lifted club cars - lifted ezgo
Home FAQDonate Who's Online
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Electric Club Car
Electric Club Car Electric DS, and Precedent golf cars



Post New Thread  Reply
Thread Tools Display Modes
Unread 11-28-2014, 04:42 PM   #1
Gone Wild
 
Join Date: Dec 2010
Posts: 458
Default Increasing the speed of a Series Motor

Other than high speed gears or a performance motor the quick way to increase speed is to fit a 36v motor to the 48v cart.(if you can find one). I came across the following on the web quote "To increase speed of the motor decrease the field current by placing a small resistance in parallel to the winding and armature. The decrease in current will result in lowering of magnetic flux and counter EMF, which further hastens the motor speed" Any one tried this or have any ideas??
Golfdog is online now   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
   
Unread 11-28-2014, 05:26 PM   #2
Gone Wild
Yamaha
 
Join Date: May 2012
Location: Rio Verde, Az
Posts: 2,679
Default Re: Increasing the speed of a Series Motor

That will also decrease torque proportionally.
Volt_Ampere is offline   Reply With Quote
Unread 11-28-2014, 06:37 PM   #3
Gone Wild
 
Sergio's Avatar
Club Car
 
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 4,573
Default Re: Increasing the speed of a Series Motor

What you described is called "Field Weakening", the trick is not to allow it if the motor is under severe torque condition as it would not be able to develop much torque and the current thru the motor would be very large.

The worst time would be trying to start the cart and the Weakening Solenoid being engaged.

You can search the site for ideas, but I thought of the following (picture attached).

When You push the button, the charger relay engages (at full 48v from pedal switch), the relay then "latches on" using a diode from the "Cold Side" of the Relay Normally Open contact.

The cool thing about these relays is that once engaged, they will hold the contacts all the way to under 10v coil voltage. They also use 20ma at +48v coil voltage, so it is ideal for using LEDs.

You can have a few Green Leds (3v drop each) in series that will only be ON if the Overdrive solenoid is engaged.

If You remove the foot from the pedal, the relay and By-Pass Solenoid go off so You don't have to worry about starting the cart with the By-Pass relay ON.

There is also nothing that would prevent the motor to spin itself to self-destruction if You keep accelerating with Field Weakening ON.
Attached Images
File Type: jpg Field_weaking.jpg (857.4 KB, 0 views)
Sergio is online now   Reply With Quote
Unread 11-29-2014, 04:37 PM   #4
Gone Wild
 
Join Date: Dec 2010
Posts: 458
Default Re: Increasing the speed of a Series Motor

Tks for info Sergio, I suppose if you want some speed on the flat its ok but on hills when you need torque its a no no. Sounds like a solution for Florida
Golfdog is online now   Reply With Quote
Unread 11-29-2014, 06:18 PM   #5
Gone Wild
 
Sergio's Avatar
Club Car
 
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 4,573
Default Re: Increasing the speed of a Series Motor

Absolutely, but I would be curios if anyone in a flat area has tried it, how much speed increase would you get...
Sergio is online now   Reply With Quote
Unread 11-29-2014, 06:52 PM   #6
ΜΟΛΩΝ ΛΑΒΕ
 
93yellowclubcar's Avatar
Club Car
 
Join Date: Nov 2012
Location: West Virginia
Posts: 4,094
Default Re: Increasing the speed of a Series Motor

Isnt one old series motor trick "field shorting?" Once the car is up to full speed, the field terminals are shorted together and speed was said to roughly double, though torque was lost just the same. IIRC there used to be eBay kits and such for it, but it was kind of looked at as hackery and a bad idea. Maybe someone who has tried it can chime in??
93yellowclubcar is offline   Reply With Quote
Unread 11-29-2014, 07:17 PM   #7
Gone Wild
 
Sergio's Avatar
Club Car
 
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 4,573
Default Re: Increasing the speed of a Series Motor

I agree is definitely a bad idea if You use just a toggle switch, too easy to forget it on...
Sergio is online now   Reply With Quote
Unread 11-29-2014, 07:36 PM   #8
ΜΟΛΩΝ ΛΑΒΕ
 
93yellowclubcar's Avatar
Club Car
 
Join Date: Nov 2012
Location: West Virginia
Posts: 4,094
Default Re: Increasing the speed of a Series Motor

I agree, your idea would be much safer, too bad it's too hilly around here to try it.
93yellowclubcar is offline   Reply With Quote
Unread 08-10-2015, 05:35 PM   #9
Gone Wild
 
timmyjane's Avatar
E-Z-GO
 
Join Date: Jul 2015
Location: Simpsonville, SC
Posts: 245
Default Re: Increasing the speed of a Series Motor

Is this using the solenoid that is already installed in the cart or does it require a new separate solenoid?
timmyjane is offline   Reply With Quote
Unread 08-10-2015, 05:51 PM   #10
ΜΟΛΩΝ ΛΑΒΕ
 
93yellowclubcar's Avatar
Club Car
 
Join Date: Nov 2012
Location: West Virginia
Posts: 4,094
Default Re: Increasing the speed of a Series Motor

Quote:
Originally Posted by timmyjane View Post
Is this using the solenoid that is already installed in the cart or does it require a new separate solenoid?
Requires a separate solenoid. It does work, but speeds won't double. I tested it on an old cart a while back and gained a few MPH, but the gain isn't worth the time setting up the system and the damage you could easily do to your motor.
93yellowclubcar is offline   Reply With Quote
Reply

Tags
2000 ds
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Electric Club Car


Thread Tools
Display Modes


Similar Threads
Thread Forum
increasing speed Gas Club Car
Increasing speed in 1992 Gas EZGO
Increasing the Speed of a 4 stroke G5? Gas Yamaha
Increasing Speed? Electric Club Car
Increasing Speed on an 08 EZ-G0 w/ Series Electric EZGO


All times are GMT -5. The time now is 08:11 AM.


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

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.