lifted club cars - lifted ezgo
Home FAQDonate Who's Online
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Electric EZGO
Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV.



Post New Thread  Reply
 
Thread Tools Display Modes
Old 12-10-2014, 02:57 PM   #11
sunking
Gone Wild
 
Join Date: Oct 2009
Posts: 486
Default Re: Voltage change

Voltage and RPM are proportional to each other. On paper theory going from 36 volts to 48 volts should increase rpm speed 25%. In practice it does not work that way because motors loose torque as RPM goes up.

Current is proportional to current. More current, more torque.

The kicker with DC motors is maximum torque occurs at 0 RPM and linearly drops off as RPM increases. In other words they are inversely proportional with respect to DC motors. AC motors are a different story.
sunking is offline   Reply With Quote
Alt Today
BGW

Golf car forum Sponsored Links

__________________
This advertising will not be shown in this way to registered members.
Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum
   
Old 12-10-2014, 06:01 PM   #12
passthru
Gone Wild
 
passthru's Avatar
Club Car
 
Join Date: Oct 2014
Location: Fort Worth, Tx
Posts: 500
Default Re: Voltage change

Quote:
Originally Posted by cgtech View Post
Ahh, went to the "dark side" huh...
Dang I hope so. BTW, which side is the dark side?
passthru is offline   Reply With Quote
Old 12-11-2014, 09:40 AM   #13
JohnnieB
Techno-Nerd
 
JohnnieB's Avatar
E-Z-GO
 
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
Default Re: Voltage change

Quote:
Originally Posted by sunking View Post
Voltage and RPM are proportional to each other. On paper theory going from 36 volts to 48 volts should increase rpm speed 25%. In practice it does not work that way because motors loose torque as RPM goes up.

Current is proportional to current. More current, more torque.

The kicker with DC motors is maximum torque occurs at 0 RPM and linearly drops off as RPM increases. In other words they are inversely proportional with respect to DC motors. AC motors are a different story.
My calculator says the increase from 36V to 48V is 33%, but I agree the increase in RPM won't be quite that much.

However, the entire Torque/RPM curve moves the the right (Hypotenuse lengthens) and if the mechanical load remains the roughly same, it will be mighty close to it.

For example: I went from 24MPH to 28MPH (16.7% increase) when I went from 36V to 42V (16.7% increase).
JohnnieB is offline   Reply With Quote
Reply
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Electric EZGO


Thread Tools
Display Modes


Similar Threads
Thread Forum
What is the difference between a Voltage Reducer & Voltage Converter Electric Club Car
battery voltage change Electric EZGO
Pack voltage vs. voltage at charing receptacle Electric Club Car
oil change Gas Club Car


All times are GMT -5. The time now is 11:11 AM.


Club Car Electric | EZGO Electric | Lifted Golf Carts | Gas EZGO | Used Golf Carts and Parts

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
This Website and forum is the property of Buggiesgonewild.com. No material may be taken or duplicated in part or full without prior written consent of the owners of buggiesgonewild.com. © 2006-2017 Buggiesgonewild.com. All rights reserved.