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Motor train unit charger battery charging control method

A battery charging and control method technology, applied in battery/fuel cell control devices, electric vehicle charging technology, battery circuit devices, etc., can solve problems such as single function and inability to meet the battery charging control requirements of EMUs

Active Publication Date: 2020-12-01
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned existing charging control strategy only focuses on the state experienced by the battery during the charging process, and the function is relatively single, which cannot meet the charging control requirements of the EMU battery

Method used

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  • Motor train unit charger battery charging control method
  • Motor train unit charger battery charging control method
  • Motor train unit charger battery charging control method

Examples

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Embodiment Construction

[0035] Specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0036] An embodiment of the present invention provides a battery charging control method for an EMU charger, such as figure 1 shown, including:

[0037] (1) Identify the battery type: such as figure 2 As shown, according to the failure status of the temperature sensor installed on the battery and the communication status of the BMS system between the charger and the battery, the battery type is identified: if there is no fault in the temperature sensor installed on the battery, the battery type is identified as a storage battery; if the identification is set If the temperature sensor of the battery is faulty and the communication between the charger and the BMS system is normal, the battery type is identified as a lithium battery; if the temperature sensor installed on the battery is faulty and the communication between the charger and the BMS...

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Abstract

The invention relates to a motor train unit charger battery charging control method. The method comprises the steps that: a battery type is identified, specifically, the battery type is identified according to a fault state of a temperature sensor arranged in a battery and the communication state of a charger and a BMS system of the battery; if the identified battery type is a storage battery, a storage battery charging control strategy is executed to perform charging management on the storage battery; if the identified battery type is a lithium battery, the charger is in normal communicationwith the BMS system, and the BMS system detects that the lithium battery does not have a fault, a preset lithium battery charging control strategy is executed to perform charging management on the lithium battery; and if the battery type cannot be identified, the charger performs charging according to a preset minimum charging voltage reference value and a preset charging current reference value.According to the method, the battery type can be automatically identified, the corresponding charging control methods are specifically provided according to the identified different battery types, universality, integration and reliability are achieved, and the power supply requirement of a motor train unit is met to the maximum extent.

Description

technical field [0001] The invention belongs to the technical field of charging control of chargers, and in particular relates to a battery charging control method of a charger for an EMU. Background technique [0002] At present, the existing battery charging control strategies mainly include constant current charging, constant voltage charging and constant voltage limiting current charging according to the charging type; according to the different stages experienced in the charging process, it can be divided into two-stage charging and three-stage charging. The above-mentioned existing charging control strategy only focuses on the state experienced by the battery during the charging process, and its functions are relatively single, which cannot meet the charging control requirements of the EMU battery. [0003] However, the EMU battery has high requirements on the function of the charging control strategy of the charger. It is not only necessary to automatically identify t...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/42B61C3/02B60L53/20B60L58/10
CPCH02J7/00036H02J7/00047H02J7/0029H02J7/0048H02J7/0071H02J7/007194H02J7/007182H01M10/4257B61C3/02B60L53/20B60L58/10H01M2010/4271H01M2010/4278Y02T10/70Y02T10/7072Y02T30/00Y02T90/14Y02T90/16Y02E60/10
Inventor 李海洋朱友远沙琮田韩冰林鹏迟久鸣司宇航尹逊祥杨富志
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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