دوره 10، شماره 4 - ( 9-1399 )                   جلد 10 شماره 4 صفحات 3456-3446 | برگشت به فهرست نسخه ها


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Ajami M, Jannat H, Masih-Tehrani M. The Effect of Tire Pressure Changes on Braking Efficiency and Necessity of Adjusting Tire Pressure Before Braking Test at Vehicle Technical Inspection Centers. ASE 2020; 10 (4) :3446-3456
URL: http://www.iust.ac.ir/ijae/article-1-486-fa.html
The Effect of Tire Pressure Changes on Braking Efficiency and Necessity of Adjusting Tire Pressure Before Braking Test at Vehicle Technical Inspection Centers. Automotive Science and Engineering. 1399; 10 (4) :3446-3456

URL: http://www.iust.ac.ir/ijae/article-1-486-fa.html


چکیده:   (5982 مشاهده)
Braking test is one of the most important tests of a mechanized technical inspection line. In this study, the effect of tire pressure changes on the accuracy of the braking test results is investigated at technical inspection centers. This study is conducted in three stages. In the first step, the braking efficiency at different tire pressures is examined using a roller brake tester. In the second step, the tests at different pressures and velocities on the road are done. These tests are carried out in terms of stopping distance, to ensure the accuracy and reliability of the first step test results. The results of the first and second steps showed that the effect of tire pressure changes on the braking efficiency is significant. In the third step, the braking test results of a thousand vehicles that received technical inspection certificate are studied. Analysis of these results, considering the results of the first and second steps cleared that about 16% of vehicles that received technical inspection certificate have lower braking efficiency than the minimum acceptable efficiency. The obtained results specified the necessity of adjusting the pressure of tires before the braking test at vehicle technical inspection centers in Iran.
 
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نوع مطالعه: پژوهشي | موضوع مقاله: برق خودرو

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