Chuleo said:Yes it has indeed an overvoltage protection. My controller went into overvoltage protection mode when it was hooked up to a 92V Power supply.
The controller measured ~94V although the voltage was only 92.3V (measured with an accurate multimeter). When decelerating from high speed/no load the controller went into protection mode and had to be switched off and on to get functional again.
But having an overvoltage protection doesn't mean one should at the limits of the "safe operating area"
MitchJi said:Hi,
5,What’s your current voltage level?
For the moment ,our controller ‘s voltage range from 48V to 72V,our 96V will come out soon,let’s looking forward to this new generation!
sn0wchyld said:Ive been chasing the russians to see if they can produce a hv version of theirs too, but getting a respone from them is kinda hit and miss........
marcexec said:The question about the RC type outrunners kind of got by the board. Anyone trying these on 80mm+ Turnigys or similar? Max eRPM?
marcexec said:@Zombiess - I suppose there is no more pushing the envelope as a higher erpm won't benfit your applications?
zombiess said:I loved running 30S on one of my bikes, but I was after the acceleration and power it provided with the Xie Changs. With the controllers I've built and this one, I can get the same level of acceleration and top speed without needing the high voltage. The Xie Chang controllers did not do a good job at regulating phase current output and if that is your only reference (as it was mine until I got my Lebowski controller running a little while ago) it's misleading. The Cheap controllers like the Xie Chang will allow a lot more phase amps to flow vs a controller with phase current control. Adding more voltage to a Xie Chang without changing the settings = more acceleration and more top speed. Depending on the battery voltage and motor, with phase current control, adding more voltage only = more top speed. With phase current control based controllers I have not noticed any additional acceleration going from a 75V battery to a 100V battery.
Scott said:zombiess said:I loved running 30S on one of my bikes, but I was after the acceleration and power it provided with the Xie Changs. With the controllers I've built and this one, I can get the same level of acceleration and top speed without needing the high voltage. The Xie Chang controllers did not do a good job at regulating phase current output and if that is your only reference (as it was mine until I got my Lebowski controller running a little while ago) it's misleading. The Cheap controllers like the Xie Chang will allow a lot more phase amps to flow vs a controller with phase current control. Adding more voltage to a Xie Chang without changing the settings = more acceleration and more top speed. Depending on the battery voltage and motor, with phase current control, adding more voltage only = more top speed. With phase current control based controllers I have not noticed any additional acceleration going from a 75V battery to a 100V battery.
Is the acceleration the same the whole way with both the Xie Chang and Sabvoton controllers?
What I have noticed is with my Xie Chang EB324 controller is that hard acceleration on 100v (24s) falls off around 30-40 mph but I like 126/133v (30s-32s) so much more because the hard acceleration stays on much longer to higher speeds!
Regen that strong and down to 0 RPM sounds amazing.
GiantEV said:Looks like this would work great for those of us running 20S lipo. I'm curious about timeframe as well.
Of when they will be available for sale. I thought you were still working out some last details before you start selling them.zombiess said:GiantEV said:Looks like this would work great for those of us running 20S lipo. I'm curious about timeframe as well.
Time frame of what?
GiantEV said:Of when they will be available for sale. I thought you were still working out some last details before you start selling them.zombiess said:GiantEV said:Looks like this would work great for those of us running 20S lipo. I'm curious about timeframe as well.
Time frame of what?
It's a 72v controller, 85v fully charged is the most I would ever try, its not safe. Users really shouldn't go past 80v IMO. That leaves 20v of overhead. If you ever scope a controller in use you wouldn't think about running such small margins.steveo said:Is there any settings in the software to increase overvoltage protection past 95v?
zombiess said:It's a 72v controller, 85v fully charged is the most I would ever try, its not safe. Users really shouldn't go past 80v IMO. That leaves 20v of overhead. If you ever scope a controller in use you wouldn't think about running such small margins.steveo said:Is there any settings in the software to increase overvoltage protection past 95v?