Okey folks, thanx for the replies.
I noticed user "d8veh", have alsmost the same controller as me. But dont grasp what shunt issued, the bike stop accelerating beyond 25km/h (if I go faster downhill and by muscles, same payload as turned off. Full or half -full battery, just affects acceleration force in between 0-25km/h).
Found this product to resemble it:http://web.archive.org/web/201003112031 ... ?ProId=322
(they call it ".. Micro Controller", dropped them a short email message, see if they respond)
The thing have a Cypress cy8c24533, uc. I found no firmware, no source. And cant find any external oscillator (to fool the clock).
There are a jumper on-board the circuitboard, labeled "enactment" (look above the tape on the backside of my photo). I tested to short it, but didnt notice any difference.
I have a oscilloscope, and measure same squarewaves/pwm of max 190Hz (against 3 wires, from and to the motor).
Cant do much constructive stuff, with this Chinese Blackbox. Wanto get a controller, that is modifiable, and have a website.
I have a 300W motor, 36V battery (though I measure 42V on full), etc. Attach a picture of the bike, as is.