[JeffJo]

Remember you get regen braking from the paddles or the brake pedal. It's just two ways of activating the same thing.
The disks don't come into play unless you slow below effective regeneration speed or brake very hard (more than .3G).
The paddles are more convenient in some situations, but they can't do anything the pedal can't do.

While technically true, you can't easily apply maximum regen braking but no friction braking with the pedals like you can with the paddles.

 

[JeffJo]

Have you had to make a 3-point turn in the hybrid yet with traffic bearing down on you? I wonder how that would go. I'm guessing it would take some not inconsiderable adjustment on the driver's part.

Fastest multi-point turn in the known universe (well I don't know how Tesla does it, in theory it could be the same). Left hand on wheel, one finger of right on "R" button, and one finger on "D". (Yes, I know some you don't drive on the right side of the road. You know how to reverse this.)

1. Press "R" or "D", as appropriate. Rotate wheel in desired direction. Accelerate slightly.
2. Press "D" or "R", as appropriate. Rotate wheel in opposite direction.
3. Press "R" or "D", as appropriate. Rotate wheel in original direction.
4. Repeat steps 2 and 3 as necessary.

Notice anything missing? If you stay below about 5 mph, moving your foot isn't necessary. Zero mph is just a point between -1 mph and +1 mph, just like 3 mph is a point between 2 mph and 4 mph. The only reason I say "below 5 mph," is because that is what Tesla says is allowed for this maneuver. I don't know what Honda uses, and I doubt I have ever tried above 2 mph, but it works.

 

[JeffJo]

As a side note, I have a 2 specific uses for the EV only button. When I have to move the car to the driveway from the garage, usually for a car wash. And when I’m at a strip mall and park at one end for one store, then later drive in EV mode to another parking for another store at the other end. Anyone else have practical uses for EV only mode?

Pretty much what you do. The most significant instance where too much gas is used is warming up the car. If you aren't going anywhere, you shouldn't let the engine start.

I live at the bottom of a hill, but then have a 12% slope up the driveway. I use EV to make sure rhe battery is as discharged as possible when I arrive home, especially in winter. Otherwise regen from the downhill part could leave it as high as 70%, and then warming up the next morning can fill it. I also use ir to pull into the garage so the only noise is the angels.

But I do need to reiteratethat Prof. Kelly understands the mechanics of the system better than the methodology. He gets several things wrong about how, and why, the various modes are used.

In many ways this is a better explanation, especially using the whiteboard as a companion to the actual hardware that the Weber State video shows. And I apologize if this

Doesn't come out well, I'm doing ir on a phone poolside on vacation.

 

[JeffJo]

Mr Kilmer is person non-grata here and thus links to his video has been removed.

Why? I think he is the perfect justification for ignoring people who criticize hybrids while refusing to even try to understand how they work.

I always thought he seemed to know what he is talking about, no big deal though thanks for explaining.

If he does, he is deliberately misrepresenting it. If he doesn't, he is the idiot he appears to be.

Best advice is to completely block him

But he is soooo amusing. Especially those glasses that make you wonder what he has been smoking.

I really don't need more evidence than this, which I hope doesn't get removed by TheDarkKnight:

youtu.be/JZ6EKLub0gc

This isn't a Prius. The Prius use(s) Atkinson Cycle engines, which (are) small four-cylinder gas engines that don't have cams in them. It's an old design that kind of failed because they work fine but they don't put out enough horsepower. But since they want the biggest gas mileage they can in the Prius they use an Atkinson motor. But this engine, it's just a conventional Toyota four-cylinder engine it's not an Atkinson cycle. It's a normal engine.

Emphasis added.

For the record, the engines Toyota uses in all of their hybrids are their "normal engines," modified to use the Atkinson cycle. The 1.8L engine in the current Prius is the same 1.8L engine that is in the current Corolla, modified to use the Atkinson Cycle. Which means it uses different cams. It has cams.

Note how Scotty, who claims to be an expert mechanic, says they "don't have cams." I don't know for sure, but they probably have "DOHC" imprinted on them somewhere. It means "Dual Over-Head Cams." But even if they don't, "DOHC" is clearly listed in any spec sheet. And clearly evident to any mechanic who (A) knows what a cam is, (B) has looked at the engine, and (C) isn't lying through his teeth. One has to wonder which of these statements does not apply to Scotty in this video.

To be complete, the 2.5L engine in the car Scotty is pointing to is a modified version of the 2.5L DOHC engine in the same-year gas-only Camry. It is also modified to use the Atkinson Cycle.
+++++
Further explanation:

James Atkinson was an inventor of internal combustion engines. He pioneered the idea that it was more efficient for the expansion stroke to be longer than the compression stroke. But he tried to do it by altering the movement of the piston:

File:Atkinson Engine with Intake.gif - Wikipedia

en.wikipedia.org

This is called the "Atkinson cycle-engine." The point of emphasis is that its mechanical cycle is different than what Otto used, and was quite complicated. The engine failed because that mechanical cycle was unreliable, as you might well imagine.

In modern times, we have better control over the valves. We accomplish what Atkinson wanted by simply closing the intake valves late in the cycle. This is called an "Atkinson-cycle engine." The point of emphasis here is that the power cycle it implements is what Atkinson wanted, rather than the mechanical cycle.

The effect of using the Atkinson-cycle is to (A) reduce power, because less fuel is used in each cycle, (B) make the range of rpms where it works well narrower, but (C) increase efficiency at certain levels of power. This is perfect for a hybrid, since (A) the electric motor can add power back in, (B) the car's speed is not tied as directly to rpms, and (C) it has a battery to buffer the power when the needs of the car differ from the optimum power.