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Unread 06-11-2013, 08:31 AM   #1
Getting Wild
 
Join Date: May 2013
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Default Looking for tech info on V-Glide

Maybe there is a tech that understands how V-Glides interact with the rest of the system. I have an all stock (except for the 22" tires and #4 wires) 2000 regen II CC an I am trying to get a better understanding about how the V Glide works. I worked on cars for 30yrs so I understand how TPS sensors work. I don't really think there is anything wrong with mine since it reads right for the most part with an ohm meter (0-5.6K) but what I don't understand is why I reach top speed at about half pedal travel which is at about 3k ohms. Is something limiting the rpm of the motor or does the motor not need full voltage to top out. Now I haven't tried to measure the voltage output to the motor from the controller ?? Could there be and issue with the controller??? Or is everything relative to amperage and the demand just is not there??
Thanks for any knowledge you might be will to share.
Al
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Unread 06-11-2013, 09:40 AM   #2
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Default Re: Looking for tech info on V-Glide

. . . don't know if this will help or confuse more . . .


Test Procedure - Multi-step Potentiometer (from the 1998-99 Service Manual)

1. Disconnect the battery cables (negative cable first) and then disconnect the six-pin connector at multistep potentiometer. Remove switch cover by pressing down on locking tabs.

2. With multimeter set for 20K ohms, connect black (-) lead of multimeter to purple wire terminal end (located in six-pin connector on potentiometer). Connect red (+) probe to yellow wire terminal end.

3. Depress the accelerator pedal until wiper switch movable contact is on third stationary contact. Multimeter should register approximately 565 ohms.

4. Measure resistance while depressing the accelerator pedal. The measured resistance should increase incrementally in six steps:

1st Step: 910 ohms (approx.)
2nd Step: 1660 ohms (approx.)
3rd Step: 2570 ohms (approx.)
4th Step: 3570 ohms (approx.)
5th Step: 4570 ohms (approx.)
6th Step: 5570 ohms (approx.)

5. If the resistance steps were not correct and the accelerator pedal is properly adjusted, then replace multi-step potentiometer.
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Unread 06-11-2013, 10:07 AM   #3
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Default Re: Looking for tech info on V-Glide

Thanks Steve!! But mine is a 2000 and must be a little different as it has a 3 wire connector and two single connectors. Mine ranges from 0-5.6K so I really think it is ok. I am just trying to get a better understanding of how they work. From what I gather the OBC works with the charge to regulate charging and has nothing to do with the motor and controller. I can only assume the V glide acts sort of like a throttle position sensor and the controller uses that input to regulates the voltage (RPMs) and the available amperage (torque) that the motor can draw. The more I understand How something works the easier it is to work on. I have a new PQ motor ordered and I hope I can avoid frying anything by learning a little, That's all. Any comments are welcome.
Thanks Again
Al
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Unread 06-11-2013, 11:19 AM   #4
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Default Re: Looking for tech info on V-Glide

Quote:
Originally Posted by anix View Post
Thanks Steve!! But mine is a 2000 and must be a little different as it has a 3 wire connector and two single connectors. Mine ranges from 0-5.6K so I really think it is ok. I am just trying to get a better understanding of how they work. From what I gather the OBC works with the charge to regulate charging and has nothing to do with the motor and controller. I can only assume the V glide acts sort of like a throttle position sensor and the controller uses that input to regulates the voltage (RPMs) and the available amperage (torque) that the motor can draw. The more I understand How something works the easier it is to work on. I have a new PQ motor ordered and I hope I can avoid frying anything by learning a little, That's all. Any comments are welcome.
Thanks Again
Al
Yours is as Steve explained. It is a multi step potentiometer, when at rest the resistance between the wiper arm and the top segment of the pot to which the positive 48v feed from the controller is attached is the sum of all the resistors joining the segments. As the wiper moves up when the pedal is pressed the resistance decreases and voltage back to the controller thru the wiper increases. This increase in voltage is what the controller uses to vary the input to the motor.
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Unread 06-11-2013, 11:32 AM   #5
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Default Re: Looking for tech info on V-Glide

The V glide signal is ohms Ω. 5k-0 or 0-5k depending upon the year. One thing to look for is over range signal. Over 6k can be a problem, 4500 is usually as good as 5k. You can test the controller output between B- and M- and see what is happening as far as the peddle input/ controller output is concerned. If you want a better system change the vglide out for a potentiometer. You will get a much smoother more even range of signal and a better controlled output.

Of course most people say, who cares? If it works it works.
It's just a golf cart and yes all GC techs understand how the V glide interacts with the rest of the system.
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Unread 06-11-2013, 11:51 AM   #6
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Default Re: Looking for tech info on V-Glide

Yes I agree that my pot works as Steve described and I may be wrong but I think I remember mine working opposite. I am pretty sure it read 0 at rest and 5.6k with the pedal to the floor. And I have a very good understanding how a potentiometers work, the series resistor and wire wound types. But like I said I am just trying to gain some knowledge about how the controller interprets the signal to manage voltage and current. Thanks for your input
Al
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Unread 06-11-2013, 11:56 AM   #7
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Default Re: Looking for tech info on V-Glide

Thanks Scotty. It is nice to know that the controller output can be checked. I know you sell state of charge meters and I may get with you on one. But does anyone monitor current draw under high load conditions?
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Unread 06-11-2013, 04:14 PM   #8
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Default Re: Looking for tech info on V-Glide

Quote:
Originally Posted by anix View Post
Yes I agree that my pot works as Steve described and I may be wrong but I think I remember mine working opposite. I am pretty sure it read 0 at rest and 5.6k with the pedal to the floor. And I have a very good understanding how a potentiometers work, the series resistor and wire wound types. But like I said I am just trying to gain some knowledge about how the controller interprets the signal to manage voltage and current. Thanks for your input
Al
The reading you get of 0 - 5k is because the test was done relative to negative (purple wire) whereas the controller is rated as 5k - 0 relative to positive.
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Unread 01-20-2014, 02:28 PM   #9
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Default Re: Looking for tech info on V-Glide

Good Info
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Unread 01-20-2014, 03:47 PM   #10
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Default Re: Looking for tech info on V-Glide

Now I'm really confused. Did they really use a V-Glide on the 2000 regen II CC ????? Coulda sworn it would be either a Potentiometer (like mine) or maybe even a "more modern" MCOR?
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