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Transmission manufacturer
Getrag unveiled its new concept in hybrid drivetrains—a dry dual-clutch
transmission linked to an electric rear axle—at the Frankfurt Motor
Show this September.
In tune with the environmental
undercurrent of the show, Getrag launched the concept, developed
jointly with Bosch, under the banner of “Ecology Needs Dual Power.”
The company also announced the latest transmissions in its
PowerShift range, introducing variants with both wet and dry dual-clutch
systems.
The agreement between Getrag
and Bosch is designed to launch a range of parallel hybrid systems
using Getrag PowerShift dual-clutch transmissions and Bosch
electrical architecture for the alternator, electric drive system,
and power electronics. Designed around a six-speed PowerShift
transmission, the resulting systems will feature modular designs
that offer flexibility in the hybrid drivetrain.
For instance, the system can be
arranged as a conventional parallel hybrid, with the e-machine as a
combined alternator/ drive motor positioned between the internal-combustion
engine and the dualclutch mechanism.
Alternatively, the e-machine
can exploit the dual-clutch transmission’s capabilities by mounting
an alternator/motor separately and axially parallel to the
transmission. Drive is then taken via an electromagnetic shift unit
from one side of the split transmission (either the “odd” or “even”
gear sets). The alternator/motor can be driven from one side of the
transmission or switched from one to the other as needed. The
electromagnetic shift unit can also disengage the alternator/motor
drive completely. Getrag has named the system “Torque-Split” |
