Search found 107 matches

by Hummie
05 May 2017, 06:08
Forum: General
Topic: esc efficiency compared to motor.
Replies: 4
Views: 1010

esc efficiency compared to motor.

how efficient is the vesc compared to a motor on an electric board?
by Hummie
03 May 2017, 06:55
Forum: General
Topic: Pwm and inductance
Replies: 1
Views: 370

Pwm and inductance

Since a magnetic field colapses instantly with each disconnect of a circuit it makes sense that the coils would produce an extremely powerful torque ripple at the motor's pulse train frequency. Why doesn't this happen?

Is the motor amps a peak or an average?
by Hummie
05 Apr 2017, 21:15
Forum: General
Topic: Boost efficiency with settings?
Replies: 0
Views: 524

Boost efficiency with settings?

Other than put in the bldc and foc test results and change the motor and battery amp limits I do nothing.
by Hummie
04 Apr 2017, 21:19
Forum: FOC
Topic: Torque increase
Replies: 5
Views: 1988

Re: Torque increase

On my board it has less power in foc and less speed given the same amp settings.
by Hummie
04 Apr 2017, 20:23
Forum: General
Topic: Field Weakening
Replies: 26
Views: 4933

Re: Field Weakening

Pf26 can u give an example of how inefficient it is to run a higher kv and is it an increase of heat in the motor or just the controller? I have a 90kv motor and would like the motor to stay as cool as possible and also have the option to hit higher speed.
by Hummie
04 Apr 2017, 15:24
Forum: General
Topic: Max motor amps
Replies: 5
Views: 1165

Re: Max motor amps

Thank you I'll get logging today!

Begs another question: how can you have 200 amps in the motor and no inductance and motion.
by Hummie
03 Apr 2017, 07:07
Forum: General
Topic: Max motor amps
Replies: 5
Views: 1165

Re: Max motor amps

Maybe I'm not loading the motor enough to hit the 200 motor amps? Is it measuring current going to or coming from the motor?
by Hummie
02 Apr 2017, 19:35
Forum: General
Topic: Max motor amps
Replies: 5
Views: 1165

Max motor amps

ive been riding at 200 motor amp limi and 48 battery amp limit for a while and the performance is a huge improvement with low speed power and much less cogging. Do I only have to worry about heat, just as with the battery amp limit, or are other dangers possible with the high motor amp limit? I hear...
by Hummie
10 Mar 2017, 08:11
Forum: General
Topic: 14S VESC ?
Replies: 97
Views: 19610

Re: 14S VESC ?

I'll bring it down to 165 which is seemingly the limit then I guess but if it truly can't measure the current why haven't I blown up? maybe the 200 amp currrent is smoothed out to a lower current by the time it makes it to the sensors? the 200 is the best performance I've had and without getting the...
by Hummie
09 Mar 2017, 06:58
Forum: General
Topic: 14S VESC ?
Replies: 97
Views: 19610

Re: 14S VESC ?

Been running at 45 battery amps and 200 motor amps happily. Is there a risk doing this? I'd heard there was some loss of over current protection or something. Running a single hub motor with 12s foc. My other confusing question before..is it less efficient to run with a high voltage battery that giv...

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