latecurtis
100 MW
My first step would be hook up the lowest voltage battery I had to the motor. A shorted motor could take out controllers pretty quick.
If there were a short in the motor why would it only short under load ?
Also there is a fuse before the controller. A short should blow the fuse before damaging the controller correct ? Like I said earlier it is totally ridiculous.
The only fact that I have here is it only happens when under load. It still does NOT explain why there is no burnt smell or scorch marks on the controllers.
The original currie 24V controller was put under much heavier load and the motor went before the controller going up hills. Then the 36V controller I got afterwards ran until it caught on fire. It was abused over and over.
When breaking in SLA batteries the front tire was put against a wall and throttle engaged with the currie until the 10 AH SLAs were 100% discharged according to the Currie manual for breaking in the SLAs and these two controllers cant even operate on the flat to accelerate the bike with me sitting on it. I did not gain 300 or 400 pounds. I am still around 240 lbs. There really is no reasonable explanation for two burnt controllers.
Anyway thanks DA I will try to make the four wire throttle work on the 36V controller however I will not be able to run the LiPo packs as they are 22V. With no controller for 22V now the gearing will be much worse.
Gearing at 24V and 533W and 1834 rpm = 21.5 mph which is not that bad.
gearing at 36V and 800W and 2750 rpm = 32 mph which is not that good.
I will try using the four wire throttle but will need to order the 60 tooth wheel sprocket now for sure if I want to go up even a small hill. It will bring it down to 30 mph for an 800W motor. I already know 1,000 watts is required but should run better than gearing for 32 mph.
What I really need is someone smart enough to tell me what exactly is wrong with those controllers. What electrical component is blown and why did the fuse not blow instead. Please let me know what you think.
LC. out.