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:: Volume 66, Issue 66 (Spring 2022 2022) ::
Vol.66 No. 66 pp. 36-45 Back to browse issues page
Optimization of car gearbox conversion ratios based on providing maximum traction in different gears
Abstract:   (706 Views)
The purpose of this paper is to optimize the gearbox conversion ratios of vehicles and the gearbox gear ratios are calculated in such a way that the engine provides the maximum possible traction, thus providing the maximum slope force with respect to the stability condition. First, the gearbox conversion ratios are determined by considering the type of vehicle and the appropriate calculation method. Then the gear conversion ratios are changed so that, considering the stability condition, the traction force diagram in the gears is as close as possible to the ideal traction force diagram and the uncovered parts are less in the ideal traction force diagram and the actual middle gear diagram. This is done for a two-stage gearbox with two intermediate axles, which is located in the transmission line with a diesel engine. The obtained results show that with the optimization of the gearbox, the rate of improvement of traction force in the maximum case is 17.5%, slope 16.3%, acceleration 17.2% and torque 13.5% in 3rd gear. Comparisons made for validation with a base vehicle also show a good agreement between the base vehicle and the vehicle in this study.
 
Article number: 3
Keywords: Gearbox, engine, optimization, traction force, stability condition
Full-Text [PDF 1304 kb]   (177 Downloads)    
Type of Study: Research Study | Subject: Other Engine Systems (Radiator, Gearbox, ...)
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Optimization of car gearbox conversion ratios based on providing maximum traction in different gears. JER 2022; 66 (66) :36-45
URL: http://engineresearch.ir/article-1-808-en.html


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Volume 66, Issue 66 (Spring 2022 2022) Back to browse issues page
فصلنامه تحقیقات موتور The Journal of Engine Research
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