Target speed calculation method fusing actual operation capability of vehicle

A target speed and actual operation technology, applied in the field of rail transit, can solve problems such as overspeed or overstop of braking characteristics, efficiency and capacity problems, and achieve the effect of shortening the driving interval, increasing the travel speed, and increasing the cruising speed

Pending Publication Date: 2022-07-29
浙江众合科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such a process, there may be two obvious defects in the calculation and following of the speed curve: first, efficiency and capacity problems caused by traction characteristics or faults; second, overspeed caused by braking characteristics or faults or stop problem

Method used

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  • Target speed calculation method fusing actual operation capability of vehicle
  • Target speed calculation method fusing actual operation capability of vehicle
  • Target speed calculation method fusing actual operation capability of vehicle

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Embodiment Construction

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] ATO (English called AutomaTIc Train OperaTIon) train automatic running device, also known as train automatic driving system. The main functions of ATO are: acceleration, cruising, deceleration, precise parking, and automatic opening of train doors and platfo...

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Abstract

The invention discloses a target speed calculation method fusing the actual operation capability of a train. The method comprises the following steps: obtaining the real-time traction and braking states of the train; in the cruising and coasting stages, the ATO calculates and updates the minimum difference value which can be reached by the current maximum limiting speed and the EB limiting speed in real time according to the traction capacity of a train, and generates an ATO maximum operation target curve according to the minimum difference value; in the braking stage and the stopping stage, if partial braking of the train is lost, the braking capacity is reduced, and the ATO adjusts the braking curve and the stopping curve in real time according to the current braking capacity of the train. According to the method, the curve can be planned in advance according to the real-time traction and braking states, lag control caused by speed feedback is prevented, and the cruising speed and the traveling speed can be improved and the traveling interval can be shortened in the interval cruising stage by utilizing the traction characteristics.

Description

technical field [0001] The invention belongs to the technical field of rail transit, and in particular relates to a target speed calculation method integrating the actual running capability of a vehicle. Background technique [0002] In order to realize automatic speed control, ATO will calculate in real time a speed limit based on the speed limit of the line, the EB limit speed of ATP, the information of the target deceleration point ahead, the target parking point information of the platform ahead, combined with the acceleration / deceleration parameter value of the vehicle and the comfort of the passengers. The highest running target curve to follow. [0003] When ATO calculates the highest running target curve, the acceleration / deceleration value used is the static parameter given by the vehicle. In the actual vehicle control process, the effect of the output traction braking control quantity is inferred according to the change of the vehicle speed, and the subsequent spe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L27/20B61L23/08
CPCB61L23/08
Inventor 吴苏娇林宏泉杨莉齐进宽
Owner 浙江众合科技股份有限公司
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