Locomotive adhesion control method based on dynamic axle load transfer compensation and multi-axis coordination

Abstract

The invention discloses a locomotive adhesion control method based on dynamic axle load transfer compensation and multi-axis coordination. One set of virtual three-layer distributed adhesion control system is established, wherein the first layer is a torque distribution layer used for dynamically adjusting a given torque according to a calculated axle load transfer amount; the second layer is a dynamic inter-axle coordination layer used for selecting the earliest idling axle of a locomotive as a main control axle and selecting other axles as slave control axles; and the third layer is an adhesion control layer used for recognizing rail surface on the basis of a support vector machine; the current rail surface state is recognized by using the support vector machine; and adhesion control strategies of the main control axle and the slave control axles are correspondingly designed for different rail surface states. According to the locomotive adhesion control method based on dynamic axle load transfer compensation and multi-axis coordination, a traction control strategy of a heavy-duty electric locomotive is optimized, and the thought of the support vector machine is integrated into the rail surface recognition. According to the locomotive adhesion control method based on dynamic axle load transfer compensation and multi-axis coordination, as one set of dynamic main and slave adhesion control method is designed, the idling frequency of the locomotive is reduced, and the adhesion utilization of the whole locomotive is enhanced.

Description

technical field [0001] The invention relates to locomotive traction control technology, in particular to a locomotive adhesion control method based on dynamic axle load transfer compensation and multi-axis coordination. Background technique [0002] With the rapid development of modern social economy, the role of railway transportation in the field of transportation is becoming more and more important, and the development of railway is also playing an active and important role in my country's economic construction. The running of an electric locomotive depends on the adhesion between the wheels and rails. If the traction is greater than the available adhesion between the wheels and the rails, the excess traction will accelerate the wheels to form idling, and the relative sliding speed will increase rapidly, while the available adhesion will decrease rapidly, resulting in problems such as rail surface A series of serious problems such as excessive wear, tire heat damage, and ...

AI Technical Summary

Problems solved by technology

At present, most adhesion control systems at home and abroad only consider the adhesion control of a single axis, and do not consider the problem of adhesion utilization from the perspective of the locomotive as a whole, which has great limitations

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