Recent content by paw160

Has anyone used Ford's OpenXC with the FFE? I was wondering if it gave any really worthwhile information...

Faster acceleration means higher motor current. Electrical power increases with the square of the current P=I^2 * R. So you will have more power turning into heat with higher acceleration. Motor resistances are generally small but it's not negligible.

It's unfortunate but estimating remaining range is a horribly tricky thing to do since Wh/mi varies greatly with even slight changes in grade, speed, temperature and driving style. For all the flak that the "Guess-o-meter" gets I find it relatively accurate considering the difficult nature of...

Most 30A rated units are really 30A peak and continuously draw something less than that (27A sounds reasonable). At home you probably have a 240V circuit so 240x27=6480W. Public charge stations with 208 will have 208x27=5616W. What is your continuous current for home charging? Your numbers...

If they took care of the battery then I wouldn't worry too much about capacity loss in a year. I'd ask lots of questions about how they treated the vehicle on the lot (did they keep the battery topped up, etc.) and when and how the recalls were applied. The biggest concern would be if the...

Extremely cool jmueller! We were just talking about needing something like this. Very clever!

$10750 incentive is the current lease deal. I'm in 15101 and just leased a FFE from Shults Ford in Wexford. They worked what I thought was a very fair deal. The dealer basically gets a flat fee for these so they are flexible in the price. There was zero stock available so I had mine factory...

Where are you at in PA? I just leased near Pittsburgh and had a good dealer experience. I'd be happy to refer my salesperson. I went with the 10,750 off lease and they worked me a nice deal.

Modifying an existing EVSE is probably not a good idea. But the key thing to check is the relay (or contactor) rating. Then I'd also check any fuses/breakers and wire gauges. If it was designed for 16A then it's unlikely that any of the critical internal components are going to be rated for...

Just in time for my lease to expire. Excellent timing indeed!

jmueller065: that would actually be correct since it's in Wh/mi. When you aren't moving this number is technically infinite. I'd really like to see a kW meter (not per mile). It would also make it easier to accurately figure out the power used by different modules (heater, stereo, etc.)

sefs: Sure it's a small math problem. Divide by a little number and get a big number for short distances. But I think it's possible that their bad math might extend to the reversing condition. This corresponds to some other behaviors, such as the budget surplus will jump to -10 or...

I've noticed this too, but I notice it especially if I have to reverse for any significant distance immediately after starting. At work sometimes I have to reverse halfway through our parking lot because it is so tight, and I've seen 999wh/mi when I put the car in D afterward. I assumed that...

I used the following numbers: Frontal Area: 2.23 m^2 Coefficient of Drag: 0.295 Coefficient of Rolling Resistance: 0.01 (depends heavily on the tire...) Air fluid density: 1.2 Mass: 1674 kg I gathered these numbers from various websites and making a few assumptions about the car. In my...

WattsUp is right. On a 208VAC circuit you won't likely get 7kW charging (that would be >33A). The EVSE actually tells the FFE how much current it is allowed to draw. So if it is installed on a 30A circuit, it will limit to something slightly less than that. 5.78kW/208VAC = 27.8A which seems...