Search found 105 matches

by Hummie
13 Oct 2016, 17:42
Forum: General
Topic: Vesc lvc and braking downhill
Replies: 29
Views: 4258

Re: Vesc lvc and braking downhill

ok...ok..
but....
there is some power being generated as the lights on the vesc go on when batteries aren't connected and you ride downhill. there is a complete circuit in there
by Hummie
12 Sep 2016, 17:13
Forum: General
Topic: Vesc lvc and braking downhill
Replies: 29
Views: 4258

Re: Vesc lvc and braking downhill

no one has said where the energy goes! there seems to be confusion. I believe there is power being created by the coasting wheel no!? obviously so as it'll destroy the vesc if there are no batteries. yet the batteries dont get charged unless going fast enough. where does the power go!? that's a fair...
by Hummie
12 Sep 2016, 16:59
Forum: General
Topic: Vesc lvc and braking downhill
Replies: 29
Views: 4258

Re: Vesc lvc and braking downhill

but coasting does generate power, enough to ruin the vesc quickly if there are no batteries. just coasting. so I was told. coasting will light up the vesc without batteries too. power seems to be generated and curious where it goes if there ARE batteries since they aren't being recharged. i understa...
by Hummie
12 Sep 2016, 16:29
Forum: General
Topic: Getting max power using the motor and battery amp limits
Replies: 13
Views: 6897

Re: Getting max power using the motor and battery amp limits

sorry if you were expecting the motor stated limits there aren't any. I've got temp limits of the magnets and wire enamel but that's it. the motors are 4725 stators and the amount of power they can take is unknown and I'm trying to find out the max power possible. I appreciate your knowledge and hel...
by Hummie
12 Sep 2016, 16:23
Forum: General
Topic: Vesc lvc and braking downhill
Replies: 29
Views: 4258

Re: Vesc lvc and braking downhill

sorry just trying to understand how you can have a voltage yet no power. if the batteries aren't there you blow up as the power can be too much to dissipate in the vesc but if the batteries are there the batteries dont take the power either. that's what I"m asking about. where is the power goin...
by Hummie
12 Sep 2016, 06:41
Forum: General
Topic: Getting max power using the motor and battery amp limits
Replies: 13
Views: 6897

Re: Getting max power using the motor and battery amp limits

I'm set to 70/70. The motors can't do that continuously but it's great for blasting up hills as u say. I'd like to get as much power out for short bursts and keep pushing numbers higher. Can I do this safely since there's a auto shut-off if things overheat on the vesc? I think I will know before I h...
by Hummie
12 Sep 2016, 06:22
Forum: General
Topic: Vesc lvc and braking downhill
Replies: 29
Views: 4258

Re: Vesc lvc and braking downhill

Ok. So when it's freewheeling downhill but not overly fast where's the energy going that's being created by the motor? It's enough to burn the vesc of the batteries aren't there, but if they are there it's still not going to them
by Hummie
11 Sep 2016, 16:56
Forum: General
Topic: Vesc lvc and braking downhill
Replies: 29
Views: 4258

Re: Vesc lvc and braking downhill

I was wondering and writing about coasting. When ur coasting the motor is generating no? I thought u wrote it will not charge the battery though unless u go fast enough to produce a voltage higher than the battery voltage
by Hummie
10 Sep 2016, 17:08
Forum: General
Topic: Getting max power using the motor and battery amp limits
Replies: 13
Views: 6897

Re: Getting max power using the motor and battery amp limits

Was vedder's overlay video done in bldc or FOC? Do u think the equation will be different depending on the different program? But why would u think 1000watts at close to zero rpm would be more of a problem than at a higher speed? Just a bit more wind but otherwise isn't it the same? I feel lthe more...
by Hummie
09 Sep 2016, 19:17
Forum: General
Topic: Vesc lvc and braking downhill
Replies: 29
Views: 4258

Re: Vesc lvc and braking downhill

if going downhill coasting there is power being produced in the motor. supposedly you must be going fast enough to produce a voltage higher than the battery's to recharge the battery. what happens to the power being produced by the motor if you arent going fast enough to be producing a voltage as hi...

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