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Driving to Bathurst

Discussion in 'Australia & New Zealand' started by 100KWH, Oct 9, 2018.

  1. 100KWH

    100KWH Member

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    Hey all

    Am going to be driving to Bathurst this weekend. Used ABRP and was a little bit concerned that the I use up nearly the whole battery for a 200km journey. The plan spat out avg consumption of 408Wh/km over the 200km drive distance) with a SOC of 12% upon arrival at the Bathurst SC.

    I used the below settings, could this be sanity-checked?

    Model: P100D, 21" wheels
    Ref speed: 100% (is this the right setting? I presume this means I'll always drive at the given speed limit)
    Max speed: 110kph
    Depart charge: 99%
    Goal arrival charge: 10%
    Outside temp: 20C
    Headwind: 15m/s (this is the figure that most-drastically alters the results - is 15m/s unreasonably high?)
    Road conditions: dry
    Extra weight: 400kg (5pax + their luggage)
    Batt deg: 5% (conservative - car's less than 9 months old and hasn't even done 10k yet)
    Time to open port: 5min (lol)

    I know there's a 500m+ elevation difference between Syd and Bathurst, but for the P100D's purported 480km rated range (typical, not rated) ---> 200km actual for a Syd to Bathurst trip with the above specs seems incredible!

    Anyone else's experiences?
     
  2. malcolmpurvis

    malcolmpurvis Member

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    Those numbers seem a incredible. What happens if you set the reference consumption to your typical highway use?

    I did a day drive from near Olympic Park in Sydney to Bathurst about a month ago in my Model X 100D. IIRC I left with 95% charge, arrived with ~46%, supercharged to 95% again and then drove around seeing the sights. I left Bathurst with ~80% charge and got home with ~35%. I was delighted to see that from Mount Victoria to the bottom of the hill at Emu Plains I averaged 27Wh/km!

    If I use a reference consumption of 250Wh/km for the Model X ABRP gives similar numbers to what I saw.
     
  3. 100KWH

    100KWH Member

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    Thanks for your insights. So yes I actually accidentally left that out - my ref consumption was conservatively set at 260Wh/km @ 110kph. So far my lifetime efficiency is 232kph which rarely involves the elevation changes one would encounter leaving Sydney. However, as this trip precisely does involve such elevation change, high speed and likely headwind, I thought 260Wh/km wouldn't be unreasonable (whereas 232Wh/km would be).

    FWIW, I will report back how the trip actually went once I take it. I suspect that ABRP's figures are a worst-case scenario given my conservative parameters.

    I do recall one trip back from the blue mountains and I actually ended up with -25Wh/km!!!!!!
     
  4. WhiteStar

    WhiteStar Member

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    71097D9B-42EE-4692-9047-C55BAB4E9DC5.jpeg
    Yes 15 m/s headwind is ~55 km/h possible in storms but highly unlikely all the way to Bathurst & if calculated as all headwind component then that will skew the calculation unrealistically. A 15 km/h headwind is more realistic I think. Heavy weight will contribute. I think this graph is realistic based on a P90D although I didn’t adjust for full weight.
     
  5. WhiteStar

    WhiteStar Member

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    D4322E6E-88DC-4C04-8EFC-C4CE43264284.jpeg 7C0925C5-AEAE-4EBD-805B-798100089395.jpeg Based on P100D, 400 kg & en route weather forecast...no problem!
     
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  6. ShockOnT

    ShockOnT ⚡️⚡️⚡️⚡️⚡️

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    I've done the trip many times in my S75D.
    Piece of cake. Usually get there with just under 50% remaining (eg. 46%), departing with 100% from postcode 2074.
    With your 100D you'll probably have over 50% when arriving, you could potentially do the return trip without even supercharging.

    Enjoy your trip!
     
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  7. Mark E

    Mark E Member

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    I've also done the trip multiple times in both my S85 and an S75 - both RWD. In both cases we got there with around 50% remaining, driving sensibly from Hornsby. There is something drastically wrong with that calc if it thinks you can't make it in a 100kWh car.
     
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  8. meloccom

    meloccom Moderator Aus/NZ

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    Also you can jump in your car and navigate to the Bathurst Supercharger and it will predict the charge at destination.
    If you’re still worried have lunch at the Hydro Majestic on the way through and top up on their destination charger.
     
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  9. 100KWH

    100KWH Member

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    Thanks all. This trip looks like it won't be an issue! Will report back on how it actually goes.

    @WhiteStar what is that app???
     
  10. WhiteStar

    WhiteStar Member

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    It’s EV Trip Optimizer for Tesla
    Also available for Android

    ‎EV Trip Optimizer for Tesla
     
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  11. ARMARM

    ARMARM Member

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    Went to Bathurst in July in our X75D with 2 adults, 3 kids and a frunk & trunk full of luggage, started at 99% SOC, avg temp 10c, avg speed 70kph, +600m of elevation, travelled 185km and arrived with 32%
     
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  12. 100KWH

    100KWH Member

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    With these stats I would be very surprised if I arrived at Bathurst with anything less than 32% SOC!
     
  13. ARMARM

    ARMARM Member

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    In an S, you'd easily make it with more than that.

    (See image) We were travelling to Dubbo, a 860km round trip, and averaged 221Wh/km. The Bathurst to home run was much more economical.
     

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  14. 100KWH

    100KWH Member

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    Made it to Bathurst with 49% remaining.

    Plenty left to do a few spirited laps on Mt Panorama :D :D :D
     
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  15. RossBrindleyAU

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    I have done the Bathurst trip from Melbourne in my P85D 3 times. The last leg from Gundagai to Bathurst is mostly up hill and the first 2 times I arrived at Mt Panorama with around 5-8% remaining.

    Unfortunately this left me feeling a little over-confident and this time I drove a little too quickly from Gundagai to the turnoff (approx 115kph). I ended up running completely flat about 2km from the Supercharger in Bathurst centre.

    VERY embarrassing !

    I stopped just before the roundabout at Brilliant street, after rolling downhill for the last kilometer or so, when a truck stopped to give way. I was very lucky that it was two lanes as when the car stopped it automatically applied the park brake and that was the end of any response from the car in terms of starting. I still had the 12v battery to operate the hazard lights and the main screens but absolutely no response from the brake pedal.

    Fortunately we managed to get the resident of a house beside where we stopped to allow us to use his 10amp power outlet and an extension lead which, when connected to my 50m lead, was long enough to reach the car. I took almost an hour to register 1km of range!!!. At about 45 minutes I got into the car and pressed the brake pedal and the car responded so I moved it to the parking lane.

    After a total of 80 minutes it reached 2km range so we headed off to the supercharger.

    So now I know, after owning the car for 20 months without an issue, what happens when you push it to zero.
     
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  16. ShockOnT

    ShockOnT ⚡️⚡️⚡️⚡️⚡️

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    That’s very useful information! Sorry you had to be the guinea pig though...
    I always keep 2 20m extension cords in the car for just this sort of contingency.
    I rolled into Armidale on Friday night with 11km range, after leaving Port Mc on 90%.
    Winding Oxley highway in torrential rain threw my calculations out a bit :)
     
  17. RossBrindleyAU

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    The distance on the route I chose is 303km and I started with around 375km range. My guess is the trip to Bathurst is about 70% uphill or flat with very little downhill regen.

    The trip back was easy and I arrived at Gundagai with around 70km range even though I was driving at the full 100kph for most of it. Lots of regen time...
     
  18. RBR

    RBR Member

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    Two destinations chargers at the Information Centre Cowra removes a lot of stress...
     
  19. 100KWH

    100KWH Member

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    I didn't need them, but did try to find them on the day - couldn't for the life of me find where they were! That said, the carpark was full that day so might have been sufficiently hidden by an ICE.
     
  20. PJF000

    PJF000 Member

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    they are in the park opposite
     

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