Anti-slip strategy of locomotives using improved adhesion characteristic curve slope method

摘要

An anti-slip method for locomotives using improved adhesion characteristic curve slope method is proposed to solve the problem of low stability and control precision of the original adhesion characteristic curve slope method, it's adopting differentials of adhesion coefficient and slip speed as the identification criterion for locomotive states. The relationship among locomotive adhesion, resistance, and locomotive speed is used to estimate the real-time speed of the locomotive. Mechanical dynamics simulation software is used to establish the anti-slip simulation model of the locomotive. Theimproved adhesion characteristic curve slope method is compared with the combined correction method under different working conditions. Simulation result shows that the method is superior to the combined correction method in terms of reliability and control precision.