Regen Effectiveness

[GPSMan]

I started in EV on level ground.

Accelerated 0-33 mph in EV.
Gently braked back down to 3 mph.

HV Battery started at 54%, drained to 46%, regenerated back up to 49%. Recovered 37.5%.
Distance traveled, about 0.3 mile.

Accelerated 0-25 mph in EV.
Gently braked back down to 3 mph.

HV Battery started at 61%, drained to 57%, regenerated back up to 59%. Recovered roughly half.
Distance traveled: about 0.2 mile.

Estimates with maybe 10% error. I don't have a sophisticated data logger. Just watching OBDII data and the values were constantly changing but that gives you a close idea of what is going on.

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[GPSMan]

Not sure where to post this, so posting it here:

 

[CuriousGary]

I started in EV on level ground.

Accelerated 0-33 mph in EV.
Gently braked back down to 3 mph.

HV Battery started at 54%, drained to 46%, regenerated back up to 49%. Recovered 37.5%.
Distance traveled, about 0.3 mile.

Accelerated 0-25 mph in EV.
Gently braked back down to 3 mph.

HV Battery started at 61%, drained to 57%, regenerated back up to 59%. Recovered roughly half.
Distance traveled: about 0.2 mile.

Estimates with maybe 10% error. I don't have a sophisticated data logger. Just watching OBDII data and the values were constantly changing but that gives you a close idea of what is going on.

Do these actions relate to the 975.9 mpg in another posting below?

 

[jsus]

Do these actions relate to the 975 mpg in another posting below?

No, that was just downhill almost all the way.

 

[Darnon]

No, that was just downhill almost all the way.

And averaging <30mph.

 

[GPSMan]

And averaging <30mph.

As some will note, 8.3 miles in 22 minutes is a pretty brisk pace for city driving. When you consider ~6 minutes were standing still at stoplights, and there were 4 times accelerations from zero to 35 or 40 mph and 4 times decelerations from 40 mph to zero.

A small hill was involved, yes. 35-40 mph was the pace in a 35 zone.

 

[Silver23]

I started in EV on level ground.

Accelerated 0-33 mph in EV.
Gently braked back down to 3 mph.

HV Battery started at 54%, drained to 46%, regenerated back up to 49%. Recovered 37.5%.
Distance traveled, about 0.3 mile.

Accelerated 0-25 mph in EV.
Gently braked back down to 3 mph.

HV Battery started at 61%, drained to 57%, regenerated back up to 59%. Recovered roughly half.
Distance traveled: about 0.2 mile.

Estimates with maybe 10% error. I don't have a sophisticated data logger. Just watching OBDII data and the values were constantly changing but that gives you a close idea of what is going on.

I wonder what it does in eco mode. It really feels like the regen slows you down quicker to me in eco.

 

[GPSMan]

The Truck got 41.6 MPG in the uphill direction which used 0.2 gallons. Some EV was possible on the uphill climb.
The downhill direction used 0.01 gallons.

16.6 miles divided by 0.21 gallons equals 79 MPG.

Those who think hills hurt MPG aren't driving for maximum efficiency. People into the fine nuances always get remarkable MPG in hilly terrain.

 

[GPSMan]

I wonder what it does in eco mode. It really feels like the regen slows you down quicker to me in eco.

We know what it does.

Normal = normal regen strength
Eco = double regen strength
Slippery = half regen strength

No mode changes how much kinetic energy the truck has or how many watt-hours of power you can regenerate.

It only changes the negative G force.
Do you want to stop in a short distance or longer distance?

 

[GPSMan]

I think Eco was designed for the hybrid newbie, to "condition" the driver to stay off the brake pedal somewhat.

Normal is well, "average" for the "average" driver, and gives the truck an "average" feel, most similar to a traditional truck.

Slippery has been found to be an advantage for the hybrid expert, and those trying to hypermile. For those trying to beat the window sticker MPG ratings by yards, not inches.

 

[Silver23]

We know what it does.

Normal = normal regen strength
Eco = double regen strength
Slippery = half regen strength

No mode changes how much kinetic energy the truck has or how many watt-hours of power you can regenerate.

It only changes the negative G force.
Do you want to stop in a short distance or longer distance?

Well cool, I did not know this info. So I was right, it wasn't my imagination that eco slows you quicker. I've only had the truck a few days.
I guess it comes down to how close to other drivers, red lights you hit and when they turn, how much load in the truck, ect, ect, ect.
What does tow/haul do?? (conserning regen braking)

 

[GPSMan]

Tow haul increases regen, (probably double also) but turns on engine braking sooner (uses cylinders as air compressors) and increases RPM when you accelerate. Also no electric drive but it will shut off at stoplights.

Tow and Sport are similar in many ways, and boost power, but hurt MPG.

 

[AutobahnSHO]

Eco is more like the "one pedal driving" Tesla can do.

I feel the accelerator pedal is too "touchy" though. Tried slippery today and it's easier to be smoother.

And you can use "LOW" to brake fast with 100% regen. BE CAREFUL with this though- it does NOT light up the brake lights!!!! (Tried it early Saturday morning headed in to work when it was dark and I could see the brake lights on the road behind me.)

 

[JimParker256]

GPSman, in your first post here, were you in Slippery or Normal mode? (Just curious.)

 

[Silver23]

Eco is more like the "one pedal driving" Tesla can do.

I feel the accelerator pedal is too "touchy" though. Tried slippery today and it's easier to be smoother.

And you can use "LOW" to brake fast with 100% regen. BE CAREFUL with this though- it does NOT light up the brake lights!!!! (Tried it early Saturday morning headed in to work when it was dark and I could see the brake lights on the road behind me.)

I know what you mean but mine is nowhere near what the Tesla does. The one I drove practically stopped itself when you let off the go pedal.

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