Idling slide protective control method of locomotive

A technology for protection control and locomotives, applied to locomotives, railway signals and safety, etc., can solve problems such as locomotive impact, locomotive traction loss, and influence on locomotive adhesion utilization, etc., to achieve the effect of reducing locomotive impact, clear principle, and easy to understand

Active Publication Date: 2010-09-15
ZHUZHOU CSR TIMES ELECTRIC CO LTD
View PDF3 Cites 34 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention provides a locomotive idling slide protection control method, which can well overcome the existing technology that the unloading depth is too large, which not only

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Idling slide protective control method of locomotive
  • Idling slide protective control method of locomotive
  • Idling slide protective control method of locomotive

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

A typical implementation is a specific example of applying the technical solution of the locomotive idling and coasting protection control method proposed by the present invention to the adhesion utilization control system of the HXD1C AC drive electric locomotive. The following will specifically describe the implementation of the present invention in conjunction with theoretical calculations.

The electromechanical motion equation can be obtain...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to an idling slide protective control method of a locomotive. The method comprises the following steps of: detecting the acceleration d omega/dt of a locomotive wheel pair in real time, when the acceleration exceeds a protective threshold, i.e. domega/dt is more than ag, starting to unload a moment, and continuously searching the peak value of the acceleration, i.e. when d<2>omega/dt<2>=0 in the unloading process, searching the peak value; and instantly stopping to unload the moment when the peak value is searched, wherein the change rate of a motor torque dT/dt is 0, the adhesion of a locomotive wheel track recovers again and the change rate of the adhesive force of the locomotive wheel track dF/dt is more than 0. The invention can overcome the over-deepness unloading problem very well in the prior art, the problem cause the locomotive tractive effort loss to be great, affects the adhesion utilization of the locomotive and causes the front and back impacts of the locomotive.

Description

technical field The invention relates to a locomotive sticking control calculation method, in particular to an idling slide protection control method of a locomotive, which realizes optimal control of locomotive idling slide protection. Background technique The traction force of a locomotive is produced by the adhesion of the wheel and rail. The wheel weight, the elasticity of the wheel and rail material, and the torque applied to the wheel constitute the three elements that generate the traction force of the wheel circumference. As shown in Figure 1, under the action of the wheel load P, the wheel-rail contact part undergoes elastic deformation, forming an elliptical contact area. When the wheel rolls forward under the action of the driving torque T, the wheel-rail material elastically deforms near the contact area, thereby generating a tangential force F on the contact surface. The tangential force F is the circumferential traction force, which makes the wheel roll forwar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B61C17/00B61L23/00
Inventor 丁荣军李江红陈华国徐立恩曾云彭辉水
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap