Lubricating oil filter, lubricating oil detection system, lubricating oil detection method and automobile

Abstract

The invention relates to the technical field of lubricating oil filters, and provides a lubricating oil filter, a lubricating oil detection system, a lubricating oil detection method and an automobile. The lubricating oil filter comprises a base platform, an oil inlet hole and an oil outlet hole are formed in the base platform, the oil inlet hole and the oil outlet hole are communicated with each other and penetrate through the base platform, a lubricating oil filter screen is arranged between the oil inlet hole and the oil outlet hole, an oil inlet cleanliness detection module is arranged in the oil inlet hole, and an oil outlet cleanliness detection module is arranged in the oil outlet hole. The oil inlet cleanliness detection module and the oil outlet cleanliness detection module are located on the two sides of a lubricating oil filter screen, and in the process that lubricating oil passes through the lubricating oil filter, the oil inlet cleanliness detection module and the oil outlet cleanliness detection module collect particle pollution data of the lubricating oil respectively. The lubricating oil filter has the function of collecting the particle pollution data of the lubricating oil.

Description

Technical Field

[0001] This application relates to the technical field of lubricating oil filters, and particularly to a lubricating oil filter, a lubricating oil detection system, a lubricating oil detection method, and an automobile. Background Art

[0002] During the process of automobile off-line, it is necessary to use bench test equipment to perform running-in tests on the transmission case. However, the existing bench test equipment cannot timely judge the running-in effect and the degree of oil pollution, resulting in some situations of insufficient or excessive running-in during off-line. If the running-in is insufficient, when delivered to the user, it will lead to a reduction in the service life of the lubricating oil, bringing a bad experience to the customer. If the running-in is excessive, it will cause waste of equipment, energy, and manpower in the factory. Summary of the Invention

[0003] In view of this, the embodiments of this application provide a lubricating oil filter, a lubricating oil detection system, a lubricating oil detection method, and an automobile to solve the problem that the existing lubricating oil filter does not have the function of collecting lubricating oil data.

[0004] In the first aspect of the embodiments of this application, a lubricating oil filter is provided, including an oil inlet hole and an oil outlet hole, the oil inlet hole and the oil outlet hole are interconnected, and a lubricating oil filter screen is provided between the oil inlet hole and the oil outlet hole. An oil inlet cleanliness detection module is provided in the oil inlet hole, and an oil outlet cleanliness detection module is provided in the oil outlet hole. The oil inlet cleanliness detection module and the oil outlet cleanliness detection module are located on both sides of the lubricating oil filter screen. During the process of lubricating oil passing through the lubricating oil filter, the oil inlet cleanliness detection module and the oil outlet cleanliness module respectively collect the particle pollution data of the passing lubricating oil.

[0005] In the second aspect of the embodiments of this application, a lubricating oil detection system is provided, including: the above-mentioned lubricating oil filter; a data processing device, connected to the lubricating oil filter, for obtaining the particle pollution data collected by the oil inlet cleanliness detection module and the oil outlet cleanliness module in the lubricating oil filter, and generating a lubricating oil pollution detection result of the lubricating oil passing through the lubricating oil filter based on the particle pollution data. The lubricating oil pollution detection result includes at least one of the number of impurity particles, the size of impurity particles, and the lubricating oil cleanliness level in the lubricating oil; a display device, connected to the data processing device, for displaying at least one of the data in the lubricating oil pollution detection result.

[0006] In the third aspect of the embodiments of the present application, a lubricating oil detection method is provided, which is applied to the above-mentioned lubricating oil cleanliness detection system. The lubricating oil detection method includes: obtaining particle contamination data, where the particle contamination data includes the first particle contamination data collected by the inlet oil cleanliness detection module and the second particle contamination data collected by the outlet oil cleanliness detection module. The first particle contamination data includes the number and size of impurity particles in the lubricating oil, and the second particle contamination data includes the number of impurity particles in the lubricating oil; determining a filter screen replacement reminder message based on the first particle contamination data and the second particle contamination data; and determining a lubricating oil replacement reminder message based on the first particle contamination data.

[0007] In the fourth aspect of the embodiments of the present application, an automobile is provided, which includes the above-mentioned lubricating oil filter.

[0008] The beneficial effects of the embodiments of the present application compared with the prior art are as follows: By sequentially arranging an inlet oil cleanliness detection module and an outlet oil cleanliness detection module at the inlet hole and outlet hole of the lubricating oil filter, the lubricating oil filter detects the passing lubricating oil to obtain the particle contamination data of the lubricating oil entering and leaving the lubricating oil filter, enabling the lubricating oil filter to have the function of collecting the particle contamination data of the lubricating oil, thereby providing a data basis for determining the filtering effect of the lubricating oil filter to guide the tester to compile an efficient and economical off-line running-in test condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0010] Figure 1 It is a schematic diagram of the application scenario of some embodiments of the present application;

[0011] Figure 2 It is a schematic structural diagram of a data processing device provided by some embodiments of the present application;

[0012] Figure 3 It is a schematic structural principle diagram of a lubricating oil filter provided by some embodiments of the present application;

[0013] Figure 4 It is a schematic working principle diagram of a laser sensor provided by some embodiments of the present application;

[0014] Figure 5 It is a cross-sectional view of another lubricating oil filter provided by some embodiments of the present application;

[0015] Figure 6It is a perspective view of another lubricating oil filter provided by some embodiments of the present application;

[0016] Figure 7 It is a schematic diagram of the principle of a lubricating oil detection system provided by some embodiments of the present application;

[0017] Figure 8 It is a schematic flowchart of a lubricating oil detection method provided by some embodiments of the present application;

[0018] Figure 9 It is a flowchart of a lubricating oil detection method in an application scenario provided by some embodiments of the present application.

[0019] Among them, each reference numeral in the figure: 1, lubricating oil filter; 11, oil inlet hole; 12, oil outlet hole; 13, oil inlet cleanliness detection module; 14, oil outlet cleanliness detection module; 131, 141, laser emitter; 132, 142, laser receiver; 133, 143, laser source; 134, 144, collimation system; 135, 145, Fourier transform lens; 136, 146, photoelectric sensor; 15, lubricating oil filter screen; 16, base; 17, end cover; 171, mounting hole; 18, terminal; 2, data processing device; 21, processor; 22, memory; 23, computer program; 3, target test device; 4, display device. Detailed implementation manners

[0020] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0021] Refer to Figure 1 , in the application scenario of some embodiments of the application, it includes a lubricating oil filter 1 and a data processing device 2. The lubricating oil filter 1 is used to be installed on a target test device 3 and connected to the data processing device 2. During the test of the target test device 3, the lubricating oil filter 1 is used to collect the particle contamination data of the lubricating oil before and after passing through the lubricating oil filter 1. The data processing device 2 is used to process the particle contamination data to obtain the lubricating oil contamination detection result, so as to provide data support for the test and guide the test work of the test personnel.

[0022] In this application scenario, in addition to having the basic lubricating oil filtering function, the lubricating oil filter 1 also has the function of collecting the particle contamination data of the lubricating oil before and after passing through the lubricating oil filter 1. Specifically, in combination with Figure 1For example, the lubricating oil filter 1 is provided with an oil inlet hole 11 and an oil outlet hole 12 that communicate with each other. And an oil inlet cleanliness detection module 13 is provided in the oil inlet hole 11, and an oil outlet cleanliness detection module 14 is provided in the oil outlet hole 12. During the process of lubricating oil passing through the lubricating oil filter 1, the lubricating oil flows in from the oil inlet hole 11 and then flows out from the oil outlet hole 12. The oil inlet cleanliness detection module 13 detects the flowing-in lubricating oil to obtain the first particle contamination data, and the oil outlet cleanliness detection module 14 detects the flowing-out lubricating oil to obtain the second particle contamination data. The data processing device 2 analyzes and processes the first particle contamination data and the second particle contamination data to obtain the lubricating oil contamination detection result, thereby realizing the functions of detecting the contamination degree of the filter screen of the lubricating oil filter 1 and detecting the cleanliness of the lubricating oil, and providing a basis for timely replacing the filter or the lubricating oil.

[0023] Further, the first particle contamination data and the second particle contamination data include at least one of data such as the number of impurity particles and the size of impurity particles. For example, the first particle contamination data includes the number of impurity particles and the size of impurity particles, and the second particle contamination data includes the number of impurity particles. The data processing device 2 calculates and processes the number of impurity particles and the size of impurity particles in the first particle contamination data to obtain the cleanliness level of the lubricating oil before filtration, thereby realizing the function of detecting the cleanliness of the lubricating oil. In addition, the data processing device 2 also monitors and processes the second particle contamination data. When the particle contamination data in the second particle contamination data is not zero, it means that impurities have passed through the lubricating oil filter 1, so a filter screen replacement reminder message is sent to realize the function of detecting the contamination degree of the filter screen of the lubricating oil filter 1. It should be noted that the lubricating oil contamination detection result includes the cleanliness level of the lubricating oil before filtration and the reminder message for replacing the lubricating oil filter 1. In the application, the lubricating oil contamination detection result is displayed to facilitate users or testers to timely understand the working conditions of the lubricating oil filter 1 and the lubricating oil.

[0024] The data processing device 2 is used to obtain the particle contamination data collected by the lubricating oil filter 1 and process the particle contamination data to obtain the lubricating oil contamination detection result. In this application scenario, please refer to Figure 2 , the data processing device 2 at least includes a processor 21, a memory 22, and a computer program 23 stored in the memory 22 and executable on the processor 21. When the processor 21 executes the computer program 23, the functions of detecting the contamination degree of the filter screen of the lubricating oil filter 1 and detecting the cleanliness of the lubricating oil are realized.

[0025] The processor 21 can be a Central Processing Unit (CPU), or other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0026] The memory 22 can be an internal storage unit of the data processing device 2. For example, the hard disk or memory of the data processing device 2. The memory 22 can also be an external storage device of the data processing device 2, such as a plug-in hard disk equipped on the data processing device 2, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, etc. The memory 22 can also include both the internal storage unit of the data processing device 2 and the external storage device. The memory 22 is used to store computer programs and other programs and data required by the data processing device 2.

[0027] The computer program code can be in the form of source code, object code, executable files, or some intermediate forms, etc. The computer-readable medium can include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

[0028] In practical applications, the data processing device 2 can be an electronic device such as a computer, a vehicle controller, and a cloud server, etc. For example, in the test stage, the data processing device 2 can be selected as a computer.

[0029] It is worth mentioning that the data processing device 2 can include but is not limited to the processor 21 and the memory 22. Those skilled in the art can understand that Figure 2 This is only an example of the data processing device 2, and does not constitute a limitation on the data processing device 2. It can include more or fewer components than shown in the figure, or different components.

[0030] The target test device 3 is a device that needs to operate in a lubricating oil environment and is equipped with at least one lubricating oil filter 1. Generally, the target test device 3 is provided with a lubricating oil flow channel, and the lubricating oil filter 1 is arranged in the flow channel to filter the flowing lubricating oil. In this application scenario, the target test device can be selected as a transmission case, which is used in an automobile. When the automobile comes off the production line, it is necessary to conduct a running-in test on the transmission case. Then, the particle contamination data of the lubricating oil before and after flowing through the lubricating oil filter 1 installed on the transmission case is collected, and the data processing device 2 processes the particle contamination data to obtain the lubricating oil contamination detection result, so as to determine the cleanliness of the lubricating oil and the working state of the lubricating oil filter 1, thereby providing data support for the test and guiding the test personnel to compile an efficient and economical running-in working condition.

[0031] Since the current bench test device cannot effectively judge the running-in effect of the transmission case and the degree of oil product contamination, problems such as insufficient or excessive running-in may occur when the product comes off the production line. Insufficient running-in will affect the service life of the lubricating oil and reduce the user experience; excessive running-in will waste factory resources. Therefore, the existing lubricating oil filter 1 of the transmission case lacks the function of data collection and cannot meet the requirements of the running-in test stage.

[0032] In view of the above problems, please refer to Figure 3 , in some embodiments of the present application, a lubricating oil filter 1 is provided, which includes an oil inlet hole 11 and an oil outlet hole 12. The oil inlet hole 11 and the oil outlet hole 12 are communicated with each other. A lubricating oil filter screen 15 is arranged between the oil inlet hole 11 and the oil outlet hole 12. An oil inlet cleanliness detection module 13 is arranged in the oil inlet hole 11, and an oil outlet cleanliness detection module 14 is arranged in the oil outlet hole 12. The oil inlet cleanliness detection module 13 and the oil outlet cleanliness detection module 14 are located on both sides of the lubricating oil filter screen 15. During the process of the lubricating oil passing through the lubricating oil filter 1, the oil inlet cleanliness detection module 13 and the oil outlet cleanliness module respectively collect the particle contamination data of the passing lubricating oil and output it.

[0033] Specifically, in combination with Figure 3 , the lubricating oil filter 1 has an oil inlet hole 11 and an oil outlet hole 12. A lubricating oil filter screen 15 is arranged between the oil inlet hole 11 and the oil outlet hole 12. The lubricating oil enters from the oil inlet hole 11 and then flows through the lubricating oil filter screen 15, and the impurity particles therein are captured. The filtered lubricating oil flows out from the oil outlet hole 12 to obtain clean lubricating oil.

[0034] During this process, the oil inlet cleanliness detection module 13 located on one side of the lubricating oil filter screen 15 detects the flowing-in lubricating oil to obtain the first particle contamination data; at the same time, the oil outlet cleanliness detection module 14 located on the other side of the lubricating oil filter screen 15 detects the flowing-out lubricating oil to obtain the second particle contamination data, where the particle contamination data includes the first particle contamination data and the second particle contamination data.

[0035] In the embodiments of the present application, by sequentially arranging an inlet cleanliness detection module 13 and an outlet cleanliness detection module 14 at the inlet hole 11 and the outlet hole 12 of the lubricating oil filter 1, the passing lubricating oil is detected to obtain the particle contamination data of the lubricating oil entering and leaving the lubricating oil filter 1, enabling the lubricating oil filter 1 to have the function of collecting the particle contamination data of the lubricating oil, thereby providing a data basis for determining the filtering effect of the lubricating oil filter 1. For example, in the off-line running-in test stage, it can provide data support for the test to guide the testers to compile an efficient and economical running-in working condition.

[0036] In practical applications, the inlet cleanliness detection module 13 and the outlet cleanliness detection module 14 can be the same sensor or different sensors. If the inlet cleanliness detection module 13 and the outlet cleanliness detection module 14 are the same sensor, it can be used to collect the same particle contamination data. For example, both the inlet cleanliness detection module 13 and the outlet cleanliness detection module 14 are laser sensors. The laser beam irradiates the oil fluid, and based on the scattering characteristics of the impurity particles on the laser, the size and quantity of the impurity particles in the oil fluid are determined. That is, the laser sensor can detect the passing lubricating oil to obtain two types of particle contamination data: the quantity and size of the impurity particles in the lubricating oil. If the inlet cleanliness detection module 13 and the outlet cleanliness detection module 14 are different sensors, they can also be used to collect the same particle contamination data. For example, the inlet cleanliness detection module 13 is a laser sensor, and the outlet cleanliness detection module 14 is an ultrasonic sensor. Both the laser sensor and the ultrasonic sensor can detect the quantity of the impurity particles in the lubricating oil. The principle of the ultrasonic sensor for detecting the quantity of the impurity particles is as follows: by monitoring the attenuation and scattering intensity of the ultrasonic signal, a stronger signal attenuation means more impurity particles are present, and vice versa, thus the ultrasonic sensor can evaluate the overall concentration of the impurity particles in the oil fluid to determine the quantity of the impurity particles.

[0037] In some embodiments, the inlet cleanliness detection module 13 and the outlet cleanliness module respectively include any one of an optical sensor, a conductivity sensor, and an ultrasonic sensor.

[0038] The optical sensor emits light through the lubricating oil from a light source. The clean lubricating oil has a higher light transmittance, while the lubricating oil containing impurities will reduce the transmittance (due to light absorption or scattering caused by impurity particles). The receiver of the optical sensor measures the intensity of the transmitted light to determine the quantity of the impurity particles in the lubricating oil, and the cleanliness of the lubricating oil can also be evaluated based on the quantity of the impurity particles in the lubricating oil. In this embodiment, the type of the optical sensor is not unique and includes, but is not limited to, a laser sensor.

[0039] The conductivity sensor detects the number of impurities by measuring the change in the conductivity of the lubricating oil. The lubricating oil itself is an insulator, and conductive impurity particles will increase the conductivity. The number of impurity particles is positively correlated with the conductivity. Specifically, the sensor measures the ratio of current change to voltage change (conductivity). When the impurity concentration increases, the conductivity increases, that is, the more the number of impurity particles. Compared with the optical sensor, the conductivity sensor usually cannot directly detect the size of the particles because it provides the overall conductivity data rather than the characteristics of a single particle. Therefore, in practical applications, the oil outlet cleanliness module can be selected as a conductivity sensor to detect the number of impurity particles in the outflowing lubricating oil.

[0040] The ultrasonic sensor analyzes the concentration of impurities and the physical characteristics of the particles by measuring the propagation speed, reflection intensity, and attenuation characteristics of ultrasonic waves in the lubricating oil. The number of impurity particles and the size of the impurity particles will change the scattering and attenuation patterns of the ultrasonic signal. If detecting the number of impurity particles, by measuring the signal attenuation and scattering intensity, the impurity concentration is evaluated. The higher the concentration (i.e., the more the number of impurity particles), the more obvious the signal attenuation. If detecting the size of the impurity particles, the particle size affects the scattering characteristics of ultrasonic waves (such as the reflection angle and signal intensity). The ultrasonic sensor determines the size range of the impurity particles by analyzing the scattering pattern, thereby determining the size of the impurity particles.

[0041] Preferably, in the actual application scenario, both the oil inlet cleanliness detection module 13 and the oil outlet cleanliness module are laser sensors; the laser sensor includes a laser emitter and a laser receiver, and the laser emitter and the laser receiver are fixedly connected at intervals and facing each other on the inner walls of the oil inlet hole 11 and the oil outlet hole 12.

[0042] Please refer to Figure 4, the working principle of the laser sensor for detecting lubricating oil to obtain particle contamination data is as follows: The laser emitters 131 and 141 include laser sources 133 and 143 and collimation systems 134 and 144, and the laser receivers 132 and 142 include Fourier transform lenses 135 and 145 and photoelectric sensors 136 and 146. The laser sources 133 and 143 are used to emit monochromatic laser light. When the lubricating oil containing impurity particles flows through the gap between the laser emitters 131 and 141 and the laser receivers 132 and 142, the particle impurities in the lubricating oil cause the parallel light to diffract. The diffracted light passes through the Fourier transform lenses 135 and 145 and is focused on the photoelectric sensors 136 and 146. The photoelectric sensors 136 and 146 are composed of a series of communication annuli, and each annulus is an independent detector that can convert the received scattered light signal into an electrical signal. The electrical signal is amplified by the signal processor and subjected to analog-to-digital conversion to obtain a digital signal. After the processor processes this digital signal, particle contamination data is obtained. It can be understood that this processor can be the processor in the data processing device 2 or the processor integrated in the laser sensor, that is, the laser sensor integrates an A / D module and a processor for collecting and outputting particle contamination data.

[0043] By analyzing and processing the particle contamination data collected by the laser sensor, functions such as comparing the cleanliness before and after lubricating oil filtration, monitoring the lubricating oil filter screen 15, and the change trend of lubricating oil cleanliness can be further realized.

[0044] For example, in an actual application scenario, the principle of determining the cleanliness of lubricating oil based on particle contamination data is as follows:

[0045] Taking the inlet oil cleanliness detection module 13 as a laser sensor as an example, some impurity particles are randomly distributed in the lubricating oil flowing through the gap between the laser emitters 131 and 141 and the laser receivers 132 and 142 of a group of laser sensors. Integrating the scattered light intensity of the impurity particles irradiated on the photoelectric sensors 136 and 146 can calculate the scattered light energy on the detection rings of the photoelectric sensors 136 and 146. Since the light source is monochromatic laser light, according to Mie scattering theory, its scattered light intensity is:

[0046]

[0047] Among them, λ represents the wavelength of the incident light, I 0 represents the intensity of the incident light, r represents the distance from the impurity to the photoelectric sensors 136 and 146, i 1 , i 2 represents the scattering intensity function, and θ represents the scattering angle.

[0048] Integrating the photoelectric sensors 136 and 146 gives:

[0049]

[0050] Among them, θ 1 represents the starting scattering angle of a certain ring of the photoelectric sensors 136 and 146, and θ n represents the ending scattering angle of a certain ring of the photoelectric sensors 136 and 146.

[0051] When N impurity particles with a diameter of d flow through the effective area of the sensor, the energy received by the photoelectric sensors 136 and 146 with a scattering angle of θ is the sum of the scattered light energies of the N impurity particles, as follows:

[0052]

[0053]

[0054] W represents the mass of the particles with a diameter of d. When there are particles with various diameters in the lubricating oil, there is:

[0055]

[0056] Perform normalization processing on the data, and let Equation 5 is abbreviated as:

[0057] E = TW...(6);

[0058] Among them, the calculation method of T is as follows:

[0059]

[0060] T represents the total light energy on the surfaces of the photoelectric sensors 136 and 146 with a diameter of d and a scattering angle of θ. By using the scattered light energy distribution E detected by the photoelectric sensors 136 and 146, the size distribution of the impurity particles, that is, the size of the quality particles, can be obtained through Equation (6).

[0061] In practice, the cleanliness before and after filtering of the lubricating oil can be obtained by analyzing and processing the particle contamination data collected by the laser sensor, and displayed, so that the user can intuitively understand the cleanliness of the lubricating oil.

[0062] In this embodiment, the particle contamination data of the lubricating oil is collected by the laser sensor, providing data support for subsequent analysis of the lubricating oil or monitoring of the lubricating oil filter 1, enabling the user to understand the working conditions of the lubricating oil and the lubricating oil filter 1 in a timely manner, so as to replace the filter or the lubricating oil in a timely manner. For example, in the case where the target test equipment is a transmission case, during the running-in test, the particle contamination data provided by the lubricating oil filter 1 can provide a basis for judging the filtering effect of the filter, and further guide the R & D personnel to improve the design and provide data support for the design and selection of the filter.

[0063] In practice, the shape and structure of the lubricating oil filter 1 are not unique. Since the lubricating oil filter 1 in the embodiments of the present application has the function of collecting particulate contamination data, on the basis of ensuring lubricating oil filtration, how to make the lubricating oil filter 1 suitable for installation on the target device and output particulate contamination data is a technical problem encountered in the actual R & D process.

[0064] In some embodiments, in view of the above problems, please refer to Figure 5 and Figure 6 , the lubricating oil filter 1 further includes a base 16, an end cap 17 and a terminal 18. The base 16 is connected to the first side of the end cap 17, and the oil inlet hole 11 and the oil outlet hole 12 are provided on the base 16. The oil inlet hole 11 and the oil outlet hole 12 communicate with each other and penetrate through the base 16. At least one mounting hole 171 is provided on the end cap 17. The terminal 18 is fixedly connected to the second side of the end cap 17 and is respectively connected to the inlet oil cleanliness detection module 13 and the outlet oil cleanliness detection module 14, where the first side and the second side are the two sides of the end cap 17 in the thickness direction.

[0065] The end cap 17 is used to connect and fix the base 16 and the terminal 18, and provides an installation position for the lubricating oil filter 1. In this embodiment, the end cap 17 can be selected as a disc. In Figure 5 , the first side of the end cap 17 is above the disc and is used to fix the terminal 18; the second side of the end cap 17 is below the disc and is used to fix the base 16.

[0066] The mounting hole 171 can be selected as a bolt hole, and the number is multiple. For example, in Figure 6 , there are 4 mounting holes 171 provided on the end cap 17, which are circumferentially symmetrically arranged on the end cap 17. During installation, bolts can be used to fixedly connect the end cap 17 to the target test device 3 to install the lubricating oil filter 1 on the target test device 3.

[0067] The terminal 18 is a data interface and is connected to the inlet oil cleanliness detection module 13 and the outlet oil cleanliness detection module 14 provided in the oil inlet hole 11 and the oil outlet hole 12. After the lubricating oil filter 1 is installed on the target test device 3, as long as the corresponding data connectors are connected to the terminal 18, the collected particulate contamination data can be transmitted, with a simple structure and being conducive to installation and data transmission.

[0068] In practice, the terminal block 18 includes, but is not limited to, a power terminal and a signal output terminal. The power terminal and the signal output terminal can be independent terminal blocks, or can be a single terminal block integrating the power terminal and the signal output terminal. Among them, the power terminal has a positive pole and a negative pole, and the signal output terminal includes, but is not limited to, any one of RS232 (abbreviation of Recommended Standard 232, which can be translated as: serial communication interface standard), RS485 (abbreviation of Recommended Standard 485, which can be translated as: differential serial communication standard), CAN (abbreviation of Controller Area Network, which can be translated as: controller area network), EtherCAT (abbreviation of Ethernet for Control Automation Technology, which can be translated as: Ethernet for control automation technology), PROFINET (abbreviation of Process Field Network, which can be translated as: process field network), and RJ45 interface (abbreviation of Registered Jack 45, which can be translated as: Ethernet interface).

[0069] Further, in some embodiments, the lubricating oil filter 1 includes a base 16. The shape of the base 16 can be selected as a cylinder. The oil inlet hole 11 and the oil outlet hole 12 are arranged on the side surface of the cylinder. The oil inlet hole 11 and the oil outlet hole 12 communicate with each other and penetrate through the base 16. In practical applications, the number of the oil inlet hole 11 and the oil outlet hole 12 can be one or multiple, and the shapes are not unique, including but not limited to round holes, square holes, etc. For example, in this embodiment, the oil inlet hole 11 and the oil outlet hole 12 are preferably round holes.

[0070] In practice, since the current bench test equipment cannot effectively judge the running-in effect of the transmission case and the degree of oil pollution, problems such as insufficient or excessive running-in may occur during off-line. Insufficient running-in will affect the lubricating oil life and reduce the user experience; excessive running-in will waste factory resources. Therefore, how to make the running-in test of the transmission case more efficient and economical is a technical problem that those skilled in the art want to solve currently.

[0071] In view of the above problems, combined with Figure 7For some embodiments of the present application, a lubricating oil detection system is provided, including a lubricating oil filter 1 and a data processing device 2. The lubricating oil filter 1 is used to collect particulate contamination data of the lubricating oil before and after filtration. The data processing device 2 is connected to the lubricating oil filter 1 and is used for the lubricating oil inlet cleanliness detection module 13 of the lubricating oil filter 1 to generate a lubricating oil pollution detection result before and after lubricating oil filtration. The lubricating oil pollution detection result includes at least one of the number of impurity particles, the size of impurity particles, and the lubricating oil cleanliness level in the lubricating oil. A display device 4 is connected to the data processing device 2 and is used to display the content of the lubricating oil pollution detection result.

[0072] For the specific implementation manner of the lubricating oil filter 1, reference can be made to Figure 1 the description of the application scenario shown, and for the specific implementation manner of the data processing device 2, reference can be made to Figure 2 the description of the embodiment shown, which will not be elaborated here.

[0073] When the data processing device 2 obtains the number of impurity particles and the size of impurity particles in the lubricating oil before and after lubricating oil filtration, the cleanliness of the lubricating oil can be calculated and displayed, enabling the user to timely understand the cleanliness of the lubricating oil before and after filtration. The specific calculation method can refer to the above embodiments and will not be elaborated here.

[0074] The display device 4 can be integrated with the data processing device 2. For example, the display device is the display screen of the data processing device 2. Alternatively, the display device and the data processing device 2 can also be independent of each other. For example, the data processing device 2 is the vehicle controller of an automobile, and the display device is the display screen of an external computing device. During the test, the external computing device can be communicatively connected to the automobile, and the external computing device reads the lubricating oil pollution detection result processed by the vehicle controller and displays it, so that the tester can view the content of the lubricating oil pollution detection result on the external computing device.

[0075] In practice, when the target test device 3 is a transmission case, if the transmission case is in the off-line running-in test stage, the tester can use a computer as the data processing device 2 to connect with the lubricating oil filter 1 to establish a lubricating oil detection system. During the test, the lubricating oil filter 1 collects the particle contamination data before and after lubricating oil filtration, and then the computer analyzes and processes the particle contamination data to obtain the lubricating oil contamination detection results before and after lubricating oil filtration, providing data support for the off-line running-in test and guiding the tester to compile an efficient and economical running-in condition. In addition, if the transmission case is in the stage of being put into use, the lubricating oil filter 1 is connected to the vehicle controller to establish a lubricating oil detection system. During use, the lubricating oil filter 1 collects the particle contamination data before and after lubricating oil filtration, and the vehicle controller calculates and processes the particle contamination data to obtain the cleanliness before and after lubricating oil filtration, and can display it on the central control display screen of the vehicle, enabling the user to timely understand the state of the lubricating oil in the transmission case, so as to provide a basis for the user to replace the filter or lubricating oil in a timely manner. Among them, the lubricating oil contamination detection results include the cleanliness before and after lubricating oil filtration.

[0076] In practice, the lubricating oil filter 1 only has the function of lubricating oil filtration. During use, the user cannot monitor the quality and cleanliness of the lubricating oil in real time, nor can they timely judge the degree of contamination of the filter to replace the lubricating oil and the filter in a timely manner, which easily leads to improper use of the lubricating oil, affects the service life of the transmission case, and even causes the transmission case to malfunction.

[0077] In view of the above problems, referring to Figure 8 , in some embodiments of the present application, a lubricating oil detection method is provided, which is applied to the above lubricating oil cleanliness detection system. The lubricating oil detection method includes the steps of:

[0078] S1: Obtain particle contamination data, where the particle contamination data includes the first particle contamination data collected by the inlet oil cleanliness detection module 13 and the second particle contamination data collected by the outlet oil cleanliness detection module 14. The first particle contamination data includes the number and size of impurity particles in the lubricating oil, and the second particle contamination data includes the number of impurity particles in the lubricating oil;

[0079] S2: Determine the filter screen replacement reminder information based on the first particle contamination data and the second particle contamination data;

[0080] S3: Determine the lubricating oil replacement reminder information based on the first particle contamination data.

[0081] The above lubricating oil detection method can be executed by the data processing device 2 in the lubricating oil cleanliness detection system. In this embodiment, the filter replacement reminder information and the lubricating oil replacement reminder information can be displayed in at least one of the forms of text, voice, video, and light, so as to facilitate the user to timely understand the usage situation of the lubricating oil and provide a basis for the user to replace the filter or the lubricating oil in a timely manner.

[0082] In the above step S1, the inlet oil cleanliness detection module 13 collects the particle contamination data before the lubricating oil is filtered, that is, the first particle contamination data. At the same time, the outlet oil cleanliness detection module 14 collects the particle contamination data after the lubricating oil is filtered, that is, the second particle contamination data. In this embodiment, the lubricating oil filter 1 can periodically send the particle contamination data to the data processing device 2, or the data processing device 2 can also periodically read the particle contamination data for the data processing device 2 to process the particle contamination data.

[0083] In the above step S2, the data processing device 2 processes the first particle contamination data and the second particle contamination data to monitor the situation before and after the lubricating oil is filtered, so as to determine whether the lubricating oil filter 1 needs to be replaced. In the case of determining that the lubricating oil filter 1 needs to be replaced, a filter replacement reminder information is generated to implement the function of detecting the pollution degree of the filter screen of the lubricating oil filter 1, prompting the user to replace the lubricating oil filter 1 in a timely manner, thereby improving the service life of the transmission case.

[0084] In the above step S3, the data processing device 2 processes the first particle contamination data to monitor the situation before the lubricating oil is filtered, so as to determine whether the lubricating oil needs to be replaced. In the case of determining that the lubricating oil needs to be replaced, a lubricating oil replacement reminder information is generated to implement the function of detecting the cleanliness of the lubricating oil, prompting the user to replace the lubricating oil in a timely manner, thereby ensuring the quality of the lubricating oil in the transmission case and improving the service life.

[0085] In this embodiment, by obtaining the first particle contamination data collected by the inlet oil cleanliness detection module 13 and the second particle contamination data collected by the outlet oil cleanliness detection module 14 in the lubricating oil filter 1, and then based on the first particle contamination data and the second particle contamination data, determining the filter replacement reminder information to implement the function of detecting the pollution degree of the filter screen of the lubricating oil filter 1, and based on the first particle contamination data, determining the lubricating oil replacement reminder information to implement the function of detecting the cleanliness of the lubricating oil, thereby providing a basis for timely replacing the lubricating oil filter 1 or the lubricating oil, ensuring that the transmission case operates in a healthy environment, and being conducive to improving the service life of the product.

[0086] During the use of the lubricating oil filter 1, generally, the replacement of the lubricating oil filter 1 is based on experience. If the lubricating oil filter 1 fails, it will not be detected in time, thus missing the best replacement time, affecting the operating environment of the transmission case, and causing the transmission case to malfunction or even be damaged. Therefore, how to notify the user in time when the lubricating oil filter 1 fails is a technical problem existing in the current use of lubricating oil filtration products.

[0087] In some embodiments, in the above step S2, based on the first particle contamination data and the second particle contamination data, determining the filter screen replacement reminder information includes: generating the filter screen replacement reminder information when the number of impurity particles in the first particle contamination data and the number of impurity particles in the second particle contamination data are both non-zero.

[0088] The number of impurity particles being zero means that there are no impurity particles in the lubricating oil, and at this time, the cleanliness of the lubricating oil is higher. The number of impurity particles being non-zero means that there are impurity particles in the lubricating oil, and the larger the number of impurity particles, the more impurity particles there are in the lubricating oil, and at this time, the cleanliness of the lubricating oil is lower. In this embodiment, the first particle contamination data is the data collected before the lubricating oil is filtered. If the number of impurity particles before the lubricating oil is filtered is non-zero, it means that the lubricating oil flowing to the lubricating oil filter screen 15 contains impurity particles; while the second particle contamination data is the data collected after the lubricating oil is filtered. If the number of impurity particles after the lubricating oil is filtered is non-zero, it means that the lubricating oil filtered by the lubricating oil filter screen 15 contains impurity particles. At this time, it means that the lubricating oil filter screen 15 fails to filter effectively and needs to be replaced in time. Therefore, the filter screen replacement reminder information is generated to prompt the user to replace the lubricating oil filter 1 in time.

[0089] For example, in some application scenarios, combined with Figure 9 For example, first, judge whether the number of impurity particles in the first particle contamination data is zero. When the number of impurity particles in the first particle contamination data is zero, continuously judge whether the number of impurity particles in the first particle contamination data is zero; when the number of impurity particles in the first particle contamination data is non-zero, then judge whether the number of impurity particles in the second particle contamination data is zero. When the number of impurity particles in the second particle contamination data is non-zero, generate the filter screen replacement reminder information and notify the user to replace the lubricating oil filter 1 in time.

[0090] In this embodiment, the number of impurity particles in the first particle contamination data and the number of impurity particles in the second particle contamination data are processed to determine whether the lubricating oil filter screen 15 is effective. When the lubricating oil filter screen 15 fails, the filter screen replacement reminder information is generated to prompt the user to replace the lubricating oil filter 1 in time.

[0091] Furthermore, since the existing lubricating oil filter 1 does not have a data acquisition function, during the running-in test stage of the transmission case off the production line, the lubricating oil filter 1 and the bench test equipment cannot timely judge the running-in effect and the degree of oil pollution. For example, if the running-in is insufficient, it will cause the reduction of the lubricating oil life during the user's use, bringing a bad experience to the customer. If the running-in is excessive, it will result in waste of equipment, energy and manpower for the factory. Therefore, how to efficiently and accurately detect the running-in degree during the running-in test stage is a technical problem encountered in the current next running-in test stage.

[0092] In view of the above technical problems, in some embodiments, in the above step S2, based on the first particle pollution data and the second particle pollution data, determining the filter screen replacement reminder information further includes: when the number of impurity particles in the first particle pollution data is not zero, determining the cleanliness level of the lubricating oil based on the number of impurity particles and the size of the impurity particles in the first particle pollution data, where the lubricating oil includes multiple cleanliness levels; at the same time, in the above step S3, based on the first particle pollution data, determining the lubricating oil replacement reminder information includes: when the cleanliness level of the lubricating oil rises and rises to one of the unchanged cleanliness levels, generating the lubricating oil replacement reminder information.

[0093] The cleanliness level is a discretized classification of the cleanliness based on the detection results of the number of impurity particles and the size of the impurity particles in the lubricating oil before filtration, so as to quantitatively evaluate. In this embodiment, the cleanliness level is associated with the number of impurity particles and the size of the impurity particles in the first particle pollution data.

[0094] Preferably, the cleanliness level is equal to the weighted value of the number of impurity particles and the size of the impurity particles in the first particle pollution data. Specifically, it is assumed that the number of particles is represented by X 1 and the average size of the target particles is represented by X 2 , then the cleanliness level can be calculated according to the following formula:

[0095] Y = a*X 1 + b*X 2 ……(8);

[0096] where a and b respectively represent the weight coefficients, reflecting the relative influence of the number of impurity particles and the size of the impurity particles on the cleanliness. In practical applications, the value of a can be obtained through experimental data evaluation based on the sensitivity of the equipment to the number of impurities; b can be obtained by referring to the suggestions of the equipment manufacturer or historical failure data. Preferably, the values of a and b can be fitted by regression analysis using actual measurement data to make the calculation result more in line with the actual situation. In addition, X 1 is the total number of particles per unit volume, and X 2 is the average size of the particles, which can be obtained by analyzing and processing the particle pollution data collected by the lubricating oil filter 1.

[0097] Considering that the cleanliness level Y is determined by two index parameters, to balance the 1 and 2 numerical ranges of

[0098]

[0099] Y = a*X 1 '+ b*X 2 '...(10);

[0100] Furthermore, assume that the cleanliness level Y of the lubricating oil is divided into 10 levels, and the intervals are as shown in Table 1 below:

[0101] Cleanliness level Range (Y) 1 0<Y<0.1 2 0.1<￥<0.2 3 0.2<Y<0.3 4 0.3<Y<0.4 5 0.4<Y<0.5 6 0.5<￥<0.6 7 0.6<￥<0.7 8 0.7<Y<0.8 9 0.8<￥<0.9 10 0.9<Y<1

[0102] Table 1 is the mapping table of cleanliness level and mapped Y value interval (the mapped level interval after normalization)

[0103] Exemplarily, 1 X 2 = 800,

[0104] X 1 and 2 are normalized to:

[0105]

[0106] According to the above formula (10):

[0107] Y = 0.6*0.8 + 0.4*0.5 = 0.48 + 0.2 = 0.68;

[0108] Combined with Table 1, it can be seen that 0.6 ≤ Y < 0.7, corresponding to the cleanliness level of 7. Thus, through the number of impurity particles and the size of impurity particles in the first particle contamination data, the cleanliness level of the lubricating oil can be quickly determined.

[0109] Furthermore, at the initial stage of the offline running-in test, there are fewer impurity particles in the lubricating oil at the oil inlet hole 11. As the running-in test progresses, the impurity particles in the lubricating oil will gradually increase, and then the cleanliness level before lubricating oil filtration will gradually rise. At the end of the offline running-in test, the running-in is completed, and the generated impurity particles will decrease. At this time, the cleanliness level before lubricating oil filtration will remain stable. Therefore, when the cleanliness level of the lubricating oil rises and stabilizes at one of the cleanliness levels without change, it means that the running-in is completed, and then a lubricating oil replacement reminder message is generated to remind the user to change the engine oil, thereby realizing the function of lubricating oil cleanliness detection.

[0110] For example, in some application scenarios of offline running-in tests, combined with Figure 9 For instance, when it is determined that the number of impurity particles in the first particle contamination data is not zero, then it is further determined whether the number of impurity particles in the second particle contamination data is zero. If the number of impurity particles in the second particle contamination data is zero, it is monitored that the cleanliness level of the lubricating oil before filtration gradually rises and then becomes stable during the running-in test. If so, a lubricating oil replacement reminder message is generated. If not, it continues to monitor that the cleanliness level of the lubricating oil before filtration gradually rises and then becomes stable during the running-in test.

[0111] In this embodiment, the number of impurity particles in the first particle contamination data and the number of impurity particles in the second particle contamination data are processed to determine whether the lubricating oil filter 15 is effective. When the lubricating oil filter 15 fails, a filter replacement reminder message is generated to prompt the user to replace the lubricating oil filter 1 in a timely manner.

[0112] Any combination of the above optional technical solutions can form an optional embodiment of the present application, which will not be elaborated herein one by one.

[0113] In some embodiments, an automobile is further provided, which includes the above-mentioned lubricating oil filter 1.

[0114] In practical applications, the lubricating oil filter 1 is installed in target test equipment 3 such as the transmission case and engine of the automobile to collect particle contamination data such as the cleanliness or cleanliness level of the lubricating oil before and after filtration, and then it is displayed on the central control display screen of the automobile so that the user can timely understand the status of the lubricating oil and the lubricating oil filter 1, thereby providing a basis for timely replacing the lubricating oil or the lubricating oil filter 1 and ensuring the operation safety of related equipment in the automobile.

[0115] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate 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 lubricating oil filter, characterized in that: It includes an oil inlet hole and an oil outlet hole, the oil inlet hole and the oil outlet hole are connected to each other, and a lubricating oil filter is arranged between the oil inlet hole and the oil outlet hole, an oil inlet cleanliness detection module is arranged in the oil inlet hole, and an oil outlet cleanliness detection module is arranged in the oil outlet hole, the oil inlet cleanliness detection module and the oil outlet cleanliness detection module are located on both sides of the lubricating oil filter, and in the process of the lubricating oil passing through the lubricating oil filter, the oil inlet cleanliness detection module and the oil outlet cleanliness module respectively collect particle contamination data passing through the lubricating oil.

2. The lubricating oil filter according to claim 1, characterized in that: The inlet oil cleanliness detection module and the outlet oil cleanliness detection module respectively include any one of a photoelectric sensor, a conductivity sensor and an ultrasonic sensor.

3. The lubricating oil filter according to claim 1, characterized in that: The oil inlet cleanliness detection module and the oil outlet cleanliness detection module are both laser sensors; The laser sensor comprises a laser transmitter and a laser receiver, and the laser transmitter and the laser receiver are fixedly connected to the inner walls of the oil inlet and the oil outlet at intervals and facing each other.

4. The lubricating oil filter according to any one of claims 1 to 3, characterized in that: It also includes a base, an end cover and a wiring terminal, wherein the base is connected to a first side of the end cover, the oil inlet hole and the oil outlet hole are arranged on the base, the oil inlet hole and the oil outlet hole pass through the base, and at least one mounting hole is provided on the end cover, the wiring terminal is fixedly connected to a second side of the end cover, and is respectively connected to the oil inlet cleanliness detection module and the oil outlet cleanliness detection module, wherein the first side and the second side are two sides of the end cover in the thickness direction.

5. The lubricating oil filter according to claim 4, characterized in that: The end cover is a disc; the base is a cylinder, and the oil inlet and outlet holes are arranged on the side of the cylinder.

6. A lubricating oil detection system, characterized in that: include: The lubricating oil filter according to any one of claims 1 to 5; a data processing device connected to the lubricating oil filter, and used to obtain the particle contamination data collected by the oil inlet cleanliness detection module and the oil outlet cleanliness module in the lubricating oil filter, and generate a lubricating oil contamination detection result of the lubricating oil passing through the lubricating oil filter based on the particle contamination data, wherein the lubricating oil contamination detection result includes at least one of the number of foreign particles in the lubricating oil, the size of the foreign particles, and the cleanliness grade of the lubricating oil; A display device is connected to the data processing device and is used to display at least one data in the lubricating oil contamination detection result.

7. A lubricating oil detection method, applied to the lubricating oil cleanliness detection system according to claim 7, characterized in that: The lubricating oil detection method comprises: Acquire particle contamination data, the particle contamination data including first particle contamination data collected by an inlet oil cleanliness detection module and second particle contamination data collected by an outlet oil cleanliness detection module, wherein the first particle contamination data includes the number and size of foreign particles in the lubricating oil, and the second particle contamination data includes the number of foreign particles in the lubricating oil; Determining filter replacement reminder information based on the first particle contamination data and the second particle contamination data; Lubricating oil change reminder information is determined based on the first particle contamination data.

8. The method according to claim 7, characterized in that Determining filter replacement reminder information based on the first particle pollution data and the second particle pollution data includes: When the number of foreign particles in the first particle pollution data and the number of foreign particles in the second particle pollution data are both not zero, filter replacement reminder information is generated.

9. The method according to claim 8, characterized in that Determining filter replacement reminder information based on the first particle contamination data and the second particle contamination data, further comprising: determining a cleanliness level of the lubricating oil based on the number of foreign particles and the size of foreign particles in the first particle contamination data when the number of foreign particles in the first particle contamination data is not zero, wherein the lubricating oil includes a plurality of cleanliness levels; Based on the first particle contamination data, determining lubricant oil replacement reminder information includes: generating lubricant oil replacement reminder information when the cleanliness level of the lubricant oil increases and increases to one of the cleanliness levels unchanged.

10. An automobile, characterized in that: A lubricating oil filter comprising any one of claims 1-6.

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