Abstract
Stability control system plays a significant role in vehicle dynamics to improve the vehicle handling and achieve better stability performance. In order to study and evaluate the performance of the vehicles in addition to how to control it, it is necessary to identify obtain some models related to the dynamics of the vehicle as well as the tire models. This paper presents fundamentals of vehicle dynamics by introducing vehicle models and tire model, which have been widely adopted for vehicle motion control. This helps to get a basic idea of what parameters and states of a vehicle are important in vehicle motion control. This work is separated into four sections: vehicle planar model, full vehicle model, two degrees of freedom vehicle model (bicycle model) to design the controller, and wheel dynamic model.
Highlights
Vehicle Dynamics is an engineering discipline that deals with the motion of a vehicle in relation to its intended usage
This paper presents fundamentals of vehicle dynamics by introducing vehicle models and tire model, which have been widely adopted for vehicle motion control
This work is separated into four sections: vehicle planar model, full vehicle model, two degrees of freedom vehicle model to design the controller, and wheel dynamic model
Summary
Vehicle Dynamics is an engineering discipline that deals with the motion of a vehicle in relation to its intended usage. Vehicle dynamics are crucial to the advancement of the automobile industry. Vehicle ride comfort and handling stability research has gotten a lot of attention in the subsequent decades. The lateral or transverse dynamics of the vehicle are dealt with in handling dynamics, which primarily apply to vehicle handling stability, vehicle sideslip induced by tire lateral force, yawing, and roll motion. Driving, braking, and ride comfort are all part of the vehicle's driving dynamics, which are separated into longitudinal and vertical dynamics. The vertical tire force causes vehicle vibration and pitch movement, which affects ride comfort. The longitudinal force of a tire when a vehicle is speeding up or stopping, as well as vehicle vibration induced by a working engine, are all part of the topic of vehicle dynamics research. Coordinate system The system of coordinates that is used to describe the vehicle motion as shown below in the figure
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