysis, which are described in detail below.

[0047] In one embodiment, if Figure 2As shown, a noise processing method is provided, comprising the following steps:

[0048] S10: Acquire target noise and vibration data inside the tested vehicle under preset working conditions, wherein the target noise and vibration data include target noise data tested by the noise testing system and target vibration data tested by the noise testing system.

[0049] First of all, before conducting noise testing based on the noise test system, the noise test system needs to be built. The construction process includes test equipment preparation, test preparation and specific test work, as shown below:

[0050] (1) Prepare test equipment

[0051] a. A noise sensor, which is arranged on the seat near the fuel tank as described above and is used to collect noise data near the ears of passengers in the car;

[0052] b. a vibration sensor, comprising a first vibration sensor and a second vibration sensor, which are respectively arranged on the fuel pump and the fuel pipeline of the fuel tank;

[0053] c. Voltage source and connecting wires. The voltage source can be a 24V regulated power supply;

[0054] d. Measuring equipment, which may be a multimeter;

[0055] e. Data acquisition equipment;

[0056] f. Data processing equipment, such as personal PCs;

[0057] g. The vehicle under test is a complete vehicle.

[0058] (2) Test preparation

[0059] a. The tested vehicle is placed in an anechoic chamber. For example, the anechoic chamber may be a semi-anechoic chamber (e.g., an anechoic chamber with a background noise of less than 25 decibels). Then, the seat on the upper end of the fuel tank is opened to expose the inspection port of the fuel pump.

[0060] b. Open the fuel pump inspection port, use the prepared connecting wires to lead wires from the positive and negative power supply terminals of the fuel pump, respectively connect them to the positive and negative power supply terminals of the voltage-stabilized power supply, and connect the multimeter to the positive and negative power supply terminals of the fuel pump, respectively, so that the multimeter can read the terminal voltage of the fuel pump in real time. After the arrangement is completed, restore the fuel pump inspection port and seat;

[0061] c. Arrange the noise sensor and two vibration sensors at corresponding positions in the vehicle according to the system settings, and connect the sensors to the data acquisition device in sequence through connecting lines, connect the data acquisition device to the PC, and open and debug the acquisition software on the PC;

[0062] d. Close the doors and windows of the vehicle being tested, then connect the voltage stabilizer, turn on the switch of the voltage stabilizer, and adjust the voltage knob to the working voltage required by the fuel pump under the required test conditions to conduct noise testing.

[0063] (2) Experimental work

[0064] After the above operations (1) and (2), the noise test can be performed. In the embodiment of the present application, according to the test requirements, the vehicle under test is operated under the preset working conditions, and then the target noise data generated in the vehicle detected by the noise sensor and the target vibration data generated in the vehicle detected by the vibration sensor are collected by the data acquisition device. The data acquisition device then sends the collected target noise data and target vibration data to the PC. For the PC, the target noise and vibration data in the vehicle under the preset working conditions can be obtained. The target noise and vibration data include the collected target noise data and the collected target vibration data.

[0065] S20: Analyze the target vibration data to obtain the operating frequency data of the fuel system.

[0066] It can be understood that the target vibration data is the vibration data arranged at the relevant position of the fuel system (the pipeline of the fuel pump and the fuel tank). After obtaining the target vibration data, the operating frequency of the fuel pump can be identified by analyzing the target vibration data. It can be understood that the vibration sensor is generally used to determine the working base frequency of the oil pump and detect the vibration of the pipeline installation point. By analyzing these data, the working frequency data of the fuel system can be obtained. The working frequency data characterizes the change of the working frequency of the fuel system during the preset working condition test, including the working frequency, etc.

[0067] S30: Analyze the noise of the fuel system in the vehicle at different operating frequencies based on the operating frequency data and the target noise data.

[0068] After obtaining the operating frequency data, the noise of the fuel system at different operating frequencies can be found from the target noise data through the operating frequency data and the target noise data, thereby obtaining the noise change of the fuel system in the vehicle under the preset working conditions.

[0069] In this embodiment, a noise processing method for a fuel system based on a noise testing system is provided. It can be seen from this embodiment that the noise and vibration sensors arranged can be used to collect noise and vibration data of the fuel pump under different working conditions, and obtain in-vehicle noise and in-vehicle vibration data of different working conditions under actual vehicle conditions, so as to test and evaluate the noise and vibration of different automobile working conditions based on this whole vehicle, thereby effectively conducting a fuel pump noise risk assessment and a feasibility study of the scheme; on the other hand, the objective test data of the impact of the fuel pipeline of the fuel pump and the fuel tank on the in-vehicle noise can be accurately and effectively evaluated, thereby improving the test accuracy and the validity of the test data.

[0070] In one embodiment, if Figure 3 As shown, after S30, that is, after analyzing the noise of the fuel system at different operating frequencies through the operating frequency data and the target noise data, the method further includes the following steps:

[0071] S40: Rendering a noise spectrum diagram corresponding to the preset working condition according to the noise inside the vehicle at different working frequencies of the fuel system.

[0072] In this embodiment, in order to clearly and intuitively reflect the noise conditions of the fuel system at different operating frequencies, the noise conditions in the vehicle corresponding to different operating frequencies of the fuel pump under preset working conditions can be clearly obtained by spectrum FFT analysis.

[0073] It should be noted that the noise generated by the fuel system is different under different working conditions. In order to comprehensively analyze the noise conditions in the vehicle under different working conditions, the embodiments of the present application may have different test processes according to the different preset working conditions adopted. They are described below.

[0074] In one embodiment, the preset operating condition includes a first operating condition, and obtaining the target noise and vibration data inside the vehicle under the preset operating condition includes: obtaining the target noise and vibration data inside the vehicle under the first operating condition, wherein the first operating condition is that the engine of the vehicle under test is not working, and the operating voltage of the fuel pump is adjusted to a first required voltage.

[0075] In this embodiment, the engine is set to be not working, and the voltage regulator is adjusted to the first required voltage, wherein the first required voltage can have different values, so that the fuel pump works at different oil pump orders. Different oil pump orders reflect the speed of the motor of the fuel pump. Exemplarily, the adjustment range of the first required voltage can be 6.5V-14V. Different first required voltages cause the fuel pump to work at different oil pump orders. The adjustment of the second required voltage can be adjusted directly through the voltage regulator, which is very convenient. It should be noted that the specific correspondence between the oil pump order and the required voltage is not limited here, and is related to the specific fuel pump control system. Exemplarily, the fuel pump orders of the fuel pump may include first-order, second-order, third-order and fourth-order. By adjusting the specific first required voltage to make the fuel pump operate at different oil orders, and then collecting the current corresponding target noise and vibration data, that is, the data acquisition device can collect the target noise and vibration data in the vehicle under the first working condition, so that the PC can obtain the noise data and vibration data of different oil orders under the first working condition. Finally, through the working frequency data corresponding to the first working condition and the target noise data, the noise of the fuel system at different working frequencies in the first working condition is analyzed.

[0076] It can be seen that through this embodiment, the noise generated by the fuel system can be analyzed separately, so that the fuel pump can work and be tested separately on the actual vehicle, and it can be adjusted according to the different required voltages of the fuel pump. On this basis, the noise under different working conditions can be tested and evaluated, so that the fuel pump noise risk assessment and solution feasibility study can be effectively carried out, the cause analysis cycle of the noise in the car can be shortened, and the problem troubleshooting efficiency and evaluation accuracy can be greatly improved.

[0077] In one embodiment, the preset operating condition may also include a second operating condition, and obtaining the target noise and vibration data inside the vehicle under the preset operating condition includes: obtaining the target noise and vibration data inside the vehicle under the second operating condition, wherein the second operating condition is that the engine of the vehicle under test operates normally, and the operating voltage of the fuel pump is adjusted to a second required voltage.

[0078] In this embodiment, the engine operation condition is set, and then the voltage regulator is adjusted to the second required voltage, wherein the second required voltage can also have different values ​​so that the fuel pump can work at different fuel pump orders. Exemplarily, the adjustment range of the second required voltage can also be 6.5V-14V. With different second required voltages, the fuel pump works at different fuel pump orders. The adjustment of the second required voltage can be adjusted directly through the voltage regulator, which is very convenient. It should be noted that the specific correspondence between the fuel pump order and the required voltage is not limited here and is related to the specific fuel pump. Exemplarily, the fuel pump order of the fuel pump can be the same as that of the first working condition, including the first-order fuel pump, the second-order fuel pump, the third-order fuel pump, the fourth-order fuel pump and the total sound pressure level. By adjusting the specific second required voltage, the fuel pump can operate at different oil orders, and then the current corresponding target noise and vibration data are collected, that is, the data acquisition device can collect the target noise and vibration data in the vehicle under the second working condition, so that the PC can obtain the noise data and vibration data of different oil orders under the second working condition. Finally, the operating frequency data corresponding to the second working condition and the target noise data are used to analyze the noise of the fuel system at different operating frequencies in the second working condition.

[0079] It can be seen that through this embodiment, the noise generated by the fuel system can be analyzed under normal operation of the automobile, and the fuel pump can be tested under normal operation of the actual vehicle. It can also be adjusted according to the different required voltages of the fuel pump. On this basis, the noise under different working conditions can be tested and evaluated, so that the fuel pump noise risk assessment and solution feasibility study can be effectively carried out, the cause analysis cycle of the noise in the car can be shortened, and the problem troubleshooting efficiency and evaluation accuracy can be greatly improved.

[0080] It should be noted that the normal operation of the engine in the embodiment of the present application may include engine idling operation or other non-idling operation conditions, which are not limited here. The above-mentioned range of required voltage is also only an exemplary description and does not impose any limitation on the embodiment of the present application. In addition, there may be other test conditions, which are not illustrated one by one here.

[0081] It should also be noted that when the engine is not working, the required voltage of the fuel pump can also be divided into two situations for testing, namely, the fuel pump works alone under the original vehicle required voltage, and the fuel pump works alone under a preset voltage (such as 0.3V) higher than the original required voltage. The original vehicle required voltage refers to the voltage input of the fuel pump originally configured by the fuel pump.

[0082] For example, the relevant data of the final test can be shown in the following table:

[0083]

[0084] The relevant values ​​in Table 1 above represent noise in decibels. For example, taking the corresponding column under the first order of the throttle as an example, 32.5 decibels means: the noise inside the car measured when the engine is working normally and the fuel pump is working at the first order of the throttle; 33.5 decibels means: the noise inside the car measured when the engine is not working and the fuel pump is working at the first order of the throttle (the fuel pump works alone under the vehicle demand voltage); 16.2 decibels means: the noise inside the car measured when the engine is not working and the fuel pump is working at the first order of the throttle (the fuel pump works alone at 0.3V higher than the original demand voltage). Among them, it is worth noting that the embodiment of the present application can further count the total sound pressure level of the noise inside the car under various working conditions. The total sound pressure level represents a noise value converted under a certain working frequency, and the noise value represents the overall noise situation. It can be seen from the above table that the noise when the fuel pump works alone or not alone under different working conditions is different. Through the embodiment of the present application, the noise data when the fuel pump works alone or not alone can be clearly obtained. As shown in the table above, it can be found that when the tested vehicle is working normally, the total noise inside the car is 40.7 decibels, while when the tested vehicle is not working, the corresponding noise inside the car (that is, the noise caused by the fuel pump and fuel pipeline) reaches 36.4 decibels, which contributes relatively large. Thus, the noise caused by the fuel pump and pipeline is known, which is convenient for subsequent other applications.

[0085] It should also be noted that through the above two working conditions, the noise inside the car when the oil pump works alone (at different required voltages) and the engine works normally can be processed by spectrum FFT analysis, and the processed data can be extracted and rendered into the same spectrum frame. From the obtained spectrum, the maximum noise point at different operating frequencies can be clearly obtained, especially the noise change when the operating frequency is switched.

[0086] In one embodiment, the method may also obtain subjective evaluation data of passengers in the vehicle under the first working condition and / or the second working condition, that is:

[0087] When the engine is not working, adjust the voltage regulator to the required voltage (such as 12.5V), let the test passengers sit in the front and rear passenger seats in the car, and subjectively evaluate the working noise of the fuel pump and its pipelines to obtain the corresponding subjective evaluation data under the first working condition.

[0088] After the engine is normally warmed up, the engine operates normally, the voltage regulator is adjusted to the required voltage (such as 12.5V), and test passengers are seated in the front and rear passenger seats in the vehicle to subjectively evaluate the working noise of the fuel pump and its pipelines, and the corresponding subjective evaluation data under the second working condition are obtained.

[0089] In this embodiment, by using the above-mentioned subjective evaluation data and comparing the subjective evaluation data, the humming sound of the oil pump can be more clearly perceived. The noise obtained through objective testing has reference significance, and the noise data of the fuel pump when working alone or in an actual vehicle can be evaluated. The noise of the fuel pump can be separated from the noise of the entire vehicle, so that the quality of the noise of the fuel system can be compared, evaluated and felt, so that customers or project teams can make a more accurate evaluation of the noise of the fuel system.

[0090] In summary, the embodiment of the present application provides a noise processing method and a noise testing system, which enables the fuel pump to work alone on a real vehicle, and can be adjusted according to the different required voltages of the fuel pump. On this basis, the noise of different working conditions can be tested and evaluated, so that the risk assessment of the fuel pump noise and the feasibility study of the scheme can be effectively carried out, the cause analysis cycle of the noise in the vehicle can be shortened, and the efficiency of the problem investigation and the accuracy of the evaluation can be greatly improved. It can separate the noise of the fuel pump and the fuel pipeline working alone in the whole vehicle state, characterize the actual contribution of the fuel system to the noise in the vehicle under the whole vehicle environment, and be used to quickly judge and evaluate whether the noise of the system exceeds the standard, and save the time of troubleshooting the noise problem of the whole vehicle, so that the efficiency of the noise troubleshooting of the fuel system can be improved rapidly. In addition, it can enable the evaluator to separate the oil pump noise from the noise in the vehicle at idle speed, so that the pros and cons of the noise of the fuel system can be compared, evaluated and felt, so that the customer or project team can make a more accurate evaluation of the noise of the fuel system, and establish a set of objective testing and subjective evaluation methods for accurately and effectively evaluating the impact of the fuel pump and its pipeline on the noise in the vehicle on the real vehicle. Moreover, the voltage of the voltage-stabilized power supply can be easily adjusted to allow the fuel pump to operate in different speed ranges, thereby evaluating the impact of the fuel pump on the noise inside the vehicle at different speeds.

[0091] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0092] C. Noise treatment device

[0093] In one embodiment, a noise processing device is provided, which corresponds one-to-one to the noise processing method in the above embodiment. Figure 4 As shown, the noise processing device includes an acquisition module 101 and a processing module 102. Each functional module is described in detail as follows:

[0094] An acquisition module 101 is used to acquire target noise and vibration data in the vehicle under test under preset working conditions, wherein the target noise and vibration data include target noise data generated by the fuel system and target vibration data generated by the fuel system;

[0095] The processing module 102 is used to analyze the target vibration data to obtain the operating frequency data of the fuel system; and analyze the noise of the fuel system in the vehicle at different operating frequencies through the frequency data and the target noise data.

[0096] For the specific definition of the noise processing device, please refer to the definition of the noise processing method above, which will not be repeated here. Each module in the above noise processing device can be implemented in whole or in part by software, hardware and a combination thereof. Each of the above modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0097] D. Computer equipment and computer storage media

[0098] In one embodiment, a computer device is provided. The computer device may be the PC mentioned above, and its internal structure diagram may be as shown in FIG. Figure 5 As shown. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The internal memory provides an environment for the operation of an operating system and a computer program in a non-volatile storage medium. The network interface of the computer device is used to communicate with an external data acquisition device through a network connection. When the computer program is executed by the processor, a noise processing method is implemented.

[0099] In one embodiment, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the following steps when executing the computer program:

[0100] Acquire target noise and vibration data in the vehicle under test under preset working conditions, wherein the target noise and vibration data include target noise data tested by the noise testing system and target vibration data tested by the noise testing system;

[0101] parsing the target vibration data to obtain operating frequency data of the fuel system;

[0102] The noise inside the vehicle of the fuel system at different operating frequencies is analyzed through the operating frequency data and the target noise data.

[0103] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0104] Acquire target noise and vibration data in the vehicle under test under preset working conditions, wherein the target noise and vibration data include target noise data tested by the noise testing system and target vibration data tested by the noise testing system;

[0105] parsing the target vibration data to obtain operating frequency data of the fuel system;

[0106] The noise inside the vehicle of the fuel system at different operating frequencies is analyzed through the operating frequency data and the target noise data.

[0107] It should be noted that for more functions or steps implemented by the above-mentioned computer device and computer storage medium, as well as the technical effects brought about, please refer to the description of the aforementioned method embodiment, and will not be repeated here.

[0108] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed 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, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0109] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example. In actual applications, the above-mentioned functions can be distributed and completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0110] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A noise testing system for a fuel system, characterized in that: The noise test system comprises a voltage source, a data acquisition device, a data processing device, a noise sensor, a first vibration sensor, and a second vibration sensor, wherein the noise sensor, the first vibration sensor, and the second vibration sensor are respectively connected to the data acquisition device, and the data acquisition device is connected to the data processing device. The noise sensor is used to be arranged in a vehicle under test, the first vibration sensor is used to be arranged on a fuel pump of the vehicle under test, and the second vibration sensor is used to be arranged on a fuel pipeline of a fuel tank in the vehicle under test, and the positive terminal and the negative terminal of the voltage source are respectively used to be connected to the positive terminal and the negative terminal of the fuel pump; Wherein, the noise testing system comprises a plurality of the noise sensors, and each seat of the tested vehicle is provided with a plurality of the noise sensors at a position close to the fuel tank; The data processing device is used to obtain target noise and vibration data in the vehicle under test under preset working conditions, wherein the target noise and vibration data include target noise data and target vibration data, wherein the target noise data is data detected by the noise sensor, and the target vibration data is data detected by the vibration sensor; The data processing device is also used to analyze the target vibration data to obtain the operating frequency data of the fuel system, and analyze the noise inside the vehicle of the fuel system at different operating frequencies through the operating frequency data and the target noise data.

2. The noise testing system according to claim 1, characterized in that: The noise testing system includes a plurality of the second vibration sensors. A plurality of installation positions are provided on the fuel pipeline. The plurality of the second vibration sensors are used to be arranged at the plurality of installation positions respectively.

3. The noise testing system according to claim 1, characterized in that: The first vibration sensor is used to be arranged on the end cover of the fuel pump.

4. The noise testing system according to claim 1, characterized in that: The noise testing system further comprises a measuring device, wherein a first measuring end and a second measuring end of the measuring device are used to be connected to a positive end and a negative end of the fuel pump respectively.

5. A noise processing method, characterized in that: The method comprises: Obtaining target noise and vibration data in the vehicle under test under preset working conditions, wherein the target noise and vibration data include target noise data tested by the noise testing system according to any one of claims 1 to 4, and target vibration data tested by the noise testing system, wherein the target noise data is data detected by a noise sensor, and the target vibration data is data detected by a vibration sensor; Analyzing the target vibration data to obtain operating frequency data of the fuel system; The noise inside the vehicle of the fuel system at different operating frequencies is analyzed through the operating frequency data and the target noise data.

6. The noise processing method according to claim 5, characterized in that: The preset working condition includes a first working condition, and the step of obtaining target noise and vibration data inside the vehicle under the preset working condition includes: The target noise and vibration data in the vehicle under the first working condition is obtained, wherein the first working condition is that the engine of the tested vehicle is not working and the working voltage of the fuel pump of the tested vehicle is adjusted to a first required voltage.

7. The noise processing method according to claim 5 or 6, characterized in that: The preset working condition includes a second working condition, and obtaining target noise and vibration data inside the vehicle under the preset working condition includes: The target noise and vibration data in the vehicle under the second operating condition is obtained, wherein the second operating condition is that the engine of the tested vehicle operates normally and the operating voltage of the fuel pump of the tested vehicle is adjusted to a second required voltage.

8. The noise processing method according to claim 7, characterized in that: After analyzing the noise of the fuel system in the vehicle at different operating frequencies through the operating frequency data and the target noise data, the method further includes: According to the noise inside the vehicle at different operating frequencies of the fuel system, a noise spectrum diagram corresponding to the preset operating condition is rendered.

9. A noise processing device, characterized in that: include: An acquisition module, used for acquiring target noise and vibration data in a vehicle under test under preset working conditions, wherein the target noise and vibration data include target noise data tested by the noise test system according to any one of claims 1 to 4, and target vibration data tested by the noise test system, wherein the target noise data is data detected by a noise sensor, and the target vibration data is data detected by a vibration sensor; The processing module is used to analyze the target vibration data to obtain the operating frequency data of the fuel system; and analyze the noise of the fuel system in the vehicle at different operating frequencies through the frequency data and the target noise data.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the noise processing method according to any one of claims 5 to 8 are implemented.

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