Well, I was amazed anyway, so new to me.
I came into electrification straight from ICE, so no Hybrid or PHEV background. My early test drive was a joke and I never looked back. So I'm learning more as I hear about how this is getting tied to the bill somehow, and many here expressed frustration by this. I followed in posture, then realized I didn't even know the difference between the two systems. The more I read on this, the more I needed to listen.
I really should actually work some today, but I'll share this for any other folks out there who are also coming up to speed. Looking forward to understanding this more, thanks for all the input.
These are links to energy.gov website with some other forms of locomotion off to the right side. In discussion, I suspect when people say "Hybrid" they could actually mean PHEV or either. I did notice how someone qualified it earlier today in their post. Thanks, that person!
Hybrid
PHEV
Greatly appreciate the candor you show here, and the being open to learning. That's what can keep pulling us from the brink of groupthink. Well played,
@SOULPEDL, well played...
That might have been me earlier, distinguishing between hybrid and plug-in hybrid. I often forget how being an engineer and decade+ hybrid owner made me deep dive into a lot of this stuff. Imagination was captured way back in the early aughts...
A plain vanilla (non-PHEV) hybrid, when well made, basically uses the electric motor + battery to keep the gas engine in its most efficient operating regime, allowing you to achieve far better mileage (like Prius) or only slightly better mileage (any GM "2-mode" hybrid, if you remember those). So vanilla "hybrid" has no plug and therefore no external energy source. Therefore by physics (aka First Principles) you could never exceed the thermodynamic efficiency limits of the ICE (roughly 40%) since there is no external power source beyond gasoline - you could just approach those limits much closer than the typical ICE implementation, and (importantly for me and I bet others here) you got a taste of short distances of all-electric operation. Man, I loved those little all-electric stretches. Definitely pushed me further towards EV, which admittedly was already a direction I was pointed in.
Even in the realm of straight hybrid, there is much gas to be saved.
@TN Mtn Man I believe gave a synopsis of the Prius Hybrid Synergy Drive, which is actually a worthy work of art: subtle, rugged, and flexible in many modes of operation. Perhaps similar in some ways to the Octovalve, although I admit dearth of knowledge there.
Since we can't make enough EVs this year or next year, IMHO, throwing a little money to decent hybrids is not a prima facia waste as has been stated here. Devil in the details and all, but God is also in the details
PHEV's opened up a whole new vista for us hybrid owners. [I was such a Prius nerd that I was upset Toyota didn't offer me an easy way to plug in my little 1 kWh vanilla (non-PHEV) hybrid battery so I could always start off with a full charge, minimizing my fuel use.] When they finally started offering PHEVs - larger batteries with EV range measured in miles (not feet) that came with a plug, you could suddenly talk about the "best of both worlds": all electric daily commutes, with overnight charging, and no range anxiety limitation for long trips. From this point of view, PHEV's are a great invention. They stay "great" as long as the price of batteries in a full EV is above a certain point. IMO we may or may not have reached that point today, depending on which EV and which PHEV you are talking about as well as your driving use case. These things matter a lot for cost comparison perspectives as well as GHG calculations.
I have seen a number of folks who love their Prius Primes (that's the PHEV version) and they point with pride to the high percentage of EV use they get out of them and point with pride to their efficient gas mileage when NOT in EV mode, and a number who love their RAV4 Prime (in Toyotaspeak Prime = PHEV version). Each offers a believable commute range (~30 miles Prius, ~50 miles Rav4, Prius Prime has increased EV range over the years) to entice the environmental crowd, and solid gas mileage (hybrid synergy drive improved over regular ICE) for long trips to entice the budget crowd.
And yes, absolutely : long term engineering wise, this "best of both worlds approach" - approaches - the "worst of all worlds" as the weight and complexity of carrying BOTH _interacting_ power trains brings down your efficiency and brings up your cost. But even that is not a total loss: for example, Prius gets by with a much smaller and lighter ICE than it would otherwise need, with it able to run in an Atkinson cycle (less power more efficiency) with the power difference made up by electrics. So there is indeed some engineering "Synergy" between the two systems that can be exploited by PHEVs.
But for some period and some uses (perhaps some right now), they make sense for people AND they are better than straight ICE. And IMO therefore in some cases they are worth incentivizing, again, until we have
far more EV's and
far more charging infrastructure.
(edited for typos)