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EV Modes for a Newbie


jdcliff
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Just got delivery of my 2017 FFE Titanium. I know that the battery I'd charge in my garage is completely empty. 

 

My question: 

 

Is that empty battery what is causing my EV Now Not Available screen when I try and switch to EV-Later or EV-Now? 

 

And is there a reference post on the forum for all of the acronyms? 

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Yes, that's why it says EV Now not available. After it's charged some then you'll be able to choose from Auto, Now or Later.

Also, it may say that if the battery still has juice if the battery temperature is too hot. I live in the AZ desert where outside temps are now 115-118 and internal car temp is 150 when I get in after work and I can't even use EV now and the engine runs the entire time until I get home. It does use both engine and battery on my way home cause when I get home the battery is dead but my gas mileage is about 65mpg from my trip home.

 

And I don't know of a reference forum thread, I'm pretty new as well.

But I see almost no activity here. I'm also on the Tesla Model 3 forum and there's about 20-30 posts every hour.

Edited by jasper7821
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Just got delivery of my 2017 FFE Titanium. I know that the battery I'd charge in my garage is completely empty. 

 

My question: 

 

Is that empty battery what is causing my EV Now Not Available screen when I try and switch to EV-Later or EV-Now? 

 

And is there a reference post on the forum for all of the acronyms? 

Yes, either EV mode requires that there be some charge in the battery.

 

Note that there is only one battery.  It is 7.6 kWh total.  The top 5.6 kWh is used for EV only propulsion.  The next 1.5 kWh is used for hybrid mode.  The remaining 0.5 kWh is reserved to prevent complete discharge of the battery which would disable the car.

 

There is no traditional starter motor for the Internal Combustion Engine (ICE).  It is started using the High Voltage Battery (HVB) to run one of the high voltage electric motors.

 

There is also no alternator.  A DC to DC converter is used to convert 350 volts DC to around 14 or 15 volts DC to charge the 12 volt battery.

 

It is physically impossible for the ICE to move the car in reverse.  Only one of the electric motors can do that.

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