The transmission is updated with the latest and greatest from Goodyear, this makes it more more efficient and generates less noise. The Sevcon controller is a size bigger than in generation 3 and it uses a sine/cosine sensor in order to control the rotation of the electric motor. The sine/cosine sensor is much more precise than the older UVW hall sensor.
The tractions battery pack has been upgraded to 48V 160Ah and is controlled by a v.3 minibms. The minibms talks directly to the 1.5kW Elcon chager. I buzzer is also used to indicate high/low cell voltage.
Wilda is a Ockelbo B600 made in Sweden in 1980. She's been thoroughly renovated and prepped for hybrid electric propulsion. Her measurements are:
LOA: 18 feet
Beam: 6.6 feet
The motor controller, charger, BMS and all other electronics are mounted on a "power wall" in the cabin.
The plan is to perform initial sea trials in early spring 2017. The drivetrain has been thoroughly benched in the lab so I not to worried.