Xiaomi has launched its first EV. As well as a 800km range, and charging to 500km capacity in 15 minutes, it will share an AI voice-driven OS with the maker's smartphones.
Xiaomi has a great track record with electronics, especially smartphones, so it will be interesting to see if they can bring some of that success to EVs. On paper this looks impressive. Xiaomi has been doing a lot of independent research into autonomous driving. This will launch with impressive abilities, but it's not at Level 4 driving yet.
People seriously need to stop using distance as a measure for charging speeds and battery capacity. It makes no fucking sense and makes it impossible to compare actual charging speeds, battery capacity and efficiency between cars.
On top of that it’d be great for comparison which I imagine is the whole reason for it being presented like this I would rather have 800 km range and get 500 of that in 15 minutes (like if I’m on a long trip) than have 850 total range and only 15 km in 15 minutes
Sure, if it was consistent. But the range varies wildly even on the same car depending on speed and weather conditions. Is it 500km highway or 500km city driving? Is it in the winter or in the summer? Is it on a rainy day? Is there snow? Is there head wind or tail wind? 500km is a completely useless unit for charging speed and battery capacity without comprehensive context.
Thankfully, you're not in marketing for any of the EV companies. You'd wind up bleeding off so much market share to other EV companies who understand that putting Range Anxiety to rest generates more sales for first time EV buyers.
Yeah, and what about mpg on gas cars! or battery life on phones! Or longevity of light bulbs! Or number of prints for ink sources! Or how many miles a tire should last! Or average time to complete a game! Or...
You know what? As long as the measurement is consistently measured between things, the measurements are comparable. A car having X range compared to another car with X range is probably a decent indicator of relative ranges even if it isn't perfect in practice.
Just assume real world ranges are like 80% of whatever is advertised just like mpg estimates.
Yeah, and what about mpg on gas cars! or battery life on phones! Or longevity of light bulbs! Or number of prints for ink sources! Or how many miles a tire should last!
I get where you’re coming from but two of your examples are agreeing with their point.
They’re asking for a better standardization for an electric cars overall efficiency same as ice vehicles using mpg and lightbulbs using number of hours they are expected to last.
By just stating the range of a vehicle they are removing the ability to do a good compare and contrast across all electric vehicle. For example, the electric Hummer has a EPA est. range of 329 miles while CyberTruck has a range 320 miles. By using only range both seem comparable but the Hummer achieves its range with a 212 KWh battery pack vs the CyberTrucks 100 KWh battery pack.
It’s the ICE vehicle equivalent of a car stating that it gets 500 miles per gas tank. Yeah sure the vehicle can go 500 miles between fill ups but if the car only gets 10 miles to the gallon that’s going to be one hell of gas bill.
The solution here is for all EVs to list their battery size and its Miles per Gallon equivalent (mpge) thus allowing buyers to efficiently compare two vehicles no matter battery pack size difference.
I think the point the previous commenter was getting at was that a car that goes twice as far but takes four times as long to charge from ten to eighty is practically far worse than the first one for long journeys, at least so long as the range covers local trips.
The obsession with range also puts a very wasteful pressure on the market to use bigger and bigger batteries, which add to both their cost and environmental impact, most of which may have not get used a few times in the cars life if at all.
If you really want values to compare between EVs, consider picking a range measurement specification (WLTP, NEDC or EPA) and look up the range specified as tested.
EPA is city driving only, so probably ignore that. Most if not all manufacturers give their range in WLTP, so that is somewhat directly comparable: notwithstanding software restrictions, BMS limitations in various weather conditions etc, as these cars are computers at their core and vastly more dynamic compared to a combustion engine.
No mainstream measurement spec may meet your requirements though IMO - may be a better idea for you to pick some EVs to compare, and look at real world accounts from other users. All the range in the world is useless if your EV's computer crashes while charging preventing you from fast charging or operating certain parts of the vehicle, for example
Makes sense. What are you thinking would be better? km/kWh efficiency, kWh capacity, and kWh/h charging rate?
I guess that last one could be kW charging rate. I raised my own eyebrows at myself typing kWh/h.
Then again it's tough to capture a non-linear charge rate in one number. Maybe the press release could come with an asterisk: "*This is the coefficient of a logarithmic function." I'm guessing you have something more sensible in mind like time to X kWh, or time to 80% charge.
Do you think people would stand for the technically-equivalent-and-simplified m/Wh instead of km/kWh? Slaps roof of car "Got a lotta meters in this one!"