That sounds awesome Paul!
Being able to adjust it according to motor operating parameters would also give you options for optimizing motor efficiency. If you don't boost as high, you won't have to buck as much on the inverter side.
You can kind of see this in operation with the Prius tests @ ORNL. They did a range of tests with the bus voltage at 250V, 500V, and 650V.
Nice Work!!
- E*clipse