Comment Re:Toyota Hybrids (Score 1) 362
What on earth are you going on about? Some random marketing wank?
Toyota hybrids (and basically ALL hybrids by all companies today) are ALL built on the same patent from 1980s (or early 1990s, IIRC). The patent features an AC-DC converter, two motor generators and and ICE engine with a planetary gearbox acting as a differential between the three. MG1 is on the sun of a planetary gear set, planets spin freely around their axes while they are connected to ICE, and MG2 is connected to outer orbit. Outer orbit is also connected to the wheels.
Literally every hybrid on the market is built off this patent (exception being range extended BEVs sometimes called hybrids, in those you have a gasoline/diesel generator completely disconnected from the drive train simply spinning an inverter to charge the battery).
Primary changes between Toyota's implementation's generations usually involved incremental minor improvements. Things like specifics of the connection from orbit to wheels, extra planetary reduction gear between MG2 and wheels, etc. For example even the gen 5 (IIRC) PHEV variants just increase the power of MG2 so you can reasonably drive in EV mode at higher speeds. They may also have added a clutch between MG2/wheels and orbital output for marginally more efficient EV mode. Never looked into it in more detail, but I can see this being another step if you want long term EV mode, which is what PHEVs are built around.
For all wheel drive, the patent mentions fully drive train disconnected MGR (motor generator rear), which is ran off the battery only. Still works this way in most hybrids, though this is one point of differentiation as some European hybrids have added weird drive shaft implementations for this. Some of them resulted in hilarious lack of reliability.