| TORSIONAL FILTRATION IMPROVEMENT WITH CENTRIFUGAL
PENDULUM DMF IN REAR WHEEL DRIVE SYSTEM |
| Sungkoo Lee, Suresh Kumar Jayachandran, Yongho Jang, Dongsoo Lee |
| Valeo Pyeong Hwa |
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| ABSTRACT |
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All countries regulate CO2 emissions, triggering similar evolution on powertrain at a similar pace all over the
planet. Engine irregularities are more severe due to downsizing and uptorquing. Torsional filtration targets are also challenging
powertrain performance. This drives powertrain market and more efficient torque transfer system. Conventional filtration
solutions such as clutch/dampers and DMF have their own limitations. For the past few years the addtion of centrifugal
pendulum absorber meets the required filtration target. The vehicle architecture and type of damper accompanying pendulum
absorber contribute to the dynamic stability and performance. In this study, we have shown the behaviors of DMF pendulum
in rear wheel driveline with six speed manual transmission. Normally the performance of a pendulum in high engine speed
range is not so efficient compare to lower speed range. This study mainly focuses on variations on design parameters of
pendulum, which enables better filtration in high speed range. |
| Key Words:
Torsional vibration, DMF, Pendulum, Rear wheel drive, Pendulum damping |
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Corresponding Author.
Sungkoo Lee , Email. 
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