As the speed of heavy-haul trains is increased and transportation efficiency is improved, wheel-rail adhesion control has become a critical factor for train safety. Under the scenario of straight track, a dynamic model of the heavy-haul train considering the locomotive transmission system is established. Then, a wheel-rail adhesion control model is developed to research wheel-rail adhesion control and characteristics under complex service conditions, such as friction coefficients and train speeds. The results indicate that the wheelset angular acceleration and the wheelset longitudinal creepage considering the transmission system are larger than without considering the transmission system. Train speeds and friction coefficients are key factors affecting the adhesion control effect and characteristics. Effective control of the wheelset slipping is achieved. In the single torque control process, the torque adjustment time considering the transmission system is longer, the control efficiency is smaller and the control effect is worse. The transmission system will reduce the effect of adhesion control. Thus, it is necessary to consider the effect of the transmission system in adhesion control research.
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