Not exact matches
Lifting off that pedal shifts the
planetary transmission from low to high
gear.
Automatic
transmission uses a torque converter and
planetary gears, while manual
transmission uses a clutch and a
gear box.
There is a reason they are called automatic, let the
transmission shift on its own, yes manually downshifting an automatic causes additional wear on the
planetary gears.
Why then do automatic
transmissions use torque converters and
planetary gears if they're less efficient?
Transmission / transaxle case and all internally lubricated parts including ring and pinion gears; oil pump, cover, gears, housing and vanes; torque converter; valve body (s); throttle valve; valve pack; governor, gear and cover; parking gear and pawl; roll pins; sprags; sprockets; chain; springs; stator and shaft; pressure regulator valve; pressure switches; solenoids; bands; automatic transmission / transaxle clutch, drums, pistons and steel plates; planetary and sun gears; servos and rings; blockers; synchronizer hubs and keys; bearings; bushings; supports and shafts; control rings; yoke; extension housing; speedometer drive gears; accumulators and rings; adjusters; all internal fasteners, nuts and bolts; shift cover and forks; separate bell housing; transfer case and all internal parts contained within the transfer case; seals
Transmission / transaxle case and all internally lubricated parts including ring and pinion
gears; oil pump, cover,
gears, housing and vanes; torque converter; valve body (s); throttle valve; valve pack; governor,
gear and cover; parking
gear and pawl; roll pins; sprags; sprockets; chain; springs; stator and shaft; pressure regulator valve; pressure switches; solenoids; bands; automatic
transmission / transaxle clutch, drums, pistons and steel plates; planetary and sun gears; servos and rings; blockers; synchronizer hubs and keys; bearings; bushings; supports and shafts; control rings; yoke; extension housing; speedometer drive gears; accumulators and rings; adjusters; all internal fasteners, nuts and bolts; shift cover and forks; separate bell housing; transfer case and all internal parts contained within the transfer case; seals
transmission / transaxle clutch, drums, pistons and steel plates;
planetary and sun
gears; servos and rings; blockers; synchronizer hubs and keys; bearings; bushings; supports and shafts; control rings; yoke; extension housing; speedometer drive
gears; accumulators and rings; adjusters; all internal fasteners, nuts and bolts; shift cover and forks; separate bell housing; transfer case and all internal parts contained within the transfer case; seals and gaskets.
While the sun
gear spins, the
planetary gears move around it, either around the ring
gear or locked into it depending on the
gear the
transmission is in.
Instead of using one or more
planetary gear sets like a traditional
transmission, a CVT uses pulleys and steel belts to provide an infinite number of «
gear ratios».
The
transmission houses the main shaft,
planetary gears, and the various collars that engage and disengage according to the
gear desired.
To cope with the additional power and torque, the
planetary gear set of the ZF
transmission is also strengthened.
The basis of the new ZF automatic
transmission generation is a new
transmission concept featuring four
planetary gear sets and five shift elements.
The ZF 8 - speed
transmission is based on an innovative
gear set design with four
planetary gear sets and five shift elements designed to significantly reduce internal drag losses, while the modern torsional damper systems in the torque converter improve fuel economy and reduce CO2 emissions.
As in other hybrid models, the Lexus Hybrid Drive's electric motor, generator, power - split
planetary gear mechanism and motor - speed reduction
gearing are all housed in one lightweight, highly compact
transmission housing.
Since Powershift, unlike a conventional automatic
transmission, does not need a torque converter,
planetary gears or multiple wet clutches, there is also none of the added torque losses that these features bring.
The dual - clutch
transmission is an automatic
transmission which utilizes dual launch and shift clutches with a manual
transmission style lay - shaft
gear arrangement, instead of a conventional torque converter and
planetary gears.
Depending which
planetary gear sets are connected in series, blocked or separated, multiplying the part ratios produces the overall ratio for the relevant
transmission gear.
The former plays the role of a starter and can charge the battery pack or power other electric motors as needed while the latter distributes the power to the drive wheels via a
planetary gear - type continuously variable
transmission.
The
transmission is based on an innovative
gear set design with four
planetary gear sets and five shift elements designed to significantly reduce internal drag losses, while the modern torsional damper systems in the torque converter improve fuel economy and reduce CO2 emissions.
If you receive customer reports of Mercedes - Benz vehicles equipped with the 722.9 (7G - Tronic)
transmission being in limp home mode (intermittently or permanently) with fault code (s) 0741, 0893, 0894, 2502, 2504, 2505, 2511, 2711, 2783 stored in the
transmission control module as well as particulate in the
transmission oil pan (see photo), the cause may be related to the torque converter lock - up clutch or the rear
planetary gear set.
Lexus explains: «The new system is based on the electronically controlled
planetary continuously variable
transmission of Lexus Hybrid Synergy Drive coupled to an all - new four - speed automatic
gear set at the output stage.
The
transmission is made up of two 60 - kilowatt electric motors, three
planetary gearsets and four fixed
gears that use the same space as GM's six - speed automatic
transmission.
Power from the gas engine and front electric drive motor (MG2) is distributed to the drive wheels via a
planetary gear - type continuously variable
transmission, which eliminates specific
gear ratios.
Its
transmission was a
planetary gear type billed as «three speed».
PowerShift
transmissions are based on efficient manual
transmission technology, eliminating the weight and complexity of a torque converter,
planetary gears and the fluid pumps employed in traditional automatics.
The Jeep / ZF 9 - speed
transmission has four
planetary gear sets rather than the three found in most current automatics.
Due to the first direct control system in a
planetary automatic
transmission with nine
gears, it has also been possible to significantly increase hydraulic efficiency within the
transmission.
Instead of the standard bevel
gears used in differential
transmissions, the engineers developed a spur
gear differential in which additional torque can be applied from outside via a superimposed
planetary gearbox.
A
planetary gear set allows the
transmission to shift between forward and reverse directions with the operation of a multi-plate clutch, with plates that have a 10 % increase in surface friction.
Transmission / Transaxle case and all internally lubricated parts including ring and pinion gears, oil pump, cover, gears, housing and vanes, torque converter, valve body (s), throttle valve, valve pack, governor, gear and cover, parking gear and valve, roll pins, sprags, sprockets, chain, springs, stator and shaft, pressure regulator valve; pressure switches, solenoids, banks, automatic transmission / transaxle, clutch, drums, pistons and steel plates, planetary and sun gears, servos and rings, blockers, synchronizer hubs and keys, bearings, bushings, supports and shafts; control rings; yoke; extension housing; speedometer, drive gears; accumulators and rings, adjusters, shift cover and forks; separate b
Transmission / Transaxle case and all internally lubricated parts including ring and pinion
gears, oil pump, cover,
gears, housing and vanes, torque converter, valve body (s), throttle valve, valve pack, governor,
gear and cover, parking
gear and valve, roll pins, sprags, sprockets, chain, springs, stator and shaft, pressure regulator valve; pressure switches, solenoids, banks, automatic
transmission / transaxle, clutch, drums, pistons and steel plates, planetary and sun gears, servos and rings, blockers, synchronizer hubs and keys, bearings, bushings, supports and shafts; control rings; yoke; extension housing; speedometer, drive gears; accumulators and rings, adjusters, shift cover and forks; separate b
transmission / transaxle, clutch, drums, pistons and steel plates,
planetary and sun
gears, servos and rings, blockers, synchronizer hubs and keys, bearings, bushings, supports and shafts; control rings; yoke; extension housing; speedometer, drive
gears; accumulators and rings, adjusters, shift cover and forks; separate bell housing.
To cope with the additional power and torque, the
planetary gear set of the six - speed ZF
transmission is also strengthened.
Cadillac feeds that power through GM's special Electric Variable
Transmission, which uses two electric motors to move three
planetary gears that have an infinite ratio of synchronous shifting.
Issues that are cover in a certified pre-owned vehicle include,
transmission / transaxle case and all internally lubricated parts including ring and pinion
gears; oil pump, cover,
gears, housing and vanes; torque converter; valve body (s); throttle valve; valve pack; governor,
gear and cover; parking
gear and pawl; roll pins; sprags; sprockets; chain; springs; stator and shaft; pressure regulator valve; pressure switches; solenoids; bands; automatic
transmission / transaxle clutch, drums, pistons and steel plates;
planetary and sun
gears; servos and rings; blockers; synchronizer hubs and keys; bearings; blessings; supports and shafts; control rings; yoke; extension housing; speedometer drive
gears; accumulators and rings; adjusters; all internal fasteners, nuts and bolts; shift cover and forks; separate bell housing; transfer case and all internal parts contained within the transfer case; seals and gaskets.
Vehicle: 2001 Dodge Durango Owner: Steve Maxfield, Kanosh, Utah Engine: 5.7 L Hemi V - 8
Transmission: Stock five - speed automatic (four
gears plus overdrive
planetary) Transfer case: Stock Powerwagon Front axle: Powerwagon AAM 9.25 with 4.56:1
gears and electric lockers Rear axle: Powerwagon AAM 10.5 with 4.56:1
gears and electric lockers Front suspension: Stock Powerwagon five - link welded onto Durango frame, including coil buckets and control arm mounts, 12 - inch - stroke King 2.0 air shocks Rear suspension: Stock Durango leaf spring with spring - over swap, 12 - inch - stroke King 2.0 air shocks Steering: Hydraulic - assist steering ram fed from ported Dodge steering box Tires / wheels: 42 - inch Pit Bull Rockers on 16 1/2 - inch H1 HUMVEE beadlocks Protection: Full belly skidplates made out of 3 / 16 - inch steel, full 2 - inch, 0.120 - wall DOM exoskeleton, custom bumpers, and tire carrier integrated into exoskeleton Other: Warn winch, bumper - mounted LED lightbar, roof - mounted LED lightbar, rock cameras connected to onboard monitor
A
planetary gear set transmits the blended output to an electronically controlled continuously variable
transmission (CVT) that directs the power to the front wheels.
Internally, the
transmission has four
planetary gear sets, two of which are nested for economical packaging.
The two power sources are joined by a
planetary gear set that transmits the blended torque to an electronically controlled continuously variable
transmission (eCVT) and onward to the front wheels.
Not that a tachometer does any good in the CT 200h, as the car's
transmission, a
planetary gear set, gives the driver no shifting control.
Borrowing a trick from the performance - oriented LC 500h, the hybrid LS uses a unique
transmission that combines four fixed
gears with a
planetary gearset, the latter piece common to all Toyota and Lexus hybrids from the first Prius.
The place for gearheads, ampheads, and anybody else who wants to discuss the finer points of battery technology, regenerative braking, continuously variable
transmissions,
planetary gear sets, computer control systems, etc..
Parallel
gears replace the
planetary reduction
gears in the outgoing
transmission.
Instead, a long driveshaft connects the independent rear axle to the transverse
transmission and «low range» is achieved through
planetary gears at the axles, similar to the Cherokee.
The
transmission is a complex mess of
planetary gears and clutches with multiple variable and fixed
gear ratios, but in layman's terms, it basically acts like a CVT.
The gasoline engine works in tandem with a two - motor, continuously variable
planetary -
gear transmission that uses one electric motor to provide traction power to the wheels and one motor to change the
transmission's modes.
The motor / generators work with the
planetary gearsets, so the EVT is capable of an infinite range of
gear ratios just like a continuously variable
transmission.
Fully Automatic Gearbox — the Automatic
transmission is essentially a torque convertor with a
planetary gear - train that enables smooth and precise
gear shifts.
The world's first internal tooth shaving process offers enhanced
planetary ring
gear precision, minimising
transmission noise.
The
planetary gearset simultaneously fulfills three roles: as a power split device between the generator and the front wheels, as a reduction
gear for the electric motor and, when both work together, as an electronically controlled continuously variable
transmission (CVT).