نتایج جستجو برای: wheel slip ratio

تعداد نتایج: 533128  

Esmaeili, Kazemi, Tabatabaei Oreh,

Direct Yaw moment Control systems (DYC) can maintain the vehicle in the driver’s desired path by distributing the asymmetric longitudinal forces and the generation of the Control Yaw Moment (CYM). In order to achieve the superior control performance, intelligent usage of lateral forces is also required. The lateral wheel forces have an indirect effect on the CYM and based upon their directio...

2012
Pascal Strupler Cédric Pradalier Roland Siegwart

Rough terrain control optimization for space rovers has become a popular and challenging research field. Improvements can be achieved concerning power consumption, reducing the risk of wheels digging in and increasing ability of overcoming obstacles. In this paper, we propose a terrain profiling and wheel speed adjustment approach based on terrain shape estimation. This terrain estimation is pe...

2013
Giulio Reina

Mobile robots are increasingly being used in challenging outdoor environments for applications that include construction, mining, agriculture, military and planetary exploration. In order to accomplish the planned task, it is critical that the motion control system ensure accuracy and robustness. The achievement of high performance on rough terrain is tightly connected with the minimization of ...

داود مؤمنی آبخارکی, , برات قبادیان, , عباس همت, , سعید مینایی, ,

Differential lock is a means of improving tractor performance. This system causes the revolution of the axles to become equal. It, improves traction, decreases abrasion of drive tires, improves fuel consumption, and increases tractor work rate. Despite advantages of the system, differential lock has not been optimized in Iran. Thus, a semi-automatic differential lock system for MF-285 tractor w...

2006
Devin J. Balkcom Paritosh A. Kavathekar Matthew T. Mason

One common mobile robot design consists of three ‘omniwheels’ arranged at the vertices of an equilateral triangle, with wheel axles aligned with the rays from the center of the triangle to each wheel. Omniwheels, like standard wheels, are driven by the motors in a direction perpendicular to the wheel axle, but unlike standard wheels, can slip in a direction parallel to the axle. Unlike a steere...

Journal: :Science Progress 2021

A new type of built-in composite electromagnetic and frictional braking structural scheme its corresponding coordinated control strategy were proposed to enhance the effects for electric vehicle. Fuzzy theory was applied design system. In comparison lower strength moderate strength, slip ratio high maintained at near 0.15. It effectively avoided wheel getting locked provided relatively large to...

ژورنال: علوم آب و خاک 2005
داود مؤمنی آبخارکی, , برات قبادیان, , عباس همت, , سعید مینایی, ,

Differential lock is a means of improving tractor performance. This system causes the revolution of the axles to become equal. It, improves traction, decreases abrasion of drive tires, improves fuel consumption, and increases tractor work rate. Despite advantages of the system, differential lock has not been optimized in Iran. Thus, a semi-automatic differential lock system for MF-285 tractor w...

ژورنال: کنترل 2021

In designing the anti-lock braking system (ABS), some states and parameters of vehicle system such as road friction of coefficient and wheel slip should be estimated due to lack of cost effective and reliable sensors for direct measurement. Because of nonlinear characteristics of vehicle dynamics and tire forces, development of a nonlinear estimation algorithm is necessary. However, considerati...

Journal: :El-cezeri 2021

In this paper, a torque distribution control for electric vehicles with an in-wheel motor installed each wheel is proposed in order to manage the traction operation of vehicle and avoid slip ratio from reach extreme values while moves into slippery surfaces. The driving force main controller system its consist two loop. PD-Fuzzy logic PI-control are applied as speed inner loop aim improving sta...

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