So does it get e-four or new AWD system? I would guess e-four?
An excellent question. Thus far, the 5th-gen RAV4 is the only TNGA-K platform vehicle confirmed to offer optional AWD. Per the
Toyota USA Newsroom release from its 2018 New York Auto Show world premiere, a trio of AWD systems will be offered on RAV4:
Dynamic Torque Vectoring All-Wheel Drive with Rear Driveline Disconnect.
Standard (and seemingly only available) on AWD-equipped Limited gas and Adventure grade (which is gas-only) models, this is the most sophisticated and handling-oriented of the three systems. It is definitely part of the new 4WD systems announced in conjunction with the new Dynamic Force powertrains.
Dynamic Torque Vectoring All-Wheel Drive with Rear Driveline Disconnect can send 50 percent of engine torque to the rear wheels, plus distribute it to the left or right rear wheel for improved handling. When AWD isn’t required (on long stretches of highway, for example), fuel economy is improved thanks to the Rear Driveline Disconnect system. The disconnection features the world’s first ratchet-type dog clutches on both the front and rear wheel shafts. These clutches stop the driveshaft’s rotations, thus transmitting the driving force to the front wheels when AWD isn’t required, significantly reducing energy loss, improving fuel efficiency, and reducing rotational vibration making for a smoother ride.
Also included is Multi-Terrain Select. Standard on all AWD-equipped gas RAV4 models, Multi-Terrain Select uses a control dial (or buttons) to maximize traction when driving through snow, mud, sand, or rocks.
Still another characteristic is AWD Integrated Management (AIM), which harmonizes engine, transmission, braking, and 4WD systems to offer superb handling and stability regardless of road surface conditions.
Non-Dynamic Torque Vectoring AWD.
Available on core gas grades. It is unclear whether this is the current, older-tech AWD from the current 4th-gen RAV4 or the new AWD described above minus the Dynamic Torque Vectoring functionality. Similarly unclear is whether or not it includes Rear Driveline Disconnect and AIM functionality. It does, however, include Multi-Terrain Select.
E-Four / All-Wheel Drive with Intelligence (AWD-i).
Available on all hybrid grades. The AWD-i nomenclature is used on the 5th-gen RAV4 news release, whereas
the earlier Dynamic Force-related Toyota Global Newsroom release refers to it as E-Four. Both, however, are described in nearly identical words. Total torque to the rear wheels—which are electronically driven—is increased by 30 percent compared to the current generation AWD-i system. By adopting a new control system that optimally distributes torque to the rear wheels based on the driving conditions, the new system offers high off-road performance, handling, and ability.
E-Four/new AWD-i includes AIM functionality but apparently not Multi-Terrain Select.
So what can we expect when the TNGA-K sedans offer AWD? My best guess: Dynamic Torque Vectoring All-Wheel Drive with Rear Driveline Disconnect (minus Multi-Terrain Select) for gas-only models and E-Four/AWD-i for the hybrids.