Results 251 to 260 of about 129,642 (295)
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Steering pluripotency and differentiation with N6-methyladenosine RNA modification
Biochimica et Biophysica Acta (BBA) - Gene Regulatory Mechanisms, 2019Chemical modifications of RNA provide a direct and rapid way to modulate the existing transcriptome, allowing the cells to adapt rapidly to the changing environment. Among these modifications, N6-methyladenosine (m6A) has recently emerged as a widely prevalent mark of messenger RNA in eukaryotes, linking external stimuli to an intricate network of ...
Sandhya, Malla +2 more
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A planar electric vehicle with differential steering and a plantar command
2011 IEEE International Conference on Control Applications (CCA), 2011This paper focuses on a new electric and compact vehicle with a differential steering and a sensitive plantar as driving command. The mechanical, electronic and software architecture are presented. A special focus is given to the sensitive surface of the vehicle chassis which allows the user to drive the vehicle by unbalancing his or her center-of ...
Cristiano Spelta +4 more
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Differential Steering Control System of Lawn Mower Robot
2021Aiming at the problem of inflexible steering and motion of robot, this paper applies fuzzy adaptive PID control algorithm to the differential steering control system of mowing robot to improve its rapidity and accuracy. In this paper, according to the domestic green environment and the overall parameters of the mowing robot, the overall design of the ...
Xu Guo +3 more
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Caterpillar's New D8N Tractor with Differential Steering
SAE Technical Paper Series, 1987<div class="htmlview paragraph">The D8N track type tractor at 213 kW (285 horsepower) was developed to provide a machine with large tractor features, yet carefully sized to be transported easily. In addition to incorporating the design features of Caterpillar's other large elevated sprocket tractors, the D8N has been equipped with a unique new ...
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On the Tracking Control of Differentially Steered Wheeled Mobile Robots
Journal of Dynamic Systems, Measurement, and Control, 1997Fundamental tracking control algorithms of a differentially steered wheeled mobile robot with two conventional driven wheels are studied through analyzing the robot’s inherent kinematics. This includes the tracking variable assignment as well as the tracking singularity and position-orientation tracking decoupling problems. Globally convergent tracking
Zhang, Y. L., Velinsky, S. A., Feng, X.
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Speed-adaptive motion control algorithm for differential steering vehicle
Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2020The differential steering vehicle uses the in-wheel motors to drive the wheels directly and individually. However, in order to deliver the required structural robustness, the differential steering vehicle discarded the mechanical steering system and achieved vehicle steering by applying differential speed between the left and right wheels.
Peng Du +6 more
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SAE International Journal of Transportation Safety, 2017
<div class="section abstract"><div class="htmlview paragraph">Electric Power Assisted Steering (EPAS) is widely adopted in modern vehicles to reduce steering effort. It is probable that some EPAS systems will experience a shutdown due to reliability issues stemming from electrical and/or electronic components.
Zhang, Duanxiang +3 more
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<div class="section abstract"><div class="htmlview paragraph">Electric Power Assisted Steering (EPAS) is widely adopted in modern vehicles to reduce steering effort. It is probable that some EPAS systems will experience a shutdown due to reliability issues stemming from electrical and/or electronic components.
Zhang, Duanxiang +3 more
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Multiobjective performance optimisation of a new differential steering concept
Vehicle System Dynamics, 2020Differential steering is an emerging steering concept based on traction force differences between left and right sides of vehicles equipped with independently actuated wheels.
Márton Kuslits, Dieter Bestle
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Robust Model Predictive Control for Differential Speed Steering Vehicles
2019 IEEE Asia-Pacific Conference on Computer Science and Data Engineering (CSDE), 2019This paper studies the problem of designing robust model predictive control (RMPC) for four-wheel independently driven electric vehicles (FWIDEV) using differential speed steering. The nonlinear dynamic model of the electric vehicle is recast as a linear time-varying polytopic uncertain system.
Paul Oke, Sing Kiong Nguang
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Crawler Transaxle with Differential Lock and Variable Steering
SAE Technical Paper Series, 1982<div class="htmlview paragraph">This transaxle is composed of two identical planetaries, a group of speed reducing gears that provide traction drive speed to each planetary through the sun pinions that are on a common shaft. Another group of steering, or differential lock gears provide power into the planetaries through the rotating ring gears ...
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