My son has a long range Model 3 and I have a Kona EV. In the summer, I was seeing as much 515 kms range with a full battery, while he was topping out at 525 kms. BUT my Kona would consistently beat its range (more kms driven than range used), while his was the opposite. However, we have not gone on a trip with both cars together, so can't say for sure which has longer range. And as we know there are a lot of factors that affect range (city vs hwy, temps, aggressive driving, etc).2nd place and only 15km less than a Model 3 long range! It makes me wonder if a Kona could have beat the Model 3?
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I charged mine up to 100% yesterday in preparation for a long drive.
It was delightful to see 306 miles on the console! Went to Davis and back from the South Bay. No problem. About 75 miles left when I made it home.
I had charged up at work. Interestingly, during the 5-6 mile drive home that night, it only ticked down to 305. Overcharging, or unreliable voltage --> SOC calibration near the top end of the battery? Thoughts?
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Think about how much carbon the nation would not burn f the national speed limit was 55. Would that really change most people's lives that much?
I find adaptive cruise control is not the most efficient. I think it accelerates and brakes more aggressively than I do. I tend to use it in stop and go traffic where it made life surprisingly easier. I was driving around 65 on the way up to be sure we would be on time, and maybe 55-65 on the way back.
I have done some experimenting with ICE vehicles, and the mileage difference between say 70 mph and 55 mph is HUGE. I think it was in a Sonata where it made the difference between something like 35 mpg and 50 mpg. Drag force is exponential in velocity, so not super surprising but still startling to see.
So, thinking about a drive to Davis being 110 miles, I can drive it at 55 in two hours or at seventy in 1:35. . That gets to be noteworthy, 50 minutes saved in a one day round trip. Maybe that is worth it to me, maybe not....but if I am driving to someone's home in SF, it is maybe a 50 minutes drive, perhaps 30 miles of that on the highway each way. Now the difference between going 70 and 55 is going to save me a total of 15 minutes over the round trip . What's the point of rushing?
Think about how much carbon the nation would not burn f the national speed limit was 55. Would that really change most people's lives that much?
Rural midwest drivers would not be appreciative of 55 mph even in the right lane on the highway. You had better have your 4 ways on and be towing livestock or breaking down because otherwise no one is going to have the patience to tolerate you impeding the flow of 70mph traffic.Well, most of my experimentation has been in ICE vehicles, not the Niro. Frankly, around here it is more likely 55 is a top speed.
Since air drag is scales with velocity squared and rolling resistance appears to be quite low with these vehicles, I am suprised you are averaging 5mi/kwh at 70 mph. I will try kicking in adaptive CC and see what happens.
As for aggressive drivers, I find the far right lane is often going sub 55 in the Bay Area. Too many exits, I suppose.
5 mi/kwh at 70 mph is impossible in even the worlds most efficient and aerodynamic freeway EV unless you have assist from gravity, wind, or an incorrectly reporting speedometer (always use real GPS speed). See this data for real-world Tesla Model 3 RWD measurements during Summer. As you can see their data shows 4.58 mi/kwh at 65 mph. 70 mph would be worse, especially in a much less aerodynamic boxy car like the Niro.
One-off reports on forums or youtube are not statistically relevant due to many variables and errors. Unfortunately, I don't know of a large enough sample size for the Niro or Kona to be useful. The next best substitute would be something like the Chevy Bolt. It has similar enough form factor and close enough EPA rated efficiency to the Niro. You can see some data for that vehicle here. ~3.92 miles/kwh at 65 mph. Highway speeds around here are closer to 75 mph. At those speeds I see about 3.8 miles/kwh but it's just one sample point so not useful to drawing any real conclusions. My Niro does not have the battery heater or heatpump but I doubt those make much difference to warm temperature efficiency.
While this might be a dash picture,
Your energy consumption seems to be similar to mine (I drive in the same area). When I drive at freeway speeds, I get around 3.4 - 3.8 miles/kwh, depending on elevation change and speed. In my experience, going 55 mph vs 70 is only a difference of maybe 0.1 or 0.2 miles/kwh. I don't think it's worth it unless you're forced to.The bottom line is there is no way I will hit 300 miles on a single charge at using ACC set to 70 mph, though these averages do take me close to the official range of 240 miles on a full charge.
Next opportunity I will try some drives at 55 mph on the same routes routes using ACC, and then do a manual comparison at about those same speeds.