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Old 03-03-2022, 11:20 PM   #71
MoJeffro
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Default Re: Project Precedent

What's the latest on your build? How fast are you going? How long can you go on a charge?
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Old 03-04-2022, 09:25 AM   #72
UncleJerm76
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Default Re: Project Precedent

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Originally Posted by MoJeffro View Post
What's the latest on your build? How fast are you going? How long can you go on a charge?

BUILD
The build in its current state is done. Everything has been buttoned up and itís running trouble free everyday - literally not a single issue or gripe. Iíll continue the build with either a Silver Wolf or Navitas AC conversion - Havenít decided which yet. But that will require an enormous amount of work and a complete tear down/rebuild with all new custom length heavy gauge wires, new thicker busbars, custom mounting of the controller, and I might have to buy the newer tub conversion kit to get it all to fit. So it wonít be any time soon unless my stock motor or controller lets go. I got two more carts Iím flipping that I need to get sold and out of my way first. I think this setup would work perfectly for 95% of the golf cart community.

TOP SPEED
I just finished rebuilding the motor with new bearing and brushes (they werenít actually bad, just sticking and the spring wasnít able to keep them against the armature). After replacement I gained a tiny bit more top speed. 20mph is now my current top speed on flat ground, thatís with a high-speed magnet. The 18Ē golf tires, motor, controller are all still stock. I really need a windshield now, bugs hitting your face at 20 is no fun.

DISTANCE
Because my rides are split up, I have no accurate way to measure how far I can go - but it is ridiculously far. Iíve yet to run it down to even 75%! The only time Iíve even charged it was when Iíve needed to disconnect the pack for some reason. That resets my shunt meter so I need to fully charge again so it shows accurate battery percentage again. GPS apps are fine for single long drives, but I wish I had a odometer permanently mounted, it would be so much easier to keep track over a period of weeks/months how far Iím actually going between charges. (Does anyone have experience with one they can recommend?) Iím mostly using it to just run down to our gate to grab the mail or packages, which is exactly 1/4-mile away -or Iím taking the kiddos and their friends for rides around our small property. With daily use doing these things I can easily go months between charges. We visit family once in a while up north and there are lots of dirt roads and trails up there that I can ride all day long. Iíll be able to get an accurate distance at that time.

I will say itís SOOO nice not having to worry about plugging it in every time when Iím done with it for the day. And of course all the obvious stuff; no smelly fumes, no acid leaks on the garage floor, and no maintenance to speak of. Everything under the seat is staying very clean now, I absolutely still love it - I would do this again in a heartbeat.


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Old 03-04-2022, 09:58 AM   #73
Volt_Ampere
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Default Re: Project Precedent

I built a speedometer / odometer for my carts using Arduino. I go 20 miles between charges (Leaf modules). It runs off of the motor's speed encoder. I wouldn't be without it now that I have had it for a few years.
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Old 03-07-2022, 11:27 AM   #74
UncleJerm76
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Default Re: Project Precedent

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Originally Posted by Volt_Ampere View Post
I built a speedometer / odometer for my carts using Arduino. I go 20 miles between charges (Leaf modules). It runs off of the motor's speed encoder. I wouldn't be without it now that I have had it for a few years.

Iíve built lots of PCs & dabbled in code writing, I am looking into Arduino now, thank you for the suggestion. Do you have any more information on your Arduino project?


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Old 03-07-2022, 11:33 AM   #75
Volt_Ampere
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Default Re: Project Precedent

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Originally Posted by UncleJerm76 View Post
Iíve built lots of PCs & dabbled in code writing, I am looking into Arduino now, thank you for the suggestion. Do you have any more information on your Arduino project?


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My Arduino project includes a complete BMS as well as the display with Speedometer/Odometer. It would be hard to separate them. If you get into Arduino and want to build a speedometer/odometer, I can help you with some tips. Counting the speed sensor pulses is done in an interrupt routine that does nothing but count the pulses. Odometer data is stored in Flash memory - this is by far the hardest part of the project since it has to preserve everything over a power cycle.
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Old 03-08-2022, 08:39 PM   #76
UncleJerm76
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Default Re: Project Precedent

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Originally Posted by Volt_Ampere View Post
My Arduino project includes a complete BMS as well as the display with Speedometer/Odometer. It would be hard to separate them. If you get into Arduino and want to build a speedometer/odometer, I can help you with some tips. Counting the speed sensor pulses is done in an interrupt routine that does nothing but count the pulses. Odometer data is stored in Flash memory - this is by far the hardest part of the project since it has to preserve everything over a power cycle.

Wow, wish I had the time


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