Device for testing a lubricating system of an automobile engine

Abstract

The present disclosure is a kind of detection device of automobile engine lubrication system, belong to engine lubrication system technical field.The detection device includes first detection component, plugging component and drive component, first detection component includes first oil pump station, first temperature control component and first detection meter.First oil pump station is used to output oil, first temperature control component is communicated with the outlet of first oil pump station, first detection meter includes flow meter, first detection meter is located between first temperature control component and cylinder body total oil circuit, plugging component is used to plug the second end of cylinder body total oil circuit, and optionally plug any one or more cylinder body branch oil circuit, drive component is drivingly connected with the crankshaft of engine.By plugging component, different cylinder body branch oil circuit is plugged, at the same time, the flow of oil in unsealed oil circuit can be detected by first detection meter, and then the flow value in corresponding oil circuit of different elements in cylinder body can be obtained, and the result accuracy of lubrication test can be improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of engine lubrication system, in particular to a detection device of an automobile engine lubrication system. BACKGROUND

[0002] In the current automobile industry, how to reduce fuel consumption has become one of the main research directions of automobile research and development. The engine lubrication system provides engine oil with appropriate flow and pressure parameters, which is a main measure for the lubrication system to help vehicles reduce fuel consumption. The setting of flow and pressure parameters of the lubrication system is mostly explored through lubrication tests.

[0003] In related technologies, the lubrication test generally connects a flow meter and a pressure sensor in the total oil passage connected after the oil pump. By controlling the oil pump, the engine oil is sent to the total oil passage and the subsequent branch oil passage. During the pumping process of the engine oil, the flow of the total oil passage is detected by the flow meter, and the pressure of the total oil passage is detected by the pressure sensor.

[0004] In this way, only the engine oil flow and pressure parameters of the whole engine can be detected, and the engine oil flow and pressure parameters of each specific part inside the engine cannot be measured, resulting in low accuracy of the lubrication test results. SUMMARY

[0005] The present disclosure provides a detection device of an automobile engine lubrication system, which can solve the above technical problems existing in related technologies. The technical solution is as follows:

[0006] The automobile engine lubrication system comprises a cylinder body oil passage of an engine, and the cylinder body oil passage comprises a cylinder body total oil passage and a plurality of cylinder body branch oil passages;

[0007] The detection device comprises a first detection assembly, a plugging assembly and a driving assembly;

[0008] The first detection assembly comprises a first oil pump station, a first temperature control assembly and a first detection meter;

[0009] The first oil pump station is used for outputting engine oil, the first temperature control assembly is in communication with the outlet of the first oil pump station, the first detection meter comprises a flow meter, and the first detection meter is located between the first temperature control assembly and the first end of the cylinder body total oil passage;

[0010] The plugging assembly is used for plugging the second end of the cylinder body total oil passage, and optionally plugging any one or more of the cylinder body branch oil passages;

[0011] The driving assembly is in driving connection with a crankshaft of the engine.

[0012] In some possible implementations, the plugging assembly includes a first plugging member detachably connected with the second end of the cylinder main oil passage, and the first plugging member is configured to block the communication between the cylinder main oil passage and the subsequent oil passage.

[0013] In some possible implementations, the plugging assembly includes at least one second plugging member, each of which is detachably connected with any of the cylinder branch oil passages, and each of the second plugging members is configured to block the connected cylinder branch oil passage.

[0014] In some possible implementations, the first temperature control assembly includes a first water pump, a first heater and a first heat exchanger, the first heater is configured to increase the temperature of the liquid flowing through the first water pump, the first heat exchanger is connected with the first water pump to form a first liquid passage, the first heat exchanger is connected with the outlet of the first oil pump station and the first end of the cylinder main oil passage to form a second liquid passage, and the first heat exchanger is configured to exchange heat between the first liquid passage and the second liquid passage.

[0015] In some possible implementations, the automobile engine lubrication system further includes a cylinder head oil passage of the engine, and the cylinder head oil passage includes a cylinder head main oil passage and a plurality of cylinder head branch oil passages.

[0016] The detection device further includes a second detection assembly, and the second detection assembly includes a second oil pump station, a second temperature control assembly, a fixing tool and a second detection meter.

[0017] The second oil pump station is configured to output engine oil, the second temperature control assembly is connected with the outlet of the second oil pump station, the fixing tool is connected with the cylinder head of the engine, and the fixing tool has a liquid passage, two ports of the liquid passage are respectively connected with the second temperature control assembly and the cylinder head main oil passage, and the second detection meter includes a flow meter and is located between the second temperature control assembly and the fixing tool.

[0018] The plugging assembly is further configured to selectively plug any one or more of the cylinder head branch oil passages.

[0019] The driving assembly is further connected with a timing chain of the cylinder head of the engine.

[0020] In some possible implementations, the plugging assembly further includes a third plugging member, the third plugging member is detachably connected with one of the cylinder head branch oil passages, and the third plugging member is configured to block the connected cylinder head branch oil passage.

[0021] In some possible implementation manners, the second temperature control assembly comprises a second water pump, a second heater and a second heat exchanger, the second heater is configured to increase the temperature of liquid flowing through the second water pump, the second heat exchanger is connected with the second water pump to form a third liquid passage, the second heat exchanger is connected with an outlet of the second oil pump station and one port of the liquid passage to form a fourth liquid passage, and the second heat exchanger is configured to exchange heat between the third liquid passage and the fourth liquid passage.

[0022] In some possible implementation manners, the second detection assembly further comprises a protective cover, the protective cover is opposite to the timing chain of the cylinder head and connected with the fixed tool.

[0023] In some possible implementation manners, the automobile engine lubricating system further comprises an oil pump post-oil passage, the oil pump post-oil passage comprises a first oil pump post-oil sub-passage and a second oil pump post-oil sub-passage.

[0024] The detection device further comprises a third detection assembly, the third detection assembly comprises a first adapter and a third detection meter.

[0025] The first adapter has a first oil outlet and a first oil inlet, the first oil outlet is connected with the first oil pump post-oil sub-passage, the first oil inlet is connected with the second oil pump post-oil sub-passage, the third detection meter comprises a flow meter, and the third detection meter is connected with the first oil outlet and the first oil inlet of the first adapter respectively.

[0026] In some possible implementation manners, the automobile engine lubricating system further comprises a main oil passage and a supercharger oil passage, the main oil passage and the supercharger oil passage are connected with the second oil pump post-oil sub-passage, and the main oil passage comprises a first sub-oil passage and a second sub-oil passage.

[0027] The detection device further comprises a fourth detection assembly, the fourth detection assembly comprises a second adapter and a fourth detection meter.

[0028] The second adapter has a second oil outlet and a second oil inlet, the second oil outlet is connected with the first sub-oil passage, and the second oil inlet is connected with the second sub-oil passage, the fourth detection meter comprises a flow meter, and the fourth detection meter is connected with the second oil outlet and the second oil inlet of the second adapter respectively.

[0029] The technical scheme provided by the embodiments of the present disclosure has at least the following beneficial effects:

[0030] The detection device provided by the embodiment of the present disclosure can block the cylinder body total oil path and the plurality of cylinder body branch oil paths when detecting the engine lubricating system of the automobile, so that the different cylinder body branch oil paths can be blocked by the blocking assembly, and the flow rate of the oil in the unblocked oil path can be detected by the first detection meter, and then the flow rate values of the oil in the paths corresponding to different elements in the cylinder body can be obtained, and the result accuracy of the lubricating test can be improved.

[0031] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not limiting to the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0033] Figure 1 is a structural schematic diagram of an automobile engine lubricating system provided by the embodiment of the present disclosure;

[0034] Figure 2 is a structural schematic diagram of a cylinder body oil path detection device provided by the embodiment of the present disclosure;

[0035] Figure 3 is a structural schematic diagram of a first temperature control assembly provided by the embodiment of the present disclosure;

[0036] Figure 4 is a structural schematic diagram of a first blocking piece provided by the embodiment of the present disclosure;

[0037] Figure 5 is a structural schematic diagram of a connecting flange provided by the embodiment of the present disclosure;

[0038] Figure 6 is a structural schematic diagram of a second blocking piece provided by the embodiment of the present disclosure;

[0039] Figure 7 is a structural schematic diagram of a cylinder head oil path detection device provided by the embodiment of the present disclosure;

[0040] Figure 8 is a structural schematic diagram of a first temperature control assembly provided by the embodiment of the present disclosure;

[0041] Figure 9 is a structural schematic diagram of a fixing tool provided by the embodiment of the present disclosure;

[0042] Figure 10is a structural schematic diagram of a main oil path detection device provided by an embodiment of the present disclosure.

[0043] Figure 11 is a structural schematic diagram of a post-oil pump oil path detection device provided by an embodiment of the present disclosure.

[0044] Reference signs:

[0045] 1, first detection assembly, 11, first oil pump station, 12, first temperature control assembly, 121, first water pump, 122, first heater, 123, first heat exchanger, 13, first detection meter;

[0046] 2, plugging assembly, 21, first plugging piece, 211, base, 212, protruding part, 22, second plugging piece, 23, third plugging piece;

[0047] 3, driving assembly, 31, dynamometer, 32, transmission shaft, 33, connecting flange;

[0048] 4, second detection assembly, 41, second oil pump station, 42, second temperature control assembly, 421, second water pump, 422, second heater, 423, second heat exchanger, 43, fixing tool, 43a, first side wall, 43b, second side wall, 431, liquid passage, 44, second detection meter, 45, protective cover;

[0049] 5, third detection assembly, 51, first adapter, 511, first oil outlet, 512, first oil inlet, 513, first mounting hole, 52, third detection meter;

[0050] 6, fourth detection assembly, 61, second adapter, 611, second oil outlet, 612, second oil inlet, 613, second mounting hole, 62, fourth detection meter;

[0051] 100, cylinder body oil path, 101, cylinder body total oil path, 102, cylinder body branch oil path;

[0052] 200, cylinder head oil path, 201, cylinder head total oil path, 202, cylinder head branch oil path;

[0053] 300, post-oil pump oil path, 301, first post-oil pump sub-oil path, 302, second post-oil pump sub-oil path, 303, oil pump, 304, oil filter, 305, adapter bolt, 400, main oil path, 401, first sub-oil path, 402, second sub-oil path, 500, supercharger oil path. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the embodiments of the present application will be described in further detail below with reference to the drawings.

[0055] The embodiment of the present disclosure provides a detection device of an automobile engine lubrication system. Figure 1 As shown in the figure, the automobile engine lubrication system comprises a cylinder body oil circuit 100, a cylinder cover oil circuit 200, an oil pump post oil circuit 300, a main oil circuit 400 and a supercharger oil circuit 500 of the engine. Wherein, one end of the oil pump post oil circuit 300 is connected with an oil pump 303 of the engine, the other end of the oil pump post oil circuit 300 is respectively connected with the main oil circuit 400 and the supercharger oil circuit 500 in communication, the supercharger oil circuit 500 is connected with a supercharger for conveying oil to the supercharger, the main oil circuit 400 is connected with the cylinder body oil circuit 100 in communication, and the cylinder body oil circuit 100 is connected with the cylinder cover oil circuit 200 in communication.

[0056] Next, the detection process of the cylinder body oil circuit 100 is exemplarily described.

[0057] As shown in the figure, Figure 2 The cylinder body oil circuit 100 can comprise a cylinder body total oil circuit 101 and a plurality of cylinder body branch oil circuits 102. In the engine lubrication system, one end of the cylinder body total oil circuit 101 is connected with the main oil circuit 400, the other end of the cylinder body total oil circuit 101 is connected with a cylinder cover total oil circuit 201, and the plurality of cylinder body branch oil circuits 102 are connected with the cylinder body total oil circuit 101 in communication.

[0058] The plurality of cylinder body branch oil circuits 102 can comprise a crankshaft oil circuit, a connecting rod mechanism oil circuit and an oil nozzle oil circuit. The present disclosure does not specifically limit the number of the three oil circuits, which can be matched and set according to the number of cylinders, cylinder size and other parameters in different engines. Each cylinder body branch oil circuit 102 has a pressure detection meter, which can detect the pressure value of the oil in each cylinder body branch oil circuit 102.

[0059] As shown in the figure, Figure 2 In some embodiments, the detection device comprises a first detection assembly 1, a plugging assembly 2 and a driving assembly 3.

[0060] The first detection assembly 1 can comprise a first oil pump station 11, a first temperature control assembly 12 and a first detection meter 13. The first oil pump station 11 is used to output oil, and the output power of the first oil pump station 11 can be adjusted to simulate the pressure and other parameters of the oil reaching the cylinder body oil circuit 100 under different engine working conditions and use scenarios.

[0061] As shown in the figure, Figure 3As shown, the first temperature control assembly 12 can include a first water pump 121, a first heater 122 for increasing the temperature of the liquid flowing through the first water pump 121, and a first heat exchanger 123 in communication with the first water pump 121 to form a first liquid passage 123a, and in communication with the outlet of the first oil pump station 11 and the first end of the cylinder total oil passage 101 to form a second liquid passage 123b, and the first heat exchanger 123 is used for heat exchange between the first liquid passage 123a and the second liquid passage 123b.

[0062] In this way, the first temperature control assembly 12 can adjust the temperature of the heat exchange liquid to adjust the temperature of the engine oil input into the cylinder oil passage 100, and then simulate the influence of engine oil with different viscosities on the flow of each oil passage in the cylinder oil passage 100. Generally, when the temperature of the engine oil increases, the molecular motion of the engine oil accelerates, the interaction between the molecules weakens, and the flowability of the engine oil increases, that is, the viscosity decreases; when the temperature of the engine oil decreases, the molecular motion of the engine oil slows down, the interaction between the molecules strengthens, and the flowability of the engine oil decreases, that is, the viscosity increases.

[0063] If the viscosity is too low, the lubrication effect of the engine oil in the engine may decrease, and the wear and friction loss of the engine components may increase; if the viscosity is too high, the flowability of the engine oil in the engine may decrease, which may affect the delivery and distribution of the engine oil, and then affect the lubrication and heat dissipation effect of the engine. Therefore, in the present disclosure, when the temperature of the engine oil is within a specified range, whether the flow of each component corresponding to the oil passage meets the respective use scenarios of the components is detected, and then the structure, size, assembly relationship, and other parameters of the components can be adjusted according to the difference between the flow detection value and the flow expected value.

[0064] The first detection meter 13 can include a flow meter, which is located between the first temperature control assembly 12 and the first end of the cylinder total oil passage 101, and the two ends of the flow meter are connected to the first temperature control assembly 12 and the cylinder total oil passage 101, respectively, and the flow meter is used to detect the flow value of the engine oil at the location.

[0065] The first detection meter 13 can also include a pressure gauge, which is used to detect the pressure value of the engine oil at the location. Within a certain range, the greater the viscosity of the engine oil (that is, the higher the viscosity), the greater the resistance the engine oil will encounter when flowing in the engine, and therefore the greater the engine oil pressure generated.

[0066] The plugging assembly 2 is used to plug the second end of the cylinder total oil passage 101, and optionally plug any one or more of the cylinder branch oil passages 102.

[0067] Reference Figure 2As shown, in some embodiments, the plugging assembly 2 can include a first plugging piece 21, which is detachably connected with the second end of the cylinder main oil passage 101, and is used to plug the communication between the cylinder main oil passage 101 and the subsequent cylinder head main oil passage 201.

[0068] Referring to Figure 4 As shown, the first plugging piece 21 can include a base 211 and a protruding part 212, which are connected together, and the protruding part 212 can be located in the second end pipeline of the cylinder main oil passage 101, thereby realizing the plugging of the second end of the cylinder main oil passage 101 by the first plugging piece 21. The structure and size of the first plugging piece 21 are adapted to the structure and size of the second end of the cylinder main oil passage 101.

[0069] Referring to Figure 2 As shown, in some embodiments, the plugging assembly 2 can further include at least one second plugging piece 22, each of which is detachably connected with any cylinder branch oil passage 102, and is used to plug the connected cylinder branch oil passage 102.

[0070] In some embodiments, the driving assembly 3 is drivingly connected with the crankshaft of the engine, and can include a dynamometer 31, a transmission shaft 32, and a connecting flange 33. The dynamometer 31 is drivingly connected with the transmission shaft 32, and the connecting flange 33 (as shown) is used to connect the transmission shaft 32 and the crankshaft of the cylinder. In this way, the dynamometer 31 drives the crankshaft of the cylinder to rotate, so as to simulate the working state of the internal elements of the cylinder. Figure 5

[0071] The detection process of the flow of each oil passage of the cylinder is as follows:

[0072] First, the first plugging piece 21 is connected with the second end of the cylinder main oil passage 101, and the first oil pump station 11 is started. Then, the first temperature control assembly 12 is adjusted by a relevant element (for example, a Proportion Integration Differentiation (PID) temperature controller) to adjust the oil temperature to a specified temperature and keep it, and after all the oil passages are filled with oil, the non-detected cylinder branch oil passage 102 is plugged.

[0073] In the case where the crankshaft oil passage, the connecting rod mechanism oil passage, and the injection nozzle oil passage are not plugged, the crankshaft oil passage pressure value P1, the connecting rod mechanism oil passage pressure value P2, the injection nozzle oil passage pressure value P3, and the flow value V1 detected by the first detection meter 13 are obtained, that is, the flow value of the cylinder main oil passage 101 is V1.

[0074] ​The second blocking member 22 is used to block the connecting rod mechanism oil passage and the fuel injection nozzle oil passage, and the output power of the first oil pump station 11 is adjusted so that the main shaft oil passage pressure value is P1. In this way, in the case that the connecting rod mechanism oil passage and the fuel injection nozzle oil passage are blocked and the main shaft oil passage pressure value is P1, the flow value V2 detected by the first detection meter 13 is obtained, that is, the flow value of the main shaft oil passage is V2.

[0075] The second blocking member 22 is used to block the main shaft oil passage and the fuel injection nozzle oil passage, and the output power of the first oil pump station 11 is adjusted so that the connecting rod mechanism oil passage pressure value is P2. In this way, in the case that the main shaft oil passage and the fuel injection nozzle oil passage are blocked and the connecting rod mechanism oil passage pressure value is P2, the flow value V3 detected by the first detection meter is obtained, that is, the flow value of the connecting rod mechanism oil passage is V3.

[0076] The second blocking member 22 is used to block the main shaft oil passage and the connecting rod mechanism oil passage, and the output power of the first oil pump station 11 is adjusted so that the fuel injection nozzle oil passage pressure value is P3. In this way, in the case that the main shaft oil passage and the connecting rod mechanism oil passage are blocked and the fuel injection nozzle oil passage pressure value is P3, the flow value V4 detected by the first detection meter is obtained, that is, the flow value of the fuel injection nozzle oil passage is V4. Alternatively, the flow value V4 of the phaser oil passage is obtained by the calculation formula V4 = V1-V2-V3.

[0077] The second blocking member 22 is adapted to the structure, size and other parameters of the crankshaft oil passage, the connecting rod mechanism oil passage and the fuel injection nozzle oil passage. For example, the second blocking member 22 for blocking the connecting rod mechanism oil passage can be a crankshaft-connecting rod oil hole blocking tool, as shown in FIG. 2. Figure 6

[0078] In some embodiments, the first detection assembly 1 further comprises a plurality of cameras and a controller, each camera is opposite to the oil outlet of one cylinder branch oil passage 102 and collects image information of the opposite oil outlet. The second blocking member 22 has an electronic valve for controlling the opening and closing of the second blocking member 22. The controller can be used to:

[0079] Control the electronic valves of all second blocking members 22 to open.

[0080] Obtain the image signals collected by the plurality of cameras in a specified period, and input the image information of each camera into the oil outlet detection model respectively, and output the oil outlet condition of the oil outlet of the corresponding cylinder branch oil passage 102 corresponding to each camera by each oil outlet detection model, the oil outlet condition includes no oil outlet or oil outlet.

[0081] If the oil outlet conditions of all oil outlets of the cylinder branch oil passages 102 are oil outlet, control the electronic valve of the specified second blocking member 22 to open, and the electronic valves of the other second blocking members 22 to close.

[0082] ​The plurality of second blocking members 22 can be divided into three groups according to different oil paths, wherein the first group of second blocking members 22 are second blocking members 22 on the crankshaft oil path, the second group of second blocking members 22 are second blocking members 22 on the connecting rod mechanism oil path, and the third group of second blocking members 22 are second blocking members 22 on the fuel injection nozzle oil path.

[0083] If the oil output of the oil outlet of all the cylinder block branch oil paths 102 is oil output, and the flow detection object is the crankshaft oil path, the controller controls the electronic valve of the first group of second blocking members 22 to open, and the electronic valves of the second group of second blocking members 22 and the third group of second blocking members 22 to close.

[0084] The case where the flow detection object is the connecting rod mechanism oil path or the fuel injection nozzle oil path is similar to the above-mentioned embodiments, which will not be described here.

[0085] Next, the detection process of the cylinder head oil path 200 will be described by way of example.

[0086] Referring to Figure 7 The cylinder head oil path 200 can include a cylinder head main oil path 201 and a plurality of cylinder head branch oil paths 202. In the engine lubrication system, one end of the cylinder head main oil path 201 is connected to the cylinder block main oil path 101, and the other end of the cylinder head main oil path 201 is a closed end, and the plurality of cylinder head branch oil paths 202 are connected to the cylinder head main oil path 201.

[0087] The plurality of cylinder head branch oil paths 202 can include a camshaft oil path, a hydraulic tappet oil path, and a phase shifter oil path. The number of each of the three oil paths is not specifically limited in the present disclosure, and can be matched and set according to parameters such as the number of cylinders and the size of the cylinder head in different engines. Each cylinder head branch oil path 202 has a pressure detection gauge, which can detect the pressure value of the oil in each cylinder head branch oil path 202.

[0088] Referring to Figure 7 In some embodiments, the detection device further includes a second detection assembly 4, which can include a second oil pump station 41, a second temperature control assembly 42, a fixed tooling 43, and a second detection gauge 44.

[0089] The second oil pump station 41 is used to output oil, and the output power of the second oil pump station 41 can be adjusted to simulate the pressure and other parameters of the oil reaching the cylinder head oil path 200 under different engine working conditions and use scenarios.

[0090] Referring to Figure 8As shown, the second temperature control assembly 42 can include a second water pump 421, a second heater 422 for increasing the temperature of the liquid flowing through the second water pump 421, and a second heat exchanger 423 in communication with the second water pump 421 to form a third liquid passage 423a, and in communication with an outlet of the second oil pump station 41 and one port of the liquid passage 431 to form a fourth liquid passage 423b, and the second heat exchanger 423 is configured to exchange heat between the third liquid passage 423a and the fourth liquid passage 423b.

[0091] In this way, the second temperature control assembly 42 can adjust the temperature of the heat exchange liquid to adjust the temperature of the oil in the cylinder head oil circuit 200, thereby simulating the effect of oil of different viscosities on the flow of oil in the cylinder head oil circuit 200.

[0092] Referring to Figure 9 As shown, the first side wall 43a of the fixing tool 43 is connected to the cylinder head of the engine, and the fixing tool 43 has a liquid passage 431 in communication with the second temperature control assembly 42 and the cylinder head main oil circuit 201 at two ports. The fixing tool 43 is used to position and connect the cylinder head, ensuring that the cylinder head maintains the correct position and stability during the oil flow measurement process, thereby avoiding adverse phenomena such as movement and deformation of the cylinder head, which can affect the normal transmission of the drive assembly 3 and the timing chain.

[0093] The second detection meter 44 includes a flow meter, and the second detection meter 44 is located between the second heat exchanger 42 and the fixing tool 43, and the flow meter is connected to the second heat exchanger 42 and the fixing tool 43 at two ends. The flow meter is used to detect the flow rate of the oil at the location.

[0094] The second detection meter 44 can also include a pressure gauge for detecting the pressure of the oil at the location. Within a certain range, the greater the viscosity of the oil (i.e., the higher the viscosity), the greater the resistance the oil experiences when flowing inside the engine, and therefore the greater the oil pressure generated.

[0095] The blocking assembly 2 is used to selectively block any one or more of the cylinder head branch oil circuits 202.

[0096] In some embodiments, the blocking assembly 2 further includes a third blocking piece 23 that can be detachably connected to one of the cylinder head branch oil circuits 202 for blocking the connected cylinder head branch oil circuit 202.

[0097] In some embodiments, the driving assembly 3 is connected with the timing chain of the engine cylinder head. The connecting flange 33 is used to connect the driving shaft 32 and the driving shaft of the timing chain of the cylinder head, so as to realize the rotation of the timing chain of the cylinder head driven by the dynamometer 31, so as to simulate the working state of the internal elements of the cylinder head.

[0098] Referring to Figure 7 In some embodiments, the second detection assembly 4 can further include a protective cover 45 opposite to the timing chain of the cylinder head and connected with the second side wall 43b of the fixed tool 43. The protective cover 45 is connected with the driving shaft of the timing chain, so as to fix the driving shaft of the timing chain. The protective cover 45 can also avoid the contact between the personnel and the rotating timing chain by mistake, so as to avoid the personal injury of the personnel and improve the safety of the detection device.

[0099] The detection process of the flow of each oil passage of the cylinder head is as follows:

[0100] Firstly, the second oil pump station 41 is started. Then, the second temperature control assembly 42 is adjusted by the related elements (for example, a PID temperature controller) to adjust the oil temperature to the specified temperature and keep it, and after all the oil passages are filled with oil, the non-detection cylinder head branch oil passage 202 is blocked.

[0101] In the case that the camshaft oil passage, the hydraulic tappet oil passage and the phase adjuster oil passage are not blocked, the camshaft oil passage pressure value P4, the hydraulic tappet oil passage pressure value P5, the phase adjuster oil passage pressure value P6 and the flow value V5 detected by the second detection meter 44 are obtained, that is, the flow value of the total oil passage 201 of the cylinder head is V5.

[0102] The hydraulic tappet oil passage and the phase adjuster oil passage are blocked by the third blocking piece 23, and the output power of the second oil pump station 41 is adjusted so that the camshaft oil passage pressure value is P4. In this way, in the case that the hydraulic tappet oil passage and the phase adjuster oil passage are blocked and the camshaft oil passage pressure value is P4, the flow value V6 detected by the second detection meter 44 is obtained, that is, the flow value of the camshaft oil passage is V6.

[0103] The camshaft oil passage and the phase adjuster oil passage are blocked by the third blocking piece 23, and the output power of the second oil pump station 41 is adjusted so that the hydraulic tappet oil passage pressure value is P5. In this way, in the case that the camshaft oil passage and the phase adjuster oil passage are blocked and the hydraulic tappet oil passage pressure value is P5, the flow value V7 detected by the second detection meter 44 is obtained, that is, the flow value of the hydraulic tappet oil passage is V7.

[0104] The camshaft oil passage and the hydraulic tappet oil passage are blocked by the third blocking member 23, and the output power of the second oil pump station 41 is adjusted so that the phase adjuster oil passage pressure value is P6. In this way, in the case where the camshaft oil passage and the hydraulic tappet oil passage are blocked and the phase adjuster oil passage pressure value is P6, the flow value V8 detected by the second detection meter 44 is obtained, that is, the flow value of the phase adjuster oil passage is V8. Alternatively, it is obtained by the calculation formula V8 = V5-V6-V7 that the flow value of the phase adjuster oil passage is V8.

[0105] In some embodiments, the second detection assembly 4 can further include a plurality of cameras and a controller, each camera is opposite to an oil outlet of one cylinder head branch oil passage 202 and collects image information of the opposite oil outlet. The third blocking member 23 has an electronic valve for controlling the opening and closing of the third blocking member 23. The controller can be used to:

[0106] Control all electronic valves to be opened.

[0107] Obtain image signals of a specified time length collected by the plurality of cameras in a specified period, and input the image information of each camera into an oil outlet detection model respectively, and output the oil outlet condition of the oil outlet of the corresponding cylinder head branch oil passage 202 corresponding to the corresponding camera by each oil outlet detection model, the oil outlet condition includes no oil outlet or oil outlet.

[0108] If the oil outlet conditions of all oil outlets of the cylinder head branch oil passage 202 are oil outlet, control the electronic valve of the specified third blocking member 23 to be opened, and the electronic valves of the other third blocking members 23 to be closed.

[0109] The plurality of third blocking members 23 can be divided into three groups according to different oil passages, wherein the first group of third blocking members 23 are the third blocking members 23 on the camshaft oil passage, the second group of third blocking members 23 are the third blocking members 23 on the hydraulic tappet oil passage, and the third group of third blocking members 23 are the third blocking members 23 on the phase adjuster oil passage.

[0110] If the oil outlet conditions of all oil outlets of the cylinder head branch oil passage 202 are oil outlet, and the flow detection object is the camshaft oil passage, the controller controls the electronic valves of the first group of third blocking members 23 to be opened, and the electronic valves of the second group of third blocking members 23 and the third group of third blocking members 23 to be closed.

[0111] The case where the flow detection object is the hydraulic tappet oil passage or the phase adjuster oil passage is similar to the above-mentioned embodiments, which will not be described here.

[0112] Next, the detection process of the oil pump rear oil passage 300 is exemplarily described.

[0113] The oil pump post oil path 300 refers to the oil path after the oil passes through the oil pump 303 and the oil filter 304. The oil pump post oil path 300 includes a first oil pump post sub-oil path 301 and a second oil pump post sub-oil path 302. The oil flows from the first oil pump post sub-oil path 301 to the second oil pump post sub-oil path 302 after leaving the oil pump 303 and the oil filter 304.

[0114] In some embodiments, the detection device further includes a third detection assembly 5, which includes a first adapter 51 and a third detection meter 52.

[0115] The first adapter 51 has a first oil outlet 511 and a first oil inlet 512. The first oil outlet 511 is connected to the first oil pump post sub-oil path 301, and the first oil inlet 512 is connected to the second oil pump post sub-oil path 302.

[0116] Referring to Figure 11 The first adapter 51 can be located between the oil pump 301 and the oil filter 302. The oil pump 301 and the oil filter 302 are connected by an adapter bolt 305, and the first adapter 51 is fixed between the oil pump 301 and the oil filter 302. The oil flows from the oil pump 301 through the channel inside the adapter bolt 305 into the oil filter 302, and then flows out of the oil filter 302 and to the first oil outlet 511.

[0117] The first adapter 51 can also include a plurality of first mounting holes 513 for mounting a pressure sensor to detect the pressure value at the first oil outlet 511 or the first oil inlet 512. By obtaining and calculating the pressure difference between the first oil outlet 511 and the first oil inlet 512, the influence of the oil pressure loss caused by the first adapter 51 itself on the detection of the oil pump post oil path 300 can be reduced.

[0118] The third detection meter 52 can include a flow meter located between the first oil outlet 511 and the first oil inlet 512 of the first adapter 51, and the two ends of the flow meter are connected to the first oil outlet 511 and the first oil inlet 512, respectively. The flow meter is used to detect the flow rate of the oil at the location.

[0119] The third detection meter 52 can also include a pressure measuring meter, which can be located at the first mounting hole 513, and the pressure measuring meter is used to detect the pressure value of the oil at the location. Within a certain range, the greater the viscosity of the oil (i.e., the higher the viscosity), the greater the resistance the oil experiences when flowing inside the engine, and therefore the greater the oil pressure generated.

[0120] The detection process of the oil pump post oil path flow is as follows:

[0121] First, start the oil pump 301.

[0122] After all the oil passages (the cylinder block oil passage 100, the cylinder head oil passage 200, the main oil passage 400, and the supercharger oil passage 500) subsequent to the post-oil pump oil passage 300 are filled with oil, the flow value V9 detected by the third detection meter 52 is obtained, that is, the flow value of the post-oil pump oil passage 300 is V9.

[0123] Next, the detection process of the main oil passage 400 is exemplarily described.

[0124] The automobile engine lubrication system further comprises the main oil passage 400 and the supercharger oil passage 500, and the main oil passage 400 and the supercharger oil passage 500 are in communication with the post-oil pump oil passage 300. The main oil passage 400 comprises a first sub-oil passage 401 and a second sub-oil passage 402.

[0125] Referring to Figure 10 In some embodiments, the detection device further comprises a fourth detection assembly 6, which can comprise a second adapter 61 and a fourth detection meter 62.

[0126] The second adapter 61 has a second oil outlet 611 and a second oil inlet 612, the second oil outlet 611 is connected with the first sub-oil passage 401, and the second oil inlet 612 is connected with the second sub-oil passage 402.

[0127] The main oil passage 400 has an oil cooler, the oil cooler can be removed, and the second adapter 61 is installed at the position corresponding to the oil cooler. Alternatively, the main oil passage 400 can be split into two parts, one part (i.e., the first sub-oil passage 401) is connected with the second oil outlet 611, and the other part (i.e., the second sub-oil passage 402) is connected with the second oil inlet 612.

[0128] The second adapter 61 can further comprise a plurality of second mounting holes 613, the second mounting holes 613 are used to mount pressure sensors to detect the pressure values at the second oil outlet 611 or the second oil inlet 612. By obtaining and calculating the pressure difference between the second oil outlet 611 and the second oil inlet 612, the influence of the oil pressure loss caused by the second adapter 61 itself on the detection of the post-oil pump oil passage 300 can be reduced.

[0129] The fourth detection meter 62 can comprise a flow meter, the flow meter is located between the second oil outlet 611 and the second oil inlet 612 of the second adapter 61, and the two ends of the flow meter are connected with the second oil outlet 611 and the second oil inlet 612, respectively.

[0130] The fourth detection gauge 62 can also include a pressure gauge, which can be located at the second mounting hole 613 and used to detect the pressure value of the engine oil at the location. Within a certain range, the greater the viscosity of the engine oil (i.e., the higher the viscosity), the greater the resistance to the flow of the engine oil inside the engine, and thus the greater the corresponding engine oil pressure generated.

[0131] The detection process of the main oil passage flow is as follows:

[0132] First, the engine oil pump 301 is started.

[0133] After all the oil passages of the engine are filled with engine oil, the flow value V10 detected by the fourth detection gauge 62 is obtained, i.e., the flow value of the main oil passage 400 is V10.

[0134] In the description of the present specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present disclosure. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0135] It can be understood that "multiple" in the present disclosure means two or more, and other quantifiers are similar. The association relationship of the associated objects is described, which means that there can be three relationships, for example, A and / or B, which can represent the existence of A alone, the existence of A and B, and the existence of B alone. The character " / " generally represents an "or" relationship between the associated objects before and after it. The singular form "a", "said" and "the" are also intended to include the plural form, unless the context clearly indicates otherwise.

[0136] It can be further understood that the terms "first", "second", and the like are used to describe various information, but these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not represent a specific order or importance. In fact, the expressions "first", "second", and the like can be used interchangeably. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present disclosure.

[0137] It should be further understood that the terms "center", "longitudinal", "lateral", "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are used to indicate the orientation on the drawings as presented in the patent document and are merely used for convenience and do not indicate or imply necessary or required orientation of the device or element thereof, constructed and operative in a particular orientation.

[0138] It should be further understood that the terms "mounting", "connecting", "connecting", "fixing" and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral molding; can be mechanical connection, can also be electrical connection or can communicate with each other; can be direct connection between the two without other components, can also be indirect connection through intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0139] It should be further understood that although the operations in the embodiments of the present disclosure are described in a specific order in the drawings, it should not be understood as requiring the specific order or serial order shown, or requiring all the operations shown to obtain the desired results. In a specific environment, multitasking and parallel processing can be advantageous.

[0140] Other embodiments of the present disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the aspects disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure following, in general, the principles of the present disclosure and including such departures from the present disclosure that come within known or customary practice within the art to which the present disclosure pertains. The specification and examples are to be regarded as illustrative only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

[0141] It should be understood that the present disclosure is not limited to the precise structures described and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A detection device for an automotive engine lubrication system, characterized in that, The automobile engine lubrication system comprises a cylinder oil circuit (100) of an engine, the cylinder oil circuit (100) comprising a cylinder main oil circuit (101) and a plurality of cylinder branch oil circuits (102); The detection device comprises a first detection assembly (1), a blocking assembly (2) and a driving assembly (3); The first detection assembly (1) comprises a first oil pump station (11), a first temperature control assembly (12) and a first detection meter (13); The first oil pump station (11) is used for outputting oil, the first temperature control assembly (12) comprises a first water pump (121), a first heater (122) and a first heat exchanger (123), the first heater (122) is used for increasing the temperature of liquid flowing through the first water pump (121), the first heat exchanger (123) is connected with the first water pump (121) to form a first liquid passage (123a), the first heat exchanger (123) is connected with the outlet of the first oil pump station (11) and the first end of the cylinder main oil circuit (101) to form a second liquid passage (123b), the first heat exchanger (123) is used for heat exchange between the first liquid passage (123a) and the second liquid passage (123b), and the first detection meter (13) comprises a flow meter and is located between the first temperature control assembly (12) and the first end of the cylinder main oil circuit (101); The blocking assembly (2) is used for blocking the second end of the cylinder main oil circuit (101) and optionally blocking any one or more of the cylinder branch oil circuits (102); The driving assembly (3) is in driving connection with a crankshaft of the engine.

2. The detection device of the automobile engine lubrication system according to claim 1, wherein The blocking assembly (2) comprises a first blocking piece (21), the first blocking piece (21) is detachably connected with the second end of the cylinder main oil circuit (101), and the first blocking piece (21) is used for blocking the communication between the cylinder main oil circuit (101) and a subsequent oil circuit.

3. The detection device of the automobile engine lubrication system according to claim 1, wherein The blocking assembly (2) comprises at least one second blocking piece (22), each second blocking piece (22) is detachably connected with any cylinder branch oil circuit (102) and used for blocking the connected cylinder branch oil circuit (102).

4. The detection device of the automobile engine lubrication system according to claim 1, wherein The automobile engine lubrication system further comprises a cylinder head oil circuit (200) of the engine, the cylinder head oil circuit (200) comprising a cylinder head main oil circuit (201) and a plurality of cylinder head branch oil circuits (202); The detection device further comprises a second detection assembly (4), the second detection assembly (4) comprising a second oil pump station (41), a second temperature control assembly (42), a fixing tool (43) and a second detection meter (44). The second oil pump station (41) is used for outputting oil, the second temperature control assembly (42) is communicated with the outlet of the second oil pump station (41), the fixed tooling (43) is connected with the cylinder head of the engine, and the fixed tooling (43) has a liquid channel (431), two ports of the liquid channel (431) are communicated with the second temperature control assembly (42) and the cylinder head oil gallery (201) respectively, and the second detection meter (44) comprises a flow meter, and the second detection meter (44) is located between the second temperature control assembly (42) and the fixed tooling (43). The plugging assembly (2) is further used for selectively plugging any one or more cylinder head branch oil paths (202). The driving assembly (3) is further connected with the timing chain transmission of the engine cylinder head.

5. The detection device of the automobile engine lubricating system according to claim 4, characterized in that, The plugging assembly (2) further comprises a third plugging piece (23), the third plugging piece (23) can be detachably connected with one cylinder head branch oil path (202) and is used for plugging the connected cylinder head branch oil path (202).

6. The detection device of the automobile engine lubricating system according to claim 4, characterized in that, The second temperature control assembly (42) comprises a second water pump (421), a second heater (422) and a second heat exchanger (423), the second heater (422) is used for increasing the temperature of the liquid flowing through the second water pump (421), the second heat exchanger (423) is communicated with the second water pump (421) to form a third liquid passage (423a), the second heat exchanger (423) is communicated with the outlet of the second oil pump station (41) and one port of the liquid channel (431) to form a fourth liquid passage (423b), and the second heat exchanger (423) is used for heat exchange between the third liquid passage (423a) and the fourth liquid passage (423b).

7. The detection device of the automobile engine lubricating system according to claim 4, characterized in that, The second detection assembly (4) further comprises a protective cover (45), the protective cover (45) is opposite to the timing chain of the cylinder head and is connected with the fixed tooling (43).

8. The detection device of the automobile engine lubricating system according to claim 1, characterized in that, The automobile engine lubricating system further comprises an oil pump post oil path (300), the oil pump post oil path (300) comprises a first oil pump post sub-oil path (301) and a second oil pump post sub-oil path (302); The detection device further comprises a third detection assembly (5), the third detection assembly (5) comprises a first adapter (51) and a third detection meter (52). The first adapter (51) has a first oil outlet (511) and a first oil inlet (512), the first oil outlet (511) is connected with the first oil pump post-sub-oil path (301), the first oil inlet (512) is connected with the second oil pump post-sub-oil path (302), the third detection meter (52) comprises a flow meter, and the third detection meter (52) is connected with the first oil outlet (511) and the first oil inlet (512) of the first adapter (51) respectively.

9. The detection device of the automobile engine lubricating system according to claim 8, characterized in that, The automobile engine lubricating system further comprises a main oil path (400) and a supercharger oil path (500), the main oil path (400) and the supercharger oil path (500) are connected with the second oil pump post-sub-oil path (302) in communication, and the main oil path (400) comprises a first sub-oil path (401) and a second sub-oil path (402). The detection device further comprises a fourth detection assembly (6), and the fourth detection assembly (6) comprises a second adapter (61) and a fourth detection meter (62). The second adapter (61) has a second oil outlet (611) and a second oil inlet (612), the second oil outlet (611) is connected with the first sub-oil path (401), the second oil inlet (612) is connected with the second sub-oil path (402), the fourth detection meter (62) comprises a flow meter, and the fourth detection meter (62) is connected with the second oil outlet (611) and the second oil inlet (612) of the second adapter (61) respectively.

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