CN117969057A - Bench test method and system for bonding durability of brake pad sound damping sheet - Google Patents
Bench test method and system for bonding durability of brake pad sound damping sheet Download PDFInfo
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- CN117969057A CN117969057A CN202410007250.1A CN202410007250A CN117969057A CN 117969057 A CN117969057 A CN 117969057A CN 202410007250 A CN202410007250 A CN 202410007250A CN 117969057 A CN117969057 A CN 117969057A
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- bonding
- braking
- test
- initial
- silencing
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- 238000013016 damping Methods 0.000 title claims abstract description 36
- 238000010998 test method Methods 0.000 title claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 78
- 230000030279 gene silencing Effects 0.000 claims abstract description 60
- 238000000034 method Methods 0.000 claims description 10
- 238000012795 verification Methods 0.000 abstract description 5
- 238000011161 development Methods 0.000 abstract description 4
- 230000003584 silencer Effects 0.000 description 11
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012356 Product development Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- SRSXLGNVWSONIS-UHFFFAOYSA-N benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 description 1
- 229940092714 benzenesulfonic acid Drugs 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
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- Braking Arrangements (AREA)
Abstract
The invention discloses a bonding durability bench test method and a bonding durability bench test system for a brake pad sound damping sheet, which specifically comprise the following steps: recording the bonding condition of the silencing sheet on the friction sheet assembly to obtain an initial bonding state of the silencing sheet; the friction plate assembly with the silencing plate is installed; controlling the initial temperature, the initial braking speed, the final braking speed and the braking pressure of the brake disc to carry out a braking test and simultaneously recording the bonding condition of the silencing sheets on the friction sheet assembly to obtain a bonding test state of the silencing sheets; by comparing the bonding test state of the silencing sheet with the initial bonding state of the silencing sheet, the invention can evaluate the bonding durability of the silencing sheet in the friction sheet assembly, solves the problem that the silencing sheet of the friction sheet assembly has no bonding durability test, and ensures that the development and verification of products are more sufficient.
Description
Technical Field
The invention relates to the technical field of automobile tests, in particular to a method and a system for testing bonding durability of a brake pad sound damping sheet.
Background
In the development of the current disc brake products, the friction plate assemblies are adhered to the back plate side, and the adhesive strength of the friction plate assemblies to the friction plate assemblies in the industry is limited to the pulling force of the friction plate assemblies, but the adhesive durability of the friction plate assemblies is not tested, so that the defect of verification in the product development process is caused, and the adhesive durability of the friction plate cannot be evaluated.
Disclosure of Invention
The invention provides a bonding durability bench test method and a bonding durability bench test system for a damping plate of a brake pad, which can evaluate the bonding durability of the damping plate in a friction plate assembly, solve the problem that the damping plate of the friction plate assembly is not subjected to a bonding durability test, and enable the development and verification of products to be more complete.
According to the first aspect of the embodiment of the invention, the bench test method for bonding durability of the damping plate of the brake pad comprises the following steps:
recording the bonding condition of the silencing sheet on the friction sheet assembly to obtain an initial bonding state of the silencing sheet;
the friction plate assembly with the silencing plate is installed;
Controlling the initial temperature, the initial braking speed, the final braking speed and the braking pressure of the brake disc to carry out a braking test and simultaneously recording the bonding condition of the silencing sheets on the friction sheet assembly to obtain a bonding test state of the silencing sheets;
and comparing the bonding test state of the sound damping sheet with the bonding initial state of the sound damping sheet.
According to some embodiments of the present invention, the controlling the initial temperature, the initial braking speed, the final braking speed, and the braking pressure of the brake disc to perform the braking test while recording the adhesion of the silencer plate on the friction plate assembly to obtain the adhesion test state of the silencer plate includes:
And controlling the initial braking speed, the final braking speed and the braking pressure in different initial temperatures to circularly brake for a plurality of times, and recording the bonding condition of the silencing sheets on the friction sheet assembly.
According to some embodiments of the present invention, the controlling the initial temperature, the initial braking speed, the final braking speed, and the braking pressure of the brake disc to perform the braking test while recording the adhesion of the silencer plate on the friction plate assembly to obtain the adhesion test state of the silencer plate further includes:
the initial temperature of the brake disc is controlled to gradually increase.
According to some embodiments of the invention, the incremental amplitude of the initial temperature of the control brake disc is maintained at a preset amplitude value.
According to some embodiments of the present invention, the controlling the initial temperature, the initial braking speed, the final braking speed, and the braking pressure of the brake disc to perform the braking test while recording the adhesion of the silencer plate on the friction plate assembly to obtain the adhesion test state of the silencer plate further includes:
And controlling the initial braking speed and the final braking speed in each cycle braking to decrease in sequence for multiple times of test braking.
According to some embodiments of the present invention, the controlling the initial temperature, the initial braking speed, the final braking speed, and the braking pressure of the brake disc to perform the braking test while recording the adhesion of the silencer plate on the friction plate assembly to obtain the adhesion test state of the silencer plate further includes:
and controlling the initial braking speed and the final braking speed in each test braking to be kept at a preset difference value.
According to some embodiments of the present invention, the controlling the initial temperature, the initial braking speed, the final braking speed, and the braking pressure of the brake disc to perform the braking test while recording the adhesion of the silencer plate on the friction plate assembly to obtain the adhesion test state of the silencer plate further includes:
the brake pressure controlled in each cycle of braking is controlled to be maintained at a preset pressure value.
According to some embodiments of the invention, the recording of the adhesion of the silencer plate to the friction plate assembly includes: and recording the bonding condition of the silencing sheet on the friction sheet assembly in a photographing mode.
According to some embodiments of the invention, the mounting of the friction plate assembly with the sound damping plate on the brake test stand includes:
The friction plate assembly with the sound deadening plate is mounted at a position consistent with the mounting position of the whole vehicle, and the test inertia at the full load mass of the vehicle is confirmed.
According to a second aspect of the embodiment of the invention, a brake pad sound damping sheet bonding durability bench test system comprises:
the collecting module is used for recording the bonding condition of the silencing sheets on the friction sheet assembly to obtain an initial bonding state of the silencing sheets and a bonding test state of the silencing sheets;
The brake test module is used for installing a friction plate assembly with a silencing plate; and controlling the initial temperature, the initial braking speed, the final braking speed and the braking pressure of the brake disc to carry out a braking test.
According to the method and the system for testing the bonding durability bench of the brake pad sound damping sheet, provided by the embodiment of the invention, the method and the system have the following beneficial effects:
The initial temperature, the initial braking speed, the final braking speed and the braking pressure of the brake disc are used for braking tests to simulate the actual working condition of a real vehicle so as to obtain the bonding test state of the sound damping sheet, and then the bonding test state of the sound damping sheet is compared with the initial bonding state of the sound damping sheet, so that the bonding durability of the sound damping sheet in the friction sheet assembly can be evaluated, the problem that the sound damping sheet of the friction sheet assembly is not subjected to the bonding durability test is solved, and the product development and verification are more sufficient.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic flow chart of a test method for bonding durability of a brake pad sound damping sheet according to the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the direction or positional relationship indicated with respect to the description of the orientation, such as up, down, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, plural means two or more. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
The embodiment of the invention relates to a bonding durability bench test system for a brake pad sound damping sheet, which comprises an acquisition module and a brake test module.
The braking test module of the embodiment comprises a braking inertia dynamometer, wherein a braking caliper assembly is arranged on the braking inertia dynamometer, and during test, a friction plate assembly with a silencing plate is arranged on the braking caliper assembly, and the braking of a braking disc is realized by driving the friction plate through the braking caliper assembly.
The braking inertia dynamometer can control the initial temperature, the initial braking speed, the final braking speed and the braking pressure of the braking disc to carry out braking tests according to actual test requirements, and correspondingly, the braking inertia dynamometer of the embodiment comprises a temperature sensor, a speed sensor and a pressure sensor, wherein the pressure sensor is used for detecting braking hydraulic pressure in a braking caliper assembly, the temperature sensor is used for detecting the temperature of the braking disc, and the speed sensor is used for detecting the speed of the braking disc.
The acquisition module of this embodiment is used for recording the condition that the sound-deadening sheet is bonded on the friction disc assembly in order to obtain sound-deadening sheet bonding initial state, sound-deadening sheet bonding test state, and wherein this embodiment realizes the record to the condition that the sound-deadening sheet is bonded on the friction disc assembly through taking a picture, and correspondingly, acquisition module is including the camera, shoots the condition that the sound-deadening sheet is bonded on the friction disc assembly through the camera to upload the photo of taking to the host computer, realize through the host computer to the sound-deadening sheet bonding test state with the sound-deadening sheet bonds the comparison between initial state, in order to carry out accurate evaluation to the bonding durability of sound-deadening sheet in the friction disc assembly.
The invention also discloses a test method of the bonding durability bench of the brake pad sound damping sheet, which comprises the following steps:
recording the bonding condition of the silencing sheet on the friction sheet assembly to obtain an initial bonding state of the silencing sheet;
the friction plate assembly with the silencing plate is installed;
Controlling the initial temperature, the initial braking speed, the final braking speed and the braking pressure of the brake disc to carry out a braking test and simultaneously recording the bonding condition of the silencing sheets on the friction sheet assembly to obtain a bonding test state of the silencing sheets;
and comparing the bonding test state of the sound damping sheet with the bonding initial state of the sound damping sheet.
In order to improve the accuracy of the test, the friction plate assembly with the silencing plate is installed at a position consistent with the installation position of the whole vehicle, so that the friction plate can brake under the working condition of simulating a real vehicle.
In addition, before a brake test is performed, test inertia under the full-load mass of the vehicle needs to be confirmed so as to simulate the normal running working condition of the whole vehicle, test the brake disc under the normal vehicle use state, and test accuracy is improved.
In a braking test, the embodiment controls the initial braking speed, the final braking speed and the braking pressure in different initial temperatures to circularly brake for a plurality of times, and records the bonding condition of the silencing sheets on the friction sheet assembly, wherein the different initial temperatures correspond to the temperature environments of the vehicle under different working conditions.
The method comprises the steps of controlling the initial temperature of a brake disc to gradually increase, wherein when the initial temperature of the brake disc is at a low value, the vehicle is simulated to run in a low-temperature environment; when the initial temperature of the brake disc is in the median value, simulating the vehicle to run in a medium-temperature environment; when the initial temperature of the brake disc is at a high value, the vehicle is simulated to operate in a high temperature environment.
And, according to different actual temperature environments, the increment of the initial temperature of the benzenesulfonic acid strength control brake disc is kept at a preset amplitude value, the preset amplitude value of the embodiment is set to 60 ℃ and 50 ℃, and other embodiments can be set.
In the embodiment, the actual braking conditions under different vehicle speeds are simulated by controlling the initial braking speed, the final braking speed and the braking pressure in the temperature environments of different working conditions.
According to the embodiment, the control system sequentially reduces the initial braking speed and the final braking speed in each cycle braking for multiple times, so that the braking working conditions of the vehicle in high speed, medium speed and low speed can be simulated, and further each cycle braking comprises high speed, medium speed and low speed braking, and the actual braking condition of the friction plate is truly embodied.
In the embodiment, in different initial brake temperatures, after repeated cyclic braking is performed, the bonding condition of the silencing sheets on the friction sheet assembly is recorded, and in different initial brake temperatures, the bonding condition of the corresponding silencing sheets is recorded, namely, the bonding test state of the corresponding silencing sheets is obtained.
Meanwhile, the embodiment controls the initial braking speed and the final braking speed to be kept at preset difference values in each test braking, so that the actual working condition of the vehicle can be accurately simulated, the preset difference values in the embodiment are set to be 60km/h, and other embodiments can be set.
While the present embodiment controls the brake pressure to be maintained at a preset pressure value in each cycle of braking, the brake pressure of the present embodiment is 20bar, and other values may be set in other embodiments.
In this embodiment, the camera is used to photograph the bonding position of the silencing sheet on the friction sheet assembly, so as to record the bonding state of the silencing sheet.
The embodiment provides a specific test method for bonding durability of a brake pad sound damping sheet, which specifically comprises the following steps:
s1, confirming the bonding condition of the silencing sheet on the friction sheet assembly in a photographing mode so as to obtain an initial bonding state of the silencing sheet;
S2, on the braking inertia dynamometer, a braking caliper assembly provided with a friction plate assembly with a silencing plate is arranged at a position consistent with the installation position of the whole vehicle, and the test inertia is set as the inertia of the vehicle under the full load mass;
S3: the initial temperature of the brake disc during each braking is controlled to be 40 ℃;
S4: lifting the initial braking speed to 100km/h, braking with a braking pressure of 20bar, and decelerating to 40km/h;
s5: lifting the initial braking speed to 90km/h, braking with a braking pressure of 20bar, and decelerating to 30km/h;
s6: lifting the initial braking speed to 80km/h, braking with a braking pressure of 20bar, and decelerating to 20km/h;
s7: lifting the initial braking speed to 70km/h, braking with a braking pressure of 20bar, and decelerating to 10km/h;
S8: lifting the initial braking speed to 60km/h, braking with a braking pressure of 20bar, and decelerating to 0km/h;
S9: repeating the steps S4-S8 for 10 times;
s10: disassembling the friction plate assembly to confirm the bonding condition of the sound-deadening plate, photographing to obtain the bonding test state of the sound-deadening plate, and then installing the sound-deadening plate back into the brake caliper assembly;
s11: the initial temperature of the brake disc during each braking is controlled to be 100 ℃;
s12: executing according to the steps S9-S10;
s13: the initial temperature of the brake disc during each braking is controlled to be 150 ℃;
s14: executing according to the steps S9-S10;
s15: the initial temperature of the brake disc during each braking is controlled to be 200 ℃;
s16: executing according to the steps S9-S10;
s17: the initial temperature of the brake disc during each braking is controlled to be 250 ℃;
s18: executing according to the steps S9-S10;
S19: the steps S3-S18 are 1 cycle, and 5 cycles are performed.
And after the bonding test state of each sound-deadening sheet is obtained, comparing and checking with the bonding initial state of the sound-deadening sheet.
The invention can evaluate the bonding durability of the silencing sheet in the friction sheet assembly, solves the problem that the silencing sheet for the friction sheet assembly has no bonding durability test method, and ensures that the development and verification of products are more sufficient.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (10)
1. A brake pad sound damping sheet bonding durability bench test method, comprising:
recording the bonding condition of the silencing sheet on the friction sheet assembly to obtain an initial bonding state of the silencing sheet;
the friction plate assembly with the silencing plate is installed;
Controlling the initial temperature, the initial braking speed, the final braking speed and the braking pressure of the brake disc to carry out a braking test and simultaneously recording the bonding condition of the silencing sheets on the friction sheet assembly to obtain a bonding test state of the silencing sheets;
and comparing the bonding test state of the sound damping sheet with the bonding initial state of the sound damping sheet.
2. The brake pad sound damping patch bonding durability bench test method according to claim 1, wherein:
The initial temperature, the initial braking speed, the final braking speed and the braking pressure of the control brake disc are used for performing a braking test, and meanwhile, the condition of bonding the silencing sheets on the friction sheet assembly is recorded to obtain a bonding test state of the silencing sheets, wherein the method comprises the following steps:
And controlling the initial braking speed, the final braking speed and the braking pressure in different initial temperatures to circularly brake for a plurality of times, and recording the bonding condition of the silencing sheets on the friction sheet assembly.
3. The brake pad sound damping patch bonding durability bench test method according to claim 2, wherein:
The initial temperature, the initial braking speed, the final braking speed and the braking pressure of the control brake disc are used for performing a braking test, and meanwhile, the condition of bonding the silencing sheets on the friction sheet assembly is recorded to obtain a bonding test state of the silencing sheets, and the method further comprises the following steps:
the initial temperature of the brake disc is controlled to gradually increase.
4. The brake pad sound damping sheet bonding durability bench test method according to claim 3, wherein:
the incremental amplitude of the initial temperature of the control brake disc is maintained at a preset amplitude value.
5. The brake pad sound damping patch bonding durability bench test method according to claim 2, wherein:
The initial temperature, the initial braking speed, the final braking speed and the braking pressure of the control brake disc are used for performing a braking test, and meanwhile, the condition of bonding the silencing sheets on the friction sheet assembly is recorded to obtain a bonding test state of the silencing sheets, and the method further comprises the following steps:
And controlling the initial braking speed and the final braking speed in each cycle braking to decrease in sequence for multiple times of test braking.
6. The brake pad sound damping patch bonding durability bench test method according to claim 5, wherein:
The initial temperature, the initial braking speed, the final braking speed and the braking pressure of the control brake disc are used for performing a braking test, and meanwhile, the condition of bonding the silencing sheets on the friction sheet assembly is recorded to obtain a bonding test state of the silencing sheets, and the method further comprises the following steps:
and controlling the initial braking speed and the final braking speed in each test braking to be kept at a preset difference value.
7. The brake pad sound damping patch bonding durability bench test method according to claim 2, wherein:
The initial temperature, the initial braking speed, the final braking speed and the braking pressure of the control brake disc are used for performing a braking test, and meanwhile, the condition of bonding the silencing sheets on the friction sheet assembly is recorded to obtain a bonding test state of the silencing sheets, and the method further comprises the following steps:
the brake pressure controlled in each cycle of braking is controlled to be maintained at a preset pressure value.
8. The brake pad sound damping patch bonding durability bench test method according to claim 1, wherein:
the condition of the last amortization piece bonding of record friction disc assembly includes: and recording the bonding condition of the silencing sheet on the friction sheet assembly in a photographing mode.
9. The brake pad sound damping patch bonding durability bench test method according to claim 2, wherein:
the friction plate assembly with the silencing plate is arranged on a braking test stand and comprises:
The friction plate assembly with the sound deadening plate is mounted at a position consistent with the mounting position of the whole vehicle, and the test inertia at the full load mass of the vehicle is confirmed.
10. A brake pad sound damping patch bond durability bench test system, comprising:
the collecting module is used for recording the bonding condition of the silencing sheets on the friction sheet assembly to obtain an initial bonding state of the silencing sheets and a bonding test state of the silencing sheets;
The brake test module is used for installing a friction plate assembly with a silencing plate; and controlling the initial temperature, the initial braking speed, the final braking speed and the braking pressure of the brake disc to carry out a braking test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410007250.1A CN117969057A (en) | 2024-01-03 | 2024-01-03 | Bench test method and system for bonding durability of brake pad sound damping sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410007250.1A CN117969057A (en) | 2024-01-03 | 2024-01-03 | Bench test method and system for bonding durability of brake pad sound damping sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117969057A true CN117969057A (en) | 2024-05-03 |
Family
ID=90858705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410007250.1A Pending CN117969057A (en) | 2024-01-03 | 2024-01-03 | Bench test method and system for bonding durability of brake pad sound damping sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117969057A (en) |
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2024
- 2024-01-03 CN CN202410007250.1A patent/CN117969057A/en active Pending
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