Train energy-saving driving curve dynamic optimization method and system

A dynamic optimization, train technology, applied in automatic systems, operation center control systems, transportation and packaging, etc., can solve the problems of complex calculation, difficult to meet real-time requirements of complex algorithms, limited computing speed and storage capacity, etc.

Active Publication Date: 2022-02-15
CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main problem of existing optimal driving curve optimization methods lies in their complex calculations under resource-constrained conditions
The computing speed and storage capacity of the current automatic train driving system are limited, and complex algorithms are often difficult to meet the real-time requirements of its computing

Method used

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  • Train energy-saving driving curve dynamic optimization method and system
  • Train energy-saving driving curve dynamic optimization method and system
  • Train energy-saving driving curve dynamic optimization method and system

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Embodiment Construction

[0079] In order to make the objects, technical solutions, and advantages of the present invention more clearly, the technical solutions in the embodiments in the embodiments will be described in contemplation in the embodiment of the present invention, and will be described in connext of the embodiment of the present invention. It is an embodiment of the invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art are in the range of the present invention without making creative labor premise.

[0080] In the present embodiment, first, based on the train travel process, the speed-position curve is drawn, and the graph model is constructed, the main principle of the train operation curve model is to generate forward and direction for each speed-position status point. The rear speed curve, the curve consists of five optimal driving conditions "maximum traction, traction cruise, idle, br...

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Abstract

The invention provides a train energy-saving driving curve dynamic optimization method and a system, and the method comprises the steps: constructing a high-dimensional map network based on space-time decomposition through combining an electric train model, relying on a Pincare extreme value principle, and combining a working condition set of maximum traction-traction cruising-coasting-braking cruising-maximum braking of train optimal driving; taking discretized 'time-space-energy' state points as nodes, adopting a multi-dimensional complex resource for describing a connecting arc between the nodes, and abstracting a single-train optimal control problem into a shortest path travel problem with time window constraint. The method disclosed by the invention is small in calculation amount, meets the real-time calculation requirement of the system, and can be directly applied to a train energy-saving driving curve optimization system so as to solve the problems that the calculation speed and the storage capacity of a current train automatic driving system are limited, and a complex algorithm is often difficult to meet the real-time requirement of calculation.

Description

Technical field [0001] The present invention belongs to the technical field of rail train, and more particularly to a train energy-saving driving curve dynamic optimization method and system. Background technique [0002] During the actual train operation, trains may deviate from the original planned energy-saving operation trajectory from the raw planning of the raw plan, and it needs to dynamically optimize the train driving curve. Therefore, based on the safe and reliable operation of the train, the dynamic optimization of the research trains has important significance. [0003] In the prior art, the use of great value principle is used to study the energy saving problem. Linear processing of train operation is conducted, and the feasible domain of the versus speed track curve under different control variables is analyzed. Excellent energy saving control problem. Further, an internal combustion trail considering a speed limit is also studied, and the optimal traveling-idling l...

Claims

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Application Information

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IPC IPC(8): B61L27/16B61L27/14B61L27/40B61L27/04
CPCB61L27/04
Inventor 叶昊周昊江明王佳孙新亚陈志强董炜葛鹭明翟守超王祺吉吟东
Owner CRSC RESEARCH & DESIGN INSTITUTE GROUP CO LTD
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