Investigation of the optimised control strategy of the loader boom lifting system

This paper studied the optimised control strategy to solve the problems of delayed start and end impact of loader boom lifting. Based on the analysis of the basic principle of the boom lifting system, a simulation model of the hydraulic coupling system was established using AMEsim. An optimised control strategy was proposed by analysing the working characteristics, and a comparative analysis was conducted between the control strategies before and after optimisation. The simulation results showed that the proposed optimised control strategy can reduce the delay time of loader lifting startup by 43.32% and improve the stability of startup by 32.6%, respectively, compared to the original strategy. Meanwhile, it was not affected by changes in oil temperature and working device load. Otherwise, automatic buffering of the boom at the lifting end was achieved, which improved the automation level of the loader.