F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
74/138
F16H 47/06 (2006.01)
Patent
CA 1158067
ABSTRACT OF THE DISCLOSURE A multiple ratio automotive vehicle transmission having a hydrokinetic torque converter and a compound planetary gear unit that establish a plurality of underdrive ratios, a direct drive ratio and an overdrive ratio, the ratio changes from the first underdrive ratio to a second underdrive ratio from the second underdrive ratio to the direct drive ratio each being established by engagement by a single torque establishing device, brake means for controlling application and release of the torque establish- ing devices to effect transmission of reaction torque from a reaction element of the gearing to a stationary portion of the mechanism, said controlling means being adapted to establish optimum shift points during ratio changes regard- less of the magnitude of the torque being delivered at the instant a ratio shift occurs. Accumulator chambers are provided in parallel with clutches to cushion engagement of the clutches during drive ratio shifts.
417220
Bolz Ralph C.
Burcz Lawrence D.
Leonard Allan S.
Ford Motor Company Of Canada Limited
Sim & Mcburney
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