The Volt, like the Prius, contains
a planetary gear system in which power from the ICE is coupled to the wheels.
Not exact matches
This is called the
planetary gear and clutch
system and it is very difficult to conceptualize.
Compared to the previous
system it now uses a
planetary gear differential that can transfer almost twice the torque between the rear wheels.
Planetary gear set can vary the distribution of power between the gasoline engine and the electric drive
system or both, depending on driving conditions
GM's base FWD 2 - mode
system incorporates two electric motors, two
planetary gear sets and a
system of four hydraulically - applied wet - plate range clutches to deliver two continuously variable speed - ratio ranges (modes) and four forward fixed
gear ratios.
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.
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.
A further example of the technology spearhead role is an all - new double electric motor
system driving both rear wheels, connected together by
planetary gears.
Additional components that help make the Prius more efficient include an active grille shutter, an exhaust heat recirculation
system, and a replacement of the previous
planetary gear arrangement with parallel
gears to help prevent mechanical losses.
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.
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.
Two
planetary gear units are used in the
system.
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.
Chevrolet claims that thanks to the Malibu's two - mode
system (basically two
planetary gear sets switched between via a clutch), they're able to have the car performing well both around town and on the highway, by metering - out how fast the gas engine spins.
Conventional torque vectoring
systems use a set of
planetary gears either side of the differential to achieve only very low levels of over-speeding.
Polestar's test drivers focused specifically on Polestar 1's torque vectoring
system, which is enabled by two rear electric motors with individual
planetary gear sets.
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..
The
system also includes a set of speed - multiplication
planetary gears for each drive shaft.
[1] Instead of a
planetary or bevel
geared center differential, the
system uses a variable intelligent locking center multi-disc differential.
The tests evaluated the Polestar 1's torque vectoring
system, which uses two rear electric motors that feature individual
planetary gear sets.