Category
page 1Automotive transmission technologies
clutch
thumb|Friction disk for a dry clutch
thumb|Plate clutch
thumb|Cone clutch
differential
type of simple planetary gear train
universal joint
mechanism with bendable rotation axis
automatic transmission
type of motor vehicle transmission that automatically changes gear ratio as the vehicle moves
continuously variable transmission
automatic transmission that can change seamlessly through a continuous range of effective gear ratios
chain drive
way of transmitting mechanical power
manual transmission
motor vehicle manual gearbox; stick shift
torque converter
fluid coupling that transfers rotating power from a prime mover to a rotating driven load
constant-velocity joint
mechanical joint to transmit power through a variable angle, at constant rotational speed
fluid coupling
a hydrodynamic or 'hydrokinetic' device used to transmit rotating mechanical power
gear stick
lever for shifting gears manually
freewheel
thumb|Freewheel mechanism
thumb|right|Ratchet (device)|Ratcheting freewheel mechanism (van Anden, 1869)
diesel-electric transmission
propulsion system for vehicles
dual-clutch transmission
type of automatic transmission or automated automotive transmission
hydraulic drive system
drive or transmission system that uses pressurized hydraulic fluid to power hydraulic machinery
semi-automatic transmission
type of automobile transmission that combines manual transmission and automatic transmission
transaxle
thumb|Csonka (automobile)|Csonka transaxle from 1908
thumb|Drawing of the "Alfa Transaxle" layout, with gearbox mounted in block at the rear differential; also [[inboard brakes to reduce unsprung mass]]
A transaxle is single mechanical device which combines the functions of an automobile's transmission, axle, and differential into one integrated assembly. It can be produced in both manual and automatic versions.
electrohydraulic manual transmission
automated manual transmission technology
Hybrid Synergy Drive
hybrid car drive train manufactured by Toyota Motor Corporation

Torsen
thumb|250px|Torsen differential from an Audi quattro
Torsen Torque-Sensing (full name Torsen traction) is a type of differential used in automobiles.
portal axle
off-road vehicle suspension and drive technology with gearboxes built onto each hub
sequential manual transmission
type of non-synchronous manual transmission which restricts gear selection to either the next or previous gear in a successive order

Variomatic
thumb|right|Belt and pulleys of a Van Doorne transmission|alt=A pair of conical pulleys, with a flat belt running between them. The lower pulley is formed from two separate movable cones. In the current configuration, the cones have been moved apart so the belt "falls" into space between them. By moving the cones closer, the belt is forced to ride higher on the sides of the cones, changing the pulley ratio.
thumb|right|Variomatic transmission and rear axle. The larger green drums on the left contain the vacuum mechanism that controls the variable pulleys. The rear wheels are driven by separate
overdrive
operation of an automobile cruising at sustained speed with reduced engine revolutions
Friction drive
mechanical power transmission by friction between components
limited-slip differential
type of differential that allows its two output shafts to rotate at different speeds but limits the maximum difference between the two shafts
locking differential
forcing two transaxial wheels to spin together
Preselector gearbox
type of manual transmission
Saxomat
thumb|262px|Schematic view of the Saxomat automatic clutch control valves unit:
1 – solenoid,
2 – solenoid valve,
3 – vacuum check valve,
4 – pressure reducing valve,
5 – vacuum regulator valve,
A – vacuum chamber,
B – intermediate chamber,
C – atmosphere chamber.
The solenoid valve is shown activated, the clutch is fully depressed.
giubo
thumb|A driveshaft coupling. Note the split damage beginning to appear, likely due to the large axial displacement.
thumb|A giubo
dual mass flywheel
flywheel that consists of two lighter flywheels connected by a damping mechanism
manumatic
The modern usage of the automotive term manumatic denotes an automatic transmission that allows the driver to select a specific gear, typically using paddle-shifters, steering wheel-mounted push-buttons, or "+" and "-" controls on the gear selector.
Cone clutch
Type of clutch
torque vectoring
type of automobile differential where the torque from an electric motor is varied to each drive wheel by an electronic system
Easytronic
Easytronic is the Opel tradename for a type of transaxle-based automated manual transmission, as used in some Opel/Vauxhall cars.
non-synchronous transmission
form of manual transmission
enviolo Continuously Variable Transmission
roller-based continuously variable transmission