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A battery online warning device and method for new energy rail locomotives

A rail locomotive and new energy technology, applied in battery/fuel cell control devices, motor vehicles, measuring devices, etc., can solve problems such as inaccuracy and insufficient early warning, so as to improve timeliness, improve reliability, and solve detection errors. Effect

Active Publication Date: 2021-07-20
国网江苏综合能源服务有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide an online battery early warning system for new energy rail locomotives in order to solve the above-mentioned problems in the prior art that the early warning is not timely enough and not accurate enough. By comprehensively studying and judging factors such as the short circuit state of the battery and the risk of thermal runaway, Comprehensively consider factors such as battery cell temperature, battery compartment temperature, battery compartment interior gas concentration, car body exterior body gas concentration, battery cell internal short-circuit characteristic value, etc., objectively evaluate battery status, and improve battery warning timeliness and accuracy

Method used

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  • A battery online warning device and method for new energy rail locomotives
  • A battery online warning device and method for new energy rail locomotives
  • A battery online warning device and method for new energy rail locomotives

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Embodiment 1

[0069] A battery online warning system for new energy rail locomotives, comprising the following steps:

[0070] Step 1: Collect early warning information. The early warning information includes battery cell temperature, battery compartment temperature, battery compartment gas concentration, body gas concentration outside the car body, and short circuit characteristic value in the battery cell;

[0071] Step 2: Based on the short-circuit characteristic value of the battery cell, judge whether the battery is in a short-circuit state through the deviation combination formula. If the battery is in a short-circuit state, judge that the thermal runaway risk warning level is level one, and directly enter step6; otherwise, enter step3;

[0072] Step 3: Determine whether the risk of thermal runaway is caused by external gas or the battery itself based on the temperature of the battery cell, the gas concentration in the battery compartment, and the gas concentration outside the car body...

Embodiment 2

[0117] The present invention also provides a device for battery on-line early warning method of new energy rail locomotive, including temperature collection system, smoke gas collection system, short-circuit characteristic resistance identification system in battery cells, fire extinguishing system, alarm system and DSP-based control system,

[0118] The temperature acquisition system includes a battery cell temperature identification unit and a battery compartment temperature identification unit, and the temperature information collected by the temperature acquisition system is transmitted to the control system through the CAN bus protocol; the temperature acquisition system includes a temperature sensor, and the temperature sensor has 2 groups, choose T100 chip temperature sensor and PT100 temperature sensor, the temperature sensor and the aluminum shell cell are fixed together on the steel bar and vertically installed on the inner side above the battery, and the temperature ...

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Abstract

The invention provides an online battery early warning system for new energy rail locomotives. The method includes the following steps: Step 1: collecting early warning information; Step 2: judging whether the battery is in a short circuit state, and if the battery is in a short circuit state, judging the risk of thermal runaway If the warning level is level 1, go directly to step 6; otherwise, go to step 3; step 3: determine whether the risk of thermal runaway is caused by external gas or the battery itself, determine whether it is caused by external gas, go to step 4, determine whether it is caused by its own factors, go to Step 5; Step 4: Based on the temperature threshold, determine the early warning level of thermal runaway risk; Step 5: judge the early warning level of thermal runaway risk through the hierarchical early warning formula group; Step 6: Perform early warning and fire extinguishing operations. The present invention also provides a device capable of realizing the above method. The present invention evaluates the state of the battery objectively and grades, which is timely and accurate.

Description

technical field [0001] The invention relates to the field of new energy batteries, in particular to a battery online warning device and method for new energy rail locomotives. Background technique [0002] In my country, the railway transportation industry is the basic industry of the national economy, occupies a backbone position in the transportation system, and plays a strong supporting role in the development of the national economy. Taking typical industries such as iron and steel, mining, petrochemicals, and ports as examples, freight rail locomotives in enterprises are an important part of industrial production and transportation operations. [0003] In the field of freight rail locomotives, it is mainly divided into electric locomotives and internal combustion engine locomotives. 1) The conventional electric locomotive adopts the technical route of taking power from the catenary, which is suitable for long-distance fixed-line freight transportation. However, in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/48H01M10/42B60L58/10G01D21/02G01R31/382G01R31/385G01R31/389A62C3/07A62C3/16A62C37/36
CPCA62C3/07A62C3/16A62C37/36B60L2200/26B60L58/10G01D21/02G01R31/382G01R31/385G01R31/389H01M10/425H01M10/4285H01M10/48H01M10/486Y02E60/10Y02T10/70
Inventor 周显威王德顺樊森杨波吴福保戴正洲王开毅耿瑶
Owner 国网江苏综合能源服务有限公司
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