Vehicle dynamics

About: Vehicle dynamics is a research topic. Over the lifetime, 12909 publications have been published within this topic receiving 204091 citations.

Vehicle sensor calibration for determining vehicle dynamics

Abstract: An accelerometer sensor equipped device uses GPS and known alignment data to determine the alignment of the accelerometer sub-system when the vehicle is stationary and in motion. The alignment data is determined from known surface information, measured GPS velocity, and measured GPS Heading.

Active Disturbance Rejection Control for Active Suspension System of Tracked Vehicles With Gun

Abstract: In this paper, a complete mathematical model for a half-tracked vehicle with eight degrees of freedom is established. It is difficult to control a suspension system owing to complexity of system itself and irregular excitations from road surfaces. A road excitation model is analyzed in which a relationship between the vehicle body and the gun is taken into account. Active disturbance rejection controllers are proposed in all channels of six independent subsystems by decoupling the original system. With switch extended state observers, total disturbances are eliminated for the half-tracked vehicle. Simulation results are presented to illustrate effectiveness of the proposed method in this paper.

Cooperative target-capturing strategy for multi-vehicle systems with dynamic network topology

Abstract: This paper deals with cooperative target-capturing problem for multi-vehicle systems with dynamic network topology. Firstly, we introduce a dynamic network topology that depends on relative distance between the vehicles. Secondly, we propose the target-capturing strategy based on consensus seeking with dynamic network topology. In proposed strategy, at least one vehicle can acquire the information of the target-object and network topology among vehicles is time-varying but always connected. To analyze the convergence of target-capturing behavior with dynamic network topology, algebraic graph theory and matrix theory are utilized. Finally, numerical simulation results and experimental results are provided that demonstrate the effectiveness of the proposed method.

Interaction of Vehicles and Flexible Tracks by Co-Simulation of Multibody Vehicle Systems and Finite Element Track Models

Abstract: SUMMARYCo-Simulation gives a suitable framework for coupling software-tools specialized for the application in different fields of mechanics and/or physics, particularly if based on different mathematical methods For the computational analysis of a vehicle's running behaviour usually a Multibody System approach is used while flexible tracks—representing for example a bridge—are best examined with the help of Finite Element software Now, for the simulation of a vehicle running on a flexible track without neglecting the inherent interaction, an obvious and promising strategy is to simulate each of the two subsystems (vehicle and flexible track) with the appropriate software concurrently and to exchange the interfacing data at discrete communication points To minimize the numerical effort, the track's finite element model can be reduced modally to a linear description in a pre-processing step additionally; the resulting linear equations of motion of the track can then be solved analytically with high effi

Kinematic design of double-wishbone suspension systems using a multiobjective optimisation approach

Abstract: This paper is focused on the kinematic design of double-wishbone suspension systems in vehicles, which is tackled using a multiobjective dimensional synthesis technique. The synthesis goal is to optimise an RSSR-SS linkage, subject to some constraints involved in the dynamic behaviour of vehicles. The synthesis method is based on gradient determination using exact differentiation to obtain the elements in the Jacobian matrix. These characteristics make the method adapt well to the optimum design of vehicle suspension systems. The method is capable of handling equality and inequality constraints, thus, the usual ranges of values may be imposed on the functional parameters. The formulation presented is easy to implement and the solutions obtained demonstrate the accuracy and robustness of the method.