CN113686598B - K & C test bench-based tire wheel cover interference inspection method - Google Patents
K & C test bench-based tire wheel cover interference inspection method Download PDFInfo
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- CN113686598B CN113686598B CN202110745341.1A CN202110745341A CN113686598B CN 113686598 B CN113686598 B CN 113686598B CN 202110745341 A CN202110745341 A CN 202110745341A CN 113686598 B CN113686598 B CN 113686598B
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- 238000012360 testing method Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000007689 inspection Methods 0.000 title claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000011161 development Methods 0.000 abstract description 3
- 239000000725 suspension Substances 0.000 description 5
- 239000006261 foam material Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
- G01M17/02—Tyres
- G01M17/027—Tyres using light, e.g. infrared, ultraviolet or holographic techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/2441—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using interferometry
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tires In General (AREA)
Abstract
The invention provides a tire wheel cover interference checking method based on a K & C test bed, which comprises the following steps: s1, obtaining tire outline point cloud by using 3D scanning equipment, and reversely establishing tire digital models; s2, obtaining a wheel cover outer contour point cloud by using 3D scanning equipment, and reversely establishing a wheel cover digital model; s3, acquiring a wheel jump travel and a corner working condition of the vehicle, and establishing a roof map according to a formulated tire envelope working condition specification; s4, performing wheel jump and steering tests by using a K & C test bench to obtain an envelope space of the tire; s5, editing a tire positioning file, establishing a tire envelope surface by using simulation software, and outputting the tire envelope surface; s6, checking and measuring interference and clearance conditions of the tire envelope surface and the wheel cover through simulation software. The invention is suitable for building the enveloping surface of the automobile tire and checking the interference with the wheel cover, can finish the bench test in the whole automobile state, does not need road test or building a multi-body dynamics model, shortens the development period and reduces the cost.
Description
Technical Field
The invention belongs to the technical field of automobile performance development and testing, and particularly relates to a tire wheel cover interference checking method based on a K & C test bench.
Background
The existing interference inspection method for the automobile tire wheel cover comprises the following two steps: a whole vehicle test method and a simulation analysis method; the whole vehicle test method is that in the whole vehicle state, foam materials are sprayed on a wheel cover, when the real vehicle runs under the selected working condition, if the tire is contacted with the foam materials, the contact part is removed, the selected working condition test is continued, and the residual foam material space after multi-wheel correction is the residual space of the tire envelope surface, so the test time is long and the cost is high; the simulation analysis method is to utilize multi-body dynamics software or 3D design software with DMU (Digital Mock-Up) digitization model machine function, obtain the envelope space of the tire by setting wheel jump and steering combination, and use for interference inspection, the method needs to obtain parameter information such as suspension hard spot, bushing rigidity, etc., and meanwhile needs to consider the assembly tolerance and component tolerance of each system, and the time for obtaining the parameters is long and the cost is high; accordingly, there is a need for a tire casing interference inspection method based on a K & C test stand.
Disclosure of Invention
In view of the above, the present invention aims to provide a tire casing interference inspection method based on a K & C test bench, so as to solve the problem that the tire envelope surface cannot be obtained economically and efficiently in a short time.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
a tire wheel cover interference checking method based on a K & C test bench comprises the following steps:
s1, obtaining tire outline point cloud by using 3D scanning equipment, and reversely establishing tire digital models;
s2, obtaining a wheel cover outer contour point cloud by using 3D scanning equipment, and reversely establishing a wheel cover digital model;
s3, acquiring a wheel jump travel and a corner working condition of the vehicle, and establishing a roof map according to a formulated tire envelope working condition specification;
s4, performing wheel jump and steering tests to obtain an envelope space of the tire;
s5, editing a tire positioning file, establishing a tire envelope surface by using simulation software, and outputting the tire envelope surface;
s6, checking and measuring interference and clearance conditions of the tire envelope surface and the wheel cover through simulation software.
Further, in step S1, when the tire digital model is reversely established, the generation of the revolution body digital model can be simplified, and the outer contour digital model with the tire anti-skid chain can also be established.
Further, the making of the tire envelope specification in step S3 includes taking the steering wheel angle as the abscissa and the wheel jump position as the ordinate.
Further, in step S4, the wheel jump and steering test is performed by using the K & C test bench, and the specific steps are as follows:
s401, establishing a two-dimensional graph of a test scheme on a K & C test bench by taking wheel jump and steering as input parameters;
s402, outputting parameter data in real time by a K & C test bench for positioning the tire and obtaining the occupied space of the tire in real time;
s403, merging all the tire occupied spaces obtained in step S402, i.e. a=a 1 ∪A 2 ∪A 3 ···∪A i A tire envelope space is obtained.
Further, in step S402, the output parameter data includes longitudinal, lateral, and vertical displacement of the wheel center, toe-in, camber, and rotation angle.
Further, in step S5, the tire positioning file includes x/y/z coordinates of the wheel center and x/y/z coordinates of the tire spindle direction point, and the x/y/z coordinates of the tire spindle direction point are calculated by the wheel center coordinates and toe angle, and the calculation formula is:
Xs＝Xw+L*sin(toe)*cos(camber)；
Zs＝Zw+L*cos(toe)*sin(camber)；
Ys＝Yw+L*cos(toe)*cos(camber)；
wherein Xs, ys and Zs are spindle direction point coordinates, xw/Yw/Zw is wheel center coordinates, toe is toe angle, cam is camber angle, and L is the distance from the wheel center to the spindle direction point.
Compared with the prior art, the tire wheel cover interference checking method based on the K & C test bench has the following beneficial effects:
the K & C test bench-based tire cover interference checking method is suitable for building the envelope surface of the automobile tire and checking the interference between the tire cover and the tire cover, can finish bench test in the whole automobile state, does not need road test or building a multi-body dynamics model, shortens the development period and reduces the cost.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a tire envelope roof view according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a front suspension tire package according to an embodiment of the present invention;
FIG. 3 is a schematic view of a tire alignment file according to an embodiment of the present invention;
fig. 4 is a schematic view of a tire envelope according to an embodiment of the present invention.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
The K & C (kinetic & company) test bed is used for testing the change of positioning parameters of a suspension system when the suspension system is subjected to wheel jump, steering and various tire forces, can provide wheel jump and steering input required for building the tire envelope, and can provide longitudinal, lateral and vertical displacement of the wheel center, toe-in, camber and rotation angle output, so as to meet the building requirement of the tire envelope.
A tire wheel cover interference checking method based on a K & C test bench comprises the following steps:
s1, obtaining tire outline point cloud by using 3D scanning equipment, and reversely establishing tire digital models;
s2, obtaining a wheel cover outer contour point cloud by using 3D scanning equipment, and reversely establishing a wheel cover digital model;
s3, acquiring a wheel jump travel and a corner working condition of the vehicle, and establishing a roof map according to a formulated tire envelope working condition specification, wherein the roof map is shown in FIG. 1, and a specific front suspension tire envelope roof map is shown in FIG. 2;
s4, performing wheel jump and steering tests to obtain an envelope space of the tire;
s5, editing a tire positioning file, and building a tire envelope surface by using simulation software, outputting the tire envelope, wherein the tire envelope surface is shown in FIG. 4;
s6, checking and measuring interference and clearance conditions of the tire envelope surface and the wheel cover through simulation software.
In step S1, when the tire digital model is reversely built, the generation of the revolution body digital model can be simplified, and the outer contour digital model with the tire anti-skid chain can also be built.
The making of the tire enveloping condition specification in the step S3 comprises taking the steering wheel rotation angle as an abscissa and the wheel jump position as an ordinate.
In the step S4, a K & C test bench is used for carrying out wheel jump and steering tests, and the specific steps are as follows:
s401, building a two-dimensional graph of a test scheme on a K & C test bench by taking wheel jump and steering as input parameters, if the two-dimensional graph starts from a lower wheel jump limit, keeping the wheel jump unchanged, rotating a steering wheel from a left limit to a right limit (different limit positions corresponding to different wheel jump positions are determined by a roof graph), increasing the wheel jump, keeping the wheel jump position unchanged, continuously increasing the wheel jump and steering from the left limit to the right limit until the upper wheel jump limit position is reached;
s402, outputting parameter data in real time by a K & C test bench for positioning the tire and obtaining the occupied space of the tire in real time;
s403, merging all the tire occupied spaces obtained in step S402, i.e. a=a 1 ∪A 2 ∪A 3 ···∪A i A tire envelope space is obtained.
In step S402, the output parameter data includes longitudinal, lateral, and vertical displacement of the wheel center, toe-in, camber, and rotation angle.
In step S5, the tire positioning file includes x/y/z coordinates of the wheel center and x/y/z coordinates of the tire spindle direction point, and the x/y/z coordinates of the tire spindle direction point are calculated by the wheel center coordinates and toe-in angle, and the calculation formula is:
Xs＝Xw+L*sin(toe)*cos(camber)；
Zs＝Zw+L*cos(toe)*sin(camber)；
Ys＝Yw+L*cos(toe)*cos(camber)；
wherein Xs, ys and Zs are spindle direction point coordinates, xw/Yw/Zw is wheel center coordinates, toe is toe angle, cam is camber angle, L is distance from the wheel center to the spindle direction point, and the tire positioning file is shown in fig. 3.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (3)
1. A tire wheel cover interference checking method based on a K & C test bench is characterized by comprising the following steps:
s1, obtaining tire outline point cloud by using 3D scanning equipment, and reversely establishing tire digital models;
s2, obtaining a wheel cover outer contour point cloud by using 3D scanning equipment, and reversely establishing a wheel cover digital model;
s3, acquiring a wheel jump travel and a corner working condition of the vehicle, and establishing a roof map according to a formulated tire envelope working condition specification;
s4, performing wheel jump and steering tests to obtain an envelope space of the tire;
in the step S4, a K & C test bench is used for carrying out wheel jump and steering tests, and the specific steps are as follows:
s401, establishing a two-dimensional graph of a test scheme on a K & C test bench by taking wheel jump and steering as input parameters;
s402, outputting parameter data in real time by a K & C test bench for positioning the tire and obtaining the occupied space of the tire in real time;
in step S402, the output parameter data includes longitudinal, lateral, and vertical displacement of the wheel center, toe-in, camber, and rotation angle;
s403, merging all the tire occupied spaces obtained in step S402, i.e. a=a 1 ∪A 2 ∪A 3 …∪A i Obtaining a tire envelope space;
s5, editing a tire positioning file, establishing a tire envelope surface by using simulation software, and outputting the tire envelope surface;
in step S5, the tire positioning file includes x/y/z coordinates of the wheel center and x/y/z coordinates of the tire spindle direction point, and the x/y/z coordinates of the tire spindle direction point are calculated by the wheel center coordinates and toe-in angle, and the calculation formula is:
Xs＝Xw+L*sin(toe)*cos(camber)；
Zs＝Zw+L*cos(toe)*sin(camber)；
Ys＝Yw+L*cos(toe)*cos(camber)；
wherein Xs, ys and Zs are spindle direction point coordinates, xw/Yw/Zw is wheel center coordinates, toe is toe angle, cam is camber angle, and L is the distance from the wheel center to the spindle direction point;
s6, checking and measuring interference and clearance conditions of the tire envelope surface and the wheel cover through simulation software.
2. The K & C bench based tire tread interference inspection method of claim 1, wherein: in step S1, when the tire digital model is reversely built, the generation of the revolution body digital model can be simplified, and the outer contour digital model with the tire anti-skid chain can also be built.
3. The K & C bench based tire tread interference inspection method of claim 1, wherein: the making of the tire envelope condition specification in the step S3 includes establishing a two-dimensional map with the steering wheel angle as an abscissa and the wheel jump position as an ordinate.
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| CN202110745341.1A CN113686598B (en) | 2021-06-30 | 2021-06-30 | K & C test bench-based tire wheel cover interference inspection method |
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| CN202110745341.1A CN113686598B (en) | 2021-06-30 | 2021-06-30 | K & C test bench-based tire wheel cover interference inspection method |
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| CN113686598A CN113686598A (en) | 2021-11-23 |
| CN113686598B true CN113686598B (en) | 2023-09-01 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09184791A (en) * | 1995-12-29 | 1997-07-15 | Nissan Altia Co Ltd | Compliance tester |
| KR101286096B1 (en) * | 2013-02-01 | 2013-07-15 | 조이엠(주) | An examination method of vehicle wheel alignment based on oval vision characteristic |
| CN104217047A (en) * | 2013-06-05 | 2014-12-17 | 广州汽车集团股份有限公司 | Method for manufacturing envelope face of automobile front steering wheel |
| CN105260515A (en) * | 2015-09-25 | 2016-01-20 | 上海大众汽车有限公司 | Interference checking method and system for dynamic enveloping surface of tire |
| CN212400793U (en) * | 2020-05-27 | 2021-01-26 | 摩登汽车有限公司 | Tire envelope test device |
-
2021
- 2021-06-30 CN CN202110745341.1A patent/CN113686598B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09184791A (en) * | 1995-12-29 | 1997-07-15 | Nissan Altia Co Ltd | Compliance tester |
| KR101286096B1 (en) * | 2013-02-01 | 2013-07-15 | 조이엠(주) | An examination method of vehicle wheel alignment based on oval vision characteristic |
| CN104217047A (en) * | 2013-06-05 | 2014-12-17 | 广州汽车集团股份有限公司 | Method for manufacturing envelope face of automobile front steering wheel |
| CN105260515A (en) * | 2015-09-25 | 2016-01-20 | 上海大众汽车有限公司 | Interference checking method and system for dynamic enveloping surface of tire |
| CN212400793U (en) * | 2020-05-27 | 2021-01-26 | 摩登汽车有限公司 | Tire envelope test device |
Non-Patent Citations (1)
| Title |
|---|
| 针对轮胎磨损问题的双横臂悬架K&C特性及优化;孙涛;孟祥平;陈文越;;机械设计与制造(第07期);218-221 * |
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