A wind speed and direction test device and test method based on vehicle road sliding test under high wind speed
A technology of wind speed, wind direction, and testing device, which is applied in the direction of measuring device, speed/acceleration/shock measurement, fluid velocity measurement, etc. It can solve the problems of no sensor installation, large data error, and torrent formation, so as to avoid distortion, light weight, The effect of reducing the impact
Active Publication Date: 2018-06-08
ANHUI AGRICULTURAL UNIVERSITY
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Problems solved by technology
[0005] In addition, there are currently some wind speed sensors on the market, but none of them are installed outside the car body.
As a test experiment, we have also analyzed the installation of the speed sensor bracket at the position of the engine compartment cover of the car, and found that the turbulent flow is large, and the air flow is obviously blocked at the sensor mounting bracket, which will form a torrent, which will produce a huge impact in the car sliding road test. Influence, and in the final analysis of the test data, the data error is large, it is not a good test device and test method for the car road sliding test
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[0040] In this example, if figure 1 As shown, the wind speed and wind direction test device for the vehicle road sliding test under high wind speed includes: wind speed and direction sensor 1, level meter 2, drawbar 3, fixed bracket 4, connector 5, first GPS mobile antenna 6 and second GPS mobile antenna 7;
[0041] A fixed bracket 4 is provided in the trailer hole on the top of the front of the vehicle. Due to the rapid acceleration or shifting of the test vehicle during the sliding test process, unfavorable phenomena such as bracket vibration will occur, so the fixed bracket 4 is pre-tightened and fixed in the center of the trailer hole; Such as Figure 1aAs shown in enlargement, the connector 5 is set on the fixing bracket 4, wherein the connector 5 is an aluminum profile, and is provided with threaded holes, and three grooves are arranged on the outer surface of the fixing bracket 4; the positions of the grooves are the same as those of the screw holes. Correspondingly, ...
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The invention discloses a wind speed and wind direction testing device based on a maximum wind speed downhill path coasting test and a testing method thereof. The wind speed and wind direction testing device based on the maximum wind speed downhill path coasting test comprises a wind speed and wind direction sensor, a leveling instrument, a draw bar, a fixed support, a connector and a dual global position system (GPS) mobile antenna, wherein the fixed support is fixedly pre-tightened in a test car trailer hole, an aluminum profile connector is sleeved on the fixed support, the draw bar is welded on one side of the aluminum profile connector, the draw bar is provided with the wind speed and wind direction sensor, and the dual GPS mobile antenna obtains a measuring position of the wind speed and wind direction sensor on the draw bar, thereby obtaining maximum wind speed downhill path coasting wind speed. The wind speed and wind direction testing device based on the maximum wind speed downhill path coasting test is safe, steady, convenient and practical, has high test precision, and is suitable for different maximum wind speed downhill path coasting tests of various cars.
Description
technical field [0001] The invention belongs to the field of automobile control and detection, and more specifically relates to a wind speed and wind direction testing device and a testing method for a road sliding test of an automobile. Background technique [0002] The road sliding ability of a car is an important performance of a car, which comprehensively reflects the impact of the chassis running resistance and shape structure on the power and economy of the car. At present, the sliding resistance of automobiles is mainly determined based on road tests, but the road test process will be limited and affected by wind speed and direction conditions, and the test accuracy and consistency of test results are not high. [0003] my country's automobile sliding test standard GB / T 12536-90 and automobile road test method standard GB / T12534-90 have standardized the test conditions for the sliding test and the preparation of the vehicle before the test. Among them, the experiment...
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IPC IPC(8): G01P5/24G01P13/02
CPCG01P5/24G01P13/02
Inventor 张小龙程琳吴媞王丽丁文俊王恒陈鑫
Owner ANHUI AGRICULTURAL UNIVERSITY