Electric motor efficiencies?

[black2003cobra]

Anyone know the efficiency of the electric motor in a typical hybrid car? (Mech power out)/(Electric power in).

Thanks!

 

[black2003cobra]

Sorry this ended up in the wrong forum. If there are any moderators here, please move it to the engines forum. Thanks!

 

[GregLocock]

90-95% peak
But as you know, the efficiency of an electric motor varies substantially over the complete map of torque and speed.

Cheers

Greg Locock

SIGlease see FAQ731-376 for tips on how to make the best use of Eng-Tips.

 

[black2003cobra]

That's pretty good. Any chance you can provide any links or references for typical maps, Greg?

Thanks,
Eric

 

[DanEE]

Read this...

http://www.ornl.gov/~webworks/cppr/y2001/rpt/121813.pdf

http://home.4x4wire.com/deddleman/

 

[DanEE]

additional test data...

http://www.osti.gov/bridge/servlets/purl/921782-P6pEcS/921782.PDF