Electric drive system, especially for vehicles
First Claim
1. An electric drive system for vehicles, comprising:
- a first drive motor and a second drive motor each subdivided into at least a first partial motor and a second partial motor;
a generator driven by a combustion engine, the generator subdivided into at least a first partial generator and a second partial generator;
a first power electronics unit associated with the first drive motor and subdivided into at least a first partial power electronics unit associated with the first partial motor of the first drive motor and a second partial power electronics unit associated with the second partial motor of the first drive motor;
a second power electronics unit associated with the second drive motor and subdivided into at least a first partial power electronics unit associated with the first partial motor of the second drive motor and a second partial power electronics unit associated with the second partial motor of the second drive motor;
a third power electronics unit associated with the generator and subdivided into at least a first partial power electronics unit associated with the first partial generator and a second partial power electronics unit associated with the second partial generator;
a first drive circuit comprising the first partial power electronics units of the first, second, and third power electronics units;
a second drive circuit comprising the second partial power electronics units of the first, second, and third power electronics units;
a first master system control unit associated with at least the first drive circuit;
a second master system control unit associated with at least the second drive circuit, the first and second master system control units being connected to one another via an information exchange channel;
a first operating element connected to the first master system control unit and a second operating element connected to the second master system control unit; and
a detector adapted to detect a failure in at least one of the first drive circuit and the second drive circuit.
2 Assignments
0 Petitions
Accused Products
Abstract
For enhancing the operational safety of an electric drive unit of a vehicle comprising a generator, which is operated by a combustion machine, and drive motors, which are connected to said generator via a direct-voltage intermediate circuit, the generator and drive motors are each subdivided into partial units, and these partial units have partial power electronics units associated therewith. The mutually corresponding partial units of generator, motors and power electronics units each constitute a drive circuit of their own, with control signals being supplied to components thereof by a specifically assigned system control unit. The system control units that are interconnected via an information exchange channel can undertake compensation measures in their drive circuit or in the other drive circuits in the event of a complete or partial failure of a drive circuit. As an alter-native to the assignment of one system control unit at a time to a drive circuit, here may also be several system control units connected to the individual drive circuits via bus connections or via multiple single channels.
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Citations
20 Claims
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1. An electric drive system for vehicles, comprising:
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a first drive motor and a second drive motor each subdivided into at least a first partial motor and a second partial motor; a generator driven by a combustion engine, the generator subdivided into at least a first partial generator and a second partial generator; a first power electronics unit associated with the first drive motor and subdivided into at least a first partial power electronics unit associated with the first partial motor of the first drive motor and a second partial power electronics unit associated with the second partial motor of the first drive motor; a second power electronics unit associated with the second drive motor and subdivided into at least a first partial power electronics unit associated with the first partial motor of the second drive motor and a second partial power electronics unit associated with the second partial motor of the second drive motor; a third power electronics unit associated with the generator and subdivided into at least a first partial power electronics unit associated with the first partial generator and a second partial power electronics unit associated with the second partial generator; a first drive circuit comprising the first partial power electronics units of the first, second, and third power electronics units; a second drive circuit comprising the second partial power electronics units of the first, second, and third power electronics units; a first master system control unit associated with at least the first drive circuit; a second master system control unit associated with at least the second drive circuit, the first and second master system control units being connected to one another via an information exchange channel; a first operating element connected to the first master system control unit and a second operating element connected to the second master system control unit; and a detector adapted to detect a failure in at least one of the first drive circuit and the second drive circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification