Circuit arrangement for operating an electrical machine in a motor vehicle with provision of a DC voltage

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United States of America Patent

PATENT NO 10293695
APP PUB NO 20180029484A1
SERIAL NO

15550162

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The present invention relates to a circuit arrangement (100) for operating an electrical machine (101) in a motor vehicle, having a first electrical drive train (103-1) in which a first battery direct converter (105-1) can be connected to the electrical machine (101) via a first switching device (107-1); a second electrical drive train (103-2) in which a second battery direct converter (105-2) can be connected to the electrical machine (101) via a second switching device (107-2); a third electrical drive train (103-3) in which a third battery direct converter (105-3) is connected to the electrical machine (101), one converter connection of which can be connected to the second drive train (103-2) via a third switching device (107-3) and the other converter connection of which can be connected to the second drive train (103-2) via a fourth switching device (107-4); a DC voltage section (109) for providing a DC voltage for a vehicle electrical system, which DC voltage section is connected to the first, second and third drive trains (103-1, 103-2, 103-3) via a rectifier (111-1, 111-2, 111-3) in each case; and a charging section (113) for supplying a charging current to the first, second and third battery direct converters (105-1, 105-2, 105-3), which charging section is connected to the first drive train (103-1) and to the third drive train (103-3).

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Patent Owner(s)

Patent OwnerAddress
ROBERT BOSCH GMBHPOSTFACH 30 02 20 STUTTGART 70442

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boesing, Matthias Ludwigsburg, DE 4 1
Heil, Matthias Moeglingen, DE 7 30
Rogov, Rostislav Stuttgart, DE 3 3
Ross, Alexander Darmstadt, DE 17 655

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