Michigan, December 6, 2019
In a bid to expand its electric motor offerings, BorgWarner,
a global product leader in clean and efficient technology solutions for
combustion, hybrid and electric vehicles, has introduced its new high voltage hairpin
(HVH) 146 motor, which is expected to go into production on a light-duty hybrid
passenger car with a major OEM in early 2020.
This electric motor joins BorgWarner’s family of
patented and versatile HVH Series motors, available as fully housed motors or
rotor/stator assemblies. Flexible by design, HVH Series motors come in a
variety of configurations and offer scalable output and torque.
The HVH 146, an interior permanent magnet electric
motor, is best suited for belt-drive integration at P0 in hybrid electric
vehicle (HEV) applications, where a traditional alternator would be placed.
It’s mounted to the front of the engine through a high-tension belt system
which allows it to operate at high power levels and speeds up to 16,500 rpm.
Beyond being used as a stop/start device, it also can be used for
regeneratively charging the battery pack when the vehicle is braking or
The HVH 146 electric motor also provides a peak
torque of 65 nm as well as 95 per cent peak efficiency delivering clean
auxiliary power for increased driving range. Capable of delivering 35 kw peak
power and 65 nm (47.9 lb.-ft.) of peak torque while weighing only 14 kg (30.9 pounds),
it achieves more than double the power-to-weight ratio of a traditional
Dr Stefan Demmerle, President & General Manager,
PowerDrive System, BorgWarner, said, “As
a leader of clean and efficient propulsion systems, we continue to build up our
already comprehensive portfolio of powerful electric motors that deliver industry-leading
power and torque densities. The
introduction of BorgWarner’s HVH 146 motor further enables us to help our
customers simultaneously meet consumer needs and government regulations,
including the need for advanced, highly efficient and environmentally-friendly
Developed as a highly functional solution for OEMs,
the motor was designed for easy integration. It features a compact package with
high- and low-voltage connectors as well as the required coolant connections.
The HVH Series utilises a precision-formed rectangular wire and multiple layers
of interlocking hairpins in place of the traditional round wire windings. This
proprietary wiring method, along with the size of the wire, enables the motor
to achieve higher power density and efficiency. Its water-cooled properties add
to its impressive power density capability.