EP 1047874 A1 20001102 - ELECTRIC MOTOR WITH DRIVE
Title (en)
ELECTRIC MOTOR WITH DRIVE
Title (de)
ELEKTRISCHE MASCHINE MIT GETRIEBE
Title (fr)
MOTEUR ELECTRIQUE AVEC ENGRENAGE
Publication
Application
Priority
- DE 9903522 W 19991104
- DE 19852607 A 19981114
- DE 19927521 A 19990616
Abstract (en)
[origin: US6409622B1] The synchronous or asynchronous electrical machine for an internal combustion engine can operate alternately in a starter mode during engine starting and a generator mode during engine operation in order to eliminate the need for a separate starter and generator. The electrical machine includes a two-stage planetary gear device coupled to a shaft of the internal combustion engine. The two-stage planetary gear device includes two stages with ring gears and respective braking devices assigned to the two stages that prevent the ring gears of those stages from rotating when engaged therewith. The two-stage planetary gear device operates with different gear ratios in the starter mode and the generator mode. The gear ratio in the starter mode is between 4 and 60 and between 1.6 and 4 in the generator mode. The ratio of the gear ratios in the starter mode and the generator mode must be at least two.
IPC 1-7
IPC 8 full level
F02N 11/00 (2006.01); F02N 11/04 (2006.01); F02N 15/02 (2006.01); F02N 15/04 (2006.01)
CPC (source: EP US)
F02N 11/04 (2013.01 - EP US); F02N 15/046 (2013.01 - EP US)
Citation (search report)
See references of WO 0029744A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 6409622 B1 20020625; BR 9906923 A 20001010; EP 1047874 A1 20001102; EP 1047874 B1 20040728; JP 2002530570 A 20020917; JP 4582607 B2 20101117; WO 0029744 A1 20000525
DOCDB simple family (application)
US 60008900 A 20001101; BR 9906923 A 19991104; DE 9903522 W 19991104; EP 99963199 A 19991104; JP 2000582709 A 19991104