Test method, device, storage medium and bench apparatus for engine oil

Abstract

The embodiment of the present application provides a test method and device of engine oil, a storage medium and a bench equipment. The method comprises the following steps: setting an engine oil test environment according to test parameters corresponding to each engine oil test; performing preset processing on the rotating speed of the engine in the set engine oil test environment, and testing the engine oil in the engine by using the preset processed rotating speed, so that the characteristics of different engine oils can be compared through at least one test, and the user can analyze the engine oil which is more in line with the demand, has good performance and high quality.

Description

[0001] The embodiment of the present application relates to the technical field of engine oil, in particular to a test method, device, storage medium and bench equipment of engine oil.

[0002] Engine oil, also known as engine lubricating oil, is collectively referred to as engine oil. During the operation of the engine, the engine oil has the function of lubricating and reducing friction, which can reduce the friction loss of the engine during operation; the engine oil has the function of auxiliary cooling, which can absorb the heat generated during the operation of the engine, and plays the role of cooling the engine parts; the engine oil has the function of sealing and preventing leakage, which can form an oil film between the piston and the piston ring to reduce the amount of blow-by gas; during the circulation of the engine oil in the engine, part of the carbon, sludge, metal and non-metallic impurities generated by the engine combustion can be brought back to the oil pan and filtered through the filter and oil filter; and when the operating state of the engine changes suddenly, the engine oil can also play the role of buffering. In addition, the engine oil also has the functions of rust and corrosion prevention.

[0003] However, if the user selects unreasonable engine oil to inject into the engine, the oil consumption of the engine will be increased, the power of the engine will be reduced, and for hybrid engines, there will be a serious engine oil emulsification problem. With the increasingly stringent energy saving and emission reduction and oil consumption regulations, how to select a good performance and high quality engine oil is crucial for the development and maintenance of the engine.

[0004] Therefore, the embodiment of the present application provides a test method, device, storage medium and bench equipment of engine oil to select a good performance and high quality engine oil.

[0005] In a first aspect, the embodiment of the present application provides a test method of engine oil, comprising:

[0006] According to the obtained test parameters corresponding to each engine oil test, the engine oil test environment is set;

[0007] In the set engine oil test environment, the speed of the engine is preprocessed, and the engine oil in the engine is tested at the preprocessed speed.

[0008] In a possible implementation, the preprocessing of the speed of the engine comprises:

[0009] In the first speed range, the speed of the engine is adjusted to generate at least one first speed;

[0010] The test of the engine oil in the engine at the preprocessed speed comprises:

[0011] ​​​running the engine at the first rotating speed and obtaining test data corresponding to the first rotating speed.

[0012] In a possible implementation, the first rotating speed range is an interval range of an initial rotating speed and a target rotating speed, and the adjusting the rotating speed of the engine to generate at least one first rotating speed comprises:

[0013] generating at least one first rotating speed according to a set first step value during the process that the rotating speed of the engine is reduced from the initial rotating speed to the target rotating speed;

[0014] The test data comprises first measurement data, and the obtaining test data corresponding to the first rotating speed comprises:

[0015] collecting the first measurement data corresponding to the first rotating speed.

[0016] In a possible implementation, the test parameters comprise at least one of an intake temperature range, an atmospheric pressure range, a correction coefficient range, an outlet temperature range, an inlet-outlet temperature difference range, and a main oil passage temperature range.

[0017] In a possible implementation, the first measurement data comprises at least one of an accelerator opening degree, a first rotating speed, a first torque, a first power, an oil pressure, a main oil passage temperature, an intake temperature, an intake pressure, an exhaust temperature, an exhaust back pressure, an inlet temperature, an outlet temperature, a crankcase pressure, an atmospheric pressure, a humidity, and a correction coefficient.

[0018] In a possible implementation, after the rotating speed of the engine is reduced from the initial rotating speed to the target rotating speed, the method further comprises:

[0019] obtaining at least one first rotating speed during the process that the rotating speed of the engine is increased from the target rotating speed to the initial rotating speed;

[0020] The test data further comprises second measurement data, and the obtaining test data corresponding to the first rotating speed comprises:

[0021] collecting the second measurement data corresponding to the first rotating speed;

[0022] generating a data deviation corresponding to each first rotating speed according to the first measurement data and the second measurement data corresponding to each first rotating speed;

[0023] determining whether each data deviation is less than or equal to a first threshold value;

[0024] If it is determined that each data deviation is less than or equal to the first threshold value, the first measurement data and the second measurement data corresponding to each first rotating speed are taken as test data corresponding to the first rotating speed.

[0025] In a possible implementation, the method further includes:

[0026] If it is determined that any one of the data deviations is greater than the first threshold, collecting first re-measurement data corresponding to a first re-measurement rotating speed in a process in which the rotating speed of the engine decreases from an initial rotating speed to a target rotating speed, the first re-measurement rotating speed being the first rotating speed corresponding to the data deviation greater than the first threshold;

[0027] collecting second re-measurement data corresponding to a second re-measurement rotating speed in a process in which the rotating speed of the engine increases from the target rotating speed to the initial rotating speed, the second re-measurement rotating speed being the same rotating speed as the first re-measurement rotating speed;

[0028] generating a re-measurement data deviation according to the first re-measurement data and the second re-measurement data;

[0029] determining whether the re-measurement data deviation is greater than the first threshold;

[0030] If it is determined that the re-measurement data deviation is greater than the first threshold, performing the step of collecting the first re-measurement data corresponding to the first re-measurement rotating speed in the process in which the rotating speed of the engine decreases from the initial rotating speed to the target rotating speed;

[0031] If it is determined that the re-measurement data deviation is less than or equal to the first threshold, taking the first re-measurement data and the second re-measurement data as test data corresponding to the first rotating speed.

[0032] In a possible implementation, the test data includes third measurement data, and the obtaining of the test data corresponding to the first rotating speed includes:

[0033] obtaining a maximum net torque corresponding to the first rotating speed;

[0034] generating at least one first torque according to the obtained second step value and collecting third measurement data corresponding to each first torque in a process in which a torque corresponding to the first rotating speed of the engine decreases from a maximum net torque to a target torque.

[0035] In a possible implementation, when the engine oil test is a first engine oil test, after the obtaining of the test data corresponding to the first rotating speed, the method further includes:

[0036] generating at least one test graph according to the test data corresponding to at least one first rotating speed.

[0037] In a second aspect, an embodiment of the present application provides an engine oil test device, including:

[0038] The settings module is used to set the oil test environment based on the test parameters corresponding to each oil test.

[0039] The processing module is used to preset the engine speed within a set oil test environment, and then test the oil in the engine at the preset speed.

[0040] Thirdly, embodiments of the present invention provide a storage medium comprising a stored program, wherein, when the program is executed, the device on which the storage medium is located executes the oil testing method described in the first aspect or any possible implementation thereof.

[0041] Fourthly, embodiments of the present invention provide a bench device, including a memory and a processor. The memory is used to store information including program instructions, and the processor is used to control the execution of the program instructions. When the program instructions are loaded and executed by the processor, they implement the steps of the oil testing method in the first aspect or any possible implementation of the first aspect.

[0042] The present invention provides a technical solution for testing engine oil, including a testing method, apparatus, storage medium, and test bench. Based on the test parameters corresponding to each engine oil test, an engine oil testing environment is set. Within the set engine oil testing environment, the engine speed is preset, and the engine oil in the engine is tested at the preset speed. This allows for the comparison of the characteristics of different engine oils through at least one test, enabling users to analyze and select an engine oil that better meets their needs, has better performance, and is of higher quality. [Attached Image Description]

[0043] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 A flowchart illustrating a testing method for engine oil provided in an embodiment of the present invention;

[0045] Figure 2 A flowchart illustrating another testing method for engine oil provided in an embodiment of the present invention;

[0046] Figure 3 A flowchart illustrating another testing method for engine oil provided in an embodiment of the present invention;

[0047] Figure 4 A flowchart illustrating another testing method for engine oil provided in an embodiment of the present invention;

[0048] Figure 5 A schematic diagram of a device for testing engine oil provided in an embodiment of the present invention;

[0049] Figure 6 This is a schematic diagram of a test bench device provided in an embodiment of the present invention.

Detailed Implementation Methods

[0050] To better understand the technical solution of the present invention, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0051] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0052] The terminology used in the embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms “a,” “the,” and “the” as used in the embodiments of this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0053] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0054] It should be understood that although terms such as first, second, third, etc., may be used to describe numbers in embodiments of the present invention, these numbers should not be limited to these terms. These terms are only used to distinguish numbers from each other. For example, without departing from the scope of embodiments of the present invention, a first number may also be referred to as a second number, and similarly, a second number may also be referred to as a first number.

[0055] Depending on the context, the word "if" as used here can be interpreted as "when," "when," "in response to determination," or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination," "in response to determination," "when detection (of the stated condition or event)," or "in response to detection (of the stated condition or event)."

[0056] Figure 1 A flowchart of a testing method for engine oil provided in an embodiment of the present invention is shown below. Figure 1 As shown, the method includes:

[0057] Step 101, setting the oil test environment according to the test parameters corresponding to each oil test obtained.

[0058] In the embodiment of the present application, the oil test includes oil selection test based on friction work, oil selection test based on external characteristics, comparative test based on universal characteristic curve oil consumption, engine knock test method or oil emulsification test. Different oil tests can correspond to different test parameters.

[0059] The test parameters can include at least one of the ambient chamber temperature, the throttle opening degree and the first speed range. When the bench device performs the oil emulsification test, the test parameters include the ambient chamber temperature, the throttle opening degree and the first speed range. The bench device includes an electric dynamometer connected with the engine, and the electric dynamometer is used to adjust the speed of the engine. The engine includes a heating pipe without a thermostat.

[0060] The engine is located in a vehicle, and the vehicle further includes a throttle. The throttle opening degree refers to the opening degree of the throttle, and the throttle opening degree is in the range of greater than or equal to 0 and less than or equal to 100%. For example, the engine is located in the ambient chamber of the bench laboratory, the bench device sets the ambient chamber temperature, and the ambient chamber temperature is -30 degrees Celsius (℃). The throttle opening degree is 40%. The first speed range is the range of the speed of the engine when the engine is running. For example, when the rated speed of the engine is 6000 revolutions per minute (rpm), it indicates that the maximum speed of the engine is 6000 rpm, and the first speed range is less than or equal to 6000 rpm.

[0061] In the same oil test, the worker respectively injects different oils into the engine, but different oils correspond to the same oil test environment. For example, when the oil A is injected into the engine, the worker can input the test parameters corresponding to the oil test to the bench device. When the oil A ends the test, the worker needs to clean the engine with the oil B and then inject the oil B into the engine, so as to replace the oil A in the engine with the oil B, so that the oil B performs the oil test under the same conditions as the oil A.

[0062] For example, when the oil A ends the oil emulsification test, the worker needs to clean the engine with the oil B and then inject the oil B into the engine, so as to replace the oil A in the engine with the oil B, which reduces the influence of the residual oil A on the oil B when the oil B performs the oil emulsification test. But in the embodiment of the present application, the number of oils participating in the test is not limited.

[0063] In step 102, the engine speed is preset processed in the set oil test environment, and the oil in the engine is tested at the preset processed speed.

[0064] In a possible implementation, the preset processing of the engine speed by the test bench device includes: adjusting the engine speed in a first speed range to generate at least one first speed.

[0065] In a possible implementation, the test of the oil in the engine at the preset processed speed by the test bench device includes: running the engine at the first speed and obtaining test data corresponding to the first speed.

[0066] In another possible implementation, the test of the oil in the engine at the preset processed speed by the test bench device includes: running the engine at the first speed and counting the running times and the first running time; determining whether the running times are greater than or equal to a second threshold; if the running times are determined to be less than the second threshold, determining whether the first running time is greater than a third threshold; if the first running time is determined to be greater than the third threshold, stopping running the engine and collecting the oil temperature; determining whether the oil temperature is less than or equal to the environment chamber temperature; if the oil temperature is determined to be greater than the environment chamber temperature, executing the step of collecting the oil temperature; if the oil temperature is determined to be less than or equal to the environment chamber temperature, increasing the running times by a third step value to generate the current running times; executing the step of running the engine at the first speed and counting the running times and the first running time; and if the running times are determined to be greater than or equal to the second threshold, ending the test.

[0067] For example, when the test bench device performs the oil emulsification test, the first speed is 2500 revolutions per minute (rpm), the second threshold is 8, the third threshold is 30 minutes, and the third step value is 1. The test bench device runs the engine at 2500 rpm for 30 minutes; after the test bench device runs the engine for 30 minutes, the oil temperature rises due to the running of the engine, the test bench device stops and cools to reduce the oil temperature, but generally needs to stop and cool for 8 to 12 hours; during this period, the test bench device continuously collects the oil temperature; when the oil temperature decreases to the environment chamber temperature, the step of running the engine at 2500 rpm for 30 minutes is executed again; the test bench device counts the running times of the engine, and after the test bench device executes the step of running the engine at 2500 rpm for 30 minutes for the eighth time, the oil emulsification test corresponding to the oil is ended.

[0068] If the engine is filled with engine oil A, when the oil emulsification test based on engine oil A is completed, the operator collects a sample of engine oil A from the engine and records the first collection time. After collecting samples of engine oil A, the operator replaces the engine oil with engine oil B. When the oil emulsification test based on engine oil B is completed, the operator collects a sample of engine oil B and records the second collection time. The operator analyzes the samples of engine oil A and engine oil B, and compares the emulsification performance of engine oil A and engine oil B based on the analysis results to obtain an engine oil that is less prone to emulsification. However, in this embodiment of the invention, the number of engine oils used in the oil emulsification test is not limited.

[0069] This invention provides a method for testing engine oil. Based on the test parameters corresponding to each engine oil test, an engine oil test environment is set. Within the set engine oil test environment, the engine speed is preset, and the engine oil in the engine is tested at the preset speed. This allows for the comparison of the characteristics of different engine oils through at least one test, enabling users to analyze and select an engine oil that better meets their needs, has better performance, and is of higher quality.

[0070] Figure 2 A flowchart of another testing method for engine oil provided in an embodiment of the present invention is shown below. Figure 2 As shown, the method includes:

[0071] Step 201: Set the oil test environment according to the test parameters corresponding to each oil test obtained.

[0072] In this embodiment of the invention, the test parameters may include at least one of the following: intake air temperature range, atmospheric pressure range, correction factor range, outlet temperature range, inlet and outlet temperature difference range, main oil passage temperature range, throttle opening, and first speed range. When the engine oil test is an engine oil selection test based on friction work, the test parameters include the intake air temperature range, atmospheric pressure range, correction factor range, outlet temperature range, inlet and outlet temperature difference range, main oil passage temperature range, throttle opening, and first speed range.

[0073] For example, the intake air temperature range is (25±5) degrees Celsius (℃). The atmospheric pressure range is (99±2) kilopascal (kPa). The correction coefficient range is that the correction coefficient is greater than or equal to 0.97 and less than or equal to 1.03. The outlet temperature is the temperature of the outlet of the coolant of the engine, and the outlet temperature range is (88±5) ℃. The inlet-outlet temperature difference is the difference between the inlet temperature and the outlet temperature of the coolant of the engine, and the inlet-outlet temperature difference range is that the inlet-outlet temperature difference is less than or equal to 5 ℃. The main oil passage temperature is the temperature of the oil passage where the oil in the engine is located, and the main oil passage temperature range is (105±10) ℃. The first speed range is the range in which the speed of the engine is located when the engine is running. For example, when the rated speed of the engine is 6000 revolutions per minute (rpm), it indicates that the speed of the engine is at most 6000 rpm, and the first speed range is the range in which the first speed is less than or equal to 6000 rpm and greater than or equal to 1000 rpm. The oil selection test based on friction work includes a full throttle test and a full closed throttle test, where the difference between the full throttle test and the full closed throttle test is the throttle opening. For example, when the full throttle test is performed, the throttle opening is 100%; when the full closed throttle test is performed, the throttle opening is 0.

[0074] In one possible implementation, when the oil selection test based on friction work is performed, the worker cuts off the oil circuit of the vehicle and the connection between the ignition power supply and the engine. The engine includes a turbocharger, and the worker fully closes the wastegate valve of the turbocharger; the oil is injected into the engine to make the oil perform the oil selection test based on friction work.

[0075] Step 202, in the set oil test environment, and in the process of reducing the speed of the engine from the initial speed to the target speed, at least one first speed is generated according to the set first step value.

[0076] In the embodiment of the application, the first speed range includes the initial speed and the target speed. The first speed range of the engine is the interval range in which the initial speed and the target speed are located. For example, the initial speed is 6000 rpm, the target speed is 1000 rpm, and the first step value is 400 rpm. The bench device gradually reduces the speed of the engine from 6000 rpm to 1000 rpm, and generates a first speed every 400 rpm when the speed of the engine is gradually reduced from 6000 rpm to 1000 rpm. The first speed is 6000 rpm, 5600 rpm, 5200 rpm, 4800 rpm, 4400 rpm, 4000 rpm, 3600 rpm, 3200 rpm, 2800 rpm, 2400 rpm, 2000 rpm, 1600 rpm or 1200 rpm.

[0077] Step 203, running the engine at the first rotating speed and collecting the first measurement data corresponding to the first rotating speed.

[0078] In the embodiment of the present application, the test data includes the first measurement data, and when the test bench device performs step 202, the test bench device controls the rotating speed of the engine to gradually decrease from the initial rotating speed to the target rotating speed according to the first step value, and collects the first measurement data corresponding to each first rotating speed in the process of decreasing the rotating speed.

[0079] The first measurement data includes at least one of the throttle opening, the first rotating speed, the first torque, the first power, the oil pressure, the main oil passage temperature, the intake temperature, the intake pressure, the exhaust temperature, the exhaust back pressure, the inlet temperature, the outlet temperature, the crankcase pressure, the atmospheric pressure, the humidity and the correction coefficient. When the oil test is the oil selection test based on the friction work, the first measurement data includes the throttle opening, the first rotating speed, the first torque, the first power, the oil pressure, the main oil passage temperature, the intake temperature, the intake pressure, the exhaust temperature, the exhaust back pressure, the inlet temperature, the outlet temperature, the crankcase pressure, the atmospheric pressure, the humidity and the correction coefficient. For example, when the first rotating speed is 6000 rpm, the first torque is the torque corresponding to the first rotating speed of 6000 rpm.

[0080] In a possible implementation, when the full-off throttle test is performed, step 203 further includes: when the engine is running at the first rotating speed, counting a second running time; determining whether the second running time is less than or equal to a fourth threshold value, if it is determined that the second running time is less than or equal to the fourth threshold value, ending the test; if it is determined that the second running time is greater than the fourth threshold value, performing step 203. For example, the fourth threshold value is 3 minutes, and when the full-off throttle test is performed, the test bench device determines whether the second running time is less than or equal to 3 minutes; if it is determined that the second running time is less than or equal to 3 minutes, ending the test; if it is determined that the second running time is greater than 3 minutes, performing the step of running the engine at the first rotating speed and collecting the first measurement data corresponding to the first rotating speed.

[0081] In a possible implementation, the first measurement data includes temperature data, and when the full-off throttle test is performed, step 203 further includes: when the engine is running at the first rotating speed, obtaining a reference temperature, the reference temperature being the temperature data corresponding to the first rotating speed in the full-on throttle test with the same current first rotating speed; and adjusting the temperature data corresponding to the current first rotating speed according to the reference temperature.

[0082] In the embodiment of the present application, the temperature data includes at least one of the main oil passage temperature, the inlet temperature and the outlet temperature. For example, if the current first rotating speed is 6000 rpm, the bench equipment reads the main oil passage temperature, the inlet temperature and the outlet temperature corresponding to the first rotating speed of 6000 rpm in the full throttle test, and takes the main oil passage temperature, the inlet temperature and the outlet temperature corresponding to the first rotating speed of 6000 rpm in the full throttle test as the reference temperature, and adjusts the main oil passage temperature, the inlet temperature and the outlet temperature corresponding to the first rotating speed of 6000 rpm according to the reference temperature, so that the temperature difference between the current main oil passage temperature and the main oil passage temperature in the reference temperature is less than or equal to 2℃ and greater than or equal to -2℃, the temperature difference between the current inlet temperature and the inlet temperature in the reference temperature is less than or equal to 2℃ and greater than or equal to -2℃, and the temperature difference between the current outlet temperature and the outlet temperature in the reference temperature is less than or equal to 2℃ and greater than or equal to -2℃.

[0083] In step 204, at least one test graph is generated according to the test data corresponding to at least one first rotating speed.

[0084] In the embodiment of the present application, the first test includes a machine oil selection test based on friction work. The bench equipment takes the first measurement data as the test data of the first rotating speed. The test graph includes a rotating speed-torque graph or a rotating speed-power graph. When the machine oil selection test based on friction work is performed, the at least one test graph includes the rotating speed-torque graph and the rotating speed-power graph. The rotating speed-torque graph includes at least one first rotating speed and a first torque corresponding to each first rotating speed, wherein the rotating speed-torque graph includes a coordinate system with the first rotating speed as the horizontal axis and the first torque as the vertical axis, and the coordinate system includes a curve drawn by the at least one first rotating speed and the first torque corresponding to each first rotating speed. The rotating speed-power graph includes at least one first rotating speed and a first power corresponding to each first rotating speed, wherein the rotating speed-power graph includes a coordinate system with the first rotating speed as the horizontal axis and the first power as the vertical axis, and the coordinate system includes a curve drawn by the at least one first rotating speed and the first power corresponding to each first rotating speed.

[0085] For example, if the engine is injected with machine oil A, the bench equipment draws the rotating speed-torque graph and the rotating speed-power graph corresponding to the machine oil A; if the engine is injected with machine oil B, the bench equipment draws the rotating speed-torque graph and the rotating speed-power graph corresponding to the machine oil B; and the staff compares the rotating speed-torque graph and the rotating speed-power graph corresponding to the machine oil A with the rotating speed-torque graph and the rotating speed-power graph corresponding to the machine oil B to analyze the machine oil with better friction performance. In the embodiment of the present application, the number of machine oils subjected to the machine oil selection test based on friction work is not limited.

[0086] This invention provides a method for testing engine oil. Based on the test parameters obtained for each engine oil test, a test environment is set. Within this environment, the engine speed is preset, and the engine oil is tested at the preset speed. This allows for comparison of the lubrication characteristics of different engine oils through friction-based oil selection testing, enabling users to identify engine oils that better meet their needs, have higher performance, better quality, and better lubrication, thereby reducing engine wear.

[0087] Figure 3 A flowchart of another testing method for engine oil provided in an embodiment of the present invention is shown below. Figure 3 As shown, the method includes:

[0088] Step 301: Set the oil test environment according to the test parameters corresponding to each oil test obtained.

[0089] In this embodiment of the invention, the test parameters include at least one of throttle opening, engine ignition angle, air-fuel ratio, variable valve timing (VVT) angle, and a first speed range. When the test bench performs an oil selection test based on external characteristics, the test parameters include throttle opening, engine ignition angle, air-fuel ratio, variable valve timing (VVT) angle, and a first speed range. When the test bench performs an engine knock test, the test bench includes a combustion analyzer connected to the engine. The test parameters include the first speed range.

[0090] For example, when the bench equipment performs an oil selection test based on external characteristics, the throttle opening is 100%, and the first speed range is a range of speeds less than or equal to 6000 rpm and greater than or equal to 1000 rpm. When the bench equipment performs an engine knock test, the first speed range can also be a range of speeds less than or equal to 6000 rpm and greater than or equal to 1000 rpm.

[0091] Step 302: Within the set oil test environment, and during the process of the engine speed decreasing from the initial speed to the target speed, generate at least one first speed according to the set first step length value.

[0092] In the embodiment of the present application, the first rotation speed range includes an initial rotation speed and a target rotation speed. For example, when the test bench device performs the oil selection test based on external characteristics, the initial rotation speed is 6000 rpm, the target rotation speed is 1000 rpm, the first step value is 200 rpm, the test bench device gradually reduces the rotation speed of the engine from 6000 rpm to 1000 rpm, and generates the first rotation speed every 200 rpm when the rotation speed of the engine is gradually reduced from 6000 rpm to 1000 rpm. The first rotation speed is 6000 rpm, 5800 rpm, 5600 rpm, 5400 rpm, 5200 rpm, 5000 rpm, 4800 rpm, 4600 rpm, 4400 rpm, 4200 rpm, 4000 rpm, 3800 rpm, 3600 rpm, 3400 rpm, 3200 rpm, 3000 rpm, 2800 rpm, 2600 rpm, 2400 rpm, 2200 rpm, 2000 rpm, 1800 rpm, 1600 rpm, 1400 rpm, 1200 rpm or 1000 rpm.

[0093] When the test bench device performs the engine knock test, the initial rotation speed is 6000 rpm, the target rotation speed is 1000 rpm, the first step value is 200 rpm, the test bench device gradually reduces the rotation speed of the engine from 6000 rpm to 1000 rpm, and generates the first rotation speed every 400 rpm when the rotation speed of the engine is gradually reduced from 6000 rpm to 1000 rpm.

[0094] Step 303, running the engine at the first rotation speed and collecting the first measurement data corresponding to the first rotation speed.

[0095] In the embodiment of the present application, when the test bench device performs step 302, the test bench device controls the rotation speed of the engine to gradually reduce from the initial rotation speed to the target rotation speed according to the first step value, and collects the first measurement data corresponding to each first rotation speed in the process of reducing the rotation speed.

[0096] The first measurement data includes at least one of the throttle opening, the first rotation speed, the first torque, the first power, the oil pressure, the main oil passage temperature, the fuel consumption rate, the intake temperature, the intake pressure, the exhaust temperature, the exhaust back pressure, the inlet temperature, the outlet temperature, the crankcase pressure, the atmospheric pressure, the fuel pressure, the air-fuel ratio, the humidity, the correction coefficient and the knock frequency.

[0097] When the test bench device performs the oil selection test based on external characteristics, the first measurement data includes throttle opening, first rotational speed, first torque, first power, oil pressure, main oil passage temperature, fuel consumption rate, intake air temperature, intake air pressure, exhaust gas temperature, exhaust gas back pressure, inlet temperature, outlet temperature, crankcase pressure, atmospheric pressure, fuel pressure, air-fuel ratio, humidity, and correction coefficient. When the test bench device performs the engine knock test, the first measurement data includes knock frequency.

[0098] Step 304: obtaining at least one first rotational speed during the process that the rotational speed of the engine is increased from the target rotational speed to the initial rotational speed.

[0099] In the embodiment of the present application, the at least one first rotational speed obtained by the test bench device in step 304 is the same as the at least one first rotational speed generated by the test bench device in step 302.

[0100] Step 305: running the engine at the first rotational speed and collecting second measurement data corresponding to the first rotational speed.

[0101] In the embodiment of the present application, when the test bench device performs step 304, the test bench device controls the rotational speed of the engine to be gradually increased from the target rotational speed to the initial rotational speed according to the first step value, and collects the second measurement data corresponding to each first rotational speed during the process of increasing the rotational speed.

[0102] The second measurement data includes at least one of throttle opening, first rotational speed, first torque, first power, oil pressure, main oil passage temperature, fuel consumption rate, intake air temperature, intake air pressure, exhaust gas temperature, exhaust gas back pressure, inlet temperature, outlet temperature, crankcase pressure, atmospheric pressure, fuel pressure, air-fuel ratio, humidity, correction coefficient, and knock frequency.

[0103] When the test bench device performs the oil selection test based on external characteristics, the second measurement data includes throttle opening, first rotational speed, first torque, first power, oil pressure, main oil passage temperature, fuel consumption rate, intake air temperature, intake air pressure, exhaust gas temperature, exhaust gas back pressure, inlet temperature, outlet temperature, crankcase pressure, atmospheric pressure, fuel pressure, air-fuel ratio, humidity, and correction coefficient. When the test bench device performs the engine knock test, the second measurement data includes knock frequency.

[0104] Step 306: generating data deviation corresponding to each first rotational speed according to the first measurement data and the second measurement data corresponding to each first rotational speed.

[0105] In the embodiment of the present application, when the bench equipment performs the oil selection test based on external characteristics, for each first rotating speed, the bench equipment generates a first data deviation according to the first torque of the first measurement data and the first torque of the second measurement data, generates a second data deviation according to the fuel consumption rate of the first measurement data and the fuel consumption rate of the second measurement data, and takes the sum of the first data deviation and the second data deviation as the data deviation of the first rotating speed.

[0106] When the bench equipment performs the engine knock test, the bench equipment generates a data deviation according to the knock frequency of the first measurement data and the knock frequency of the second measurement data.

[0107] In step 307, it is judged whether each data deviation is less than or equal to the first threshold value. If it is judged that each data deviation is less than or equal to the first threshold value, step 308 is performed. If it is judged that any one data deviation is greater than the first threshold value, step 309 is performed.

[0108] In the embodiment of the present application, for example, the first threshold value is 1%, when the bench equipment performs the oil selection test based on external characteristics or the engine knock test, the bench equipment judges whether each data deviation is less than or equal to 1%. If it is judged that each data deviation is less than or equal to 1%, step 308 is performed. If it is judged that any one data deviation is greater than 1%, step 309 is performed.

[0109] In step 308, the first measurement data and the second measurement data corresponding to each first rotating speed are taken as the test data corresponding to the first rotating speed.

[0110] In step 309, during the process that the rotating speed of the engine is reduced from the initial rotating speed to the target rotating speed, the first re-measurement data corresponding to the first re-measurement rotating speed is collected, and the first re-measurement rotating speed is the first rotating speed corresponding to the data deviation greater than the first threshold value.

[0111] In the embodiment of the present application, the first re-measurement data includes at least one of the throttle opening, the first rotating speed, the first torque, the first power, the oil pressure, the main oil passage temperature, the fuel consumption rate, the intake temperature, the intake pressure, the exhaust temperature, the exhaust back pressure, the inlet temperature, the outlet temperature, the crankcase pressure, the atmospheric pressure, the fuel pressure, the air-fuel ratio, the humidity, the correction coefficient and the knock frequency.

[0112] When the bench equipment performs the oil selection test based on external characteristics, the first re-measurement data includes the throttle opening, the first rotating speed, the first torque, the first power, the oil pressure, the main oil passage temperature, the fuel consumption rate, the intake temperature, the intake pressure, the exhaust temperature, the exhaust back pressure, the inlet temperature, the outlet temperature, the crankcase pressure, the atmospheric pressure, the fuel pressure, the air-fuel ratio, the humidity and the correction coefficient. When the bench equipment performs the engine knock test, the first re-measurement data includes the knock frequency.

[0113] Step 310, collecting second retest data corresponding to a second retest speed during the process that the engine speed is increased from the target speed to the initial speed, the second retest speed being the same as the first retest speed.

[0114] In the embodiment of the application, the second retest data includes at least one of the throttle opening, the first speed, the first torque, the first power, the oil pressure, the main oil passage temperature, the fuel consumption rate, the intake temperature, the intake pressure, the exhaust temperature, the exhaust back pressure, the inlet temperature, the outlet temperature, the crankcase pressure, the atmospheric pressure, the fuel pressure, the air-fuel ratio, the humidity, the correction coefficient and the knock frequency.

[0115] When the bench equipment performs the oil selection test based on the external characteristics, the second retest data includes the throttle opening, the first speed, the first torque, the first power, the oil pressure, the main oil passage temperature, the fuel consumption rate, the intake temperature, the intake pressure, the exhaust temperature, the exhaust back pressure, the inlet temperature, the outlet temperature, the crankcase pressure, the atmospheric pressure, the fuel pressure, the air-fuel ratio, the humidity and the correction coefficient. When the bench equipment performs the engine knock test, the second retest data includes the knock frequency.

[0116] Step 311, generating a retest data deviation according to the first retest data and the second retest data.

[0117] In the embodiment of the application, step 311 can refer to step 306.

[0118] Step 312, judging whether the retest data deviation is greater than a first threshold value, if yes, executing step 309, and if no, executing step 313.

[0119] In the embodiment of the application, if the bench equipment judges that the retest data deviation is greater than the first threshold value, step 309 is executed, and if the bench equipment judges that the retest data deviation is less than or equal to the first threshold value, step 313 is executed.

[0120] Step 313, taking the first retest data and the second retest data as the test data corresponding to the first speed.

[0121] Step 314, generating at least one test graph according to the test data corresponding to at least one first speed.

[0122] In the embodiment of the present application, the first test includes an oil selection test based on external characteristics and an engine knock test. The test graph includes a speed-torque graph, a speed-power graph, a speed-specific fuel consumption graph, or a speed-knock frequency graph. When the test bench device performs the oil selection test based on external characteristics, the at least one test graph includes the speed-torque graph, the speed-power graph, and the speed-specific fuel consumption graph. The speed-specific fuel consumption graph includes at least one first speed and a specific fuel consumption corresponding to each first speed, wherein the speed-specific fuel consumption graph includes a coordinate system with the first speed as the horizontal axis and the specific fuel consumption as the vertical axis, and the coordinate system includes a curve drawn by the at least one first speed and the specific fuel consumption corresponding to each first speed.

[0123] When the test bench device performs the engine knock test, the at least one test graph includes the speed-knock frequency graph. The speed-knock frequency graph includes at least one first speed and a knock frequency corresponding to each first speed, wherein the speed-specific fuel consumption graph includes a coordinate system with the first speed as the horizontal axis and the knock frequency as the vertical axis, and the coordinate system includes a curve drawn by the at least one first speed and the knock frequency corresponding to each first speed.

[0124] The embodiment of the present application provides a test method of oil. According to the test parameters corresponding to each oil test obtained, the oil test environment is set. The speed of the engine is preprocessed in the set oil test environment, and the oil in the engine is tested by using the preprocessed speed, so that the user can analyze the oil that is more in line with the demand, has good performance, and has high quality through the oil selection test based on external characteristics or the engine knock test.

[0125] Figure 4 Another flowchart of the test method of oil provided by the embodiment of the present application is shown in FIG. 4, and the method includes the following steps. Figure 4

[0126] Step 401: According to the test parameters corresponding to each oil test obtained, the oil test environment is set.

[0127] In the embodiment of the present application, the oil test includes a comparison test based on the specific fuel consumption of the universal characteristic curve. The test parameters include a first speed range.

[0128] Step 402: In the set oil test environment, and in the process that the speed of the engine is reduced from an initial speed to a target speed, at least one first speed is generated according to a set first step value.

[0129] ​In the embodiment of the present application, for example, the initial rotation speed is 6000 rpm, the target rotation speed is 1000 rpm, and the first step value is 400 rpm. The test bench device gradually reduces the rotation speed of the engine from 6000 rpm to 1000 rpm, and generates the first rotation speed every 400 rpm when the rotation speed of the engine is gradually reduced from 6000 rpm to 1000 rpm.

[0130] In step 403, the maximum net torque corresponding to the first rotation speed is obtained.

[0131] In step 404, during the process in which the torque corresponding to the first rotation speed of the engine is reduced from the maximum net torque to the target torque, at least one first torque is generated according to the obtained second step value, and third measurement data corresponding to each first torque is collected.

[0132] In the embodiment of the present application, the test data includes the third measurement data, and the test bench device takes the third measurement data as the test data. The third measurement data includes at least one of the maximum power, the torque-speed point, the average effective pressure working point, the throttle opening, the first rotation speed, the first torque, the first power, the oil pressure, the main oil passage temperature, the fuel consumption rate, the intake temperature, the intake pressure, the exhaust temperature, the exhaust back pressure, the inlet temperature, the outlet temperature, the crankcase pressure, the atmospheric pressure, the fuel pressure, the air-fuel ratio, the humidity, and the correction coefficient.

[0133] Before the test bench device generates at least one first torque according to the obtained second step value, the test bench device further includes: generating the second step value according to the maximum net torque by setting the number of measurement points. For example, the test bench device takes the ratio of the maximum net torque to the number of measurement points as the second step value. When the number of measurement points is 12 and the maximum net torque is 600 N, the second step value is 50 N.

[0134] The embodiment of the present application provides a test method of oil, sets an oil test environment according to the obtained test parameters corresponding to each oil test, performs a preset processing on the rotation speed of the engine in the set oil test environment, and tests the oil in the engine at the processed rotation speed, so that the user can analyze the oil that is more in line with the demand, has good performance, and has high quality through the comparative test based on the specific fuel consumption of the universal characteristic curve.

[0135] In a possible implementation manner, after the test bench device performs at least one embodiment shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the test bench device performs the engine durability test and the vehicle durability test, so as to verify that the engine and the vehicle for the oil test are both devices that meet the test standards, and ensure the rigor and reliability of the test, so that the test has higher credibility.

[0136] Figure 5 A structural schematic diagram of a device for testing engine oil provided by an embodiment of the present application is shown in FIG. 1. The device includes a setting module 11 and a processing module 12. Figure 5 The setting module 11 is connected to the processing module 12.

[0137] The setting module 11 is configured to set an engine oil test environment according to test parameters corresponding to each engine oil test obtained by the device. The processing module 12 is configured to perform a preset processing on the rotation speed of the engine in the set engine oil test environment, and perform a test on the engine oil in the engine at the rotation speed after the preset processing.

[0138] In an embodiment of the present application, the processing module 12 includes a generating sub-module 121 and an obtaining sub-module 122. The generating sub-module 121 is connected to the obtaining sub-module 122.

[0139] The generating sub-module 121 is configured to adjust the rotation speed of the engine in a first rotation speed range to generate at least one first rotation speed. The obtaining sub-module 122 is configured to run the engine at the first rotation speed and obtain test data corresponding to the first rotation speed.

[0140] In an embodiment of the present application, the generating sub-module 121 is specifically configured to generate at least one first rotation speed according to a set first step value in a process in which the rotation speed of the engine is reduced from an initial rotation speed to a target rotation speed. The test data includes first measurement data, and the obtaining sub-module 122 is specifically configured to collect the first measurement data corresponding to the first rotation speed.

[0141] In an embodiment of the present application, the test parameters include at least one of an intake temperature range, an atmospheric pressure range, a correction coefficient range, an outlet temperature range, an inlet-outlet temperature difference range, and a main oil passage temperature range.

[0142] In an embodiment of the present application, the first measurement data includes at least one of a throttle opening, a first rotation speed, a first torque, a first power, an engine oil pressure, a main oil passage temperature, an intake temperature, an intake pressure, an exhaust temperature, an exhaust back pressure, an inlet temperature, an outlet temperature, a crankcase pressure, an atmospheric pressure, a humidity, and a correction coefficient.

[0143] In an embodiment of the present application, the generating sub-module 121 is specifically configured to obtain at least one first rotation speed in a process in which the rotation speed of the engine is increased from the target rotation speed to the initial rotation speed. The test data further includes second measurement data, and the obtaining sub-module 122 is specifically configured to collect the second measurement data corresponding to the first rotation speed. According to the first measurement data and the second measurement data corresponding to each first rotation speed, a data deviation corresponding to each first rotation speed is generated. It is determined whether each data deviation is less than or equal to a first threshold value. If it is determined that each data deviation is less than or equal to the first threshold value, the first measurement data and the second measurement data corresponding to each first rotation speed are taken as the test data corresponding to the first rotation speed.

[0144] In the embodiment of the present application, the acquisition submodule 122 is specifically configured to: if it is determined that any one of the data deviations is greater than the first threshold value, collect first re-measurement data corresponding to a first re-measurement speed in a process in which the speed of the engine decreases from the initial speed to the target speed, the first re-measurement speed being a first speed corresponding to the data deviation greater than the first threshold value; collect second re-measurement data corresponding to a second re-measurement speed in a process in which the speed of the engine increases from the target speed to the initial speed, the second re-measurement speed being the same speed as the first re-measurement speed; generate a re-measurement data deviation according to the first re-measurement data and the second re-measurement data; determine whether the re-measurement data deviation is greater than the first threshold value; if it is determined that the re-measurement data deviation is greater than the first threshold value, execute the step of collecting the first re-measurement data corresponding to the first re-measurement speed in the process in which the speed of the engine decreases from the initial speed to the target speed; and if it is determined that the re-measurement data deviation is less than or equal to the first threshold value, take the first re-measurement data and the second re-measurement data as the test data corresponding to the first speed.

[0145] In the embodiment of the present application, the test data includes third measurement data, and the acquisition submodule 122 is specifically configured to: acquire a maximum net torque corresponding to the first speed; and in a process in which a torque corresponding to the first speed of the engine decreases from the maximum net torque to a target torque, generate at least one first torque according to the acquired second step value and collect third measurement data corresponding to each first torque.

[0146] In the embodiment of the present application, the device further includes a generation module 13. The generation module 13 is connected with the processing module 12.

[0147] The generation module 13 is configured to generate at least one test graph according to the test data corresponding to at least one first speed.

[0148] The embodiment of the present application provides a test device for engine oil. According to the acquired test parameters corresponding to each engine oil test, an engine oil test environment is set. The speed of the engine is preprocessed in the set engine oil test environment, and the engine oil in the engine is tested at the preprocessed speed, so that the characteristics of different engine oils can be compared through at least one test, and the user can analyze the engine oil that is more in line with the demand, has good performance, and has high quality.

[0149] The embodiment of the present application provides a storage medium, which includes a stored program. When the program runs, the device where the storage medium is located performs each step of the embodiment of the test method for engine oil, and specific descriptions can be referred to the above-mentioned embodiment of the test method for engine oil.

[0150] The embodiment of the present application provides a rack device, comprising a memory and a processor, the memory is used for storing information comprising program instructions, the processor is used for controlling execution of the program instructions, the program instructions are loaded and executed by the processor to realize each step of the embodiment of the test method of the engine oil, and specific description can be referred to the embodiment of the test method of the engine oil.

[0151] Figure 6 A schematic diagram of a rack device provided by the embodiment of the present application is shown in the figure. Figure 6 As shown in the figure, the rack device 30 of the embodiment comprises a processor 31, a memory 32 and a computer program 33 stored in the memory 32 and executable on the processor 31, the computer program 33 is executed by the processor 31 to realize the test method applied to the engine oil in the embodiment, to avoid repetition, details are not described herein. Alternatively, the computer program is executed by the processor 31 to realize the function of each model / unit in the test device applied to the engine oil in the embodiment, to avoid repetition, details are not described herein.

[0152] The rack device 30 comprises but is not limited to the processor 31 and the memory 32. Figure 6 It is understood by those skilled in the art that the rack device 30 is only an example and does not constitute a limitation on the rack device 30, and can comprise more or fewer components than the figure, or combine certain components, or different components, for example, the rack device 30 can also comprise an input / output device, a network access device, a bus and the like.

[0153] The processor 31 can be a central processing unit (CPU), and can also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0154] The memory 32 can be an internal storage unit of the rack device 30, such as a hard disk or a memory of the rack device 30. The memory 32 can also be an external storage device of the rack device 30, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, and the like equipped on the rack device 30. Further, the memory 32 can also include both the internal storage unit and the external storage device of the rack device 30. The memory 32 is used to store computer programs and other programs and data required by the rack device 30. The memory 32 can also be used to temporarily store data that has been output or is to be output.

[0155] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the system, device and unit described above can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

[0156] In several embodiments provided by the present application, it should be understood that the disclosed system, device and method can be implemented by other manners. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interfaces, devices or units, and can be electrical, mechanical or other forms.

[0157] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0158] In addition, each functional unit in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of hardware plus software functional unit.

[0159] The integrated unit in the form of software function unit can be stored in a computer readable storage medium. The software function unit is stored in a storage medium, and includes a plurality of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute part of steps of the method according to various embodiments of the present application. The storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various storage media capable of storing program codes.

[0160] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A test method for engine oil, characterized in that, include: Based on the test parameters obtained for each engine oil test, set the engine oil test environment; Within the set oil test environment, the engine speed is preset, and the oil in the engine is tested at the preset speed. The preset processing of the engine speed includes: Within a first speed range, the engine speed is adjusted to generate at least one first speed. The test of engine oil at a preset speed includes: The engine is run at the first speed and test data corresponding to the first speed is obtained; The first speed range is the interval between the initial speed and the target speed. Adjusting the engine speed to generate at least one first speed includes: During the process of the engine speed decreasing from the initial speed to the target speed, at least one first speed is generated according to the set first step length value; The test data includes first measurement data, and obtaining the test data corresponding to the first rotational speed includes: Collect the first measurement data corresponding to the first rotational speed; After the engine speed decreases from the initial speed to the target speed, the process further includes: During the process of the engine speed increasing from the target speed to the initial speed, at least one of the first speeds is acquired; The test data also includes second measurement data, and obtaining the test data corresponding to the first rotational speed includes: Collect the second measurement data corresponding to the first rotational speed; Based on the first measurement data and the second measurement data corresponding to each first rotational speed, a data deviation corresponding to each first rotational speed is generated; Determine whether each of the data deviations is less than or equal to a first threshold; If it is determined that each of the data deviations is less than or equal to the first threshold, then the first measurement data and the second measurement data corresponding to each of the first rotation speeds are taken as the test data corresponding to the first rotation speed.

2. The method according to claim 1, characterized in that, The test parameters include at least one of the following: intake air temperature range, atmospheric pressure range, correction factor range, outlet temperature range, inlet and outlet temperature difference range, and main oil passage temperature range.

3. The method according to claim 1, characterized in that, The first measurement data includes at least one of the following: throttle opening, first speed, first torque, first power, oil pressure, main oil passage temperature, intake temperature, intake pressure, exhaust temperature, exhaust back pressure, inlet temperature, outlet temperature, crankcase pressure, atmospheric pressure, humidity, and correction factor.

4. The method according to claim 1, characterized in that, The method further includes: If any of the data deviations is determined to be greater than the first threshold, then during the process of the engine speed decreasing from the initial speed to the target speed, the first retest data corresponding to the first retest speed is collected, and the first retest speed is the first speed corresponding to the data deviation that is greater than the first threshold. During the process of the engine speed increasing from the target speed to the initial speed, second retest data corresponding to the second retest speed is collected, and the second retest speed is the same as the first retest speed; The retest data deviation is generated based on the first retest data and the second retest data; Determine whether the deviation of the retest data is greater than the first threshold; If it is determined that the deviation of the retest data is greater than the first threshold, then the step of collecting the first retest data corresponding to the first retest speed is executed during the process of the engine speed decreasing from the initial speed to the target speed. If it is determined that the deviation of the retested data is less than or equal to the first threshold, then the first retested data and the second retested data are used as the test data corresponding to the first rotational speed.

5. The method according to claim 1, characterized in that, The test data includes third measurement data, and obtaining the test data corresponding to the first rotational speed includes: Obtain the maximum net torque corresponding to the first rotational speed; During the process of the torque corresponding to the first speed of the engine decreasing from the maximum net torque to the target torque, at least one first torque is generated according to the obtained second step value, and the third measurement data corresponding to each first torque is collected.

6. The method according to claim 1, characterized in that, When the oil test is the first oil test, after obtaining the test data corresponding to the first rotational speed, the method further includes: At least one test chart is generated based on the test data corresponding to at least one of the first rotational speeds.

7. A testing apparatus for engine oil, characterized in that, include: The settings module is used to set the oil test environment based on the test parameters corresponding to each oil test. The processing module is used to preset the engine speed within the set oil test environment and test the oil in the engine at the preset speed. The processing module is specifically used for: Within a first speed range, the engine speed is adjusted to generate at least one first speed; the engine is run at the first speed and test data corresponding to the first speed is obtained; The first speed range is the interval between the initial speed and the target speed. Adjusting the engine speed, and the processing module generating at least one first speed, includes: During the process of the engine speed decreasing from the initial speed to the target speed, at least one first speed is generated according to the set first step length value; The test data includes first measurement data, and the processing module acquires the test data corresponding to the first rotational speed, including: Collect the first measurement data corresponding to the first rotational speed; After the engine speed decreases from the initial speed to the target speed, the processing module is further configured to: During the process of the engine speed increasing from the target speed to the initial speed, at least one of the first speeds is acquired; The test data also includes second measurement data, and obtaining the test data corresponding to the first rotational speed includes: Collect the second measurement data corresponding to the first rotational speed; Based on the first measurement data and the second measurement data corresponding to each first rotational speed, a data deviation corresponding to each first rotational speed is generated; Determine whether each of the data deviations is less than or equal to a first threshold; If it is determined that each of the data deviations is less than or equal to the first threshold, then the first measurement data and the second measurement data corresponding to each of the first rotation speeds are taken as the test data corresponding to the first rotation speed.

8. A storage medium, characterized in that, The storage medium includes a stored program, wherein, when the program is executed, it controls the device containing the storage medium to perform the testing method for the engine oil according to any one of claims 1 to 6.

9. A benchtop device, comprising a memory and a processor, wherein the memory is used to store information including program instructions, and the processor is used to control the execution of the program instructions, characterized in that, When the program instructions are loaded and executed by the processor, they implement the testing method for engine oil according to any one of claims 1 to 6.

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