ICE in EV Mode ... Again

Of course. We need to know the driving & charing information prior to that happening. Think about how dramatically that varies from owner to owner...

 

It will be interesting HOW the dealer tests it.

 

You're not reading what I'm saying. Even if the ice starts in EV mode, there will still be no bar in the middle.
Also, you might have an ECU or an accelerator problem. In my mom's 03, she had similar behavior where the ice would rarely shut off. Finally, at some point a code was thrown about the accelerator. Replaced the accelerator pedal and all the problems went away.
By the way, how is your 12V battery?

 

And here's what the modes look like...

HV has the 2 symbols:


EV has only the 1 symbol:


Above, even though the EV isn't shown, you're still in EV mode.

Below is what EV looks like when the engine isn't running. Just the outline means it is.

 

PiPLosAngeles, I didn't see any mention of HVAC temperature. Do you have it set to "LO"? I believe if you have it set to somewhere above the current cabin temp, the ICE may run to warm it up even without the fan running. Somebody please confirm or correct me on this. My outside temp was 41 degrees early this morning, but my ICE didn't come on with the temp set to LO.

 

I don't think ice will turn on unless you turn on the fan as well. Though I generally drive with LO just to be safe.

 

I think I found the ICE coming on in my '06 if the temp was set to my normal 70 degrees without the fan. This morning was about as cold as we have experienced since I have had the PiP.

 

i experienced something like this just last week. three times, i went out with temps in the low 40's and after about 1/2 mile the ice kicked on and went thru the warm up for a couple of miles. never happened before, even with temps in the low 30's. after the first time, i checked all my settings to make sure everything was off. now, the last couple of days, it has not come on. it can be very puzzling. it started soon after i got my L2 charger, but i don't see how that could have anything to do with it.

 

I wonder if ECO mode has anything to do with it, pedal sensitivity, etc..

 

i'm always in eco mode, no change. and i drive like an old lady. ice came on in the same spot all 3 times, picking up speed from 25-35mph on a slight downhill, hsi around 1/4.

 

Maybe the car has developed self awareness and feels you're treating it too lightly.

 

probably right, have you read the 'boring' thread?

 

I too have experienced this the last 3-times with similar temperature? Left my house with a full charge on each occasion.

 

the car definitely has a mind of it's own, Christine?

 

To monitor this better leave the HSI on and use the energy monitor screen on the radio.

And as John posted above you can be in EV and have the ICE running. While the ICE is running you can toggle the EV/HV button and nothing really changes.

Is you car getting stuck in HV mode while you see the EV screen? Meaning you can only accelerate up to where the E is in "EV car" then the ICE kicks on. Maybe give this a test. Also, I see a slight delay in the HSI screen and how much I am accelerating so for testing don't get too close to the power line.

 

I've had my car for a bit over 9 months now and I have a pretty good handle on how to deal with the regen going down the hill as I leave my house. During the Spring/Summer, I always pay enough attention to prevent the ICE from starting due to "excess regen" (from prior logging sessions, I leave the house with 85.1%, consume about 2-3% out to the main road.. the ICE will start when the battery reaches 84%).

However, this morning the outside temp was showing 48F. I took my kid to school in the morning and then came home again before heading out to work (both times with a full battery). In both instances (leaving the house), my ICE started while on my normal route leaving my house. Although I wasnt logging data (I will tomorrow), I'm beginning to think that the car handles "excess regen" differently when its cold outside (or at least cooler than 60F). I'm thinking either the threshold for a "full battery" is lower OR the battery/BMS is not "behaving" the same way when its colder (most likely battery).

A little ambiguous, I know.. but I'm just saying.. something is different now that its colder. Although Toyota tries to explain that the ICE may start if the car is left out in 30F weather or whatever, I think there are varying conditions that are related to cooler temperatures that are not explicitly explained in the manual. This may also explain Bisco and El Dobro's ICE starts in the morning..

 

leaving your house with and full charge and immediately going down a long hill throws in a whole new wrinkle!

 

I think that is what's happening. You overcharged the full battery (with regen brake) so the car drains it off by spinning the ICE.

I see some getting upset when ICE came on to warm itself up. It burns 111 ml of gasoline about the size of two eggs.

 

This has happened to me too several times. In EV mode, car warm, no other obvious reason and the ICE comes on. For me the question is not why it comes on; I accept the fact that it's a complex system and it may not be apparent what factors influence this. What I want to know is why if I pull over, shut it off and back on I can now continue my entire trip in EV without ICE? It seems to get stuck in HV mode, even with EV selected, and requires a "reboot". Is this the Windows version of the PiP ? Also my impression is that it is more likely to happen when I have EV plus ECO selected, although it happens without ECO also.