CN112557067A - Test apparatus and test method - Google Patents
Test apparatus and test method Download PDFInfo
- Publication number
- CN112557067A CN112557067A CN202011408934.0A CN202011408934A CN112557067A CN 112557067 A CN112557067 A CN 112557067A CN 202011408934 A CN202011408934 A CN 202011408934A CN 112557067 A CN112557067 A CN 112557067A
- Authority
- CN
- China
- Prior art keywords
- wheel
- suspension
- test
- slide
- loading device
- 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
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
- G01M17/04—Suspension or damping
-
- 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
- G01M17/0078—Shock-testing of vehicles
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The embodiment of the application discloses a test device and a test method. The test equipment is used for testing the suspension of a vehicle and comprises a support, a loading device and an obstacle simulation device. The loading device is arranged on the bracket and is used for connecting the suspension, a wheel is arranged on the suspension, and the loading device is used for applying load to the wheel through the suspension; the obstacle simulating device comprises a flat plate and a sliding block, wherein the sliding block is slidably arranged on the flat plate, the flat plate is used for supporting the wheel, and the sliding block is used for sliding towards the wheel on the flat plate to collide with the wheel. The test equipment of this application embodiment pass through loading device to the wheel loading to through the slider to the wheel collision, can simulate the scene that the vehicle collided with the barrier at the in-process that traveles effectively, thereby detect the operating mode of suspension, prevent to strike the roadblock when the vehicle travel the process in real environment, defects such as suspension breaks down have reduced the safety risk.
Description
Technical Field
The invention relates to the field of automobiles, in particular to a test device and a test method.
Background
During the running of the automobile, the road block may be impacted due to misoperation or other reasons, and further, the parts on the suspension may generate defects such as initial cracks and the like. During the continuous use of the vehicle, the crack can extend and cause the part to fail, so that the safety hazard exists. Therefore, in the early stage of research and development, how to perform relevant tests on the suspension to prevent the suspension from impacting roadblocks in the driving process of the vehicle to cause faults and other defects becomes a technical problem to be solved urgently.
Disclosure of Invention
The embodiment of the application provides a test device and a test method.
The test equipment provided by the embodiment of the invention is used for testing the suspension of a vehicle, and comprises a bracket, a loading device and an obstacle simulation device; the loading device is arranged on the bracket, is used for connecting the suspension, is provided with a wheel, and is used for applying load to the wheel through the suspension; the obstacle simulation device comprises a flat plate and a sliding block which is slidably arranged on the flat plate, wherein the flat plate is used for supporting the wheel, and the sliding block is used for sliding towards the wheel on the flat plate to collide with the wheel.
The test equipment of this application embodiment pass through loading device to the wheel loading to through the slider to the wheel collision, can simulate the scene that the vehicle collided with the barrier at the in-process that traveles effectively, thereby detect the operating mode of suspension, prevent to strike the roadblock when the vehicle travel the process in real environment, defects such as suspension breaks down have reduced the safety risk.
In some embodiments, the bracket includes a first upright and a cross-member, the cross-member being mounted on the first upright, the loading device being mounted on the cross-member, the loading device being configured to apply a downward load to the wheel.
In some embodiments, the loading device includes an actuator and a mount, the mounting device is connected to the actuator, the actuator is mounted on the bracket, the mount is connected to a shock absorber of the suspension, and the actuator is configured to apply the load to the wheel through the mounting device and the shock absorber.
In some embodiments, the actuator and the mounting are connected by a movable articulation member, the mounting being movable relative to the actuator.
In some embodiments, the number of the sliding blocks is multiple, and the included angle between the sliding direction of each sliding block and the traveling direction of the wheel is different
In some embodiments, the plurality of sliders are formed in two sets, the two sets of sliders are spaced apart, and the wheel is disposed between the two sets of sliders.
In some embodiments, the obstacle simulating device includes a guide provided on the flat plate, the guide forming a slide groove in which the slider is slidable.
In some embodiments, the obstacle simulating device includes an elastic member connecting the slider and the guide member.
In some embodiments, the test rig includes a second upright and a subframe simulator disposed on the second upright, the subframe simulator being configured to couple to the suspension.
The embodiment of the application provides a test method, which comprises the following steps:
providing the test device described above;
providing a suspension with a wheel;
mounting the suspension on the bracket with the wheel supported on the plate;
controlling the loading device to apply a load to the wheel;
controlling the sliding block to slide towards the wheel to collide with the wheel.
In some embodiments, when the number of the sliders is plural, an included angle between a sliding direction of each of the sliders and a traveling direction of the wheel is different, and the controlling of the slider to slide toward the wheel to collide against the wheel includes:
and controlling each sliding block to slide towards the wheel so as to collide with the wheel.
In some embodiments, the controlling the slide to slide toward the wheel to impact the wheel includes:
when the wheel flatness ratio is greater than or equal to 50% and less than 60%, controlling the sliding block to slide at a first speed;
and when the wheel flatness ratio is less than 50%, controlling the sliding block to slide at a second speed, wherein the second speed is less than the first speed.
Additional aspects and advantages of the present application 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 present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of a test apparatus according to an embodiment of the present application;
FIG. 2 is a schematic side view of the structure of a test apparatus according to an embodiment of the present application;
FIG. 3 is a schematic plan view of the structure of a test apparatus according to an embodiment of the present application
FIG. 4 is a schematic structural diagram of a loading device according to an embodiment of the present application;
FIG. 5 is a schematic structural view of a suspension according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a scenario of an embodiment of the present application;
fig. 7 is a schematic structural diagram of an obstacle simulation device according to an embodiment of the present application;
FIG. 8 is a schematic flow chart of an assay method according to an embodiment of the present application;
fig. 9 is a schematic flow chart of the test method according to the embodiment of the present application.
Description of the main element symbols:
the test apparatus 10, the bracket 11, the first upright 111, the cross beam 112, the loading device 12, the actuator 121, the mounting seat 122, the movable joint part 123, the obstacle simulator 13, the flat plate 131, the slider 132, the elastic member 133, the guide member 134, the slide groove 135, the subframe simulator 14, the second upright 15, the suspension 20, the shock absorber 21, the wheel 22, and the control arm 23.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1 to 3, a test apparatus 10 according to an embodiment of the present application is used for testing a suspension 20 of a vehicle, and the test apparatus 10 includes a bracket 11, a loading device 12, and an obstacle simulation device 13. The loading device 12 is disposed on the bracket 11. The loading device 12 is used in conjunction with a suspension 20. A wheel 22 is mounted on the suspension 20. The loading device 12 is used to apply a load to the wheel 22 through the suspension 20. The obstacle simulating device 13 includes a flat plate 131 and a slider 132, and the slider 132 is provided on the flat plate 131 and is slidable. The plate 131 is used to support the wheel 22, and the slider 132 is used to slide on the plate 131 toward the wheel 22 to collide against the wheel 22.
Specifically, the suspension 20 may be a torsion beam type suspension, and the loading device 12 is used to apply a load to the wheel 22 through the suspension 20. Of course, in other embodiments, the suspension 20 may be other suspensions, such as macpherson suspension, leaf spring suspension, multi-link suspension, etc., and the proper matching of the suspension 20 is important to the performance criteria of the vehicle, and if the suspension 20 is too soft, it will be detrimental to the stability of the steering system, and if the suspension 20 is too hard, it will be likely to cause fatigue to the driver. Further, in the present embodiment, in order to make the test process easier to operate, one quarter of the suspension 20 may be selected for the test.
The loading device 12 is arranged on the bracket 11 of the test device 10, and the loading device 12 is used for applying load to the suspension 20 and the wheel 22, so that the state of the vehicle in the actual running process can be simulated. Depending on the magnitude of the load applied by the loading device 12, the full load state of the vehicle, the half load state of the vehicle, or the empty load state of the vehicle may be simulated.
The obstacle simulating device 13 includes a flat plate 131 and a slider 132. The plate 131 not only serves as a base of the obstacle simulating device 13 so that the rest of the parts of the obstacle simulating device 13 can be disposed above the plate 131, but the plate 131 can also be used to support the wheel 22 for testing the wheel 22. The sliding block 132 is arranged on the flat plate 131 and can slide, and the sliding block 132 moving in the test process impacts the wheel 22 so as to simulate the scene that the vehicle collides with an obstacle in the running process.
The test equipment 10 of the embodiment of the application is loaded to the wheel 22 through the loading device 12, and collides with the wheel 22 through the sliding block 132, so that a scene that the vehicle collides with an obstacle in the running process can be effectively simulated, the working condition of the suspension 20 is detected, the defects that the vehicle impacts a road block in the running process in a real environment, the suspension 20 breaks down and the like are avoided, and the safety risk is reduced.
In some embodiments, the bracket 11 includes a first upright 111 and a cross-member 112. The cross beam 112 is spanned over the first upright 111, and the loading device 12 is arranged on the cross beam 112. In this way, the loading device 12 can be disposed on the cross beam 112 along the vertical direction, which is beneficial to reducing the width dimension of the structure of the testing apparatus 10, so as to reduce the overall dimension of the testing apparatus 10, and thus reduce the floor area of the testing apparatus 10. The loading device 12 can apply a downward load to the wheels 22, simulating the self-weight of the whole vehicle. Thus, it is also possible to simulate the vehicle in a full load state, a half load state, or an empty state, etc. during actual driving according to the magnitude of the load applied by the loading device 12.
Specifically, as shown in fig. 1, the number of the columns 111 is two, and the two columns 111 are arranged in parallel and spaced apart. One end of the cross beam 112 is disposed on one of the columns 111, and the other end is disposed on the other column 111. The loading device 12 is arranged between the two uprights 111.
Referring to fig. 4 and 5, in some embodiments, the loading device 12 includes an actuator 121 and a mounting seat 122. The mounting seat 122 is connected with the actuator 121, the actuator 121 is mounted on the bracket 11, the mounting seat 122 is connected with the shock absorber 21 of the suspension 20, and the actuator 121 is used for applying load to the wheel 22 through the mounting seat 122 and the shock absorber 21.
Further, the actuator 121 and the mounting seat 122 may be connected together by a movable joint member 123, and the mounting seat 122 may be movable relative to the actuator 121.
Specifically, the actuator 121 may be a liquid actuator or a gas actuator. The actuator 121 is a mechanical device having a working stroke during operation, and the magnitude of the working stroke determines the magnitude of the biasing force that can be applied by the actuator 121. The actuator 121 is mounted on the cross beam 112 of the bracket 11, and the actuator 121 can apply a loading force in the vertical direction.
The actuator 121 is connected with the upper end of the mounting seat 122 through the hinge joint of the movable joint part 123. The movable joint part 123 is also referred to as a ball joint hinge, and the hinge is mainly used for connecting two solid bodies and allowing a mechanical device to rotate relative to the solid bodies. The main material can be zinc alloy, nylon or stainless steel material.
Because the movable joint part 123 is spherical, the movable joint part 123 can also rotate angularly when connecting the actuator 121 and the mounting seat 122, so as to adjust the loading angle of the shock absorber 21. The movable joint part 123 improves the flexibility of the installation position of the actuator 121, so that the first actuator 121 can arrange the installation position according to the limit stroke of the first actuator, the size range of the loading force applied by the actuator 121 is improved, and the test range of the test equipment 10 is further improved.
The shock absorber 21 is used to suppress shock generated when the spring absorbs shock and rebounds and impact from the road surface, and is commonly used in the automobile field to improve the ride comfort of the automobile. The shock absorber 21 is mainly divided into two types of hydraulic and pneumatic in view of the damping material, and a variable damping shock absorber 21 is also provided. The mounting seat 122 has a cavity structure to facilitate connection with the shock absorber 21 of the suspension 20. In this way, the shock absorber 21 of the suspension 20 can be mounted and fixed by the cavity structure of the mounting seat 122.
The upper end of the mounting seat 122 is connected with the actuator 121 through the hinge of the movable joint part 123, and the shock absorber 21 of the suspension 20 is mounted and fixed in the cavity of the mounting device. In this way, the actuator 121 can apply the loading force to the suspension 20, and the angle of the movable joint part 123 can be rotated, so that not only the loading angle of the shock absorber 21 can be adjusted, but also the magnitude of the loading force applied by the actuator 121 can be changed.
Referring to fig. 6, in some embodiments, the number of the sliding blocks 132 is multiple, and the sliding direction of each sliding block 132 is different from the traveling direction of the wheel 22.
Specifically, in the obstacle simulation device, the number of the sliders 132 is plural, and may be 2, 3, 4, 5, 6, and the like, and the number of the sliders 132 is not limited herein. Further, during the impact of the slider 132 on the wheel 22, the sliding direction of the slider 132 is different from the intended traveling direction of the wheel 22, for example, the sliding direction of the slider 132 may be 45 °, 90 °, 145 ° or the like from the traveling direction of the wheel 22. The two sets of sliders 132 are respectively disposed at the front end and the rear end of the wheel 22, taking the traveling direction of the wheel 22 as the positive direction.
Since the moving sliders 132 impact the wheel 22 during the test to simulate the collision of the vehicle with an obstacle during the driving process, the angle between the sliding direction of each slider 132 and the proposed driving direction of the wheel 22 is different, and the larger the number of sliders 132, the more the complex conditions of the vehicle during the actual driving process can be simulated. Therefore, the working condition of the suspension 20 is detected, the defects that the vehicle impacts roadblocks in the running process in a real environment, the suspension 20 breaks down and the like are avoided, and the safety risk is reduced.
Referring again to fig. 3, in some embodiments, the plurality of sliders 132 form two sets, the two sets of sliders 132 are disposed at intervals, and the wheel 22 is disposed between the two sets of sliders 132.
The plurality of sliders 132 are divided into two groups, which are respectively disposed at two ends of the flat plate 131, and each group of sliders 132 is disposed at intervals. The wheel 22 is disposed between the two sets of sliders 132, i.e., is disposed at the center of the plate 131. Thus, two sets of the sliders 132 can simulate different scenes of the vehicle when the vehicle is moving forward and when the vehicle is moving backward.
Referring again to fig. 7, in some embodiments, the obstacle simulating device 13 may include a guide 134 and an elastic member 133. The guide 134 is provided on the plate 131. the guide 134 is formed with a slide groove 135. The slider 132 can slide in the slide groove 135. The elastic member 133 serves to connect the slider 132 and the guide 134.
Since the plate 131 supports the wheel 22, two guides 134 are provided on the plate 131 to mount two sets of the sliders 132, so that the sliders 132 do not move the plate 131 during the relative displacement effect test. The guide 134 is formed with a slide groove 135, and the slider 132 is disposed in the slide groove 135 and can slide in the slide groove 135, so that a scene in which a vehicle collides with an obstacle during actual driving can be effectively simulated, thereby detecting the operating condition of the suspension 20.
Specifically, the elastic member 133 serves to connect the slider 132 and the guide 134. The resilient member 133 is resiliently deformed under load and the resilient member 133 is able to recover its original geometry and shape when the load is removed. In some embodiments, the elastic member 133 may be compressed by the driving device, and the deformation energy may be stored, when the driving device stops compressing the elasticity, the elastic member 133 may have a thrust force to the slider 132 to restore the deformation, and the thrust force may cause the slider 132 to slide in the sliding groove 135 to impact the wheel 22, so that the impact speed of the slider 132 on the wheel 22 may be controlled by changing the magnitude of the compression amount of the elastic member 133 to simulate a situation that the vehicle collides with an obstacle during the driving process at different speeds.
Referring again to fig. 1, in some embodiments, the test apparatus 10 includes a second pillar 15 and a subframe simulator 14, the subframe simulator 14 is disposed on the second pillar 15, and the subframe simulator 14 is used to connect to the suspension 20.
The second pillar 15 has a slide groove 135 structure, the fixing bracket 11 is installed in the slide groove 135 structure, and the subframe simulation device 14 may be installed on the fixing bracket 11 of the second pillar 15, so that the subframe simulation device 14 may be adjusted up and down in the slide groove 135 structure together with the fixing bracket 11. The subframe simulator 14 is connected to the suspension 20 via a control arm 23, wherein the control arm 23 serves as a guide and force transmission element in the suspension 20 system and transmits the force acting on the wheel 22 to the vehicle body while ensuring that the wheel 22 moves in a certain path. In this way, the load applied by the actuator to the wheel 22 can be transmitted to the entire vehicle body by the control arm 23 and ensure that the wheel 22 moves in a certain trajectory.
Referring to fig. 8, an embodiment of the present application provides a testing method, including:
s10: providing the test apparatus 10 described above;
s20: providing a suspension 20 with wheels 22;
s30: mounting the suspension 20 on the bracket 11 with the wheel 22 supported on the plate 131;
s40: controlling the loading device 12 to apply a load to the wheel 22;
s50: the control slider 132 slides toward the wheel 22 to collide with the wheel 22.
Specifically, in step S10, the tester needs to provide the test apparatus 10 described above, and the test apparatus 10 is mainly used for testing the suspension 20 of the vehicle. In some embodiments, the entire test apparatus 10 may be disposed on a relatively stable platform or may be disposed on the ground. The stable platform or floor provides a stable testing environment for the test apparatus 10.
In step S20, the test operator needs to provide a suspension 20 with wheels 22, so that the test process can be easier to operate, and the entire suspension 20 of the vehicle can be omitted, and for example, only one-fourth of the suspensions 20 can be selected for the test.
In step S30, the suspension 20 is connected to the cross member 112 via the mounting seat 122 of the loading device 12, and the suspension 20 is connected to the subframe simulation device 14 via the control arm 23. The wheel 22 is placed on the plate 131 so that the plate 131 provides a smooth test environment.
In step S40, the loading device 12 is controlled to apply a load to the wheels 22 so that the state of the vehicle during actual running can be simulated. Depending on the magnitude of the load applied by the loading device 12, the full load state of the vehicle, the half load state of the vehicle, or the empty load state of the vehicle may be simulated.
In step S50: the control slider 132 slides toward the wheel 22 to collide with the wheel 22. By controlling the speed of movement of the slider 132 and the angle between the sliding direction of the slider 132 and the direction of travel of the wheel 22, the direction of travel of the wheel 22 includes forward and reverse. Therefore, different working conditions that the vehicle meets the obstacle in the actual running process can be simulated.
In the embodiment of the application, the test equipment 10 loads the wheel 22 through the loading device 12, and performs different-angle and different-speed collisions on the wheel 22 through the slider 132, so that a scene that the vehicle collides with an obstacle in the driving process can be effectively simulated, the working condition of the suspension 20 is detected, the defects that the vehicle impacts the obstacle in the driving process in a real environment, the suspension 20 breaks down and the like are avoided, and the safety risk is reduced.
In some embodiments, when the number of the sliders 132 is multiple, and the included angle between the sliding direction of each slider 132 and the traveling direction of the wheel 22 is different, the sliding of the slider 132 toward the wheel 22 to collide with the wheel 22 is controlled, including: each slider 132 is controlled to slide to hit the wheel 22.
Specifically, in the test process, the slider 132 at the rear end of the running direction of the wheel 22 and having an angle of 45 ° with the running direction of the wheel 22 performs 7 times of impact tests on the wheel 22 at a speed of 20 ± 2 km/h; the slider 132, which is at the rear end of the traveling direction of the wheel 22 and forms an angle of 90 degrees with the traveling direction of the wheel 22, performs 5 times of tests on the impact of the wheel 22 at a speed of 20 +/-2 km/h; the slider 132, which is located at the rear end of the traveling direction of the wheel 22 and has an angle of 135 ° with the traveling direction of the wheel 22, performs 7 impact tests on the wheel 22 at a speed of 20 ± 2 km/h.
The slider 132, which is at the front end of the running direction of the wheel 22 and forms an angle of 45 degrees with the running direction of the wheel 22, performs 5 times of impact tests on the wheel 22 at a speed of 40 +/-2 km/h; the slider 132, which is at the rear end of the traveling direction of the wheel 22 and forms an angle of 90 degrees with the traveling direction of the wheel 22, performs 5 times of impact tests on the wheel 22 at a speed of 40 +/-2 km/h; the slider 132, which is located at the rear end of the traveling direction of the wheel 22 and has an angle of 135 ° with the traveling direction of the wheel 22, performs 5 impact tests on the wheel 22 at a speed of 40 ± 2 km/h/h.
See table 1 for details:
table 1:
referring to fig. 9, in some embodiments, the sliding of the control slider 132 toward the wheel 22 to impact the wheel 22 includes:
s51: when the flattening ratio of the tire of the wheel 22 is 50% or more and less than 60%, the control slider 132 slides at the first speed;
s52: when the flat rate of the tire of the vehicle is less than 50%, the control slider 132 slides at the second speed, which is less than the first speed.
The aspect ratio is a parameter of the wheel 22 and is a percentage of the cross-sectional height of the wheel 22 to the maximum cross-sectional width. When the flattening ratio of the wheel 22 is 50% or more and less than 60%, the slider 132 controlling the front end in the vehicle traveling direction advances at a first speed of 35 ± 2km/h to strike the wheel 22; when the flattening ratio of the wheel 22 is less than 50%, the slider 132, which controls the front end in the traveling direction of the vehicle, advances at the second speed of 30 ± 2km/h to hit the wheel 22. The impact test of the slider 132 at the rear end in the vehicle traveling direction is independent of the flattening ratio of the wheel 22. In some embodiments, the test method includes repeating the step of controlling the slider 132 to impact the wheel 22 at a speed a predetermined number of times.
In some embodiments, the slider 132 has a feature of a chamfer R, and the value range of R is: r is more than or equal to 10mm and less than or equal to 15mm, and the R value can be adjusted according to the market statistics of the whole automobile; the height value of the slider 132 is H, and the value range of H is: h is more than or equal to 90mm and less than or equal to 110mm, and the value of H can be adjusted according to the use statistics of the whole automobile market; the width of the slider 132 is W, and the range of W is: w is more than or equal to 80mm and less than or equal to 120mm, and the specific W value can be adjusted according to the use statistics of the whole automobile market.
For example, in a particular test procedure, prior to performing the test, it may be necessary to provide the test rig described above and then provide the suspension 20 with the wheel 22 for testing. The suspension 20 is mounted on the bracket 11, the wheel 22 is supported on the flat plate 131, and the loading device 12 is controlled to apply a load to the wheel 22, so that the full-load state, the half-load state and the no-load state of the vehicle can be simulated according to the magnitude of the load applied by the loading device 12. Controlling the rear end of the driving direction of the wheel 22 and carrying out 7 times of impact tests on the wheel 22 by using a sliding block 132 with an included angle of 45 degrees with the driving direction of the wheel 22, wherein the speed is 20 +/-2 km/h; controlling the rear end of the driving direction of the wheel 22 and carrying out 5 times of tests on the impact of the wheel 22, wherein the sliding block 132 forms an included angle of 90 degrees with the driving direction of the wheel 22, and the speed is 20 +/-2 km/h; the slider 132, which controls the rear end of the traveling direction of the wheel 22 and has an angle of 135 ° with the traveling direction of the wheel 22, performs 7 impact tests on the wheel 22 at a speed of 20 ± 2 km/h.
Controlling the front end of the driving direction of the wheel 22 and carrying out 5 times of impact tests on the wheel 22 at a speed of 40 +/-2 km/h by using a sliding block 132 with an included angle of 45 degrees with the driving direction of the wheel 22; controlling the rear end of the driving direction of the wheel 22 and carrying out 5 times of impact tests on the wheel 22 by using a sliding block 132 with an included angle of 90 degrees with the driving direction of the wheel 22 at the speed of 40 +/-2 km/h/h; the slider 132, which controls the rear end of the traveling direction of the wheel 22 and has an angle of 135 ° with the traveling direction of the wheel 22, performs 5 impact tests on the wheel 22 at a speed of 40 ± 2 km/h/h.
Finally, the state of the suspension 20 and the wheel 22 is checked according to the following assessment criteria: the chassis parts are allowed to deform but not to break, and the functional failure caused by structural deformation is not allowed; the position of the ball head part of the control arm 23 connected with the steering knuckle is not allowed to be separated, and the position of the control arm 23 connected with the auxiliary frame simulation device 14 is not allowed to be separated; the wheel 22 rim is not allowed to crack more than 10 mm. If the suspension 20 and the wheel 22 simultaneously satisfy the above 3 criteria, it can be determined that the suspension 20 and the wheel 22 pass the test, that is, if the states of the suspension 20 and the wheel 22 do not satisfy any of the above conditions, it can be determined that the suspension 20 and the wheel 22 do not pass the test.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. A test rig for testing a suspension of a vehicle, the test rig comprising:
a support;
the loading device is arranged on the bracket and is used for connecting the suspension, a wheel is mounted on the suspension, and the loading device is used for applying a load to the wheel through the suspension;
the obstacle simulation device comprises a flat plate and a sliding block which is arranged on the flat plate in a sliding mode, the flat plate is used for supporting the wheels, and the sliding block is used for sliding on the flat plate towards the wheels to collide with the wheels.
2. The test rig of claim 1, wherein the bracket includes a first upright and a cross-member spanning the first upright, the loading device being mounted on the cross-member, the loading device being for applying a downward load to the wheel.
3. The test rig of claim 1, wherein the loading device includes an actuator mounted on the frame and a mount coupled to the actuator, the mount coupled to a shock absorber of the suspension, the actuator configured to apply the load to the wheel via the mount and the shock absorber.
4. Testing device according to claim 3, characterized in that the actuator and the mounting are connected by a movable joint part, the mounting being movable relative to the actuator.
5. The test apparatus according to claim 1, wherein the number of the slide blocks is plural, and an angle between a sliding direction of each slide block and a traveling direction of the wheel is different.
6. The testing apparatus of claim 5, wherein said plurality of said slides is formed in two sets, said sets being spaced apart, said wheels being disposed between said sets of said slides.
7. The testing apparatus according to claim 1, wherein the obstacle simulating device includes a guide provided on the flat plate, the guide being formed with a slide groove in which the slider is slidable.
8. Test rig according to claim 7, characterized in that the obstacle simulating means comprise a resilient member connecting the slide and the guide.
9. The test rig according to claim 1, wherein the test rig comprises a second upright and a subframe simulator disposed on the second upright, the subframe simulator being configured to couple to the suspension.
10. A test method, characterized in that the test method comprises:
providing a test device according to any one of claims 1 to 9;
providing a suspension with a wheel;
mounting the suspension on the bracket with the wheel supported on the plate;
controlling the loading device to apply a load to the wheel;
controlling the sliding block to slide towards the wheel to collide with the wheel.
11. The test method according to claim 10, wherein when the number of the sliders is plural, an angle between a sliding direction of each of the sliders and a traveling direction of the wheel is different, and the controlling of the sliders to slide toward the wheel to collide against the wheel includes:
and controlling each sliding block to slide towards the wheel so as to collide with the wheel.
12. The test method of claim 10, wherein the controlling the slide to slide toward the wheel to impact the wheel comprises:
controlling the sliding block to slide at a first speed when the flat rate of the tire of the wheel is greater than or equal to 50% and less than 60%;
and when the flat rate of the tire of the wheel is less than 50%, controlling the sliding block to slide at a second speed, wherein the second speed is less than the first speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011408934.0A CN112557067A (en) | 2020-12-04 | 2020-12-04 | Test apparatus and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011408934.0A CN112557067A (en) | 2020-12-04 | 2020-12-04 | Test apparatus and test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112557067A true CN112557067A (en) | 2021-03-26 |
Family
ID=75048531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011408934.0A Pending CN112557067A (en) | 2020-12-04 | 2020-12-04 | Test apparatus and test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112557067A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776861A (en) * | 2021-08-31 | 2021-12-10 | 吉林大学 | Device for verifying stability and service life of active suspension |
| CN114354156A (en) * | 2021-12-14 | 2022-04-15 | 北京云迹科技股份有限公司 | Suspension strength test frock |
| CN116773229A (en) * | 2023-08-15 | 2023-09-19 | 山东金彭新能源科技有限公司 | Durable detection device of automobile shock absorber ware |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3901342A1 (en) * | 1989-01-18 | 1990-07-19 | Bayern Tech Ueberwach Verein | Device for checking the play in the wheel suspension of a vehicle |
| EP0483016A1 (en) * | 1990-10-26 | 1992-04-29 | Societe Des Technologies Industrielles De La Qualite " S.T.I.Q." | Procedure and apparatus for controlling the efficiency of a suspension in situ |
| CN1710395A (en) * | 2004-06-16 | 2005-12-21 | 韩国轮胎株式会社 | Tyre side-wall impact test device |
| CN201837534U (en) * | 2010-10-11 | 2011-05-18 | 山东交通学院 | Multifunctional simulation testing platform of semi-active suspension of vehicle |
| CN203929405U (en) * | 2014-07-01 | 2014-11-05 | 北京强度环境研究所 | A kind of dynamic force transfer device with two-freedom |
| CN104764577A (en) * | 2015-04-17 | 2015-07-08 | 重庆长安汽车股份有限公司 | Tire radial impact test device and method |
| US20170219459A1 (en) * | 2016-01-31 | 2017-08-03 | Citic Dicastal Co., Ltd | Method for simulating real impact test of vehicle wheels |
| CN107192563A (en) * | 2017-06-15 | 2017-09-22 | 安徽工程大学 | Wheel hub drives electric automobile Electric Motor Wheel suspension system testing stand |
| CN206609621U (en) * | 2017-01-24 | 2017-11-03 | 中国汽车技术研究中心 | A kind of automobile side cylindrical collision experiment collision energy-absorbing device and collision test device |
| CN108645632A (en) * | 2018-07-26 | 2018-10-12 | 燕山大学 | A kind of multi-functional suspension testing stand of Multipexer condition |
| CN109187056A (en) * | 2018-09-20 | 2019-01-11 | 中信戴卡股份有限公司 | A kind of wheel suspension with true road surface characteristic is test bed |
| CN208579935U (en) * | 2018-07-12 | 2019-03-05 | 上海汽车集团股份有限公司 | Triple channel axis couples road simulation system |
| CN208705062U (en) * | 2018-08-30 | 2019-04-05 | 上海汽车集团股份有限公司 | Vehicle suspension assembly road simulation system |
| CN110501171A (en) * | 2019-08-23 | 2019-11-26 | 肇庆小鹏汽车有限公司 | Test-bed for multi-link lever suspension fork |
| CN111175057A (en) * | 2020-03-04 | 2020-05-19 | 吉林大学 | Automobile wheel dynamic impact simulation test bed |
| CN111624007A (en) * | 2020-07-11 | 2020-09-04 | 叶庆国 | Automobile tire test simulation system based on dynamic environment parameter test |
| CN211527763U (en) * | 2020-01-17 | 2020-09-18 | 中国第一汽车股份有限公司 | Pendulum impact test stand for quarter-corner module subsystem of passenger vehicle |
| CN211553319U (en) * | 2020-08-19 | 2020-09-22 | 山东昌丰轮胎有限公司 | Tire side impact test device |
| CN111707482A (en) * | 2020-06-10 | 2020-09-25 | 中国第一汽车股份有限公司 | Eight-channel multifunctional suspension road simulation test bed |
| CN211978335U (en) * | 2020-06-03 | 2020-11-20 | 上海捷亦汽车服务有限公司 | Fatigue impact test equipment for automobile chassis |
-
2020
- 2020-12-04 CN CN202011408934.0A patent/CN112557067A/en active Pending
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3901342A1 (en) * | 1989-01-18 | 1990-07-19 | Bayern Tech Ueberwach Verein | Device for checking the play in the wheel suspension of a vehicle |
| EP0483016A1 (en) * | 1990-10-26 | 1992-04-29 | Societe Des Technologies Industrielles De La Qualite " S.T.I.Q." | Procedure and apparatus for controlling the efficiency of a suspension in situ |
| CN1710395A (en) * | 2004-06-16 | 2005-12-21 | 韩国轮胎株式会社 | Tyre side-wall impact test device |
| CN201837534U (en) * | 2010-10-11 | 2011-05-18 | 山东交通学院 | Multifunctional simulation testing platform of semi-active suspension of vehicle |
| CN203929405U (en) * | 2014-07-01 | 2014-11-05 | 北京强度环境研究所 | A kind of dynamic force transfer device with two-freedom |
| CN104764577A (en) * | 2015-04-17 | 2015-07-08 | 重庆长安汽车股份有限公司 | Tire radial impact test device and method |
| US20170219459A1 (en) * | 2016-01-31 | 2017-08-03 | Citic Dicastal Co., Ltd | Method for simulating real impact test of vehicle wheels |
| CN206609621U (en) * | 2017-01-24 | 2017-11-03 | 中国汽车技术研究中心 | A kind of automobile side cylindrical collision experiment collision energy-absorbing device and collision test device |
| CN107192563A (en) * | 2017-06-15 | 2017-09-22 | 安徽工程大学 | Wheel hub drives electric automobile Electric Motor Wheel suspension system testing stand |
| CN208579935U (en) * | 2018-07-12 | 2019-03-05 | 上海汽车集团股份有限公司 | Triple channel axis couples road simulation system |
| CN108645632A (en) * | 2018-07-26 | 2018-10-12 | 燕山大学 | A kind of multi-functional suspension testing stand of Multipexer condition |
| CN208705062U (en) * | 2018-08-30 | 2019-04-05 | 上海汽车集团股份有限公司 | Vehicle suspension assembly road simulation system |
| CN109187056A (en) * | 2018-09-20 | 2019-01-11 | 中信戴卡股份有限公司 | A kind of wheel suspension with true road surface characteristic is test bed |
| CN110501171A (en) * | 2019-08-23 | 2019-11-26 | 肇庆小鹏汽车有限公司 | Test-bed for multi-link lever suspension fork |
| CN211527763U (en) * | 2020-01-17 | 2020-09-18 | 中国第一汽车股份有限公司 | Pendulum impact test stand for quarter-corner module subsystem of passenger vehicle |
| CN111175057A (en) * | 2020-03-04 | 2020-05-19 | 吉林大学 | Automobile wheel dynamic impact simulation test bed |
| CN211978335U (en) * | 2020-06-03 | 2020-11-20 | 上海捷亦汽车服务有限公司 | Fatigue impact test equipment for automobile chassis |
| CN111707482A (en) * | 2020-06-10 | 2020-09-25 | 中国第一汽车股份有限公司 | Eight-channel multifunctional suspension road simulation test bed |
| CN111624007A (en) * | 2020-07-11 | 2020-09-04 | 叶庆国 | Automobile tire test simulation system based on dynamic environment parameter test |
| CN211553319U (en) * | 2020-08-19 | 2020-09-22 | 山东昌丰轮胎有限公司 | Tire side impact test device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113776861A (en) * | 2021-08-31 | 2021-12-10 | 吉林大学 | Device for verifying stability and service life of active suspension |
| CN114354156A (en) * | 2021-12-14 | 2022-04-15 | 北京云迹科技股份有限公司 | Suspension strength test frock |
| CN116773229A (en) * | 2023-08-15 | 2023-09-19 | 山东金彭新能源科技有限公司 | Durable detection device of automobile shock absorber ware |
| CN116773229B (en) * | 2023-08-15 | 2023-11-21 | 山东金彭新能源科技有限公司 | Durable detection device of automobile shock absorber ware |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112557067A (en) | Test apparatus and test method | |
| US10386270B2 (en) | Method for simulating real impact test of vehicle wheels | |
| CN101718632B (en) | Multifunctional test bed for simulating condition by one-quarter suspension of vehicle | |
| US7530264B2 (en) | Test apparatus for accelerated wheel and suspension component structural durability | |
| CN210269198U (en) | Multi-channel bench test device of suspension system | |
| CN215065293U (en) | Test apparatus and test system | |
| CN101464220A (en) | Vehicle collision test simulating device | |
| CN102472688A (en) | Method for operating a crash simulation device, auxiliary device for a crash simulation device, and crash simulation device having such an auxiliary device | |
| CN110715810B (en) | Suspension part multi-axis bench test device | |
| KR101711515B1 (en) | Pitching simulator for automobile | |
| CN214373383U (en) | Fatigue test equipment for automobile chassis simulation road test | |
| CN201548409U (en) | Simulated condition multifunctional test bed of one-quarter suspension of vehicle | |
| CN116502343B (en) | Automobile suspension optimal design method, system, storage medium and equipment | |
| CN219495636U (en) | Torsion beam rear axle bench test device | |
| WO2015178865A1 (en) | Multi functional test device for leaf springs | |
| JP2006023117A (en) | Truck for vehicular collision test | |
| US9792830B2 (en) | Full motion racing simulator | |
| CN213779511U (en) | Electric automobile drags end test bench | |
| CN213714699U (en) | Commercial car leaf spring testing arrangement | |
| CN114838962A (en) | Front suspension system testing device | |
| CN209802682U (en) | Wire-controlled steering system experimental device | |
| CN113551892A (en) | Multi-axis fatigue endurance test tool | |
| CN112326275A (en) | Test apparatus and test method | |
| CN216816037U (en) | Integrated air suspension vibration damping strut performance test bench device | |
| CN101425232A (en) | Train emulation device for six-freedom driving cap |
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 |