Sentences with phrase «planetary gearset»

Total kinematic content can be described as the number of torque transmitting devices plus the number of planetary gearsets.
They are said to be a little more efficient than automatic transmissions that use planetary gearsets.
Also like the Volt, the CT6 will use a two - motor drive system, but it will add one more planetary gearset (for a total of three) and two more clutches, bringing the total to five.
The transmission, a continuously variable unit relying on a mysterious interaction between planetary gearsets to mix electric and gasoline power, offered a Low range.
Torque is divvied up by a compound planetary gearset; when slip is detected, an electronically controlled clutch increases or reduces the friction between the two ring gears to change the front - to - rear distribution.
This particular Quattro system is new, replacing the previous system's Torsen center differential with a faster - acting, lighter, and more efficient planetary gearset.
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.
The IST is based on an automated manual transmission (AMT) with powersplit planetary gearset configured between the engine and the output shaft.
In addition, the motor (MG2) is linked to the front wheel transaxle by means of a second planetary gearset, thereby making it possible to increase the power density of the motor.
The eight speed ratios are generated using four simple planetary gearsets; two brake clutches; and three rotating clutches.
The new transmission was built around the Ravigneaux planetary gearset of the «X» transmissions.
The transmission houses two 60 - kilowatt (89 horsepower) electric motor / generators along with three different planetary gearsets and four traditional clutches.
Because the A-500 and A-518 were essentially made by adding lockup torque converters and an overdrive planetary gearset to the A-999, gear ratios were not optimal; they were not redesigned to match the torque curve and torque rise of the mated engine.
A new twin planetary gearset allows for versatility in how the engine, motors, battery, and regenerative brakes are optimized to meet different driving demands.
The predominant form of automatic transmission is hydraulically operated; using a fluid coupling or torque converter, and a set of planetary gearsets to provide a range of gear ratios.
Using a planetary gearset and three clutches to connect the two motors and the engine, the Volt powers the wheels in five distinct operating modes.
Drive here is by «e-CVT» - Toyota - and Lexus - speak for the planetary gearset used to seamlessly mix petrol and electric power.
The heart of its many modes is an automatic transmission consisting of one planetary gearset and three electronically controlled, hydraulically activated multiplate clutches.
This system, part of the optional Sport package, electromechanically adds a positive or negative steering angle to the setting chosen by the driver, via a planetary gearset integrated into the steering column.
A clutch locks the ring gear of the planetary gearset for a 7.0:1 speed reduction and torque multiplication ratio.
It's also the latest recipient of the 9G - Tronic nine - speed automatic transmission, which uses four planetary gearsets to create its nine ratios from a more compact form than the old 7 - speed unit.
A nine - speed AMG Speedshift MCT automatic (consisting of a planetary gearset but a wet clutch, rather than a torque converter) is again standard, sporting quicker shift times than previous E63s.
Another surprise, in this day of dual - clutch and racing - style semiautomatic transmissions, is that the GT Sport comes only with a six - speed ZF automatic featuring a conventional torque converter and planetary gearsets.
The planetary gearset is the device that makes this possible in an automatic transmission.
In turn, those determine what gear ratio should be engaged and the planetary gearset can then be configured to the right gear combination.
Among its benefits are compact size and light weight - even compared to the 7 - speed automatic it replaces - and enough ratios from the four planetary gearsets to cover the demands of both performance and economical driving.
All the parts in the planetary gearset can be locked or unlocked to determine the gear ratio.
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.
Compare with GM / DC / BMW two - mode hybrid transmission with three planetary gearsets (one is power - split unit), two brakes, two electric motors (smaller then in Toyota Synergy drive), and no clutches at all.
In a ground - breaking arrangement, four planetary gearsets and five clutch packs are controlled in a way that no more than two of the five clutch packs are freewheeling at any given time.
This shifter controls a planetary gearset, Toyota's transmission that mixes power from engine and electric motor.
Engineers at the Virginia Polytechnic Institute and State University have developed a continuously variable transmission based on a cam and a planetary gearset that might increase fuel efficiency 3 - 5 %.
By comparison, GM's two - mode system uses a combination of engine speeds, motor speeds, and a system of clutches to manipulate the planetary gearsets and provide two variable ranges, as well as a compound split in which the two ranges influence one another.
ZF has designed a new 8 - speed automatic transmission for passenger cars based on a new transmission concept featuring four planetary gearsets and five shift elements.
Five planetary gearsets are used with four stationary clutches and three rotating clutches, saving space compared to freewheeling designs.
And wow, four planetary gearsets, two wet clutches, four brakes.
The intent is continuously adjusting gear ratios through a planetary gearset that more precisely matches engine output with acceleration and fuel economy.
A small flywheel is connected to the planetary gearset.
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 system consists of two multi-disc clutches and two planetary gearsets, one on each side of the rear differential.
The HSD also combines an electric drive and a planetary gearset which performs similarly to a continuously variable transmission.
It features a planetary gearset on the steering shaft (similar to BMW), that varies the steering ratio between 12.0:1 and 18.5:1.
But it's not a CVT, it's a ring and planetary gearset that engages and disengages to create a gear feel.
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.
It has a unique design, with the planetary gearsets positioned on the same axis as the engine crankshaft centerline, making the entire powertrain unit shorter fore - to - aft.
A planetary gearset blends the two power sources and feels for all the world like a CVT (continuously variable transmission) to the Toyota Prius V driver.
The transmission, a planetary gearset that mixes power from the engine and motor to drive the front wheels, works completely seamlessly, so that I never felt different power sources taking over.
It continuously adjusts gear ratios through a planetary gearset that more precisely matches engine output with acceleration and fuel economy.
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