Smart start-stop system for a camless engine employing rotary valves

Ishmael Zibani, Joseph Chuma, Rapelang Marumo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A start-stop system (SSRE) is proposed for a newly designed camless rotary valve engine. The system is an improvement on the Mazda's Smart Idle Stop System (SISS), a start-stop technology considered to be one of the best in the industry. Both systems prevents engine idling by leveraging the principles of the direct fuel-injection engine, bringing about 10% improvement in fuel economy and fast restarting without sacrificing driving comfort. The SISS requires a starter motor to halt pistons in the optimum position when the engine is stopped. For the proposed system, there are no such requirements since the ignition system is independent of piston position. The system works best with engines having 6 pistons or more since then the system is able to identify at least one piston in the power stroke. The system has been successfully designed and programmed onto an ALTERA EPM7064SLC44-5 FPGA device.

Original languageEnglish
Title of host publicationProceedings of the IASTED International Conference on Modelling and Simulation, AfricaMS 2014
PublisherACTA Press
Pages184-191
Number of pages8
ISBN (Electronic)9780889869738
DOIs
Publication statusPublished - 2014
Event5th IASTED International Conference on Modelling and Simulation, AfricaMS 2014 - Gaborone, Botswana
Duration: Sep 1 2014Sep 3 2014

Other

Other5th IASTED International Conference on Modelling and Simulation, AfricaMS 2014
CountryBotswana
CityGaborone
Period9/1/149/3/14

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All Science Journal Classification (ASJC) codes

  • Ecological Modelling

Cite this

Zibani, I., Chuma, J., & Marumo, R. (2014). Smart start-stop system for a camless engine employing rotary valves. In Proceedings of the IASTED International Conference on Modelling and Simulation, AfricaMS 2014 (pp. 184-191). ACTA Press. https://doi.org/10.2316/P.2014.813-023