Results 141 to 150 of about 277 (171)

Design of an active 4ws system with physical uncertainties

Control Engineering Practice, 1995
Abstract In this paper a new approach to the design of an active four-wheel-steered (4WS) control system is introduced. The problems of the conventionally used LQ-controller-based virtual model following control strategies are analyzed, and several problems are addressed.
L. Gianone, L. Palkovics, J. Bokor
openaire   +1 more source

Proposal of active information supplement platform based on 4W information

2012 IEEE/SICE International Symposium on System Integration (SII), 2012
This paper proposes, for the purpose of offsetting the limited capability of the heterogeneous sensors stationed in the environment to collect the user information, the active information supplement framework. In this framework, the communication robots used for offering services to users are utilized as new sensors to actively collect user information
Yukihiro Nakamura, Shin-yo Muto, Manabu Motegi, Makoto Mizukawa   +3 more
openaire   +1 more source

Optimized coordination of brakes and active steering for a 4WS passenger car

ISA Transactions, 2012
Optimum coordination of individual brakes and front/rear steering subsystems is presented. The integrated control strategy consists of three modules. A coordinated high-level control determines the body forces/moment required to achieve vehicle motion objectives.
Ali, Tavasoli, Mahyar, Naraghi, Heman, Shakeri   +2 more
openaire   +2 more sources

The 4W (What-Where-When-Who) Project Goes Social

2012 Sixth International Conference on Innovative Mobile and Internet Services in Ubiquitous Computing, 2012
The 4W (What-Where-When-Who)project has demonstrated that the combination of rich content delivering devices, such as smart phones, together wireless broadband networking and server side computational power can be used to seamlessly weave a mesh of smart services and intelligent environments providing support to human memory capabilities. Our system is
MIGLIARDI, MAURO, M. Gaudina
openaire   +1 more source

GPS/encoder based precise navigation for a 4WS mobile robot

7th International Conference on Control, Automation, Robotics and Vision, 2002. ICARCV 2002., 2004
In this paper, position and orientation estimation with high accuracy based on GPS and encoders for a four-wheel-steering vehicle (4WS) mobile robot is addressed. An architecture of position and orientation estimation is proposed, which consists of two Extended Kalman Filters and a processing unit of Runga-Kutta-based dead reckoning.
Bo He, Danwei Wang, Minhtuan Pham, Tieniu Yu   +3 more
openaire   +1 more source

Research on Control Algorithm for DYC and Integrated Control with 4WS

2009 International Conference on Computational Intelligence and Natural Computing, 2009
The best advantage of the DYC is it can greatly improve vehicle handling and stability. It is proposed integrated control of four wheel steering systems (4WS) and direct yaw moment control. A desirable vehicle model is established with the best performance of side slip angle and yaw rate.
Zhu Tianjun, Zong Changfu
openaire   +1 more source

Tele-Operated `4W Vehicle

2021 International Conference on Advancements in Electrical, Electronics, Communication, Computing and Automation (ICAECA), 2021
K. Akila, B. Sabitha, A Shanmugavadivel, M Praveen, N H Akbar Ali   +4 more
openaire   +1 more source

Development and Evaluation of Vehicle Simulation Models for a 4WS Application

Vehicle System Dynamics, 1995
SUMMARY In the scope of the European Prometheus project a passenger car with active rear wheel steering was developed by TNO in cooperation with PSA. During development and engineering of the rear wheel steering system simulation tools have been used to reduce development costs.
S.T.H. JANSEN, J.J.M. VAN OOSTEN
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Robustness to Speed of 4WS Vehicles for Yaw and Lateral Dynamics

Vehicle System Dynamics, 1997
SUMMARY This paper addresses the issue of robustness and closed loop performance of four wheel steering (4WS) vehicles for yaw and lateral maneuvers for fixed and non-fixed speeds. A feedback structure derived from the plant inverse dynamic, such that the vehicle 2×2 matrix transfer function is robust to speed, is proposed.
openaire   +1 more source

4W (what, when, where, why)

2006
4W (what, when, where, why)
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