This paper proposes an automobile dynamics model, sets up dynamics equations and solving algorithms, develops a corresponding computer simulation program (ADPCSP), and gives some practical examples.

Longitudinal dynamics system control is an important part of automated control of the vehicle. Longitudinal control is the speed control of an automobile on its running way.

With the great improvement of the computer technique and the maturation of the multi-body dynamics, the multi-DOF of the automobile model was presented and the simulation results were more accurate.