Patent ID: 9327598
Filing Date: 2016-05-03
CPC Classification: F16H

Claim Text:
1. A transmission for a vehicle comprising: an input member; an output member; a stationary member; a rotatable hub; a first, a second, a third, and a fourth planetary gear set, each planetary gear set having a first, a second, and a third member; wherein the input member is connected for common rotation with the second member of the second planetary gear set; wherein the output member is connected for common rotation with the second member of the fourth planetary gear set; a first interconnecting member continuously connecting the second member of the first planetary gear set for common rotation with the first member of the fourth planetary gear set; a second interconnecting member continuously connecting the third member of the first planetary gear set for common rotation with the third member of the second planetary gear set; a third interconnecting member continuously connecting the first member of the second planetary gear set for common rotation with the third member of the third planetary gear set; a fourth interconnecting member continuously connecting the first member of the third planetary gear set for common rotation with the third member of the fourth planetary gear set; six torque-transmitting mechanisms each of which is engageable to connect a respective one of the members of the planetary gear sets with one of the input member, the stationary member, another respective one of the members of the planetary gear sets or the hub; wherein one of the six torque-transmitting mechanisms is a mechanical on-off clutch having a first member fixed to the stationary housing and a second member fixed to the first member of the first planetary gear set; wherein the mechanical on-off clutch is engaged to prevent rotation of the first member of the first planetary gear set in a first direction and freewheels when the first member of the first planetary gear set rotates in an opposing second direction; and wherein the six torque-transmitting mechanisms are engaged in different combinations of four to establish multiple speed ratios of the input member to the output member.