The Amp Hour

An Interview with Bob Simpson - Ardent Automotive Artisan

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Welcome, Bob Simpson of EV Drive!

 

  • Bob started the new venture once inspired by the Tesla motors story and the white papers they published.
  • Bob converted a BMW 325.
  • There are pictures of the Range Extender (REX) on the e46 page.
  • A proof of concept for the batteries was on a motocross bike, the e-moto-CRF250R
  • EV Drive is now mostly in the business of supplying subassemblies to other manufacturers and enthusiasts.
  • Higher voltage is better for powering these types of motors. Upwards of 700V out of the battery assembly!
  • Bob used standard A123 battery packs and built a Battery Management System (BMS) around each cell (floating).
    • Got any more questions for Bob? Leave them in the comments!
    ...more
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    The Amp HourBy The Amp Hour (Chris Gammell and David L Jones)
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