Device for supplying power to a two-voltage vehicle electrical system equipped with safety-relevant components
First Claim
1. Device for supplying energy to a two-voltage vehicle electrical systemwith an integrated starter-generator (ISG) mechanically coupled to an internal combustion engine (BKM), downstream from which is connected a bidirectional AC/DC-converter, of which the DC terminalis connected via first switch (S1) to a first accumulator (B1) which supplies a first vehicle electric system and its loads (V1) with power, andis connected via a second switch (S2) to a double-layer capacitor (DLC),is connected to a bidirectional DC/DC converter (2), downstream from which a second accumulator (B2) is connected, which supplies a second vehicle electrical system and its loads (v2) with power, andwith a control/regulation circuit, which controls/regulates the operational sequences of this device—
- the determination of the direction of operation of the converters(1, 2), the charging of the sources of energy (B1, B2, DLC) and the switch positions of all switches,characterized in that the bidirectional DC/DC converter (2) is directly connected to the DC terminal of the bidirectional AC/DC converter (1), a first safety switch (X1) is provided, via which power is supplied to safety relevant components (V1s) by the integrated starter-generator (ISG) via the bidirectional AC/DC converter (1) or alternatively by the second accumulator (B2) via the bidirectional DC/DC converter (2),a second safety switch (X2) is provided, via which power is supplied to safety-relevant components (V1s) by the double-layer capacitor (DLC), and a third safety switch (X3) is provided, via which power is supplied to safety-relevant components (V1s) by the first accumulator (B1).
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Accused Products
Abstract
Device for supplying power to a two-voltage vehicle electrical system equipped with safety-relevant components with an integrated starter-generator mechanically coupled with an internal combustion engine BKM, a double-layer capacitor DLC, a first and second energy accumulator B1, B2, with power being able to be supplied to safety-relevant components V1s via three safety switches X1 to X3, alternately by the starter-generator ISG, the double-layer capacitor DLC, the first or the second energy accumulator B1, B2.
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Citations
7 Claims
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1. Device for supplying energy to a two-voltage vehicle electrical system
with an integrated starter-generator (ISG) mechanically coupled to an internal combustion engine (BKM), downstream from which is connected a bidirectional AC/DC-converter, of which the DC terminal is connected via first switch (S1) to a first accumulator (B1) which supplies a first vehicle electric system and its loads (V1) with power, and is connected via a second switch (S2) to a double-layer capacitor (DLC), is connected to a bidirectional DC/DC converter (2), downstream from which a second accumulator (B2) is connected, which supplies a second vehicle electrical system and its loads (v2) with power, and with a control/regulation circuit, which controls/regulates the operational sequences of this device— - the determination of the direction of operation of the converters(1, 2), the charging of the sources of energy (B1, B2, DLC) and the switch positions of all switches,
characterized in that the bidirectional DC/DC converter (2) is directly connected to the DC terminal of the bidirectional AC/DC converter (1), a first safety switch (X1) is provided, via which power is supplied to safety relevant components (V1s) by the integrated starter-generator (ISG) via the bidirectional AC/DC converter (1) or alternatively by the second accumulator (B2) via the bidirectional DC/DC converter (2), a second safety switch (X2) is provided, via which power is supplied to safety-relevant components (V1s) by the double-layer capacitor (DLC), and a third safety switch (X3) is provided, via which power is supplied to safety-relevant components (V1s) by the first accumulator (B1). - View Dependent Claims (2, 3, 4, 5, 6, 7)
- the determination of the direction of operation of the converters(1, 2), the charging of the sources of energy (B1, B2, DLC) and the switch positions of all switches,
Specification