CN114427598B - Method and device for evaluating lubrication state of various positions of gearbox and vehicle - Google Patents
Method and device for evaluating lubrication state of various positions of gearbox and vehicle Download PDFInfo
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- CN114427598B CN114427598B CN202210003802.2A CN202210003802A CN114427598B CN 114427598 B CN114427598 B CN 114427598B CN 202210003802 A CN202210003802 A CN 202210003802A CN 114427598 B CN114427598 B CN 114427598B
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- 238000005461 lubrication Methods 0.000 title claims abstract description 200
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 239000007921 spray Substances 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims description 18
- 238000004891 communication Methods 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 16
- 230000007547 defect Effects 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 35
- 238000013461 design Methods 0.000 description 25
- 238000005507 spraying Methods 0.000 description 18
- 238000005457 optimization Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0405—Monitoring quality of lubricant or hydraulic fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0456—Lubrication by injection; Injection nozzles or tubes therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/14—Receivers specially adapted for specific applications
Abstract
The invention relates to a method and a device for evaluating lubrication states of various positions of a gearbox and a vehicle. The invention collects first temperature parameters in the gearbox through a plurality of first temperature collection modules distributed at the positions of a meshing gear and a bearing in the gearbox; collecting a second temperature parameter of the environment where the gearbox is positioned by using a second temperature collecting module arranged outside the gearbox; correspondingly collecting and storing the collected first temperature parameter and the collected second temperature parameter; and traversing the difference between the first temperature parameter and the second temperature parameter, analyzing whether the difference exceeds a preset temperature threshold, judging that lubrication failure occurs, and judging the position of lubrication failure according to the position of the first temperature acquisition module which detects the lubrication failure when the lubrication failure occurs. The invention can sensitively detect lubrication failure, accurately judge the occurrence position of lubrication failure, and provide vehicle state related data, transmission oil quantity parameters and working state parameters of a spray lubrication mechanism so as to be convenient for analyzing the cause of lubrication failure.
Description
Technical Field
The invention relates to the field of gearbox lubrication state evaluation, in particular to a method and a device for evaluating lubrication states of all positions of a gearbox and a vehicle.
Background
The internal gear bearing of the gearbox needs to work in a lubrication state, and once the currently accepted parameters of the vehicle for evaluating the lubrication state of parts such as internal gears and bearings of the gearbox are temperatures during operation, the temperatures in the area are suddenly increased if local lubrication is lost or the lubricating oil capacity is insufficient. By monitoring local temperature change, the influence of factors such as gearbox structural design, working condition, lubricating oil selection, filling quantity calibration and the like on the local lubrication of the gearbox can be reflected, and particularly, the factors such as gear tooth design, gearbox shell structure guiding splash lubrication design, active lubrication spraying system design, influence of the oil filling quantity of the gearbox and the climbing angle of the whole vehicle on the lubrication of a front-row gear and the like are reflected.
However, due to the operational characteristics and structural limitations of gears in the gearbox, no good method is available at present for monitoring the temperature of various areas in the gearbox, particularly the temperature of the gear engagement surface, during real vehicle road test. At present, the method of measuring the local temperature of the shell of the gearbox by monitoring the whole oil temperature or infrared temperature measuring equipment can only objectively reflect the whole and local lubrication state of the gearbox. Even such methods are difficult to measure in real vehicle road test situations, and are not capable of reacting to local lubrication conditions by monitoring the temperature of the gearbox housing in real vehicle conditions due to excessive influence from external factors such as engine heat sources.
Disclosure of Invention
In order to solve the technical problems or at least partially solve the technical problems, the invention provides a method and a device for evaluating lubrication states of various positions of a gearbox and a vehicle.
In a first aspect, the present invention provides a method of evaluating lubrication status of various locations of a transmission, comprising:
collecting first temperature parameters in the gearbox through a plurality of first temperature collecting modules distributed at the positions of a meshing gear and a bearing in the gearbox;
collecting a second temperature parameter of the environment where the gearbox is positioned by using a second temperature collecting module arranged outside the gearbox;
correspondingly collecting and storing the collected first temperature parameter and the collected second temperature parameter;
traversing the first temperature parameters and the second temperature parameters, analyzing whether the value of each first temperature parameter minus the second temperature parameter at the same moment exceeds a preset temperature threshold value, judging that lubrication failure occurs, and judging the position where the lubrication failure occurs according to the first temperature acquisition module which detects the lubrication failure when the lubrication failure occurs.
Furthermore, the first temperature acquisition module is numbered, the installation position of the first temperature acquisition module is stored correspondingly to the number, and when lubrication failure is judged, the position where the lubrication failure occurs is judged according to the number of the first temperature acquisition module, which measures the first temperature parameter of the target for verifying the lubrication failure.
Further, an angle sensor arranged at the position of the gearbox is used for collecting an angle parameter formed by the gearbox relative to the horizontal plane; measuring coordinate parameters of the vehicle location through a GPS sensor arranged on the vehicle; acquiring real-time running speed parameters, engine rotating speed parameters and engine output power parameters of a vehicle through a vehicle-mounted control system; and recording an angle parameter, a coordinate parameter, a real-time running speed parameter, an engine rotating speed parameter and an engine output power parameter corresponding to the first temperature parameter and the second temperature parameter.
And further, restoring the state of the vehicle when the transmission is in lubrication failure according to the angle parameter, the coordinate parameter, the real-time running speed parameter, the engine rotating speed parameter and the engine output power parameter when the lubrication failure occurs, and judging whether the lubrication failure is influenced by the state of the vehicle.
Further, working state parameters of the spray lubrication mechanism and oil quantity parameters of the gearbox are obtained through a vehicle-mounted control system; recording working state parameters of the spray lubrication mechanism and oil quantity parameters of the gearbox corresponding to the first temperature parameter and the second temperature parameter; and judging whether the lubrication failure is the influence of insufficient oil or a defect factor of a lubrication system according to the working state parameters of the spray lubrication mechanism and the oil quantity parameters of the gearbox, which are acquired in the set time before and after the lubrication failure.
Furthermore, when the lubrication failure is detected, the spraying oil quantity is improved by controlling the spraying lubrication mechanism through the vehicle-mounted control system.
In a second aspect, the present invention provides an apparatus for evaluating lubrication status of various positions of a transmission, comprising: the first temperature acquisition module is distributed at the meshing gear and the bearing in the gearbox and used for acquiring first temperature parameters in the gearbox;
the second temperature acquisition module is arranged outside the gearbox and is used for detecting a second temperature parameter of the environment where the gearbox is positioned;
the first temperature acquisition module and the second temperature acquisition module are electrically connected with the processing module;
the processing module is electrically connected with the first wireless communication module, the first wireless communication module is in wireless connection with the second wireless communication module, the second wireless communication module is electrically connected with the vehicle-mounted control system, the vehicle-mounted control system traverses the first temperature parameter and the second temperature parameter, and whether lubrication failure occurs is judged according to whether the value obtained by subtracting the target second temperature parameter from the traversed target first temperature parameter exceeds a preset temperature threshold value.
Still further, the method includes: the system comprises a parameter acquisition module, a processing module and a vehicle-mounted control system, wherein the parameter acquisition module acquires a gearbox angle parameter, a coordinate parameter, a real-time running speed parameter, an engine rotating speed parameter, an engine output power parameter, a working state parameter of a spray lubrication mechanism and a gearbox oil quantity parameter in the running process of a vehicle, and the parameter acquisition module is electrically connected with the processing module and is electrically connected with the vehicle-mounted control system.
Still further, include power module, power module includes on-vehicle power supply unit and battery power supply unit, power module electric connection processing module, first temperature acquisition module, second temperature acquisition module and first wireless communication module.
In a third aspect, the present application provides a vehicle employing a device for evaluating lubrication state of each position of a transmission, comprising: and when the vehicle-mounted control system of the device for evaluating the lubrication state of each position of the gearbox judges that the gearbox fails in lubrication, the vehicle-mounted control system controls the spray lubrication mechanism to improve the oil injection quantity.
Compared with the prior art, the technical scheme provided by the embodiment of the invention has the following advantages:
in the working process of the gearbox, the meshing gear and the bearing are main bearing parts, and once lubrication is not in place, the parts are quickly heated up due to acting; according to the invention, the first temperature acquisition module arranged at the meshing gear and the bearing in the gearbox is used for acquiring the first temperature parameters of the meshing gear and the bearing in a targeted manner, the second temperature acquisition module is used for acquiring the second temperature parameters of the environment where the gearbox is positioned, whether lubrication failure occurs or not is judged by analyzing whether the difference between the first temperature parameters and the corresponding second temperature parameters exceeds a preset temperature threshold value at the same moment, and when lubrication failure occurs, the position of the lubrication failure is accurately positioned according to the position of the first temperature acquisition module which detects the lubrication failure. The lubrication failure measuring device has the advantages that more sensitive lubrication failure measurement is realized, further, the lubrication failure is dealt with more quickly, the damage to the gearbox caused by the lubrication failure to a deeper degree is avoided, the lubrication failure position is positioned, the subsequent maintenance and the searching of lubrication failure reasons are facilitated, and when the lubrication failure reasons are determined to be the design defects of the gearbox, the optimization of the design of the vehicle gearbox is guided.
According to the invention, an angle sensor arranged on the gearbox is used for measuring an angle parameter formed by the gearbox relative to a horizontal plane, a GPS sensor is used for measuring a coordinate parameter of a vehicle, and a vehicle-mounted control system is used for acquiring a real-time running speed parameter of the vehicle, an engine rotating speed parameter and an output power parameter; the lubrication failure of the gearbox is affected by the state of the vehicle, the state of the vehicle when the lubrication failure occurs in the gearbox is restored through the angle parameter, the coordinate parameter, the real-time running speed parameter, the engine rotating speed parameter and the engine output power parameter, and whether the lubrication failure is affected by the state of the vehicle is judged by combining the lubrication failure position and the state data of the vehicle. The lubrication failure reasons are conveniently analyzed and searched, influences of non-design reasons such as non-conventional vehicle states are eliminated in the vehicle design optimization stage, and the design is optimized; in the using stage of the vehicle, influences of non-design reasons such as non-conventional vehicle states are eliminated, and misdiagnosis of lubrication failure reasons is avoided.
Gearbox lubrication is affected by the amount of lubrication oil and the spray lubrication mechanism. According to the invention, the oil quantity parameter of the gearbox and the working state parameter of the spraying lubrication mechanism are obtained through the vehicle-mounted control system, and whether lubrication failure is insufficient oil quantity or the influence of the defect factors of the lubrication system is judged by combining the working state parameter of the spraying lubrication mechanism, the oil quantity parameter of the gearbox and the position of lubrication failure, which are collected in the set time before and after lubrication failure. The method is convenient for analyzing and searching the reasons of lubrication failure, in the vehicle design optimization stage, the influence of the oil quantity which is not the design reason is eliminated, whether lubrication failure is caused by the defect of the spraying lubrication mechanism in the design defect is judged, if so, the spraying lubrication mechanism is optimized, and in the vehicle use stage, whether lubrication failure is caused by the oil quantity of the gearbox and the working state of the spraying lubrication mechanism is judged.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a flow chart of a method for evaluating lubrication status of various positions of a transmission according to an embodiment of the present invention;
FIG. 2 is a flow chart of the cause of lubrication failure in combination with analysis of vehicle state related parameters and lubrication failure location according to an embodiment of the present invention;
FIG. 3 is a flowchart for analyzing lubrication failure reasons by combining a transmission oil quantity parameter and a transmission spray lubrication mechanism working state parameter and a lubrication failure position according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of an apparatus for evaluating lubrication status of various positions of a transmission according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a connection relationship of a first temperature acquisition module according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a first temperature acquisition module according to an embodiment of the present invention.
The reference numerals and meanings in the figures are as follows:
1. the device comprises a first temperature acquisition module 11, a fixing ring 12 and a temperature sensor.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Example 1
Referring to fig. 1, an embodiment of the present invention provides a method for evaluating lubrication status of various positions of a gearbox, including:
s100, acquiring first temperature parameters in the gearbox through a plurality of first temperature acquisition modules distributed at the positions of a meshing gear and a bearing in the gearbox;
s200, acquiring a second temperature parameter of the environment where the gearbox is located by using a second temperature acquisition module arranged outside the gearbox;
s300, correspondingly collecting and storing the collected first temperature parameter and second temperature parameter; traversing the corresponding first temperature parameter and second temperature parameter and making a difference;
s400, analyzing whether the value of each first temperature parameter minus the second temperature parameter at the same moment exceeds a preset temperature threshold value, and executing S500 if the value exceeds the preset temperature threshold value;
s500, judging that lubrication failure occurs, and judging the position where lubrication failure occurs according to the first temperature acquisition module which detects the lubrication failure when the lubrication failure occurs. In the specific implementation process, a unique number for identification is configured for each first temperature acquisition module, the installation position of each first temperature acquisition module is stored correspondingly to the number, and when lubrication failure is judged, the position where the lubrication failure occurs is judged according to the number of the first temperature acquisition module, which measures the first temperature parameter of the target for verifying the lubrication failure.
In a specific implementation process, in order to analyze the occurrence cause of lubrication failure, the method records relevant parameters of the vehicle state corresponding to the first temperature parameter and the second temperature parameter, records the oil quantity parameter of the gearbox and the working state parameter of a spraying lubrication mechanism of the gearbox, provides the recorded data during lubrication failure, and analyzes the cause of lubrication failure in combination with the lubrication failure position. The vehicle state related parameters comprise an angle parameter formed by the gearbox and the horizontal plane, a vehicle coordinate parameter, a real-time running speed parameter, an engine rotating speed parameter and an engine output power parameter.
Specifically, referring to fig. 2, the reasons for lubrication failure in combination with the vehicle state related parameters and lubrication failure position analysis include:
s10, acquiring an angle parameter formed by the gearbox relative to a horizontal plane through an angle sensor arranged at the gearbox;
s20, measuring coordinate parameters of a place where the vehicle is located through a GPS sensor arranged on the vehicle;
s30, acquiring real-time running speed parameters, engine rotating speed parameters and engine output power parameters of the vehicle through a vehicle-mounted control system;
s40, recording an angle parameter, a coordinate parameter, a real-time running speed parameter, an engine rotating speed parameter and an engine output power parameter corresponding to the first temperature parameter and the second temperature parameter;
s50, providing an angle parameter, a coordinate parameter, a real-time running speed parameter, an engine rotating speed parameter and an engine output power parameter when lubrication failure is detected; specifically, an angle parameter threshold value, an operation speed limit threshold value, a rotation speed limit threshold value and an engine output power limit threshold value which are allowed by a design index are preset, the provided angle parameter, coordinate parameter, real-time operation speed parameter, engine rotation speed parameter and engine output power parameter when lubrication fails are respectively compared with data which are allowed by the design index, and data which exceed the permission of the design index in the provided data are marked.
S60, restoring the state of the vehicle when the transmission is in lubrication failure according to the angle parameter, the coordinate parameter, the real-time running speed parameter, the engine rotating speed parameter and the engine output power parameter when the lubrication failure occurs, and judging whether the lubrication failure is influenced by the state of the vehicle or not by combining the lubrication failure position and the state of the vehicle. If the distribution of the lubricating oil in the gearbox and the trend of spraying the lubricating oil are determined by the angle parameters of the gearbox and the horizontal plane, once the inclination angle is overlarge, gears and bearings at the higher end of the gearbox are not in a lubricating oil infiltration state easily, and lubrication failure is generated.
In the specific implementation process, referring to fig. 3, analyzing lubrication failure reasons by combining the oil quantity parameter of the gearbox with the working state parameter of the spraying lubrication mechanism of the gearbox and the lubrication failure position includes:
s1, acquiring working state parameters of a spray lubrication mechanism and oil quantity parameters of a gearbox through a vehicle-mounted control system;
s2, recording working state parameters of a spray lubrication mechanism and oil quantity parameters of a gearbox corresponding to the first temperature parameter and the second temperature parameter;
s3, when lubrication failure is detected, providing working state parameters of a spray lubrication mechanism and oil quantity parameters of a gearbox, which are acquired within set time before and after the lubrication failure;
and S4, judging whether lubrication failure is caused by insufficient oil quantity or a defect factor of a lubrication system by combining the provided working state parameter of the spray lubrication mechanism, the oil quantity parameter of the gearbox and the lubrication failure position.
In the specific implementation process, when lubrication failure is detected, the spraying oil quantity is improved by controlling the spraying lubrication mechanism through the vehicle-mounted control system.
Example 2
Referring to fig. 4, an embodiment of the present invention provides an apparatus for evaluating lubrication status of various positions of a transmission, including: the first temperature acquisition modules are distributed at meshing gears and bearings in the gearbox and acquire first temperature parameters in the gearbox; in the specific implementation process, referring to fig. 5 and fig. 6 in combination, one possible first temperature acquisition module 1 includes a fixing ring 11 sleeved and fixed on a rotating shaft, a temperature sensor 12 is fixedly arranged on the fixing ring 11, the fixing ring 11 is attached to a gear or a bearing for fixing, and the temperature at the meshing position of the gear and the bearing is measured through the temperature sensor.
The second temperature acquisition module is arranged outside the gearbox and used for detecting a second temperature parameter of the environment where the gearbox is located.
The first temperature acquisition module and the second temperature acquisition module are electrically connected with the processing module.
The processing module is electrically connected with the first wireless communication module, the first wireless communication module is in wireless connection with the second wireless communication module, the second wireless communication module is electrically connected with the vehicle-mounted control system, the vehicle-mounted control system traverses corresponding first temperature parameters and second temperature parameters and makes difference, and whether lubrication failure occurs is judged according to whether the value obtained by subtracting the target second temperature parameter from the traversed target first temperature parameter exceeds a preset temperature threshold value.
In the implementation process, the device for evaluating the lubrication state of each position of the gearbox comprises: the system comprises a parameter acquisition module, a processing module and a vehicle-mounted control system, wherein the parameter acquisition module acquires a gearbox angle parameter, a coordinate parameter, a real-time running speed parameter, an engine rotating speed parameter, an engine output power parameter, a working state parameter of a spray lubrication mechanism and a gearbox oil quantity parameter in the running process of a vehicle, and the parameter acquisition module is electrically connected with the processing module and is electrically connected with the vehicle-mounted control system. In the specific implementation process, the parameter acquisition module comprises a sensor connected with a vehicle-mounted control system of the vehicle and used for acquiring real-time running speed parameters, engine rotating speed parameters and engine output power parameters, an angle sensor arranged on a gearbox and a GPS sensor. The angle sensor is electrically connected with the processing module and is powered by the power supply module; the GPS sensor is directly connected with the vehicle-mounted control system, and is powered by the vehicle-mounted power supply or the GPS sensor is connected with the processing module and is powered by the power supply module.
In the specific implementation process, the device for evaluating the lubrication state of each position of the gearbox comprises a power module, wherein the power module comprises a vehicle-mounted power supply unit and a battery power supply unit, and the power module is electrically connected with the processing module, the first temperature acquisition module, the second temperature acquisition module and the first wireless communication module. The second wireless acquisition module and the vehicle-mounted control system are powered by vehicle-mounted power supply.
Example 3
The embodiment of the invention provides a vehicle applying a device for evaluating the lubrication state of each position of a gearbox, which comprises the following components: and when the vehicle-mounted control system of the device for evaluating the lubrication state of each position of the gearbox judges that the gearbox fails in lubrication, the vehicle-mounted control system controls the spray lubrication mechanism to improve the oil injection quantity. Specifically, a corresponding relation between a temperature difference and an improved oil injection quantity is established, wherein the temperature difference refers to the maximum value of the difference between a first temperature parameter and a second temperature parameter which are judged to be the lubrication failure; and storing the corresponding relation between the temperature difference and the oil injection quantity improvement and a vehicle-mounted control system, wherein the vehicle-mounted control system controls the lubrication mechanism to improve the oil injection quantity according to the temperature difference.
In the working process of the gearbox, the meshing gear and the bearing are main bearing parts, and once lubrication is not in place, the parts are quickly heated up due to acting; according to the invention, the first temperature acquisition module arranged at the meshing gear and the bearing in the gearbox is used for acquiring the first temperature parameters of the meshing gear and the bearing in a targeted manner, the second temperature acquisition module is used for acquiring the second temperature parameters of the environment where the gearbox is positioned, whether lubrication failure occurs or not is judged by analyzing whether the difference between the first temperature parameters and the corresponding second temperature parameters exceeds a preset temperature threshold value at the same moment, and when lubrication failure occurs, the position of the lubrication failure is accurately positioned according to the position of the first temperature acquisition module which detects the lubrication failure. The lubrication failure measuring device has the advantages that more sensitive lubrication failure measurement is realized, further, the lubrication failure is dealt with more quickly, the damage to the gearbox caused by the lubrication failure to a deeper degree is avoided, the lubrication failure position is positioned, the subsequent maintenance and the searching of lubrication failure reasons are facilitated, and when the lubrication failure reasons are determined to be the design defects of the gearbox, the optimization of the design of the vehicle gearbox is guided.
According to the invention, an angle sensor arranged on the gearbox is used for measuring an angle parameter formed by the gearbox relative to a horizontal plane, a GPS sensor is used for measuring a coordinate parameter of a vehicle, and a vehicle-mounted control system is used for acquiring a real-time running speed parameter of the vehicle, an engine rotating speed parameter and an output power parameter; the lubrication failure of the gearbox is affected by the state of the vehicle, the state of the vehicle when the lubrication failure occurs in the gearbox is restored through the angle parameter, the coordinate parameter, the real-time running speed parameter, the engine rotating speed parameter and the engine output power parameter, and whether the lubrication failure is affected by the state of the vehicle is judged by combining the lubrication failure position and the state data of the vehicle. The lubrication failure reasons are conveniently analyzed and searched, influences of non-design reasons such as non-conventional vehicle states are eliminated in the vehicle design optimization stage, and the design is optimized; in the using stage of the vehicle, influences of non-design reasons such as non-conventional vehicle states are eliminated, and misdiagnosis of lubrication failure reasons is avoided.
Gearbox lubrication is affected by the amount of lubrication oil and the spray lubrication mechanism. According to the invention, the oil quantity parameter of the gearbox and the working state parameter of the spraying lubrication mechanism are obtained through the vehicle-mounted control system, and whether lubrication failure is insufficient oil quantity or the influence of the defect factors of the lubrication system is judged by combining the working state parameter of the spraying lubrication mechanism, the oil quantity parameter of the gearbox and the position of lubrication failure, which are collected in the set time before and after lubrication failure. The method is convenient for analyzing and searching the reasons of lubrication failure, in the vehicle design optimization stage, the influence of the oil quantity which is not the design reason is eliminated, whether lubrication failure is caused by the defect of the spraying lubrication mechanism in the design defect is judged, if so, the spraying lubrication mechanism is optimized, and in the vehicle use stage, whether lubrication failure is caused by the oil quantity of the gearbox and the working state of the spraying lubrication mechanism is judged.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A method of evaluating lubrication status of various locations of a transmission, comprising:
collecting first temperature parameters in the gearbox through a plurality of first temperature collecting modules distributed at the positions of a meshing gear and a bearing in the gearbox;
collecting a second temperature parameter of the environment where the gearbox is positioned by using a second temperature collecting module arranged outside the gearbox;
correspondingly collecting and storing the collected first temperature parameter and the collected second temperature parameter;
traversing the corresponding first temperature parameters and second temperature parameters, making a difference, analyzing whether the value of each first temperature parameter minus the second temperature parameter at the same moment exceeds a preset temperature threshold value, judging that lubrication failure occurs, and judging the position where the lubrication failure occurs according to a first temperature acquisition module which detects the lubrication failure when the lubrication failure occurs;
acquiring an angle parameter formed by the gearbox relative to a horizontal plane through an angle sensor arranged at the gearbox; measuring coordinate parameters of the vehicle location through a GPS sensor arranged on the vehicle; acquiring real-time running speed parameters, engine rotating speed parameters and engine output power parameters of a vehicle through a vehicle-mounted control system; recording an angle parameter, a coordinate parameter, a real-time running speed parameter, an engine rotating speed parameter and an engine output power parameter corresponding to the first temperature parameter and the second temperature parameter; acquiring working state parameters of a spray lubrication mechanism and oil quantity parameters of a gearbox through a vehicle-mounted control system; recording working state parameters of the spray lubrication mechanism and oil quantity parameters of the gearbox corresponding to the first temperature parameter and the second temperature parameter;
according to the angle parameter, the coordinate parameter, the real-time running speed parameter, the engine rotating speed parameter and the engine output power parameter when lubrication failure happens, the state of the vehicle when the transmission is restored, and whether the lubrication failure is influenced by the state of the vehicle is judged; and judging whether the lubrication failure is the influence of insufficient oil or a defect factor of a lubrication system according to the working state parameters of the spray lubrication mechanism and the oil quantity parameters of the gearbox, which are acquired in the set time before and after the lubrication failure.
2. The method for evaluating the lubrication state of each position of a gearbox according to claim 1, wherein the first temperature acquisition module is numbered, the installation position of the first temperature acquisition module is stored correspondingly to the number, and when lubrication failure is judged, the position where the lubrication failure occurs is judged according to the number of the first temperature acquisition module, which measures the target first temperature parameter for verifying the lubrication failure.
3. The method for evaluating the lubrication state of each position of a gearbox according to claim 1, wherein the spray lubrication mechanism is controlled by the vehicle control system to increase the spray oil amount when the occurrence of lubrication failure is detected.
4. An apparatus for evaluating lubrication status of various positions of a transmission, comprising:
the first temperature acquisition module is distributed at the meshing gear and the bearing in the gearbox and used for acquiring first temperature parameters in the gearbox;
the second temperature acquisition module is arranged outside the gearbox and is used for detecting a second temperature parameter of the environment where the gearbox is positioned;
the first temperature acquisition module and the second temperature acquisition module are electrically connected with the processing module;
the processing module is electrically connected with the first wireless communication module, the first wireless communication module is in wireless connection with the second wireless communication module, the second wireless communication module is electrically connected with the vehicle-mounted control system, the vehicle-mounted control system traverses the corresponding first temperature parameter and the corresponding second temperature parameter and makes a difference, and whether lubrication failure occurs is judged according to whether the value of subtracting the target second temperature parameter from the traversed target first temperature parameter exceeds a preset temperature threshold value;
the system comprises a parameter acquisition module, a processing module and a vehicle-mounted control system, wherein the parameter acquisition module acquires a gearbox angle parameter, a coordinate parameter, a real-time running speed parameter, an engine rotating speed parameter, an engine output power parameter, a spray lubrication mechanism working state parameter and a gearbox oil quantity parameter in the running process of a vehicle;
the processing module restores the state of the vehicle when the transmission is in lubrication failure according to the angle parameter, the coordinate parameter, the real-time running speed parameter, the engine rotating speed parameter and the engine output power parameter when the lubrication failure occurs, and judges whether the lubrication failure is influenced by the state of the vehicle; and judging whether the lubrication failure is the influence of insufficient oil or a defect factor of a lubrication system according to the working state parameters of the spray lubrication mechanism and the oil quantity parameters of the gearbox, which are acquired in the set time before and after the lubrication failure.
5. The device for evaluating lubrication status of various positions of a gearbox of claim 4, comprising a power module, wherein the power module comprises a vehicle-mounted power supply unit and a battery power supply unit, and wherein the power module is electrically connected to the processing module, the first temperature acquisition module, the second temperature acquisition module, and the first wireless communication module.
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