نتایج جستجو برای: compensating yaw moment

تعداد نتایج: 68875  

Journal: :international journal of automotive engineering 0
m.h. shojaeefard s. ebrahimi nejad m. masjedi

in this article, vehicle cornering stability and brake stabilization via bifurcation analysis has been investigated. in order to extract the governing equations of motion, a nonlinear four-wheeled vehicle model with two degrees of freedom has been developed. using the continuation software package matcont a stability analysis based on phase plane analysis and bifurcation of equilibrium is perfo...

2014

Direct yaw moment control is an effective means to enhance vehicle stability and handling. The majority of the latest direct yaw moment control works employ sliding mode control to generate the target yaw moment. This paper proposes a new sliding mode-based direct yaw moment control method for simultaneous tracking of desired yaw rate and vehicle side-slip for electric and hybrid vehicles equip...

Journal: :international journal of automotive engineering 0
tabatabaei oreh kazemi esmaeili

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 directions,...

Journal: :I. J. Humanoid Robotics 2012
Barkan Ugurlu Jody Alessandro Saglia Nikolaos G. Tsagarakis Darwin G. Caldwell

This article is aimed at describing a technique to compensate undesired yaw moment, which is inevitably induced about the support foot during single support phases while a bipedal robot is in motion. The main strategy in this method is to rotate the upper body in a way to exert a secondary moment that counteracts to the factors which create the undesired moment. In order to compute the yaw mome...

2011
Fereydoon Diba Ebrahim Esmailzadeh

The yaw moment control is the most efficient method for improving vehicle handling and stability. A corrective yaw moment should be applied to the vehicle in order to modify the dynamic behaviour of vehicle. This corrective yaw moment is related to the interaction between the tires and road. Therefore generating corrective yaw moment independent from the tire-road interactions is noteworthy. In...

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...

Journal: :international journal of automotive engineering 0
s.m. shariatmadar m. manteghi m. tajdari

non-linear characteristic of tire forces is the main cause of vehicle lateral dynamics instability, while direct yaw moment control is an effective method to recover the vehicle stability. in this paper, an optimal linear quadratic regulator (lqr) controller for roll-yaw dynamics to articulated heavy vehicles is developed. for this purpose, the equations of motion obtained by the matlab softwar...

2013
Qiang Huang Huaping Wang Wei Xu Gan Ma Yunhui Liu Zhangguo Yu

When a humanoid robot walks fast or runs, the yaw torque is so large that the supporting foot slips easily and the robot may become unstable. The compensation for the yaw torque is important for fast humanoid walking and many studies have been focusing on yaw torque compensation. However, the issue of humanoid robot motion design that can make the movements of the rob...

2004
JOSÉ CARLOS QUADRADO

By considering a four-wheel-motor EV, the present paper addresses the EV stabilization using the advantages of electrical motorized wheels incorporation. The decoupling of the control of the active steering control (AFS) and the direct yaw moment control (DYC) as a way of controlling the vehicle’s body slip angle and its yaw rate simultaneously, also allows the stabilization of the lateral moti...

2008
Byung-Eul Jun Chanho Song

This paper suggests a nonlinear control law to stabilize the rolling motion of missiles. Based on the analysis of rolling moment characteristics due to pitch/yaw control cross-coupling, we propose a conjecture that the moment is described by the bilinear form of pitch/yaw acceleration and yaw/pitch control. The conjecture fits a set of wind tunnel test data and leads to a bilinear control law. ...

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