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Driving continuously in "L" mode?
- Thread starter FiremarshalBill49
- Start date
- Watchers 7
- First Name
- James
- Joined
- Jul 14, 2023
- Threads
- 7
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- 163
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- 179
- Location
- Hottrnhell Texas
- Vehicle(s)
- 23 Hybrid XLT Cactus Grey, 23 Hybrid XLT Alto Blue
- Engine
- 2.5L Hybrid
Agreed, I only use “L” in stop and go traffic, but unless traffic is heavy the Slippery mode is more efficient. The eCVT is safe to drive in L mode even at highway speeds (as described/discussed by Johnny’s Car Care and Ford Video Guy…..
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- #33
It makes sounds and changes RPM that simulates shifting gears. But we all promise you, it's not. The gears are fixed in ratio and permanently in mesh 100% of the time.
As the engine RPM goes down, generator speed goes up in proportion. Always. And vice-versa.
It is true that the gears are fixed and do not "change gears" but the output ratio is not fixed.
The output ratio is infinitely variable (within limits). Controlled by one of the motor/generators through the planetary gear set in the transmission.
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- Banned
- #36
What you said is correct and what I said said was correct because it's different things.
Traction motor to wheel speed is FIXED.
I wrote it down elsewhere in these boards. Traction motor is always 250 rpm per 1 MPH with stock tires.
When the engine is off, (EV mode) the generator and traction motor rotation is fixed. Always 1:1 in equal and opposite directions, so both are 250 rpm per MPH.
When the engine is running and the wheels are stationary, the traction motor is stationary and the engine and generator ratio is fixed; in equal and opposite directions (since the engine can't spin backwards, you know the generator is.). I forget the ratio, but also written here somewhere.
You only get variable ratios when 3 things are spinning at the same time.
- Banned
- #38
Except he's WRONG about half the stuff he says in the video. About 50% correct.
So I don't really recommend this guy's videos.
Theoretically you could use it to come down in speed instead of your brakes to extend brake life. But life others have said maybe disable it when you're going at any decent speed
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- Banned
- #41
If you look at the power needle everyone has, the brake and "L" regen the exact same wattage into the battery.
The brake pedal is NOT using friction pads so long as the needle does not hit 100%. (So use your foot but keep the needle a little above horizontal.)
Brake pedal will activate your brake lamps.
L will NOT activate your brake lamps.
"L" stands for lazy.
Beware, if you use L continuously it WILL heat up your battery, possibly putting more thermal stress on the battery than using more gentle braking.
The brake pedal is NOT using friction pads so long as the needle does not hit 100%. (So use your foot but keep the needle a little above horizontal.)
Brake pedal will activate your brake lamps.
L will NOT activate your brake lamps.
"L" stands for lazy.
Beware, if you use L continuously it WILL heat up your battery, possibly putting more thermal stress on the battery than using more gentle braking.
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- #42
It's not going to destroy your truck.
It's just not ideal to keep it in L all the time.
It's just not ideal to keep it in L all the time.
L is no different than running it in Tow/Haul except it doesn't force the engine to run anytime not stopped. Full regen braking any time the throttle isn't pressed.If you look at the power needle everyone has, the brake and "L" regen the exact same wattage into the battery.
The brake pedal is NOT using friction pads so long as the needle does not hit 100%. (So use your foot but keep the needle a little above horizontal.)
Brake pedal will activate your brake lamps.
L will NOT activate your brake lamps.
"L" stands for lazy.
Beware, if you use L continuously it WILL heat up your battery, possibly putting more thermal stress on the battery than using more gentle braking.
L does not hurt your engine/transmission/tires/brakes/etc is any way. Just changes how the computer receives and supplies power to and from the battery.
In the hybrid, I have normal/tow-haul/slippery/eco/sport modes.
Normal is 'normal'. Eco is higher regen, and lower top-end throttle and a softer throttle response. Slippery is like eco, but with slower regen response to avoid slipping tires on wet/icy pavement. Again, low top end throttle to avoid spin-out and soft throttle response in general. It's one reason many claim slippery gives them better mpg.
Sport gives you higher throttle top-end when you gun it, and tighter throttle response to pedal. It also has far less regen because in sport you are expecting to 'coast' more when you let off throttle and not regen braking by default. Tow/haul is like sport in that you get higher top-end throttle, but with near 100% regen braking when the pedal is released. Also, the computer runs the engine anytime the vehicle is in motion.
And lastly, is low. Like tow/haul but without the auto-running engine in motion. 100% regen braking whenever the pedal is released. Strong response to the throttle and a pretty high top-end for the throttle. So you can really punch it and go. As you mentioned above, regen braking doesn't apply the brake lights. Only the sensor on the brake pedal does. So L may stop the vehicle but you're not tell the people behind you.
And lastly, except emergency braking OR the last few MPH before coming to a full stop, your mechanical brakes never activate in the hybrid. If you never go beyond the green block on the Lariat (not sure what the xl/xlt looks like), you're just using the transmission's regen motor to slow you down.
Please understand that in all modes, full throttle is the same. This is verifiable.
You are making assumptions here from your observations and, while some of them are correct, many are not.
one thing I noticed this past winter is that I was able to spend more time in EV mode while using L when I'd have to drive in snow vs using D. Going up my driveway, I'd mostly be able to stay in Electric, but any wheelspin and it's all over, the engines going to be coming on. 15k miles in, I still really like trying to maximize the hybrid system.
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