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View Full Version : 2,147,484 kWh trip... Uh Oh



Blackie
12-26-2013, 10:11 PM
Newly leased black 500e. Burlingame Fiat honored the $999/$199/12K deal. Concord Fiat would not. Of course, the recent trip that shows 2,147,484 kWh used for 125.1 miles did scare me a bit... hmmm, thats about a $687,200 PG&E bill.

Overall pleased with the car after 1000 miles, but the true range is disappointing. It will show 90+ available, but often can barely make 65, at least on mostly highway on a cool, windy day, even with eco driving. Heaven forbid we use the heat.

http://blackie500.blogspot.com

Tweak
12-26-2013, 10:20 PM
Welcome to the forum.

rcboosted
12-26-2013, 11:50 PM
Newly leased black 500e. Burlingame Fiat honored the $999/$199/12K deal. Concord Fiat would not. Of course, the recent trip that shows 2,147,484 kWh used for 125.1 miles did scare me a bit... hmmm, thats about a $687,200 PG&E bill.

Overall pleased with the car after 1000 miles, but the true range is disappointing. It will show 90+ available, but often can barely make 65, at least on mostly highway on a cool, windy day, even with eco driving. Heaven forbid we use the heat.

http://blackie500.blogspot.com

I wish I waited a bit, I misunderstood what "sold out" means, at least the new meaning dealers that dealers use. But deal isn't terrible though.

If keep it under 65mph, you should be able to get more range that 65. Since I get stuck in traffic all the time, I get about 100 in range usually.

nathan_h
12-27-2013, 01:42 AM
Yep, range is all about how one is driving. Very easy to get more than 100 miles, in stop and go traffic around town. And doing 80mph on the freeway, I'd be surprised if I got more than 60 miles of range.

BritinNoCal
01-23-2014, 02:18 PM
I recently saw my Trip display show a similarly crazy high energy consumption for the trip with a corresponding Hummer like fuel consumption.
My Fiat Access app showed the same values for the Trips, which were orders of magnitude higher than the total energy consumption. There seems to be a software defect somewhere in the trip computer

SC Surf
01-23-2014, 08:33 PM
I can't help fix your problem, but that number has special meaning for programmers and explains a bit about how the electricity is tracked. Computers commonly use binary numbers with 32 bits (where each bit is the equivalent of a digit). And frequently, 1 bit is used to represent positive vs. negative numbers, leaving 31 bits (binary digits) for the actual number, and the highest number you can represent with that is 2^31-1= 2,147,483,647. So the counter is measuring in Wh, and rounding to 2,147,484 kWh on the display, and now there's probably a programmed cap that prevents it from looping around. Without that cap, adding 1 Wh to that number would actually flip the counter to -2,147,483,648 Wh, and the car would start counting up from there.

Useless knowledge, but perhaps interesting for some.

Tweak
01-23-2014, 10:05 PM
I can't help fix your problem, but that number has special meaning for programmers and explains a bit about how the electricity is tracked. Computers commonly use binary numbers with 32 bits (where each bit is the equivalent of a digit). And frequently, 1 bit is used to represent positive vs. negative numbers, leaving 31 bits (binary digits) for the actual number, and the highest number you can represent with that is 2^31-1= 2,147,483,647. So the counter is measuring in Wh, and rounding to 2,147,484 kWh on the display, and now there's probably a programmed cap that prevents it from looping around. Without that cap, adding 1 Wh to that number would actually flip the counter to -2,147,483,648 Wh, and the car would start counting up from there.

Useless knowledge, but perhaps interesting for some.

Welcome to the forum.

Sharing knowledge is a big reason we are all here so thanks for your share.