Patent ID: 8884460
Filing Date: 2014-11-11
Classification: B60L,H02J,Y02T

Abstract:
1. An emergency energy supply device for providing an emergency energy supply for a hybrid vehicle, the hybrid vehicle including a high-voltage battery adapted to drive an electric drive, and a low-voltage battery, comprising: an energy store electrically connectible to at least one of (a) the high-voltage battery and (b) the low-voltage battery and configured to provide the emergency energy supply; a voltage converter; a first diode including a cathode connected to a terminal of the energy store and an anode electrically connectible to the low-voltage battery; a second diode including a cathode connected to the terminal of the energy store and an anode coupled to an output terminal of the voltage converter; and a controllable switch electrically coupled to an input terminal of the voltage converter and electrically connectible to the high-voltage battery.