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EV Trip Planner - model X

Discussion in 'Model X' started by dutchinchicago, Apr 15, 2016.

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  1. dutchinchicago

    Joined:
    Oct 12, 2015
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    Location:
    Chicago
    I am hoping to get my Model X within the next 10 weeks or so. I am hoping to take some road trips with it. EV planner is awesome for this but I am never sure what model to put in. A model X 90D can do less mileage than a 90D but would it be closer to a 85D or a 75D and what wheels should I choose? My model X has 20" wheels.
     
  2. scottf200

    scottf200 Active Member

    Joined:
    Feb 3, 2013
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    Chicagoland ModelX S603
    I made a post about it here: Model X Range

    Apologies if this has been discussed and I missed it but we are planning our first short road trip. I'm using EVtripplanner. Anyone figure out what options they like best. I was trying to decide on equivalent "S" drop down option of 19" or 21" and a speed multiplier that would give me a realistic "Wh/mile" estimated value for good planning. I realize there is more drag on the X vs S. As well HVAC (heat more so than A/C) has a pretty big impact. I was looking to see if other real-world users of this tool had suggestions.

    Here's a couple I was thinking of:

    Image: http://i.imgur.com/IYg07WX.png
    [​IMG]

    Image: http://i.imgur.com/ujIkD3M.png
    [​IMG]

    From EVTripPlanner Help tab:

    How It Works
    EVTripPlanner uses a physics-based model to predict how much energy your EV will use along your route. It accounts for:

    • Speed: this is usually the biggest contributor to variation in energy usage. We use Google Map's traffic-based estimate of current speed, which you can adjust up or down with the 'Speed Factor'.
    • Air density: this varies with temperature and altitude. The same level-road trip at a higher altitude takes less energy than at sea level since the air is thinner. Similarly, the same trip (without air conditioning or heating) takes less energy when it is hotter since the air is thinner. We determine altitude over the route using the Mapquest database and use your input for temperature.
    • HVAC: the heater and air conditioner, as well as any energy required to heat or cool the battery pack, use energy...even when you're not moving. We look at your cabin temperature setting and your estimate of the outside temperature.
    • On-board Systems: the computers and other on-board systems use energy, even when the car isn't moving.
    • Weight & Elevation Changes: the weight of the car and payload (entered) are used along with elevation changes along the route to determine energy used climbing...and recovered during downhills.
    • Friction, efficiency, regeneration: each EV converts electrical energy in the battery to mechanical energy at the wheels a little differently (and vice-versa). We account for these conversions and differences.
    • Your Car Model: each car has different parameters for how they use energy in the categories above. EVTripPlanner takes the best data available to match our model to the actual measurements and published charts.
    Trip Settings
    Setting the parameters for your trip is critical to getting an accurate estimate of the energy that will be consumed. The most important setting is your "speed factor", which is how much faster or slower than the prevailing speed
    Setting the parameters for your trip is critical to getting an accurate estimate of the energy that will be consumed. The most important setting is your "speed factor", which is how much faster or slower than the prevailing speed (as estimated by Google Maps at the time of planning the route) you are going on average. Unfortunately, you can drive in different patterns and have the same average speed while consuming different amounts of energy. While these errors don't tend to be very large for long trips, the closer to "cruise control" you are at the average speed on long segments the closer the estimate will be. Also fill in payload, outside and cabin temperatures and your correct car model - these can make a significant difference.
     
  3. scottf200

    scottf200 Active Member

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    Chicagoland ModelX S603
    No one said much but this.
    It looks like a reasonable estimate for the IN and KY drive.

    For the 19", I basically played with the speed factor (1.05) to bring up wh/mile value to ~365. Just looking at some of the examples in this thread I thought that was doable if you drive reasonable and the road is generally flat (and mostly highway). I wasn't sure if this technique made since or if I should just go with the larger tire vehicle. Maybe it doesn't matter. Just thought others may have been through this or played with speed factor to get it to match their personal S driving.
     
  4. X Fan

    X Fan Member

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    Naples, FL & OIB, NC
    Has there been discussion and/or progress in adding the X vehicles to the program?
     
  5. CTemp222

    CTemp222 Member

    Joined:
    Jan 14, 2016
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    Chicago
    What really helps range is keeping cruise control/ autopilot on. This makes it so that there are no unnecessary accelerations, which humans are very good at. Also keeping speed down helps, check the weather AND wind. Wind can be a silent range killer.
     
  6. EcoHeliGuy

    EcoHeliGuy Member

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    Canada
    Especially true in mountain driving.
     
  7. Gwgan

    Gwgan Almost a wagon

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    I add extra an extra 600 lbs over the S P90D on 21" tires and the wh/mi comes out close to my reality.

    How can we get EV Ttrip Planner the data it needs?

    "When will EVTripPlanner support the 70D, my electric scooter, or Tesla's newly released electric batmobile(TM)?

    ... if you want to help get a car supported faster, try to find reliable efficiency vs speed data (like this) prefereably published by the manufacturer of the car, and email it to me."
     
    • Informative x 1
  8. MattXowner

    MattXowner Member

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    Scottsdale, AZ
    I generally use the P85 with 21 inch tires. The X is about 800 pounds heavier, so I adjust the weight to 1000. The cabin is bigger so AC/heat has to work harder and the speed adjustment at 1.1 or 1.15 usually covers that in my belief.

    Check out the average wh/mile thread--that will give you a good range estimate in the real world. I've been right under 400 and more like 350 on the highway so you know how much range you'll get off the 90% charge or 100% charge.

    For example if you can get 400 wh/mile and charge to 100% you should be able to squeeze out 225 miles. 90k/400=225. As long as the next Supercharger or destination charging station is <225, you're good to go.
     
  9. EVTripPlanner

    EVTripPlanner Member

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    Thousand Oaks, California
    Hello everyone, this is Ben, the creator of EVTripPlanner here. I'd like the support the Model X, but the problem is I don't have a reliable source of data to figure out how much energy it consumes under various conditions. It would really help me out if you could download a program which would send data about your car (position, speed, energy usage, etc), so that I could use that data to create an algorithm for the Model X. For the full details and a link to download the program, go to EV Trip Planner
     
    • Like x 4
    • Love x 2
  10. MattXowner

    MattXowner Member

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    Apr 23, 2016
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    Scottsdale, AZ
    Please everyone download and use Ben's software. His site is an amazing resource to plan trips, make multiple stops, etc and he needs data from current X drivers to be able to include reliable data on the SUV.

    Join your fellow Xers and download and install today.
     
  11. gfb107

    gfb107 Member

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    Cary, NC
    I agree in principle, but Ben really needs to put in a little work to make the Tracker usable by non-programmers. See EV Trip PLanner and Model X
     

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