0.1kwh/km is a good rule of thumb for being entertained on twisty roads. Avoid highways and this is mostly always achievable. If you need going at 140 km/h average then you use .2 kwh/km, all deducted from the available energy storage.
If it's like this then 0,1 is really really good.
,2 kwh/km at 140 is pretty poor given a Tesla Model 3 would be near the same efficiency... 1,8 tonnes of quite sleek car).
Id like to see a model3 have at it at 200wh/km in 140. .2kwh/km on a model 3 cannot be anything but an average for mixed speed driving. I drive an Hyundai Ionic which at 60-80 roads can go below 110 wh/km (i have achieved this). The first few years, when i drove it like a petrol car, i used around 110 wh/km on average during summer. Now ill average around 130 to 140 wh/km but i drive harder (one pedal driving gets you there faster by the expense of energy and tire wear). However going at 130km/h even the ioniq is above 200 wh/km. I doubt anyone claiming that the model3 is more efficient than the smaller ioniq which also is extremely efficient.
The first year i rode the Zero SR, it reported an average of 66wh/km which is very little. The last year i had it, my average was about 77wh/km reported by the bike. The SS9 reports differently, so it is harder to get a comparable number. Since it mostly averages the last kilometres, and i have either faster or slower stretches that i pass before ending it is harder to tell. When i look at how much i charge, it seems that the difference between the zero and the SS9 is mostly due to me riding faster or using sidebags. I am sure the SS9 uses more, but it is probably within the range of 10% more, so really hard to tell on a single trip. Any way, both use much less per kilometer than the '17 hyundai ioniq.
The SS9 reports the available battery depending on temperature. From what i have seen by commuting to work this spring, my working day of 88km usually landed me with 58% left when temperatures were around 8 degrees when parking, and nowdays when it is up to 20 the bike reports around 62% left during otherwise similar conditions. If i have 18,9kwh available at 20C, this gives me an average consumption of 82wh/km to work with the SS9.
Looking at how much i charge for my daily commute (including all sorts of charging efficiencies), my week day charging session (may be tainted with some extra rides) was in the range of 5,5kwh to 10kwh, mostly around 8.1, steadily decreasing down to 7.4kwh in june (6.4kwh to 8.5kwh). If we use 7.4kwh for 88km as a base for summer consumption commuting to Oslo, that is 84wh/km with a total of 19,4 kw to charge (including charging inefficiencies).
Looking at the charging efficiency, if i have 18.9 kw available when parking at 62% and charge 7.4kwh, this indicates 97% charging efficiency, which likely isnt true. Id guess it is around 90% which gives me some 17.5 kwh available at 20Celcius (which means i probably
may get some more out of the bike. If 17.5 kwh is available to the bike at my 88km run, this indicates a summer consumption of 75wh/km on my daily commute. I think that is a fair assumption for my daily ride. Comparable numbers for the ioniq is about 125 wh/km (as reported by the car) for the same commute, so clearly the bike wins.
So all in all the bike consumption is as a base around 60-70% of that of an efficient car, such as an ioniq, going at mixed road/city speeds (50-90km/h). My guess is that the bike efficiency drops somewhat to the car when going faster, but even a streamlined car does use more at higher speeds, so i doubt the consumptions will intersect even if you are pushing past 140km/h. That however doesnt mean that you at times will get higher number than a car may do at the same speed, since wind conditions affect consumption for any vehicle greatly.
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Topic: Extra-Urban (Read 1979 times)