We’ve been working on reverse-engineering a Smart ForTwo electric drivetrain with the goal of open sourcing the vehicle components for general electric vehicle conversions or other hobbyist uses. There are four main components in the Smart’s electric drive train: DC-to-DC converter, AC system, vehicle charger, and the drive motor with controller.
The DC-to-DC converter has the same function as an alternator for a standard gas powered vehicle: it supplies power for and maintains the charge of the 12 volt system. The air-conditioning (AC system) keeps the car cool on a warm day. The vehicle charger charges the high voltage battery pack from either a 110 or 220 volt standard household outlet, or from a standard J1772 vehicle charging station with the appropriate plug.
Note: All work completed so far has been to get the components functional while separate from the car, nothing has been done to decrypt CAN data packets. … Read more ->
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