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My Real World Hybrid MPG

OldSoulNewMaverick

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Difference in mileage? Or difference in power?
I think it's both. A slight boost in power (or efficiency) that then causes a slight boost in MPG. Note: I'm no engineer, just trying to repeat what I understood in another post.
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Timothyd

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This is my first hybrid vehicle and I’m trying to figure out how to get the most MPG and what options to use (normal vs eco). Flat land around here and most of my errands including work are within 3 miles from home.

Took this photo after an errand. Does it mean I’m getting 34.8 miles overall? Seems low for a short trip and driving like a grandma.

7DEF4780-E9AD-41D3-B564-5A405931C0B6.jpeg
Short trips like that are going to reduce your average. You're running cold the whole way so your engine is running rich and inefficient. Try combining trips to fewer and longer ones.
 

BILLNOROVILLE

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My base XLT Hybrid first tank using real math. 501.5 miles 12.246 gallons = 40.952 mpg.

140 miles was freeway where I usually set cruise at 67-69mph. Rest on 35-45 speed local 2 lane and intown roads. I did use Eco mode just 3 or 4 times to see what throttle response was. stopped pumping gas when nozzle automatic trip shut off.

I'm happy. I figure some will be higher and some lower. Not changing my driving habits as we have had a 2016 Hybrid Prius since new.
 

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fbov

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This engine is not effecient at low speeds
False
Yes. The engine(that is the ice) is not efficient at low speeds.
False
No the engine is the gas engine. IT is not efficient at low speeds.
False... you would have better remained silent. Lots of data disagrees. Here's an example.
Ford Maverick My Real World Hybrid MPG Atkinson Map for Toyota 25L

This is an Atkinson Fill Ratio performance map of a 2.5L ICE. The contours are labeled by fill ratio. Note that the 2.0 contour (50% fill) is a closed ellipse at 1-1.5K RPM. It's getting nearly 40% efficiency at low RPM, much less at higher RPM.

No engine is more efficient. This is the state of the art. And it does so at low RPM. Stop blowing smoke.
What fuel type are you using.
The only important fuel choice is ethanol content.

Ethanol free fuel will give better mileage. but only to those who are getting great mileage already. There's more energy per gallon of fuel, and an efficiently-operated vehicle will be able to access that energy and go farther.

If you can't beat EPA ratings, stick with the cheap E-10 stuff. Ethanol-free won't save you money.
Come spring you will think your the King!
This can't be overstated. Break-in, learning curve and ambient temperature are all going to go the same way.

On a single speed transmission (eCVT) where the transmission is in it's highest gearing from the beginning,
You're thinking of the traction motor, which is directly geared to the wheels and so stays in 1st gear to redline, defining top speed (absent limiters). This is the same as most BEVs.

In this hybrid, ICE has a planetary gear set between it and the wheels. Depending on charging motor speed and direction, the ICE can easily drop into an overdrive gear ratio. In "negative split" mode, the engine is actively slowed to reduce fuel consumption farther. My real-time mileage display maxes out.
That's probably what is happening. Most of my trips are short, less than 3 miles, so I might not be allowing the battery enough time to charge up. Guess I now have an excuse to drive out to the beach (about 100 miles away) more often! lol
DIng, ding, ding! Short trips from a cold start will kill mileage.

I have a pic of a 10 mile trip at 150 mpg... nearly all downhill from a warm start. Hills matter, wind matters, speed matters, but most of all, temperature matters. Come Spring....
 

STARCOMMTREY1

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False

False

False... you would have better remained silent. Lots of data disagrees. Here's an example.
Atkinson Map for Toyota 25L.jpg

This is an Atkinson Fill Ratio performance map of a 2.5L ICE. The contours are labeled by fill ratio. Note that the 2.0 contour (50% fill) is a closed ellipse at 1-1.5K RPM. It's getting nearly 40% efficiency at low RPM, much less at higher RPM.

No engine is more efficient. This is the state of the art. And it does so at low RPM. Stop blowing smoke.
Congrats. You know more than the fuel gauge on my truck. Also the Atkinson does not provide great torque at the low end. Thats why they are paired to hybrids because the electric motor picks that up. So at LOW speeds on engine only the Atkinson has poor fuel effeciency.
https://www.torque.com.sg/features/what-is-atkinson-cycle-engine-benefits/
https://www.caranddriver.com/news/a...n-combustion-cycle-and-what-are-its-benefits/
https://news.pickuptrucks.com/2019/02/engine-deep-dive-toyota-tacomas-atkinson-cycle-v-6.html
https://www.theglobeandmail.com/glo...uses-the-atkinson-cycle-engine/article623560/

There are some just with a quick search. It is no argument that the Atkinson suffers from low torque issues at low speed which means INEFFICIENT. Maybe YOU should not have spoken.
 

clavicus

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Congrats. You know more than the fuel gauge on my truck. Also the Atkinson does not provide great torque at the low end. Thats why they are paired to hybrids because the electric motor picks that up. So at LOW speeds on engine only the Atkinson has poor fuel effeciency.
https://www.torque.com.sg/features/what-is-atkinson-cycle-engine-benefits/
https://www.caranddriver.com/news/a...n-combustion-cycle-and-what-are-its-benefits/
https://news.pickuptrucks.com/2019/02/engine-deep-dive-toyota-tacomas-atkinson-cycle-v-6.html
https://www.theglobeandmail.com/glo...uses-the-atkinson-cycle-engine/article623560/

There are some just with a quick search. It is no argument that the Atkinson suffers from low torque issues at low speed which means INEFFICIENT. Maybe YOU should not have spoken.
Here’s my understanding, and maybe the missing puzzle piece in this exchange is that at low speeds the atkinson is mainly acting as a source of electricity generation to give power (essentially directly) to the traction motor since the HVB can only provide a portion of the total kw capacity that the traction motor can use for strong acceleration, or it may have low SOC; and the ICE is not so much applying energy to direct drive torque at these low speeds. Above a certain speed, this is no longer as efficient as just applying ICE energy more directly to the wheels.

Forgive me if I missed this being covered already and butting into this for no reason lol
 
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STARCOMMTREY1

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Here’s my understanding, and maybe the missing puzzle piece in this exchange is that at low speeds the atkinson is mainly acting as a source of electricity generation to give power to the traction motor, and not so much to direct drive torque? Above a certain speed this is no longer as efficient as just applying ICE energy more directly to the wheels?
Of the electric motor is not running due to low battery the oce is driving everything. It is just not good at low speed.
 

stoptothink

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In the winter the ice runs more so the heat works so gas mileage will be less in the winter
I have no idea what this is supposed to be saying. Winter mileage is lower due to increased drag due to higher density of cold air, higher rolling resistance, increased viscosity of various fluids, winter gas blends, etc.
 
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clavicus

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Of the electric motor is not running due to low battery the oce is driving everything. It is just not good at low speed.
But do you get my point, the ICE may be working, but it’s not always “driving” the wheels directly, and is instead at low speeds directly applying electricity to the traction motor? The HVB gets it’s energy from the ICE too, the traction motor is getting electricity directly from the ICE or through a buffer (the HVB). So the ICE torque argument is less relevant at low speeds because it’s just being a part of a generator. It’s gonna be the same 40% thermal efficiency at 1500 to 3400 rpm or so, does it matter if this RPM range is happening at 0 mph or 30 mph?

My logic may be flawed I’m still learning about mechanical things.
 
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Maverick2023

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Here’s the real mpg of the hybrid about 85% highway normal driving
2F67A418-062D-4249-957A-44BCC40EC0FD.jpeg
can someone explain the read outs? Am I reading this right? The car has 422 miles driven with 118 miles left to go for a combined mileage of 540?
 

STARCOMMTREY1

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But do you get my point, the ICE may be working, but it’s not always “driving” the wheels directly, and is instead at low speeds directly applying electricity to the traction motor? The HVB gets it’s energy from the ICE too, the traction motor is getting electricity directly from the ICE or through a buffer (the HVB). So the ICE torque argument is less relevant at low speeds because it’s just being a part of a generator. It’s gonna be the same 40% efficiency at 1500 to 3400 rpm or so, does it matter if this RPM is happening at 0 mph or 30 mph?

My logic may be flawed I’m still learning about mechanical things.
It's still revving trying to drive the truck.
 

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Well lets look at Toyota's 1.3 NR engine for a comparison of torque since they made it in Atkinson (1NR-FKR) and traditional (1NR-FE).
Ford Maverick My Real World Hybrid MPG 6a00d8341c4fbe53ef01a3fd21e7ea970b-800wi


As we can see at the Atkinson losses 10Nm at 1200 rpm but once it hits 2000 rpm the values are pretty much dead on. So is this enough to consider an Atkinson suffers low torque on the low end? I think that with data provided there is still significant torque at the low end.
 

Cubican

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can someone explain the read outs? Am I reading this right? The car has 422 miles driven with 118 miles left to go for a combined mileage of 540?
Correct I’m getting around 550 to 590 per tank full 13 gal average
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