Road for whole vehicle reinforced corrosion test

Abstract

The invention discloses a road for a whole vehicle reinforced corrosion test, which relates to the technical field of test roads, and comprises a mud road, which has a certain radian and a fan-shaped circle center formed by the radian; the gravel road and the slurry road are located in the same sector circle center and located on the inner side of the slurry road, so that a pavement structure with the arc length smaller than that of the slurry road is formed; the semi-closed dust hole is formed between the gravel road and the fan-shaped circle center, so that the semi-closed dust hole is combined with the slurry road and the gravel road side by side; and the acid soil is laid on the dust hole and the slurry road. The dust hole is semi-closed and contains specific component acid soil, and the driving scene of automobiles on earth roads in the European market is simulated. And meanwhile, the semi-closed dust hole is arranged, so that the influence of the external environment on the test sample vehicle during the test is avoided, and the test quality is improved. The gravel road and the slurry road with radians fill up the problem that the impact influence of gravel and slurry on the area below the vehicle body when the vehicle turns cannot be simulated by the previous linear road surface design, and the corrosion assessment is more comprehensive.

Description

[0001] A road for whole vehicle enhanced corrosion testing Technical Field This invention relates to the field of test road technology, and more specifically to a road for whole vehicle enhanced corrosion testing. Background Technology

[0002] Automotive corrosion testing refers to the testing of vehicles at a test track under conditions including driving on gravel roads, driving on salt water roads, salt spraying, and parking in an environmental chamber. The test conditions primarily simulate: driving on unpaved roads, driving on roads sprayed with de-icing agents, marine climates, and hot and humid climates. Currently, one test cycle involves nine test conditions (see below). Figure 2 The enhanced corrosion comprehensive road driving conditions include driving on gravel roads, brine washboard roads, and brine trough roads.

[0003] Current automotive corrosion testing methods are primarily based on Chinese automotive usage scenarios. However, European automotive usage scenarios, driving habits, and regulations differ significantly from those in my country. Currently, Chinese vehicles exported to Europe are still being tested using existing corrosion testing methods, which fail to accurately reproduce the corrosion problems encountered in the European market, leading to frequent complaints and fines related to vehicle corrosion. The technical challenges in resolving this issue mainly lie in the following aspects: (1) Study on the impact of specific soil properties in Europe on automobile corrosion (2) Research on the impact of harsh road conditions in Europe on automobile corrosion (3) Research on the impact of specific European car usage habits on automobile corrosion (4) Research on how to set and combine technical parameters for corrosion testing roads Therefore, this application proposes a road suitable for enhanced corrosion testing of whole vehicles in Europe. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing a road for enhanced corrosion testing of whole vehicles, thereby resolving the problems mentioned above.

[0005] This invention provides a road for enhanced corrosion testing of whole vehicles, comprising: A mud road has a certain curvature and a fan-shaped center formed by that curvature; The gravel road and the mud road are located at the same center of the sector and inside the mud road, so that they form a road surface structure with an arc length smaller than that of the mud road. The dust pit is located between the gravel road and the center of the fan-shaped circle, so that it is arranged in a parallel combination with the mud road and the gravel road; Acidic soil was laid on dusty holes and muddy roads.

[0006] Preferably, the dust pit has a semi-enclosed structure. The acidic soil lining the dust pit comprises talc, kaolin, humic acid, chernozem, and podzolic soil. Talc accounts for 39-56% of the weight of the acidic soil. Kaolin, humic acid, chernozem, and podzolic soil account for 44-61% of the weight of the acidic soil.

[0007] Preferably, the acidic soil used for paving mud roads comprises kaolin, chernozem, brown soil, and podzolic soil. Podzolic soil accounts for 30-45% of the weight of the acidic soil. Kaolin, chernozem, and brown soil account for 55-70% of the weight of the acidic soil.

[0008] Preferably, the curvature of the mud road is 30-35°; the curvature of the gravel road is 26-33°. The width of the mud road is 5-5.5m; the width of the gravel road is 5.5-6.5m. The inner arc length of the mud road is 80-100m, and the inner arc length of the gravel road is 70-90m.

[0009] Compared with existing technologies, it has the following beneficial effects: (1) A semi-enclosed dust pit containing acidic soil with specific components simulated the driving scenario of cars on dirt roads in the European market. At the same time, the semi-enclosed setting avoided the influence of the external environment on the test vehicle during the test, thus improving the test quality.

[0010] (2) The gravel road surface with a specific curvature better simulates the driving scenario of cars in the European market on unpaved roads.

[0011] (3) A mud road with a specific curvature and acidic soil containing specific components was used to simulate the driving scenario of cars in the European market during winter.

[0012] (4) The parallel arrangement of mud roads, gravel roads and dust pits improves the quality of the test process and reduces the impact of other factors on the test process when the vehicle is driving on the intersection of the road surface (when the three types of road surfaces are dispersed).

[0013] (5) Curved gravel and mud roads fill the gap that the previous straight road design could not simulate the impact of gravel and mud on the underside of the vehicle body when the vehicle turns, making the corrosion assessment more comprehensive. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only preferred embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1This is a schematic diagram of the road used in the present invention for enhanced corrosion testing of whole vehicles; Figure 2 This invention relates to the existing reinforced corrosion comprehensive road driving conditions; Figure 3 This is a schematic diagram of the road used in the whole vehicle enhanced corrosion test according to the present invention. Figure 2 .

[0016] In the picture, 1-mud road; 2-gravel road; 3-dust cave. Detailed Implementation

[0017] To better understand the structure, functional features, and advantages of the present invention, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings: Example 1: like Figure 1 and Figure 3 As shown, the present invention provides a road for whole vehicle enhanced corrosion testing, comprising: Mud road 1 has a certain curvature and a fan-shaped center formed by that curvature; The gravel road 2 is located at the same center of the sector as the mud road 1 and inside the mud road 1, so that it forms a road surface structure with an arc length smaller than that of the mud road 1. Dust hole 3 is located between gravel road 2 and the center of the fan-shaped circle, so that it is arranged in parallel with mud road 1 and gravel road 2, which reduces the driving on the connecting road surface and improves the quality of the test process; Acidic soil was laid on Dust Cave 3 and Mud Road 1.

[0018] Specifically, such as Figure 3 As shown, the mud road 1, gravel road 2, and dust hole 3 of the present invention can be provided with bypass sections or ring road sections at both ends to enable vehicles to quickly connect on the three roads. Acidic soil can be laid on the bypass section or ring road section to reduce the influence of external factors.

[0019] See Figure 1 The curvature of the mud road 1 is 30-35°; the curvature of the gravel road 2 is 26-33°, preferably 33°.

[0020] See Figure 1 The width of the mud road 1 is 5-5.5m, preferably 5.25m; the width of the gravel road 2 is 5.5-6.5m, preferably 5.9m.

[0021] See Figure 1 The inner arc length of the mud road 1 is 80-100m, preferably 90m; the inner arc length of the gravel road 2 is 70-90m, preferably 80m.

[0022] Through multiple rounds of parallel verification data analysis at the vehicle and component levels, it can be seen that the present invention can accurately reproduce the automotive usage scenarios in the European market, and the corrosion problems exposed have a consistency of up to 83% with the corrosion problems of vehicles in service in the market.

[0023] Example 2: As another embodiment of the present invention, such as Figure 2 As shown, dust pit 3 is a semi-enclosed structure. The acidic soil filling dust pit 3 consists of talc, kaolin, humic acid, chernozem, and podzolic soil. Talc accounts for 39-56% of the weight of the acidic soil. Kaolin, humic acid, chernozem, and podzolic soil account for 44-61% of the weight of the acidic soil.

[0024] This embodiment adds specific acidic soil inside the semi-enclosed dust hole 3 to simulate the driving scenario of European market cars on dirt roads. It also effectively simulates the driving scenario of European market cars on unpaved roads.

[0025] Example 3: In another embodiment of the present invention, the acidic soil paved on the mud road 1 comprises kaolin, chernozem, brown soil, and podzolic soil. The podzolic soil accounts for 30-45% of the weight of the acidic soil. The kaolin, chernozem, and brown soil account for 55-70% of the weight of the acidic soil. This embodiment can effectively simulate the winter driving scenario for cars in the European market.

[0026] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any way. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of the present invention without departing from the scope of the present invention are within the protection scope of the present invention.

Claims

1. A road for whole-vehicle enhanced corrosion testing, characterized in that... ,include: The mud road (1) has a certain curvature and a fan-shaped center formed by that curvature; The gravel road (2) is located at the same sector center as the mud road (1) and inside the mud road (1) so that it forms a road surface structure with an arc length smaller than that of the mud road (1); Dust hole (3) is located between the gravel road (2) and the center of the fan-shaped circle, so that it is arranged in a parallel combination with the mud road (1) and the gravel road (2); Acidic soil was laid on the dust hole (3) and the mud road (1).

2. The road used for enhanced corrosion testing of whole vehicles according to claim 1, characterized in that, The dust hole (3) is a semi-enclosed structure.

3. The road used for enhanced corrosion testing of whole vehicles according to claim 2, characterized in that, The acidic soil laid in the dust hole (3) consists of talc, kaolin, humic acid, black calcium soil and podzolic soil.

4. The road used for enhanced corrosion testing of whole vehicles according to claim 3, characterized in that, The talc powder accounts for 39-56% of the weight of the acidic soil; the kaolin, humic acid, black calcium soil and podzolic soil account for 44-61% of the weight of the acidic soil.

5. The road used for enhanced corrosion testing of whole vehicles according to claim 1, characterized in that, The acidic soil used in the mud road (1) consists of kaolin, black calcium soil, brown soil and podzolic soil.

6. The road used for whole-vehicle enhanced corrosion testing according to claim 5, characterized in that, The weight percentage of the podzolized soil is 30-45% of that of the acidic soil.

7. The road for whole-vehicle enhanced corrosion testing according to claim 6, characterized in that, The kaolin, black calcareous soil, and brown soil constitute 55-70% of the weight of the acidic soil.

8. The road used for enhanced corrosion testing of whole vehicles according to claim 1, characterized in that, The width of the mud road (1) is 5-5.5m; the width of the gravel road (2) is 5.5-6.5m.

9. The road for whole-vehicle enhanced corrosion testing according to claim 8, characterized in that, The inner arc length of the mud road (1) is 80-100m, and the inner arc length of the gravel road (2) is 70-90m.

10. The road for whole-vehicle enhanced corrosion testing according to claim 9, characterized in that, The arc of the mud road (1) is 30-35°; the arc of the gravel road (2) is 26-33°.

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