Motor Selection Clarification using OpenRevolt needed - DIY Electric Car Forums
Go Back  

DIY Electric Car Forums > EV Conversions and Builds > Electric Motors

Register Blogs FAQ Members List Social Groups Calendar Search Today's Posts Mark Forums Read

Thread Tools Display Modes
Old 04-21-2012, 03:31 AM
rtcaldwell rtcaldwell is offline
Junior Member
Join Date: Apr 2012
Location: Portland, Oregon USA
Posts: 13
rtcaldwell is on a distinguished road
Default Motor Selection Clarification using OpenRevolt needed

I have read through the Wiki a few times and have also made my way about 1/2 way through the Sticky thread above in regard to selecting a forklift motor, but to be honest, I don't know what I'm looking for.

I have an 62 ford sedan I will be converting, most likely using Lithium ion batteries to power it based off of everyones recommendation, but this is where I get lost on how the motor and the batteries interact to create power/movement.

Since I plan on using an OpenRevolt 144v / 500amp controller, what motors could I use with this which would allow me to go highway speeds, but not break the bank? Sure I'd love to be able to break the speed limit of 80mph, but would never really cruise at that level.

How well would a Warp9 move a 3500 lb un-aerodynamic car or should I be looking at something larger? If I go forklift, what exactly to look for there is confusing me, because it seems very different than a commercially available EV motor.

I'm having difficulty formulating my question, because I'm still trying to absorb everything but am serious about my build which will probably start sometime July.

Thoughts and perspective would be much appreciated.
Reply With Quote
Old 04-21-2012, 04:45 PM
drgrieve drgrieve is offline
Senior Member
Join Date: Apr 2011
Location: Sydney, Australia
Posts: 286
drgrieve is on a distinguished road
Default Re: Motor Selection Clarification using OpenRevolt needed

To size the motor you need to work out what continous power you need to drive at cruising speed. Then select a motor which has a rated continous power above this calculation.

So you need to determine your aerodynamic (cd and frontal area) drag and Rolling Resistance (this should be a minor component) and choose a cruising speed.

There are spreadsheets available on this site to work out the continous power then needed.

If you live in a hilly area then you should work out the incline, speed of ascent required, and max laden weight and see if this affects your continous power rating.

Folks (not me!) here could help selecting a forklift motor candidate once you know your requirements.

Or get a warp 11.
Reply With Quote

Share or Bookmark this

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Support DIY Electric Car

All times are GMT -6. The time now is 07:55 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Ad Management by RedTyger