aaronski
1 kW
I was climbing a particularly fiendish hill today and my controller just stopped. I'm thinking, damn, ruined my new bike! Its about 80 degrees out and I just climbed a 15-20% grade for about 2 minutes straight. 7 mph or so peddling hard. This is a 600w BMC v2 motor and a BMC 48v 30A controller. I checked the temps on the axle and the controller. The axle is about 120 degrees and the controller is about 150? I can put the back of my hand on both indefinitely, but on the controller it starts to hurt after a few seconds. Being a computer guy I can't think of what else to do, I unplug the battery and plug it back in, and it works. great. So I let it sit for a few minutes to cool off and then go back up the hill. I go uphill for a minute or so, then down for about 4 minutes, as I start pulling up the same hill, it happens again. I reboot, nothing is too hot, I try to go up and it dies again a few seconds later. I reboot and give it 3/4 throttle or so for another 2 miles with no problem, then WOT for another mile or so and it stops happening.
So, Does anyone have any experience with something like this? Am I blowing a fuse? On the flats, the bike seems capable of pulling 1100 watts indefinately, but I put it on a hill and the controller died on me. Do I need to setup a cooling fan? ambient temp too high? did I let the magic smoke out?
Thanks for any insight you guys might have, I'm still a total N00b on this...
So, Does anyone have any experience with something like this? Am I blowing a fuse? On the flats, the bike seems capable of pulling 1100 watts indefinately, but I put it on a hill and the controller died on me. Do I need to setup a cooling fan? ambient temp too high? did I let the magic smoke out?
Thanks for any insight you guys might have, I'm still a total N00b on this...