Method and system for leveling chassis of vehicle

The invention relates to the field of automatic control on mining equipment, and in particular relates to a method and a system for leveling a chassis of a vehicle. The method for leveling the chassis of the vehicle comprises a stretching process, a punning process, a leveling process and a lifting process which are executed in sequence. In the leveling process, a main leveling hydraulic oil cylinder and an auxiliary leveling hydraulic oil cylinder are determined according to an inclination angle detected by a level sensor, the main leveling hydraulic oil cylinder is actively regulated to be lifted, and meanwhile, the auxiliary leveling hydraulic oil cylinder is passively compensated to pun the ground. According to the method and the system, the technical problems that the chassis of the vehicle is low in leveling accuracy and the phenomenon of weak legs is easily caused in the prior art are solved.