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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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04-23-2020, 09:21 AM | #1 |
Not Yet Wild
Join Date: Jul 2019
Posts: 30
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Looking for more better breaking power: How does regen braking actually work?
Does regenerative braking, from an upgraded controller, work together with the drum brakes to slow a cart faster or does the regen become ineffective when actual physical brakes are applied?
I've got a 2015 TXT 48v that is stock motor and controller but runs 21mpg. While manageable, I'm not thrilled with the stopping distance and would like to find a way to have it be better. My options, as best I can find: - Replace the rear drum brakes - Add front wheel disc brakes ($350 - $400) - Get a new controller and dial up regenerative braking (~$600) (this is obviously the most expensive but if regenerative braking works it's almost like a 2-1 solution for me as I get a new controller as well). |
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04-23-2020, 01:07 PM | #2 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Looking for more better breaking power: How does regen braking actually work?
Sounds like your 1206HB controller is in the freedom mode, so the regen braking isn't turned on. (See page E-1 in attached service manual)
Only two of the five performance modes available have regen braking, those being Golf Mild Hills and Golf Steep Hills and the top speed with stock height (18" tall) tires is 13.8MPH and 12.8MPH respectfully. Sounds like you are running 20" tall tires on your cart since the stock TXT48 controller limits the motor to about 4400RPM and that translates to about 21MPH with 20" tires. Drop an Alltrax XCT48400-TXT48 Or larger) user programmable controller in it and you can up the speed to about 26.8MPH (Stock TXT48 motor will spin up to about 5600RPM without RPM limiting and power from a 48V battery pack) as well as having regen braking that can be turned up to very strong braking when you lift your foot. https://www.cartsunlimited.net/alltrax-xct-sepex--.html The RPM limit can be turned down to whatever you want the max speed to be. ----------- Can you lock up the rear tire with the drum brakes? If not, the brakes may need adjusting. Section K in attached manual. Basically, find a safe area, load both sides of cart equally (Driver and passenger seats with about the same weight in them.), accelerate to near max speed and stop aggressively without applying parking brake and release pedal just before cart stops. Repeat process until tires will lock up. |
04-23-2020, 02:29 PM | #3 |
Not Yet Wild
Join Date: Jul 2019
Posts: 30
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Re: Looking for more better breaking power: How does regen braking actually work?
Thanks, this is the info I was looking for.
I definitely can't lock up the rear tires, so I'll be adjusting the brakes this weekend and look to add a controller in the next month or so. Thanks again. |
04-23-2020, 04:17 PM | #4 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Looking for more better breaking power: How does regen braking actually work?
If you are running taller than stock tires, the rear wheels might not lock up, but the mechanical brakes ought to produce from about 0.27g up to about about 0.50g of deceleration according to the ANSI Z130.1 Standard for golf carts.
From 20MPH, the stopping distance ought to be 50' or less, but not sure if that includes reaction time. |
04-24-2020, 01:38 AM | #5 |
Gone Insane
Join Date: Oct 2015
Location: TN/NC/GA Tri-state area
Posts: 3,952
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Re: Looking for more better breaking power: How does regen braking actually work?
Regen can be turned on in the stock controller. if it is the 1206HB-5201 type
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04-24-2020, 05:35 AM | #6 |
Gone Wild
Join Date: Feb 2016
Location: Upstate Western New York
Posts: 464
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Re: Looking for more better breaking power: How does regen braking actually work?
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04-24-2020, 06:21 AM | #7 |
Gone Wild
Join Date: Oct 2012
Location: Southwestern Pa.
Posts: 6,214
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Re: Looking for more better breaking power: How does regen braking actually work?
My 2000 TXT does not have regen. I do have front Jakes disc brakes.
Maybe not the place to ask it....but I will anyway.....Can I "turn on" regen braking? Or is that a motor specific issue along with a controller setting. Or is it just a controller setting? |
04-24-2020, 07:21 AM | #8 |
Gone Wild
Join Date: Dec 2009
Location: Aiken, SC
Posts: 13,131
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Re: Looking for more better breaking power: How does regen braking actually work?
Dave regen is pretty much a sepex thing.
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04-24-2020, 04:04 PM | #9 |
Gone Insane
Join Date: Oct 2015
Location: TN/NC/GA Tri-state area
Posts: 3,952
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Re: Looking for more better breaking power: How does regen braking actually work?
2010 or newer TXT48 with the Curtis 1206HB-5201 or newer controller, it's an option that can be turned on and then adjusted for how strong it is wanted to be.
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04-25-2020, 08:22 PM | #10 |
Not Yet Wild
Join Date: Jul 2019
Posts: 30
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Re: Looking for more better breaking power: How does regen braking actually work?
What do I need to turn on and adjust the regen ability on my 2015 TXT?
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