Abstract: The car is driven under extreme road conditions such as off-road, and there is a certain range of adjustment requirements for the body height. When the traditional suspension scheme is technically integrated with the full-wire chassis, there are mechanism motion interference, excessive wheel camber during the chassis lifting process, and wheel generation. Lateral displacement and other phenomena can easily lead to excessive tire wear, resulting in unstable driving. The key to solving the above problems is to convert the influence of vehicle height changes on the lateral parameters of tires into longitudinal rolling of the wheels, thereby achieving stable and long-travel vehicle height adjustment. . In this study, a seven-degree-of-freedom dynamic model of the whole vehicle is established, and the mechanical analysis of the suspension system guiding mechanism is carried out, and the two are collected as the input information of the system research; the relevant characteristic parameters of the elastic elements and shock absorbers are carried out through the sine wave vibration table. Acquire, carry out the kinematics simulation test of the integrated electric wheel based on the data drive, including the mechanical performance analysis of the key hinge position of the suspension system and the kinematic characteristics study of the overall structure of the electric wheel, so as to define the key performance indicators of the system, and combine the theory Research and simulation tests are carried out to determine the scheme of the double trailing arm active suspension system. The simulation results and the real vehicle verification show that the wheel camber problem can be effectively solved in the process of adjusting the height of the large stroke with the full-wire control platform equipped with the system scheme of this study. , the integrated electric wheel has good independent operation ability, and this research is of great significance to improve the vehicle's passability under extreme road conditions.