Electric Vehicles

[ponderingturtle]

The Model T, like many tractors, approximates one pedal driving because although it has a hand throttle, it has enough torque that you don't have to feather it to take off. A tractor is generally set to a given engine speed for the PTO, and you choose the gear for traveling speed. Modern tractors with automatic transmissions come even closer, since road speed is governed by the pedals (one forward, one reverse), and braking is rarely needed.

One pedal driving should be pretty simple on a vehicle that does not idle, has no clutch, and needs no transmission. Or one lever, which ought to be a real boon to handicapped drivers.

Makes me think it is kind of weird that my Prius with a continuously variable transmission and an engine that turns off when not needed to power something does not function in this way. Likely legacy in how they thought the controls should work.

 

[Fast Eddie B]

According to the car documentation, the brake lights will come on once the regenerative braking exceeds a certain threshold. The retarding force of the engine in "Regen" mode seems considerable so I'm not sure you'd need to use the brakes in anything other than an emergency stop situation.

In our Tesla you can see the brake lights come on on the car’s display when slowing with one pedal deceleration.

One can drive for extended periods without ever needing to move to the brake pedal. But it can be necessary in non-emergency situations, such as deciding to stop for a yellow light when near an intersection. I don’t think the brakes ever come into play until almost at a full stop, when a “Brake Hold” icon illuminates on the screen.

 

[JoeMorgue]

One-pedal driving is how cars should have been from day one

That's insane. Nobody wants to stop at the same speed for a stoplight AND a child running into the road in front of them.

You can't "slam" on your brakes if there is no brake peddle. I can't take my foot off the gas with more gusto in one situation versa another.

 

[Fast Eddie B]

Perhaps illustrative, our 6-week-old Model 3 Tesla was involved in a hit-and-run.

https://youtu.be/KuUiR43ni8U

I’m pretty sure I did not use the brakes to stop for the light. That hesitancy to do so carried us a bit beyond the stop line, though still clear of the intersection. In retrospect a good thing - had we been back at the stop line, the impact would have been more nearly head on. But you can see the deceleration with one pedal driving is pretty substantial. And in the side view you can see the brake lights clearly illuminating.

As an aside, the side camera caught the offender’s tag well enough that we tracked him down and go to court in a couple weeks.

The fellow was dumb enough to post his vehicle damage on Facebook!

And a few hours before he posted a selfie of himself and his “homey” saying how “lit” they were!

 

[Filippo Lippi]

That's insane. Nobody wants to stop at the same speed for a stoplight AND a child running into the road in front of them.



You can't "slam" on your brakes if there is no brake peddle. I can't take my foot off the gas with more gusto in one situation versa another.

As pointed out up thread, numerous times, one-pedal driving doesn't mean there's one pedal. If a child steps out in front of me I will slam on the brakes, but the car will have already sensed the child and done the same faster than I, or any human can

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[Fast Eddie B]

I can't take my foot off the gas with more gusto in one situation versa another.

Of course you can. And ditto what Fillippo just posted.

 

[JoeMorgue]

Yeah I get that, but it sounds (to me anyway) like people are saying there should be only one pedal.

 

[gnome]

As pointed out up thread, numerous times, one-pedal driving doesn't mean there's one pedal. If a child steps out in front of me I will slam on the brakes, but the car will have already sensed the child and done the same faster than I, or any human can

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That's the key piece I was missing! So is it set up that there IS a separate brake pedal, but that it is almost never needed?

 

[The Don]

Yeah but it sounds (to me anyway) like people are saying there should be only one pedal.

Then IMO you have misunderstood - one pedal driving doesn't mean that there is only one pedal but that you can drive almost all the time using a single pedal.

There is still a brake pedal for emergency use, though as Filippo Lippi says, many cars may already have taken action.

 

[Filippo Lippi]

That's the key piece I was missing! So is it set up that there IS a separate brake pedal, but that it is almost never needed?

Yes, I can drive certain routes in my Leaf, with junctions, roundabouts, places where I have to stop, and never use the conventional brake pedal.


To complicate matters, the Leaf can only regen 50kw (please correct units if I have them incorrect again) max, so will start mixing in conventional braking at times and, I understand, stopping the car is always done with the discs, not the regen.

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[jadebox]

With one-pedal driving, you are still doing what you have learned to do ... Press the accelerator to go faster, release the accelerator to slow down, and press the brake if needed.

But, with one-pedal operation, your not doing as much of that. You don't have to vary how much you press the accelerator as often to keep a constant speed and you don't need to press the brake pedal as often.

Adjusting to one-pedal driving is easy.

It is a little harder to switch back to non-one-pedal-driving because the vehicle doesn't slow down as expected. But, even that isn't too difficult because you naturally use the brake pedal if the car isn't slowing as quickly as you want.

 

[jadebox]

Last night my wife and I picked up a pizza at a carryout place and ate while listening to an audiobook with the car plugged into a free charger in the parking lot. Then we drove across the street and got some ice cream for dessert. We ate the desserts while listening to the story and charging for free in the Dairy Queen parking lot.

They were just Level 2 chargers, so they didn't add a lot of charge. But, my car had a few more miles of range in it when we got home than it had when we left.

Since I am working from home right now, I could probably schedule all of my shopping and eating out around local free chargers and never have to pay to keep my car charged!

 

[Dr. Keith]

Perhaps illustrative, our 6-week-old Model 3 Tesla was involved in a hit-and-run.

https://youtu.be/KuUiR43ni8U

I’m pretty sure I did not use the brakes to stop for the light. That hesitancy to do so carried us a bit beyond the stop line, though still clear of the intersection. In retrospect a good thing - had we been back at the stop line, the impact would have been more nearly head on. But you can see the deceleration with one pedal driving is pretty substantial. And in the side view you can see the brake lights clearly illuminating.

As an aside, the side camera caught the offender’s tag well enough that we tracked him down and go to court in a couple weeks.

The fellow was dumb enough to post his vehicle damage on Facebook!

[qimg]https://live.staticflickr.com/65535/51968875363_ff1914d1d9_z.jpg[/qimg]

And a few hours before he posted a selfie of himself and his “homey” saying how “lit” they were!

I do like the video surveillance aspect of owning a Tesla.

Also like your musical choices.

 

[Shalamar]

Perhaps illustrative, our 6-week-old Model 3 Tesla was involved in a hit-and-run.

https://youtu.be/KuUiR43ni8U

I’m pretty sure I did not use the brakes to stop for the light. That hesitancy to do so carried us a bit beyond the stop line, though still clear of the intersection. In retrospect a good thing - had we been back at the stop line, the impact would have been more nearly head on. But you can see the deceleration with one pedal driving is pretty substantial. And in the side view you can see the brake lights clearly illuminating.

As an aside, the side camera caught the offender’s tag well enough that we tracked him down and go to court in a couple weeks.

The fellow was dumb enough to post his vehicle damage on Facebook!

[qimg]https://live.staticflickr.com/65535/51968875363_ff1914d1d9_z.jpg[/qimg]

And a few hours before he posted a selfie of himself and his “homey” saying how “lit” they were!

Send it in to 'Wham Bam Teslacam'!

 

[Fast Eddie B]

Send it in to 'Wham Bam Teslacam'!

Already done!

 

[jadebox]

I do like the video surveillance aspect of owning a Tesla.

Also like your musical choices.

As an aside, I have been considering getting dashcams for our cars. I think seeing all the dashcam videos online has made me a little paranoid.

 

[The Don]

Last night my wife and I picked up a pizza at a carryout place and ate while listening to an audiobook with the car plugged into a free charger in the parking lot. Then we drove across the street and got some ice cream for dessert. We ate the desserts while listening to the story and charging for free in the Dairy Queen parking lot.

They were just Level 2 chargers, so they didn't add a lot of charge. But, my car had a few more miles of range in it when we got home than it had when we left.

Since I am working from home right now, I could probably schedule all of my shopping and eating out around local free chargers and never have to pay to keep my car charged!

Mrs Don managed to get around 5KWh of charge for free at the local supermarket while she did the weekly shop. That's good for about 20 miles, or two trips to the supermarket. Opportunistic charging is where it's at IMO.

 

[Filippo Lippi]

But has it exploded in a fireball yet? They do you, know, electric cars

 

[bruto]

But has it exploded in a fireball yet? They do you, know, electric cars

I would expect electric cars just to kind of smolder, unless you're really lazy about extinguishing. For real aventure, stick to gassers.

Like the time I rolled up to the shop in our then-commissioned 1960 Valiant, and a co-worker came rushing out yelling "Flames! Flames!"

A great moment in child-rearing, when after a little trip to the market with the kids in the rottenest, nastiest 1978 Pontiac ever to stay on the road, my wife asked how it went, and my youngest piped up, "Oh it was fun. The Pontiac caught fire again!"

 

[Filippo Lippi]

Yeah, the fires are much rarer than ICE cars, apparently (about 10%), and your escape time is much greater

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