Simos A. Evangelou

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This paper studies the influence of road camber on the stability of single-track road vehicles. Road camber changes the magnitude and direction of the tire force and moment vectors relative to the wheels, as well as the combined-force limit one might obtain from the road tires. Camber-induced changes in the tire force and moment systems have knock-on(More)
dvances in modeling bicycle and motorcycle dynamics are providing improved understanding of the principal modes of motion under straight-running and steady-state cornering conditions; see, for example , [1] and the references therein. These studies show that under certain operating conditions, some of the machine's modes can be lightly damped or even(More)
This paper introduces the idea of using mechanical steering compensators to improve the dynamic behavior of high-performance motorcycles. These compensators are seen as possible replacements for a conventional steering damper and comprise networks of springs, dampers, and a less familiar component called the inerter. The inerter was recently introduced to(More)
— Using a first-principles approach, the constituent components of a series hybrid electric car are modelled and integrated to form an overall coupled dynamic model. Controllers for the individual components are constructed, and are combined with a load follower supervisory controller and driver model to enable simulation of the vehicle under general(More)
Cornering weave oscillations associated with high performance motorcycles operating at high speeds, can be reduced by controlling the geometry of the rear suspension. A conventional monoshock rear suspension arrangement is modified and extended in a way that variations of the leverage ratio between the spring damper unit and road wheel are possible by an(More)
— This paper develops an indirect optimal control methodology to achieve green driving optimisation for series hybrid electric vehicles. Starting from a given vehicle mission, specified in terms of a road journey that has to be completed in a given amount of time, the power sharing among the powertrain sources and the vehicle speed profile along the journey(More)
Burst oscillations can arise in racing motorcycles under a combination of high speeds, low roll angles and firm acceleration. This bursting occurs at weave-mode frequencies under conditions that cause the classical wobble and weave modes interact. Under race conditions this phenomenon can undermine rider confidence, and is consequently detrimental to lap(More)