Complete vehicle pipeline motion test platform and test method

Abstract

The invention discloses a whole vehicle pipeline motion test platform and test method. The whole vehicle pipeline motion test platform comprises a mounting part; the fixed seat is movably mounted on the mounting part, is fixed with the mounting part when being adjusted to a preset position, and is used for fixing a fixed section of the pipeline; the moving seat is used for fixing the moving section of the pipeline, the driving part is mounted on the mounting part, the moving seat is connected with the driving part, and the driving part can drive the moving seat according to the motion trail of the whole vehicle; and the motion acquisition unit is used for recording a pipeline motion track and generating a three-dimensional motion envelope of a pipeline motion process. According to the whole vehicle pipeline motion test platform, the motion trail of the pipeline is actually simulated, the test state of the pipeline is kept consistent with the real vehicle state, the limitation of the production / assembly technology on the real vehicle state of the whole vehicle pipeline can be eliminated, abrasion caused by motion interference between the pipeline and peripheral parts in the vehicle using process is avoided, and the service life of the whole vehicle pipeline is prolonged. And resource waste caused by pipeline design scheme change in the whole vehicle development process is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automobiles, and in particular to a whole vehicle pipeline motion test platform and a test method. Background Art

[0002] There are many pipelines connecting moving parts and non-moving parts in the vehicle parts. In order to avoid interference and wear between these moving pipelines and surrounding parts and ensure space utilization, it is necessary to obtain the motion envelope of the pipelines so as to ensure that the pipelines have sufficient movement space as much as possible within the limited space.

[0003] At present, simulation software is usually used to generate the motion envelope of the pipeline based on the pipeline design status. However, due to the limitations of production / assembly processes, the actual vehicle pipeline status is often inconsistent with the design status. Compared with the design status, the actual vehicle pipeline is prone to problems such as being too long, too short, or inconsistent in direction. The pipeline motion envelope obtained in this way often deviates from the actual vehicle pipeline motion envelope, which sometimes causes pipelines designed based on this envelope to fail due to actual vehicle wear, resulting in changes in the pipeline plan and increased development costs. Summary of the invention

[0004] The purpose of the present invention is to provide a whole vehicle pipeline motion test platform, to eliminate the restrictions of the production / assembly process on the actual vehicle state of the whole vehicle pipeline, to determine the minimum movement space required for the whole vehicle pipeline during the use of the vehicle, to avoid the wear caused by the movement interference between the pipeline and the surrounding parts during the use of the vehicle, and to reduce the waste of resources caused by the change of the pipeline design scheme during the development of the whole vehicle.

[0005] In order to solve the above technical problems, the present invention provides a whole vehicle pipeline motion test platform, the pipeline has a fixed section and a moving section, and the whole vehicle pipeline motion test platform comprises:

[0006] Installation Department;

[0007] A fixing seat, movably mounted on the mounting portion and capable of being fixed relative to the mounting portion when adjusted to a preset position, the fixing seat being used to fix the fixing section of the pipeline;

[0008] A moving seat and a driving part, wherein the moving seat is used to fix the moving section of the pipeline, the driving part is connected to the mounting part, the moving seat and the driving part are connected, and the driving part can drive the moving seat according to the movement trajectory of the whole vehicle;

[0009] A motion acquisition unit is used to record the motion trajectory of the pipeline and generate a three-dimensional motion envelope of the pipeline motion process based on the recording result.

[0010] The whole vehicle pipeline motion test platform of the present invention includes the following preparations before the test starts:

[0011] Adjust the fixing seat to the preset position. The fixing seat is used to fix the connection with the fixed section of the pipeline, which can simulate the installation state of the pipeline on the non-moving parts of the vehicle;

[0012] The control driving unit adjusts the moving seat to a preset position. The moving seat is used to be fixedly connected with the moving section of the pipeline, and can simulate the installation state of the pipeline on the moving parts of the vehicle;

[0013] Connect the pipeline to the fixed seat and the moving seat to simulate the installation status of the pipeline on the whole vehicle. At this time, the overall posture of the pipeline should be consistent with the design plan of the whole vehicle.

[0014] Next, the test work can be carried out. Specifically: the control drive unit drives the moving seat according to the motion trajectory of the whole vehicle, and the moving seat drives the pipeline to simulate the motion trajectory of the local motion segment of the pipeline of the whole vehicle; the motion acquisition unit works synchronously to capture and record the motion trajectory of the pipeline; after the test is completed, the recording results are extracted, and the three-dimensional motion envelope of the pipeline can be generated through the software. This three-dimensional motion envelope is used in the development of the whole vehicle to help determine the gap distance that the surrounding parts need to avoid the pipeline, and ensure that the pipeline has sufficient movement space within the limited space as much as possible, to ensure space utilization, and avoid interference and wear between the pipeline and surrounding parts during the use of the vehicle.

[0015] It can be seen that the whole vehicle pipeline motion test platform of the present invention actually simulates the motion trajectory of the pipeline, and the test state of the pipeline is consistent with the actual vehicle state, which can eliminate the restrictions of the production / assembly process on the actual vehicle state of the whole vehicle pipeline, avoid the wear caused by the motion interference between the pipeline and the surrounding parts during the use of the vehicle, and reduce the waste of resources caused by the change of the pipeline design scheme during the whole vehicle development process.

[0016] Optionally, the motion acquisition unit includes one or more motion cameras, and the motion cameras are used to record the motion trajectory of the pipeline, and the arrangement directions of the multiple motion cameras are not completely the same.

[0017] Optionally, it further comprises an adjusting portion, the adjusting portion comprising an adjusting bracket and an adjusting block, the adjusting bracket being movably mounted on the mounting portion, and the mounting position being adjustable along a first direction, and the adjusting bracket being relatively fixed to the mounting portion when adjusted to a preset position,

[0018] The adjusting block is movably mounted on the adjusting bracket, and the mounting position is adjustable along the second direction. The adjusting block can also be relatively fixed with the adjusting bracket when adjusted to a preset position, and the fixing seat is connected to the adjusting block;

[0019] The first direction and the second direction are non-parallel.

[0020] Optionally, a controller is further included, the controller is electrically connected to the driving unit, the controller has an input port for inputting the whole vehicle motion parameters, and the controller can convert the whole vehicle motion parameters into control instructions for the driving unit;

[0021] The controller is also electrically connected to other electrical devices except the driving unit.

[0022] Optionally, the driving portion includes three driving units connected in sequence, the driving unit at the front end is connected to the mounting portion, and the driving unit at the rear end is connected to the moving seat.

[0023] The three driving units act together to drive the movement relative to the mounting portion to move along a first movement direction or rotate around the first movement direction, or to move along a second movement direction or rotate around the second movement direction, or to move along a third movement direction or rotate around the third movement direction.

[0024] The first moving direction, the second moving direction and the third moving direction are perpendicular to each other.

[0025] Optionally, the driving unit includes a base, a power mechanism, a screw-nut transmission unit and a motion platform, the screw-nut transmission unit includes a screw and a nut screwed together, the power mechanism is installed on the base, the power mechanism is connected to the screw, and the motion platform is connected to the nut.

[0026] The first stopper also includes a first stopper having a first stopper mechanism, the first stopper mechanism can move in a direction relatively close to or relatively far from the motion platform and switch between a first position and a second position,

[0027] When in the first position, the first limiting mechanism abuts against the motion platform to be relatively fixed, and the motion platform can move along the axial direction of the screw rod under the action of the power mechanism and the screw rod and nut transmission unit.

[0028] When in the second position, the first limiting mechanism is disengaged from the motion platform, and the motion platform can rotate around the axial direction of the screw rod under the action of the power mechanism and the screw rod and nut transmission unit;

[0029] The base in the frontmost driving unit is connected to the mounting portion, the moving platform in the rearmost driving unit is connected to the moving seat, and in two adjacent driving units, the moving platform in the former driving unit forms the base in the latter driving unit.

[0030] Optionally, the driving unit also includes a guide rail, a slider slidably mounted on the guide rail, and a stop portion. The guide rail is relatively fixed to the base, and the extension direction of the guide rail is consistent with the extension direction of the corresponding lead screw. The stop portion is fixedly connected to the slider, and a stop space is formed inside the stop portion. The motion platform is inserted inside the stop space. The motion platform and the stop portion limit each other in the extension direction of the lead screw. The motion platform and the stop portion can move relatively to each other in the circumferential direction of the lead screw, and the first limiter is relatively fixed to the slider.

[0031] Optionally, the driving unit also includes an extension rod, which is fixedly connected to the slider, and the stop portion includes two oppositely arranged stop plates, which are fixed to the upper and lower side walls of the extension rod, forming the stop space between the two stop plates, and the first limiter is installed on the extension rod.

[0032] Optionally, the driving unit further comprises a second limiter, the second limiter is fixed to the slider, the second limiter has a second limit mechanism, the second limit mechanism can move in a direction relatively close to or relatively far from the guide rail, and switch between a third position and a fourth position.

[0033] When in the third position, the second limiting mechanism abuts against the guide rail to be relatively fixed; when in the fourth position, the second limiting mechanism is disengaged from the guide rail.

[0034] Optionally, it also includes a peripheral part model sample. In a working state, the peripheral part model sample is installed on the moving seat, or is relatively fixed to the mounting portion, and the peripheral part model sample is located at preset positions around the pipeline.

[0035] The present invention also provides a whole vehicle pipeline motion test method, based on the above-mentioned whole vehicle pipeline motion test platform, comprising the following steps:

[0036] Step S1: manufacturing pipelines according to the vehicle pipeline design plan, and pasting calibration points on the pipelines;

[0037] Step S2: according to the whole vehicle pipeline design plan, a fixed seat and a moving seat are manufactured, the fixed seat is installed on the installation part, the moving seat is installed on the driving part, and the fixed seat and the moving seat are adjusted to a preset position, and the pipeline is installed on the fixed seat and the moving seat, and the posture of the pipeline is consistent with the whole vehicle pipeline design plan;

[0038] Step S3: controlling the driving unit to drive the moving seat according to the moving trajectory of the whole vehicle, and turning on the moving camera to record the moving trajectory of the pipeline;

[0039] Step S4: reading the recording results, and generating a three-dimensional motion envelope of the pipeline motion process based on the recording results.

[0040] The whole vehicle pipeline movement test method of the present invention is based on the above-mentioned whole vehicle pipeline movement test platform, and therefore has the same technical effect as the above-mentioned whole vehicle pipeline movement test platform, which will not be repeated here.

[0041] Optionally, step S3 specifically includes:

[0042] The motion parameters of the whole vehicle are input into the controller, and the controller converts the motion parameters of the whole vehicle into control instructions of the driving unit to control the driving unit to drive the moving seat according to the motion trajectory of the whole vehicle.

[0043] Optionally, step S2 further includes: making a peripheral part model sample, pasting calibration points on the peripheral part model sample, and adding the peripheral part model sample according to the actual relative relationship of the vehicle;

[0044] Step S4 also includes: generating boundary information of the surrounding part model sample based on the recording result.

[0045] Optionally, it also includes:

[0046] Repeating steps S2 to S4, using the same pipeline to generate multiple three-dimensional motion envelopes of the pipeline motion process, or using the same pipeline to generate multiple three-dimensional motion envelopes of the pipeline motion process and boundary information of the surrounding part model samples;

[0047] Or, in step S1, a plurality of the pipelines are produced, and steps S2 to S4 are repeatedly executed, and a plurality of the pipelines are used to generate a plurality of three-dimensional motion envelopes of the pipeline motion processes, or a plurality of the pipelines are used to generate a plurality of three-dimensional motion envelopes of the pipeline motion processes and boundary information of the surrounding part model samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 This is a structural schematic diagram of a specific embodiment of the vehicle pipeline motion test platform provided by the present invention;

[0049] Figure 2 for Figure 1 Schematic diagram of the internal structure of the installation part in the vehicle pipeline motion test platform;

[0050] Figure 3 for Figure 1 The structural diagram of the drive unit in the vehicle pipeline motion test platform;

[0051] Figure 4 for Figure 3 A schematic diagram of the structure of one of the drive units in the drive section;

[0052] Figure 5 for Figure 4 Structural diagram of the second angle;

[0053] in, Figure 1-Figure 5 The reference numerals in the figures are described as follows:

[0054] 1-installation part; 11-base; 12-installation frame; 121-support arm; 122-connecting arm;

[0055] 2-fixed seat;

[0056] 3-Sports seat;

[0057] 4-driving part; 41-base; 42-power mechanism; 43-screw-nut transmission unit; 431-screw; 432-nut; 44-moving platform; 44a-limiting hole; 45-first limiter; 451-first limiter; 46-guide rail; 47-slider; 48-stopper; 481-stopper; 49-extension rod; 410-second limiter; 4101-second limiter; 411-fixed plate;

[0058] 5-Sports camera;

[0059] 6-adjusting part, 61-adjusting bracket; 61a-first slide slot; 611-folding part; 62-adjusting block; 63-limiting block;

[0060] 7- Controller;

[0061] 01-Pipeline. DETAILED DESCRIPTION

[0062] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0063] The “plurality” mentioned herein generally means more than two; and when “plurality” is used to indicate the number of certain components, it does not indicate the relationship between the quantities of these components.

[0064] Please refer to Figure 1-Figure 2 , Figure 1 This is a structural schematic diagram of a specific embodiment of the vehicle pipeline motion test platform provided by the present invention; Figure 2 for Figure 1 Schematic diagram of the internal structure of the installation part in the vehicle pipeline motion test platform.

[0065] The present invention provides a whole vehicle pipeline motion test platform, which is used to simulate the motion envelope of the whole vehicle pipeline 01 during the vehicle movement process. The pipeline 01 has a fixed section and a moving section. The whole vehicle pipeline motion test platform specifically includes:

[0066] Installation part 1;

[0067] The fixing seat 2 is movably mounted on the mounting portion 1 and can be relatively fixed with the mounting portion 1 when adjusted to a preset position. The fixing seat 2 is used to fix the fixed section of the pipeline 01;

[0068] The moving seat 3 and the driving part 4, the moving seat 3 is used to fix the moving section of the pipeline 01, the driving part 4 is connected to the mounting part 1, the moving seat 3 and the driving part 4 are connected, and the driving part 4 can drive the moving seat 3 according to the movement trajectory of the whole vehicle;

[0069] The motion acquisition unit is used to record the motion trajectory of pipeline 01 and generate three-dimensional motion envelope data of the motion process of pipeline 01 based on the recording result.

[0070] The whole vehicle pipeline motion test platform of the present invention includes the following preparations before the test starts:

[0071] Adjust the fixing seat 2 to the preset position. The fixing seat 2 is used to be fixedly connected with the fixed section of the pipeline 01, and can simulate the installation state of the pipeline 01 on the non-moving parts of the vehicle;

[0072] The control driving unit 4 adjusts the moving seat 3 to a preset position. The moving seat 3 is used to be fixedly connected with the moving section of the pipeline 01, and can simulate the installation state of the pipeline 01 on the moving parts of the whole vehicle;

[0073] Connect pipeline 01 to fixed seat 2 and moving seat 3 to simulate the installation state of pipeline 01 on the whole vehicle. At this time, the overall posture of pipeline 01 should be consistent with the design plan of the whole vehicle.

[0074] Next, the test work can be carried out, specifically: the control drive unit 4 drives the moving seat 3 according to the motion trajectory of the whole vehicle, and the moving seat 3 drives the pipeline 01 to partially realize the simulation of the motion trajectory of the local motion segment of the pipeline of the whole vehicle; the motion acquisition unit works synchronously to capture and record the motion trajectory of the pipeline 01; after the test is completed, the recording results are extracted, and the three-dimensional motion envelope of the pipeline 01 can be generated through the software. This three-dimensional motion envelope is used in the development of the whole vehicle, which can help determine the gap distance that the surrounding parts need to avoid the pipeline 01, and ensure that the pipeline has sufficient movement space within the limited space as much as possible, ensure space utilization, and avoid interference and wear between the pipeline 01 and the surrounding parts during the use of the vehicle.

[0075] It can be seen that the vehicle pipeline motion test platform of the present invention actually simulates the motion trajectory of pipeline 01, and the test state of pipeline 01 is consistent with the actual vehicle state, which can eliminate the restrictions of the production / assembly process on the actual vehicle state of the vehicle pipeline, avoid the wear caused by the motion interference between pipeline 01 and surrounding parts during the use of the vehicle, and reduce the waste of resources caused by the change of pipeline design scheme in the process of vehicle development.

[0076] The pipeline 01 can be fixed to the fixed seat 2 or the movable seat 3 in different ways, such as snap-on, gluing, bundling, etc.

[0077] The motion acquisition unit includes a motion camera 5, which is used to capture the motion trajectory of the pipeline 01. Figure 1 As shown, the motion camera 5 is located on the side of the mounting portion 1 , and there are two motion cameras 5 . The two motion cameras 5 are arranged in different directions, and can record the motion trajectory of the pipeline 01 from different viewing angles.

[0078] It can be understood that in actual applications, there is no limit to the number of motion cameras 5, such as the number of motion cameras 5 can be at least one; when the number of motion cameras 5 is multiple, the arrangement directions of the multiple motion cameras 5 are not exactly the same, so that the motion trajectory of the pipeline 01 can be recorded from different perspectives.

[0079] In addition, the motion camera 5 can be movably placed on the side of the mounting portion 1 , so that the position of the motion camera 5 relative to the pipeline 01 can be adjusted according to actual usage, as long as the movement process of the pipeline 01 can be recorded normally.

[0080] Among them, the aforementioned "software generates a three-dimensional motion envelope of the motion process of pipeline 01 based on the recording results", the specific software, operation process, etc. are all existing technologies well known to technical personnel in this field and will not be repeated here.

[0081] Please continue to refer to Figure 1 In this embodiment, the mounting portion 1 includes a base 11 and a mounting frame 12 connected to the top of the base 11. The mounting frame 12 is a rectangular structure, including a support portion located at the upper end, and four connecting arms 122. The support portion is a rectangular structure. The connecting arms 122 extend in the vertical direction. The upper ends of the four connecting arms 122 are connected to the four corners of the support portion one by one, and the lower ends of the connecting arms 122 are connected to the base 11. The fixing seat 2 and the driving portion 4 are both installed on the mounting frame 12.

[0082] It can be understood that in actual applications, the mounting portion 1 serves as the mounting base of the entire platform and is used to integrate other structures, and its specific structure and shape are not limited to the above-mentioned embodiments.

[0083] Please continue to refer to Figure 1 and Figure 2 The fixing seat 2 is movably mounted on the mounting portion 1 and can be relatively fixed to the mounting portion 1 when adjusted to a preset position. Specifically in this embodiment:

[0084] The test platform also includes an adjustment portion 6, which includes an adjustment bracket 61, an adjustment block 62 and a limit block 63. The adjustment bracket 61 is a rod-shaped structure, and the axial ends of the adjustment bracket 61 form a first slide groove 61a with an opening at the lower end. In the mounting frame 12, the support portion includes two parallel support arms 121. After the adjustment bracket 61 is installed on the mounting frame 12, the support arm 121 is located in the first slide groove 61a at the corresponding end of the adjustment bracket 61, and the adjustment bracket 61 can slide along the axial direction of the support arm 121, and the sliding direction of the adjustment bracket 61 is defined as the first direction;

[0085] The end of the adjustment bracket 61 is provided with a folding portion 611 folded outward at the open end of the first slide groove 61a, and the limit block 63 is connected to the folding portion 611 and is detachable. In the installed state, the limit block 63 is located at the lower side of the support arm 121, and the limit block 63 is installed with an extrusion piece. When the adjustment bracket 61 slides to a preset position along the axial direction of the support arm 121, the extrusion piece can squeeze the support arm 121 to achieve relative fixation of the adjustment bracket 61 and the support arm 121;

[0086] The adjusting block 62 has a second slide groove, one side of which is open and extends horizontally. The adjusting bracket 61 is located inside the second slide groove. The adjusting block 62 can slide along the axial direction of the adjusting bracket 61. The sliding direction of the adjusting block 62 is defined as the second direction. It can be seen that the first direction and the second direction are perpendicular to each other. The adjusting block 62 is installed with an extrusion piece. When the adjusting block 62 is adjusted to a preset position along the axial direction of the adjusting bracket 61, the extrusion piece can squeeze the adjusting bracket 61 to achieve relative fixation of the adjusting bracket 61 and the adjusting block 62. The fixing seat 2 is connected to the adjusting block 62.

[0087] In the adjustment part 6 of the present invention, the installation position of the adjustment bracket 61 is adjustable along the first direction, and the installation position of the adjustment block 62 is along the second direction. The first direction and the second direction are perpendicular to each other. Therefore, by adjusting the positions of the adjustment bracket 61 and the adjustment block 62, the horizontal position of the fixed seat 2 can be adjusted, so as to adjust the fixed seat 2 to a preset position in the horizontal plane. At the same time, by adjusting the vertical position of the moving seat 3 through the driving part 4, the relative positions of the fixed seat 2 and the moving seat 3 in the vertical direction can be adjusted, ensuring that the installation state of the pipeline 01 is consistent with the actual vehicle state.

[0088] In practical applications, for different test objects, changing the height of the fixing seat 2 is also one of the means to achieve vertical adjustment of the fixing point of the pipeline 01.

[0089] Depend on Figure 1 and Figure 2 It can be seen that in the present embodiment, the first direction and the second direction are both horizontal directions, and the first direction and the second direction are perpendicular to each other. In practical applications, the first direction and the second direction are not necessarily horizontal, nor are they necessarily perpendicular to each other. As long as the first direction and the second direction are not parallel, by adjusting along any two non-parallel directions, the movement of the fixing seat 2 can always be decomposed into movement in two perpendicular directions within a certain plane.

[0090] Of course, in the present application, the first direction and the second direction are perpendicular to each other, so that the driving efficiency is higher, which is a more preferred technical solution.

[0091] Among them, the limit block 63 is detachably connected to the folding part 611, and the specific connection method is not limited. For example, the limit block 63 and the folding part 611 can be correspondingly provided with connecting holes, and also include connecting bolts and fixing nuts. The connecting bolts pass through the corresponding two connecting holes and are then threadedly connected with the fixing nuts to achieve relative fixation of the limit block 63 and the folding part 611; or, the folding part 611 is provided with a threaded connecting column extending in the vertical direction, and the limit block 63 is provided with a threaded connecting hole, and the threaded connecting column and the threaded connecting hole are threadedly connected to achieve relative fixation of the limit block 63 and the folding part 611.

[0092] During the installation process, the limit block 63 can be removed first to facilitate the installation of the support arm 121 in the first slide groove 61a. After the adjustment bracket 61 slides to the preset position, the limit block 63 is connected to the folding part 611, and the support arm 121 is squeezed by the extrusion piece to achieve relative fixation of the adjustment bracket 61 and the support arm 121.

[0093] Among them, the limit block 63 is installed with an extrusion part, and the specific structure of the extrusion part is not limited. For example, the limit block 63 is provided with a threaded connection hole, and the peripheral wall of the extrusion part is provided with a matching external thread. The extrusion part is screwed inside the threaded connection hole. By twisting the extrusion part, the extrusion part can abut against the lower side wall of the support arm 121, and the support arm 121 is pressed tightly inside the first slide groove 61a, so as to achieve the relative fixation of the adjustment bracket 61 and the support arm 121; or by twisting the extrusion part in the opposite direction, the extrusion part can loosen the lower side wall of the support arm 121, so as to achieve the adjustable position of the adjustment bracket 61.

[0094] The connection mode between the adjusting block 62 and the extrusion member is similar to the connection mode between the limiting block 63 and the extrusion member, and will not be described in detail here.

[0095] There is no limitation on the connection method between the fixing seat 2 and the adjusting block 62 , and different fixing methods such as screw connection, welding, gluing, adsorption, clamping, bundling, etc. may be used.

[0096] like Figure 2As shown, in this embodiment, the fixed seat 2 and the moving seat 3 are provided with two fixing points for fixing the pipeline 01. In practical applications, the number of fixing points provided on the fixed seat 2 and the moving seat 3 can be more than two, as long as the installation stability of the pipeline 01 is guaranteed.

[0097] Of course, in practical applications, the adjusting part 6 can also be implemented in a variety of ways, such as the adjusting part 6 includes a first driving cylinder, a second driving cylinder and a transfer plate, the cylinder body of the first driving cylinder is fixed to the mounting part 1, the push rod of the first driving cylinder extends in a first direction, the transfer plate is connected to the push rod of the first driving cylinder, the cylinder body of the second driving cylinder is fixed to the transfer plate, the push rod of the second driving cylinder extends in a second direction, and the fixed seat 2 is connected to the push rod of the second driving cylinder.

[0098] In this way, the push rod of the first driving cylinder is extended or retracted, so that the position of the fixed seat 2 in the first direction can be adjusted. The push rod of the second driving cylinder is extended or retracted, so that the position of the fixed seat 2 in the second direction can be adjusted. The combination of the two can realize the adjustable horizontal position of the fixed seat 2.

[0099] Please continue to refer to Figure 1 The whole vehicle pipeline motion test platform of the present invention also includes a controller 7, which is electrically connected to the driving unit 4. The controller 7 has an input port for inputting whole vehicle motion parameters. The controller 7 can convert the whole vehicle motion parameters into control instructions of the driving unit 4, so that the driving unit 4 drives the motion seat 3 according to the whole vehicle motion trajectory.

[0100] At the same time, the controller 7 is also electrically connected to other electrical devices except the driving unit 4 .

[0101] In this way, the controller 7 has both power supply and control functions. On the one hand, it is responsible for providing working power to each electrical equipment; on the other hand, the controller 7 can convert the motion parameters of the whole vehicle into control instructions of the drive unit 4, and then the drive unit 4 can drive the moving seat 3 according to the motion trajectory of the whole vehicle, thereby realizing the motion trajectory simulation of the pipeline 01.

[0102] The controller 7 may have different shapes. The controller 7 may be fixed to the base 11 in different ways, such as screwing, welding, gluing, adsorption, clamping, bundling, etc. Of course, it is also feasible to flexibly place the controller 7 on the base 11, in which case the controller 7 has no fixed connection with the base 11.

[0103] Please refer to Figure 1-Figure 5 , Figure 3 for Figure 1 The structural diagram of the drive unit in the vehicle pipeline motion test platform; Figure 4 for Figure 3 A schematic diagram of the structure of one of the drive units in the drive section; Figure 5 for Figure 4 Schematic diagram of the structure from the second angle.

[0104] In the vehicle pipeline motion test platform of the present invention, the driving part 4 includes three driving units connected in sequence, the frontmost driving unit is connected to the mounting part 1, and the rearmost driving unit is connected to the motion seat 3.

[0105] The three driving units work together to drive the moving seat 3 to move along the first moving direction or rotate around the first moving direction, or to move along the second moving direction or rotate around the second moving direction, or to move along the third moving direction or rotate around the third moving direction relative to the mounting portion 1.

[0106] The first moving direction, the second moving direction and the third moving direction are perpendicular to each other.

[0107] In this way, the three driving units are connected in sequence, so that the motion seat 3 can move in six degrees of freedom, ensuring that the motion seat 3 moves according to the motion trajectory of the whole vehicle, thereby improving the reliability of the test results.

[0108] Specifically in this embodiment, the driving unit includes a base 41, a power mechanism 42, a screw-nut transmission unit 43 and a motion platform 44. The screw-nut transmission unit 43 includes a screw 431 and a nut 432 that are screwed to each other. The power mechanism 42 is installed on the base 41, the power mechanism 42 is connected to the screw 431, and the motion platform 44 is connected to the nut 432.

[0109] The first stopper 45 is provided with a first stopper mechanism 451. The first stopper mechanism 451 can move in a direction relatively close to or relatively far from the motion platform 44 and switch between a first position and a second position.

[0110] In the first position, the first limiting mechanism 451 abuts against the moving platform 44 to be relatively fixed, and the moving platform 44 can move along the axial direction of the screw rod 431 under the action of the power mechanism 42 and the screw rod and nut transmission unit 43.

[0111] In the second position, the first limiting mechanism 451 is disengaged from the motion platform 44, and the motion platform 44 can rotate around the axial direction of the screw rod 431 under the action of the power mechanism 42 and the screw rod and nut transmission unit 43;

[0112] The base 41 in the frontmost driving unit is connected to the mounting portion 1 , the motion platform 44 in the rearmost driving unit is connected to the motion seat 3 , and in two adjacent driving units, the motion platform 44 in the previous driving unit forms the base 41 in the next driving unit.

[0113] It should be noted that, in the driving portion 4, the end away from the moving seat 3 is defined as the front end, and the end close to the moving seat 3 is defined as the proximal end.

[0114] In this way, each driving unit can realize the movement of the moving seat 3 with two degrees of freedom, specifically:

[0115] When the moving seat 3 needs to rotate around the axial direction of the corresponding screw rod 431, the first limiting mechanism 451 is controlled to move in a direction relatively away from the corresponding moving platform 44, and the first limiting mechanism 451 and the corresponding moving platform 44 are separated from each other. Due to the screw connection between the screw rod 431 and the nut 432, and the corresponding moving platform 44 and the screw rod 431 are relatively fixed, the moving platform 44 can rotate synchronously with the screw rod 431 under the action of the power mechanism 42;

[0116] When the moving seat 3 needs to move axially along the corresponding screw rod 431, the first limiting mechanism 451 is controlled to move in a direction relatively close to the corresponding moving platform 44, and the first limiting mechanism 451 and the corresponding moving platform 44 abut against each other. Due to the screw connection between the screw rod 431 and the nut 432, under the action of the power mechanism 42, the moving platform 44 moves axially along the screw rod 431.

[0117] It can be seen that in the present invention, each driving unit can achieve two degrees of freedom of movement through a power mechanism 42, and the entire driving part 4 only needs three power mechanisms 42 to achieve six different degrees of freedom of movement, thereby realizing the motion control of the moving seat 3, with high control accuracy, simple structure and reduced cost.

[0118] The power mechanism 42 may be a driving motor. When the driving motor is a screw motor, the screw 431 in the screw-nut transmission unit 43 is a part of the driving motor.

[0119] The moving seat 3 can be fixed on the moving platform 44 in different ways, such as screw connection, welding, gluing, adsorption, clamping, bundling and the like.

[0120] like Figure 4 and Figure 5 As shown, in this embodiment, the motion platform 44 is provided with through holes at the corners, the motion platform 44 and the nut 432 are integrally formed, and the nut 432 is located at a position corresponding to the through holes.

[0121] like Figure 5 As shown, in this embodiment, the motion platform 44 is provided with a limiting hole 44a, and the free end of the first limiting mechanism 451 is provided with a protrusion, which can be inserted into the limiting hole 44a to achieve circumferential limitation of the motion platform 44, and the protrusion can also be removed from the limiting hole 44a, so that the motion platform 44 can achieve circumferential rotation.

[0122] Of course, in practical applications, it is also feasible that the moving platform 44 is not provided with the limiting hole 44 a , and the first limiting mechanism 451 and the moving platform 44 are pressed against each other to achieve abutment and fixation.

[0123] like Figure 4 and Figure 5 As shown, in this embodiment, the driving unit also includes a guide rail 46, a slider 47 that slides onto the guide rail 46, and a stopper 48. The guide rail 46 is fixed to the base 41. The extension direction of the guide rail 46 is consistent with the extension direction of the corresponding screw rod 431. The stopper 48 is fixedly connected to the slider 47. A stopper space is formed inside the stopper 48. The motion platform 44 is inserted into the stopper space. The motion platform 44 and the stopper 48 are mutually limited in the extension direction of the screw rod 431 and can move relatively in the circumferential direction of the screw rod 431. The first limiter 45 is relatively fixed to the slider 47.

[0124] In this way, the guide rail 46 plays a guiding role for the slider 47, and the stopper 48 plays a stopping role for the moving platform 44. When the moving platform 44 needs to move along the axial direction of the corresponding screw rod 431, since the moving platform 44 and the stopper 48 limit each other in the extension direction of the screw rod 431, the moving platform 44 can drive the slider 47 to move synchronously along the axial direction of the guide rail 46, so that the first limiter 45 maintains its relative position with the moving platform 44 unchanged, and the first limiter 45 can play its circumferential limiting or unlocking function; and when the moving platform 44 needs to move around the axial direction of the corresponding screw rod 431, the moving platform 44 can escape from the stopper space, and will not interfere with the circumferential movement of the moving platform 44.

[0125] Please continue to refer to Figure 4 and Figure 5 The driving unit also includes an extension rod 49, which is fixedly connected to the slider 47. The stop portion 48 includes two oppositely arranged stop plates 481. The two stop plates 481 are fixed to the upper and lower side walls of the extension rod 49. A stop space is formed between the two stop plates 481. The first limiter 45 is fixed to the extension rod 49.

[0126] like Figure 4 As shown, the driving unit further includes a second limiter 410, which is fixed to the slider 47. The second limiter 410 has a second limit mechanism 4101. The second limit mechanism 4101 can move in a direction relatively close to or relatively far from the guide rail 46 and switch between the third position and the fourth position.

[0127] When in the third position, the second limiting mechanism 4101 abuts against the guide rail 46 to be relatively fixed; when in the fourth position, the second limiting mechanism 4101 is disengaged from the guide rail 46.

[0128] In this way, the second limiting mechanism 4101 can play an axial limiting role on the slider 47. When the second limiting mechanism 4101 abuts against the guide rail 46, the second limiting mechanism 4101 and the guide rail 46 are relatively fixed. Since the second limiting mechanism 4101 and the slider 47 are relatively fixed, the slider 47 and the guide rail 46 are relatively fixed, and the slider 47 can no longer continue to slide; when the second limiting mechanism 4101 is disengaged from the guide rail 46, the second limiting mechanism 4101 and the guide rail 46 are relatively movable, so that the slider 47 can move along the axial direction of the guide rail 46.

[0129] In addition, as mentioned above, when the first limiting mechanism 451 is disengaged from the corresponding motion platform 44, the motion platform 44 can rotate synchronously with the screw 431 under the action of the power mechanism 42. However, in actual applications, the motion platform 44 still has the possibility of moving along the axial direction of the screw 431 under the action of inertia. Therefore, when the motion seat 3 needs to rotate around the axial direction of the corresponding screw 431, the second limiting mechanism 4101 can be controlled to abut against the guide rail 46 to limit the axial movement of the motion platform 44, ensuring that the motion platform 44 can only rotate synchronously with the screw 431.

[0130] The first limiter 45 and the second limiter 410 may be electromagnetic push-pull devices or electromagnetic pull-in switches or other similar structural parts.

[0131] like Figure 4 and Figure 5 As shown, the driving unit further includes two oppositely arranged fixing plates 411 , the guide rail 46 is connected between the two fixing plates 411 , the screw rod 431 is rotatably mounted between the two fixing plates 411 , and the power mechanism 42 is mounted on one of the fixing plates 411 .

[0132] It can be understood that in practical applications, the drive unit can also have other implementations, such as the drive unit includes two power mechanisms, the first power mechanism can realize the axial movement of the moving seat 3 along a certain direction, such as a cylinder / hydraulic cylinder / electric cylinder, etc.; the second power mechanism can realize the rotation of the moving seat 3 around the direction, such as a motor, etc. The second power mechanism is connected to the output end of the first power mechanism, and the moving platform 44 is connected to the output end of the second power mechanism. Of course, in this implementation, the drive unit needs six power mechanisms to realize the six-degree-of-freedom movement of the moving seat 3. Obviously, the setting method of the present application is a more preferred technical solution.

[0133] In addition, the whole vehicle pipeline motion test platform of the present invention can not only generate a three-dimensional motion envelope of the pipeline 01, but also be used to quickly evaluate whether there is a risk of interference wear between the pipeline 01 and surrounding parts during the use of the vehicle.

[0134] Based on this, the whole vehicle pipeline motion test platform of the present invention also includes a peripheral parts model sample. In the working state, the peripheral parts model sample is installed on the motion seat 3, or is relatively fixed to the mounting part 1, and the peripheral parts model sample is located at the preset position around the pipeline 01.

[0135] The preset position mentioned here means that the peripheral part model sample and the pipeline 01 should maintain the same relative position relationship as the existing design. When the peripheral parts and the pipeline 01 in the existing design are stimulated by the same motion source, the corresponding peripheral part model sample should be fixed on the motion seat 3; when the peripheral parts in the existing design are in a stationary state relative to the whole vehicle, the corresponding peripheral part model sample should be fixed relative to the mounting portion 1, and can be fixed on the mounting frame 12.

[0136] In the test for rapid assessment of interference wear risk, developer can be sprayed on the calibration points on the surface of pipeline 01 or the surrounding parts model sample, and the motion camera 5 can be used to check whether pipeline 01 and the surrounding parts model samples interfere with each other during the movement of pipeline 01, so as to determine whether there is a risk of interference wear between the two. If the three-dimensional motion envelope of the pipeline 01 movement process finally generated interferes with the boundary of the surrounding parts model sample, it means that pipeline 01 will interfere with the surrounding parts during the use of the vehicle, causing wear; otherwise, it means that pipeline 01 will not obviously interfere with the surrounding parts during the use of the vehicle.

[0137] The peripheral parts model samples can be fixed on the motion seat 3 or the mounting frame 12 by screwing, gluing, adsorption, clamping, bundling and other different methods.

[0138] The present invention also provides a whole vehicle pipeline motion test method, based on the above-mentioned whole vehicle pipeline motion test platform, comprising the following steps:

[0139] Step S1: Make pipeline 01 according to the whole vehicle pipeline design plan, and paste calibration points on pipeline 01;

[0140] Step S2: according to the whole vehicle pipeline design plan, the fixed seat 2 and the moving seat 3 are manufactured, the fixed seat 2 is installed on the installation part 1, the moving seat 3 is installed on the driving part 4, and the fixed seat 2 and the moving seat 3 are adjusted to the preset positions, and the pipeline 01 is installed on the fixed seat 2 and the moving seat 3, and the posture of the pipeline 01 is consistent with the whole vehicle pipeline design plan;

[0141] Step S3: Control the driving unit 4 to drive the motion seat 3 according to the motion trajectory of the vehicle, and turn on the motion camera 5 to record the motion trajectory of the pipeline 01;

[0142] Step S4: Read the recording results, and generate a three-dimensional motion envelope of the motion process of pipeline 01 based on the recording results.

[0143] The whole vehicle pipeline movement test method of the present invention is based on the above-mentioned whole vehicle pipeline movement test platform, and therefore has the same technical effect as the above-mentioned whole vehicle pipeline movement test platform, which will not be repeated here.

[0144] Wherein, step S3 specifically includes:

[0145] The vehicle motion parameters are input to the controller 7, which converts the vehicle motion parameters into control instructions of the drive unit 4 to control the drive unit 4 to drive the motion seat 3 according to the vehicle motion trajectory. After the controller 7 completes the specified output according to the setting, the operation of the controller 7 and the recording function of the motion camera 5 are stopped.

[0146] The whole vehicle pipeline motion test platform of the present invention can be used not only to simulate the motion of the pipeline 01 and generate a motion envelope, but also to evaluate whether there is a risk of interference wear between the pipeline 01 and surrounding parts during the use of the vehicle.

[0147] Based on this, the vehicle pipeline motion test method of the present invention is:

[0148] Step S2 also includes: making a peripheral part model sample, pasting calibration points on the peripheral part model sample, and adding the peripheral part model sample according to the actual relative relationship of the vehicle;

[0149] Step S4 also includes: generating boundary information of the surrounding part model sample based on the recording results.

[0150] Check the generated simulation results. If the three-dimensional motion envelope of the pipeline 01 motion process generated finally interferes with the boundaries of the surrounding parts model samples, it means that pipeline 01 will interfere with the surrounding parts during the use of the vehicle, causing wear; otherwise, it means that pipeline 01 will not obviously interfere with the surrounding parts during the use of the vehicle.

[0151] In addition, the vehicle pipeline motion test method of the present invention also includes:

[0152] Repeating steps S2 to S4, using the same pipeline 01 to generate a plurality of three-dimensional motion envelopes of the motion process of the pipelines 01, or using a plurality of pipelines 01 to generate a plurality of three-dimensional motion envelopes of the motion process of the pipelines and boundary information of the surrounding part model samples;

[0153] Or, in step S1, make multiple pipelines 01, repeat steps S2-S4, use multiple pipelines 01 to generate three-dimensional motion envelopes of the motion processes of multiple pipelines 01, or use multiple pipelines 01 to generate three-dimensional motion envelopes of the motion processes of multiple pipelines and boundary information of surrounding part model samples.

[0154] In the experiment of motion simulation of pipeline 01, multiple simulation experiments can be carried out with the same pipeline 01, or different pipelines 01 can be replaced to carry out multiple simulation experiments, and multiple three-dimensional motion envelopes of the motion process of pipeline 01 can be generated and input into the three-dimensional development software as reference values ​​of the motion space boundary required for pipeline 01. Such reference values ​​can further reduce the difference between the actual vehicle state and the design state of the pipeline caused by the production / assembly process.

[0155] In the test of evaluating whether there is a risk of interference wear between pipeline 01 and surrounding parts during vehicle use, multiple simulation experiments are carried out using the same pipeline 01, or multiple simulation experiments are carried out using different pipelines 01 to generate multiple three-dimensional motion envelopes of the pipeline 01 movement process and boundary information of the surrounding parts model samples, which can improve the reliability of the conclusion.

[0156] The above is a detailed introduction to a vehicle pipeline motion test platform and test method provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in several ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A whole vehicle pipeline motion test platform, the pipeline (01) has a fixed section and a moving section, characterized in that: The whole vehicle pipeline motion test platform includes: A mounting portion (1); A fixing seat (2) is movably mounted on the mounting portion (1) and can be fixed relative to the mounting portion (1) when adjusted to a preset position, the fixing seat (2) being used to fix the fixing section of the pipeline (01); A moving seat (3) and a driving part (4), wherein the moving seat (3) is used to fix the moving section of the pipeline (01), the driving part (4) is connected to the mounting part (1), the moving seat (3) and the driving part (4) are connected, and the driving part (4) can drive the moving seat (3) according to the movement trajectory of the whole vehicle; A motion acquisition unit, the motion acquisition unit is used to record the motion trajectory of the pipeline (01) and generate a three-dimensional motion envelope of the motion process of the pipeline (01) based on the recording result.

2. The vehicle pipeline motion test platform according to claim 1 is characterized in that: The motion acquisition unit comprises one or more motion cameras (5), wherein the motion cameras (5) are used to record the motion trajectory of the pipeline (01), and the arrangement directions of the plurality of motion cameras (5) are not completely the same.

3. The vehicle pipeline motion test platform according to claim 1 is characterized in that: The device also comprises an adjusting portion (6), the adjusting portion (6) comprising an adjusting bracket (61) and an adjusting block (62), the adjusting bracket (61) being movably mounted on the mounting portion (1), and the mounting position being adjustable along a first direction, the adjusting bracket (61) being able to be relatively fixed to the mounting portion (1) when adjusted to a preset position, the adjusting block (62) being movably mounted on the adjusting bracket (61), and the mounting position being adjustable along a second direction, the adjusting block (62) being able to be relatively fixed to the adjusting bracket (61) when adjusted to a preset position, and the fixing seat (2) being connected to the adjusting block (62); The first direction and the second direction are non-parallel.

4. The vehicle pipeline motion test platform according to claim 1 is characterized in that: The vehicle also comprises a controller (7), the controller (7) being electrically connected to the driving unit (4), the controller (7) having an input port for inputting the motion parameters of the vehicle, and the controller (7) being capable of converting the motion parameters of the vehicle into control instructions of the driving unit (4); The controller (7) is also electrically connected to other electrical devices except the driving unit (4).

5. The vehicle pipeline motion test platform according to any one of claims 1 to 4, characterized in that: The driving part (4) comprises three driving units connected in sequence, the driving unit at the front end is connected to the mounting part (1), and the driving unit at the rear end is connected to the moving seat (3). The three driving units act together to drive the moving seat (3) to move along a first moving direction or rotate around the first moving direction, or to move along a second moving direction or rotate around the second moving direction, or to move along a third moving direction or rotate around the third moving direction relative to the mounting portion (1). The first moving direction, the second moving direction and the third moving direction are perpendicular to each other.

6. The vehicle pipeline motion test platform according to claim 5 is characterized in that: The driving unit comprises a base (41), a power mechanism (42), a screw-nut transmission unit (43) and a motion platform (44); the screw-nut transmission unit (43) comprises a screw (431) and a nut (432) that are threadedly connected to each other; the power mechanism (42) is mounted on the base (41); the power mechanism (42) is connected to the screw (431); the motion platform (44) is connected to the nut (432); The device further comprises a first stopper (45), wherein the first stopper (45) has a first stopper mechanism (451), wherein the first stopper mechanism (451) is capable of moving in a direction relatively close to or relatively far from the motion platform (44), and switching between a first position and a second position. When in the first position, the first limiting mechanism (451) abuts against the moving platform (44) to be relatively fixed, and the moving platform (44) can move along the axial direction of the screw rod (431) under the action of the power mechanism (42) and the screw rod and nut transmission unit (43). When in the second position, the first limiting mechanism (451) is disengaged from the motion platform (44), and the motion platform (44) can rotate around the axial direction of the screw rod (431) under the action of the power mechanism (42) and the screw rod and nut transmission unit (43); The base (41) in the frontmost drive unit is connected to the mounting portion (1), the motion platform (44) in the rearmost drive unit is connected to the motion seat (3), and in two adjacent drive units, the motion platform (44) in the first drive unit forms the base (41) in the second drive unit.

7. The vehicle pipeline motion test platform according to claim 6 is characterized in that: The driving unit further comprises a guide rail (46), a slider (47) slidably mounted on the guide rail (46), and a stopper (48); the guide rail (46) is relatively fixed to the base (41); the extension direction of the guide rail (46) is consistent with the extension direction of the corresponding lead screw (431); the stopper (48) is fixedly connected to the slider (47); a stopper space is formed inside the stopper (48); the motion platform (44) is inserted inside the stopper space; the motion platform (44) and the stopper (48) are mutually limited in the extension direction of the lead screw (431); the motion platform (44) and the stopper (48) are relatively movable in the circumferential direction of the lead screw (431); and the first limiter (45) is relatively fixed to the slider (47).

8. The vehicle pipeline motion test platform according to claim 7 is characterized in that: The driving unit further comprises an extension rod (49), wherein the extension rod (49) is fixedly connected to the slider (47), the stop portion (48) comprises two stop plates (481) arranged opposite to each other, the two stop plates (481) are fixed to upper and lower side walls of the extension rod (49), the stop space is formed between the two stop plates (481), and the first limiter (45) is installed on the extension rod (49).

9. The vehicle pipeline motion test platform according to claim 7 is characterized in that: The driving unit further comprises a second limiter (410), wherein the second limiter (410) is fixed to the slider (47), and the second limiter (410) has a second limit mechanism (4101), and the second limit mechanism (4101) is capable of moving in a direction relatively close to or relatively far from the guide rail (46), and switching between a third position and a fourth position. When in the third position, the second limiting mechanism (4101) abuts against the guide rail (46) to be relatively fixed; when in the fourth position, the second limiting mechanism (4101) is disengaged from the guide rail (46).

10. The vehicle pipeline motion test platform according to any one of claims 1 to 4, characterized in that: It also includes a peripheral parts model sample. In the working state, the peripheral parts model sample is installed on the moving seat (3), or is relatively fixed to the mounting portion (1). The peripheral parts model sample is located at preset positions around the pipeline (01).

11. A vehicle pipeline motion test method, based on the vehicle pipeline motion test platform according to any one of claims 1 to 10, characterized in that: The steps include: Step S1: manufacturing a pipeline (01) according to the vehicle pipeline design plan, and pasting calibration points on the pipeline (01); Step S2: manufacturing a fixed seat (2) and a moving seat (3) according to the whole vehicle pipeline design plan, installing the fixed seat (2) on the installation part (1), installing the moving seat (3) on the driving part (4), adjusting the fixed seat (2) and the moving seat (3) to a preset position, installing the pipeline (01) on the fixed seat (2) and the moving seat (3), and the posture of the pipeline (01) is consistent with the whole vehicle pipeline design plan; Step S3: controlling the driving unit (4) to drive the moving seat (3) according to the moving trajectory of the whole vehicle, and turning on the moving camera (5) to record the moving trajectory of the pipeline (01); Step S4: reading the recording results, and generating a three-dimensional motion envelope of the motion process of the pipeline (01) based on the recording results.

12. The vehicle pipeline motion test method according to claim 11, characterized in that: Step S3 specifically includes: The motion parameters of the whole vehicle are input into a controller (7), and the controller (7) converts the motion parameters of the whole vehicle into control instructions for the drive unit (4), so as to control the drive unit (4) to drive the motion seat (3) according to the motion trajectory of the whole vehicle.

13. The vehicle pipeline motion test method according to claim 11, characterized in that: Step S2 also includes: making a peripheral part model sample, pasting calibration points on the peripheral part model sample, and adding the peripheral part model sample according to the actual relative relationship of the vehicle; Step S4 also includes: generating boundary information of the surrounding part model sample based on the recording result.

14. The vehicle pipeline motion test method according to claim 13, characterized in that: Also includes: Repeating steps S2 to S4, using the same pipeline (01) to generate a plurality of three-dimensional motion envelopes of the motion process of the pipeline (01), or using the same pipeline (01) to generate a plurality of three-dimensional motion envelopes of the motion process of the pipeline (01) and boundary information of the surrounding part model samples; Alternatively, in step S1, a plurality of pipelines (01) are produced, and steps S2 to S4 are repeatedly performed, and a plurality of pipelines (01) are used to generate a plurality of three-dimensional motion envelopes of the motion process of the pipelines (01), or a plurality of pipelines (01) are used to generate a plurality of three-dimensional motion envelopes of the motion process of the pipelines (01) and boundary information of the surrounding part model samples.

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