[redpoint5]

The most fuel efficient way to accelerate which will give you a higher m/kWh which will give you more miles is to pretend there is an egg between the accelerator and your foot. Keeping the energy use light green will also help.
I read on here about people complaining about not getting at least 259 miles on a charge. If they would drive more efficiently, they would easily get that and more. I don’t charge to 100% anymore since I don’t need the distance or miles, but I would see 350 miles when my m/kWh was in the high 5s or higher.

Driving at 1 MPH less top speed would make way more difference from a practical standpoint than slower acceleration. Acceleration rate is somewhere around #50 on the list of things to extend the range of the vehicle.

 

[newboltdriver]

Driving at 1 MPH less top speed would make way more difference from a practical standpoint than slower acceleration. Acceleration rate is somewhere around #50 on the list of things to extend the range of the vehicle.

Sorry, that that was not his question. I answered his question and it’s a fact.

 

[Brad]

The most fuel efficient way to accelerate which will give you a higher m/kWh which will give you more miles is to pretend there is an egg between the accelerator and your foot. Keeping the energy use light green will also help.
I read on here about people complaining about not getting at least 259 miles on a charge. If they would drive more efficiently, they would easily get that and more. I don’t charge to 100% anymore since I don’t need the distance or miles, but I would see 350 miles when my m/kWh was in the high 5s or higher.

That is pretty good. So far I am just getting like 4.3 mpkh

 

[electrons]

They are negligible in real use.

That is true.
I proved it in post #42. With sticky-tire Hankooks ( @OkieBolt ), 0-60mph happens at 0.45g in real life, in 6 seconds.
With Michelin Energy Saver A/S standard rubber, 0-60mph happens at 0.42g in real life, in 6.5 seconds.
Assuming no air drag, and the full 266 ft-lbs (full amps) on the entire run, that equates to 0.47g.

Notice the diff between 0.45g (real life w/sticky-tires) and 0.47g, the "ideal" maximum, is very small, only 0.02g's, meaning air drag losses & anti-spin launch amps limiting are surprisingly small in a Bolt, almost negligible.

On the subject of RxI(^2) losses in the wires, that is big, but brief, so the losses there aren't too bad. Monster amps of 149,000 watts / 350v = 425 amps, wow, that is a lot to square, so Lord help the copper wires. Cooling becomes critical if you're standing on the pedal for too long!

The difference between fun launches & normal sane driving is only single-digit %, as long as not too many hard launches happen, and they're kept brief.

 

[redpoint5]

Sorry, that that was not his question. I answered his question and it’s a fact.

You didn't just answer the question, you added "I read on here about people complaining about not getting at least 259 miles on a charge. If they would drive more efficiently, they would easily get that and more."

Changing acceleration behavior only, and nothing else, will have no practical difference in usable range. I'm not saying it makes no difference, I'm saying that the person concerned with eeking out more range should have already have pulled out all excessive weight from their vehicle, overinflated their tire pressure, blocked off a portion of their grill...

Acceleration behavior isn't going to give miles of extra range. It's going to be measured in hundreds of feet. Not worth backing up traffic in normal operation. More of an heroic effort to see how far the car can go on a charge, or under dire threat of running out of juice.

 

[newboltdriver]

That is pretty good. So far I am just getting like 4.3 mpkh

I used to have a LEAF, but the Bolt is much more efficient. In 2013, I hypermiled a LEAF that only had 94% capacity to 188 miles on one charge, and when finished had over 8 m/kWh. With my Bolt, I can get that going 40 mph on a 13 mile trip.

 

[mrplumislander]

Hi Everyone,

I am wondering what is the most efficient way to accelerate from a stop light. In gas cars, there is such a thing as accelerating too slowly, which results in using more fuel.

Is this the same for electric cars? So, is it better to gun it a little and use 30 kW until you reach your desired speed, or use 12 kw and slowly reach your speed?

One thing to do is slow down before the light and keep the car slowly rolling so you are not stopped when it turns green.

 

[Jax]

An EV uses the exact same amount of energy to accelerate to 60 mph whether it takes a second or a minute according to CleanTechnica.

Probably need to inform my insurance company, that tracks my driving habits for discount purposes, that rapid acceleration is not considered so
detrimental in the Bolt EV.
My driving score has plummeted since most every opportunity I get I love to watch the expression on the fart-can Civic or lifted 4wheel Ram driver that I just left at the stoplight grand prix with my little electric car.
Can't help it.

 

[shrox]

...pretend there is an egg between the accelerator and your foot.

Pretend? Oh, I should have read the post more carefully.

 

[Deant]

Hi Everyone,

I am wondering what is the most efficient way to accelerate from a stop light. In gas cars, there is such a thing as accelerating too slowly, which results in using more fuel.

Is this the same for electric cars? So, is it better to gun it a little and use 30 kW until you reach your desired speed, or use 12 kw and slowly reach your speed?

Put 2kW extra solar on your home and drive any way that makes you happy and guilt free.

 

[shrox]

Put 2kW extra solar on your home and drive any way that makes you happy and guilt free.

That's what we are doing. Starting with 600w off grid for the OEM evse and a few appliances. Wiring it up for more.

 

[Digi]

Pretend? Oh, I should have read the post more carefully.

Not at all what it was cracked up to be was it? Lol

 

[NortonCommando]

An EV uses the exact same amount of energy to accelerate to 60 mph whether it takes a second or a minute according to CleanTechnica.

This statement started the tech talk on this thread. Basic physics.

The most fuel efficient way to accelerate which will give you a higher m/kWh which will give you more miles is to pretend there is an egg between the accelerator and your foot. Keeping the energy use light green will also help.

This is old ICE thinking. ICE cars have a wide range of efficiency. EV's not so much.
The accelerating is just a few seconds of energy use. Cruising uses the most.

In taking 1 min. to get to 60mph a lot of time is spent in the 40-59mph range where wind drag is now a factor.
0-60mph in 7 seconds, and then hit the CC button is efficient in EV's
Similar to how airliners give it helll to get to cruise altitude and speed, then settle in at that speed and fuel burn.
That is the efficient way to get to a destination. EV and airliner.

Now if you really want to pinch those expensive electrons, don't cruise at 60mph or higher.
Try 50mph or 40mph.
At the end of the week you may save enough money to buy a cheap dinner out,,, for one.

 

[NortonCommando]

... In 2013, I hypermiled a LEAF that only had 94% capacity to 188 miles on one charge, and when finished had over 8 m/kWh. ....

Was that the time when the Mennonites in their horse carriages were yelling profanities at you to get on the shoulder of the road while they were passing you?
"Hey Outsider, get your Slow Moving Vehicle triangle if you are going to drive like that!"

 

[Jax]

This statement started the tech talk on this thread. Basic physics.
This is old ICE thinking. ICE cars have a wide range of efficiency. EV's not so much.
The accelerating is just a few seconds of energy use. Cruising uses the most.

In taking 1 min. to get to 60mph a lot of time is spent in the 40-59mph range where wind drag is now a factor.
0-60mph in 7 seconds, and then hit the CC button is efficient in EV's
Similar to how airliners give it helll to get to cruise altitude and speed, then settle in at that speed and fuel burn.
That is the efficient way to get to a destination. EV and airliner.

Now if you really want to pinch those expensive electrons, don't cruise at 60mph or higher.
Try 50mph or 40mph.
At the end of the week you may save enough money to buy a cheap dinner out,,, for one.

I just one-pedal drive just above legal interstate speed without concern for energy usage since range is not a factor in my case (most of the time). I also have the luxury of using ac or heat at will for the same reason. But so far I am still averaging 4 miles per watt overall. .
I now understand seeing $90k performance Tesla's cruising 65 on a 75mph interstate, obviously trying to reach a destination without a charge stop. .So far that has not applied to me. Longest trip 150 miles round trip..

 

[Martin D]

I used to commute everyday driving over highway 17 from Santa Cruz into San Jose. For those unfamiliar it is a steep winding 50 mph 2-lanes-per-direction road climbing to 1000 ft and back down again in about 20 miles.

Everyday the same guy in one of the original Honda Insights is “hypermiling” (crawling) up the grades so slowly that even the semis need to pass him.

The one-finger salutes he also got every day never seemed to phase him. I often wondered how many man-hours of lost time that single person created. Something like 30k drivers commute over that road daily, and the ultimate speed that anyone can go is controlled by the slowest car on the road.

 

[MisterJJ]

Everyday the same guy in one of the original Honda Insights is “hypermiling” (crawling) up the grades so slowly that even the semis need to pass him.

Imagine all the gallons of fuel that were wasted in slowing down and having to accelerate past him on a hill. Say NO to hypermiling!

 

[Martin D]

Imagine all the gallons of fuel that were wasted in slowing down and having to accelerate past him on a hill. Say NO to hypermiling!

It was way worse than that. This guy indirectly caused accidents. And yet there was nothing that could be done about him because 17 doesn’t have a minimum speed limit.

 

[shrox]

It was way worse than that. This guy indirectly caused accidents. And yet there was nothing that could be done about him because 17 doesn’t have a minimum speed limit.

Something can always be done. Impeding traffic, operating a vehicle in such a way as to create a hazard to others, etc. would be possible citations.

 

[Sean Nelson]

Not at all what it was cracked up to be was it? Lol

It was no yolk!
But I think we can beat it!
All we need is a hard-boiled approach!

(with apologies to Dr. Bundolo's Pandemonium Medicine Show).