Direct Electrical Connection and Transmission Coupling for Multi-Motor Hybrid Drive System
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United States of America Patent
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N/A
Issued Date -
Jul 26, 2012
app pub date -
Dec 23, 2011
filing date -
Jun 25, 2009
priority date (Note) -
Abandoned
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Abstract
A system of electric power management for a hybrid vehicle includes an engine, a first inverter, a first electric machine coupled to the engine and the first inverter, and a first transmission coupled between the engine and the first electric machine. The first transmission has a transmission speed ratio operable such that the first electric machine operating speed operates independent of an engine operating speed. A second electric machine is coupled to the second inverter and a wheel axle of the vehicle. A high voltage battery is coupled to both the first inverter and the second inverter. A switch box is disposed between the first electric machine and the second electric machine. The switch box includes switches adapted to switch open and closed to allow direct electrical connection from the first electric machine to the second electric machine.
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