GetOffYourGas
Well-known member
NavyCuda said:Though if they really wanted to chase efficiency they'd go back to drum brakes...
Please don't give them too many ideas. I don't want a heavy EV that relies on the stopping power of drum brakes.
NavyCuda said:Though if they really wanted to chase efficiency they'd go back to drum brakes...
NavyCuda said:I don't think there is much more room for efficiency gains in the motor itself. Electric motors have been around for over a century and the behavior of electricity is much more predictable than a combustion event.
On the Battery management and inverter side I don't think we'll see much more either.
I am surprised however that Nissan didn't use a planetary gearset for the gear reduction, as planetary gearsets have the least parasitic losses.
Though if they really wanted to chase efficiency they'd go back to drum brakes...
NeilBlanchard said:Recently, someone reported on a improved motor design that increased the efficiency by about 4.4% - which is a lot considering it was already probably at about 92-94%.
This one, I imagine, although it's a concept rather than a product:lorenfb said:NeilBlanchard said:Recently, someone reported on a improved motor design that increased the efficiency by about 4.4% - which is a lot considering it was already probably at about 92-94%.
Link/reference, please.
http://www.greencarreports.com/news/1111340_better-electric-motors-can-boost-electric-car-efficiencyBetter electric motors can boost electric-car efficiency
OrientExpress said:The efficiency number that I look for is the miles per kWh. On average every BEV out there today is in the 4.5 mile/kWh range, from Nissan to Tesla. Of course, there will always be Hypermilers that get significantly better mileage, but on average the number is in the 4~4.5 mile range.
https://speakev.com/threads/real-world-range-of-ioniq-ev.28633/page-4This may not exactly be real world, but...
Last Sunday someone from Germany drove in his Ioniq EV all day and set a record range of 400 km (249 miles)!
Efficiency was 6.6 kWh/100km or 15.2 km/kWh (10.6 kWh/100mi or 9.4 mi/kWh).
DNAinaGoodWay said:My favorites:
jdcbomb said:Those two pics are pretty good. Anyone have access to the Facebook group to post more pics here? I seem to not be able to see any of them or have no way to "join" that group.
Very interesting, if correct:Reddy said:
...Based on the charging stats, I believe the car has a 50-60 kWh battery. As a side note, the gen2 car seems rather large compared to the gen1 car, I believe the wheelbase is about 10-12" longer...
The Model S is a big car; it's not surprising that 400 Wh/mi is considered "average". When I first got ours, that's about what I was getting. Now that I've grown into the car I regularly get under 300 Wh/mi for local driving. What's funny is that when use it for commuting (once a week or so), I get 250 Wh/mi (4 mi/kWH) on the way home, which is just a bit worse than the 4.3 mi/kWh (233 Wh/mi) what I get in the LEAF (which I commute in the rest of the time).dhanson865 said:You must not spend much time on the Tesla forums (teslamotorsclub.com). They talk about (333 wh/m) 3 miles per kWh like it's good efficiency. You talk to them about (250 wh/m) 4 miles per kWh and they'll look at you like you are crazy.
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