Hybrid Revs Coasting Down Hill

[Aherpa]

This probably means your battery is 'full' and the regen cannot delivery energy to it so the ICE is used to slow the truck.
When this happens in ours, we pat the dash and tell the truck, "whoa, stop showing off all that muscle. Don't you know there's an engine brake ordinance in force"?

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[Ecorydr]

These 2 pages of posts answer your question - good info to know. And not that long of a read.
It is the eCVT in a sense but for other reasons - but not the clutch and other things you mention.

<removed for incorrect info>

 

[MakinDoForNow]

Yup.... did eventually read up on the eCVT. Apparently it based on a more traditional torque convertor fluid pressure change via a solenoid as apposed to mechanical disengagement. However, it still appears that the gradual solenoid relief and maybe the PCM's ability to keep the engine rpms up from stalling (appears similar to how late model manuals work between shifts in thier case for synchroniser mating) might be the cause of the sudden higher rpms. Maybe more of a programing timing issue between PCM and TCM.

Geeze.... There is no solenoid relief, etc. the gear set stays engaged the polarity if the electric drive motor is reversed making it a generator when the battery cannot Accept all the current the braking is creating the planetary for the ice transfers the load to the ice when the fuel an spark is shut off. The gearset is already synced and operating. Only the direction of the electrons in the field coil is reversed in thousands of a second.

 

[Ecorydr]

Geeze.... There is no solenoid relief, etc. the gear set stays engaged the polarity if the electric drive motor is reversed making it a generator when the battery cannot Accept all the current the braking is creating the planetary for the ice transfers the load to the ice when the fuel an spark is shut off. The gearset is already synced and operating. Only the direction of the electrons in the field coil is reversed in thousands of a second.

Wow missed that one! Thought i looked up the ecvt and apparently didnt catch the "electric" point. My bad.

 

[Glen Baker LLC]

The 2022–2026 Ford Maverick Hybrid uses an electronically controlled continuously variable transmission (eCVT), specifically the H45E transaxle designed by Ford

I know it's a little e.
In the case of our eCVT's. It makes a big difference.

I know it's inevitable. Somebody will say in Sport Mode it feels like the transmission is shifting. That was added artificially by Ford for whatever reason.
Also in Sport Mode the steering feels "sportier" according to Ford.
I call it tighter.

 

[dochawk]

This probably means your battery is 'full' and the regen cannot delivery energy to it so the ICE is used to slow the truck.

Ahh, kind of like how "R" means to reach down by your left foot and flip the valve when the image sputters, to let the Reserve gas flow?

 

[Ryom]

It does nothing for you when going.

I'm not 100% on this... there is definitely a different pedal feel with L selected on my hybrid. I'm not sure if it's just changing the throttle mapping like other drive modes such as ECO do or if it's deeper than that.

Very easy to test as pressing L while driving on a level flat road at a steady speed will result in a noticeable change. I'd wager a blindfolded passenger would be able to tell when the button is pushed by the driver and if you're really feeling froggy, a blindfolder driver if pushed by the passenger.

Ford states they change steering and throttle maps with drive modes. It'd be nice to have a more complete explanation of that.

 

[Mavster Mechanic]

I'm not 100% on this... there is definitely a different pedal feel with L selected on my hybrid. I'm not sure if it's just changing the throttle mapping like other drive modes such as ECO do or if it's deeper than that.

Very easy to test as pressing L while driving on a level flat road at a steady speed will result in a noticeable change. I'd wager a blindfolded passenger would be able to tell when the button is pushed by the driver and if you're really feeling froggy, a blindfolder driver if pushed by the passenger.

Ford states they change steering and throttle maps with drive modes. It'd be nice to have a more complete explanation of that.

It does nothing FOR you pulling.
Not more torque.
Not more "power".
Not more rpms.
No reduction in effective gear ratio.
Not more ability to pull something uphill. In a 2022 hybrid. Going to be the same in 2023 and 2024.

Can't speak about 2025 or 2026 but it's likely the same.

Does that clarify?

 

[Ryom]

Does that clarify?

Not really.

The hybrid does SOMETHING under power because the throttle response changes when you push L and unless my ears deceive me it SOUNDS different too. That's all I'm stating. I don't know WTF it's doing, but there are noticeable differences that aren't just max regen while zero throttle coasting. That's why I wished there was an official source that went into full detail about L on the hybrid, other than the rather terse manual.

https://www.fordservicecontent.com/...ingEnabled=False&userMarket=usa&buildtype=web

Low (L) - Hybrid Electric Vehicle (HEV)
In low (L) your vehicle decelerates more noticeably than in drive (D) when the accelerator pedal is released.
Note: We recommend using this mode for driving on hilly or mountainous roads or when towing a trailer. See Towing a Trailer.

 

[Darryl]

Because if it said "F" everyone and their uncle would be asking why they put an "F" there and would be suggesting they label it "D" like every other car.

"L" is for braking. Slowing. It does nothing for you when going. Back in the original hybrids they appropriately labeled it "B". And people hated it. Got confused by it. So makers switched back to "L" for a simulated low gear. But it's a simulation. To provide braking aid.

The hybrid has no shifting. Period.
The little round thing is just a video game controller. A signal wire.

People dissed the OceanGate sub maker for having a Nintendo style video game controller to run the submarine. Your Maverick is about the same.

Thankfully, we're not trying to drive our Maverick under water . On another note, I like the fact that "low" range is only for extra braking but also allows normal acceleration and highway speeds. It essentially makes it idiot proof if the driver forgets to take it out of low when the extra braking is no longer needed. And it doesn't tremendously affect fuel economy. In fact, some say driving in low range can sometimes improve fuel economy in city traffic with the extra regen. I just found it to be aggravating in the same sense I found one pedal driving aggravating when I was driving an EV at my job. Anyway, I went off on a tangent as usual

 

[Aherpa]

I'm not 100% on this... there is definitely a different pedal feel with L selected on my hybrid. I'm not sure if it's just changing the throttle mapping like other drive modes such as ECO do or if it's deeper than that.

Very easy to test as pressing L while driving on a level flat road at a steady speed will result in a noticeable change. I'd wager a blindfolded passenger would be able to tell when the button is pushed by the driver and if you're really feeling froggy, a blindfolder driver if pushed by the passenger.

Ford states they change steering and throttle maps with drive modes. It'd be nice to have a more complete explanation of that.

On that level road, watch your driving coach meter when you engage "L". The ICE part of the gauge becomes smaller, indicting (to me at least) that the ICE is working less hard and therefore using less gas for the same MPH.

 

[HeyBales]

I'll try to remember to do a couple sessions of logging over same stretch of road.

It'll show % the pedal is pressed down, with resulting motor/engine torque given.
I could try a slow run to attempt EV mode-only with slow increase to same % pedal. Normal & L mode.
And then going a bit quicker and more % pedal used, easily out of EV mode. Same 2 modes.

I already did accel tests but didn't think to include L mode.

 

[pete c]

Hybrid newbie here (about 550 miles, still on first tank!).

I experienced the same thing.

The replies so far seem to imply that coasting down hill has to turn that energy into either stored battery power or spinning the engine. This is not true. You could turn it into increased speed.

IMO, this is something the lawyers pushed for as it is safe.

I hate lawyers.

If I am coasting down hill with no brake applied, it should coast with minimal drag. Let me put that increased speed to good use.

 

[HeyBales]

Hybrid newbie here (about 550 miles, still on first tank!).

I experienced the same thing.

The replies so far seem to imply that coasting down hill has to turn that energy into either stored battery power or spinning the engine. This is not true. You could turn it into increased speed.

IMO, this is something the lawyers pushed for as it is safe.

I hate lawyers.

If I am coasting down hill with no brake applied, it should coast with minimal drag. Let me put that increased speed to good use.

Yep - gotta press the Go pedal just enough to remove any regen, but not in to applying power.
Slippery mode will make this the easiest, since it has the least regen already, and softer Go pedal action to toe that line.

Or shift to Neutral.

 

[dochawk]

If I am coasting down hill with no brake applied, it should coast with minimal drag. Let me put that increased speed to good use.

Just engage Oklahoma Overdrive . . .

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