While having a discussion about the Ravigneaux gearset, Technician A says that in overdrive, the direct clutch drives the planetary carrier clockwise, causing the long pinions to walk clockwise around the held large sun gear. Technician B says that this occurs in third gear. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because in a Ravigneaux gearset, during overdrive, the direct clutch indeed drives the planetary carrier, causing the long pinions to walk around the held sun gear, which is a characteristic movement for achieving overdrive in transmissions using this gearset. Technician B's statement about this occurring in third gear is incorrect, as the gear configurations for third gear differ from those described for overdrive.

While Having a Discussion About the Ravigneaux Gearset, Technician a Says