Motor-generator system for a motor vehicle with hybrid traction drive
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United States of America Patent
Stats
-
Mar 30, 2004
Grant Date -
Nov 21, 2002
app pub date -
Apr 29, 2002
filing date -
Apr 27, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A motor-generator system of a hybrid drive with an internal combustion engine (ICE) and an electric machine (EM) connected to an energy storage device (BA) via a converter device (CD). The motor-generator system can be used in addition to supply external power consumers (PC) in isolated operation, with little incremental complexity. For this purpose, the electric machine (EM) includes, in addition to a first stator winding (W1) for traction operation, a second stator winding (W2) for isolated generator operation. The second stator winding (W2) is advantageously coupled in transformer-fashion to the first stator winding (W1) and can thus be supplied with magnetizing current from the energy storage device (BA) via the converter device (CD).
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