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504 Posts
As for the ICE kicking in until the battery is almost full for no reason at all - I believe this MAY have something to do with the evaporative system.. Because we drive a hybrid - the engine although warmed up, may not be able to pull all the extra emissions caught in the charcoal canister system - and this is part of the cycle that does it. I have noticed it happens more frequently when first starting up rather than when I have been driving all day (and I do drive all day)..The only changes to the algorithm in #4 are done by the drive mode you are in (ECO/Normal/Sport). Here's the deal in a nutshell:
Any exceeding of the blue power band in any drive mode normally invokes the ICE.
Sport Mode will always attempt to keep the battery at 80% for power reserve.
ECO and normal mode will kick in the ICE when battery falls to 4 bars or less or sometimes when power is in the top half of the blue power band with less than half battery.
EV mode will kick in the ICE when battery drops to two bars or blue band is exceeded.
And, most annoyingly, The ICE will just kick in in any mode until the battery is near full with no reason stated when trying, unsuccessfully, to engage EV mode when it should be available. I'm open to hearing reasons for this. It only seems to happen one time in any drive. I am relating this to some type of battery maintenance/calibration, but I'd really like to know the true answer - all the display will show at the time is "EV Mode Unavailable."
Cluster and center console-wise, I keep the current drive trip meter range and fuel in the cluster and Waze in the center console. I find the power band around the range and fuel to be the most beneficial in helping to drive efficiently. I am more concerned with power in/power out than where the power is going (to battery or wheels). After all, the goal is to use a little power as possible to get the results we're seeking. Knowing where you are on the power band helps you be better able to work to engage the EV side of things and avoid the ICE running when you know you have just that "little bit" to go before you hit the paydirt of a downhill. I live in a hilly part of NJ, so it's become a game for me.