RegGuheert said:
edatoakrun said:
Every day I begin my driving my car from a 100% charge, with a 40-something estimate from my owner's page, and 50-something from the GOM, as a result of the about 2000 ft of ascent (and about 500 ft of descent) in the last 7 miles to my home.
Seven miles, and miles and the same descent later, the GOM reads 100 to 110 miles, depending on temp, driving style, etc.
O.K. It sounds like you do this practically every day! Would you mind recording the exact conditions tonight and tomorrow morning and posting them here?
Tonight: Bars remaining before shutdown, GOM and efficiency number from main dashboard.
Tomorrow morning: Predicted range from home page BEFORE starting your car.
TIA!
To illustrate how useful Carwings is, to those who remain proudly ignorant, and also to show the limits of the GOM, I plan to repeat the the test run below, on the route I mentioned earlier, at different inital charge states.
I'm planning on 3 tests, with “80%” by timer, 100% charge, and the optimum for my purposes, the approximate charge given by 30 minutes of L2, following a 80% timer charge, which is shown as”92%” on the owners site, and 11 bars on the dash display. Those are the test results are shown in the table below.
When I first got my LEAF, I quickly discovered that, for my most common trip, the one I describe earlier in this thread, I would get almost the same energy recovery from the proximately 2,000 ft. of descent, about 1500 net, by charging to a point beyond 80%. This was long before CW had become both accurate and reliable. My “test” was to simply stop after the large initial descent, about 1400 ft. net in the first 7 miles, and touch the discs, following charging to different levels. 100% charge = Ouch!, 80% warm disks, and 90%, just a bit warmer.
I generally charged only to 80%, but when winter came, with a little shorter range, my 8-9 bar “commute” often began to take 10 or 11 bars, so, on rainy days or when I had more errands planned, I got into the habit of starting charging before I left home, just to have more detour options, on the 50-60 mile trip.
I think CW will give me a much better understanding of the optimum charge level, and the larger question, the ratio of descent/ascent energy recovery, than the disc brake heat test, I did a year ago.
So, on the 30th, I charged to 80% by timer, then added 30 minutes of 16 amp L2. Temp was in the low 40’s F while charging, and in the low 50’s while driving. No heater use, no rain. The cars temp bar display started at four, and the fifth one came on just before the conclusion of trip # 4, below. I stopped at the 10-mile from-my–home point, at the beginning and end of this trip, to rest the CW trip report, as shown below on trips 1 and 5. As you can see, I made two stops in town, separated by trip #3.
I plan to repeat it at 80% charge, and 100%, and will post the results.
All reports below are from Carwings, except the
GOM numbers, which I have added , for your amusement.
Mar/30
Total kWh use: consum. Regen distance Energy Econ
GOM-47 miles at start-up
Trip 1: 0.4kWh 1.1kWh 0.7kWh 9.8miles 24.8miles/kWh
104 miles shown at end
Trip 2: 3.1kWh 3.6kWh 0.6kWh 14.9miles 4.8miles/kWh
Trip 3: 0.1kWh 0.1kWh 0.0kWh 0.4miles 4.4miles/kWh
Trip 4: 3.2kWh 3.8kWh 0.7kWh 15.2miles 4.8miles/kWh
34 miles shown at end
Trip 5: 4.2kWh 4.3kWh 0.1kWh 9.8miles 2.3miles/kWh
7 miles shown at end
Distance measured by Carwings total: 50.1 miles (2.5% constant under-reported)
Distance measured by odometer total: 51.4 miles
