The most important aspect of constructions of vehicles is safety. In motorcycles, in contrast to cars is not common to use elements of passive safety which minimalize consequences of collision. Therefore the most important is to ensure the proper possibility to avoid crash that is the adequate level of active safety which is mostly the brake system. It is often assisted by the construction whic...

In order to implement electronically variable dynamics for vehicle handling, the control system requires an accurate knowledge of the vehicle states as well as a means of actuation to precisely influence the vehicle’s motion. Steer-by-wire capability conveniently addresses both of these requirements. This paper first presents an approach to estimating vehicle sideslip angle using steering torqu...

Individually-controlled electric motors provide opportunities for enhancing the handling characteristics and energy efficiency of fully electric vehicles. Online power loss minimisation schemes based on electric motor efficiency data may, however, be impractical for real-time implementation due to the heavy computational demand. In this paper, the optimal wheel torque distribution for minimal p...

The conventional vehicles in the past had consisted of mechanical differential which converts the engine torque in to two directions. Due to the introduction of electric vehicle the vehicle propulsion system has changed from combustion engine to electric motor. Since the concept of differential is a must have component to drive a vehicle, it is still used in electric vehicles as well. Common me...

As far as the system of two-wheeled machine is concerned, incorporating a linear actuator to the intermediate body (IB) of two wheeled vehicles has not presented in literature before. This paper investigates development, modeling and control of a novel design of a two wheeled vehicle with additional mobility features allowing an attached payload to move vertically while maintaining the entire s...

In this paper, the effects of roll center height of McPherson suspension mechanism on dynamic behaviour of a vehicle are first studied, and then the optimum location of roll center of this suspension system is determined for a conceptual Class A vehicle. ADAMS/Car software was used for the analysis of vehicle dynamic behaviour in different positions of suspension roll center. Next, optimization...

It has been shown recently that the shimmy motion of towed wheels can be predicted in a wide range of parameters by means of the so-called memory effect of tyres. This delay effect is related to the existence of a travelling-wave-like motion of the tyre points in contact with the ground relative to the wheel. This study shows that the dynamics within the small-scale contact patch can have an es...

The article presents the methodologies based on multi-body systems used to analyze the dynamics of rail vehicle in motion in a straight line. Study of the railway vehicles dynamics requires the creation of three mutually independent models: the model of the vehicle, the track model and a model of the wheel – rail contact. A railway vehicle model developed in the multi-body systems convention w ...

A study pointed out that the delay time of driver's nervous system has a significant effect on roll stability vehicle. However, existing researches vehicle rollover prevention control rarely consider influence driver factors stability. Aiming at this problem, and path tracking strategy considering in loop is proposed to assist different types drivers. It includes supervisory decision layer exec...