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  1. Electric motor braking

    Technical Discussion
    For my tractor project, I need a reliable and simple way to provide braking, not only for slowing down while moving, but also as a parking brake. I will be using a three-phase induction motor with an inverter to step up 12V or 24V DC to about 270 VDC for the VFD. But it will be difficult to use...
  2. Planetary reduction drive

    Technical Discussion
    I thought I would see what might be involved in making a planetary reduction drive that might be applicable to wheel motors or as an adapter for a motor so that speed reduction and increased torque might be obtained. Here is what I came up with: This is what I want to make as a working...
  3. Alternative to Buying a Controller?

    Technical Discussion
    I'm looking for a way to make a cheap and easy to build (by theory) controller. I've poked around on the forums and really liked the idea of the mechanical PWM controller (http://www.diyelectriccar.com/forums/showthread.php/mechanical-pwm-46258.html) but it looks like there are too many...
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