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Trip report: Huntsville AL; Coffeyville KS; Richardson TX, and; home

Discussion in 'Tesla' started by bwilson4web, May 3, 2019.

  1. SAronian

    SAronian Active Member

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    Charging by the kWh in Northern California, but gas is approaching $5 a gallon here.

    sc.jpg
     
  2. fotomoto

    fotomoto Senior Member

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    I think you meant to put a decimal point in there somewhere. ;) 4.5 miles per kwhr is REALLY good for interstate speeds but I don't know the route or speeds traveled.

    Anyways, 4.5kwhr/mile over 50 miles is 11 kwh. At .20 cents/kwh that's $2.22 to cover 50 miles. Prius would take around $2.50 (per gallon).
     
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  3. bisco

    bisco cookie crumbler

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    amazing! almost defy's physics. musk is a genius!(y)
     
  4. markabele

    markabele owner of PiP, then Leaf, then Model 3

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    4.5 mi/kWh (222 Wh/mi) is very doable for a Model 3 on the interstate given the right temps and speeds. They are crazy efficient at high speeds.
     
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  5. fotomoto

    fotomoto Senior Member

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    Yeah, anything in the fours at highway speeds is really good. For me in the southern USA, interstate driving means 75mph+ on level or rolling elevation terrain (no mountain) trying to cover the most amount of distance in the least amount of time. 4.5kwh/mile would be outstanding under these conditions.
     
  6. bisco

    bisco cookie crumbler

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    4.5? so that would be even more than i figured
     
  7. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Part 3 of 3

    date location GPS miles Total mi Tier 1 min Cost 1 Tier 2 min Cost 2 Batt Cost Segment Cost Total Cost
    1 05/10 16:10 Coffeyville KS 0 0 $0.00 $0.00
    2 05/10 18:16 Springfield MO 135 135 54 $5.94 14 $3.08 $9.02 $9.02
    3 05/11 00:36 Little Rock AR 216 351 23 $2.76 17 $4.08 $6.84 $15.86
    4 05/11 04:15 Memphis TN 137 488 2 $0.26 15 $3.75 $4.01 $19.87
    5 05/11 06:34 Tupelo MS 115 603 12 $1.44 16 $3.68 $5.12 $24.99
    6 05/11 10:30 Huntsville AL 144 747 $5.50 $5.50 $30.49

    • GPS - Google Map distances City to City, does not include meal and bathroom breaks
    • battery reserve - gross measured at EVSE into car
    Trip meter total:
    Mi kWh Wh/mi
    1 762.9 175 220

    • Total miles including meals and bathroom breaks
    Lessons Learned
    • Reserve miles 20-30 miles - using the trip planner, I would charge the battery to expected distance plus 20-30 miles. During the drive if the reserve miles dropped to ~10 miles, reduce speed.
    Bob Wilson
     
    #47 bwilson4web, May 11, 2019
    Last edited: May 11, 2019
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  8. bwilson4web

    bwilson4web BMW i3 and Model 3

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    Basic Autopilot

    In a rush, I left my electric razor and Continuous Positive Airway Pressure (CPAP) machine at home. In a world of disposables, the razor was easily fixed (Barbasol still tastes crappy) but a CPAP is not an off the shelf item. Used to treat sleep apnea, it ensures my sleep is not interrupted by short airway blockages. Then my wife spent seven days in the hospital.

    Easily confused by strangers, my presence anchors her in a safer reality to avoid more aggressive restraints. But her 24 hour care requires my sleeping in that abomination called a 'reclining chair.' It has two positions, seat parallel to floor or raised ~20 degree back. There is an extendable leg lift but the seat-to-back angle is fixed. Reclined, it is like sleeping in a bucket with the legs and knees above the rim. To mitigate, I filled the seat-to-back hole with spare sheets, blankets, and a pillow filler so I can 'cat nap' and be available to help the staff. My wife was discharged after IV antibiotics reduced the hand swelling and pain. So I took a nap at my Mom's home, packed the car, and we were off to home in Huntsville.

    'Micro sleep' is a thing that my narcoleptic wife (and late aunt) suffered. Involuntarily, the victim goes to sleep for 2-5 seconds with no warning and the most effective treatment is uninterrupted sleep. After seven days cat napping in a bucket chair and one post release nap, I was primed.

    Tesla's Autopilot has dynamic cruise control and automatic emergency braking to avoid running into things. The optical and ultrasonic sensor based, lane steering keeps the car from darting into a ditch or into on-coming traffic. It was on the leg to Decatur there were at least five micro sleep events that I was aware of and Autopilot kept us safe. I stopped in Decatur for a pee, stretch, and coffee break before driving the last 20 miles home.

    Micro sleeps are involuntary and detected only when the individual recognizes having woken up. When driving, it becomes either a head-on collision or single car accident. Autopilot gives them a chance to survive.

    Home again, I have my CPAP sleeping aid, my wife has her dogs, and me in familiar settings. Life has returned to what passes for normal ... but it is life thanks to Tesla's Autopilot.

    Bob Wilson
     
    #48 bwilson4web, May 12, 2019
    Last edited: May 12, 2019
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  9. Prodigyplace

    Prodigyplace Senior Member

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    Just an idea. Since you were with your wife on the hospital, did you see if they had a CPAP machine you could use? (assuming you know your pressure levels)
    Just an idea for the future.
     
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  10. ETC(SS)

    ETC(SS) The OTHER One Percenter.....

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    Two thoughts: (TIFWIW)
    Nose vents are very small and can provide some of the benefit of the CPAP machine, perhaps turning a micro-nap into a mini-nap. YMMV. If this trip isn’t a one-of, you may wanna get some and toss them into a JIC bag.

    This time of year, you may want to add some miles to your bingo-fuel calcu-guessing. I got called out yesterday to an office that was 70 miles away, but about 30 miles of travel and an hour of loiter time was added to my return trip by a washed out bridge, causing two accidents and a closed interstate.
    No big deal in a Prius, since as you know all too well there’s a significant reserve capacity (I’ve gone DTE-0 and then 50 miles routinely.)
    Might be different in a non-EREV.
    Again...YMMV.

    The latter won’t be much of a thing once the infrastructure matures.
    I wonder, for example, when AAA trucks will start carrying amperes as well as Dino-juice????

    Perhaps an opportunity for a budding entrepreneur out there.....;)

    Glad you kids made it back home safe and sound!!
     
  11. bwilson4web

    bwilson4web BMW i3 and Model 3

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    BIG CHARGE vs SEGMENTS

    In Memphis, navigation showed 205 miles to reach home giving two approaches:
    • direct - charge to 235 miles, this allows the direct route but we have to sit on the charger longer in the relatively slow, taper zone. SuperCharger time appears to be ~70 minutes but I need to repeat my benchmark.
    • Tupelo to home - for 115 miles and charger there for 144 miles home. Although the charger times are cumulatively shorter, this does not make up for the extra miles. Just fully charge and go home.
    Bob Wilson
     
  12. bwilson4web

    bwilson4web BMW i3 and Model 3

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    One of the interesting aspects was finding a planned recharging station at Ozark AR shutdown. My remaining, 30 mile range could reach Fort Smith but it was exactly that far away. Thanks to the clerk, I added 10 miles in two hours of 120 VAC charging, a reserve. There we charged at an RV park where we got a 'freebie' for 150 miles in 5 hours and a nap.

    We are used to seeing gas stations for our gas and hybrid cars. Switching to power outlets, RV parks, various J1772, and SuperChargers becomes easy. Fortunately, RVs have led the way to on-the-road, power outlets.

    Bob Wilson
     
  13. bwilson4web

    bwilson4web BMW i3 and Model 3

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    An interesting side effect of sharing my Autopilot experience:
    • teslamotorsclub - initial responses were hostile to what happened. In effect, populated by pricks.
    • teslaownersonline - initial responses were technically curious. It appears to be populated by somewhat technically skilled.
    • priuschat - I am trying NOT to be the 'mule and horse' offspring who tries to lure happy Prius owners away from their excellent rides. Rather my goal is to give insights to where technology has gone beyond what we used to have.
    Bob Wilson
     
  14. bwilson4web

    bwilson4web BMW i3 and Model 3

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    How to handle driving to the battery range:


    If the extra range in the battery falls below 10 mi, drive slower and reach the destination. The Springfield-to-Little Rock segment required driving a little slower . . . at night on a two lane road in the rain and fog.

    Bob Wilson
     
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  15. fotomoto

    fotomoto Senior Member

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    So, .04 cents/mile right?
     
  16. Prodigyplace

    Prodigyplace Senior Member

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    Wrong. $0.04 or 4 cents per mile,
    Not 4 hundredths of a cent.
     
  17. mikefocke

    mikefocke Prius v Three 2012, Avalon 2011

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    I highly recommend a jaw displacement appliance fitted by a dentist who specializes in them. Basically just the lower jaw forward thus opening the airway by leveraging the lower teeth off the upper ones. By sleep test results and my wife's ears, my apnea and snoring was dramatically decreased. I couldn't tolerate the CPAP. The appliances last about 5-8 years and I've been wearing various versions for about 15 years. No consumables. But you do have to find a dentist who specializes in fitting the appliance whch is custom built to your mouth in a factory.
     
  18. bwilson4web

    bwilson4web BMW i3 and Model 3

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    I have one and it too was safely home with the CPAP. . . <sigh>

    Bob Wilson