Train wheel rail adhesion online improvement method, storage medium and device
An adhesion, wheel-rail technology, applied in the field of rail vehicles, can solve the problems of rail surface and wheelset damage, sand can not guarantee sand and other problems, to achieve the effect of improving adhesion
Active Publication Date: 2022-07-12
SHANGHAI UNIV OF ENG SCI
View PDF13 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
And sanding can't guarantee that most of the sand can be attached to the track, and there is also some damage to the rail surface and wheelset during braking.
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0026] In order to make it easy to understand the technical means, creative features, goals and effects realized by the present invention, the following embodiments describe an on-line improvement method, storage medium and device for the adhesion of train wheels and rails of the present invention in conjunction with the accompanying drawings. Yes, the description of these embodiments is used to help the understanding of the present invention, but does not constitute a limitation of the present invention.
[0027] like figure 1 As shown, an online method S100 for improving the adhesion of train wheels and rails in this embodiment is applied to a rail vehicle in a stopped state and a corresponding track surface, and includes the following steps:
[0028] Step S1: Taking the externally inputted vehicle speed and wheel linear speed of the rail vehicle as the rail vehicle speed and the rail wheel speed, obtaining the braking speed difference based on the rail vehicle speed and the...
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
Login to View More Abstract
The invention belongs to the field of railway vehicles, and discloses a train wheel rail adhesion online improvement method, which comprises the following steps of: firstly, obtaining a braking speed difference based on a railway speed and a railway wheel speed, and obtaining a braking deceleration based on the railway wheel speed; then, the braking slip rate is obtained based on the braking speed difference and the rail vehicle speed; then, a primary adhesion improvement signal and a reinforced adhesion improvement signal are sent out based on comparison results of the braking speed difference, the braking deceleration and the braking slip rate with a plurality of preset threshold values respectively; and the braking speed difference, the braking deceleration and the braking slip rate are compared with a preset first braking speed difference threshold value, a preset first braking deceleration threshold value and a preset first braking slip rate threshold value respectively till all comparison results are smaller than or equal to one another. The invention further discloses a storage medium and a device for train wheel rail adhesion online improvement, wherein the storage medium and the device are used for implementing the train wheel rail adhesion online improvement method.
Description
technical field [0001] The invention belongs to the field of rail vehicles, and in particular relates to an on-line improvement method, storage medium and device for the adhesion of train wheels and rails. Background technique [0002] The braking system is an important system directly related to the safety of rail vehicles. At present, there are two types of braking for rail trains: air braking and electric braking. Whether air braking or electric braking, they are all adhesive braking. The biggest disadvantage of adhesive braking is that the adhesive force is limited, and the wheel-rail adhesion is greatly affected by the state between the wheel and rail. If the braking force exceeds the adhesion limit, the wheel speed drops sharply or even stops and the speed of the vehicle decreases slowly, which is called "gliding". "or "locked wheel"; once this phenomenon occurs, it is likely to cause wheel-rail scratches, eccentricity will occur after wheel scratches, and the tread wi...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B61C15/08E01H8/10
CPCB61C15/08E01H8/10Y02T10/72
Inventor 朱文良陈沛文余朝刚孙宁远
Owner SHANGHAI UNIV OF ENG SCI