The purpose of this study is to establish a driving simulator for large automobiles. The driving simulator with the components of the original large automobiles has been integrated with linear displacement sensor and angular sensor and by the software the data of the driver driving behavior can be acquired in the simulation system. The goal of the proposed simulator is to leave off the driver’s bad driving habit and the risk of the driving accident will be reduced. In this system, the potentiometer sensor serves as the data acquisition because of its large input voltage, high accuracy and high resolution. In the simulator, repeatability errors of the clutch sensor, the brake sensor, the accelerator sensor and the steering wheel sensor are ±0.0011V, ±0.0011V, ±0.0013V, and ±0.0608V respectively.