It will use 1/9th the slots worth of 18 Ga. We have figured out another winding pattern for a fourth try. It too softened the bottom end torque some, but extended the top RPM to 3,800 and lowered the current under cruise to an acceptable rate between the other two tries. wires, but we are skipping 2 slots on each pole. It is back to 1/6th of the slot worth of 18 Ga. We currently have the third generation winding in the motor. It moved the torque up some and softened the initial take off some, but extended the RPMs up to 4,100, but it was at the cost of increased current draw under a cruise.
The second winding was a full 1/3rd of the slot worth of 18 Ga. wires and wound two times around each pole, times the three phases filled the slot. This winding used 1/6th the slot worth of 18 Ga. It had great bottom end torque, a decent current draw under cruise, but was limited to 3,100RPMs. The motor was tested to 221 foot lbs at 300v and 400 amps.I have been kind of remiss in my posting lately. These are voltages much more amenable to conversion vehicles. Azure Dynamics used them with a 335v pack using their DMOC645 inverter controller.
This motor was specially produced for AZD and is wound for a relatively low 215vdc. What is so unusual about these motors is that Siemens typically designs very high voltage (600-750v) three phase AC inducdtion motors. This motor was specially produced for the Azure Dynamics Ford Transit Connect project and we obtained a large lot of 165 of these motors, brand new in the box, from the Azure Dynamics liquidation auction. Siemens makes extremely high quality heavy duty AC induction motors - mostly for yachts and busses, but some trains as well. This is perhaps the most unusual AC Induction Motor in the world. This configuration allows you to use TWO separate controllers to DOUBLE the power into your drive train. Matt Hauber developed a technique for marrying these two motors while retaining separate controls and adding a 1 3/4 inch keyed shaft to the front of the motor replacing the small 26 mm splined shaft that comes with these motors normally. This is the TWIN version of our popular Siemens 1PV5135 motor.
TWIN Siemens 1PV5135 4WS14 AC Induction Motor It was probably specially wound by Seimens for the Azure Dynamics eTransit Connect project. This unit is tagged at a nominal voltage of 215 volts and 47 kW continous power at variance with the data sheet on this motor. Liquid cooled: 50% glycol/water at 16 liters/min This is the equivalent of 134 horsepower. The motor was tested to 221 foot lbs - 297 Newton Meters at 300v and 400 amps. What is so unusual about these motors is that Siemens typically designs very high voltage (600-750v) three phase AC induction motors. This motor was specially produced for the Azure Dynamics Ford eTransit Connect project and we obtained a large lot of these motors, brand new in the box, from the Azure Dynamics liquidation auction. But it was made specifically for CODA and varies significantly from the normal UQM product offering.
We have developed software for the GENERALIZED VEHICLE CONTROL UNIT (GEVCU) to safely and fully operate this custom OEM inverter. These are new units originally built FOR CODA AUTOMOTIVE as an OEM customer and contain custom software built for the Coda production vehicle. This hardware is NOT the same as that shipped by UQM Corporation as new product with full product support and documentation. This package offers the advantages of a small package with light weight and high power that are the hallmark of the modern permanent magnet three phase motor. We have further arranged to continue supplies of these direct from UQM on the same terms. These were received from the CODA vehicle bankruptcy and are essentially new, but have no warranty and no manufacturer support.