Sentences with phrase «planetary gears in»

The gear ratio is determined by the number of teeth on the smaller, planetary gears in ratio to the number of teeth on the larger, sun gear.

Not exact matches

Dual Clutch and Constantly Variable trannies don't operate like regular automatic trannies in that they don't (to my knowledge) operate by redirecting tranny fluid to lock and unlock planetary carriers; they don't even have planetary gears.

DCTs are more efficient because their helical gears (in place of a conventional automatic's planetary gears) create lower hydraulic and friction losses.

In turn, those determine what gear ratio should be engaged and the planetary gearset can then be configured to the right gear combination.

Uses an electronically controlled planetary gear set that includes the traction motor and power management electronics in one compact assembly

The planetary gearset is what's responsible for changing gear ratios, and it consists of a sun gear surrounded by smaller planet gears carried by a planet carrier enclosed in a ring gear.

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.

«We have had a lot of focus on the drive train testing lately with many verification tests around the ERAD (Electric Rear Axle Drive), the sub frame with built - in double electric motors and planetary gear shift.

To engage the low gear range, Toyota opens the conventional planetary gearset's brake 1 and locks brake 2, resulting in a reduction gear ratio of 3.900.

In the engine mode, again, this planetary gear CVT will also play its magic.

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.

With two pure mechanical gear points, infinitely variable ratio in between, start - stop, regenerative braking, pure electrical mode, electric power assist, 100 % towing capability — the hybrid one seems to be better use of quite expensive planetary mechanics.

Thanks to the double electric rear axle's planetary gears, torque vectoring features for the first time, separating the power from each of the electric rear motors to drive the car through corners, rather than convention traction control systems that brake the inner rear wheel, slowing the car in bends.

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.

I understand planetary gear sets reasonably well and am amazed they can get EIGHT gears ratios in the same package.

As with all Toyota hybrid transaxles introduced from 2006 forward, it utilizes a planetary reduction gear for the traction motor in addition to the planetary gearset that is employed as a power - split device.

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.

In addition to its motor - generator duties, the crucial MG1 adds two functions: One as a starter motor for the gas engine; and two, by regulating the amount of electrical power it generates (which varies its RPM), MG1 controls the output speed of the transaxle through the planetary gear set — without clutches or viscous couplings.

Two planetary gear units are used in the system.

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.

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.

In low range, instead of a two - speed transfer case the torque is multiplied through planetary gears at the front and rear axles.

As a result, components that would normally contribute to the greatest parasitic loss — driveshaft, ring / pinion, input clutch plates, servo - hydraulic pump assembly and planetary gear sets — are all stationary when the vehicle is in front - wheel drive.

With the Sport Hybrid - iDCD, the odd and even axes are positioned in parallel, with a planetary first gear reducing the unit's length.

Unlike the T2 Torsen where the torque split is a nominal 50:50, in the T3 Torsen the torque split, due to the use of the planetary gear set, is an actual asymmetric 40:60 front - rear torque split (i.e., when grip is equal on both front and rear axles, 40 % of torque is sent to the front axle, and 60 % to the rear).

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.

The Torsen T3 centre differential combines a planetary gear set with a Torsen differential in a compact package developed for centre differential installations.

Parallel gears replace the planetary reduction gears in the outgoing transmission.

In Auto mode the new software algorithms allowed the multi-disc clutch pack's friction and clutch discs to slip as needed, simulating a planetary or bevel geared center differential, making a geared differential redundant.

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.

That power flows through a planetary gear set CVT with six «speeds» in sport mode, and on to a second electric motor that drives the rear wheels when needed.

The Volt, like the Prius, contains a planetary gear system in which power from the ICE is coupled to the wheels.