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International Journal of Automotive Engineering، جلد ۱۰، شماره ۴، صفحات ۳۴۴۶-۳۴۵۶
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی The Effect of Tire Pressure Changes on Braking Efficiency and Necessity of Adjusting Tire Pressure Before Braking Test at Vehicle Technical Inspection Centers
چکیده انگلیسی مقاله 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.  
کلیدواژه‌های انگلیسی مقاله Braking Efficiency, Stopping Distance, Adjusting Tire Pressure, Vehicle Safety, Vehicle Technical Inspection Centers
نویسندگان مقاله | Mahdi Ajami
Baran Vehicle Inspection Center


| Hossein Jannat
Department of Auto Mechanic, Shohada Technical College


| Masoud Masih-Tehrani
School of Automotive Engineering, Iran University of Science and Technology
نشانی اینترنتی http://www.iust.ac.ir/ijae/browse.php?a_code=A-10-380-1&slc_lang=en&sid=1
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