skazburg wrote: ↑
Aug 19, 2018 1:01 am
The difference in weight is small.
The difference in power 10x
I don't understand this. You say your motor is 10 times more powerful then a similar BLDC motor? But a few posts ago it surely seemed like the output power of the Denzel motor was the same for his standard motor and your version. It seemed your motor and Denzel motor had the very same power figure. Same kw output. Explain this to me and help me understand, how can you say that your motor is more powerful, yet when a direct compare is done with Denzel motor power output is the same?
This is asked once before in this post; viewtopic.php?f=11&t=91796&start=25#p1403174
So how is DA-90S motor better than d7500 BLDC motor?
I try to do the math and it seems peak should be north of 20 kw for few seconds bursts in this post; viewtopic.php?f=11&t=91796&start=50#p1403190
Max peak output from controller = 72v x 350 A = 25 2000 w. Minus losses in both controller, wires and motor.
Anyway it seems peak output watts for a few second should be around 20 kw. Unless saturation occur before that
This should say something about efficiencies of your motor, yes? What is DA-90s motors max kw output power with 350 A @72V?
This is important for me as it help me understand what to expect from the motor, it helps me understand what kind of performance I can expect i various scenarios and then it will help to determine if this is the right motor for me or not. As a mid drive I understand we can up the torque by swapping sprockets and gear down. But for practical use @72v we also need to factor in top speed. So how many turns per volt does the DA-90S motor have?
Recap of questions I feel is not answered yet:
What is peak burst power output from DA-90S motor compared to the d7500 BLDC motor? (Let's say down to 3-4 seconds)
What is the efficiencies of the DA-90S motor? (Some BLDC hub motors claims up to 92-95% efficiency, most seems to vary from 75-85% ish)
How many turns per volt does the DA-90s motor have? Looking for max motor RPM @72v.