This paper aims at presenting the efficiency of the Linear Parameter Varying method for vehicle dynamics control, in particular when some actuators may be in failure. The case of the suspension actuators failure and braking actuators failure are presented. The main objective is to enhance the vehicle dynamics even with faulty actuators through the suspension control (for comfort and road holdin...

A nonlinear observer for estimation of lateral and longitudinal velocity of automotive vehicles is proposed, based on acceleration and yaw rate measurements in addition to wheel speed and steering angle measurements. Stability of the observer is proved in the form of input-to-state stability of the observer error dynamics, under an assumption on the friction model. This assumption is treated wi...

Crosswinds affect vehicle driving stability and their influence increase with speed. To improve high speed stability, interdisciplinary research using unsteady aerodynamics dynamics is necessary. The current demands of faster development times require robust virtual methods for assessing performance in early design phases. This paper employs a numerical one-way coupling between the two discipli...

In this paper, we investigate the nonlinear dynamics of connected vehicle systems. Vehicle-to-vehicle (V2V) communication is exploited when controlling the longitudinal motion of a few vehicles in the traffic flow. In order to achieve the desired systemlevel behavior, the plant stability and the head-to-tail string stability are characterized at the nonlinear level using Lyapunov functions. A m...

This paper proposed a control method of vehicle lateral stability system. In order to obtain the best driving performance under complicated friction conditions track, direct yaw moment (DYC) and engine torque regulation (ETC) value need be adjusted avoid penalisation each other. Firstly, intervention timing is studied, which judged by phase plane longitudinal speed threshold method, respectivel...

With the development of the vehicle industry, controlling stability has become more and more important. Techniques of evaluating vehicle stability are in high demand. As a common method, usually GPS sensors and INS sensors are applied to measure vehicle stability parameters by fusing data from the two system sensors. Although prior model parameters should be recognized in a Kalman filter, it is...

The tyre lateral force control is crucial to vehicle stability. Vehicle side slip and out of can be prevented effectively by observing accurately the force. Thus, a novel quasi-sliding mode observer (QSMO) proposed. algorithm adopts longitudinal error as feedback considering parameter uncertainties without complex model. First, on-line verification was carried dSPACE for using experimental data...

Cooperative Adaptive Cruise Control (CACC) employs wireless intervehicle communication to allow for automatic vehicle following at small intervehicle distances while guaranteeing string stability. Inherent to the CACC concept, however, is its vulnerability to communication impairments, among which latency of the wireless link, which compromise string stability and, hence, safety. To investigate...

The usage of electronically controlled systems is recently in the trend of increase. Electronically controlled systems for the vehicle are communicated through the network as CAN (Control Area Network) among individual electronic control systems. By sharing sensor and processing signals through the network among individual electronic control systems, Unified Chassis Control (UCC) which control ...

Nonlinear hunting speeds of railway vehicles running on a tangent track are analytically obtained using Hopf bifurcation theory in this paper. The railway vehicle model consists of nonlinear primary yaw dampers, nonlinear flange contact stiffness as well as the clearance between the wheel flange and rail tread. Linear and nonlinear critical speeds are obtained using Bogoliubov method. A compreh...