Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post

Christ · 09-02-2009, 01:32 AM

The question about overspeeding came when I suggested a gear driven application which used a lower power lower weight motor coupled to the driveshaft via gear/chain in reduction.

If the max RPM of the motor was 6000 RPM, and it could only propel the vehicle up to 20 MPH at max RPM, anything faster than that (vehicle speed) would overspeed the e-motor due to the resultant gear multiplication.

09-02-2009, 01:32 AM	#55 (permalink)
Christ Moderate your Moderation. Join Date: Nov 2008 Location: Troy, Pa. Posts: 8,919 Pasta - '96 Volkswagen Passat TDi 90 day: 45.22 mpg (US) Thanks: 1,369 Thanked 430 Times in 353 Posts	The question about overspeeding came when I suggested a gear driven application which used a lower power lower weight motor coupled to the driveshaft via gear/chain in reduction. If the max RPM of the motor was 6000 RPM, and it could only propel the vehicle up to 20 MPH at max RPM, anything faster than that (vehicle speed) would overspeed the e-motor due to the resultant gear multiplication. __________________ "¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"