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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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01-09-2015, 10:45 AM | #1 |
Getting Wild
Join Date: Apr 2009
Posts: 137
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RXV - No Low End Power
I just bought three 2010 RXV's. For me, my dad and my brother. We previously had 2004 PDS. When I purchased I had the dealer set the acceleration on the medium setting. I have noticed when climbing a hill or getting into soft dirt there is no low end power. Like from start up to 2 mph. My old carts would spin the wheels. These new carts will not. They just stop. Pulling them into my shed (shipping container) if I put the front wheels against the 6" high ledge and hit the accelerator the cart just sits there. It won't go up. My old cart would spin and go up the ledge.
Is this the accelerator setting needing to go up to high? Or is there a different setting to correct this? Thanks guys. |
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01-09-2015, 11:54 AM | #2 |
Over This Interview Is...
Join Date: Jun 2012
Location: AZ
Posts: 17,449
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Re: RXV - No Low End Power
The rxv is programmed to stop if the motor is in a "stall" condition (like when you put it against a "wall" and press the gas). You should not have been stalling the motor like that anyway, on your new or old cart. I would suggest putting some dirt or something to make a transition into the storage container.
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01-09-2015, 12:22 PM | #3 |
Getting Wild
Join Date: Apr 2009
Posts: 137
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Re: RXV - No Low End Power
Thank you for the reply.
I was just using that as an example. I put my front wheels a few inches away. My old carts go right up when I hit the pedal. The new RXV just bumps it and wont go up. Just an example. Yes I can get my tractor and put a pile of dirt there for a ramp. No issue. Also climbing short hills on my property...... Once I get close to the top and the cart slows down it looses power. It just stops. My old carts would slow on the same short hills and then torque on up. We have a large flood channel/wash with sand in it. The old carts would torque right through it. The new RXV goes right through it too no problems until you slow down. Then it looses power at about 2 to 4 mph and finally just stops. They just don't seem to have no bottom end power. It is all 3 of them so I know there is nothing wrong. I thought maybe it was a setting that my dealer could fix in the controller. Maybe not. Maybe they are just made that way. |
01-09-2015, 01:13 PM | #4 |
Gone Wild
Join Date: Aug 2014
Location: Duncan Corners
Posts: 905
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Torque is not adjustable on RXV's
You seem to be trying to go slow in high motor load conditions. The ac motor in RXV's have more available torque if they are "spun up" a bit. What size tires are you running? Have the gears been changed to high speed gears? Are the battery's in good shape? How steep are the hills? We have some good ones here And RXV 's climb them very well Much better than any cd cart I have seen. |
01-09-2015, 01:22 PM | #5 |
Gone Wild
Join Date: Aug 2014
Location: Duncan Corners
Posts: 905
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More info--
AC motors have lower "stall/start" Torque As motor rpm increases, torque increases then levels off. The torque "curve" is relatively flat To motor designed rpm limit. DC motors have their greatest torque at "0" rpm and torque falls Off rapidly as rpm increases. |
01-09-2015, 01:25 PM | #6 |
Gone Wild
Join Date: Aug 2014
Location: Duncan Corners
Posts: 905
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Above is very general info and is accurate for this discussion on golf carts.
I know it is not detailed and does not take all factors into consideration. |
01-09-2015, 01:45 PM | #7 |
Getting Wild
Join Date: Apr 2009
Posts: 137
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Re: RXV - No Low End Power
Great info...... I have a 2004 EzGo PDS 6 seat stretched cart that I upgraded to 48 volts and an AC System a few years ago. It will go right up the same hills. I can actually chirp the tires when I hit the pedal. It has tons of bottem end torque.
My new RXV's are all stock. The have new (12/2014) Trojan batteries just installed. The hills are short steep hills. It climbs the long hills no problem. With me in the cart by myself it climbs the hills but struggles at the top. With a passenger it stops at the top of the hill. So it sounds like changing to High on the acceleration setting wont help? |
01-09-2015, 05:10 PM | #8 |
Gone Wild
Join Date: Aug 2014
Location: Duncan Corners
Posts: 905
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Re: RXV - No Low End Power
Changing to high acceleration will give the illusion of higher torque...
But in reality, torque is the same. A DC cart will slow to a crawl and keep moving while a rxv must maintain motor rpm to keep going. As cgtech stated - rxv controller will stop cart if it detects a motor stall condition. This is to protect motor and controller. IMHO: the lower acceleration settings are more pleasant to drive or ride as passenger. Are you letting off on the throttle at the top of the hills? or Is hill steep enough to slow RXV down? |
01-09-2015, 05:13 PM | #9 |
Getting Wild
Join Date: Apr 2009
Posts: 137
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Re: RXV - No Low End Power
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01-09-2015, 05:23 PM | #10 |
Gone Wild
Join Date: Aug 2014
Location: Duncan Corners
Posts: 905
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Re: RXV - No Low End Power
On sand, we usually brake traction before loosing speed.
Curious as to length/hight of hill. we have some hills here i would like to do comparison test on. This one has me interested. From this angle, looks like a running start should be all that is needed. |
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