Apparatus for generating and distributing electrical power to loads in a vehicle
First Claim
1. An apparatus for generating and distributing electrical power in a vehicle having at least one electric drive motor connected via a converter to a fuel cell unit, said fuel cell unit being connected to at least one first voltage network, one second voltage network and one third voltage network, wherein each of said voltage networks includes at least one of at least one associated electrical load and at least one associated energy store, with the first voltage network being connected via a first bidirectional DC/DC converter to the second voltage network wherein, the first bidirectional DC/DC converter provides DC isolation between the first voltage network and the second voltage network, and wherein the second voltage network is connected via a second bidirectional converter to the third voltage network.
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Accused Products
Abstract
An apparatus for generating and distributing electrical power in a vehicle which has at least one electric drive motor connected via a converter to a fuel cell unit, with the fuel cell unit being connected to at least one first, one second and one third voltage network, and with each voltage network having at least one associated electrical load and/or at least one associated energy store. The first voltage network is formed by the fuel cell voltage network and is connected via a first bidirectional DC/DC converter to the second voltage network and the first bidirectional DC/DC converter provides DC isolation between the first voltage network and the second voltage network. The second voltage network is connected via a second bidirectional converter to the third voltage network.
51 Citations
14 Claims
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1. An apparatus for generating and distributing electrical power in a vehicle having at least one electric drive motor connected via a converter to a fuel cell unit, said fuel cell unit being connected to at least one first voltage network, one second voltage network and one third voltage network, wherein each of said voltage networks includes at least one of at least one associated electrical load and at least one associated energy store, with the first voltage network being connected via a first bidirectional DC/DC converter to the second voltage network wherein,
the first bidirectional DC/DC converter provides DC isolation between the first voltage network and the second voltage network, and wherein the second voltage network is connected via a second bidirectional converter to the third voltage network.
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14. A vehicle electrical power generating and distribution system comprising:
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a fuel cell unit;
at least one electric drive motor connected to a converter;
a first voltage network connected between said converter and said fuel cell unit wherein said first voltage network is also connected to a first bidirectional DC/DC converter;
a second voltage network connected to said first bidirectional DC/DC converter wherein said first directional DC/DC converter provides DC isolation between said first voltage network and said second voltage network;
a third voltage network; and
a second bidirectional converter connected between said second voltage network and said third voltage network, wherein each of said first, second and third voltage networks are connected to one of at least one electric load and an energy store.
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Specification