Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Delphi Automotive Systems Luxembourg S.a.

Joseph A Engel

Alexandre M Reis

Scott Gerber

A method for controlling a battery charger circuit of a vehicle. The method includes injecting a first current pulse between at least one line and a protective earth connection of the battery charger circuit. The method also includes measuring at least one line voltage value of at least one node of the battery charger circuit. The method also includes identifying a noise value by performing one or more operations on the battery charger circuit. The method also includes determining a protective earth connection impedance based on the at least one line voltage value and the noise value.

Systems and methods for noise cancellation in protective earth resistance check of vehicle onboard battery charger

An electrically powered vehicle system includes a DC/DC converter stage with a rectified input terminal which receives a rectified input from an AC power input. The system also includes a vehicle battery which receives power output from the DC/DC converter stage, via a first link between the rectified input terminal and the DC/DC converter stage. A second link is connected to the first link and to a vehicle device.

Electrical vehicle system

A method for detecting a fault in a battery charger circuit of a vehicle includes determining, based on at least one expected voltage value of an incoming alternating current source, a first threshold. The method also includes measuring at least one line voltage value associated with the incoming alternating current source that provides power to the battery charger circuit. The method also includes determining whether the measured at least one line voltage value is greater than the first threshold. The method also includes in response to a determination that the measured at least one line voltage value is greater than the first threshold, disconnecting the battery charger circuit from and/or preventing the battery charger circuit from connecting to the incoming alternating current source after a first predetermined period.

Systems and methods for monitoring voltage of vehicle onboard battery charger

A vehicle electrical system including a battery, the terminals of which supply positive and negative power rails, the battery being connected to one or more vehicle devices to supply power or charging thereto. The devices include capacitors. The system also includes at least one heating device and a switch to allow capacitor discharge to flow through the heating device.

Electrical vehicle system to discharge capacitors

An electrically powered vehicle system including a battery, the terminals of which supply positive and negative power rails, and including a bulk capacitor located in series with a switching device, and being electrically connected between the power rails. A heater having a heating resistance is connected in series with a heater switch, and is electrically connected between the power rails. A link is electrically connected between a point between the bulk capacitor and the switching device to a point between heating resistance and the heater switch.

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Differdange, Luxembourg

Joseph A Engel