The dynamics of a three-wheeled narrow-track tilting vehicle

Johan Berote, Auguste Van Poelgeest, Jocelyn Darling, Kevin A Edge, Andrew Plummer

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Abstract

Three-wheeled tilting vehicles have many potential advantages. They combine the comfort and safety of a car with the fuel economy, size and manoeuvrability of a motorcycle. One major challenge is to fully understand and account for the unusual dynamics of this type of vehicle. This paper sets out the equations of motion for a vehicle with single front and twin rear wheels and compares them with those of a car and a motorcycle. The mathematical model shows that it is necessary to introduce a tilt-dependent rear wheel steer term to obtain balanced handling characteristics. A vehicle with a hydraulically actuated tilting system is considered as a case study. As the tilt actuators act against the non-tilting engine module, this has significant effects on the cornering dynamics. Finally, the difference between the lateral acceleration and the hydraulic response time is shown to be a key issue.
Original languageEnglish
Publication statusPublished - Sep 2008
EventFISITA World Automotive Congress 2008 - Munich, Germany
Duration: 14 Sep 200819 Sep 2008

Conference

ConferenceFISITA World Automotive Congress 2008
CountryGermany
CityMunich
Period14/09/0819/09/08

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  • Cite this

    Berote, J., Van Poelgeest, A., Darling, J., Edge, K. A., & Plummer, A. (2008). The dynamics of a three-wheeled narrow-track tilting vehicle. Paper presented at FISITA World Automotive Congress 2008, Munich, Germany.