CN114184327A - Automobile inclination rain test method - Google Patents
Automobile inclination rain test method Download PDFInfo
- Publication number
- CN114184327A CN114184327A CN202111563968.1A CN202111563968A CN114184327A CN 114184327 A CN114184327 A CN 114184327A CN 202111563968 A CN202111563968 A CN 202111563968A CN 114184327 A CN114184327 A CN 114184327A
- Authority
- CN
- China
- Prior art keywords
- rain
- automobile
- posture
- degrees
- specified time
- 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.)
- Withdrawn
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
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention discloses an automobile inclined rain test method, which comprises the following steps: step 1, dismantling automotive interior: dismantling parts covering metal plates in the passenger compartment; step 2, a retroversion posture rain test: adjusting the posture of the automobile to an inclination angle of 8.5 degrees of backward tilting, opening a rain device with specified strength, and raining according to specified time; step 3, testing the forward-inclined posture in rain: adjusting the posture of the automobile to a forward-inclined angle of 8.5 degrees, opening a rain device with specified strength, and raining according to specified time; step 4, testing the right-leaning posture in rain: adjusting the posture of the automobile to an inclination angle of 5.7 degrees of right inclination, opening a rain device with specified strength, and raining according to specified time; step 5, left-inclined posture rain test: the posture of the automobile is adjusted to an inclination angle of 5.7 degrees, a rain device with specified strength is opened, and the automobile is drenched according to specified time. The invention can truly simulate the rain scene of the automobile in the extreme inclined posture on the normal road.
Description
Technical Field
The invention relates to the technical field of automobile rain tests, in particular to an automobile inclination rain test method.
Background
Rain-proof leakproofness is an important performance index of car, and the vehicle leaks not only influences the riding comfort, still can lead to other troubles, for example get into inside the panel beating leak and probably lead to the corrosion, and the leaking that gets into the floor can lead to the carpet to go mildy and stink, and the leaking that gets into air intake system can lead to the engine nest of lying prone, and the leaking that gets into electrical apparatus spare part can lead to the inefficacy of function etc. these problems influence vehicle outward appearance or function use gently, and the serious then influences the vehicle and goes and probably the incident appears. As the expectations of users for the performance of automotive products have become higher and higher, water tightness has become a fundamental requirement for automotive users. Most host computer factories carry out a great deal of design verification and offline inspection on the rain-proof sealing performance of vehicles in the development and mass production stages, rain detection becomes a part of the vehicle production line, and each vehicle passes through a rain line before leaving a factory to ensure that water is not leaked.
However, from the market expression, the water leakage of the vehicle exists all the time, and is one of the common failures of the automobile, and the water leakage is a common complaint word of automobile consumers according to the research and development on hot websites of automobile users, such as the automobile quality network, the automobile home, and the like. The water leakage problem of some vehicle types even directly develops into uncontrollable public opinion accidents, and the brand power and the sales volume are seriously hit. How these water leakage problems arise and how they escape from design verification and manufacturing acceptance has been the focus of our research.
Through research, it is found that in the current automobile design verification and manufacturing acceptance, when the rain-proof sealing performance of the vehicle is detected, the posture of the vehicle is always horizontal, and with the continuous strengthening of national infrastructure, the vehicle is more and more common in the inclined posture in the rain-proof sealing performance, such as parking on a curb, a steep slope or an inclined parking space, driving on an exit, a rugged mountain road, a steep mountain road and the like, in these scenes, the flowing path of water on the surface of the vehicle body is different from that in the horizontal posture, and the water may enter some areas which are not allowed to enter water but cannot be found in the rain-proof sealing performance detection in the horizontal posture.
Therefore, in order to ensure that the rain-proof sealing performance of the vehicle is fully verified, it is necessary to design an automobile inclination rain test method.
Disclosure of Invention
The invention aims to provide an automobile inclination rain test method which can truly simulate a rain scene of an automobile in an extreme inclination posture on a normal road.
The invention relates to an automobile inclined rain test method, which comprises the following steps:
step 1, dismantling automotive interior: dismantling parts covering metal plates in the passenger compartment;
step 2, a retroversion posture rain test: adjusting the posture of the automobile to an inclination angle of 8.5 degrees of backward tilting, opening a rain device with specified strength, and raining according to specified time;
step 3, testing the forward-inclined posture in rain: adjusting the posture of the automobile to a forward-inclined angle of 8.5 degrees, opening a rain device with specified strength, and raining according to specified time;
step 4, testing the right-leaning posture in rain: adjusting the posture of the automobile to an inclination angle of 5.7 degrees of right inclination, opening a rain device with specified strength, and raining according to specified time;
step 5, left-inclined posture rain test: the posture of the automobile is adjusted to an inclination angle of 5.7 degrees, a rain device with specified strength is opened, and the automobile is drenched according to specified time.
Optionally, in the steps 2 to 5, after the rain test is completed, the water leakage condition flowing into the passenger compartment is observed and recorded, after the rain test is completed, whether the functions of the automobile power system and the electrical system are normal is checked, and if the functions are abnormal, whether the abnormality is caused by water leakage is checked;
optionally, in the steps 2 to 5, the whole outer surface of the vehicle body can be covered by the projection area of the shower head of the rain device, and all doors and windows are closed.
Optionally, the prescribed time is 20 minutes.
The invention has the following advantages:
(1) the test method provided by the invention starts from the actual road design requirement, and can truly simulate the rain scene of the automobile in the extreme inclined posture which can be achieved on the normal road, so that the water leakage problem is found, the waterproof sealing performance of the automobile is ensured, and the market water leakage complaint can be effectively reduced or even eliminated.
(2) The test method provided by the invention is simple to operate, short in test period, less in required testers and low in requirement on the testers, and the test method can be mastered only by simple training and does not need long-time training.
Drawings
Fig. 1 is a schematic structural view of a rain device in the present embodiment;
FIG. 2 is a schematic structural diagram of a front and rear tilting device of a vehicle in this embodiment;
FIG. 3 is a schematic structural diagram of the full-vehicle left-right tilting device in this embodiment;
FIG. 4 is an assembly view of the rain device for tilting the entire vehicle forward and backward in this embodiment;
FIG. 5 is an assembly view of the left and right inclined rain unit of the entire vehicle in the present embodiment;
FIG. 6 is a rear-inclined rain posture diagram of the entire vehicle in the present embodiment;
FIG. 7 is a left-leaning rain gesture diagram of the whole vehicle in the present embodiment;
FIG. 8 is a flowchart of the present embodiment;
in the figure, 11-bracket, 12-water pipe, 13-nozzle, 21-base, 22-floor, 23-column, 31-slope board, 32-auxiliary driving board.
Detailed Description
The invention will be further explained with reference to the drawings.
Firstly, determining the inclination angle of a rain test vehicle:
JTG D20-2017 road route design Specification: the maximum gradient of road design is different according to different road grades, design hourly speed and region conditions, generally speaking, the gradient is limited according to vehicle speed, when the design vehicle speed is 120km/h, 100km/h, 80km/h, 60km/h, 40km/h, 30km/h and 20km/h, the limit value of the gradient is 3-10%, and the recommended maximum gradient value of snow cold regions is not more than 6%. From the above specification, if the automobile is driven on a normal road prescribed by the country or parked parallel to the road direction, the front-rear inclination angle should be not more than 10%, and if it is parked perpendicular to the road direction on the road surface, the left-right inclination angle should be not more than 10%, and the inclination angle of 10% is about 5.7 °.
JGJ 100-98 Specification of garage architectural design: the maximum straight ramp gradient of the ramp of the small-sized garage is 15 percent (1:6.67), and the maximum curve ramp gradient is 12 percent (1: 8.33). According to the above regulations, if the automobile runs at the normal garage entrance and exit according to the national regulations, the front and rear inclination angle should be not more than 15%, and the inclination angle of 15% is about 8.5 °.
Secondly, preparing and manufacturing a test device:
as shown in fig. 1, the main structure of the rain device used in this embodiment is composed of a bracket 11, a water pipe 12 and a nozzle 13. The average raining intensity of the whole raining device can be referred to as 12 +/-1 mm/min.
As shown in figure 2, the front and rear tilting device of the whole vehicle mainly comprises a base 21, a floor 22 and a column 23, wherein the included angle between the base 21 and the floor 22 is 8.5 degrees, and the front and rear tilting device of the whole vehicle is made of steel materials and can support at least 3000kg of weight.
As shown in fig. 3, the main structure of the tilting device is similar to that of the tilting device, and the main difference is that the floor is composed of a slope plate 31 and an auxiliary driving plate 32, the slope plate 31 mainly functions to realize the tilting of the vehicle, the included angle between the slope plate 31 and the bottom plate is 5.7 °, and the auxiliary driving plate 32 mainly functions to help the vehicle enter the slope plate.
Thirdly, a test method:
as shown in fig. 1, in this embodiment, an automobile oblique rain test method includes the following steps:
step 1, dismantling automotive interior: in order to ensure that the water leakage points in the passenger compartment can be observed, parts such as carpets and interior trimming panels covering metal plates in the passenger compartment are removed as much as possible.
Step 2, a retroversion posture rain test: as shown in fig. 4, the whole vehicle front and rear tilting device is placed inside the rain device, the vehicle enters the whole vehicle front and rear tilting device in the forward direction of the vehicle entering direction in fig. 2, as shown in fig. 6, the vehicle stops after the vehicle runs until the rear wheels completely enter the floor (even if the posture of the vehicle is adjusted to the tilting angle of 8.5 degrees backward), the outer surface of the whole vehicle body is ensured to be covered by the nozzle projection area of the rain device, all doors and windows are closed, the equipment is opened to rain for 20min, and the vehicle runs out after the completion.
Step 3, testing the forward-inclined posture in rain: the automobile reversely enters the front and rear tilting devices of the whole automobile according to the automobile entering direction in fig. 2, and stops after the rear wheels completely enter the floor (even if the posture of the automobile is adjusted to the tilting angle of forward tilting 8.5 degrees), the outer surface of the whole automobile body is ensured to be covered by the nozzle projection area of the rain-drenching device, all doors and windows are closed, the equipment is opened to drench for 20min, and the automobile exits after completion.
Step 4, testing the right-leaning posture in rain: as shown in fig. 5, the left and right tilting device of the whole vehicle is placed in the rain device, the vehicle enters the left and right tilting device of the whole vehicle in the forward direction of the vehicle in fig. 3, and as shown in fig. 7, the vehicle stops after the rear wheel completely enters the slope plate (even if the posture of the vehicle is adjusted to the tilting angle of 5.7 degrees of right tilting), the outer surface of the whole vehicle body is ensured to be covered by the projection area of the nozzle of the rain device, all doors and windows are closed, and the vehicle is driven out after the equipment is opened to be in rain for 20 min.
Step 5, left-inclined posture rain test: the automobile reversely enters the left and right tilting device of the whole automobile according to the driving direction of the automobile in the figure 3, and stops after a rear wheel completely enters a slope plate (even if the posture of the automobile is adjusted to an inclination angle of 5.7 degrees, the left tilting angle is adjusted), the outer surface of the whole automobile body is ensured to be covered by a nozzle projection area of a rain device, all doors and windows are closed, equipment is opened to be in rain for 20min, and the automobile is driven out after the rain is finished.
Fourth, test inspection and evaluation
1. Visual inspection: in the process of raining in each posture, an observer is required to be arranged in the passenger cabin, the water leakage flowing into the passenger cabin is observed in a visual inspection mode, the water leakage position is recorded by a camera, and a basis is provided for quality adjustment and improvement.
2. And (4) checking functions: for some parts which are not easy to disassemble, whether the inside of the parts leaks water or not cannot be observed, whether the parts are abnormal or not is confirmed in a functional check mode, and if the parts are abnormal, whether the parts are caused by water leakage or not is checked.
The foregoing is only a preferred embodiment of the present invention based on simplicity, rapidity and low cost, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. An automobile inclination rain test method is characterized by comprising the following steps:
step 1, dismantling automotive interior: dismantling parts covering metal plates in the passenger compartment;
step 2, a retroversion posture rain test: adjusting the posture of the automobile to an inclination angle of 8.5 degrees of backward tilting, opening a rain device with specified strength, and raining according to specified time;
step 3, testing the forward-inclined posture in rain: adjusting the posture of the automobile to a forward-inclined angle of 8.5 degrees, opening a rain device with specified strength, and raining according to specified time;
step 4, testing the right-leaning posture in rain: adjusting the posture of the automobile to an inclination angle of 5.7 degrees of right inclination, opening a rain device with specified strength, and raining according to specified time;
step 5, left-inclined posture rain test: the posture of the automobile is adjusted to an inclination angle of 5.7 degrees, a rain device with specified strength is opened, and the automobile is drenched according to specified time.
2. The method for testing the oblique raining of an automobile according to claim 1, wherein: in the steps 2 to 5, after the rain test is completed, the water leakage condition flowing into the passenger compartment is observed and recorded, whether the functions of the automobile power system and the electric system are normal or not is checked after the rain test is completed, and if the functions are abnormal, whether the abnormality is caused by water leakage or not is checked.
3. The automobile oblique rain test method according to claim 1 or 2, characterized in that: in the steps 2 to 5, the outer surface of the whole vehicle body can be covered by the projection area of the shower head of the rain device, and all doors and windows are closed.
4. The method for testing the oblique raining of an automobile according to claim 3, wherein: the specified time was 20 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111563968.1A CN114184327A (en) | 2021-12-20 | 2021-12-20 | Automobile inclination rain test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111563968.1A CN114184327A (en) | 2021-12-20 | 2021-12-20 | Automobile inclination rain test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114184327A true CN114184327A (en) | 2022-03-15 |
Family
ID=80605705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111563968.1A Withdrawn CN114184327A (en) | 2021-12-20 | 2021-12-20 | Automobile inclination rain test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114184327A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207300498U (en) * | 2017-09-21 | 2018-05-01 | 上海图南自动化设备有限公司 | A kind of multi-pose skylight is drenched with rain inclination angle test device |
| CN108225795A (en) * | 2018-04-06 | 2018-06-29 | 沈向红 | Between the salt fog test in automobile production workshop |
| CN109520675A (en) * | 2018-12-30 | 2019-03-26 | 重庆立洋机电设备制造有限公司 | Vehicle body multi-pose is drenched with rain test macro |
| CN211602430U (en) * | 2020-03-20 | 2020-09-29 | 广汽乘用车有限公司 | Automobile rain test equipment |
-
2021
- 2021-12-20 CN CN202111563968.1A patent/CN114184327A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207300498U (en) * | 2017-09-21 | 2018-05-01 | 上海图南自动化设备有限公司 | A kind of multi-pose skylight is drenched with rain inclination angle test device |
| CN108225795A (en) * | 2018-04-06 | 2018-06-29 | 沈向红 | Between the salt fog test in automobile production workshop |
| CN109520675A (en) * | 2018-12-30 | 2019-03-26 | 重庆立洋机电设备制造有限公司 | Vehicle body multi-pose is drenched with rain test macro |
| CN211602430U (en) * | 2020-03-20 | 2020-09-29 | 广汽乘用车有限公司 | Automobile rain test equipment |
Non-Patent Citations (2)
| Title |
|---|
| 刘东雷;: "整车淋雨漏水问题分析及控制", 汽车实用技术, no. 06, pages 105 * |
| 吴飞;李欣檬;付诚佳;: "新车型在开发过程中的汽车防雨密封性能验证探索", 汽车与驾驶维修(维修版), no. 06 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105575007A (en) | Intelligent self-service vehicle rental management system and method | |
| US20180121888A1 (en) | System and method for improved vehicle collision damage estimating and repair | |
| US20170293895A1 (en) | Device and method for calculating damage repair cost | |
| CN106557939B (en) | Motor vehicle detection system and method | |
| CN101086469A (en) | Automobile passive safety system collision experiment method | |
| KR20210086629A (en) | Apparatus and method for combined visual intelligence | |
| CN103057502B (en) | A kind of apparatus and method and automobile detecting vehicle instantaneous acceleration prompting automobile attitude | |
| US11669947B2 (en) | Machine learning assisted image analysis | |
| Kerrigan et al. | Test system, vehicle and occupant response repeatability evaluation in rollover crash tests: the deceleration rollover sled test | |
| US20220101661A1 (en) | Using sound to detect vehicle body anomalies | |
| Shadrin et al. | Testing procedures and certification of highly automated and autonomous road vehicles | |
| CN114184327A (en) | Automobile inclination rain test method | |
| JPWO2019049714A1 (en) | Management device, vehicle, inspection device, vehicle inspection system and its information processing method | |
| Beresnev et al. | Development of a detection road users system in vehicle A-pillar blind spots | |
| CN205140368U (en) | Real standard platform of car CAN -BUS bus system | |
| CN111651857B (en) | Method for designing rigidity of instrument panel | |
| CN111967129A (en) | Longitudinal obstacle avoidance verification method based on CarMaker simulation environment | |
| CN104417662A (en) | Body structure of motorcycle | |
| Zhao et al. | Whole car side impact mode and response evaluation | |
| CN114971123A (en) | Convenient and effective automobile evaluation method and system | |
| WO2023101478A1 (en) | Used automobile part transaction method and server | |
| Schöneburg et al. | The mercedes technology center for vehicle safety in Sindelfingen | |
| KR100847371B1 (en) | Condition inspection system of automobile performance | |
| Duboka | Considerations in forensic examination of automotive systems | |
| Corona | Numerical-experimental procedure to scan and measure the deformation patterns of honeycomb made barriers used in vehicle crash tests |
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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220315 |
|
| WW01 | Invention patent application withdrawn after publication |