INTRODUCTION A smooth driving style that reduces the unnecessary consumption of gasoline and emission of exhaust gases by avoiding rapid acceleration and sudden braking has been recommended in recent years as a response to the growing severity of global environmental problems. Manufacturers of the latest environmental vehicles are also taking the initiative Makoto Yamakado, Dr. Eng. Junya Takah...

The accomplishments to date on the development of automatic vehicle control (AVC) technology in the Program on Advanced Technology for the Highway (PATH) at the University of California, Berkeley, are summarized. The basic prqfiiples and assumptions underlying the PATH work are identified, ‘followed by explanations of the work on automating vehicle lateral (steering) and longitudinal (spacing a...

Model based feedback control strategies for electrohydraulic braking and active steering systems in passenger cars are considered. Simulation results with a complex vehicle model and measurements from test drives with a real car are shown for brake control. For a μ-split road surface additional drive dynamics control is required like ESP or active front steering (AFS). Therefore, an AFS feedbac...

An increasing number of control systems in modern automotive vehicles is based on measurements of signals describing vehicle dynamics. Correspondingly, a large number of sensors is required. To spare on weight and even more important on costs, car manufacturers require joint processing of sensors, i.e. the individual sensors related to certain control systems should become part of a sensor netw...

Many kinds of mechanical systems such as a robot, a machine tool, a vehicle and so on have multi bodies which have the relative motion each other. When we develop the mechanical systems, it is important to predict the motion and the interaction forces before they are actually manufactured after the design. Also, multi flexible body dynamics can be necessary for some mechanical systems including...

Vehicle platooning provides avenues to improve road transportation. However, safely operate a vehicle platoon, stringent conditions, e.g., string stability, on the closed-loop platoon dynamics must be guaranteed. To meet such control specifications, linear longitudinal are usually assumed for design and imposed by using mid-level systems. disturbances model mismatches can limit compensation of ...

A model for the dynamics of a four rotor vertical take-off and landing (VTOL) vehicle known as an X4-flyer is proposed. The model incorporates the airframe and motor dynamics as well as aerodynamic and gyroscopic effects due to the rotors for quasi-stationary flight conditions. A novel control strategy is proposed for configuration stabilization of quasi-stationary flight conditions. The approa...