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25% battery left and it switches from EV to Normal

746 Views 9 Replies 5 Participants Last post by  Peshmerga, 
Peshmerga
Hey,

Anyone else having 20-25% battery left when the car switches from EV to Normal mode?

I mean its not even that cold here in Sweden atm, around 5-6 celsius in the morning (today).
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U
Its normal behaviour.;). Seriously, its always done that in my car. I think it keeps a reserve for boost or sport mode. I stopped using EV mode and leave it in normal apart from occasional Sport for joining fast roads. Same thing though, running in EV and then ICE kicks in about 20%.
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Peshmerga
Okay, I see. I guess thats why I cant get more than 38-45km on EV before the ICE kicks in.
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M
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Noah4x4
I think this might depend on your EV Priority settings....

Last week, I travelled almost 600 miles and when in the Yorkshire Dales (e.g. long challenging steep inclines and descents), driving in Normal mode (which seemed to use EV as often as possible), I managed to completely exhaust my EV battery, or at least the residual EV range was reported as "- - - miles". At this point, I got a message "MI-Drive not operational". I then could not change into Sport mode (n.b., I didn't expect to have any EV mode available). That status remained until I had used the recharge button and had added +1 mile EV range. I then added an initial 5 EV miles before turning off recharge button and the car would then drive in EV Mode, until almost exhausted again (down to 1 mile EV range) when the ICE kicked in. Note that it also kicked in on the steepest inclines where a boost was necessary, but back into EV mode when the climb ended.

My car is set to EV Priority Mode, which means that it will alway start in EV mode (unless insufficient EV battery) and stay in EV as much as possible. My guess is that in that condition it is possible to repeat the above, as the car wants to maximise EV driving until it can manage no more, even at 80 MPH. But if set EV Priority to Off (e.g., unchecked), I suspect that is when the ICE will kick in earlier. My guess is that if you have a regular short daily commute then EV Priority = On is best for lowest fuel consimption and emissions. However, if your journeys are longer or mixed, then EV Priority = Off may well be better choice. I need to go on a few more extreme journeys to confirm this. I am actually having a lot of fun playing about with settings to see which combination is best in various situations. My worst MPG has inevitably been on the near 600 mile trip, but I still exceeded 37 MPG, despite having only one initial (100%) charge and adding merely 7Kw by public charger mid journey. I reckon overall that was pretty good compared to any regular 2.5 litre petrol engine.
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Noah4x4 said:
I think this might depend on your EV Priority settings....

Last week, I travelled almost 600 miles and when in the Yorkshire Dales (e.g. long challenging steep inclines and descents), driving in Normal mode (which seemed to use EV as often as possible), I managed to completely exhaust my EV battery, or at least the residual EV range was reported as "- - - miles". At this point, I got a message "MI-Drive not operational". I then could not change into Sport mode (n.b., I didn't expect to have any EV mode available). That status remained until I had used the recharge button and had added +1 mile EV range. I then added an initial 5 EV miles before turning off recharge button and the car would then drive in EV Mode, until almost exhausted again (down to 1 mile EV range) when the ICE kicked in. Note that it also kicked in on the steepest inclines where a boost was necessary, but back into EV mode when the climb ended.

My car is set to EV Priority Mode, which means that it will alway start in EV mode (unless insufficient EV battery) and stay in EV as much as possible. My guess is that in that condition it is possible to repeat the above, as the car wants to maximise EV driving until it can manage no more, even at 80 MPH. But if set EV Priority to Off (e.g., unchecked), I suspect that is when the ICE will kick in earlier. My guess is that if you have a regular short daily commute then EV Priority = On is best for lowest fuel consimption and emissions. However, if your journeys are longer or mixed, then EV Priority = Off may well be better choice. I need to go on a few more extreme journeys to confirm this. I am actually having a lot of fun playing about with settings to see which combination is best in various situations. My worst MPG has inevitably been on the near 600 mile trip, but I still exceeded 37 MPG, despite having only one initial (100%) charge and adding merely 7Kw by public charger mid journey. I reckon overall that was pretty good compared to any regular 2.5 litre petrol engine.
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I had a similar warning soon after I had the car. The car then had a horrible pause freewheel, before ICE kicked. As I was doing 70 and flooring it overtaking stuff in the fast lane with traffic coming up behind this was really scary. Mazda diagnostics didn't come up with anything. Had a software upgrade anyway and it never came back. I switched off EV priority as my tech guy suggested it would help with the horrible pause when taking off at roundabouts and the tortured gearbox noises. They also went after the software upgrade.
Usually if I have 25%+ battery it will pull away in EV unless I have used plenty of go pedal, then ICE kicks in. It also goes to ICE mode at anything over 50mph if I use any substantial throttle, then drop back to EV. This is pretty seamless. In this EV priority mode off I will normally get --miles left when battery is about 25%. Sometimes it will go to almost zero. I never use recharge.
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Noah4x4
Interesting PhilUK. I was coasting downhill when it occurred, so no crisis. On reflection, I suspect it is sensible to adopt EV Priority On for most of my short commutes then select Off for longer journeys. Think I might try off regardless until we all work out best practices.
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U
Noah4x4 said:
Interesting PhilUK. I was coasting downhill when it occurred, so no crisis. On reflection, I suspect it is sensible to adopt EV Priority On for most of my short commutes then select Off for longer journeys. Think I might try off regardless until we all work out best practices.
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Well on my shorter journeys, into town or local garden centres (about 15 miles ish) ICE only kicks in if I clog it. Otherwise serene progress!
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M
From my experience 5-6 celsius is plenty 'cold' enough for the car to retain 20%+ charge. By UK standards that's still pretty chilly. We're still to get up to steady 15+ deg C temps in the grim UK North - anticipated range does seem to be improving (37miles after a charge today) but we're not quite optimal yet I think/hope.
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Peshmerga
I have EV priority on, but that only account for when you start the car. I came 42km on EV when ICE started to kick in, had 21% battery left.
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