High voltage start of an engine from a low voltage battery

Details High voltage start of an engine from a low voltage battery High voltage start of an engine from a low voltage battery

H - Electricity

02

M

H02M 7/00 (2006.01) F01D 19/00 (2006.01) F02N 11/04 (2006.01) H02J 7/00 (2006.01) H02M 3/00 (2006.01) H02P 9/08 (2006.01)

Patent

CA 2639100

Method and system are disclosed for starting a high voltage engine using a starter permanent magnet motor. The starter motor is powered using a DC power source remote from the starter motor. A bidirectional DC-to-DC converter local to the DC power source is used to produce a variable high voltage variable frequency power for driving the starter motor, and is remotely controlled to produce a controlled output current level. During generate mode the DC-DC converter may be used to charge the battery.

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