Experimental Data / Correction

[The Real Maverick]

A long time ago someone posted (I forgot who) that the truck won't go into EV drive above ~50 mph if the HV battery was under 45% charged. After 15 minutes of testing myself, I agreed this was true.

THIS IS NOT TRUE

The truck will go into EV drive at any speed and any battery charge level.

It is just less likely to do so with less than 45% charge at higher speeds.

I have noticed Truck dropping into EV on downhill descents at highway speeds with very low SOC on many occasions over many months now. In fact, I try to crest a hill with low charge, to make lots of room to refill the battery on the way down.

It's not guaranteed but I've had the engine shut off at 65-70 mph with battery in the 30's on multiple occasions.

* you'll need an ODBII port reader to view battery charge in detail

Sponsored

 

[Rallywagon]

I assumed the Maverick was too much of a brick at those speeds to not demand full ICE power even down hill. Looks like I need to spend some time with my shops FDRS on my commute as it's all highway and see if I can't add some efficiency.

 

[The Real Maverick]

I assumed the Maverick was too much of a brick at those speeds to not demand full ICE power even down hill. Looks like I need to spend some time with my shops FDRS on my commute as it's all highway and see if I can't add some efficiency.

Use the built-in "EV coach" screen to your advantage. It's my favorite tool to get higher mpg.

 

[MaveRichard]

You’re correct.

It was me.

These trucks act way differently in cold temps and trips under 10 miles.

Glad we could all learn together.

Edit: downhill and time off throttle are a big factor.

 

[The Real Maverick]

You’re correct.

It was me.

These trucks act way differently in cold temps and trips under 10 miles.

Glad we could all learn together.

Edit: downhill and time off throttle are a big factor.

Thought it may have been you.
Thanks.

 

[Pikey87]

Use the built-in "EV coach" screen to your advantage. It's my favorite tool to get higher mpg.

Same. I just can't be bothered to dig into obd data, (although I do like reading the info some of you guys have posted over the last 2 years) but in my 23 XL hybrid, using the EV coach is the difference between 40-47+ mpg. I'm under 40mpg at nearly all times during winter though lol. That heater really cuts into mpg.

 

[wax87]

A long time ago someone posted (I forgot who) that the truck won't go into EV drive above ~50 mph if the HV battery was under 45% charged. After 15 minutes of testing myself, I agreed this was true.

THIS IS NOT TRUE

The truck will go into EV drive at any speed and any battery charge level.

It is just less likely to do so with less than 45% charge at higher speeds.

I have noticed Truck dropping into EV on downhill descents at highway speeds with very low SOC on many occasions over many months now. In fact, I try to crest a hill with low charge, to make lots of room to refill the battery on the way down.

It's not guaranteed but I've had the engine shut off at 65-70 mph with battery in the 30's on multiple occasions.

* you'll need an ODBII port reader to view battery charge in detail

I think they were saying that he could not get up to 50 mph in EV mode alone. In other words, no matter how careful you are with the throttle, on level ground, starting at 0 mph, the ICE will kick in around 35mph.

 

[The Real Maverick]

It looks like IF you tap the brake, just for a second or two with low state of charge and high speed it will drop into EV mode. Above 45% lifting your foot off the throttle usually does it.

Below 45% at high speed, lift foot from throttle and briefly tap brake. Like when cresting a hill you know you can coast down the other side.

 

[Ozarkbeard]

...in my 23 XL hybrid, using the EV coach is the difference between 40-47+ mpg...

Agreed. EV Coach is the way!

...That heater really cuts into mpg.

And also just having a cold battery. The battery will not be allowed to accept a charge until the battery is above a certain temp. This is very noticeable when going downhill. Where you normally get regen., you get engine braking instead, until the battery is warmer.

 

[wax87]

Where do the electrons go when you are in regen and your battery is at 100%

 

[The Real Maverick]

Where do the electrons go when you are in regen and your battery is at 100%

The generator CONSUMES the power by spinning the engine at an rpm proportional to the wattage being generated.

 

[wax87]

The generator CONSUMES the power by spinning the engine at an rpm proportional to the wattage being generated.

But often times the ICE is off. This does not make since to me, are you saying that the generator is driving the truck forward?

 

[Darnon]

But often times the ICE is off. This does not make since to me, are you saying that the generator is driving the truck forward?

If you're in regen nothing is driving the truck forwards than momentum. With the battery full, the "drive" motor would be turning (technically it always is) and [re-]generating power that is then shunted to the starter/generator turning the engine against compression which turns it into heat.

 

[The Real Maverick]

But often times the ICE is off. This does not make since to me, are you saying that the generator is driving the truck forward?

What you are mentally picturing is not an actual real life situation.

ICE can spin without fuel. Up to you if you consider that "running" or not.

Watch your instantaneous MPG.

If the value is 9999 then the engine is spinning, being spun by electrical power, and is not using any fuel at all.

This is different than "EV mode" when the engine is not spinning and your display will say "electric" instead of 9999 MPG.

 

[wax87]

What you are mentally picturing is not an actual real life situation.

ICE can spin without fuel. Up to you if you consider that "running" or not.

Watch your instantaneous MPG.

If the value is 9999 then the engine is spinning, being spun by electrical power, and is not using any fuel at all.

This is different than "EV mode" when the engine is not spinning and your display will say "electric" instead of 9999 MPG.

Yes, I understand that, so again there are lots of times when on the highway the instant MPG goes from 9999 to EV,

Sponsored