US 12,103,415 B2
Apparatus for increasing an input voltage for an electric vehicle, electric vehicle and method for operating an apparatus
Zbynek Stepan, Plzen (CZ); Frank Seemann, Euerbach (DE); Andre Ehrsam, Bergrheinfeld (DE); Martin Mach, Plzen (CZ); Vladimir Dvorak, Plzen (CZ); Gabriel Scherer, Deggenhausertal (DE); Tato Gervais Amani, Nuremberg (DE); and Matthias Engicht, Markdorf (DE)
Assigned to ZF FRIEDRICHSHAFEN AG, Friedrichshafen (DE)
Filed by ZF FRIEDRICHSHAFEN AG, Friedrichshafen (DE)
Filed on Apr. 19, 2022, as Appl. No. 17/723,834.
Claims priority of application No. 10 2021 203 969.3 (DE), filed on Apr. 21, 2021.
Prior Publication US 2022/0340028 A1, Oct. 27, 2022
Int. Cl. B60L 53/22 (2019.01); B60L 53/62 (2019.01); H02M 3/335 (2006.01); H02M 7/5387 (2007.01)
CPC B60L 53/22 (2019.02) [B60L 53/62 (2019.02); H02M 3/33573 (2021.05); H02M 3/33576 (2013.01); H02M 7/5387 (2013.01); B60L 2210/10 (2013.01); B60L 2210/42 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An apparatus for increasing an input voltage, comprising:
an energy supply interface configured to connect the apparatus to a vehicle battery of an electric vehicle and/or to a vehicle fuel cell of the electric vehicle;
a DC-DC converter having a first connection configured to connect the DC-DC converter to the energy supply interface and a second connection configured to connect the DC-DC converter to an inverter, wherein the DC-DC converter is designed to supply an output voltage at the second connection in response to an amplifier signal, the output voltage being increased with respect to the input voltage applied to the first connection;
an inverter connection of the inverter configured to connect the inverter to the second connection; and
at least one energization interface of the inverter configured to energize at least one unit coupled to the at least one energization interface,
wherein the inverter is configured to convert a DC voltage applied at the inverter connection to an AC voltage and to supply same to the at least one energization interface,
wherein the DC-DC converter supplies the output voltage at the second connection, the output voltage corresponding to the input voltage when the amplifier signal is not present,
wherein the DC-DC converter has a third connection for connecting the DC-DC converter to a further inverter, wherein the DC-DC converter is designed to furthermore supply the output voltage at the third connection in response to the amplifier signal, the output voltage being increased with respect to the input voltage applied to the first connection.