John in CR
100 TW
Congrats on getting her rolling outside and so close to buttoning it up to have to address mechanical limits. Your persistence is an inspiration to us all.
Arlo1 said:Nothing broke. The Desat tripped and that is as I give it throttle. If I don't give it to much throttle it is fine. I made some changes and its better but not fixed but better.
SlowCo said:As I mentioned earlier all this is way over my head but therefore also awesome to see what is possible.
Why?okashira said:I
The Leaf motor comes with a resolver. Why are you not using that?
okashira said:But how many hall sensors? You want at least 3° electrical accuracy for good FOC performance. The resolver can get you that... but a hall?
Can you code in speed and acceleration based interpolation of the hall outputs?
Halls are only used to start the motor, so low rpm. And in 2.80 it has a PLL for hall start that does interpolation (basically a low bandwidth phase filter).okashira said:But how many hall sensors? You want at least 3° electrical accuracy for good FOC performance. The resolver can get you that... but a hall?
Can you code in speed and acceleration based interpolation of the hall outputs?
zombiess said:What's preventing even higher power at this point? Tuning?
Traction. It lays rubber the same at 450 phase amps as it does at 550 phase amps
But full power ( actually full torque) at a launch is limited by code. Lebowski has new code to solve this. Changing how the sensored operation works. Right now Sensored operation is week and inefficient and I can't run sensorless at really low speeds and full power yet. Tuning has helped me get full power at lower speeds in sensorless but its not done so yes more tuning will help. I did about 40-50 runs in front of my shop laying rubber Wednesday night.
It looks like it's going to move quite well, going to surprise lots of people with it. I love sleepers.
SlowCo said:Awesome result!
Time to order some serious tires something like:
http://www.toyotires.ca/tire/pattern/proxes-r888 8)
zombiess said:I run Proxes R888 on my Z06 at 640RWHP and love them, it hooks on the street in 2nd gear and hazes them in 1st.
A big warning with them is not to drive them if its < 10C outside because the rubber compound becomes brittle, so might not be the best tire if you plan on any cold weather driving.