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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV.



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Old 06-03-2020, 08:58 AM   #11
BobBoyce
Gone Insane
E-Z-GO
 
Join Date: Oct 2015
Location: TN/NC/GA Tri-state area
Posts: 3,952
Default Re: RXV Controller issues

Quote:
Originally Posted by molfpedal View Post
I noticed that the braking with the Navitas is much stronger than the Danaher and seemed to kick in quicker also.
So, is there timing involved in the program in relation to braking in the Curtis controller?
The Danaher is a "semi-dumb" controller in that regard, with a minimum of programming for adjustability. The modern Curtis controllers are based upon a "Fly By Wire" controller system that I initially developed for the Stealth Aircraft Program. I modified that design into a simpler "Drive By Wire" controller for electric and fueled vehicles. It was patented, and is now in use globally. It is totally configurable for its end use via software. Despite the amount of adjustability that Navitas has given to the end user, not everything is configured to be adjustable by the end user. It is not a licensed product, therefore I had no input in its development. With the Curtis controlled RXV, nearly every aspect of driver operation is tunable to the drivers expectation of drive feel. With the latest E-Z-GO VCL (Vehicle Control Language) versions, Curtis has reduced this adjustability, following the Club Car example. This is beginning to impact the ability to adjust driver feel. I believe they are making a big mistake in doing this, as it is reducing their attractiveness to personal golf cart/LSV buyers.
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Old 06-03-2020, 12:30 PM   #12
johnabell67
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Join Date: Aug 2019
Posts: 62
Default Re: RXV Controller issues

have no issues with my leaf pack and factory tuned bob controller **** scoots
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Old 06-03-2020, 01:40 PM   #13
molfpedal
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Join Date: Jan 2020
Location: Indiana
Posts: 139
Default Re: RXV Controller issues

I’m not yet sure that was the issue. It may have been a bad circuit anyway. When I get the new one in I will be testing thoroughly and taking notes. If it is the Regen causing the problem I will try to figure a solution and work with the Navitas people to do so.
I will be keeping you informed.


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Old 06-21-2020, 01:51 PM   #14
molfpedal
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Join Date: Jan 2020
Location: Indiana
Posts: 139
Default Re: RXV Controller issues

I have installed the replacement controller in my cart and made these adjustments:

1) I reduced the maximum charge voltage from 57.6V to 56.8V.

2) Raised HV shutdown from 4.15v To 4.17v.

3) Setting Regen to Navitas recommended setting.

4) Limiting maximum speed to 27mph.


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