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Adhesion control method and device

A technology of adhesion control and rotor frequency, applied in locomotives and other directions, it can solve the problems of low adhesion utilization rate, wheel-rail abrasion, etc., and achieve the effect of improving adhesion utilization rate, reducing the degree of idling and sliding, and stably exerting traction.

Active Publication Date: 2021-08-03
CRRC YONGJI ELECTRIC CO LTD
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] To sum up, the existing adhesion control methods have a low adhesion utilization rate and cannot effectively avoid wheel-rail abrasions.

Method used

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  • Adhesion control method and device
  • Adhesion control method and device
  • Adhesion control method and device

Examples

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Embodiment Construction

[0054]Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0055] The terms "comprising" and "having" and any variations thereof in the description and claims of the present invention are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes...

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Abstract

Embodiments of the present invention provide a method and device for controlling adhesion. This method uses a single axis as the control unit and belongs to the category of axis control. This embodiment uses the first motor as the control object to illustrate, specifically including: collecting the rotor frequencies of the first motor, the second motor, the third motor and the fourth motor, Get the real-time torque of the first motor, the first motor and the second motor are the shaft motors of the first bogie, the third motor and the fourth motor are the shaft motors of the second bogie, the first bogie and the second bogie Adjacent; determine the rotor frequency difference and rotor frequency differential value of the first motor based on the collected rotor frequencies of multiple motors; determine the torque reduction based on the rotor frequency difference, rotor frequency differential value and real-time torque of the first motor Amount; adjust the torque of the first motor according to the torque reduction amount. The method of the embodiment of the present invention improves the adhesion utilization rate and reduces wheel-rail abrasion phenomenon.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of electric locomotive control, in particular to a method and device for controlling adhesion. Background technique [0002] The reason why the locomotive can travel on the track is that under the load of the locomotive, elastic deformation occurs between the wheel and rail, forming a contact surface. The traction force of the locomotive is applied to the wheels through the motor shaft, and the contact surface of the wheel and rail interacts to generate a force that can keep the wheel and rail relatively stationary without relative sliding, which is called adhesion force. Under the joint action of traction force and adhesion force, the locomotive can realize a series of actions such as traction and braking. The amount of available adhesion is affected by many factors: wheel and rail surface conditions such as wet, icy, dirty, rusty, etc., locomotive speed, curvature of curves, and whee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B61C15/10
CPCB61C15/107
Inventor 苏鹏程张巧娟于森林詹哲军张瑞峰牛剑博高永军张吉斌邹会杰
Owner CRRC YONGJI ELECTRIC CO LTD
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