Actually from what I have read, it looks like you could just replace the NiMH batteries with the LiO batteries and invoke the EV to make this work in its simplest form. Because of the increased capacity of the LiO batteries and the EV the car would run on battery only under 34 miles per hour and would have battery assist over 34 MPH. The Prius is designed to not allow the charge to get below 20% or over 80%. If it does then the ICE kicks in regardless of if the EV mode was invoked or not.

I'm sure there is more to it. Edrive has a display on their system that shows system status. This may just be an additional feature to help monitor the system status.

The guys over at Edrive systems are inundated with emails and are no longer replying to them. Why they publish their email address is a question.

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