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Locomotive adhesion control method based on online search for optimal traction torque

A control method and torque technology, applied in the direction of railway signal and safety, complex mathematical operations, etc., to increase the overall traction force of the locomotive, shorten the braking distance, and improve the ride comfort

Active Publication Date: 2022-07-01
CHENGDU YUNDA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In order to overcome the limitations of the existing sticky control technology, the present invention provides a locomotive sticky control method based on online search for optimal traction torque

Method used

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  • Locomotive adhesion control method based on online search for optimal traction torque
  • Locomotive adhesion control method based on online search for optimal traction torque
  • Locomotive adhesion control method based on online search for optimal traction torque

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Embodiment 1

[0066] Compared with the existing sticking control for a single axle, the present embodiment proposes a locomotive sticking control method based on an online search for optimal traction torque, which is used for the overall control of each axle of the locomotive. The principle of the method in this embodiment is: The four axles of the locomotive are divided into two categories, and the axle with the first idling of the locomotive is used as the search axle, and the other axles are used as the receiving axle. When the locomotive travels to a bad track condition, the wheelset idling triggers the sticking control. Based on the above classification, the search axis finds the optimal traction torque suitable for running under the current track surface conditions through the optimal torque online search algorithm, and transmits the obtained optimal torque information to the receiving axis. The receiving axle takes the optimal torque as the benchmark, and adjusts the optimal traction...

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Abstract

The invention discloses a locomotive adhesion control method based on online search of optimal traction torque. The method of the invention includes the following steps: Step S1, idling detection is performed on the locomotive axle, and the first idling axle in the locomotive is identified as the locomotive. Search for the axle, and the other axles are used as receiving axles; Step S2, obtain the optimal traction torque suitable for the search axle to run under the current track surface condition through the optimal torque online search algorithm; Step S3, use the optimal traction torque of the search axle According to the change of the sticky weight caused by the axle load transfer phenomenon, the optimal traction torque of each receiving axle is adjusted quickly. The invention designs a sticking control strategy based on the whole vehicle, considers the integrity of the locomotive, and analyzes the influence of the axle load transfer phenomenon of the vehicle body on the sticking weight of each axle; Coordination and cooperation can effectively increase the overall traction force of the locomotive and improve the overall traction performance of the locomotive.

Description

technical field [0001] The invention belongs to the technical field of locomotive traction control, in particular to a locomotive adhesion control method based on online search of 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 force for the running of the locomotive depends on the adhesion between the wheels and the rails. With the increase of the running speed of the heavy-duty locomotive and the increase of the carrying capacity, the problem of wheel-rail adhesion has become the key problem to improve the traction performance of the heavy-duty locomotive. [0003] The wheel-rail contact force is as figure 1 shown. Under the action of wheel torque T, the wheel generat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61L23/00G06F17/11
CPCB61L23/00G06F17/11
Inventor 李夫忠李强李婷婷王嵩黄景春刘川
Owner CHENGDU YUNDA TECH CO LTD
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