Battery charging control method for EMU charger
A battery charging and control method technology, which is applied in the direction of battery/fuel cell control devices, electric vehicle charging technology, battery circuit devices, etc., can solve the problems of inability to meet the battery charging control requirements of EMUs, single functions, etc., to ensure sustainable performance, meet the power supply demand, and prevent overcharge failure
Active Publication Date: 2022-04-12
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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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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[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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The invention relates to a battery charging control method for a charger for an EMU, comprising: identifying the battery type: identifying the battery type according to the failure status of a temperature sensor installed on the battery and the communication status of the BMS system between the charger and the battery; if the identified battery type If the identified battery type is a lithium battery, the communication between the charger and the BMS system is normal, and the BMS system detects that there is no fault in the lithium battery, then execute the preset lithium battery charging control The strategy manages the charging of lithium batteries; if the battery type cannot be identified, the charger will charge according to the preset minimum charging voltage reference value and preset charging current reference value. The method can automatically identify the battery type, and specifically provide the corresponding charging control method according to the identified different battery types.
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...
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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