lifted club cars - lifted ezgo
Home FAQDonate Who's Online
Go Back   Buggies Gone Wild Golf Cart Forum > Modified Golf Carts > Extreme DC!
Extreme DC! Extreme Electric Golf Carts!



Post New Thread  Reply
 
Thread Tools Display Modes
Old 03-12-2015, 02:22 PM   #1
meesh169
Not Yet Wild
 
Join Date: Nov 2014
Posts: 10
Default IQ Precedent Controller Bypass

Hi Everyone,
I have been reading on this forum about controller bypass setups to add more voltage directly to the motor for short periods of time to increase RPM’s/speed. I have a 2008 IQ Precedent and I was wounding if this is even possible with my cart. Most of the information that I can find is for 36V Series carts. Are series carts the only ones that this will work on? Will the bypass setup work on IQ motors or will it burn it up? The thread below is the most informative one that I can find with diagrams but I was hoping that someone that has done this setup before could help answer some questions. Thanks

http://www.buggiesgonewild.com/extre...r-boost-3.html
meesh169 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 03-12-2015, 04:59 PM   #2
Oneunder
Getting Wild
Club Car
 
Join Date: Feb 2013
Location: Kansas
Posts: 107
Default Re: IQ Precedent Controller Bypass

Read post 119 of that thread.

with that said, this is very cool! I am willing to bet that it would work if you installed a speed magnet to turn off the regen feature of the motor.

Last edited by Oneunder; 03-12-2015 at 07:09 PM.. Reason: I had more time to think about it.
Oneunder is offline   Reply With Quote
Old 03-12-2015, 07:50 PM   #3
meesh169
Not Yet Wild
 
Join Date: Nov 2014
Posts: 10
Default Re: IQ Precedent Controller Bypass

Thanks for the advise Oneunder. I went back and saw the post that roady89 made about it not working on regen carts but no one in the post elaborated as to why it wouldn't work. So u think if the regen braking is removed then the motor would act more like a series motor and the bypass is possible? Can you or any other members on the forum think of any other problems besides back flow to the controller that could occur on an IQ doing this bypass?
meesh169 is offline   Reply With Quote
Old 03-12-2015, 08:48 PM   #4
rib33024
......................
 
Join Date: Apr 2009
Location: FT Lauderdale FL.
Posts: 16,416
Default Re: IQ Precedent Controller Bypass

Two total different Motors,


Shunt Wound DC Motor




In case of a shunt wound dc motor or more specifically shunt wound self excited dc motor, the field windings are exposed to the entire terminal voltage as they are connected in parallel to the armature winding.










Series Wound DC Motor

In case of a series wound self excited dc motor or simply series wound dc motor, the entire armature current flows through the field winding as its connected in series to the armature winding. The series wound self excited dc motor is diagrammatically represented below for clear understanding.



rib33024 is offline   Reply With Quote
Old 03-12-2015, 09:01 PM   #5
Sergio
Gone Wild
 
Sergio's Avatar
Club Car
 
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
Default Re: IQ Precedent Controller Bypass

The real issue is that the specific type of shunt motor used in the IQ carts is a SEPEX or Separately Excited motor (the coils are not physically connected in parallel as the shunt picture above).

The controller for those motors is considerably more complex and they all have a "Field Weakening Map" that controls the relationship between Field Current vs Armature Current, some controllers do it at different RPMs as well.

Completely by-passing those controllers will most likely fry the motor as You will never be able to maintain the correct current ratio between the motor field and armature coils.
Sergio is offline   Reply With Quote
Old 03-13-2015, 12:38 AM   #6
SC Carts
Gone Wild
 
SC Carts's Avatar
Club Car
 
Join Date: Apr 2012
Location: BC Canada
Posts: 663
Default Re: IQ Precedent Controller Bypass

Quote:
Originally Posted by meesh169 View Post
Hi Everyone,
I have been reading on this forum about controller bypass setups to add more voltage directly to the motor for short periods of time to increase RPM’s/speed. I have a 2008 IQ Precedent and I was wounding if this is even possible with my cart. Most of the information that I can find is for 36V Series carts. Are series carts the only ones that this will work on? Will the bypass setup work on IQ motors or will it burn it up? The thread below is the most informative one that I can find with diagrams but I was hoping that someone that has done this setup before could help answer some questions. Thanks

http://www.buggiesgonewild.com/extre...r-boost-3.html
Are you trying to achieve a "nitrous" type feeling?
SC Carts is offline   Reply With Quote
Old 03-13-2015, 06:19 AM   #7
Revolution
Voltaholic
 
Revolution's Avatar
Mixed Breed
 
Join Date: Dec 2013
Location: Close to Navasota Texas
Posts: 934
Default Re: IQ Precedent Controller Bypass

listen to the guys above. It will destroy your motor. I killed a perfectly good sepex motor just by changing field mapping. I was looking for more speed and changing field maps and burnt it up on the third test run.
Revolution is offline   Reply With Quote
Old 03-13-2015, 08:00 AM   #8
Oneunder
Getting Wild
Club Car
 
Join Date: Feb 2013
Location: Kansas
Posts: 107
Default Re: IQ Precedent Controller Bypass

So disappointing. I was already putting a parts list together and picking out a spot for my "boost" button.

What about if you did the same concept but ran the extra volts through your controller without exceeding its limits? (I have been told that the curtis can handle 72) It could serve as that extra bump of speed or "spare tank" when you needed a little extra power to get home when your pack was low?
Oneunder is offline   Reply With Quote
Old 03-13-2015, 08:08 AM   #9
SC Carts
Gone Wild
 
SC Carts's Avatar
Club Car
 
Join Date: Apr 2012
Location: BC Canada
Posts: 663
Default Re: IQ Precedent Controller Bypass

Quote:
Originally Posted by Oneunder View Post
So disappointing. I was already putting a parts list together and picking out a spot for my "boost" button.

What about if you did the same concept but ran the extra volts through your controller without exceeding its limits? (I have been told that the curtis can handle 72) It could serve as that extra bump of speed or "spare tank" when you needed a little extra power to get home when your pack was low?
Why not install a Curtis controller, and a performance motor and then have a toggle switch that toggles between mode 1 and mode 2 on the controller so you can have two different sets or parameters. In mode 1 it is a nice cruising machine and in mode two it gets the full juice, have it accelerate quicker in mode 2.

Just a thought, we are going to be doing something similar with one of our SVD builds, but we are taking it to another level, we wanted the same "boost" type feeling.
SC Carts is offline   Reply With Quote
Old 03-13-2015, 08:50 AM   #10
meesh169
Not Yet Wild
 
Join Date: Nov 2014
Posts: 10
Default Re: IQ Precedent Controller Bypass

Thanks for all the responses. My cart currently goes 32 MPH with a PQ Executioner, DCX500, 2 AWG wires, HD solenoid and 23" tires. The problem is that if I have 4 People on the cart I am only cruising at about 24-26 MPH. Which is still respectable but not quick enough. The cart is street legal and the area I live in allows them on 35 MPH or less streets, which is pretty much the entire barrier island I live on and I hold up too much traffic during busy weekends if I have 3-4 passengers on the back. GEM cars are becoming very popular where I live in Florida and I have seen them going close to 40 MPH with 4 people.(I assume modified). Since a boost is not possible is swapping the controller to a 72 volt system possible? All the 72 volt controllers I have seen are made for series wound motors. Thanks again.
Attached Images
File Type: jpeg image (1).jpeg (152.6 KB, 0 views)
meesh169 is offline   Reply With Quote
Reply
Go Back   Buggies Gone Wild Golf Cart Forum > Modified Golf Carts > Extreme DC!


Thread Tools
Display Modes


Similar Threads
Thread Forum
What Controller to Buy for an 06 Precedent Electric Club Car
CC Precedent 400 or 500 amp Controller? Lifted Golf Carts
48v controller bypass straight to a 36v motor? Electric EZGO
controller for precedent Electric Club Car
Controller Bypass Golf Cart Racing


All times are GMT -5. The time now is 03:28 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.