Four-wheel steering, 4WS, also called rear-wheel steering or all-wheel steering, provides a means to actively steer the rear wheels during turning maneuvers. It should not be confused with four-wheel drive in which all four wheels of a vehicle are powered. It improves handling and help the vehicle make tighter turns.

Production-built cars tend to understeer or, in few instances, oversteer. If a car could automatically compensate for an understeer/oversteer problem, the driver would enjoy nearly ....etc

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Abstract
This paper develops a trajectory planning algorithm for a
four-wheel-steering (4WS) vehicle based on vehicle
kinematics. The flexibility offered by the steering is
utilized fully in the trajectory planning. A two-part
trajectory planning algorithm consists of the steering
planning and velocity planning. The limits of vehicle
mechanism and drive torque are taken into account.
Simulation results are presented to illustrate the
application of the proposed algorithm.
Introduction
Research works on Autonomous ....etc

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The front wheel steering system of conventional vehicle fails to keep the vehicle stable at high speeds and prove futile for heavy vehicles like tracks and trailers, especially in tight space. But if the rear wheels too could be steered, manoeuvrability of the vehicle will be enhanced. This results in the evolution Four-wheel steering (4WS). In 4WS, rear wheel are also steered in combination with the front wheels. This system helps in achieving superior cornering stability, improved steering responsiveness and precision, high -speed straight-li ....etc

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AUTOMATED VEHICLE STEERING CONTROL

Continuous pulse width RADAR tracking
and
Vision Sensing using Image processing tools
Abstract

The spark for this paper, AUTOMATED VEHICLE STEERING CONTROL (AVSE), struck while working over Adaptive Cruise Control (ACC) of automobiles, which is an autonomous control over the throttle at the set value at a safe distance from the vehicles running ahead in a lane.

In t ....etc

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ABSTRACT
Steering and braking are the most critical safety factors in vehicular control. Safe operation of the vehicle demands that the operator be able to maintain absolute control of the vehicleâ„¢s critical operating dynamics:
(1) Control of the direction of motion of the vehicle (steering)
(2) Control of the velocity of the vehicle, i.e. the ability to slow and fully
stop the vehicle (braking)
This presentation provides an overview of electric assisted vehicular
ste ....etc

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This Examination Thesis was done at the Blekinge Institute of Technology of Karlskrona. The work is a part of the education to Bachelor of Science in product development.The task consists of changing the steering wheel transmission of the DYNAPAC CA soil compactor machine made by Svedala Compaction Equipment AB.During the work we have followed the Fredy Olsson product development method. The work is divided in two parts: The Concept phase and The Primary Construction phase.In the Concept phase we first defined the project. After that we did in ....etc

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