Results 251 to 260 of about 107,292 (309)

Segmented Estimation of Road Adhesion Coefficient Based on Multimodal Vehicle Dynamics Fusion in a Large Steering Angle Range. [PDF]

Sensors (Basel)
Jiang H, Shen T, Tang B, Yang K.
europepmc   +1 more source

Optimization and validation of traction performance for an eight-axle heavy-haul locomotive during gradient starting. [PDF]

Sci Rep
Liu Y, Wu X, Ma P, Yuan X.
europepmc   +1 more source

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Rear Steer Actuator-Less Four-Wheel Steering System for Four-Wheel Driving Electric Vehicles

IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society, 2018
Four-wheel steering (4WS) vehicles have superior charactristics in motion performance to two wheel ones by controlling the yaw motion and the sideslip angle. Previous research revealed that electric vehicles (EVs) driven by in-wheel motors (IWMs) can steer without steering actuators (electric power steering, EPS) by utilizing their appropriate ...
K. Miyahara, H. Fujimoto, Y. Hori
openaire   +1 more source

Four-Wheel Steering Autonomous Vehicles

Volume 10: Mechanical Systems and Control, Parts A and B, 2009
Employing an independent four-wheel-steering (4WS) system, we introduce an autodriver algorithm to keep an autonomous vehicle on a given road. The kinematic condition of steering can be used to set the steer angles such that the kinematic center of rotation is at a desired point.
Reza N. Jazar, M. Mahinfalah, A. Khazaei
openaire   +1 more source

Kinematics of four-wheel-steering vehicles

Forschung im Ingenieurwesen, 2001
In this paper, we review some aspects of the kinematical theory of four-wheel-steering (4WS) vehicles and present some new results and conclusions that we came across during our research on the subject. In a first paragraph, we compare the turning radius of two-wheel-steering (2WS) and 4WS vehicles and draw some interesting conclusions on the ...
K. N. Spentzas, I. Alkhazali, M. Demic
openaire   +1 more source

Dynamics of four-wheel-steering vehicles

Forschung im Ingenieurwesen, 2001
In this paper we present an optimised 3 degrees-of-freedom non-linear dynamic model of a four-wheel-steering (4WS) vehicle. As variables, we retain the lateral velocity V, the rolling velocity p and yaw velocity r. The front steer angle δf and rear steer angle δr are considered to be linear functions of the steering wheel angle θs and of dθs/dt, the ...
K. N. Spentzas, I. Alkhazali, M. Demic
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Lateral Control of a Four-Wheel Steered Vehicle

IFAC Proceedings Volumes, 1998
Only abstract.
Bruin, de, D., Bosch, van den, P.P.J.
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Control for four‐wheel individual steering and four‐wheel driven electronic vehicle

Electrical Engineering in Japan, 2005
AbstractAn indoor four‐wheel individual steering and driving vehicle with full electronics was built for evaluation of the system's ability and the performance in practical use. Mechanical parts such as the connecting rod and the differential gear are not provided for this vehicle.
Hiroyasu Oshima, Masashi Tani, Nobuaki Kobayashi, Akira Ishii, Katsuya Imai   +4 more
openaire   +1 more source

Rear-Steering Based Decentralized Control of Four-Wheel Steering Vehicle

IEEE Transactions on Vehicular Technology, 2020
In order to improve the lateral and directional performance of vehicles, this paper proposes a novel rear-steering based decentralized control (RDC) algorithm for four-wheel-steering (4WS) vehicles. Based on a linearized single-track vehicle model, a prototype of the RDC algorithm for linear conditions is derived.
Yang Wu, Boyuan Li, Nong Zhang, Haiping Du, Bangji Zhang   +4 more
openaire   +2 more sources