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Gear Shift Quality Benchmarking for Manual Transmissions
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English
Abstract
This paper describes the functions and features of synchroniser system used in manual transmissions. It gives the details of the mathematical relationships involved in the synchroniser operation. A program is made in C to predict the gear shift effort required at the hand ball for a given manual transmission. The effect of various synchro parameters namely coefficient of friction, cone angle, blocker angle, synchronising time on gearshift quality and performance of manual transmission is studied. Benchmarking of a transmission, designed for usage with higher-powered engine, is carried out with proven transmissions in the same application.
Citation
Krishnan, S., "Gear Shift Quality Benchmarking for Manual Transmissions," SAE Technical Paper 990041, 1999, https://doi.org/10.4271/990041.Also In
References
- Okazaki Yoichiro Komatsuzaki Kiyoshi “Double cone ayncronising with paper lining for medium duty trucks” SAE 902278
- Soch Richard J. Walters L.Kirk “Manual Transmission synchronisers” SAE 680008
- McNerney Gerald J. Szadkowski Andrew “Engineering method for rating shift quality” SAE 932996