AUBURN HILLS, Mich.,
Aug. 22, 2019 /PRNewswire/ -- The
latest generation of BorgWarner's all-wheel drive (AWD) coupling
has been optimized with a compact brushless direct current (BLDC)
motor and highly integrated electronics. The resulting actuator
unit has very high durability and weight savings of approximately
15 percent in comparison to a conventional AWD coupling. The
lightweight, high performance design has best-in-class response
times, torque density and accuracy. As a result, vehicle handling,
stability and traction are enhanced. At the core of the coupling is
a patented 6-piston centrifugally controlled piston pump that both
creates and controls system hydraulic pressure. Now powered by
BorgWarner's in-house design of BLDC motor, the latest generation
coupling is a key enabler for Eco mode systems due to its high
stop/start capability. Motor control algorithms, which enable
system optimization, are expected to lead to the introduction of
new actuator applications in hybrid and pure electric vehicles.
![BorgWarner’s latest all-wheel drive (AWD) coupling features a compact brushless direct current (BLDC) motor and highly integrated electronics BorgWarner’s latest all-wheel drive (AWD) coupling features a compact brushless direct current (BLDC) motor and highly integrated electronics](https://mma.prnewswire.com/media/963836/BorgWarner_Gen_VI_Coupling.jpg)
"BorgWarner continues to innovate, developing leading
technologies that not only improve performance but support
fuel-saving stop/start systems with outstanding durability," said
Dr. Stefan Demmerle, President and
General Manager, BorgWarner PowerDrive Systems. "Based on our
tradition of providing customers with competitive and refined
solutions, this latest generation offers great performance and
very competitive packaging, weight and efficiency. It also creates
a platform for the introduction of actuators for new systems in
hybrid and electric vehicles."
The pre-emptive AWD coupling operates independently of the
differential speed between two axles, providing locking torque,
depending on road conditions and vehicle load distribution. For
drivers, this means well-balanced torque control at any speed and
at all times.
The operational lifetime of a DC motor is usually limited by
wear on the brush system and the commutator. This drawback is
completely eliminated by a BLDC motor because there is no contact
between rotor and stator. When a vehicle is in Eco mode in
situations where no torque transfer is needed, the motor can be
completely shut off, reducing the energy consumption of the whole
system. It is also possible to actively manage the lubrication flow
to the friction disc pack to minimize oil churning losses.
Other key advances in the new AWD Coupling include an integrated
electronic control unit (ECU) which reduces cost and improves
packaging. In addition, the ECU and stator diameters are aligned,
allowing an efficient assembly process.
About BorgWarner
BorgWarner Inc. (NYSE: BWA) is a
global product leader in clean and efficient technology solutions
for combustion, hybrid and electric vehicles. With manufacturing
and technical facilities in 67 locations in 19 countries, the
company employs approximately 30,000 worldwide. For more
information, please visit borgwarner.com.
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SOURCE BorgWarner