Method and device for charging an energy store of a vehicle

摘要

When an energy store of a vehicle is charged via a charging device, a voltage (U) which is made available by the charging device, at a terminal of the vehicle, is measured. A charging current (I) which is made available by the charging device and which charges the energy store is regulated as a function of this voltage (U) in order to limit the power loss during charging.

主权项

1. A method for charging an energy store of a vehicle by a charging device, the method comprising:
measuring a charging voltage (U) provided by the charging device across a connection; and regulating a charging current (I) provided by the charging device and which charges the energy store as a function of the charging voltage (U) of the charging device in order to limit the power loss during charging, wherein the charging voltage (U) of the charging device across the connection is measured as an open-circuit voltage in the no-load state, wherein the charging current (I) is regulated as a function of a difference (dU) between the open-circuit voltage and the charger voltage (U) of the charging device which is currently measured across the connection, and wherein the charging current (I) is regulated to keep a ratio of the difference (dU) and the open-circuit voltage at a predetermined value.