Patent ID: 7824292
Filing Date: 2010-11-02
Classification: F16D,F16H

Abstract:
1. A rear wheel drive (RWD) vehicle comprising: a six-speed transmission having three gear sets and five clutches, the five clutches including a two-mode selectable one-way clutch (SOWC) having a driving member and a stationary member, wherein the five clutches can be selectively engaged to connect members of the three gear sets to the stationary member to thereby enable a reverse speed and the six speeds of the transmission, the six speeds including: an engine braking first gear speed, a manual low speed, a first gear speed, and five forward high speeds; pressurized fluid; and a valve body assembly (VBA) having an integrated control mechanism operable for controlling the SOWC to thereby select between the two modes of the SOWC, the integrated control mechanism including: wherein the pressurized fluid moves the apply piston and actuator linkage in one direction to thereby lock the driving member to the stationary member, and to thereby select one of the engine braking first gear speed, the reverse speed, and the manual low speed; and wherein the return spring moves the apply piston and the actuator linkage in another direction to unlock the driving member from the stationary member during one of the first gear speed and the five forward high speeds.