Statically indeterminate optimization analysis of steering column load of EPS

Analysis and optimization of steering column load under dynamic conditions is one of measures to solve the contradiction between dynamic properties requirements of vehicle steering system and great safety factor. In this paper taking C-EPS steering column with complicated load as study object, force equilibrium and dynamics conditions which meet the relationship between definite boosting torque and steering wheel load is analyzed, followed by load analysis and creation of load-optimized model based on load positions, then calculation is done with algorithm of PSO (Particle Swarm Optimization), and load optimization is realized with practical EPS product. The load optimization provide design basis for the optimization of EPS system.