mellobob
Posts: 249
Joined: Mon Jun 11, 2018 5:33 pm
Location: British Columbia, Canada

ICE on in 2023

I have a '23 GT Canadian and notice that very often driving about in B3 with the temp around 0-10 C (warmest it's been so far) that according to the usage display the ICE is on, but not connected to the front wheels or the battery. I assume it running the heat pump? However, if I I try to go to EV at this point it refuses with a "can't do this message". Changing the mode to D turns the ICE off and permits EV mode.

This make any sense?
Lon12
Posts: 102
Joined: Mon Mar 12, 2018 3:12 pm
Location: Calgary AB

Re: ICE on in 2023

I don't like it. With the old PHEV I could paddle as much as I wanted and the ICE would not turn on. As soon as you change B modes in the new one it will start the ICE and run it through its timer to make sure it has warmed up. Only way to stop that timer is to turn the car off and on again. So now I don't touch the paddle shifters any more to keep it in EV mode.

Nothing to do with the heat pump. It will run anytime as long as OAT is above -15ºC.
2023 Outlander PHEV SEL
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2017 Chevrolet Bolt

2018 Outlander PHEV GT sold
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mellobob
Posts: 249
Joined: Mon Jun 11, 2018 5:33 pm
Location: British Columbia, Canada

Re: ICE on in 2023

Ahh, not about the heat ... good to know. And, good to know that it's not just my perception being screwed up either.

Also, I've noticed that hitting one-pedal-mode turns on the engine as well. Oh well ...

I wonder what the point of all this is ... just to keep the engine warm doesn't seem to make a lot of sense to me.
Lon12
Posts: 102
Joined: Mon Mar 12, 2018 3:12 pm
Location: Calgary AB

Re: ICE on in 2023

Since they decided to use the ICE as an "engine brake" to keep the same deceleration rates for the different B settings. They need to keep it warm to prevent unnecessary engine wear. You will notice that if your battery is below around 60% charge then it will stay in EV mode as the battery will absorb the full regen amounts.
If you bring up the EV power on the centre display you can see what the different B settings provide for regen:
B5 = 32 kW regen
B4 = 24 kW
B3 = 20 kW
B2 = 12 kW
B1= 4 kW
When brakes are applied you get full deflection to indicate 40 kW.
2023 Outlander PHEV SEL
2022 Tesla Model Y
2017 Chevrolet Bolt

2018 Outlander PHEV GT sold
2018 Tesla Model 3 Performance sold
2017 Leaf SV sold
2014 Tesla S85 sold
2011 Leaf SL sold
mellobob
Posts: 249
Joined: Mon Jun 11, 2018 5:33 pm
Location: British Columbia, Canada

Re: ICE on in 2023

This is interesting. Is the actual amount of fuel used to keep the engine warm known? Or is the fact that we have a warm engine a non-issue?
Hasenphever
Posts: 43
Joined: Wed Jan 04, 2023 8:44 am

Re: ICE on in 2023

mellobob wrote: Wed Apr 05, 2023 8:57 am This is interesting. Is the actual amount of fuel used to keep the engine warm known? Or is the fact that we have a warm engine a non-issue?
I interpret the wording in the manual to be near zero fuel is being consumed in this instance:

"If the shift lever position “B” (Regenerative Brake) is selected when the drive battery is near full charge, or when it becomes hot or cold, the engine is driven by the generator to consume regenerative power and support regenerative braking. At this time, the EV priority mode is canceled. When the shift lever position is switched to “D” (Drive), the engine will stop and the EV priority mode can be selected again." (emphasis added)

My guess is at most idle level fuel is being used and zero fuel when regen braking is actively occuring. And if you are in the habit of driving almost exclusively on drive battery, the system is designed to eventually turn the engine on to consume fuel before it gets too old and really harms the engine.

This is a PHEV, so we should temper our expectations on zero or near-zero fuel consumption. While its fun to try and squeeze out as much drive battery as we can, the reality is the ICE and fuel should be used periodically to ensure those mechanical systems are operating well.
Lon12
Posts: 102
Joined: Mon Mar 12, 2018 3:12 pm
Location: Calgary AB

Re: ICE on in 2023

Yes. Very important to heat up the engine oil every now and then to prevent condensation from building up in the oil. I believe the Chevrolet Volt could suffer from milky engine oil if the owner never let the engine warm up enough.
2023 Outlander PHEV SEL
2022 Tesla Model Y
2017 Chevrolet Bolt

2018 Outlander PHEV GT sold
2018 Tesla Model 3 Performance sold
2017 Leaf SV sold
2014 Tesla S85 sold
2011 Leaf SL sold
mellobob
Posts: 249
Joined: Mon Jun 11, 2018 5:33 pm
Location: British Columbia, Canada

Re: ICE on in 2023

I agree completely about keeping the engine warm and using fuel. What I really don't understand is why the drive mode should have an effect.
Hasenphever
Posts: 43
Joined: Wed Jan 04, 2023 8:44 am

Re: ICE on in 2023

Good question on whether when the ICE is shown as being turned on keeps the engine warm. The way I read the manual in anything above B2 when the drive battery has lots of charge, the ICE is driven by the generator, so the display shows the ICE is on. It may not be turning revolutions to be kept warm, it is just on b/c the generator is on. Good question for a Mitsu engineer!
ChrisMiller
Posts: 616
Joined: Tue Jan 12, 2016 6:37 am
Location: Bucks

Re: ICE on in 2023

mellobob wrote: Wed Apr 05, 2023 8:57 am This is interesting. Is the actual amount of fuel used to keep the engine warm known? Or is the fact that we have a warm engine a non-issue?
I tried to work it out by monitoring the mpg. It appears to be just a few cls.
GX4h (2016) since 23/12/2015

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