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    • 3. 发明申请
    • ELECTRIC TRACTION DRIVE FOR VEHICLE WITH FAULT-CURRENT PROTECTION IN THE DC INTERMEDIATE CIRCUIT
    • 电力牵引驱动器,用于车辆,故障电流保护直流电源之间的短路
    • WO2006058824A3
    • 2006-08-10
    • PCT/EP2005055897
    • 2005-11-11
    • BOSCH GMBH ROBERTTRUNK MARTINWAGNER ARNDT
    • TRUNK MARTINWAGNER ARNDT
    • H02H3/16G01R27/18
    • B60L3/0069B60K6/485B60L3/0023B60W10/08B60W20/00H02H3/202H02H3/325Y02T10/6226
    • The invention relates to a fault-current protective circuit which is preferably integrated into a vehicle on-board supply system, especially a multiple-voltage on-board supply system, on the high voltage side, and operates without current measurement. The fault current is determined in an evaluation logic system by evaluating two voltages. Said two voltages are voltages that fall on two high-impedance resistances located respectively between a connection between the battery and the generator and earth. If the evaluation logic system detects a fault current, the two connections between the battery and the generator and or the on-board supply system are cut. In addition, in conjunction with a dual-voltage on-board supply system comprising two partial on-board supply systems connected by means of a DC voltage converter, a voltage-dependent circuit can be mounted in parallel to the DC voltage converter, said parallel circuit being used to ground the high voltage side in the event of error.
    • 提供了一种故障电流保护电路,其优选在车辆电气系统安装高电压侧,特别是多电压车载电气系统和无电流测量操作。 故障电流是在评估逻辑单元由两个电压的评估来确定。 这两个电压是电压,其下降到两个高值电阻器,每个位于所述电池和所述发电机和地之间的连接之间。 识别评估逻辑的故障电流,它在电池和发电机或机载网络之间两个连接分离。 另外,可以与具有两个经由电气系统的DC-DC转换器部连接的两电压车载电气系统连接被提供用于DC-DC转换器的电压依赖性电路的并联电路,所述高电压侧被拉到地与故障发生。