I was chatting with someone today about this.  He tried to make it an "aha" 
moment, as in "Aha!  See how impractical EVs are!"  I pointed out that 
equivalent or similar cold weather accomodations exist for ICEVs, it's just 
that he's used to them and/or they're invisible to him.  For example, fuel 
(especially Diesel fuel) is formulated differently in cold weather.  And 
some far-north states and countries need block heaters - to keep their ICEs 
warm with electricty, so they'll start with electricity!

In a properly designed EV, cold worries shouldn't be a big deal.  The EV's 
battery should have thermal management, maybe even a heater for extremely 
cold weather operation.  

In fact I would argue that EV battery thermal managemetn is elementary 
compared to the complex, computer controlled millisecond-by-millisecond 
adjustment of fuel mixture, spark timing, and even valve timing in ICEVs.  
Every ICEV driver takes that stuff for granted now, but in the days of the 
Model T and its ilk, all those adjustments had to be made on the fly by the 
driver.  

By the time I was aware of Things Automotive, spark advance was handled by 
centrifugal and vacuum devices.  However, I'm old enough to remember (and to 
have used) manual chokes.  

One day you young whippersnappers will get to say something similar. "I 
remember when you had to check your EV's battery temperature before 
charging.  Can you believe it?  In fact, in my first EV, I actually had to 
put WATER in the batteries once a month."

David Roden
EVDL Administrator
http://www.evdl.org/


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