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I dislike the term "hypermiler" because that implies some unsafe practices. Mostly I've just had a lot of practice in effective driving.Well done ... are you a Hypermiler?
Energy-efficient driving - Wikipedia
I dislike the term "hypermiler" because that implies some unsafe practices. Mostly I've just had a lot of practice in effective driving.
1. Keep tire pressures and alignment up to snuff. Choose energy efficient tires.Care to share some tips with the members of TMC?
What does that translate to in percent of rated miles? Most people use more rated miles than actual miles. I am assuming you beat rated miles by a significant margin.
Rated range, based on the assumption that there are 76 kWh of usable energy in an 85 battery and rated range is 265 miles, that works out to ~287 Wh/mi. If you assume 81 kWh, then it works out to 305 Wh/mi. If you meticulous and use a wall metre to measure the electricity used, you'll get a different number for the energy used. Of course, that would only apply to home charging. If you're like me and about half of the miles are trip miles, then a wall metre won't be precise either.What does that translate to in percent of rated miles? Most people use more rated miles than actual miles. I am assuming you beat rated miles by a significant margin.
Those are assumed values, but I am curious what the actual number is for your car. In other words, at the end of the day, if you have travelled 100 actual miles at your average of 246 Wh/mi, how many rated miles have you used?Rated range, based on the assumption that there are 76 kWh of usable energy in an 85 battery and rated range is 265 miles, that works out to ~287 Wh/mi. If you assume 81 kWh, then it works out to 305 Wh/mi. If you meticulous and use a wall metre to measure the electricity used, you'll get a different number for the energy used. Of course, that would only apply to home charging. If you're like me and about half of the miles are trip miles, then a wall metre won't be precise either.
No idea. I don't keep track of that. The problem here is that an average is only an average and isn't applicable to any given trip. The best way I've heard this expressed is that if your head is in an oven and your feet are in the freezer, on average you should be comfortable (Okay, I've heard it stated somewhat differently, but, you know, family forum. Driving against a 30 km/h headwind--think I-70 heading west--will throw the average into the wastebasket, which is why I don't think it's useful to use the average for anything other than historical information.Those are assumed values, but I am curious what the actual number is for your car. In other words, at the end of the day, if you have travelled 100 actual miles at your average of 246 Wh/mi, how many rated miles have you used?
So I take it you have never calculated your usable KWh available in your battery? That calculation should be independent of any particular trip since it is based on battery capacity and not related to driving style. Also, what is your 100% rated miles now?No idea. I don't keep track of that. The problem here is that an average is only an average and isn't applicable to any given trip. The best way I've heard this expressed is that if your head is in an oven and your feet are in the freezer, on average you should be comfortable (Okay, I've heard it stated somewhat differently, but, you know, family forum. Driving against a 30 km/h headwind--think I-70 heading west--will throw the average into the wastebasket, which is why I don't think it's useful to use the average for anything other than historical information.
I only ever used rated miles as a general indication of what's left and combined that with the projected range. As long as projected range was higher than rated range, and the difference between them was not decreasing, all was well--and now with the trip graph I don't even bother with that.
Calculating usable KWh is a bit of a trick for a couple of reasons. First, anytime you put the car in park, there is a chance that it is 'off the clock' for recording W-hour use, and accordingly, some watt-hours will slip by, undetected in either vampire drain (what I think is going into the 12 V battery to keep the CPU humming) or HVAC to keep the car cool. Secondly, you have to be brave and/or resourceful enough to drive the car down to 0 RM, and hopefully, have some unaccounted-for cushion, to wheel you the last mile to a NEMA 5-15 outlet or get towed.So I take it you have never calculated your usable KWh available in your battery? That calculation should be independent of any particular trip since it is based on battery capacity and not related to driving style. Also, what is your 100% rated miles now?
So I take it you have never calculated your usable KWh available in your battery? That calculation should be independent of any particular trip since it is based on battery capacity and not related to driving style. Also, what is your 100% rated miles now?
That sounds about right for a new car with a new (to Tesla) driver--unless you have had a lot of practice driving efficiently with other cars. Short trips with lots of stops are not good for Wh/mi. Cold weather makes it worse. Just keep the tire pressures up and the alignment good, and practice. Note that new tires don't give their best rolling resistance until a couple of thousand miles have been put on.What should I be getting on an S100D? My first 1200 miles are at 345kW/mi according to the trip gauge.
When I use the built in trip planner, I always end up lower than the initial estimate line.
I do have lots of short trips. ~5 miles. 60 mph. Stop lights every mile. Trips about an hour apart.
I try to accelerate slowly, etc. But, well...
Over a few thousand miles of road trips I've recorded the kWh used as reported on the trip meter and the rated miles consumed as reported on the dash. Over the last 2,000 miles the consumption was 273Wh/rated mile.So I take it you have never calculated your usable KWh available in your battery? That calculation should be independent of any particular trip since it is based on battery capacity and not related to driving style. Also, what is your 100% rated miles now?
I've enjoyed being able to keep an eye on my lifetime average energy use, as I haven't ever reset Trip B. After one month of ownership in California and around 1500 miles my average is 326Wh/mi. How are you faring?
I'd love to see a future firmware update that lets me use my trip meters for trips, but still provides access to my lifetime average. I'd also appreciate an automatic trip meter (one that resets when you exit the vehicle), and a per-driver meter.