I am finally getting around to documenting my 3-phase bldc controller project. I have built one before this design. It works good but wanted to incorporate a few new features. This is my next generation build that will be completely made of off the shelf components. I designed the two parts of this project with PIC Flash micro-controllers. The final board layouts will use 28-pin DIP chips. One is programmed to control the motor speed and the other is a dashboard display of sorts. The motor controller will be completely programmable from the dashboard. It monitors the battery voltage and the motor current to keep things under constant control. I have added a current monitor that will detect discharge and charge current consumed from the battery. Also a slow speed reverse function that will only engage it the vehicle is still, throttle is off and a button is pressed and held in. The dashboard like display unit has a 2 line x 16 char display area that is back-lit with RGB LED's. Any color of LCD back-light can be selected. It will show the battery voltage, current, RPM, speed, power, throttle and drive time. The dashboard display has a non-volatile memory data-logger that can record certain parameters over time as you drive the vehicle. Great information to troubleshoot problem. The LCD display is piggybacked to my circuit board and housed in a clear box. Four user buttons with display. Easy to remove and connect to PC software which will allow you to program the controller ...
http://www.youtube.com/watch?v=UvWvzTBUlIw&hl=en
Wow really informative stuff you have shared with us. Hope you will continue more with prototype circuit boards. Thanks.!!
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