Recent content by kywalda

Yes - the codes are there and the displayed values are increasing or decreasing in the right direction in 0.5 steps. I was just wondering about the high values...

Hi Bas, now I connected 2 temperature sensors to the controller. In setup m) c) "temperatur readings" I get quite high values about 120.0. Outside temperature is only 16 degC. Are the readings "raw" not degC (version v2p93) ? Or do I have any mistakes on my cables? Thanks and have a nice...

This is what I had before. But there was a kind of "rumpling-speed". With regen battery current of 80A is was between 25 and 35 km/h. Above and below that speed there was a constant "negativ torque". But in this speed area the controller detected an over current and switched off regen for some...

Hey Arlo, you're scaring me! My emax is running so fine and the regen is working so smooth. Even from braking down with regen from 80 km/h... Maybe it's a good idea to put a strong diode anti-parallel to my fuse. So regen will pass through but a short cut will break the fuse.

Dear Bas and friends, just wanted to say thanks a lot for the great contoller, tipps and hints to get my scooter running :D Finaly I solved my two problems (weak power on start and "rumpling" on regen) by pushing up the phase current to 200A (maximum of current sensors). Then I put the...

I would try to use the built-in resolver. There seems to be 16 sensors. The output has 6 pins. One for Vcc, one for GND, 4 for the signals (parallel 4 sensors) - maybe... Try to find Vcc (maybe RED mostly 5V) and GND (black?) and put an oscyloscope to the others. With some luck you'll have nice...

Oups - I don't have any RC filters in the hall lines... The current sensor line filters is this 1K / 10n?

A lot of math! I'll read it next weekend :-)

As output stage I found a reference design from TI http://www.ti.com/tool/TIDA-00364. It is rated at 8KHz to have an efficiency > 95% at this frequency. The Output is a very very clean quare with no spikes even on this short deadtime. The fieldweaking was switched on later and results in a...

Why will voltage rise? Isn't it constant (battery voltage)? So when climbing a hill with full throttle in dr3 the phase current will rise to max.

Yes - about 50% of phase current.

I also noticed, that if you put in erpm menu a 0 to 0 value to the reverse ramp (I do not use the reverse function), the controller will not work in forward. So I entered some "dummy values" to the reverse ramp. Just for your information.

This is just the way how I solved the problem with the low torque on start. But I still have the "rumbles" when returning from dr23 to dr2. Especially when I use regen. In the manual the recovery menu is very little commented. I hope to find a solution there. What do all the parameters talk...

I also think it's a timing problem. maybe this is another feature request. In the hall menu a "shift hall angles" with values from -60 to 60 degree. This is added to all of the measured angles...

The motor is a chinese 4 KW brushless DC: http://www.proud-eagle.com/product.asp?plt=31&pone=5 I did not open it, but it seems to have 30 poles (30 ticks on the halls per revolution). My main fuse is rated at 50A. I was not suprised when it could not stand my 80A max battery current. With the...