CN115235757A - Gearbox body performance monitoring management system based on data processing - Google Patents
Gearbox body performance monitoring management system based on data processing Download PDFInfo
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- G—PHYSICS
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- 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
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- 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
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- G01M13/021—Gearings
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- 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
- G01M13/028—Acoustic or vibration analysis
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Abstract
The invention relates to the technical field of automobile industry, in particular to a gearbox performance monitoring and managing system based on data processing, which comprises an information acquisition unit, a data processing unit and a data processing unit, wherein the information acquisition unit is used for acquiring running information of a gearbox monitored by the monitoring and managing system and an automobile provided with the gearbox; the cloud platform is used for storing the model number of the gearbox which is uploaded in the monitoring management system and has faults, the problems of the gearbox and the operation information of the gearbox; the central control unit is used for carrying out primary detection and secondary detection on the performance of the gearbox; and the user service unit is used for controlling the monitoring management system, receiving the information of the central control unit, and uploading the type of the gearbox with the fault, the problem of the gearbox and the operation information of the gearbox to the cloud platform.
Description
Technical Field
The invention relates to the technical field of automobile industry, in particular to a gearbox performance monitoring and management system based on data processing.
Background
With the development of society and the progress of science and technology, more and more people have automobiles, wherein a gear box is one of the key parts of the automobile and is a device for changing the rotating speed ratio and the moving direction. The torque, the rotating speed and the moving direction transmitted from the driving shaft to the driven shaft are changed according to different working conditions. Geared gearboxes generally consist of a housing and a number of gear pairs.
The problems of abnormal sound, slipping and jerking easily occur in the use process of the gearbox, and how to accurately detect the problems and the reasons for the problems is a problem which people pay attention to.
Chinese patent publication No. CN106353095A discloses an automatic transmission testing system, which includes a driving mechanism, a resistance mechanism, a measurement and control mechanism, and an automatic transmission to be tested, wherein a power output end of the driving mechanism is connected with the automatic transmission to be tested, a resistance output end of the resistance mechanism is coaxially installed with the automatic transmission to be tested, the measurement and control mechanism is respectively connected with the driving mechanism and the automatic transmission to be tested, the measurement and control mechanism includes a torque sensor, a temperature sensor and a vibration sensor, the torque sensor is electrically connected with the driving mechanism, and the temperature sensor and the vibration sensor are both installed on the surface of the automatic transmission to be tested; the system also comprises a controller, a wireless communication device and a background center. It can be seen that the following problems exist in the automatic gearbox testing system: the evaluation mode of the performance of the gearbox is single, and the evaluation precision is low due to incomplete consideration of the influence factors.
Disclosure of Invention
Therefore, the invention provides a gearbox performance monitoring and management system based on data processing, which is used for solving the problems that the evaluation mode of the gearbox performance is single and the evaluation precision is low due to incomplete consideration of influence factors in the prior art.
In order to achieve the above object, the present invention provides a transmission case performance monitoring and management system based on data processing, comprising:
the information acquisition unit is used for acquiring the running information of the gearbox or the automobile provided with the gearbox; the operation information comprises the engine speed, the current vehicle speed, the speed ratio of the gearbox, the hydraulic oil height, the decibel of the noise of the gearbox, the abrasion degree of the gear, the current temperature of the gearbox and the gear pause and contusion time;
the cloud platform is used for storing the model of the gearbox, the fault type of the gearbox and the running information of the gearbox when the gearbox is in fault, which are uploaded by the monitoring management system;
the central control unit is respectively connected with the information acquisition unit and the cloud platform and is used for controlling the information acquisition unit to perform primary detection and secondary detection on the performance of the gearbox and perform corresponding judgment according to a preset standard; the primary detection is used for judging whether the gearbox has a fault problem or not according to a comparison result of actual operation information of the gearbox and a preset standard; the secondary detection is used for grading the performance of the gearbox by calculating a gearbox performance score and according to the score;
and the user service unit is connected with the central control unit and the cloud platform and is used for controlling the monitoring management system, receiving the information of the central control unit and uploading the type of the failed gearbox, the problem of the gearbox and the operation information of the gearbox to the cloud platform.
Further, the central control unit is provided with a first preset difference value delta V1, when the monitoring management system detects the performance of the gearbox once, the central control unit calculates a difference value delta V between a preset vehicle speed Vs and a current vehicle speed V, and compares the delta V with the delta V1 to judge whether the gearbox has a slipping problem, wherein the delta V = Vs-V, 0 & lt delta V1, and the information acquisition unit comprises a vehicle speed detection device for detecting the current vehicle speed V; the central control unit is provided with a preset vehicle speed Vs, and set Vs = R multiplied by Q multiplied by D, wherein R = engine speed, Q = gearbox speed ratio, D = wheel perimeter,
if delta V is less than or equal to 0, the central control unit judges that the gearbox has no slipping problem;
if the value of delta V is more than 0 and less than or equal to delta V1, the central control unit judges that the gearbox has a slipping problem and transmits the judgment information to the user service unit to remind the user service unit to avoid wrong driving behaviors;
if the delta V1 is smaller than the delta V, the central control unit preliminarily judges that the gearbox has the slipping problem and further judges the cause of the slipping of the gearbox according to the height of hydraulic oil.
Further, when the central control unit determines that the gearbox has a slipping problem and further determines the cause of the slipping of the gearbox according to the hydraulic oil height H, the central control unit compares H with H1 and H2 respectively to determine the cause of the slipping of the gearbox; the central control unit is provided with a first preset height H1 and a second preset height H2, wherein H1 is more than 0 and less than H2,
if H is less than H1 or H is more than H1, the central control unit preliminarily judges the slipping reason of the gearbox because the height of the hydraulic oil does not meet the standard and transmits the judgment information to the user service unit so as to send out reminding information for adjusting the hydraulic oil to the normal height and detecting the gearbox again;
and if the H1 is not less than H and not more than H2, the central control unit judges that the height of the hydraulic oil meets the standard and the gearbox slips irrespective of the height of the hydraulic oil and transmits the judgment information to the user service unit to send out reminding information for checking the quality of the hydraulic oil.
Furthermore, the information acquisition unit comprises a sound detection device for monitoring the noise decibel of the gearbox; the central control unit calculates the average division shellfish in the period t of the gearbox when the monitoring management system detects the performance of the gearbox once
And average decibel
And the central control unit compares the delta d with delta d1 and delta d2 respectively to judge whether the abnormal noise problem exists in the gearbox, wherein the central control unit controls the sound detection device to detect the decibel of the noise of the gearbox every a seconds, when the central control unit controls the sound monitoring device to detect the decibel of the noise of the gearbox for n times, the central control unit records the decibel of the noise of the gearbox measured for the ith time as di, sets i =1,2,3, n and sets the i =1,2,3, n
＝（d1＋d2＋...＋di）/i，△d＝d﹣
(ii) a The central control unit is provided with a first preset decibel difference delta d1 and a second preset decibel delta d2, wherein delta d1 is more than 0 and delta d2 is more than 0,
if the delta d is less than or equal to the delta d1, the central control unit judges that the abnormal sound problem does not exist in the gearbox;
if the delta d1 is less than the delta d and is not more than the delta d2, the central control unit judges that the gearbox has abnormal sound and transmits the judgment information to the user service unit so as to send out reminding information for supplementing the gear lubricating oil of the gearbox;
if delta d2 is smaller than delta d, the central control unit judges that the abnormal sound problem exists in the gearbox and further judges the reason of the abnormal sound problem of the gearbox according to the abrasion degree of gears of the gearbox.
Further, the information acquisition unit comprises a wear detection device for detecting the wear degree S of a gear in the gearbox; when the central control unit judges that the gearbox has abnormal sound problems and further judges the reasons of the abnormal sound problems of the gearbox according to the abrasion degree of the gearbox gear, the central control unit respectively compares S with S1 and S2 to judge whether the abnormal sound of the gearbox is caused by the abrasion of the gearbox gear; the central control unit is provided with a first abrasion degree S1 and a second abrasion degree S2, wherein S1 is more than 0 and less than S2,
if S is less than or equal to S1, the central control unit judges that the abrasion of the gear is within a preset range and the abnormal sound of the gearbox is not caused by the abrasion of the gear and transmits the judgment information to the user service unit so as to send out reminding information for checking whether the abnormal sound of the gearbox is caused by misoperation or not;
if S1 is larger than S and is not larger than S2, the central control unit preliminarily judges that the gear is abraded to cause abnormal sound of the gearbox and transmits the judgment information to the user service unit to send out maintenance reminding information for the gear in the gearbox;
and if S2 is less than S, the central control unit judges that the gear wear causes abnormal sound of the gearbox and transmits the judgment information to the user service unit to send out reminding information for replacing the gear with serious wear degree.
Furthermore, the information acquisition unit comprises a temperature detection device for detecting the current temperature T of the gearbox; the central control unit compares the current temperature T of the gearbox measured by the temperature detection device with T1 when the performance monitoring system detects the performance of the gearbox so as to judge whether the current temperature of the gearbox affects the detection result; the central control unit is provided with a first preset temperature T1,
if T is less than or equal to T1, the central control unit judges that the current temperature of the gearbox does not influence the detection result;
if T1 is less than T, the central control unit judges that the current temperature of the gearbox can affect the detection result and transmits the judgment information to the user service unit so as to send out reminding information for cooling the gearbox.
Further, when the monitoring management system carries out secondary detection on the performance of the gearbox, the central control unit controls the rotation speed of the engine to be increased from 0 to Vmax at the acceleration of a r/s, records the gear pause time length M of the gearbox, and calculates a gearbox performance score K, and the setting is that K = 100-M (M x gamma); wherein gamma is a conversion coefficient preset by the central control unit, and is set to be more than 0 and less than gamma.
Further, when calculating the gearbox performance score K is completed, the central control unit compares K with K1, K2 and K3 respectively to judge a gearbox performance rating Pi, wherein i =1,2,3,4, and the performance of the gearbox is gradually increased from P1, P2, P3 to P4; the central control unit is provided with a first preset score K1, a second preset score K2 and a third preset score K3, wherein K1 is more than 0 and K2 is more than K3,
if K is less than or equal to K1, the central control unit judges that the performance grade of the gearbox is P1;
if K1 is larger than K and smaller than or equal to K2, the central control unit judges that the performance grade of the gearbox is P2;
if K2 is larger than K and smaller than or equal to K3, the central control unit judges that the performance grade of the gearbox is P3;
and if K3 is less than K, the central control unit judges that the performance grade of the gearbox is P4.
Furthermore, the cloud platform is provided with an updating period for updating the type of the gearbox which is stored in the cloud platform and has a fault, the problem of the gearbox and the operation information of the gearbox at the beginning of each updating period.
Furthermore, the user service unit is provided with an audio-visual display screen for displaying the judgment information of the central control unit and controlling the monitoring management system.
Compared with the prior art, the gearbox performance monitoring and managing system has the advantages that influence factors possibly causing gearbox failure are evaluated, primary detection and secondary detection are carried out, so that the monitoring and managing system can judge the gearbox performance more accurately, and the judging efficiency of the gearbox performance monitoring and managing system is improved.
Further, the central control unit is provided with a preset vehicle speed Vs, and set Vs = R × Q × D, where R = engine speed, Q = transmission speed ratio, and D = wheel circumference, and determines whether the transmission has a slip problem by comparing the preset vehicle speed with an actual current vehicle speed, so that the determination result is more accurate, and the determination efficiency of the invention on the performance of the transmission is improved while the determination speed is ensured.
Furthermore, the central control unit is provided with a first preset height H1 and a second preset height H2, the division of the preset range enables the judgment speed for judging whether the cause of the gearbox slipping is related to the hydraulic oil height to be increased, the judgment result is more accurate, and the judgment efficiency of the gearbox performance is further improved.
Furthermore, the delta d is respectively compared with the delta d1 and the delta d2 to judge whether the abnormal sound problem exists in the gearbox, so that the judgment on whether the abnormal sound problem exists in the gearbox is more accurate, the problem of misjudgment is avoided, the judgment speed is ensured, and the judgment efficiency on the performance of the gearbox is improved.
Further, when the monitoring management system carries out secondary detection on the performance of the gearbox, the central control unit controls the rotating speed of the engine to be increased to Vmax from 0 at the acceleration of a revolutions per second, records the gear pause/depression duration M of the gearbox, calculates the performance score K of the gearbox, and carries out secondary detection after primary detection is finished, so that the detection on the detection performance of the gearbox is not influenced by the fault problem, the problem of misjudgment is avoided, the judgment efficiency of the invention on the performance of the gearbox is improved while the judgment speed is ensured.
Furthermore, the central control unit is provided with a first abrasion degree S1 and a second abrasion degree S2, the division of the preset range enables the judgment speed for judging whether the cause of the abnormal sound of the gearbox is related to the gear abrasion to be increased, the judgment result is more accurate, and the judgment efficiency of the invention on the performance of the gearbox is further improved.
Furthermore, the cloud platform is provided with an updating period for updating the type of the gearbox which is stored in the cloud platform and has a fault, the problem of the gearbox and the operation information of the gearbox at the beginning of each updating period, so that the problem of the fault of the gearbox can be obtained through the cloud platform, the problem that the stored information loses timeliness due to overlong is avoided, and the efficiency of judging the performance of the gearbox is improved.
Drawings
FIG. 1 is a schematic diagram of a data processing based transmission housing performance monitoring and management system according to an embodiment of the present invention;
FIG. 2 is a flowchart of comparing Δ V with Δ V1 by the central control unit to determine whether there is a transmission slip problem according to the embodiment of the present invention;
FIG. 3 is a flowchart of the central control unit comparing H with H1 and H2, respectively, to determine the cause of transmission slip according to an embodiment of the present invention;
fig. 4 is a flowchart of comparing Δ d with Δ d1 and Δ d2 respectively by the central control unit to determine whether there is an abnormal noise problem in the transmission according to the embodiment of the present invention;
fig. 5 is a flowchart illustrating comparing S with S1 and S2 respectively to determine whether the abnormal noise of the transmission is caused by the wear of the gears in the transmission according to the embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 is a schematic structural diagram of a transmission performance monitoring and management system based on data processing according to an embodiment of the present invention, where the transmission performance monitoring and management system based on data processing includes:
the information acquisition unit is used for acquiring the running information of the gearbox or the automobile provided with the gearbox; the operation information comprises the engine speed, the current vehicle speed, the speed ratio of the gearbox, the hydraulic oil height, the decibel of the noise of the gearbox, the abrasion degree of the gear, the current temperature of the gearbox and the gear pause and contusion time;
the cloud platform is used for storing the model number of the gearbox, the fault type of the gearbox and the running information of the gearbox when the gearbox is in fault, which are uploaded by the monitoring management system;
the central control unit is respectively connected with the information acquisition unit and the cloud platform and is used for controlling the information acquisition unit to perform primary detection and secondary detection on the performance of the gearbox and perform corresponding judgment according to a preset standard; the primary detection is used for judging whether the gearbox has a fault problem or not according to a comparison result of actual operation information of the gearbox and a preset standard; the secondary detection is used for grading the performance of the gearbox by calculating a gearbox performance score and according to the score;
and the user service unit is connected with the central control unit and the cloud platform and is used for controlling the monitoring management system, receiving the information of the central control unit and uploading the type of the failed gearbox, the problem of the gearbox and the operation information of the gearbox to the cloud platform.
Please refer to fig. 2, which is a flowchart illustrating that the central control unit compares Δ V with Δ V1 to determine whether there is a slip problem in the transmission according to the embodiment of the present invention, the central control unit is provided with a first preset difference Δ V1, the central control unit calculates a difference Δ V between a preset vehicle speed Vs and a current vehicle speed V when the monitoring management system performs one-time detection on the transmission performance, and compares Δ V with Δ V1 to determine whether there is a slip problem in the transmission, where Δ V = Vs-V and Δ V1=10km/h, and the information acquisition unit includes a vehicle speed detection device for detecting the current vehicle speed V; the central control unit is provided with a preset vehicle speed Vs, and set Vs = R multiplied by Q multiplied by D, wherein R = engine speed, Q = gearbox speed ratio, D = wheel perimeter,
if delta V is less than or equal to 0, the central control unit judges that the gearbox has no slipping problem;
if the value of delta V is more than 0 and less than or equal to delta V1, the central control unit judges that the gearbox has a slipping problem and transmits the judgment information to the user service unit to remind the user service unit to avoid wrong driving behaviors;
if the delta V1 is smaller than the delta V, the central control unit preliminarily judges that the gearbox has the slipping problem and further judges the cause of the slipping of the gearbox according to the height of hydraulic oil.
Please refer to fig. 3, which is a flowchart illustrating that the central control unit compares H with H1 and H2 respectively to determine the cause of the transmission slip according to an embodiment of the present invention, and when determining that there is a slip problem in the transmission and further determines the cause of the transmission slip according to the hydraulic oil height H, the central control unit compares H with H1 and H2 respectively to determine the cause of the transmission slip; the central control unit is provided with a first preset height H1 and a second preset height H2, wherein H1=40cm, H2=50cm,
if H is less than H1 or H is more than H1, the central control unit preliminarily judges that the gearbox slips and the height of the hydraulic oil does not meet the standard, and transmits judgment information to the user service unit to remind of adjusting the hydraulic oil to the normal height and detect the gearbox again;
and if H1 is not less than H and not more than H2, the central control unit judges that the height of the hydraulic oil meets the standard and the gearbox slips irrespective of the height of the hydraulic oil and transmits the judgment information to the user service unit to remind a user service unit to check the quality of the hydraulic oil.
Referring to fig. 4, it is a flowchart of comparing Δ d with Δ d1 and Δ d2 respectively by the central control unit according to the embodiment of the present invention to determine whether there is abnormal noise in the transmission, where the central control unit calculates an average decibel within a transmission period t when the monitoring management system performs a primary detection on the performance of the transmission
And average decibel
And the difference value delta d of decibel d when the gearbox shifts, and the central control unit compares the delta d with delta d1 and delta d2 respectively to judge whether the gearbox has abnormal sound problems, wherein the central control unit controls the sound detection device to detect the decibel of the noise of the gearbox every a seconds, when the central control unit controls the sound monitoring device to detect the decibel of the noise of the gearbox for n times, the central control unit records the decibel of the noise of the gearbox as di for the ith time, i =1,2,3
＝（d1＋d2＋...＋di）/i，△d＝d﹣
(ii) a The information acquisition unit comprisesThe sound detection device is used for monitoring the noise decibel of the gearbox; the central control unit is provided with a first preset decibel difference delta d1 and a second preset decibel delta d2, wherein delta d1=20db, delta d2=30db,
if the delta d is less than or equal to the delta d1, the central control unit judges that the gearbox has no abnormal sound problem;
if the delta d1 is less than the delta d and is not more than the delta d2, the central control unit judges that the gearbox has the abnormal sound problem and transmits the judgment information to the user service unit to remind the user service unit to supplement the gearbox gear lubricating oil;
if delta d2 is smaller than delta d, the central control unit judges that the abnormal sound problem exists in the gearbox and further judges the reason of the abnormal sound problem of the gearbox according to the abrasion degree of gears of the gearbox.
Please refer to fig. 5, which is a flowchart illustrating that S is respectively compared with S1 and S2 to determine whether abnormal noise exists in the transmission due to abrasion of an internal gear of the transmission according to the embodiment of the present invention, when determining that an abnormal noise problem exists in the transmission and further determining a cause of the abnormal noise problem in the transmission according to a degree of abrasion of the gear of the transmission, the central control unit respectively compares S with S1 and S2 to determine whether the abnormal noise exists in the transmission due to abrasion of the internal gear of the transmission; the information acquisition unit comprises a wear detection device used for detecting the wear degree S of a gear in the gearbox; the central control unit is provided with a first abrasion degree S1 and a second abrasion degree S2, wherein S1 is more than 0 and less than S2,
if S is less than or equal to S1, the central control unit judges that the abrasion of the gear is within a preset range and the abnormal sound of the gearbox is not caused by the abrasion of the gear and transmits judgment information to the user service unit to remind a user to check whether the abnormal sound of the gearbox is caused by improper operation;
if S1 is larger than S and smaller than or equal to S2, the central control unit preliminarily judges that the gear is abraded to cause abnormal sound of the gearbox and transmits judgment information to the user service unit to remind of maintaining the gear in the gearbox;
and if S2 is less than S, the central control unit judges that the gear wear causes abnormal sound of the gearbox and transmits the judgment information to the user service unit to remind a user of replacing the gear with serious wear degree.
With reference to fig. 1 to 5, when the performance monitoring system detects the performance of the transmission, the central control unit compares T with T1 to determine whether the current temperature of the transmission affects the detection result; the information acquisition unit comprises a temperature detection device for detecting the current temperature T of the gearbox; the central control unit is provided with a first preset temperature T1, wherein T1=100 °,
if T is less than or equal to T1, the central control unit judges that the current temperature of the gearbox does not influence the detection result;
if T1 is less than T, the central control unit judges that the current temperature of the gearbox can affect the detection result and transmits the judgment information to the user service unit to remind the user service unit to cool the gearbox.
Specifically, when the monitoring management system carries out secondary detection on the gearbox performance, the central control unit controls the engine speed to be increased from 0 to Vmax at an acceleration of 800 revolutions per second, records the gearbox gear pause and depression duration M and calculates a gearbox performance score K, and the setting is that K =100 (-M x gamma); the central control unit is provided with a conversion coefficient gamma, wherein gamma =4,
specifically, when calculating the gearbox performance score K is completed, the central control unit compares K with K1, K2 and K3 respectively to judge a gearbox performance grade Pi, wherein i =1,2,3,4, and the performance of the gearbox is gradually increased from P1, P2, P3 to P4; the central control unit is provided with a first preset score K1, a second preset score K2 and a third preset score K3, wherein K1=80, K2=85, K3=95,
if K is less than or equal to K1, the central control unit judges that the performance grade of the gearbox is P1;
if K1 is larger than K and smaller than or equal to K2, the central control unit judges that the performance grade of the gearbox is P2;
if K2 is larger than K and is smaller than or equal to K3, the central control unit judges that the performance grade of the gearbox is P3;
and if K3 is less than K, the central control unit judges that the performance grade of the gearbox is P4.
Specifically, the cloud platform is provided with an update cycle for updating the model of the gearbox which is stored in the cloud platform and has a fault, the problem of the gearbox and the operation information of the gearbox at the beginning of each update cycle.
Specifically, the user service unit is provided with an audio-visual display screen for displaying the judgment information of the central control unit and controlling the monitoring management system.
Specifically, the vehicle speed detection device is provided with a vehicle speed detection period, and the vehicle speed detection device detects and records the vehicle speed every 3s in the vehicle speed detection period.
Specifically, the precondition of the primary detection comprises vehicle road operation and is specially used for detecting the performance of the gearbox, and the precondition of the secondary detection comprises the condition of being specially used for detecting the performance of the gearbox.
Example 1
In this embodiment, when the monitoring and management system performs primary detection on the performance of the transmission, the information acquisition unit detects that the current vehicle speed V =80km/h, R =1500R/min, Q =2.0, and D =0.5m, and then Vs =1500 × 2.0 × 0.5=1500m/min =90km/h, at this time, Δ V = 90-80 =10km/h, and Δ V =Δv1, the central control unit determines that the transmission has a slip problem and transmits determination information to the user service unit to remind the user service unit to avoid a wrong driving behavior; when the monitoring management system detects the performance of the gearbox once, the information acquisition unit measures the average division shellfish in the period t of the gearbox
And =80db, decibel d =100db when shifting, in this case, Δ d =100-80=20db, and Δ d =Δd1, and the central control unit determines that the gearbox has no abnormal sound problem. In this embodiment, the information acquisition unit detects that the current temperature T =90 ° of the transmission, and at this time, T is less than T1, and the central control unit determines that the current temperature of the transmission does not affect the detection result.
In this embodiment, when the monitoring and management system performs secondary detection on the performance of the transmission, the information acquisition unit measures a transmission gear pause duration M =2s, at this time, K =100- (2 × 4) =92, K2 < K3, and the central control unit determines that the performance level of the transmission is P3.
Example 2
In this embodiment, whenWhen the monitoring and management system detects the performance of the gearbox once, the information acquisition unit detects that the current vehicle speed is V =80km/h, R =1500R/min, Q =2.2 and D =0.5m, and Vs =1500 × 2.2 × 0.5=1650m/min =99km/h, at the moment, Δ V =99 =80 =19km/h and Δ V1 <ΔV, the central control unit judges that the gearbox has a slipping problem and further judges the cause of the gearbox slipping according to the height of hydraulic oil; the information acquisition unit measures that the height H =45cm of hydraulic oil, H1 is greater than H and is less than H2, the central control unit judges that the height of the hydraulic oil meets the standard, the gearbox slips and is irrelevant to the height of the hydraulic oil, and the information is transmitted to the user service unit to remind a user service unit to check the quality of the hydraulic oil. At the moment, when the monitoring management system detects the performance of the gearbox for one time, the information acquisition unit measures the average decibel of the gearbox within the period t
And =80db, decibel d =100db when shifting, in this case, Δ d =100-80=20db, and Δ d =Δd1, and the central control unit determines that the gearbox has no abnormal sound problem. In this embodiment, the information acquisition unit detects that the current temperature T =90 ° of the transmission, and at this time, T is less than T1, and the central control unit determines that the current temperature of the transmission does not affect the detection result.
In this embodiment, when the monitoring and management system performs secondary detection on the performance of the transmission, the information acquisition unit measures a transmission gear pause duration M =1s, at this time, K =100- (1 × 4) =96, K3 is less than K, and the central control unit determines that the performance level of the transmission is P4.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A transmission housing performance monitoring and management system based on data processing, comprising:
the information acquisition unit is used for acquiring the running information of the gearbox or the automobile provided with the gearbox; the operation information comprises the engine speed, the current vehicle speed, the speed ratio of the gearbox, the hydraulic oil height, the decibel of the noise of the gearbox, the abrasion degree of the gear, the current temperature of the gearbox and the gear pause and contusion time;
the cloud platform is used for storing the model number of the gearbox, the fault type of the gearbox and the running information of the gearbox when the gearbox is in fault, which are uploaded by the monitoring management system;
the central control unit is respectively connected with the information acquisition unit and the cloud platform and is used for controlling the information acquisition unit to perform primary detection and secondary detection on the performance of the gearbox and perform corresponding judgment according to a preset standard; the primary detection is used for judging whether the gearbox has a fault problem or not according to a comparison result of actual operation information of the gearbox and a preset standard; the secondary detection is used for grading the performance of the gearbox by calculating a gearbox performance score and according to the score;
and the user service unit is connected with the central control unit and the cloud platform and is used for controlling the monitoring management system, receiving the information of the central control unit and uploading the type of the failed gearbox, the problem of the gearbox and the operation information of the gearbox to the cloud platform.
2. The data processing-based transmission case performance monitoring and management system according to claim 1, wherein the central control unit is provided with a first preset difference Δ V1, the central control unit calculates a difference Δ V between a preset vehicle speed Vs and a current vehicle speed V when the monitoring and management system detects the performance of the transmission once, and compares Δ V with Δ V1 to determine whether the transmission has a slip problem, wherein Δ V = Vs-V, 0 < Δv1, and the information acquisition unit comprises a vehicle speed detection device for detecting the current vehicle speed V; the central control unit is provided with a preset vehicle speed Vs, and set Vs = R multiplied by Q multiplied by D, wherein R = engine speed, Q = gearbox speed ratio, D = wheel perimeter,
if delta V is less than or equal to 0, the central control unit judges that the gearbox has no slipping problem;
if the value of delta V is more than 0 and less than or equal to delta V1, the central control unit judges that the gearbox has a slipping problem and transmits the judgment information to the user service unit to remind the user service unit to avoid wrong driving behaviors;
if the delta V1 is smaller than the delta V, the central control unit preliminarily judges that the gearbox has the slipping problem and further judges the cause of the slipping of the gearbox according to the height of hydraulic oil.
3. The data processing-based transmission case performance monitoring and management system according to claim 2, wherein the central control unit compares H with H1 and H2 respectively to determine the cause of transmission slip when determining that there is a transmission slip problem and further determines the cause of transmission slip according to the hydraulic oil level H; the central control unit is provided with a first preset height H1 and a second preset height H2, wherein H1 is more than 0 and less than H2,
if H is less than H1 or H is more than H1, the central control unit preliminarily judges the slipping reason of the gearbox because the height of the hydraulic oil does not meet the standard and transmits the judgment information to the user service unit so as to send out reminding information for adjusting the hydraulic oil to the normal height and detecting the gearbox again;
and if H1 is not less than H and not more than H2, the central control unit judges that the height of the hydraulic oil meets the standard and the gearbox slips irrespective of the height of the hydraulic oil and transmits the judgment information to the user service unit to send out reminding information for checking the quality of the hydraulic oil.
4. Data processing based transmission housing performance monitoring and management system according to claim 3, characterized in thatThe information acquisition unit comprises a sound detection device for monitoring the noise decibel of the gearbox; the central control unit calculates the average division shellfish in the period t of the gearbox when the monitoring management system detects the performance of the gearbox once
And average decibel
And the central control unit compares the delta d with delta d1 and delta d2 respectively to judge whether the abnormal noise problem exists in the gearbox, wherein the central control unit controls the sound detection device to detect the decibel of the noise of the gearbox every a seconds, when the central control unit controls the sound monitoring device to detect the decibel of the noise of the gearbox for n times, the central control unit records the decibel of the noise of the gearbox measured for the ith time as di, sets i =1,2,3, n and sets the i =1,2,3, n
＝（d1＋d2＋...＋di）/i，△d＝d﹣
(ii) a The central control unit is provided with a first preset decibel difference delta d1 and a second preset decibel delta d2, wherein delta d1 is more than 0 and delta d2 is more than 0,
if the delta d is less than or equal to the delta d1, the central control unit judges that the gearbox has no abnormal sound problem;
if delta d1 is less than or equal to delta d2, the central control unit judges that the gearbox has abnormal sound problems and transmits the judgment information to the user service unit so as to send out reminding information for replenishing the gear lubricating oil of the gearbox;
if delta d2 is smaller than delta d, the central control unit judges that the abnormal sound problem exists in the gearbox and further judges the reason of the abnormal sound problem of the gearbox according to the abrasion degree of gears of the gearbox.
5. The data processing-based transmission case performance monitoring and management system according to claim 4, wherein the information acquisition unit comprises a wear detection device for detecting the degree of wear S of a gear in the transmission; when the central control unit judges that the gearbox has abnormal sound problems and further judges the reasons of the abnormal sound problems of the gearbox according to the abrasion degree of the gearbox gear, the central control unit respectively compares S with S1 and S2 to judge whether the abnormal sound of the gearbox is caused by the abrasion of the gearbox gear; the central control unit is provided with a first abrasion degree S1 and a second abrasion degree S2, wherein S1 is more than 0 and less than S2,
if S is less than or equal to S1, the central control unit judges that the abrasion of the gear is within a preset range and the abnormal sound of the gearbox is not caused by the abrasion of the gear and transmits the judgment information to the user service unit to send out reminding information for checking whether the abnormal sound of the gearbox is caused by improper operation;
if S1 is larger than S and smaller than or equal to S2, the central control unit preliminarily judges that the gear is abraded to cause abnormal sound of the gearbox and transmits the judgment information to the user service unit to send out reminding information for maintaining the gear in the gearbox;
and if S2 is less than S, the central control unit judges that the gear wear causes abnormal sound of the gearbox and transmits the judgment information to the user service unit to send out reminding information for replacing the gear with serious wear degree.
6. The data processing-based transmission case performance monitoring and management system according to claim 5, wherein the information acquisition unit comprises a temperature detection device for detecting the current temperature T of the transmission case; the central control unit compares the current temperature T of the gearbox measured by the temperature detection device with T1 when the performance monitoring system detects the performance of the gearbox so as to judge whether the current temperature of the gearbox affects the detection result; the central control unit is provided with a first preset temperature T1,
if T is less than or equal to T1, the central control unit judges that the current temperature of the gearbox does not influence the detection result;
if T1 is less than T, the central control unit judges that the current temperature of the gearbox can affect the detection result and transmits the judgment information to the user service unit to send out reminding information for cooling the gearbox.
7. The data processing-based transmission case performance monitoring and management system according to claim 6, wherein the central control unit controls the engine speed to increase from 0 to Vmax at an acceleration of a revolutions per second when the monitoring and management system detects the transmission performance for a second time, records a transmission gear break-over time period M, and calculates a transmission performance score K, set to K =100 (-M x γ); wherein gamma is a conversion coefficient preset by the central control unit, and is set to be more than 0 and less than gamma.
8. The data processing based transmission performance monitoring and management system according to claim 7, wherein the central control unit compares K with K1, K2 and K3 respectively to determine a transmission performance rating Pi when calculating the transmission performance score K is completed, wherein i =1,2,3,4, and the performance of the transmission is progressively increased from P1, P2, P3 to P4; the central control unit is provided with a first preset score K1, a second preset score K2 and a third preset score K3, wherein K1 is more than 0 and K2 is more than K3,
if K is less than or equal to K1, the central control unit judges that the performance grade of the gearbox is P1;
if K1 is larger than K and smaller than or equal to K2, the central control unit judges that the performance grade of the gearbox is P2;
if K2 is larger than K and smaller than or equal to K3, the central control unit judges that the performance grade of the gearbox is P3;
and if K3 is less than K, the central control unit judges that the performance grade of the gearbox is P4.
9. The data processing-based transmission housing performance monitoring and management system according to claim 1, wherein the cloud platform is provided with update cycles for updating the type of failed transmission, transmission problems and transmission operational information stored in the cloud platform at the beginning of each update cycle.
10. The data processing-based transmission case performance monitoring and management system according to claim 1, wherein the customer service unit is provided with an audio-visual display screen for displaying the determination information of the central control unit and controlling the monitoring and management system.
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| CN115420501A (en) * | 2022-11-04 | 2022-12-02 | 山东驰勤机械有限公司 | Gearbox running management and control system based on artificial intelligence |
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