Go Back   EcoModder Forum > EcoModding > Fossil Fuel Free
Register Now
 Register Now

Reply  Post New Thread
Submit Tools LinkBack Thread Tools
Old 04-14-2009, 03:37 PM   #1 (permalink)
EcoModding Lurker
Join Date: Apr 2009
Location: sacramento, ca
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
EV Calulator?

I'm new to the forum and have read nearly every thing I can in two weeks
about EV and the Metro conversions. I'm extremely jazzed. I bought a forklift last Saturday.

I have some Motor questions and their must be some calculation spread sheets out there some where.

What I'm looking for is a EV motor calculator;

I have looked at the EV calculator at EV Calculator and its great but it doesn't have an area for curb weight and an unbranded motor.
  1. Given the curb weight of a vehicle how many HP would be needed to move it to 45 MPH? in say 20 seconds?
  2. Given the HP needed what is the optimum voltage?
  3. Given the voltage and HP how many amps are required for 20 mile range?

For example I have a motor the name plate says 9.2 Kw 45 VDC. On a web conversion site it says the motor is 12.3 HP, but is that at 110VAC?

The forklift came with a GE EV-1 controller 36-84 V rated that some one is running at 96 VDC. The controller is capable of 600 Amps.

I guess what Im really asking is will the motors I have work well at 96 VDC with the EV-1
And at what curb weights so I have a choice of donor vehicles like Nissan Sentra, BMW or Metro.

I would really Like a Trooper or 86-7 Jeep Cherokee.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

Old 04-14-2009, 03:59 PM   #2 (permalink)
captainslug's Avatar
Join Date: Sep 2008
Location: Sterling, VA
Posts: 383

BORK! - '89 Volvo 240 DL Wagon
90 day: 21.27 mpg (US)
Thanks: 2
Thanked 24 Times in 13 Posts
Originally Posted by lurch View Post
For example I have a motor the name plate says 9.2 Kw 45 VDC. On a web conversion site it says the motor is 12.3 HP, but is that at 110VAC?
No, because it's a motor for VDC, not VAC.
  Reply With Quote
Old 04-14-2009, 04:42 PM   #3 (permalink)
Master EcoModder
Join Date: Jun 2008
Location: London, Ontario
Posts: 1,096

2k2Prot5 - '02 Mazda Protege5
90 day: 33.82 mpg (US)
Thanks: 0
Thanked 17 Times in 14 Posts
just so you know... HP is to kW like Mile is to Kilometer. You converted 9.2kW (metric rating) into 12.3HP (imperial rating). They are both a measure of Power, aka rate of energy usage.

I also want some surefire way to calculate all that crap. Never sure where to start.

  Reply With Quote
Reply  Post New Thread

Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
start a "Fire" fly EV project Trevs Introductions 17 06-25-2016 12:14 AM
Electric car conversion: Project ForkenSwift MetroMPG Fossil Fuel Free 1041 07-28-2014 09:19 AM
EV generator trailer bennelson Fossil Fuel Free 18 11-22-2009 04:38 AM
Chrysler's New EV Unveiled On CNBC This Morning! rgathright Alternative Transportation 5 02-09-2009 06:54 PM
Apparent yearly EV meet @ DVC in Concord CA Red General Efficiency Discussion 1 04-28-2008 08:50 AM

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2023, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com