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    • 1. 发明申请
    • METHOD AND DEVICE FOR CHARGING A LOW-VOLTAGE BATTERY IN AN ELECTRIC DRIVE SYSTEM
    • 方法和设备装载的电力驱动系统的低电压电池
    • WO2012084131A2
    • 2012-06-28
    • PCT/EP2011006137
    • 2011-12-07
    • VOLKSWAGEN AGSTICHOWSKI TORSTENBAUMGARTH MARCO
    • STICHOWSKI TORSTENBAUMGARTH MARCO
    • B60L11/18
    • H02J7/1423B60L11/1812B60L11/1868H02J7/0013H02J7/0054Y02T10/7005Y02T10/7055Y02T10/7066Y02T10/7072Y02T10/92Y02T90/127Y02T90/14
    • The invention relates to a method and device (1) for charging a low-voltage battery (2) in an electric drive system, comprising at least one high-voltage battery (3), at least one low-voltage battery (2), at least one DC/DC converter (5, 11), units (6, 7) for determining the state of charge of the low-voltage battery (2) and of the high-voltage battery (3) and at least one control unit (8) for the DC/DC converter (5, 11), wherein the device has at least one connection (9) to an external voltage supply, wherein by means of the unit (6) the state of charge of the low-voltage battery (2) can be determined and can be compared with a threshold value and by means of the control unit (8) the connection (9) to the external voltage supply (10) can be checked, wherein depending upon the state of charge of the low-voltage battery (2) and the connection (9) to an external voltage supply (10) a charging path from the external voltage supply (10) via the DC/DC converter (5) to the low-voltage battery (2) can be activated by the control unit (8).
    • 本发明涉及(1)进行充电的电动驱动系统中的低电压电池(2)的方法和设备,包括至少一个高电压电池(3),至少一个低电压电池(2),至少一个DC / DC转换器(5,11) 的装置(6,7),用于确定充电低压电池(2)和所述高电压电池(3)和至少一个控制装置(8),用于将DC / DC转换器(5,11),所述设备包括至少一个连接的状态(9 )在外接电源,由(6)电荷的低电压电池(2)的可比较的可与阈值和确定的()的状态(经由到外部电源的连接(9)的控制装置8)10,检查该装置的装置, 其中,在对低压电池(2)的充电状态依赖性和外部电源的连接(9)(10)包括从经由DC / DC-WA外部电源(10)的充电路径 是解锁贸易商(5),用于低电压电池(2)由控制装置(8)。