CN111220392B - Test system and test method for automobile brake feeling test - Google Patents
Test system and test method for automobile brake feeling test Download PDFInfo
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- CN111220392B CN111220392B CN202010059223.0A CN202010059223A CN111220392B CN 111220392 B CN111220392 B CN 111220392B CN 202010059223 A CN202010059223 A CN 202010059223A CN 111220392 B CN111220392 B CN 111220392B
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention provides a test system for an automobile brake feeling test, and belongs to the technical field of automobile brake simulation tests. The test system solves the problem that the test of the existing test system for the automobile brake is inaccurate. The invention discloses a test system for an automobile braking feeling test, which comprises a braking plate, a seat support, a collector, a connecting shaft, a displacement sensor, a wire outlet pipe, a wire pull wire, a wire outlet head, a grabbing component, a connecting component, a pedal dynamometer, a front pressure sensor, a rear pressure sensor and a vacuum sensor. According to the invention, the feeling of the brake plate, namely the stress condition of the brake plate, during the braking of the automobile is tested according to the air pressure value in the hose of the vacuum booster, the pressure value in the front brake pipeline, the pressure in the rear brake pipeline, the length value of the displacement sensor moved by the pull wire and the external force value acting on the pedal dynamometer, which are displayed on the display screen, so that the condition of the automobile during the braking is accurately simulated.
Description
Technical Field
The invention belongs to the technical field of automobile brake simulation tests, and relates to a test system and a test method for an automobile brake feeling test.
Background
Along with the continuous development of the automobile manufacturing industry, the quality requirements of consumers in various countries on vehicles are increasing, and at the moment, the braking performance which is the most important braking performance in the vehicle safety performance is put on a more important position. The braking system in the market is of a type of five-door and eight-door, braking parts with different model parameters are matched and assembled together to form a set of braking system, the purpose of automobile design and manufacture is to provide a travel tool for consumers, and obviously, the feeling of the consumers, namely drivers, is an important index for judging the quality of the braking system on the premise of meeting the requirement of emergency braking. Today, as automobile technology develops rapidly, requirements for automobiles are not only reflected on operability, stability, safety and the like, and consumers pay more and more attention to comfort of automobiles. The automobile brake can generate vibration, shake and scream, which are important indexes influencing the comfort of automobile driving, so that the design and the improvement of a set of testing device suitable for brakes of various automobile types are particularly important.
Disclosure of Invention
The invention aims to provide a high-accuracy testing system and a high-accuracy testing method for an automobile brake feeling test, aiming at the problems in the prior art.
The purpose of the invention can be realized by the following technical scheme: a test system for a vehicle braking feel test, comprising:
the brake device comprises a brake plate, a seat support and a collector, and is characterized in that the seat support is provided with a connecting shaft, the connecting shaft is detachably connected with a displacement sensor electrically connected with the collector, the displacement sensor is provided with a wire outlet pipe, a pull wire is arranged in the displacement sensor and penetrates through the wire outlet pipe, one end of the pull wire is provided with a wire outlet head, the brake plate is detachably connected with a grabbing assembly used for installing the wire outlet head, the connecting shaft is detachably connected with a connecting assembly used for enabling the wire outlet pipe and the wire outlet head to be located on the same horizontal plane, the brake plate is provided with a pedal dynamometer electrically connected with the collector, and the collector is also electrically connected with a detection mechanism; the seat support is provided with an upper pressing plate and a lower pressing plate which are used for connecting the connecting shaft, and the upper pressing plate and the lower pressing plate are detachably connected.
In the above-mentioned test system of car braking feel test, coupling assembling includes connecting plate and backup pad, the backup pad can be dismantled with the connecting plate and be connected, the connecting axle passes between connecting plate and the backup pad.
In the above test system for the automobile braking feeling test, the support plate is provided with an extension plate for connecting the displacement sensor, the extension plate is provided with at least two movable holes, the displacement sensor is provided with fixed holes corresponding to the movable holes, and the cross-sectional area of the movable holes is larger than that of the fixed holes.
In the above test system for the automobile braking feeling test, the detection mechanism includes a front pressure sensor, a rear pressure sensor and a vacuum sensor.
In the test system for the automobile braking feeling test, the grabbing component comprises an upper claw which is used for clamping one side of the braking plate and a lower claw which is used for clamping the other side of the braking plate, and a fastening bolt which is used for connecting the upper claw is arranged in the lower claw in a penetrating mode.
In the above test system for the automobile braking feeling test, the upper jaw is provided with an adjusting rod for movably penetrating the wire outlet head.
A test method of a test system for an automobile braking feeling test comprises the following steps:
s1: installing the outlet head on the grabbing component, and clamping and fixing the grabbing component on the brake plate;
s2: mounting a displacement sensor on a connecting shaft through a connecting assembly, and rotating the connecting assembly by taking the connecting shaft as a center so that a plane where a wire outlet pipe is located and a plane where a wire outlet head is located are located on the same horizontal plane;
s3: connecting a front pressure sensor with a front brake pipeline of an automobile, connecting a rear pressure sensor with a rear brake pipeline of the automobile, and connecting a vacuum sensor with a vacuum booster hose of the automobile;
s4: applying an external force on the pedal dynamometer, and reading the magnitude of the external force applied on the pedal dynamometer by the collector; meanwhile, the collector collects data on the vacuum sensor, the front pressure sensor, the rear pressure sensor and the displacement sensor; and then, the collector displays the air pressure value in the hose of the vacuum booster, the pressure value in the front brake pipeline, the pressure in the rear brake pipeline, the length value of the displacement sensor moved by the pull wire and the external force value acting on the pedal dynamometer, so that the feeling of treading the brake plate is simulated when the automobile is braked.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the feeling of stepping on the brake plate, namely the stress condition of the brake plate, is simulated during the braking of the automobile according to the air pressure value in the hose of the vacuum booster, the pressure value in the front brake pipeline, the pressure in the rear brake pipeline, the length value of the displacement sensor moved by the pull wire and the external force value acting on the pedal dynamometer, which are displayed on the display screen, so that the condition of the automobile during the braking is accurately simulated.
2. Through the arrangement of the connecting assembly, the stay wire can be pulled out from the wire outlet pipe of the displacement sensor in a straight line mode in the braking process of the brake plate, namely, the stay wire can be stably pulled out from the wire outlet pipe.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention.
Fig. 2 is a combination view of the displacement sensor, the connecting assembly, and the connecting shaft.
Fig. 3 is a combination view of the brake plate and the grasping assembly.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 3, the testing system for the automobile braking feeling test of the present invention includes a braking plate 100, a seat support 200, a collector 300, a connecting shaft 210, a displacement sensor 220, a wire outlet pipe 221, a wire pull 222, a wire outlet head 223, a grasping assembly 400, a connecting assembly 500, a pedal force meter 110, a front pressure sensor 310, a rear pressure sensor 320, and a vacuum sensor 330.
In the present invention, the displacement sensor 220 is preferably a wire 222 type displacement sensor 220, and further, the displacement amount of the brake plate 100 moving downward is measured by moving the wire 222 out of the wire 222 type displacement sensor 220.
The test system comprises a brake plate 100, a seat support 200 and a collector 300, wherein the seat support 200 is provided with a connecting shaft 210, the connecting shaft 210 is detachably connected with a displacement sensor 220 electrically connected with the collector 300, the displacement sensor 220 is provided with a wire outlet pipe 221, the displacement sensor 220 is internally provided with a pull wire 222, the pull wire 222 penetrates through the wire outlet pipe 221, one end of the pull wire 222 is provided with a wire outlet head 223, the brake plate 100 is detachably connected with a grabbing assembly 400 for installing the wire outlet head 223, the connecting shaft 210 is detachably connected with a connecting assembly 500 which enables the wire outlet pipe 221 and the wire outlet head 223 to be positioned on the same horizontal plane, the brake plate 100 is provided with a pedal dynamometer 110 electrically connected with the collector 300, the collector 300 is also electrically connected with a detection mechanism 600, the detection mechanism 600 comprises a front pressure sensor 310, a rear pressure sensor 320 and a vacuum sensor 330, and people install the displacement sensor 220 in the detection system, people need to install the wire outlet head 223 on the grabbing component 400, fix the grabbing component 400 on the braking plate 100 in a clamping manner, install the displacement sensor 220 on the connecting shaft 210 through the connecting component 500, rotate the connecting component 500 with the connecting shaft 210 as the center, so that the plane of the wire outlet pipe 221 and the plane of the wire outlet head 223 are on the same horizontal plane, then connect the front pressure sensor 310 with the front brake pipeline (not labeled in the figure) of the automobile, connect the rear pressure sensor 320 with the rear brake pipeline (not labeled in the figure) of the automobile, and connect the vacuum sensor 330 with the vacuum booster hose (not labeled in the figure) of the automobile, during the test, people need to apply an external force on the pedal dynamometer 110, and the pedal dynamometer 110 is electrically connected to the collector 300, so that the collector 300 reads the magnitude of the external force applied on the pedal dynamometer 110, because the pedal dynamometer 110 is fixedly connected to the braking plate 100, therefore, the stability of the applied external force can be ensured, and meanwhile, the external force of people on the brake plate 100 can meet the force application requirement of the test; the vacuum sensor 330 detects the air pressure change in the vacuum booster hose at any moment and converts the air pressure change into an electric signal to be transmitted to the collector 300, the front pressure sensor 310 detects the pressure change in the front brake pipe and converts the pressure change into an electric signal to be transmitted to the collector 300, the rear pressure sensor 320 detects the pressure change in the rear brake pipe and converts the pressure change into an electric signal to be transmitted to the collector 300, and the collector 300 is provided with the display screen 340, so that people can move the length value of the displacement sensor 220 and the external force value acting on the pedal dynamometer 110 according to the air pressure value in the vacuum booster hose, the pressure value in the front brake pipe, the pressure in the rear brake pipe, the pull wire 222, and the external force value, so that the feeling of the brake plate 100, namely the stress condition of the brake plate 100 is tested when the automobile is braked.
The connecting assembly 500 includes a connecting plate 510 and a supporting plate 520, the supporting plate 520 is detachably connected to the connecting plate 510, the connecting shaft 210 passes through a space between the connecting plate 510 and the supporting plate 520, the supporting plate 520 is provided with an extension plate 530 for connecting the displacement sensor 220, the extension plate 530 is provided with at least two movable holes 531, the displacement sensor 220 is provided with a fixed hole 224 corresponding to the movable hole 531, when in installation, people need to connect the fixed hole 224 and the corresponding movable hole 531 together by screw thread, but the fixed hole 224 and the movable hole 531 are not tightly connected, because the cross-sectional area of the movable hole 531 is larger than that of the fixed hole 224, the displacement sensor 220 can move relative to the extension plate 530, thereafter, according to requirements, the proper installation position of the connecting assembly 500 on the connecting shaft 210 is selected, then the connecting plate 510 is connected to the supporting plate 520 by screw thread, and then the connecting shaft 210 passes through a space between the connecting plate 510 and the supporting plate 520, so that the wire outlet head 223, the wire 222, the wire outlet pipe 221 and the displacement sensor 220 are located on the same vertical plane, and in the process that the connection assembly 500 is installed on the connection shaft 210, the support plate 520 is rotated by taking the connection shaft 210 as a center, and the displacement sensor 220 is moved relative to the extension plate 530, so that the wire outlet head 223, the wire outlet 222 and the wire outlet pipe 221 are located on the same straight line, and then the fixing hole 224 and the movable hole 531 are fastened and connected together by the screw thread, so that the wire 222 can be pulled out from the wire outlet pipe 221 of the displacement sensor 220 in a straight line in the braking process of the braking plate 100, that is, the wire outlet pipe 221 can be stably pulled out from the wire outlet pipe 221.
The grabbing assembly 400 comprises an upper jaw 410 for grabbing one side of the brake plate 100 and a lower jaw 420 for grabbing the other side of the brake plate 100, a fastening bolt 430 for connecting the upper jaw 410 is arranged in the lower jaw 420 in a penetrating manner, an adjusting rod 411 for movably penetrating through a wire outlet head 223 is arranged on the upper jaw 410, and when people adjust the wire outlet head 223, a pull wire 222 and a wire outlet pipe 221 to be positioned on the same straight line, people need to firstly grab one side of the brake plate 100 by the upper jaw 410 and grab the other side of the brake plate 100 by the lower jaw 420, then the fastening bolt 430 penetrates through the lower jaw 420 and is screwed with the upper jaw 410, so that the upper jaw 410 and the lower jaw 420 can be clamped at the corners of the brake plate 100, the grabbing assembly 400 is prevented from influencing the use of the pedal force meter 110, and then the adjusting rod 411 penetrates through the wire outlet head 223, and the wire outlet head 223 can rotate 360 degrees by taking the adjusting rod 411 as a center, then, the displacement sensor 220 is mounted on the connecting shaft 210 through the connecting assembly 500, so that the wire outlet head 223, the wire 222, the wire outlet pipe 221 and the displacement sensor 220 are all located on the same vertical plane, and thereafter, in the process of rotating the supporting plate 520 around the connecting shaft 210 and moving the displacement sensor 220 relative to the extension plate 530, the wire outlet head 223 rotates along with the swinging of the wire 222, thereby ensuring that the wire outlet head 223, the wire 222 and the wire outlet pipe 221 are located on the same straight line.
The seat support 200 is provided with an upper pressing plate 230 and a lower pressing plate 240 for connecting the connecting shaft 210, the upper pressing plate 230 and the lower pressing plate 240 are detachably connected, and in the installation process, people need to connect the upper pressing plate 230 and the lower pressing plate 240 together by screw threads, and pass the connecting shaft 210 between the upper pressing plate 230 and the lower pressing plate 240 to ensure that the connecting shaft 210 can be clamped by the upper pressing plate 230 and the lower pressing plate 240.
The invention discloses a test method of a test system for an automobile brake feeling test, which comprises the following steps:
s1: installing the outlet head on the grabbing component, and clamping and fixing the grabbing component on the brake plate;
s2: mounting a displacement sensor on a connecting shaft through a connecting assembly, and rotating the connecting assembly by taking the connecting shaft as a center so that a plane where a wire outlet pipe is located and a plane where a wire outlet head is located are located on the same horizontal plane;
s3: connecting a front pressure sensor with a front brake pipeline of an automobile, connecting a rear pressure sensor with a rear brake pipeline of the automobile, and connecting a vacuum sensor with a vacuum booster hose of the automobile; the front pressure sensor, the rear pressure sensor, the vacuum sensor, the displacement sensor and the pedal force meter are electrically connected with the collector;
s4: applying an external force on the pedal dynamometer, and reading the magnitude of the external force applied on the pedal dynamometer by the collector; meanwhile, the collector collects data on the vacuum sensor, the front pressure sensor, the rear pressure sensor and the displacement sensor; and then, the collector displays the air pressure value in the hose of the vacuum booster, the pressure value in the front brake pipeline, the pressure in the rear brake pipeline, the length value of the displacement sensor moved by the pull wire and the external force value acting on the pedal dynamometer, so that the feeling of treading the brake plate is simulated when the automobile is braked.
Through the test method, people can know the stress condition of the brake plate, and the condition of the automobile during braking can be accurately simulated.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (6)
1. A test system for a vehicle braking feel test, comprising: the brake plate, the seat support and the collector are characterized in that a connecting shaft is arranged on the seat support, a displacement sensor electrically connected with the collector is detachably connected onto the connecting shaft, a wire outlet pipe is arranged on the displacement sensor, a pull wire is arranged in the displacement sensor and penetrates through the wire outlet pipe, a wire outlet head is arranged at one end of the pull wire, a grabbing assembly used for installing the wire outlet head is detachably connected onto the brake plate, a connecting assembly enabling the wire outlet pipe and the wire outlet head to be located on the same horizontal plane is detachably connected onto the connecting shaft, the connecting assembly comprises a connecting plate and a supporting plate, the supporting plate is detachably connected with the connecting plate, and the connecting shaft penetrates between the connecting plate and the supporting plate; the brake plate is provided with a pedal dynamometer which is electrically connected with the collector, and the collector is also electrically connected with a detection mechanism; the seat support is provided with an upper pressing plate and a lower pressing plate which are used for connecting the connecting shaft, and the upper pressing plate and the lower pressing plate are detachably connected.
2. The system of claim 1, wherein the supporting plate is provided with an extension plate for connecting the displacement sensor, the extension plate is provided with at least two movable holes, the displacement sensor is provided with a fixed hole corresponding to the movable hole, and the cross-sectional area of the movable hole is larger than that of the fixed hole.
3. The system of claim 1, wherein the detection mechanism comprises a front pressure sensor, a rear pressure sensor and a vacuum sensor.
4. The system for testing the brake feeling of the automobile according to claim 1, wherein the grabbing component comprises an upper claw which is used for clamping one side of the brake plate and a lower claw which is used for clamping the other side of the brake plate, and a fastening bolt for connecting the upper claws penetrates through the lower claw.
5. The system of claim 4, wherein the upper jaw is provided with an adjusting rod for movably passing through the outlet.
6. A method of testing the test system for the braking feeling test of the vehicle according to any one of claims 1 to 5, comprising:
s1: installing the outlet head on the grabbing component, and clamping and fixing the grabbing component on the brake plate;
s2: mounting a displacement sensor on a connecting shaft through a connecting assembly, and rotating the connecting assembly by taking the connecting shaft as a center so that a plane where a wire outlet pipe is located and a plane where a wire outlet head is located are located on the same horizontal plane;
s3: connecting a front pressure sensor with a front brake pipeline of an automobile, connecting a rear pressure sensor with a rear brake pipeline of the automobile, and connecting a vacuum sensor with a vacuum booster hose of the automobile;
s4: applying an external force on the pedal dynamometer, and reading the magnitude of the external force applied on the pedal dynamometer by the collector; meanwhile, the collector collects data on the vacuum sensor, the front pressure sensor, the rear pressure sensor and the displacement sensor; and then, the collector displays the air pressure value in the hose of the vacuum booster, the pressure value in the front brake pipeline, the pressure value in the rear brake pipeline, the length value of the pull wire moving out of the displacement sensor and the external force value acting on the pedal dynamometer, so that the feeling of treading the brake plate is simulated when the automobile is braked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010059223.0A CN111220392B (en) | 2020-01-19 | 2020-01-19 | Test system and test method for automobile brake feeling test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010059223.0A CN111220392B (en) | 2020-01-19 | 2020-01-19 | Test system and test method for automobile brake feeling test |
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| Publication Number | Publication Date |
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| CN111220392A CN111220392A (en) | 2020-06-02 |
| CN111220392B true CN111220392B (en) | 2021-10-01 |
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| CN202010059223.0A Active CN111220392B (en) | 2020-01-19 | 2020-01-19 | Test system and test method for automobile brake feeling test |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111750157B (en) * | 2020-07-06 | 2021-11-02 | 中汽研汽车检验中心(宁波)有限公司 | Pneumatic manual and electric adjusting device for adhesion coefficient utilization rate test |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202119627U (en) * | 2011-03-21 | 2012-01-18 | 中国汽车技术研究中心 | Brake integration detection system platform used for finished automobile road test |
| CN103017719B (en) * | 2012-12-07 | 2015-04-29 | 奇瑞汽车股份有限公司 | Measuring instrument for pedal motion trails |
| CN103018053B (en) * | 2012-12-07 | 2015-08-12 | 奇瑞汽车股份有限公司 | Pedal travel parameter measurement instrument fixture |
| CN103895634B (en) * | 2014-04-16 | 2015-07-15 | 吉林大学 | Hydraulic device for automobile braking energy recovery |
| US9707950B2 (en) * | 2014-05-16 | 2017-07-18 | Bayerische Motoren Werke Aktiengesellschaft | System and method for measurement and evaluation of brake pedal performance |
| CN205026015U (en) * | 2015-09-16 | 2016-02-10 | 北京汽车研究总院有限公司 | Fixing device and testing system act as go -between |
| KR102353022B1 (en) * | 2017-05-17 | 2022-01-20 | 주식회사 만도 | Electric brake system |
| CN107421678B (en) * | 2017-06-06 | 2023-08-04 | 安徽农业大学 | Device and method for measuring braking force of wheel |
| CN107576514A (en) * | 2017-10-20 | 2018-01-12 | 上海同驭汽车科技有限公司 | A kind of automobile brake sensory test instrument |
| CN107817114A (en) * | 2017-11-17 | 2018-03-20 | 浙江吉利汽车研究院有限公司 | A kind of stay wire displacement sensor support and displacement sensing apparatus |
| CN209079873U (en) * | 2018-11-05 | 2019-07-09 | 聊城大学 | A kind of brake gear that tractor speed automatically controls |
| CN209857809U (en) * | 2019-03-25 | 2019-12-27 | 中国第一汽车股份有限公司 | Displacement sensor fixing device for measuring travel of automobile pedal |
| CN110231178A (en) * | 2019-06-10 | 2019-09-13 | 北京汽车集团越野车有限公司 | A kind of test device of brake pedal feel |
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