The motors, designed by GM engineers, will feature Hitachi coil technology to enable high-speed and high-precision coil bending. This technology better utilizes precious space and improves torque density.
Hitachi also announced a new rotor design for production. Previously, magnets in the rotor had to be inserted individually, but a new magazine insertion system has been adopted to enable the magnets to be inserted in a bundle by polarity. This has increased the production process efficiency by approximately 60 percent.
Overall, Hitachi says production efficiency will increase by 54 percent.
The 2016-2017 Chevrolet Volt motors are produced at the Hitachi manufacturing facility in Kentucky before they are delivered for final installation in Michigan.