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1. CN106080239 - Charging control method for low-voltage storage battery of electric vehicle and electric vehicle

Office
Chine
Numéro de la demande 201610515448.6
Date de la demande 01.07.2016
Numéro de publication 106080239
Date de publication 09.11.2016
Type de publication A
CIB
B60L 11/18
BTECHNIQUES INDUSTRIELLES; TRANSPORTS
60VÉHICULES EN GÉNÉRAL
LPROPULSION DES VÉHICULES À TRACTION ÉLECTRIQUE; FOURNITURE DE L'ÉNERGIE ÉLECTRIQUE À L'ÉQUIPEMENT AUXILIAIRE DES VÉHICULES À TRACTION ÉLECTRIQUE; SYSTÈMES DE FREINS ÉLECTRODYNAMIQUES POUR VÉHICULES, EN GÉNÉRAL; SUSPENSION OU LÉVITATION MAGNÉTIQUES POUR VÉHICULES; CONTRÔLE DES PARAMÈTRES DE FONCTIONNEMENT DES VÉHICULES À TRACTION ÉLECTRIQUE; DISPOSITIFS ÉLECTRIQUES DE SÉCURITÉ POUR VÉHICULES À TRACTION ÉLECTRIQUE
11Propulsion électrique par source d’énergie intérieure au véhicule
18utilisant de l'énergie fournie par des piles primaires, des piles secondaires ou des piles à combustibles
CPC
B60L 58/20
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
58Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
10for monitoring or controlling batteries
18of two or more battery modules
20having different nominal voltages
Y02T 10/70
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
10Road transport of goods or passengers
60Other road transportation technologies with climate change mitigation effect
70Energy storage systems for electromobility, e.g. batteries
Déposants BAIC BJEV CO., LTD.
Inventeurs CAO MINWEI
ZHANG KAI
MA BO
WU JIEWEI
Titre
(EN) Charging control method for low-voltage storage battery of electric vehicle and electric vehicle
(ZH) 电动车辆的低压蓄电池充电控制方法和电动车辆
Abrégé
(EN)
The invention discloses a charging control method for a low-voltage storage battery of an electric vehicle. The electric vehicle comprises a high-voltage power supply, the low-voltage storage battery and a power supply converter. The power supply converter is connected with the high-voltage power supply and the low-voltage storage battery. The charging control method comprises the following steps that current operating modes of the electric vehicle are detected by a whole vehicle controller of the electric vehicle, wherein the operating modes comprise the driving mode and the parking mode; if the electric vehicle is in the parking mode, the whole vehicle controller obtains electric quantity information of the low-voltage storage battery at preset time intervals after the high-voltage power supply stops high voltage output; and when the electric quantity of the low-voltage storage battery is lower than a charging threshold value lower limit, the whole vehicle controller controls start-up of the power supply converter to convert high voltage electricity into low voltage electricity in order to charge the low-voltage storage battery. The charging control method for the low-voltage storage battery can lower a power-lack risk which occurs in the low-voltage storage battery when the electric vehicle is in the parking mode. The invention further discloses the electric vehicle.

(ZH)
本发明公开了一种电动车辆的低压蓄电池充电控制方法,其中,电动车辆包括高压电源、低压蓄电池和电源转换器,电源转换器分别与高压电源和低压蓄电池相连,充电控制方法包括以下步骤:电动车辆的整车控制器检测电动车辆当前的运行模式,其中,运行模式包括行车模式和停车模式;如果电动车辆处于停车模式,则在高压电源停止高压输出之后,整车控制器每隔预设时间获取低压蓄电池的电量信息;当低压蓄电池的电量低于充电下限阈值时,整车控制器控制电源转换器启动以将高压电转换为低压电,以为低压蓄电池充电。该低压蓄电池充电控制方法可以降低电动车辆在停车模式时低压蓄电池出现亏电的风险。本发明还公开了一种电动车辆。