The invention relates to a method for securely coupling an external voltage network to an operating voltage network, in particular of a motor vehicle. A switching unit (SE) is arranged between the operating voltage network (BN) and a connecting terminal (VK). The switching unit (SE) is connected to a control unit (SG) and the connecting terminal (VK) is designed for the connection of the foreign language network (FN). The method for safe coupling has the following features: DOLLAR A - generation of a pulse-shaped voltage at a connection terminal (VK) at least when the switch is open, DOLLAR A - during pulse pauses measurement of the voltage of the connected external voltage network at the connection terminal (VK), DOLLAR A - comparison of the measured values with the voltage or voltages of the operating voltage network (BN), DOLLAR A - on the basis of the comparison results control of the switching unit (SE). DOLLAR A In addition, the invention relates to a circuit arrangement for performing the described method.
展开▼
机译：用于将外部电压网络安全地耦合到尤其是机动车的工作电压网络的方法技术领域本发明涉及一种用于将外部电压网络安全地耦合到尤其是机动车辆的工作电压网络的方法。在工作电压网络（BN）和连接端子（VK）之间布置有开关单元（SE）。开关单元（SE）连接到控制单元（SG），并且连接端子（VK）设计用于外语网络（FN）的连接。安全耦合的方法具有以下特征：DOLLAR A-至少在开关断开时在连接端子（VK）上产生脉冲状电压; DOLLAR A-在脉冲暂停期间测量所连接外部电压的电压在连接端子（VK）上的电网，DOLLAR A-将测量值与工作电压网络（BN）的一个或多个电压进行比较，DOLLAR A-基于开关单元（SE）的比较结果控制。另外，本发明涉及一种用于执行所描述的方法的电路装置。
展开▼
