Stellantis may be looking to adapt planetary gear hybrid systems—like the one currently used in the Chrysler Pacifica Hybrid plug-in hybrid minivan—to more rugged vehicles, a patent filing indicates.

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Harmonic Drive has integrated high precision, compact design and reliability to develop the new range of HPGP planetary gears. Unlike conventional planetary gears, the new series offers consistent ...

Automatic shift transmissions were first introduced on a broad scale in the late 1930s, and while they were a novelty for many years, today they are very near a standard piece of equipment on most ...