In this paper, a new actuator fault detection and isolation method for a four wheel independent drive electric vehicle is proposed. Also, a controller based on sliding mode control method is proposed for lateral stability of the vehicle. The proposed control method is designed in three high, medium and low levels. At the high-level, the vehicle desired dynamics such as longitudinal speed refere...

Considering driving safety and comfort, this paper proposed a roll and yaw integrated control method utilizing four wheel steering based on disturbance observer (hereinafter DOB) and 2-degree-of-freedom (hereinafter 2DOF) control approach. Firstly, vehicle model for controller design as well as the desired roll and yaw motion were explained; then the controller design was carried out based on t...

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...

The wind-driven dynamic manipulator is a device which uses the wind tunnel freestream energy to drive multiaxis maneuvers of test models. This paper summarizes work performed using the device in several applications and discusses current work on characterizing the aerodynamics of an X-38 vehicle model in pitch-yaw maneuvers. Previous applications in flow visualization, adaptive control and line...

Abstract: In this paper a three dimensional non-linear model has been derived to describe the dynamics of an unstable moment exchange unicycle robot. The robot uses a driving wheel to provide stabilization in longitudinal direction, while a second moment exchange wheel with a large inertia is used for stabilization in lateral direction. For validation purposes, the resulting equations of motion...

Direct Yaw Moment Control (DYC) is an effective way to alter the behaviour of electric cars with independent drives. Controlling torque applied each wheel can improve handling performance a vehicle making it safer and faster on race track. The state-of-the-art literature covers comparison various controllers (PID, LPV, LQR, SMC, etc.) using ISO manoeuvres. However, more advanced important chara...

Unstructured off-road environments with complex terrain obstacles and pavement properties bring obvious challenges for special purpose autonomous vehicle control. A cascade direct yaw moment control strategy (CDYC), which contains a main loop servo loop, is proposed to enhance the accuracy stability of an independent eight in-wheel motor-driven rear-wheel steering (8WD/RWS). In double PID contr...

For a vehicle equipped with active single-wheel steering, brake, drive and suspension systems a nonlinear vehicle model is presented. On the basis of this model an integrated vehicle dynamics control is developed comprising all of the mentioned chassis actuators to control the plane vehicle motion. The basic control strategy consists in two parts. One part is a flatness based tracking controlle...

A controller is developed for underactuated surface ships with only surge force and yaw moment available to globally track a reference trajectory generated by a suitable virtual ship in a frame attached to the ship body. The control development is based on Lyapunov’s direct method and backstepping technique, and utilizes several properties of ship dynamics and their interconnected structure. Nu...