This Dynamic damper spring set has been laid out along the same diameter as the original torsion damper
Lowering the torsion damper
stiffness, adding dynamic dampers on the resonating body component and moving the engine operation point from the optimized point can reduce this booming noise, but the resulting increased cost and sacrificed fuel economy may degrade the vehicle's market value.
A lighter torsion damper
and new engine clutch which features fewer clutch discs reduce drag and contribute to a more efficient transfer and use of power.
There are other modifications, like the addition of a new case and torsion damper
, but fundamentally, the architecture of the system is such that off-the-shelf transmissions developed for traditional internal combustion engines can be deployed for future hybrid systems without having to incur major engineering costs.