Optimal traction torque online search based locomotive adhesion control method

Abstract

The invention discloses an optimal traction torque online search based locomotive adhesion control method, comprising the following steps: S1, performing idling detection on locomotive axles, recognizing the axle with idling operation first of a locomotive as a search axle, and the rest axles as receiving axles; S2, obtaining the optimal traction torque, suitable for operating under a current railsurface working condition, of the search axle through an optical traction torque online search algorithm; and S3, quickly responding to changes, caused by an axle weight transfer phenomenon, of adhesion weight to regulate the optimal traction torque of each receiving axle based on the optimal traction torque of the search axle. According to the optimal traction torque online search based locomotive adhesion control method disclosed by the invention, an adhesion control strategy of the whole locomotive is designed, integrity of the locomotive is taken into consideration, and influences, on adhesion weight of each axle, by the axle weight transfer phenomenon of the vehicle body, are analyzed; and the axles are cooperatively matched by virtue of the advantage of independently regulating thetorque by an the axle-control type traction system, so that integral traction force of the locomotive can be effectively improved, and integral traction performance of the locomotive is improved.

Description

technical field [0001] The invention belongs to the technical field of locomotive traction control, and in particular relates to a locomotive adhesion control method based on online search for optimal traction torque. Background technique [0002] With the development of my country's economy, heavy-haul railway transportation has become an important part of transportation. Heavy-duty locomotives usually use electric locomotives, which are powered by traction motors. The conversion of the power provided by the traction motor into the traction of the locomotive depends on the adhesion between the wheels and rails. With the increase of running speed and carrying capacity of heavy-duty locomotives, the problem of wheel-rail adhesion has become a key issue in improving the traction performance of heavy-duty locomotives. [0003] The wheel-rail contact force is as figure 1 shown. Under the action of the wheel torque T, the wheel generates a driving force F on the rail backward...

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