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A start control method and device for a rail vehicle

A rail vehicle and electric braking technology, applied in the field of rail vehicles, can solve problems such as failure to start normally

Active Publication Date: 2018-07-10
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the present application provides a start control method and device for a rail vehicle to solve the problem in the prior art that the rail vehicle cannot start normally after slipping

Method used

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  • A start control method and device for a rail vehicle
  • A start control method and device for a rail vehicle
  • A start control method and device for a rail vehicle

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Embodiment Construction

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0040] please participate figure 1 , figure 1 It is a flowchart of a start control method for a rail vehicle disclosed in the present invention, and the method specifically includes the following steps:

[0041] Step S101: when the rail vehicle backslips, obtain the backsliding speed and motor slip of the rail vehicle;

[0042] In the process of starting the rail vehicle, the default direction of rotation of the motor is consistent with the direction of the ...

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Abstract

The invention provides a rail vehicle starting control method and device. According to the relation between a speed value of the backward sliding speed of a rail vehicle and a rotating-speed difference value of a motor, a starting control method under two different work conditions is provided; when the speed value of the backward sliding speed of the rail vehicle is larger than the rotating-speed difference value of the motor, the motor is controlled to output electric braking torque which corresponds to the rotating-speed difference of the motor and has the direction the same with that of the backward sliding direction of the rail vehicle, so that the backward sliding speed of the rail vehicle is constantly reduced until the speed value of the backward sliding speed of the rail vehicle is smaller than the rotating-speed difference value of the motor; when the speed value of the backward sliding speed of the rail vehicle is smaller than the rotating-speed difference value of the motor, the motor is controlled to output traction torque which corresponds to the rotating-speed difference of the motor and has the direction opposite to the backward sliding direction of the rail vehicle, and accordingly, the backward sliding speed of the rail vehicle is constantly reduced until the rail vehicle stops backward sliding and is started normally. Stable start of the rail vehicle at different backward sliding speeds is realized.

Description

technical field [0001] The invention relates to the field of rail vehicles, in particular to a start control method and device for rail vehicles. Background technique [0002] With the rapid development of our country's economy and the vigorous advancement of urbanization, the construction of rail transit is increasing significantly every year, and the driving environment of rail vehicles is becoming more and more complicated. It often happens that the rail vehicle is out of traction control during the start process on the ramp, and the vehicle moves backwards. Slip after the move happens. Therefore, how to ensure the normal start of rail vehicles in the event of backslip has become a research hotspot in the field of rail vehicle start control. [0003] In the prior art, when the rail vehicle is started on a ramp, the air brake is used to cooperate with the traction force of the motor. If the rail vehicle slips backwards, emergency braking will be triggered, the air brake w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L15/20
CPCB60L15/2081B60L2200/26Y02T10/72
Inventor 王永通甘韦韦梅文庆刘良杰刘勇徐绍龙董平黄浩郭维王文韬陈俊波毛康鑫
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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