Research on Adaptive Control Strategy for 4-legged Hydraulic Leveling System

The hydraulic leveling system of a certain vehicle platform is greatly affected by temperature, and there are problems such as fluctuations in leveling time and large deviation in leveling accuracy in high and low temperature conditions. By adopting an angle error leveling scheme and following the principle of only raising and not lowering the leveling legs, a mathematical model of the leveling system was established. Then, an adaptive automatic leveling control strategy was proposed, as well as simulation and experimental research were conducted. The results show that the designed control strategy can maintain stable leveling time and leveling accuracy in high and low temperature environments, effectively solving the problem that the leveling performance of the hydraulic leveling system is greatly affected by temperature. The research work in this article has value in engineering application.