CN112444412A - Method for testing by applying automobile clutch performance testing device - Google Patents
Method for testing by applying automobile clutch performance testing device Download PDFInfo
- Publication number
- CN112444412A CN112444412A CN202011531063.1A CN202011531063A CN112444412A CN 112444412 A CN112444412 A CN 112444412A CN 202011531063 A CN202011531063 A CN 202011531063A CN 112444412 A CN112444412 A CN 112444412A
- Authority
- CN
- China
- Prior art keywords
- clutch
- pedal
- force
- test
- clutch pedal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 261
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000006073 displacement reaction Methods 0.000 claims abstract description 70
- 230000009471 action Effects 0.000 claims abstract description 19
- 238000000926 separation method Methods 0.000 claims description 55
- 238000011056 performance test Methods 0.000 claims description 34
- 238000013016 damping Methods 0.000 claims description 29
- 238000009434 installation Methods 0.000 claims description 16
- 238000010998 test method Methods 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 230000006378 damage Effects 0.000 claims description 6
- 230000033001 locomotion Effects 0.000 claims description 6
- 230000009975 flexible effect Effects 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000007488 abnormal function Effects 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000011161 development Methods 0.000 description 20
- 238000012795 verification Methods 0.000 description 13
- 238000013461 design Methods 0.000 description 10
- 238000012356 Product development Methods 0.000 description 7
- 101000623895 Bos taurus Mucin-15 Proteins 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000392 somatic effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- 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
- G01M13/022—Power-transmitting couplings or clutches
-
- 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
- G01M13/027—Test-benches with force-applying means, e.g. loading of drive shafts along several directions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
Abstract
The invention provides a method for testing by applying an automobile clutch performance testing device, which comprises a clutch pedal characteristic testing method, wherein the clutch pedal characteristic testing method comprises the following testing steps: respectively installing a displacement sensor I (14), a force sensor I (15), a force sensor II (16) and a displacement sensor II (17) in place; the automobile clutch performance testing device is started, the telescopic cylinder (45) extends out and then contracts within a set time, the clutch pedal (5) is controlled to complete a complete clutch pedal action, and the displacement sensor I (14), the force sensor I (15), the force sensor II (16) and the displacement sensor II (17) respectively feed back data to the control part (18).
Description
Technical Field
The invention belongs to the technical field of automobile part tests, and particularly relates to a method for testing by applying an automobile clutch performance testing device.
Background
The clutch characteristic performance of the whole vehicle mainly refers to the operation perception of a driver when the driver operates a clutch pedal, in all MT type vehicles, the clutch operation cannot be avoided, and the driver needs to step on the pedal to separate and combine a driven disc of a clutch and an engine flywheel, so that the power can be cut off and input, and the normal starting and smooth gear shifting of the vehicle are ensured. The clutch pedal force which is felt by the left foot of a driver is mainly the maximum pedal force of a clutch system, the source of the clutch pedal force is the working point separation force of a clutch driven disc, the clutch pedal force is converted to a clutch pedal through a shifting fork lever, a main cylinder lever, a clutch pedal lever and system efficiency, the clutch pedal force of a car is usually required to be 85-110N, when the pedal force is in the interval, the feeling of the feet of people is more comfortable, and when the pedal force exceeds more than 140, the driver can be fatigued very in the operation process. The pedal stroke is generally between 120 and 150mm, and the size of the pedal stroke is also influenced by ergonomics, so that the driver feels the length and the length of the pedal.
At present, in the field of automobile manufacturing, because the performance test of a clutch system cannot be intervened in the early design and development stage, the whole automobile test is carried out only after a sample automobile comes out, and the project period and the cost of design change are increased; for the matching of the clutch system, the disassembly and assembly of a real vehicle bring great inconvenience, the test period is long, the seasonality is large, and the clutch performance test caused by temperature difference can not be carried out at any time. At present, a common clutch performance test device in the market adopts an air cylinder and a hydraulic cylinder as driving sources, is not accurate enough, has poor control precision, cannot carry out temperature resistance verification, and has low equipment expansibility. With the shortening of the development cycle of the current automobile project, better products are released to the market, and the comprehensive research and development strength of the whole automobile enterprise is considered, so that the development cycle of the automobile type is shorter and shorter, the limitation that a whole automobile data acquisition system can only test the whole automobile is added, and the continuous updating of the automobile type can cause the frequent matching change of a clutch system, so that a high-efficiency, reliable and simple clutch performance testing device for testing the pedal force, the stroke, the reliability and the temperature resistance and a corresponding testing method thereof are urgently needed, and the development of the clutch performance is effectively guided.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the defects of the prior art, the automobile clutch performance testing device is simple in structure, can accurately simulate the state of the clutch system of the whole automobile, tests the clutch performance of the automobile all the season, is simple, convenient and efficient, shortens the development period, is wide in application range and wide in clutch performance coverage, provides reliable data support for product development and innovative design, and finally effectively improves the product quality, and provides the method for testing by using the automobile clutch performance testing device.
To solve the technical problems, the invention adopts the technical scheme that:
a clutch performance test device for an automobile comprises a test device cabinet and a separation execution rack, wherein the test device cabinet is provided with a mounting support and a front coaming support, a clutch pedal is connected with the front coaming support, one end of a telescopic cylinder is movably connected with the mounting support, the other end of the telescopic cylinder is connected with a pedal tread of the clutch pedal, the clutch pedal is connected with a clutch main cylinder arranged on the front coaming support, the separation execution rack comprises a rack base, the separation execution support and a flywheel support are arranged on the rack base, a hydraulic separation bearing is arranged on the separation execution support and is connected with a clutch, the flywheel is arranged on the flywheel support, the clutch is connected with the flywheel, the clutch main cylinder is connected with the hydraulic separation bearing through a clutch pipe, a displacement sensor I and a force sensor I are arranged between the telescopic cylinder and the pedal tread, a force sensor II is arranged between the hydraulic release bearing and the clutch, and a displacement sensor II is arranged on the hydraulic release bearing; and the displacement sensor I, the force sensor II and the displacement sensor II are respectively connected with the control part.
The device can test a clutch system and single parts, can form a relation curve among pedal force, pedal stroke, separating force and separating stroke, can test the damping characteristic of a single pedal part, and can test the sealing performance of the system.
The rack mesa of car separation and reunion performance test device's testing apparatus rack on set up sliding guide I, sliding guide I sets up to the structure that can extend to separation and reunion footboard direction, the installing support includes bracket component I and bracket component II, I lower extreme of bracket component and II lower extremes of bracket component are connected with slip strip I respectively, slip strip I passes through draw-in groove activity card dress on sliding guide I, screw up the fastening bolt in the locating hole on the slip strip, I upper end of bracket component and II upper ends of bracket component are connected through the regulating plate, the regulating plate is close to II one end of bracket component and sets up separation and reunion footboard support I, the separation and reunion footboard includes footboard somatic part, footboard movable part upper end and footboard somatic part swing joint, footboard movable part lower extreme sets up the footboard tread, footboard somatic part.
Automobile clutch performance test device's preceding bounding wall support on set up sliding guide II, separation and reunion footboard support II passes through draw-in groove activity card dress on sliding guide II, separation and reunion footboard support II and sliding guide II all set up to the structure of vertical arrangement, separation and reunion footboard support II sets up 4 sides of preceding bounding wall support near installing support one side, separation and reunion footboard support II on the locating hole screw up the solid bolt of dress.
The separation is carried out and is set up sliding guide II on the rack base of rack, separation carry out slide bar III of support lower extreme and pass through draw-in groove activity card dress on sliding guide II, screw up fastening bolt in the locating hole on slide bar III, the slide bar II of flywheel support lower extreme pass through draw-in groove activity card dress on sliding guide II, screw up fastening bolt in the locating hole on slide bar II.
Bracket component I and bracket component II respectively arrange perpendicularly on slider I, the one end that telescopic cylinder and installing support are connected be close to upper portion position with bracket component I and pass through ears and support swing joint.
The adjusting plate is close to the position of the clutch pedal and is provided with an adjusting lifting lug, the adjusting lifting lug is connected with an adjusting hook, the telescopic cylinder is close to one end connected with the pedal tread and is provided with a lifting ring, and the adjusting structure is hooked on the lifting ring.
The test device rack bottom of car separation and reunion performance test device set up a plurality of removal wheel I, 1 bottoms of test device rack still set up a plurality of support adjusting screw I, support the screw hole of I upper end of adjusting screw and 1 bottoms of test device rack and twist to adorn and be connected, support I lower extreme of adjusting screw and set up and support plate I, support between adjusting screw I and the support plate I to set up to be the font structure of falling T.
The separation execution rack bottom of the automobile clutch performance test device is provided with a plurality of moving wheels II, the separation execution rack bottom is also provided with a plurality of supporting adjusting screws II, the upper ends of the supporting adjusting screws II are connected with the threaded holes in the bottom of the separation execution rack in a screwing mode, the lower ends of the supporting adjusting screws II are provided with supporting plate pieces II, and the supporting adjusting screws II and the supporting plate pieces II are arranged to be of inverted T-shaped structures.
The automobile clutch performance test device further comprises a temperature control box, the temperature control box comprises a box body and a plurality of temperature adjusting parts, the temperature adjusting parts are arranged at different positions of the box body, and a test device cabinet and a separation execution rack of the automobile clutch performance test device are arranged into structures capable of being placed in the box body.
The automobile clutch performance testing device is characterized in that a displacement sensor I is a stay-supported displacement sensor, a force sensor I is a pressure type force sensor, a force sensor II is a pressure type force sensor, and a displacement sensor II is a grating type displacement sensor.
The invention also relates to a method for testing the clutch performance of the applied automobile, which has the advantages of simple steps, low input cost, capability of accurately simulating the state of the clutch system of the whole automobile and testing the clutch performance of the automobile all the season, simple, convenient and efficient test of the clutch performance of the automobile, shortened development period, wide application range and wide range of clutch performance coverage, provides reliable data support for product development and innovative design and finally effectively improves the product quality.
The device for testing the clutch performance of the application automobile comprises a test device cabinet and a separation execution rack, the method for testing the clutch performance of the application automobile comprises a clutch pedal characteristic test method, and the test steps of the clutch pedal characteristic test method are as follows: 1, arranging a clutch system on an automobile clutch performance test device according to the state of the whole automobile, and checking the installation state of the clutch system; 2, respectively installing a displacement sensor I, a force sensor II and a displacement sensor II in place, and respectively connecting the displacement sensor I, the force sensor II and the displacement sensor II with a control part; 3, starting the automobile clutch performance test device through the control part, wherein the control part controls the telescopic cylinder to act, the telescopic cylinder firstly extends and then contracts within a set time, the clutch pedal is controlled to complete a complete clutch pedal action, and the direction of a constant speed and a force is consistent with the axis direction of the force sensor I when the telescopic cylinder acts; and 4, feeding back measurement data in the action process of the clutch pedal to the control part by the displacement sensor I, the force sensor II and the displacement sensor II respectively, acquiring and processing the measurement data by the control part to form a clutch pedal characteristic test curve reflecting the relation between the force and the stroke of the clutch pedal, and displaying the maximum pedal force, the pedal stroke and the free stroke, the initial pedal force, the pedal return force, Drop-off (force Drop), the system damping force and the pedal holding force on the clutch pedal characteristic test curve to finish the clutch pedal characteristic test.
When the installation state of the clutch system is checked, the following states of the clutch system are confirmed before the installation of the clutch system: 1 the movable part of the clutch pedal has flexible action in the whole working stroke and no abnormal noise; the movable part of the pedal of the clutch pedal cannot be pre-pushed after the pedal is installed; 2, the clutch master cylinder, the hydraulic release bearing and the working cylinder of the clutch are free from corrosion, damage, abnormal function and the like; 3 the rigidity of the clutch main cylinder and the clutch main cylinder bracket is required to minimize the pump stroke loss and ensure the use reliability under the working force within a set range.
When the installation state of the clutch system is checked, the clutch system is installed according to the arrangement coordinates of the whole vehicle state, a specified route and a specified position arranged on the whole vehicle are simulated, the check is carried out according to the whole vehicle state and the exhaust requirement, and after the displacement sensor I, the force sensor II and the displacement sensor II are respectively installed in place, the swing angle of the pedal moving part of the clutch pedal during the action period is minimum.
When the installation state of the clutch system is checked, the clutch system is installed according to the arrangement coordinates of the whole vehicle state, brake fluid is filled in the liquid storage tank, the clutch pedal is ensured to be located at the stroke starting position, the exhaust valve on the hydraulic release bearing is opened, the pedal tread of the clutch pedal is pressed until the stroke is finished, the exhaust valve is closed, the pedal tread is placed at the stroke starting position again, the operation is repeated for 2-5 times until no air is discharged from the exhaust valve, and meanwhile, the brake fluid flowing out of the liquid storage tank is free of bubbles.
The method for testing by applying the automobile clutch performance testing device also comprises a temperature resistance testing method, and the temperature resistance testing method comprises the following testing steps: 1, performing clutch pedal characteristic test at normal temperature to obtain a clutch pedal characteristic test curve; 2, placing the automobile clutch performance test device and the clutch system into a temperature control box 42, wherein the application temperature range of the temperature control box 42 is-50 ℃ to +120 ℃; the temperature tolerance is +/-1 ℃; 3, respectively placing the clutch performance testing device and the clutch system for 6-8 hours at room temperature, room temperature of-20 ℃ and-20 ℃ to-40 ℃ in sequence; 4, after the placement is finished, the control component 18 controls the telescopic cylinder 45 to push the clutch pedal 5 to act for 2-3 times within 2min, the displacement of a master cylinder piston is not limited, the interval time of pushing each time is 30s, the return characteristic of the clutch system is measured, and the flexibility of the piston action and the leakage condition are observed; 5 requirements after the test: at normal temperature, the return time of the clutch pedal is less than or equal to 0.5s, and no hysteresis phenomenon occurs; when the room temperature reaches-20 ℃, the clutch pedal return time is less than or equal to 0.9 s; the temperature is-20 ℃ to-40 ℃, the clutch pedal can return, and the system has no leakage. In the present invention, room temperature and room temperature mean at ambient temperature.
The method for testing by applying the automobile clutch performance testing device also comprises a clutch pedal damping characteristic testing method, and the clutch pedal damping characteristic testing method comprises the following experimental steps: 1, connecting a displacement sensor I and a force sensor I to a clutch pedal; 2, adjusting the position of the force sensor I to minimize the swing angle of the pedal movable part of the clutch pedal during action; 3, separating the clutch master cylinder from the clutch pedal 5; 4 start car separation and reunion performance test device equipment through control unit, within 10 seconds, telescopic cylinder stretches out earlier then contracts, and control clutch pedal accomplishes a complete clutch pedal action, keeps the direction of constant speed and force consistent with force sensor axis direction, and control unit records the relation curve of lower power and stroke, experimental requirement: the damping change of the new clutch pedal is less than or equal to 5N, the damping change of the clutch pedal after the endurance test is less than or equal to 50 percent, and the damping characteristic test of the clutch pedal is completed.
The method for testing by applying the automobile clutch performance testing device also comprises a clutch system tightness testing method, and the clutch system tightness testing method comprises the following testing steps: 1, locking a clutch release lever on a gearbox at an initial stroke; 2 the control part controls the telescopic cylinder to drive the clutch pedal to move, so that the pedal force is gradually increased and fixed to be more than 200N, data in an empty box part of the automobile clutch performance test device is set to be zero, the telescopic cylinder applies force to the clutch pedal for more than 200N, the control part records a relation curve of the force and time, a force drop value after 15 minutes is read on a generated curve graph, and the test requirements are as follows: the value of the new clutch pedal force after reduction is more than or equal to 190N; the value of the clutch pedal force after the endurance test is reduced is more than or equal to 180N.
The method for testing by applying the automobile clutch performance testing device also comprises a durability testing method, and the durability testing method comprises the following testing steps: 1, performing clutch pedal characteristic test at normal temperature according to clutch characteristic curve test; 2, replacing the displacement sensor I to ensure that the stroke end has a force of more than 200N; 3 adjusting the frequency of the telescopic cylinder to obtain the test frequency of more than 40 telescopic cycles per minute; 4, recording the initial pedal stroke and pedal force before the test by the control part, wherein the test frequency is 100 ten thousand cycles; 5 requirements after the test: the maximum pedal force cannot be increased by 30 percent compared with the original pedal force; the damping characteristic requirement of a single clutch pedal is met; the requirement of system tightness is met; each part of the clutch system has no failure, no damage, no leakage and no noise, and if a single part is invalid or damaged, the performance and the appearance of the clutch system are separately tested, and the characteristic curve of the pedal is tested.
The method for testing by applying the automobile clutch performance testing device also comprises a clutch system expansion strength limit testing method, and the clutch system expansion strength limit testing method comprises the following testing steps: 1, mounting a clutch system according to an actual vehicle state; 2, locking a clutch release lever on the gearbox at the initial stroke; connecting a displacement sensor I and a force sensor I to the clutch pedal, and adjusting the position of the force sensor I to minimize the swing angle of a pedal movable part of the clutch pedal during movement; 4, testing the telescopic cylinder to be remotely controlled, gradually increasing the load until a certain piece is excessively damaged or broken by force, and recording a relation curve of deformation and force by a control part; 5 requirements after the test: after 800N is applied to the clutch pedal, the part cannot be damaged or broken, and the expansion strength of the clutch system meets the requirement.
The control part of the automobile clutch performance testing device is arranged on a testing device cabinet, the pedal travel range measured by the force sensor I is controlled to be 0-300 mm, the pedal force measured by the force sensor I is 0-200N, the working point separating force measured by the force sensor II is 0-2500N, and the travel range measured by the displacement sensor II is 0-30 mm.
By adopting the technical scheme of the invention, the following beneficial effects can be obtained:
the method for testing by applying the automobile clutch performance testing device has the advantages of simple structure, easiness in assembly, accuracy in test data acquisition, low cost, simple testing method steps, high repeatability and strong expandability, can be used for measuring the performances of parts and subsystems, measuring the temperature resistance of the clutch system, testing the durability of the clutch system, conveniently and accurately simulating the whole automobile state, shortening the development period, having a wide application range, providing reliable data support for product development and innovative design, and finally effectively improving the clutch performance of the product quality. The automobile clutch performance test device and method can accurately simulate the real automobile environment to perform corresponding test tests on the whole automobile clutch system, pertinently complete tests of verifying pedal force, pedal stroke, damping force, temperature resistance, durability, system tightness, clutch pedal damping, system ultimate strength and the like, and identify the risk of clutch performance in advance, so that a performance development engineer can perform matching verification of various parameters in advance in the early stage of automobile development, correlation verification of the system and the whole automobile can be performed after the real automobile comes out, verification data are accumulated, and clutch performance matching development verification can be effectively completed.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic structural diagram of an automobile clutch performance testing device according to the present invention;
FIG. 2 is a schematic structural diagram of a temperature control box of the automobile clutch performance testing device according to the present invention;
FIG. 3 is a schematic structural diagram of a separation executing rack of the automobile clutch performance testing device according to the present invention;
FIG. 4 is a schematic flow chart of a method for testing by using the automobile clutch performance testing device according to the present invention;
the reference numerals are respectively: 1. a test device cabinet; 2. a separate execution gantry; 3. mounting a bracket; 4. a cowl brace; 5. a clutch pedal; 6. a pedal tread; 7. a clutch master cylinder; 8. a stage base; 9. separating the executing support; 10. a flywheel bracket; 11. a hydraulic release bearing; 12. a clutch; 13. a clutch tube; 14. a displacement sensor I; 15. a force sensor I; 16. a force sensor II; 17. a displacement sensor II; 18. a control component; 19. a cabinet table-board; 20. a sliding guide rail I; 21. a bracket assembly I; 22. a bracket assembly II; 23. a sliding strip I; 24. an adjusting plate; 25. a clutch pedal bracket I; 26. a pedal body portion; 27. a pedal movable portion; 28. a clutch pedal bracket II; 29. a sliding guide rail II; 30. a sliding bar III; 31. a sliding strip II; 32. double-ear support; 33. adjusting the lifting lug; 34. an adjusting hook; 35. a hoisting ring; 36. a moving wheel I; 37. supporting an adjusting screw I; 38. a support plate I; 39. a moving wheel II; 40. supporting an adjusting screw II; 41. a support plate II; 42. a temperature control box; 43. a box body; 44. a temperature adjustment member; 45. a telescopic cylinder; 46. a flywheel; 47. brake fluid reservoir.
Detailed Description
The following detailed description of the embodiments of the present invention, such as the shapes and structures of the components, the mutual positions and connection relations among the components, the functions and operation principles of the components, will be made by referring to the accompanying drawings and the description of the embodiments:
as shown in the attached drawings 1-3, the invention relates to an automobile clutch performance test device, which comprises a test device cabinet 1 and a separation execution rack 2, wherein the test device cabinet 1 is provided with a mounting bracket 3 and a front coaming bracket 4, a clutch pedal 5 is connected with the front coaming bracket 4, one end of a telescopic cylinder 45 is movably connected with the mounting bracket 3, the other end of the telescopic cylinder 45 is connected with a pedal tread 6 of the clutch pedal 5, the clutch pedal 5 is connected with a clutch master cylinder 7 arranged on the front coaming bracket 4, the separation execution rack 2 comprises a rack base 8, the separation execution bracket 9 and a flywheel bracket 10 are arranged on the rack base 8, a hydraulic separation bearing 11 is arranged on the separation execution bracket 9, the hydraulic separation bearing 11 is connected with a clutch 12, the flywheel is arranged on the flywheel bracket 10, and the clutch 12 is connected with the flywheel, the clutch master cylinder 7 is connected with a hydraulic release bearing 11 through a clutch pipe 13, a displacement sensor I14 and a force sensor I15 are arranged between a telescopic cylinder 45 and the pedal tread 6, a force sensor II 16 is arranged between the hydraulic release bearing 11 and a clutch 12, a displacement sensor II 17 is arranged on the hydraulic release bearing 11, and the displacement sensor I14, the force sensor I15, the force sensor II 16 and the displacement sensor II 17 are respectively connected with a control component 18. Above-mentioned structure, when carrying out the separation and reunion performance test, realize through the cooperation of test device rack 1 and separation execution rack 2. The position change of the clutch pedal is realized by the external force applied by the telescopic cylinder on the pedal tread to drive the clutch pedal to move. In the process that the telescopic cylinder acts to drive the clutch pedal to act, the clutch pedal, the hydraulic release bearing, the clutch 12 and the flywheel simulate the whole vehicle clutch system to work. And the displacement sensor I14, the force sensor I15, the force sensor II 16 and the displacement sensor II 17 respectively collect data and feed back the collected data to the control part. The control part processes the collected data on a computer and then forms a clutch pedal characteristic test curve, so that the mutual relation among the stroke of the clutch pedal, the force of the clutch pedal, the motion stroke of a release bearing and the separation of the working point of a diaphragm spring of the clutch can be accurately simulated, the stroke force and displacement relation curve can be accurately formed, the data can be reliably collected in the automobile design process conveniently, the corresponding structure test is carried out, the automobile design quality can be improved conveniently, and excessive cost is not required to be invested in the test. The testing device provided by the invention can be conveniently and reliably used for testing the static performance and the durability of the clutch system assembly, and specifically comprises the following steps: the test method includes various tests such as a maximum pedal force test (Max pedal load) of a clutch operating system, a pedal stroke test (Travel), a free stroke test (freeslay), an initial pedal force test (Pre pedal load), a pedal return force test (Min pedal load), Drop-off, a system damping force test, a pedal holding force test, a temperature resistance test, a clutch pedal damping characteristic test, a clutch system sealing performance test, a durability test, and a clutch system expansion strength limit test. A force sensor II 16 is arranged between a hydraulic release bearing 11 and a diaphragm spring of a clutch 12 and used for measuring the release force of a working point at the diaphragm spring of the clutch, a displacement sensor II 17 is arranged on the side surface of the hydraulic release bearing 11 and used for measuring the X-direction (horizontal direction) displacement of the release bearing, the transmitting end of the displacement sensor II 17 is fixed on a release execution support 9, and after the force sensor II 16 (namely, a pressure type sensor II) and the displacement sensor II 17 are installed, a flywheel support 10 and the release execution support 9 are respectively fixed by bolts. The test device can accurately simulate the state of the clutch system of the whole automobile, test the clutch performance of the automobile in all seasons, ensure that the test of the clutch performance of the automobile is simple, convenient and efficient, shorten the development period, have wide application range and wide range of covering the clutch performance, provide reliable data support for product development and innovative design and effectively improve the product quality.
The automobile clutch performance testing device disclosed by the invention has the advantages of simple structure, easiness in assembly, accurate test data acquisition, low cost, simple testing method steps, high repeatability and strong expandability, can be used for measuring the performances of parts and subsystems, measuring the temperature resistance of a clutch system and testing the durability of the clutch system, can conveniently and accurately simulate the whole automobile state, shortens the development period, has a wider application range, provides reliable data support for product development and innovative design, and finally effectively improves the clutch performance of the product quality. The automobile clutch performance test device and method can accurately simulate the real automobile environment to perform corresponding test tests on the whole automobile clutch system, pertinently complete tests of verifying pedal force, pedal stroke, damping force, temperature resistance, durability, system tightness, clutch pedal damping, system ultimate strength and the like, and identify the risk of clutch performance in advance, so that a performance development engineer can perform matching verification of various parameters in advance in the early stage of automobile development, correlation verification of the system and the whole automobile can be performed after the real automobile comes out, verification data are accumulated, and clutch performance matching development verification can be effectively completed.
A sliding guide rail I20 is arranged on a cabinet table top 19 of a test device cabinet 1 of the automobile clutch performance test device, the sliding guide rail I20 is of a structure capable of extending towards the direction of a clutch pedal 5, a mounting support 4 comprises a support component I21 and a support component II 22, the lower end of the support component I21 and the lower end of the support component II 22 are respectively connected with a sliding strip I23, the sliding strip I23 is movably clamped on the sliding guide rail I20 through a clamping groove, a fastening bolt is screwed in a positioning hole in the sliding strip 23, the upper end of the support component I22 is connected with the upper end of the support component II 23 through an adjusting plate 24, one end, close to the support component II 23, of the adjusting plate 24 is provided with a clutch pedal support I25, the clutch pedal 5 comprises a pedal body part 26 and a pedal moving part 27, the upper end of the pedal moving part, the pedal body portion 26 is connected to the clutch pedal bracket i 25. Above-mentioned structure, leaning on countersunk bolt installation sliding guide I on the rack mesa, the installing support can remove about sliding guide I, has the scale on the rack mesa for the X of adjustment telescopic cylinder and separation and reunion footboard is to the interval, adjusts the relative position relation after, can be with the bolt for sliding guide I20 locking installing support.
Automobile clutch performance test device's preceding bounding wall support 4 on set up sliding guide II, separation and reunion pedal support II 28 clamps on sliding guide II through the draw-in groove activity, separation and reunion pedal support II 28 and sliding guide II all set up to the structure of arranging perpendicularly, separation and reunion pedal support II 28 sets up 4 sides of preceding bounding wall support near installing support 3 one side, separation and reunion pedal support II 28 on the locating hole screw up the fastening bolt. In the structure, the front wall plate bracket is provided with a brake liquid storage pot, a clutch pedal bracket II and a clutch main cylinder; clutch pedal support II can reciprocate on preceding bounding wall support, and preceding bounding wall support side has the scale for the Z of adjustment clutch pedal is to (vertical direction) position, through the adjustment, and the Z of clutch pedal is to the Z of high and telescopic cylinder to the height, makes telescopic cylinder's afterburning direction perpendicular to clutch pedal's central plane, makes the measurement more accurate, improves the convenience of use.
A sliding guide rail II 29 is arranged on a rack base 8 of the separation execution rack 2, a sliding strip III 30 at the lower end of the separation execution support 9 is movably clamped on the sliding guide rail II 29 through a clamping groove, a fastening bolt is screwed in a positioning hole in the sliding strip III 30, a sliding strip II 31 at the lower end of the flywheel support 10 is movably clamped on the sliding guide rail II 29 through the clamping groove, and the fastening bolt is screwed in the positioning hole in the sliding strip II 31. The above configuration enables the relative position between the separation performing bracket 9 and the flywheel bracket 10 to be adjusted, and also enables the position of the separation performing bracket 9 and the flywheel bracket 10 with respect to the testing device cabinet 1 to be adjusted. Therefore, the automobile clutch systems of different models can be tested, and the universality of the testing device is improved.
The bracket assembly I21 and the bracket assembly II 22 are respectively and vertically arranged on the sliding strip I23, and one end of the telescopic cylinder 45, which is connected with the mounting bracket 3, is movably connected with the upper part of the bracket assembly I21 through a double-lug support 32. An adjusting lifting lug 33 is arranged at the position, close to the clutch pedal 5, of the adjusting plate 24, the adjusting lifting lug 33 is connected with an adjusting hook 34, a lifting ring 35 is arranged at one end, close to the end connected with the pedal tread 6, of the telescopic cylinder 45, and the adjusting structure 34 is hooked on the lifting ring 35. In the structure, the telescopic cylinder on the mounting bracket is connected with one end of the double-lug support, one end of the telescopic cylinder forest is connected with the clutch pedal, and the force sensor I and the displacement sensor are arranged between the clutch pedal and the telescopic cylinder and used for measuring the force and the stroke of the clutch pedal. The double-lug support can move up and down on the mounting bracket, a graduated scale is arranged on the side surface of the mounting bracket and used for adjusting the vertical height of the double-lug support, and the double-lug support is locked by a bolt after being adjusted in place; force transducer I leans on special fixture to be connected with the separation and reunion footboard, and displacement sensor I's flexible end is connected with the separation and reunion footboard side, and displacement sensor I fixes the side at telescopic cylinder. Install regulating plate and separation and reunion footboard support I on the installing support, the regulating plate is equipped with adjusts lug and regulation hook for telescopic cylinder's upper and lower position effectively avoids because the footboard is the stress concentration problem that produces when circular motion.
The test device cabinet 1 bottom of car separation and reunion performance test device set up a plurality of removal wheels I36, 1 bottom of test device cabinet still sets up a plurality of support adjusting screw I37, support the screw hole of I37 upper end of adjusting screw and 1 bottom of test device cabinet and twist to adorn and be connected, support adjusting screw I37 lower extreme and set up and support plate I38, support adjusting screw I37 and support and set up to being the font structure of falling T between the plate I38. 2 bottoms of separation execution rack of car separation and reunion performance test device set up a plurality of wheels II 39 that remove, 2 bottoms of separation execution rack still set up a plurality of II 40 of support adjusting screw, support adjusting screw II 40 upper end and the threaded hole of 2 bottoms of separation execution rack and twist the dress and connect, support II 40 lower extreme of adjusting screw and set up and support II 41 of plate, support and set up between adjusting screw II 40 and the support II 41 of plate to be the font structure of falling T. The moving wheel realizes reliable movement of the test device, and the supporting adjusting screw rod stretches up and down through rotation, so that the moving wheel is separated from the ground, the contact between the supporting plate and the ground can be realized, and the test device is reliably supported. The device is prevented from shaking or moving when being stressed in the test process.
The automobile clutch performance testing device further comprises a temperature control box 42, the temperature control box 42 comprises a box body 43 and a plurality of temperature adjusting parts 44, the temperature adjusting parts 44 are arranged at different positions of the box body 43, and the testing device cabinet 1 and the separation execution rack 2 of the automobile clutch performance testing device are arranged into structures capable of being placed in the box body 43. The temperature control box can adjust the temperature in the box body within the range meeting the test requirements, and is convenient to test under different temperature conditions, so that different temperature environments can be simulated completely, and the reliability is improved.
The automobile clutch performance testing device is characterized in that a displacement sensor I14 is a stay-supported displacement sensor, a force sensor I15 is a pressure type force sensor, a force sensor II 16 is a pressure type force sensor, and a displacement sensor II 17 is a grating type displacement sensor.
The invention also relates to a method for testing the clutch performance of the applied automobile, which has the advantages of simple steps, low input cost, capability of accurately simulating the state of the clutch system of the whole automobile and testing the clutch performance of the automobile all the season, simple, convenient and efficient test of the clutch performance of the automobile, shortened development period, wide application range and wide range of clutch performance coverage, provides reliable data support for product development and innovative design and finally effectively improves the product quality.
As shown in fig. 4, the testing device for the clutch performance of the application vehicle comprises a testing device cabinet 1 and a separation executing rack 2, the method for testing the clutch performance of the application vehicle comprises a clutch pedal characteristic testing method, and the testing steps of the clutch pedal characteristic testing method are as follows: 1, arranging a clutch system on an automobile clutch performance test device according to the state of the whole automobile, and checking the installation state of the clutch system; 2, respectively installing a displacement sensor I14, a force sensor I15, a force sensor II 16 and a displacement sensor II 17 in place, and respectively connecting the displacement sensor I14, the force sensor I15, the force sensor II 16 and the displacement sensor II 17 with a control part 18; 3, starting the automobile clutch performance test device through the control part, controlling the telescopic cylinder 45 to act by the control part 18, extending and then contracting the telescopic cylinder 45 within a set time, controlling the clutch pedal 5 to complete a complete clutch pedal action, and keeping the direction of a constant speed and the direction of a force to be consistent with the direction of the axis of the force sensor I when the telescopic cylinder 45 acts; the 4 displacement sensors I14, the force sensors I15, the force sensors II 16 and the displacement sensors II 17 respectively feed back measurement data in the clutch pedal action completing process to the control part 18, the control part collects and processes the measurement data to form a clutch pedal characteristic test curve reflecting the force and stroke relation of the clutch pedal, the maximum pedal force, the pedal stroke and the free stroke, the initial pedal force, the pedal return force, Drop-off (force Drop), the system damping force and the pedal holding force are all displayed on the clutch pedal characteristic test curve, and the clutch pedal characteristic test is completed.
When the installation state of the clutch system is checked, the following states of the clutch system are confirmed before the installation of the clutch system: 1, the pedal movable part 27 of the clutch pedal 5 has flexible action in the whole working stroke and has no abnormal noise; the pedal movable part 27 of the clutch pedal 5 cannot be pushed in advance after the pedal is installed; 2 working cylinders of the clutch main cylinder 7, the hydraulic release bearing 11 and the clutch 12 are free from corrosion, damage, abnormal function and the like; 3 the rigidity of the clutch main cylinder 7 and the clutch main cylinder (7) bracket is required to minimize the pump stroke loss and ensure the use reliability under the working force within a set range.
When the installation state of the clutch system is checked, the clutch system is installed according to the arrangement coordinates of the whole vehicle state, a specified route and a specified position arranged on the whole vehicle are simulated, the check is carried out according to the whole vehicle state and the exhaust requirement, and after the displacement sensor I14, the force sensor I15, the force sensor II 16 and the displacement sensor II 17 are respectively installed in place, the swing angle of the pedal moving part 27 of the clutch pedal 5 is minimum during the action period.
When the installation state of the clutch system is checked, the clutch system is installed according to the arrangement coordinates of the whole vehicle state, brake fluid is filled in the liquid storage tank, the clutch pedal is ensured to be located at the stroke starting position, the exhaust valve on the hydraulic release bearing 11 is opened, the pedal tread 6 of the clutch pedal 5 is pressed until the stroke is finished, the exhaust valve is closed, the pedal tread 6 is placed at the stroke starting position again, the operation is repeated for 2 times to 5 times until no air is exhausted from the exhaust valve, and meanwhile, the brake fluid flowing out of the liquid storage tank is enabled to be free of air bubbles.
The method for testing by applying the automobile clutch performance testing device also comprises a temperature resistance testing method, and the temperature resistance testing method comprises the following testing steps: 1, performing clutch pedal characteristic test at normal temperature to obtain a clutch pedal characteristic test curve; 2, placing the automobile clutch performance test device and the clutch system into a temperature control box 42, wherein the application temperature range of the temperature control box 42 is-50 ℃ to +120 ℃; the temperature tolerance is +/-1 ℃; 3, respectively placing the clutch performance testing device and the clutch system for 6-8 hours at room temperature, room temperature of-20 ℃ and-20 ℃ to-40 ℃ in sequence; 4, after the placement is finished, the control component 18 controls the telescopic cylinder 45 to push the clutch pedal 5 to act for 2-3 times within 2min, the displacement of a master cylinder piston is not limited, the interval time of pushing each time is 30s, the return characteristic of the clutch system is measured, and the flexibility of the piston action and the leakage condition are observed; 5 requirements after the test: at normal temperature, the return time of the clutch pedal is less than or equal to 0.5s, and no hysteresis phenomenon occurs; when the room temperature reaches-20 ℃, the clutch pedal return time is less than or equal to 0.9 s; the temperature is-20 ℃ to-40 ℃, the clutch pedal can return, and the system has no leakage.
The method for testing by applying the automobile clutch performance testing device also comprises a clutch pedal damping characteristic testing method, and the clutch pedal damping characteristic testing method comprises the following experimental steps: 1, connecting a displacement sensor I14 and a force sensor I15 to a clutch pedal 5; 2 adjusting the position of the force sensor I15 to minimize the swing angle of the pedal movable part 27 of the clutch pedal 5 during the action; 3, separating the clutch master cylinder 7 from the clutch pedal 5; 4 start car separation and reunion performance test device equipment through control unit 18, within 10 seconds, telescopic cylinder 45 stretches out earlier and contracts, and control clutch pedal 5 accomplishes a complete clutch pedal action, keeps the direction of constant speed and force consistent with force sensor axis direction, and control unit 18 records down the relation curve of force and stroke, the test requirement: the damping change of the new clutch pedal 5 is less than or equal to 5N, the damping change of the clutch pedal 5 after the endurance test is less than or equal to 50 percent, and the damping characteristic test of the clutch pedal is completed.
The method for testing by applying the automobile clutch performance testing device also comprises a clutch system tightness testing method, and the clutch system tightness testing method comprises the following testing steps: 1, locking a clutch release lever on a gearbox at an initial stroke; 2 the control part 18 controls the telescopic cylinder 45 to drive the clutch pedal to move, so that the pedal force is gradually increased and fixed to be more than 200N, data in an empty box part of the automobile clutch performance test device is set to be zero, the telescopic cylinder 45 applies force of more than 200N to the clutch pedal, the control part 18 records a relation curve of the force and time, a force reduction value after 15 minutes is read out from a generated curve graph, and the test requirements are as follows: the value of the new clutch pedal 5 after the force is reduced is more than or equal to 190N; the value of the force of the clutch pedal 5 after the endurance test is reduced is more than or equal to 180N.
The method for testing by applying the automobile clutch performance testing device also comprises a durability testing method, and the durability testing method comprises the following testing steps: 1, performing clutch pedal characteristic test at normal temperature according to clutch characteristic curve test; 2, replacing the force sensor I14 to ensure that the stroke end has a force of more than 200N; 3 adjusting the frequency of the telescopic cylinder 45 to obtain the test frequency of more than 40 telescopic cycles per minute; 4, the control part 18 records the initial pedal stroke and the pedal force before the test is started, and the test frequency is 100 ten thousand cycles; 5 requirements after the test: the maximum pedal force cannot be increased by 30 percent compared with the original pedal force; the damping characteristic requirement of a single clutch pedal is met; the requirement of system tightness is met; each part of the clutch system has no failure, no damage, no leakage and no noise, and if a single part is invalid or damaged, the performance and the appearance of the clutch system are separately tested, and the characteristic curve of the pedal is tested.
The method for testing by applying the automobile clutch performance testing device also comprises a clutch system expansion strength limit testing method, and the clutch system expansion strength limit testing method comprises the following testing steps: 1, mounting a clutch system according to an actual vehicle state; 2, locking a clutch release lever on the gearbox at the initial stroke; 3, connecting a displacement sensor I14 and a force sensor I15 to the clutch pedal 5, and adjusting the position of the force sensor I15 to minimize the swing angle of a pedal movable part 27 of the clutch pedal 5 during movement; 4, testing the remotely operated telescopic cylinder 45, gradually increasing the load until one part is excessively damaged or broken by force, and recording a relation curve of deformation and force by the control part 18; 5 requirements after the test: after 800N is applied to the clutch pedal 5, the part cannot be damaged or broken, and the expansion strength of the clutch system is satisfactory.
The control component 18 of the automobile clutch performance testing device is arranged on the testing device cabinet 1, the pedal travel range measured by the force sensor I15 is controlled to be 0-300 mm, the pedal force range measured by the force sensor I is 0-200N, the working point separating force range measured by the force sensor II 16 is 0-2500N, and the travel range measured by the displacement sensor II 17 is 0-30 mm.
The automobile clutch performance testing device disclosed by the invention has the advantages of simple structure, easiness in assembly, accurate test data acquisition, low cost, simple testing method steps, high repeatability and strong expandability, can be used for measuring the performances of parts and subsystems, measuring the temperature resistance of a clutch system and testing the durability of the clutch system, can conveniently and accurately simulate the whole automobile state, shortens the development period, has a wider application range, provides reliable data support for product development and innovative design, and finally effectively improves the clutch performance of the product quality. The automobile clutch performance test device and method can accurately simulate the real automobile environment to perform corresponding test tests on the whole automobile clutch system, pertinently complete tests of verifying pedal force, pedal stroke, damping force, temperature resistance, durability, system tightness, clutch pedal damping, system ultimate strength and the like, and identify the risk of clutch performance in advance, so that a performance development engineer can perform matching verification of various parameters in advance in the early stage of automobile development, correlation verification of the system and the whole automobile can be performed after the real automobile comes out, verification data are accumulated, and clutch performance matching development verification can be effectively completed.
The present invention has been described in connection with the accompanying drawings, and it is to be understood that the invention is not limited to the specific embodiments disclosed, but is intended to cover various modifications, changes and equivalents of the embodiments of the invention, and its application to other applications without departing from the spirit and scope of the invention.
Claims (10)
1. A method for testing by using an automobile clutch performance testing device is characterized in that: the device for testing the clutch performance of the application automobile comprises a testing device cabinet (1) and a separation executing rack (2), the method for testing the clutch performance of the application automobile comprises a clutch pedal characteristic testing method, and the clutch pedal characteristic testing method comprises the following testing steps:
1) arranging a clutch system on the automobile clutch performance testing device according to the state of the whole automobile, and checking the installation state of the clutch system;
2) respectively installing a displacement sensor I (14), a force sensor I (15), a force sensor II (16) and a displacement sensor II (17) in place, and respectively connecting the force sensor I (14), the force sensor I (15), the force sensor II (16) and the displacement sensor II (17) with a control part (18);
3) the automobile clutch performance test device is started through the control part, the control part (18) controls the telescopic cylinder (45) to act, the telescopic cylinder (45) extends out and then contracts in set time, the clutch pedal (5) is controlled to complete a complete clutch pedal action, and the direction of a constant speed and a force is consistent with the axis direction of the force sensor I when the telescopic cylinder (45) acts;
4) the displacement sensor I (14), the force sensor I (15), the force sensor II (16) and the displacement sensor II (17) respectively feed back measurement data in the clutch pedal action process to the control part (18), the control part collects and processes the measurement data to form a clutch pedal characteristic test curve reflecting the relation between the force and the stroke of the clutch pedal, the maximum pedal force, the pedal stroke and the free stroke are displayed on the clutch pedal characteristic test curve, and the clutch pedal characteristic test is completed.
2. The method for testing by using the automobile clutch performance testing device according to claim 1, characterized in that: when the installation state of the clutch system is checked, the following states of the clutch system are confirmed before the installation of the clutch system:
1) the pedal moving part (27) of the clutch pedal (5) has flexible action in the whole working stroke and no abnormal noise; the pedal moving part (27) of the clutch pedal (5) cannot be pushed in advance after the pedal is installed;
2) the clutch main cylinder (7) and the hydraulic release bearing (11) have no phenomena of corrosion, damage, abnormal function and the like;
3) the rigidity of the clutch master cylinder (7) and the clutch working cylinder bracket is required to minimize the pump stroke loss and ensure the use reliability under the working force within a set range.
3. The method for testing by using the automobile clutch performance testing device according to claim 1 or 2, characterized in that: when the installation state of the clutch system is checked, the clutch system is installed according to the arrangement coordinates of the whole vehicle state, a specified route and a specified position arranged on the whole vehicle are simulated, the check is carried out according to the whole vehicle state and the exhaust requirement, and after the displacement sensor I (14), the force sensor I (15), the force sensor II (16) and the displacement sensor II (17) are respectively installed in place, the swing angle of the pedal moving part (27) of the clutch pedal (5) during the action period is minimum.
4. The method for testing by using the automobile clutch performance testing device according to claim 1 or 2, characterized in that: when the installation state of the clutch system is checked, the clutch system is installed according to the arrangement coordinates of the whole vehicle state, brake fluid is filled in the liquid storage tank, the clutch pedal is ensured to be located at the stroke starting position, the exhaust valve on the hydraulic release bearing (11) is opened, the pedal tread (6) of the clutch pedal (5) is pressed until the stroke is finished, the exhaust valve is closed, the pedal tread (6) is placed at the stroke starting position again, the operation is repeated for 2 times to 5 times until the exhaust valve does not have air to be exhausted, and meanwhile, the brake fluid flowing out of the liquid storage tank is enabled to be free of air bubbles.
5. The method for testing by using the automobile clutch performance testing device according to claim 1, characterized in that: the method also comprises a temperature resistance test method, and the temperature resistance test method comprises the following test steps:
1) performing clutch pedal characteristic test at normal temperature to obtain a clutch pedal characteristic test curve;
2) the automobile clutch performance test device and the clutch system are placed in a temperature control box (42), and the application temperature range of the temperature control box (42) is-50 ℃ to +120 ℃; the temperature tolerance is +/-1 ℃;
3) respectively placing the clutch performance test device and the clutch system for 6-8 h at room temperature, room temperature of-20 ℃ and-20 ℃ to-40 ℃ in sequence;
4) after the placement is finished, the control component (18) controls the telescopic cylinder (45) to push the clutch pedal (5) to act for 2-3 times within 2min, the displacement of a master cylinder piston is not limited, the interval time of pushing each time is 30s, the return characteristic of the clutch system is measured, and the flexibility of the piston action and the leakage condition are observed;
5) the requirements after the test are as follows: at normal temperature, the return time of the clutch pedal is less than or equal to 0.5s, and no hysteresis phenomenon occurs; when the room temperature reaches-20 ℃, the clutch pedal return time is less than or equal to 0.9 s; the temperature is-20 ℃ to-40 ℃, the clutch pedal can return, and the system has no leakage.
6. The method for testing by using the automobile clutch performance testing device according to claim 1, characterized in that: the method also comprises a clutch pedal damping characteristic test method, and the clutch pedal damping characteristic test method comprises the following test steps:
1) connecting a displacement sensor I (14) and a force sensor I (15) to a clutch pedal (5);
2) adjusting the position of a force sensor I (15) to minimize the swing angle of a pedal movable part (27) of a clutch pedal (5) during action;
3) separating the clutch main cylinder (7) from the clutch pedal (5);
4) the automobile clutch performance test device is started through the control part (18), the telescopic cylinder (45) firstly extends and then contracts within 10 seconds, the clutch pedal (5) is controlled to complete a complete clutch pedal action, the direction of a constant speed and a force is kept consistent with the direction of the axis of the force sensor, the control part (18) records a relation curve of the force and the stroke, and the test requirement is as follows: the damping change of the new clutch pedal (5) is less than or equal to 5N, the damping change of the clutch pedal (5) after the endurance test is less than or equal to 50 percent, and the damping characteristic test of the clutch pedal is completed.
7. The method for testing by using the automobile clutch performance testing device according to claim 1, characterized in that: the method also comprises a clutch system tightness test method, and the clutch system tightness test method comprises the following test steps:
1) locking a clutch release lever on a transmission at an initial stroke;
2) the control component (18) controls the telescopic cylinder (45) to drive the clutch pedal to move, so that the pedal force is gradually increased and fixed to be more than 200N, data in an empty box component of the automobile clutch performance testing device is set to zero, the telescopic cylinder (45) applies force to the clutch pedal for more than 200N, the control component (18) records a relation curve of the force and time, a force reduction value after 15 minutes is read on the generated curve graph, and the test requirements are as follows: the value of the new clutch pedal (5) after the force is reduced is more than or equal to 190N; the value of the force of the clutch pedal (5) after the endurance test is reduced is more than or equal to 180N.
8. The method for testing by using the automobile clutch performance testing device according to claim 1, characterized in that: the method also comprises a durability test method, and the durability test method comprises the following test steps:
1) performing clutch pedal characteristic test at normal temperature according to the clutch characteristic curve test;
2) replacing the displacement sensor I (14) to ensure that the stroke end has a force of more than 200N;
3) adjusting the frequency of the telescopic cylinder (45) to obtain the test frequency of more than 40 telescopic cycles per minute;
4) the control part (18) records the initial pedal stroke and the pedal force before the test is started, and the test times are 100 ten thousand cycles; 5) the requirements after the test are as follows: the maximum pedal force cannot be increased by 30 percent compared with the original pedal force; the damping characteristic requirement of a single clutch pedal is met; the requirement of system tightness is met; each part of the clutch system has no failure, no damage, no leakage and no noise, and when the single part is invalid and damaged, the performance and the appearance of the part are independently tested, and the characteristic curve of the pedal is tested.
9. The method for testing by using the automobile clutch performance testing device according to claim 1, characterized in that: the method also comprises a clutch system expansion intensity limit test method, and the clutch system expansion intensity limit test method comprises the following test steps:
1) installing the clutch system according to the real vehicle state;
2) locking a clutch release lever on a transmission at an initial stroke;
3) connecting a displacement sensor I (14) and a force sensor I (15) to the clutch pedal (5), and adjusting the position of the force sensor I (15) to minimize the swing angle of a pedal movable part (27) of the clutch pedal (5) during movement;
4) testing the remotely operated telescopic cylinder (45), gradually increasing the load until one part is excessively damaged or broken by force, and recording a relation curve of deformation and force by the control part (18);
5) the requirements after the test are as follows: after 800N is applied to the clutch pedal (5), the part cannot be damaged or broken, and the expansion strength of the clutch system meets the requirement.
10. The method for testing by using the automobile clutch performance testing device according to claim 1, characterized in that: the control component (18) of the automobile clutch performance testing device is arranged on a cabinet (1) of the testing device, the pedal travel range measured by a displacement sensor I (14) is controlled to be 0-300 mm, the pedal force range measured by a force sensor I (15) is 0-200N, the working point separating force range measured by a force sensor II (16) is 0-2500N, and the travel range measured by a displacement sensor II (17) is 0-30 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011531063.1A CN112444412A (en) | 2020-12-22 | 2020-12-22 | Method for testing by applying automobile clutch performance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011531063.1A CN112444412A (en) | 2020-12-22 | 2020-12-22 | Method for testing by applying automobile clutch performance testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112444412A true CN112444412A (en) | 2021-03-05 |
Family
ID=74739231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011531063.1A Pending CN112444412A (en) | 2020-12-22 | 2020-12-22 | Method for testing by applying automobile clutch performance testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112444412A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061941A (en) * | 2021-10-18 | 2022-02-18 | 吉林大学 | Experimental environment adjusting test method and system for new energy vehicle gearbox and test box |
| CN114674554A (en) * | 2022-03-10 | 2022-06-28 | 一汽解放汽车有限公司 | Test bench and test method for commercial vehicle clutch control system |
| CN116337483A (en) * | 2023-05-29 | 2023-06-27 | 常州市豪德车辆配件有限公司 | Automobile pedal performance testing device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353544A (en) * | 2011-08-11 | 2012-02-15 | 浙江大学台州研究院 | Automobile pedal operating mechanism assembly performance test board |
| KR20140087736A (en) * | 2012-12-31 | 2014-07-09 | (주)심원 | Endurance test apparatus |
| CN104422592A (en) * | 2013-08-27 | 2015-03-18 | 上海汽车集团股份有限公司 | Vehicle clutch system performance test-bench device and test system comprising same |
| DE102013218477A1 (en) * | 2013-09-16 | 2015-03-19 | Zf Friedrichshafen Ag | Device for functional testing of couplings |
| CN105628376A (en) * | 2014-10-29 | 2016-06-01 | 广州汽车集团股份有限公司 | Performance testing device of automobile clutch system |
| CN106595990A (en) * | 2017-02-17 | 2017-04-26 | 河北工程技术高等专科学校 | Automobile clutch booster air tightness detection apparatus |
| CN109357866A (en) * | 2018-12-28 | 2019-02-19 | 上汽通用五菱汽车股份有限公司 | A kind of automobile clutch system test-bed |
| CN109781429A (en) * | 2018-12-05 | 2019-05-21 | 合肥百川自动化科技有限公司 | A kind of automobile brake and clutch pedal performance and endurance test mechanism |
-
2020
- 2020-12-22 CN CN202011531063.1A patent/CN112444412A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353544A (en) * | 2011-08-11 | 2012-02-15 | 浙江大学台州研究院 | Automobile pedal operating mechanism assembly performance test board |
| KR20140087736A (en) * | 2012-12-31 | 2014-07-09 | (주)심원 | Endurance test apparatus |
| CN104422592A (en) * | 2013-08-27 | 2015-03-18 | 上海汽车集团股份有限公司 | Vehicle clutch system performance test-bench device and test system comprising same |
| DE102013218477A1 (en) * | 2013-09-16 | 2015-03-19 | Zf Friedrichshafen Ag | Device for functional testing of couplings |
| CN105628376A (en) * | 2014-10-29 | 2016-06-01 | 广州汽车集团股份有限公司 | Performance testing device of automobile clutch system |
| CN106595990A (en) * | 2017-02-17 | 2017-04-26 | 河北工程技术高等专科学校 | Automobile clutch booster air tightness detection apparatus |
| CN109781429A (en) * | 2018-12-05 | 2019-05-21 | 合肥百川自动化科技有限公司 | A kind of automobile brake and clutch pedal performance and endurance test mechanism |
| CN109357866A (en) * | 2018-12-28 | 2019-02-19 | 上汽通用五菱汽车股份有限公司 | A kind of automobile clutch system test-bed |
Non-Patent Citations (2)
| Title |
|---|
| 洛阳拖拉机研究所: "《拖拉机离合器台架试验方法 JB/T 6703.1-2000》", 31 August 2000 * |
| 陆艺等: "基于高速数据采集的离合器踏板特性测试系统", 《汽车技术》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061941A (en) * | 2021-10-18 | 2022-02-18 | 吉林大学 | Experimental environment adjusting test method and system for new energy vehicle gearbox and test box |
| CN114061941B (en) * | 2021-10-18 | 2023-12-19 | 吉林大学 | Experimental environment adjustment test method and system for new energy vehicle gearbox and test box |
| CN114674554A (en) * | 2022-03-10 | 2022-06-28 | 一汽解放汽车有限公司 | Test bench and test method for commercial vehicle clutch control system |
| CN114674554B (en) * | 2022-03-10 | 2024-04-09 | 一汽解放汽车有限公司 | Test bench and test method of clutch control system of commercial vehicle |
| CN116337483A (en) * | 2023-05-29 | 2023-06-27 | 常州市豪德车辆配件有限公司 | Automobile pedal performance testing device |
| CN116337483B (en) * | 2023-05-29 | 2023-09-05 | 常州市豪德车辆配件有限公司 | Automobile pedal performance testing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112444412A (en) | Method for testing by applying automobile clutch performance testing device | |
| US20200378869A1 (en) | Compact testing module, automated system and approach for hydraulic damper valve experiments | |
| CN108982262A (en) | A kind of rubber material multichannel fatigue experimental device and method | |
| CN103792056B (en) | A kind of microcomputer controls automotive seat and jolts wriggling testing stand | |
| CN205449514U (en) | Automobile pedal detection device | |
| CN104236923B (en) | Multifunctional durability test device for testing durability of automobile brake parts | |
| CN108871789B (en) | Gear shifting performance testing device and gear shifting performance testing method for automobile power system | |
| CN103115600A (en) | Testing device for free clearances of automatic brake clearance adjusting arms of automobiles | |
| CN106596138B (en) | Electronic accelerator pedal performance online test bench | |
| CN214667667U (en) | Automobile clutch performance test device | |
| CN210776233U (en) | Semi-physical simulation test bed for microcomputer type antiskid device of train | |
| CN112525555A (en) | Automobile clutch performance test device | |
| CN110779823A (en) | Tool for detecting wear life of automobile brake pad | |
| CN112697450B (en) | System and method for testing reliability of automobile brake pedal | |
| CN208132353U (en) | A kind of assembly device of automobile vacuum booster and master cylinder | |
| CN202693330U (en) | Special fixture for vehicle clutch and accelerator pedal performance test bench rack | |
| CN105953966A (en) | Pedal force characteristic test bench | |
| CN1177198C (en) | Fixed type detection equipment for plated surface of vehicle footplate | |
| CN109556894A (en) | Rolling stock's brake clamp single test system and method | |
| CN203561493U (en) | A pedal durableness measuring apparatus | |
| CN203116722U (en) | Automobile brake clearance automatic adjusting arm free clearance testing device | |
| CN208476531U (en) | A kind of new energy automatic transmission assembly testing bench frame | |
| CN112729809A (en) | Endurance test device and test method for EBS brake valve | |
| CN205919971U (en) | Automobile pedal unit capability test platform | |
| CN208421629U (en) | The ramp ECU simulator applied to electronic parking engine bench test |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Room 627, enterprise service center, No.17, section 3, Lingang Avenue, Lingang Economic Development Zone, Yibin City, Sichuan Province, 644000 Applicant after: Yibin Yizhi New Energy Vehicle Technology Co.,Ltd. Address before: Room 627, enterprise service center, No.17, section 3, Lingang Avenue, Lingang Economic Development Zone, Yibin City, Sichuan Province, 644000 Applicant before: Yibin Tongji Automobile Research Institute Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210305 |
|
| RJ01 | Rejection of invention patent application after publication |