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Electric Club Car Electric DS, and Precedent golf cars |
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03-22-2023, 02:43 PM | #1 |
Gone Wild
Join Date: Jul 2019
Posts: 337
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Simple question, hard answer
I have a 2010 precedent with a stock curtis controller. I have 50 volts at the batteries, at full throttle I am only getting 30 volts to the motor..
Hooked up my hand set and under load I am at 46 volts and the cart runs 13MPH I show 100% throttle but only 75% PWM. Should this be 100% as well? The PWM seems to be consistent up to the 75% throttle/PWM mark |
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03-22-2023, 02:49 PM | #2 |
Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,119
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Re: Simple question, hard answer
Sounds like your controller is speed limited to 14mph. That's how most golf carts are programmed.
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03-22-2023, 04:20 PM | #3 |
Bonafide Nincompoop
Join Date: Dec 2015
Location: Charlottesburg Va
Posts: 8,987
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Re: Simple question, hard answer
Voltage at the motor is usually not something you can just measure with a sepex motor. The field current is what ultimately determines speed of the motor on those, and the armature current will be limited as well by the controller.
Kinda seems like it's doing what it's supposed to, but you can check the green cable that comes from the B+ terminal to the A1 stud on the motor and make sure it is clean and free of corrosion. I've seen a few of those melt at the controller because of people driving them with low battery voltage. Any heat damage or discoloration of the cable or the ring terminals will cause power loss. Check both cables from the motor for damage. Also check the controller terminals for any evidence of heat damage or melting of the case around the terminals. |
03-23-2023, 07:54 AM | #4 |
Gone Wild
Join Date: Jul 2019
Posts: 337
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Re: Simple question, hard answer
This is the same cart as the gear noise. So last year I installed a D&D motor, I swear this cart ran 16-18 before it got messed up again. Because of the gear noise I was trying to drive it a bit to see if the would "wear in" but when I went to drive it, it was a pig. The controller is programed to s3 which is 14.8 MPH I am assuming the batteries being a little on the softer side is why I am at 13. Just thinking with the motor and gears it would be faster.. Gonna have to burn this one, its making me angry!
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03-23-2023, 08:07 PM | #5 | |
Gone Wild
Join Date: Apr 2013
Location: Deep Run, NC
Posts: 2,534
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Re: Simple question, hard answer
Quote:
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03-29-2023, 04:03 PM | #6 |
Gone Wild
Join Date: Jul 2019
Posts: 337
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Re: Simple question, hard answer
Ok so I replaced the rear end for my other problem. Without the high speed gears I dropped to 10MPH. Found I could roll the cart with no resistance so changed the speed sensor annnddd..... yep still 10MPH, new sensor no beep or resistance while pushing. Swapped out the controller and ahhhhh 17 MPH. Done sending the turd on.
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