Real world comparison: Eco Mode vs. Sport Mode on Hybrid Maverick (tried to keep short)

[huunvubu]

Some Text

Sorry but I have to ignore you for your disgusting Avatar.

Sponsored

 

[Aza]

Does anyone know how to get the truck to stay in eco mode automatically? Is there a way to default into eco?

Unfortunately no. Default is normal

 

[STARCOMMTREY1]

Does anyone know how to get the truck to stay in eco mode automatically? Is there a way to default into eco?

Looks.line it's normal mode every key cycle

 

[Bushpilot]

Nah, I’m not going to debate really. I’ve been tuning for over a decade now and understand how air / fuel ratios work. Richer doesn’t add speed and probably never will, unless it’s a diesel. The original debate was sport vs eco and there being a power difference, which is certainly not the case. The differences being they hold higher RPMs to hold turbo spool to increase throttle response. In the hybrids case, it’s a belt controlled by a centrifugal force primary clutch pack that spins a secondary. You can manipulate weight and speed at which the primary opens, thus giving the same effect of “holding a gear” and keeping rpms raised. This will also give the illusion of more power because you will again, have better throttle response because of being in the power band of the rpms.

You don't understand the eCVT transmission ... hint, it is not a CVT.

And best power is found rich of stoichiometric. Best economy is found lean of stoichiometric. So changing the mixture does indeed change power, as well as economy, tendency to detonate, etc.

 

[Proflig8tor]

OK - almost everyone here is wrong (how is that for an opening line? ) Just kidding.
STARCOMMTREY1's Chart is spot on. His first post is likely quite accurate and much appreciated.

There are a whole host more variables in a Hybrid powertrain. Stating anything as an absolute truth is invalidated by the software and engine management making a million decisions a second. What I think Sport Mode does is use the electric traction motor almost exclusively to add power and map the 2.5L much closer to it's peak output (higher RPM quicker). I seriously doubt the motor changes its mixture mapping since it shouldn't need to (but it might). The Ford Duratech (and it's Mazda cousin) are optimized across their RPM range for our 87 octane gas.

The most common way to manage heat (stress) on an engine that is capable of harming itself with a high compression ratio is to run well rich of the peak stoichiometric ratio.

These days there are two paths being followed for peak efficiency. Downsizing is the most common. Modern engine management technology and the ability to use exotic materials at a reasonable cost. Ford's EcoBoost is an excellent example of this trend. Just know that when you get on the boost, the thing does what it has to save those pistons and exhaust valves from temperatures similar to a mid-90's F1 engine. It dumps fuel to **cool** the peak exhaust gas temperatures. That's why the EB engines are pretty terribly inefficient on high boost. But when not on boost you have a smaller, lighter, motor that can be run closer to its peak (even considerably lean of peak), gaining back overall efficiency.

Another path is variable displacement. The Atkinson cycle's intake valve remaining open during part of the compression stroke has the effect of making the compression stroke smaller and the power stroke longer. Less energy is used for compression and more energy is realized during the expansion (power) stroke. The tradeoff is that a pure Atkinson cycle engine lacks torque at low RPM. The Maverick hybrid fixes that problem with a high torque electric drive motor. I think the results speak for themselves. The Hybrid is at least 30% more efficient overall, if slightly slower when asked for peak performance.

Both approaches get pretty close to 40% efficiency from the fuel (which is industry-leading) when not doing any high boost or electric drive magic).

The tradeoffs from there are being done by the software and these systems are considering so many variables (like the temperatures in the emissions system, knock sensors, needs for cabin heat, etc... ) that I don't think we can write in absolutes, except; electric is a better way to drive a vehicle if you can deal with the weight of the batteries effectively.

Electric:

1. Very nearly 100% of the energy is used for movement (our hybrid should be around 98.7%) Vehicles that burn stuff dump 85% of their energy overboard in the form of wasted heat (radiator and exhausted heat) ((and note both the attempts to make gas motors more efficient are attempts to capture that wasted energy through a turbocharger or longer expansion stroke))
2. Electric power generation can be closed loop (solar, hydro)
3. Electric power can be generated away from the actual use (no need to carry around an emissions system)
4. Electric drive systems tend to be longer lasting and the moving parts very simple (most electric cars have one gear to a differential - that's the whole drive system)
5. EVs have all the torgue and all the power from 0 RPM

What makes our Hybrids special is not the fuel / air ratio in the motor. The heavy lump is a side show and I'd like to get rid of it entirely, have better weight distribution, more power and storage up front.

When you get your electric truck (not if, but when) you are going to love the power, the money savings (I expect the Lightning to get about 70MPGe while ripping off 0 to 60 in the 4.5 second range) and the lack of maintenance. Probably the first thing you'll notice is the much greater space for your stuff when you are no longer carrying around:

• Motor
• Transmission
• Drive shaft to a transfer case
• Transfer case
• Driveshafts to differentials (the EV motors take about the same volume as the diff)
• Intake System
• Gast tank
• Exhaust and Emissions system
• Radiators to expel waste energy

and when you think about it, not producing all that stuff will eventually make EV's a lot cheaper to build. The Hybrid Maverick is a step on the path of where everything is going.

 

[JEMiculka]

Does anyone know how to get the truck to stay in eco mode automatically? Is there a way to default into eco?

My wife has a 21 Escape and there is no way to change the default setting. She would love to have it stay in Eco Mode. Assuming the Maverick is the same set up, it doesn’t seem possible.

 

[Bobinmi]

I run in ECO mode..

 

[MtcARK]

I have taken to driving my hybrid in Sport mode most of the time as it is much more responsive and combines the torque of the ICE and electric motor over 35 MPHour. I am still averaging nearly 40 MPG in Sport and am fine with that. Also, Sport mode eliminates the weird idiosyncrasies of hybrid shutter and grabbing brakes.

 

[peekaypee]

I have taken to driving my hybrid in Sport mode most of the time as it is much more responsive and combines the torque of the ICE and electric motor over 35 MPHour. I am still averaging nearly 40 MPG in Sport and am fine with that. Also, Sport mode eliminates the weird idiosyncrasies of hybrid shutter and grabbing brakes.

Wow! How do you still get 40mpg in all Sport mode? You must live in an all flat area, while hyper-mile'ng with a strong wind behind pushing you. Ha

 

[Hardening2753]

If we could get two Mav’s side by side, one in sport mode, the other in eco and some 0-60 and flat out drag races that would be awesome. Let’s see what the difference really is!

Lol that is going to go exactly how you think it will go. I would prefer hybrid in sport vs EB in sport racing. I think the EB would still win but more fun

Sponsored