Safe and efficient operation active adhesion controlling method and system for motor train unit

A technology of adhesion control and efficient operation, which is applied in general control systems, control/regulation systems, adaptive control, etc., and can solve problems such as the difficulty of wheel-rail surface adhesion characteristics

Inactive Publication Date: 2017-02-22
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods are all post-compensation control methods when dealing with the slipping problem caused by "low adhesion", and they need to measure the accurate vehicle body speed and obtain the adhesion characteristics of

Method used

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  • Safe and efficient operation active adhesion controlling method and system for motor train unit
  • Safe and efficient operation active adhesion controlling method and system for motor train unit
  • Safe and efficient operation active adhesion controlling method and system for motor train unit

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Embodiment Construction

[0051] A method and system for active adhesion control for safe and efficient operation of multiple trains according to the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0052] The following is the best example of an active adhesion control method and system for the safe and efficient operation of an EMU train according to the present invention, which does not limit the protection scope of the present invention.

[0053] figure 1 A flow chart of an active adhesion control method for safe and efficient operation of an EMU train is shown, including the following steps:

[0054] S1. Design the adhesion moment observer based on the uniaxial dynamic model and the principle of the full-dimensional state observer, which is used to estimate the adhesion moment between the train wheels and rails in real time

[0055] S2, according to the adhesion torque The adaptive limit torque T of the traction motor is calcula...

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PUM

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Abstract

The invention relates to a safe and efficient operation active adhesion controlling method for a motor train unit. The method comprises the following steps: S1, designing an adhesion torque observer for estimating an adhesion torque il between train wheels and a rail in real time according to a single-axis dynamical model and the full-dimensional state observer principle; S2, deriving an adaptive limiting torque Tlim of a traction motor according to the adhesion torque il, a body acceleration value a and a variable step length algorithm; and S3, designing an adhesion controller according to the daptive limiting torque Tlim of the traction motor and a motor output torque index value Tm* given by a superior traction control system, to coordinate traction control and adhesion control. The method effectively improves the traction braking efficiency of a train, reduces wheel-rail wear, strengthens safe and stable operation of the train, prolongs the service lives of wheels and rails, improves the comfort of passengers and reduces energy consumption of the train.

Description

technical field [0001] The present invention relates to the field of railway and rail transit, and more specifically relates to an active adhesion control method and system for safe and efficient operation of multiple trains. Background technique [0002] Adhesion generated by the wheel-rail interaction is a key component of the rail vehicle powertrain, providing the actual traction or braking force for the rail vehicle. However, the adhesion between wheel and rail is a complex process with great uncertainty, which is affected by many factors such as locomotive design, wheel and rail conditions, vehicle speed, track conditions, and climate conditions. With the increasing speed and range of EMU trains, the operating environment of trains has become more complex and changeable. In order to ensure the safe and effective operation of trains under such high-speed and long-distance conditions, it puts forward higher requirements and challenges for the adhesion control performance...

Claims

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Application Information

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IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 廖文豪陈小梅张敏慧沈志凌郭勇习博杜广宇朱春芳
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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