The development of the forestry complex, its technical equipment, increase in volume harvested wood Republic Belarus, as well increased competition timber market have become prerequisites for need to study issues field optimizing transport processes and ensuring rhythm logging production. Moving operations cutting area, including collection loading timber, their sorting skidding, formation stac...

The objective of this review is to compare the cost of coppice and longer rotation poplar harvesting technology. Harvesting technology for short rotation poplar has evolved over the years to address both coppice harvest and single-stem harvest systems. Two potential approaches for coppice harvesting are modified forage harvesters and modified mulcher-balers. Both of these systems effectively ha...

This paper is focused on the problem of accurate and reliable path tracking control of a 4-wheels car-like mobile robot moving off-road at high speed. Dynamic and extended kinematic models that take into account the effects of wheel skidding are presented. Based on the extended kinematic model, an adaptive and predictive controller for the path tracking is derived. This control law is combined ...

continued on page 6 The snow falls. It falls thickly, saturating the air, swirling on gusts of wind. At times, white, dull white snow striking your windshield is all you can see. You pass by Donner Summit, on I-80, tires skidding slightly on the freshly plowed road. The snow clears slightly, and you are greeted with the sight of a huge machine, a 20-ton snowblower, blowing snow out next to the ...

Slip ratio control of a ground vehicle is an important concern for the development of antilock braking system (ABS) to avoid skidding when there is a transition of road surfaces. In the past, the slip ratio models of such vehicles were derived to implement ABS. It is found that the dynamics of the hybrid electric vehicle (HEV) is nonlinear, time varying and uncertain as the tire-road dynamics i...

The electronic stability program (ESP) is increasingly finding acceptance in vans and light commercial vehicles (LCV). Nearly all current models, whose gross vehicle weight is generally between 2.8 and 7.5 metric tons, are now available with this active safety system, either as an option or even as standard equipment. Many studies have now confirmed that ESP can prevent a vehicle from skidding ...

This paper represents a robust backstepping tracking control based on a Lyapunov redesign for Skid‐Steered Wheeled Mobile Robots (WMRs). We present kinematic and dynamic models that explicitly relate the perturbations to the skidding in order to improve the tracking performance during real running. A robust controller is synthesized in the backstepping approach ...

Wheeled mobile robots (WMRs) have a numerous applications and planetary of exploration tasks, all of which require building the suitable dynamic model of the robot. Also, the optimal control model that is intended to guide the robot to accomplish its mission is of a significant need. In addition, it is a certain that achieving a success in the robot controller mission requires an accurate estim...

In the paper, a mathematical model assembling a "driver-mobile vehicle-road environment" system and capable of simulating the process of mobile vehicles skid in traction movement mode is proposed. The usage of non-linear drift models allows the development of efficient algorithms for mobile vehicles dynamic stabilization systems. INTRODUCTION The traction loss between the vehicle and the road a...