auraslip wrote:Couldn't you just use a separate 5v dc-dc to power the throttle?
The best solution IMHO is to build the double-hall throttle. It is the natural solution and builds in slightly less power to the front hub.
liveforphysics wrote:This reminds me of something funny. The Sevcon controller manual calls out an "isolated double sensor throttle" for redundancy in the event some system fails, it only uses the lower value of the two throttle input readings.
We asked them, hey! Where do I find one of these???? They said, "umm... they make one in a foot pedal for fork-lifts... we've never seen any for a motorcycle... "
Jozzer wrote: For dual Kelly controllers on one throttle, we just tied gnd from both throttles and used just one controllers 5v supply to power them, this worked out well..
Arlo1 wrote:So last night on my bmx with 24s 2p lipo and X5 and a 24fet running ~180 amps peak (detuned a bit for less waste) I was ripping and hit the railway tracks then my throttle fet funny and my bike slowed down I twisted off then on and it was ok for a bit then nothing again so I let off and wham it went full throttle.... I have ebrakes thank god and used them to keep the controller shut off till I pulled over and found the cheep plastic housing was busted so the magnet was spinning away from the hall in both directions! I carefully road home but man I now understand we need something with a fail safe!
methods wrote:The 20A ebike guys may not understand...
methods wrote:I was once walking my bike through the living room past my mother in law when I accidentally blipped the throttle.
liveforphysics wrote:The Sevcon controller manual calls out an "isolated double sensor throttle" for redundancy in the event some system fails, it only uses the lower value of the two throttle input readings.
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