Now we're getting to it. The whole nub of the problem is this infuriating intermittant delay.
I run two 14.5Ah batteries in parallel, both made by Jimmy. My charging diaries tell me one is on 256 charges the other on 167. None of those will have been full cycle charges. They have been running the Ezee system throughout those charges with no problems. They charge to 41.7v.
Most of the time the system does respond instantaneously to pas and/or throttle, on sudden ramps, steep inside corners, pulling away from junctions. But it's at those crucial V bottoms it's letting me down. The inconsistancy is infuriating and it's this I/we are trying to find the cause of.
I'll repeat what I found today, in case it helps.
Scenario is going down hill.
If I don't pedal at all going down hill (just let the bike roll) and don't pedal until speed comes down to 15.5mph, then power pick up is nigh on instantaneous.
If I do pedal (bikes gearing will allow me to pedal up to around 30mph) then the system will not kick in until speed is very low (8mph or less) and when it does the increase in watts displayed in painfully slow. There was no sag showing on battery indicator at this point.
Saneagle, I know you've said you've had trouble with the 12 magnet pas's that I have fitted, do you think it could be something to do with that?
I'm trying to be as concise and accurate with my language and observations as I can. Thanks for all the help and suggestions so far for this apparently irrational problem.
I don't think it's anything to do with the pedal sensor. All it does is pulse. The pulse speed doesn't matter.
The only thing I can think of is something to do with the clutch, but I can't think what. In one case, the the motor is spinning with the clutch disengaged, and the other the motor isn't spinning with the clutch engaged. Maybe the centrifugal force holds the rollers out and prevents them from engaging. I remember other peopl talking about weird effects like that with other controllers and motors. The more I think about it, the more I believe that's what's happening. The rollers in AKM clutches are on quite a large diameter, so would get more centrifugal force than most
If my theory is correct, you'd see something around 30 to 50 watts on the meter when the speed is below 15 mph, you're demanding power, but not getting any. The moment the clutch engages, the motor will go from no load to loaded, so the power should jump to normal levels, depending on what you have the power set to.
The solution would be to stop pedalling for a couple of seconds when the speed gets down to say 17 mph. That would give the motor a chance to slow down to engagement speed before you reach 15 mph. Alternatively, keep pedalling, but feather the brake to use the brake switch to cut the motor. The moment you're down to 15mph, you can either pedal or let go of the brake, and the clutch will engage to give all the power you want.
