We recently worked with some commercial vehicle makers on electrification of trucks. So I did a bit of research on Hino's hybrid truck technology. They are of the P2 type, which suits utility applications much better than PS. PS are known to be weak in continuous high loads such as towing due to losses in the electrical path way (ICE-MG1-MG2-wheel). P2 can just freewheel the MG when it doesn't need boost/regen and let the mechanical pathway do all the heavy lifting.
Now I am wondering if Toyota's hybrid system will be P2 for utility vehicles. The problem is that they didn't show such a system on their TNGA powertrain road map. We know that Toyota is open to use any type of hybrid technology as long as they make sense. For example they will license P1 mild-hybrid from Suzuki for low-cost applications. There's not a lot of extra cost to develop a light-duty P2 since they just need to scale down the Hino system.
And the better part is this will also work very well for performance applications (aka THS-R). The clutch in the hybrid system is electronically operated, making it a manual sequential transmission.
