Stalling? SOLUTION/ANSWER: COGGING

justatree

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  1. Fury
So today was first run on the fury, popped a shock cap... great... but 2-3 times my car stalled with a clicking sound, but came back to life, I don't know if this is a serious issue. but I was playing with it for about 2 hours and I don't think it was an issue. I ran it full speed up and down the street. It was more like at the start of the first run and in the middle somewhere, it would click and jolt/ not really move
 

springboardz

Whoops - that'll leave a dent...
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  1. Talion
Click, then a beep right? Like the ESC was resetting itself? If so, that's exactly what happened to me at first with my Talion BLX. Then it wouldn't start unless I jolted it. Then... the ESC completely failed. :(

Full story here, if you haven't already read it.
 

RCCR

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I think this is an ESC fail, there were also some type of this issue in Germany, in most of the cases ESC fail....
 

justatree

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no beep or reset, haven't heard of this problem yet
it sounded like it was trying to move, I clicked gas sounded like "cluk" multiple times, lol a car was waiting for it.... so I pulled it in on to the curb, the it ran fine, no beeps just clicking

I'm pretty sure it didn't restart, the first time it happened maybe like 5 seconds, the second time it just was clicking for 2 seconds and then ran fine it was when I can to a full stop
(the second time was right near me, close to my feet)
 
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Drewski

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That sounds you are hearing is called "cogging" it was explained to me that it's like a car trying to run but doesn't know what cylinder to fire. Your motor is sensorless, a sensors motor won't do that BC it will know which side of the motor to fire to get it moving.. So its basically the timing of the motor.. I noticed a dead battery will do it more often that a charged one..
 

justatree

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So I don't need to be worried about this right? I have heard of cogging, but never really knew what it meant, thank you for explaining it to me:)

@Drewski Since you have the BLX model as well has this happened to you by any chance?
 
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Drewski

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@justatree.. yes I have had it happen to me and I had it start to happen every time I pull the throttle fully from a dead stop. Then the esc would go into low voltage mode and my battery was charged. If I would ignore the problem and just turn the truck off then back on the problem only got worse. So I contacted ARRMA and sent my esc and motor in, they sent me bran new ones and haven't had a problem again. I picked up a castle creations set up to keep me going while my parts were in lingo..
 

justatree

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I run mine on nimh, but I will look at this more, and if this occurs more often I will call arrma. Is cogging a big deal though? Is it like a defect?
 

Drewski

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I noticed when it did it often, when I went to unplug the battery the wires were warm. Whitch made me assume something was drawing way to many amps and wasn't going anywhere..
 
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