Driver behavior and vehicle-road kinematics have been shown to change over prolonged periods of driving; however, the interaction between these two indices has not been examined. Here we develop a measure that examines how drivers turn the steering wheel relative to heading error velocity, which the authors call the relative steering wheel compensation (RSWC). The RSWC transiently changes on a ...

Automotive vehicle velocity estimation based only on steering angle and angular wheel velocity measurements is considered in the paper at hand. The approach is based on stationary Kalman filter design combined with a suitable preprocessing of the wheel velocity signals. A detailed assessment of the results by comparison with measured data is given. Possible applications include hierarchical mon...

Autonomous and semi-autonomous full-sized ground vehicles are becoming increasingly important, particularly in military applications. Here we describe the instrumentation of one such vehicle, a 4-wheel drive Hummer, for autonomous robotic operation. Actuators for steering, brake, and throttle have been implemented on a commercially available Hummer. Control is provided by on-board and remote co...

Production cars are designed to understeer and rarely do they oversteer. If a car could automatically compensate for an understeer/oversteer problem, the driver would enjoy nearly neutral steering under varying operating conditions. Four-wheel steering is a serious effort on the part of automotive design engineers to provide near-neutral steering. Also in situations like low speed cornering, ve...

In this paper, analysis for reducing lateral forces is implemented by using a railway vehicle model on a sharp curved track. Also, in order to minimize some problems when a railway vehicle runs on a sharp curved track, an active-steering bogie system is investigated. An active steering bogie system of a railway vehicle is designed to alleviate contact forces and to decrease wear of wheel/rail i...

The paper presents the modeling and control design of a variable-geometry suspension system, which is applied as independent wheel steering for in-wheel electric vehicles. The variablegeometry suspension modifies the tilting of the wheel, which has an effect on the steering of the wheels through the variation of the scrub radius. In the paper the model of the suspension-steering system and the ...

This paper presents analytical models to investigate the steering maneuvers of planetary exploration rovers on loose soil. The models are based on wheel-soil interaction mechanics, or terramechanics, with which the traction and disturbance forces of a wheel are evaluated for various slip conditions. These traction forces are decomposed into the longitudinal and lateral directions of the wheel. ...

Road departures account for nearly one-third of all fatal crashes. Lane departure warning (LDW) and lane departure prevention (LDP) have the potential to mitigate the number of crashes and fatalities that result from road departure crashes. The objective of this study was to predict the effectiveness of LDW and LDP in preventing road departure crashes if all vehicles in departure crashes in the...

background isolated small gut mesentery injury after blunt abdominal trauma from the steering wheel in road traffic accidents is rare. these are always challenging to diagnose and pose a diagnostic dilemma. objectives to study the pattern of small gut mesenteric injury by steering wheel blunt abdominal trauma in road traffic accidents in patients who had laparotomy. patients and methods a 10-ye...