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Toyota Motor Corporation's L-series of HybridSynergyDrive (HSD) transmissions (not to be confused the 4 and 5 speed manual L-series Toyota transmissions) are hybrid gearboxes containing 2 electric motors, one for driving the wheels and one for controlling the ratio between the engine and the electric drive motor, as well as an optional 2 or 4 speed planetary transmission attached to the end of ...
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This was provided to allow engine braking on downhills or prevent the use of overdrive gears when towing and was typically achieved using positions such as "3", "2", and "1" on the gear selector. An automatic transmission with a manumatic function provides a greater level of control by allowing the driver to request an upshift or downshift at a ...
It consists of 2 pinions that mesh with each other. One of these pinions meshes with the sun gear, the other with the ring gear. As a results, the gearset generates different ratios and the sun gear rotates in the same direction as the ring gear when the planetary gear carrier is stationary. This made it possible to manage 8 speeds with 3 gearsets.
In vehicles equipped with Variable Gear Ratio Steering (VGRS), VDIM also manages steering gear ratios to help the driver maintain control. [10] Initially, the system was only offered on vehicles equipped with Electronically Controlled Brake (ECB), but this is no longer required.
In Generation 1 and Generation 2 HSDs, MG2 is directly connected to the ring gear, that is, a 1:1 ratio, and which offers no torque multiplication, whereas in Generation 3 HSDs, MG2 is connected to the ring gear through a 2.5:1 planetary gear set, [10] and which, consequently, offers a 2.5:1 torque multiplication, this being a primary benefit ...
The L-series (HSD) are Hybrid Synergy Drive transmissions used in Toyota and Lexus hybrids for RWD-based platforms. [4] Models: L110 Crown Hybrid (2008-2012), Lexus GS450h (2007-2020) - combines HSD with a 2-speed Ravigneaux gearset [5] L110F Century (2018-), Lexus LS600h (2008–2017) - same as L110 but AWD variant
Lexus logo. The following is a list of Lexus vehicles, including past and present production models, as well as concept vehicles and limited editions. Model generations are ordered by year of introduction.