The best thing about driving an electric car — it’s not what you think

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The best thing about driving an electric car — it’s not what you think
By Tom Pritchard about 4 hours ago

Say hello to one-pedal driving

There are plenty of reasons to buy an EV. Whether that’s trying to reduce pollution, lower maintenance and fuel costs, or wanting to be able to drive without the roar of an engine following you everywhere you go.

Having owned an EV for several months, a 2019 Nissan Leaf, I can appreciate a lot of those things. But my favorite thing about having an electric car is the fact it offers one-pedal driving. Honestly, I’m not sure how I managed without it for so long.
What is one-pedal driving?
For those readers who are unfamiliar with one-pedal driving, that name is almost completely literal. Activating one-pedal mode means your gas pedal more or less becomes both the accelerator and the brake. Put your foot down and the car goes faster, lift your foot off and it slows down.



Obviously, all cars slow down when you take your foot off the gas, because the laws of motion won’t let them carry on in perpetuity. But letting your car decelerate this way is a fairly slow process, and that’s where the brake pedal would normally come in. It means you don’t roll past that red light and into the oncoming stream of traffic.

1-pedal driving: The best thing about driving an electric car

The Nissan Leaf's e-Pedal button turns on 1-pedal driving. (Image credit: Tom's Guide)

1-pedal driving: The best thing about driving an electric car

(Image credit: Nissan)

Single-pedal driving uses the car’s regenerative braking feature to increase your deceleration when you ease off the gas. It’s not as harsh as using the brakes, but it is still very noticeable. You can even learn to time it right so that you don’t even need to think about using the brake except in an emergency.

I own a 2019 Nissan Leaf, one of the few one-pedal cars, and I absolutely love using the e-Pedal, as Nissan has dubbed it. In the same way that I like driving an automatic because I don’t need to worry about using the clutch, e-Pedal means my right foot barely has to move.



Crucially, the pedal driving doesn’t stop the brake pedal from working, and it can’t replace it completely. If there’s an emergency, the driver still needs to hit the brakes. Having one-pedal driving mode will help speed up your deceleration compared to regular driving, but it’s nowhere near fast enough to bring you to a complete stop in a hurry.

I tested this by lifting my foot completely off the gas at 20 miles per hour, and didn’t stop for a good 10-15 feet. Slamming on the brakes stopped me almost immediately. So if someone runs out into the road, or the car in front decides it needs to stop very quickly, your right foot better be ready to move.

One-pedal driving doesn’t get enough credit

One-pedal driving isn’t particularly common as best as I can tell, though it doesn’t help that automakers tend not to advertise the feature. This includes Tesla, which typically can’t stop hyping all the features its range of cars has to offer.

Nissan’s e-Pedal will work automatically (and quite harshly) to bring you to a complete stop and hold the car in place. Tesla also offers a one-pedal driving mode, one that has been well received down to the fact that it’s able to give drivers significant control over their deceleration.

Cars like the Chevrolet Bolt and Jaguar I-Pace come with one-pedal driving of varying degrees as well, with more recent models able to bring you to a complete stop and hold your car in place.

When it comes to popular and well-known electric cars with one-pedal driving, that’s your lot. Or it is as best as I can tell, and it’s not clear why EV makers haven’t been trying to capitalize on this feature.

1-pedal driving: The best thing about driving an electric car

(Image credit: Tom's Guide)

That may be down to the lack of demand from consumers, or because automakers prefer to keep their electric vehicles as similar to their gas-fuelled counterparts as possible. Obviously, the fact it’s dependent on regenerative braking means you can’t have it in a gas-powered car, so it’s also not the kind of thing a lot of people will even think about.

I had this conversation with my brother who asked how many pedals my car has. Someone he works with (at a car dealership, no less) told him that the Leaf only had one pedal, and my brother wanted to know if that was true. Obviously, it still comes with two, a gas pedal and a brake pedal. Plus a foot-controlled parking brake, but that doesn’t count.

It would be very illegal to sell a car without a brake pedal, both in the U.S. and here in the U.K. But it goes to show that there are people out there who don’t actually know what one-pedal driving is, and those that do might have the complete wrong idea.

Heck, I only knew about it because I went to the 2018 Leaf’s launch event and got to try it out for myself. Go to the Leaf page on Nissan’s website, and the only time e-Pedal is mentioned is a tiny piece of text in the model comparison section. The upcoming Nissan Ariya, which also has e-Pedal, doesn’t even have that mention.

One-pedal driving makes driving more pleasant

It’s a shame it’s not more widespread, because e-Pedal has made driving the Leaf an absolute pleasure. It took some getting used to, but after having driven my car around quite a bit, I’ve managed to get the hang of things.

Knowing when to start easing off the gas, and by how much is basically second nature to me now. It means I can slowly roll to a complete stop, not really worry about where my foot is, and regain whatever tiny bit of power the regenerative brakes can muster.

Plus, e-Pedal doesn’t use the brake pads, which means it’s going to be quite some time before I have to worry about them wearing out.

Of course, e-Pedal has caused me to develop a few bad habits in my driving. There have been times when I forgot to switch e-Pedal on, and it’s taken me a second to realise I’m not slowing down as quickly as I would normally be.

At least the e-Pedal hasn’t made me forget how my brakes work. After almost 15 years of driving that reflex has well and truly made itself home in my brain. I confirmed that earlier this week when some idiot decided to reverse into the street without looking, and ended up right in my path.

I have no intention of switching cars anytime soon, and if my current circumstances are anything to go by, I’m pretty sure I would buy another EV. But it would still be very hard to say goodbye to one-pedal driving. And not just because I’d have to get used to driving without it again. It may not be a huge selling point where cars are concerned, but it is by far the best thing about switching to electric.

So electric automakers take note. This guy wants you to start installing one-pedal driving systems on all your cars. If it’s good enough for Tesla, it should be good enough for you, too.


SOURCE: Tom's Guide
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Crissa

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One pedal driving is less wasteful than an automatic, but it's not particularly efficient.

Another way to look at it, is that it's like driving a manual: When you let off the accelerator, the motor stops spinning and starts braking. It's just like that, except the band of the 'gear' in an electric car is from 0-60 or more.

-Crissa
 
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Another way to look at it, is that it's like driving a manual: When you let off the accelerator, the motor stops spinning and starts braking.
In a manual transmission -in an ICE- the engine does not stop spinning, or "rotating"(RPM) when you let off the accelerator.
 

ajdelange

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I've been driving one pedal now for about a year and a half. As implemented by Tesla it is fantastic (not to say that it isn't great in other OEMs' offerings too). Never touch the brake except in unusual circumstances. It is very efficient to the point that it is responsible for quite a few of those EPA miles on the Monroney sticker especially since they 'blended' it with the friction brake when coming to a complete stop.

The only problem I have with it is when I do have to drive an ICE vehicle. Upon taking one's foot off the accelerator one does not get the expected decceleration which tends to cause me to get a little panicky and wonder what's wrong. This passes quickly.

When you back off the accelerator in an ICE vehicle your engine turns into an air compressor. The energy the system delivers to it is wasted as heat. In a BEV with regen the energy delivered to the "engine" gets, for the most part (90% efficient?), converted back to electric energy which is put back into the battery thus recovering a lot of the load you took out for kinetic and potential energy demands.
 
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TruckElectric

TruckElectric

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When you back off the accelerator in an ICE vehicle your engine turns into an air compressor. The energy the system delivers to it is wasted as heat. In a BEV with regen the energy delivered to the "engine" gets, for the most part (90% efficient?), converted back to electric energy which is put back into the battery thus recovering a lot of the load you took out for kinetic and potential energy demands.
I don't have an EV but I've watched Sandy Munro test drive an EV an forget which brand or make but one had an option for regenerative braking mode. I can't remember if the braking effort made much difference but I would think it would. I just remember Sandy after driving some remembering to put it in regen mode.

Does Tesla have that option?
 


ajdelange

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I can't remember if the braking effort made much difference but I would think it would. I just remember Sandy after driving some remembering to put it in regen mode.

Does Tesla have that option?
My X has the option of Standard or Low. IOW you can't turn it off. This will infuriate some who absolutely hate it but that's because they don't understand what it does for them.

The 'skinny pedal' in a Tesla isn't just an accelerator. It's an accelerator/deccelerator. As you come up to speed you depress it to the point where it maintains the speed you want. The consumption meter will read something like 20 kW. If you depress the pedal further the consumption meter will jump and the car will accelerate. The farther you depress the pedal the higher the consumption goes and the more the car accelerates. If, while sailing along at 20 kW, you release the pedal some the exact opposite happens. The consumption reading decreases and (on level ground) the car slows down. If you back off the pedal further the car will slow more and the consumption drop even further quite possibly going into the negative region (going down hill or coming to a stop at a light). Negative consumption means the battery is being charged. "Feathering" the pedal to control rate of slow down is really just the opposite of pressing it to control acceleration. This may seem strange to people who haven't experienced it but it is quickly learned. And you don't really even need to understand what is happening. You just learn to drive the car that way.
 

Crissa

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In a manual transmission -in an ICE- the engine does not stop spinning, or "rotating"(RPM) when you let off the accelerator.
Neither does the electric motor. But spins slower than you're traveling.

Do I really need to explain engine braking to you?

-Crissa
 

cyberbear

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Neither does the electric motor. But spins slower than you're traveling.

Do I really need to explain engine braking to you?

-Crissa
do the brake lights come on when you start to decelerate using just the gas pedal.(sorry the right pedal)
 

Crissa

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do the brake lights come on when you start to decelerate using just the gas pedal.(sorry the right pedal)
Depends on the model. On my Zero, no. On an Energica, they flash off and on. There's no standard yet.

Some one needs to explain engine braking to you.
In that the motor spins slower and resists the motion being converted to spinning by the wheels?

-Crissa
 
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ajdelange

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do the brake lights come on when you start to decelerate using just the gas pedal.(sorry the right pedal)
In the Tesla's, yes. A car following can't tell whether you are slowing with regen or friction brake.
 

Dirt Worker

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Some one needs to explain engine braking to you.

Look up "Jake Brake" and get back to me. ?
A "Jake" or compression brake reduces exhaust valve travel to create drag and reduce speed. Direct drive or manual transmission driven by motor or engine will turn in correlation with vehicle speed. If traveling down hill, gravity forces forward momentum. Instead of wasting the energy through friction, an electric will recoup as a motor now becomes a generator/alternator. Same reaction when coming to a complete stop. Am I missing anything? Seems we all agree but don't understand each other.
 

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One pedal driving is awesome! You rarely have to touch the brake pedal during normal driving. It’s one of my favorite features next to the turbine smooth electric motors and quiet drivetrain.
 

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Question: do the electric motors that provide thrust to a Tesla also act as dynamos when regenning, or are there separate dynamo motors for recouping energy through braking?
 

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Correct, it's not what **you** think. I can think of many things that are better or best about an EV and one pedal driving doesn't even make the list. Gas stations and everything about them suck. That's my number one by far. Cost per mile, fsd, speed, almost silence, all yes. Using my foot on one pedal instead of two???? Uhh....no
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