Abstract: An automatic transmissions for an automotive vehicle includes a variator of the traction drive type, the variator including an input disc, an output disc, and rollers driveably engaged with the discs and adapted to vary continuously the ratio of the speeds of the output disc and input disc. Each of two planetary gearsets includes a carrier, a sun gear and a ring gear and a set of planet pinions meshing with the respective sun gear and ring gear. Angular variation of the rollers causes the variator to drive the ring gear at a variable speed relative to engine speed and the carrier to rotate in accordance with the speeds of the sun gear and ring gear.

Abstract: An automatic transmission for an automotive vehicle includes a continually variable drive mechanism having one sheave assembly fixed to an intermediate shaft and the input sheave assembly supported on an input shaft, a low speed gearset driveably connected to the input shaft and an output shaft, a fixed ratio drive mechanism in the form of a chain drive providing a torque delivery path between the intermediate shaft and the carrier of the gearset, a transfer clutch for connecting and releasing the first sheave of the variable drive mechanism and input shaft, a low brake, a reverse gearset, a reverse brake, and a clutch for selectively driveably connecting the output of the fixed drive mechanism and a front output shaft.

Abstract: An automatic transmission for an automotive vehicle includes a continually variable drive mechanism having one sheave assembly fixed to an intermediate shaft and the input sheave assembly supported on an input shaft, a planetary gearset driveably connected to the input shaft and an output shaft, a fixed ratio drive mechanism in the form of a chain drive providing a torque delivery path between the intermediate shaft and the carrier of the gearset, a transfer clutch for connecting and releasing the first sheave of the variable drive mechanism and input shaft, a low brake, a second speed brake, a reverse brake, and a clutch for selectively driveably connecting the output of the fixed drive mechanism and a front output shaft.

Abstract: An automatic transmission for an automotive vehicle includes a continually variable drive mechanism having one sheave assembly fixed to an input shaft and the output sheave assembly supported on an intermediate shaft, a first gearset for producing forward drive low gear and a range of continuously variable gear ratios, a second gearset for producing reverse drive, a first fixed ratio drive mechanism in the form of a chain drive providing a torque delivery path between the intermediate shaft and a ring gear of the first gearset, a second fixed drive mechanism in the form of a chain drive located in a torque delivery path between the output shaft and a front drive shaft, a transfer clutch for connecting and releasing the output sheave of the variable drive mechanism and sprocket wheel fixed to that shaft, a coast brake and forward brake for holding alternately the ring gear of the first gearset, and a reverse brake for holding the carrier of the second gearset.

Abstract: An automatic transmission for an automotive vehicle includes a continually variable drive mechanism having one sheave assembly fixed to an intermediate shaft and the input sheave assembly supported on an input shaft, a low speed gearset driveably connected to the input shaft and an output shaft, a fixed ratio drive mechanism in the form of a chain drive providing a torque delivery path between the intermediate shaft and the carrier of the gearset, a transfer clutch for connecting and releasing the first sheave of the variable drive mechanism and input shaft, a low brake, a reverse gearset, a reverse brake, and a clutch for selectively driveably connecting the output of the fixed drive mechanism and a front output shaft.

Abstract: An automatic transmission for an automotive vehicle includes a continually variable drive mechanism having one sheave assembly fixed to an input shaft and the output sheave assembly supported on an intermediate shaft, a low speed gearset driveably connected to the input shaft and an output shaft, a fixed ratio drive mechanism in the form of a chain drive providing a torque delivery path between the intermediate shaft and the output shaft, a transfer clutch for connecting and releasing the first sheave of the variable drive mechanism and input shaft, a low clutch, a reverse gearset, and a reverse clutch for connecting and releasing alternately the output shaft and reverse gearset, and a clutch for selectively driveably connecting the output of the second fixed drive mechanism and a front output shaft.

Abstract: An automatic transmission for an automotive vehicle includes a continuously variable drive mechanism having one sheave assembly fixed to an input shaft and an output sheave assembly supported on an intermediate shaft. A planetary gearset has a sun gear fixed to the input shaft, and a carrier fixed to an output shaft. A first fixed ratio drive mechanism is in the form of a chain drive providing a torque delivery path between the intermediate shaft and a ring gear of the gearset. A second fixed drive mechanism is in the form of a chain drive located in a torque delivery path between the output shaft and a front drive shaft. A transfer clutch is provided for connecting and releasing the output sheave of the variable drive mechanism and sprocket wheel which is fixed to that shaft. A forward brake and reverse brake are provided for holding alternately the ring gears of the gearset, and a clutch for selectively driveably connecting the output of the second fixed drive mechanism to the front drive shaft.

Abstract: An automatic transmission for an automotive vehicle includes two variator of the traction drive type, each variator including an input disc, an output disc, and rollers driveably engaged with the discs and adapted to vary continuously the ratio of the speeds of the output disc and input disc, the output disc of the first variator producing a predetermined speed in relation to the speed of an input shaft and driveably connected to a disc of the second variator. A planetary gear unit includes a carrier, a sun gear connected to mutually connected discs, a ring gear connected to the output disc of the second variator, and a set of planet pinions meshing with the respective sun gear and ring gear. Angular variation of the rollers causes the second variator to drive the ring gear at a variable speed relative to input shaft speed and the carrier to rotate in accordance with the speeds of the sun gear and ring gear.

Abstract: An automatic transmission for an automotive vehicle includes a continually variable drive mechanism having one sheave assembly fixed to an intermediate shaft and the input sheave assembly supported on an input shaft, gearset driveably connected to the input shaft and an output shaft, a fixed ratio drive mechanism in the form of a chain drive providing a torque delivery path between the intermediate shaft and the carrier of the gearset, a transfer clutch for connecting and releasing the first sheave of the variable drive mechanism and input shaft, a low brake, and a reverse brake.

Abstract: An automatic transmission for an automotive vehicle includes a continually variable drive mechanism having one sheave assembly supported on an input shaft and the output sheave assembly fixed to an intermediate shaft, a planetary gearset driveably connected to the input shaft and a layshaft gearset, a fixed ratio drive mechanism in the form of a chain drive providing a torque delivery path between the intermediate shaft and the output shaft, a transfer clutch for connecting and releasing the first sheave of the variable drive mechanism and input shaft, a low brake, and first and second reverse clutches for connecting and releasing alternately the input shaft, output shaft and output shaft, and a clutch for selectively driveably connecting the output of the second fixed drive mechanism and a front output shaft.

Abstract: A multiple speed transmission producing a gear ratio in response to movement of a gear selector lever and manipulation of a clutch pedal includes three planetary gearsets each including a sun gear, ring gear, carrier rotatably supporting a set of planet pinions in continues meshing engagement with the corresponding sun gear and ring gear, and a brake drum driveably connected to one component of each gearset and adapted for alternate engagement by a brake band. The brake band is biased into engagement with the corresponding brake drum by a spring and is released from that engagement using a clutch pedal. A shift lever moves the band to the gearset that produces the desired gear ratio. Engagement of the brake band with each of the drums holds a component of the gearset against rotation on the transmission housing.

Abstract: A multiple-speed epicyclic transmission produces speed ratios in response to movement of a brake band among components of the gearset and subsequent engagement with the gearset component that corresponds to the desired gear ratio. The brake band is biased into engagement with a corresponding gearset component by a spring and is released from that engagement using a hydraulic or electric actuator. A cartridge moves the band to the gearset component that must be held fixed against rotation to produce the desired gear ratio. Engagement of the brake band with a brake drum or ring gear holds the corresponding gearset component against rotation on the transmission housing.

Abstract: A kinematic arrangement of a multiple-speed automatic transmission for an automotive vehicle includes three simple planetary gear units, hydraulically actuated clutches and brakes applied and released selectively, and an overrunning clutch that produces a one-way drive connection between the sun gear of the first gear unit and a nonrotating member, such as the transmission casing. Each planetary gear unit includes a sun gear, a ring gear surrounding the sun gear, a carrier, and a set of planet pinions in continuous meshing engagement with the sun gear and ring gear and rotatably supported on the carrier.

Abstract: A shift mechanism is provided for requesting an upshift and a downshift in a multiple gear ratio transmission of a motor vehicle. The mechanism comprises a shift lever for requesting a gear change, a controller for determining the proper gear ratio and for causing the proper gear ratio to be engaged when the shift lever is moved to request a gear ratio change, and a shift gate for directing the travel of the shift lever in a pattern including an upshift plane, a downshift plane and a delay position therebetween.

Abstract: A kinematic arrangement of an automatic transmission includes three planetary gear units having certain of their elements fixed to other elements mutually, a one-way coupler for holding the sun gear of the first gear unit, a clutch arranged in parallel with the coupler, a friction clutch driveably connecting a transmission input shaft to the sun gear of the first gear unit, a second friction clutch for driveably connecting the pinion carriers of the second and third gear units to the input shaft, a friction brake for holding the sun gear of the second gear unit against rotation, and a brake band for selectively holding the pinion carriers of the second and third gear units against rotation.

Abstract: A transmission includes an input shaft, an output shaft parallel the input shaft and a sleeve shaft rotatably supported by the input shaft. A clutch is provided to selectively engage one the input shaft and the sleeve shaft. The input shaft is releasably engageable with the sleeve shaft. Multiple forward gear and pinion pairs are provided wherein one gear of each of the gear and pinion pairs is supported by the sleeve shaft and the second of each gear of the gear and pinion pairs is supported by the output shaft. A transfer gear is rotatably supported by the output shaft and drivably connected to the input shaft. The transfer gear is selectively drivably connected to the sleeve shaft and the output shaft.

Abstract: A multiple-speed automatic transmission includes two simple planetary gear units and a third double planetary gear unit having two sets of planet pinions engaged mutually, one of the sets engaged continually with a sun gear and the other set engaged continually with a ring gear. An input shaft is driveably connected to the carrier of the double gear unit and to the sun gear of a first simple gear unit. The output is taken on a common element driveably connected to the ring gear of the second gear unit, carrier of the first gear unit, and an output shaft. The sun gear of the double gear unit is permanently fixed against rotation. A first brake is adapted to hold the sun gear of the second gear unit against rotation and a brake band is adapted to hold the carrier of the second gear unit against rotation. A first friction clutch connects the ring gear of the third gear unit, sun gear of the second gear unit, and carrier of the third gear unit mutually.

Abstract: A kinematic arrangement of a multiple-speed automatic transmission for an automotive vehicle includes a simple planetary gear unit and a compound planetary gear unit, hydraulically actuated clutches and brakes applied and released selectively, and an overrunning clutch that produces a one-way drive connection between the carrier of the first gear unit and a nonrotating member such as the transmission casing. The simple planetary gear unit includes a sun gear, a ring gear surrounding the sun gear, a carrier, and a set of planet pinions in continuous meshing engagement with the sun gear and ring gear and rotatably supported on the carrier. The compound gear unit includes a sun gear, a ring gear surrounding the sun gear, a carrier, a first set of planet pinions in continuous driving engagement with the sun gear, and a second set of planet pinions in continuous engagement with the ring gear and the first set of planet pinions.

Abstract: An automatic transmission for an automotive vehicle includes multiple planetary gear units, each including a sun gear, a ring gear surrounding the sun gear, a set of planet pinions continually engaged with the sun gear and ring gear, and a planet carrier rotatably supporting the planet pinions. Various brakes selectively hold elements of the gear units against rotation and several clutches releasably interconnect elements of the, gear units. A torque converter is adapted to produce a hydrokinetic drive connection between the crankshaft of an engine and the input shaft of the transmission, or to mechanically connect those components when a bypass clutch of the torque converter is engaged. Various elements of the planetary gear units are permanently driveably connected mutually.

Abstract: An automatic transmission for a motor vehicle includes first and second (36, 30) gearsets, two concentrically arranged planetary gear units (44, 54), certain elements of which are continually interconnected, friction clutches (76, 78, 90), brake band (88), friction brake (92), and overrunning coupling (80). The input shaft of the transmission is adapted to drive elements of the planetary gear units through an underdrive gear set and an over drive gear set. A single gear wheel (57) is formed with the ring gear (48) of the first gear unit and the sun gear (56) of the second gear unit. Carriers (50, 60) of the gear units are connected to an output shaft (64), which drives output gearing (66, 68) and a differential mechanism (70).