Air conditioning and touchscreens didn’t alter how cars drove but did revolutionize the driving experience.
Can we please make touchscreens for neccessary functionality illegal, like using phones while driving?
Yeah, buttons can be found without looking.
They also provide tactile feedback allowing you to be sure they have been pressed without even looking.
My parents’ Lexus has a button joystick kind of thing with similar resistance tech to the ps5 triggers for the navigation. It’s not bad.
The joystick is on the center console, so you can use it without looking.
How do you see what the joystick is pointing at without looking at the screen it’s controlling.
Radio volume, climate controls, and drive/transmission controls are all necessary for safe operation and should be able to be used without taking eyes off the road if needed. There should be federal mandates to keep those controls off of gaze required touch screens. (I’m looking at you VW, of which I own 3 classic examples, but would never consider a current gen one).
I think it’s just for changing inputs and radio, not climate, definitely not volume or transmission. You do need to look at the screen though.
THE reason i got a Mazda, after many years of Mercedes and BMW…
I feel like not enough people realize how amazingly simple and tactile the rotating dial is for doing anything in a car. And especially the placement being down by your arm makes it so easy. I can feel where all those buttons are without taking my eyes off the road.
Also make them illegal in aircraft! And spacecraft! Seriously stupid.
I vote for cheap PlayStation controllers.
Weren’t they using an Xbox controller for that Titan sub?
It was a Logitech F710.
Should have used a madcatz controller, then they would have had a turbo button.
No it was a PC controller in the form factor of a PlayStation controller
I suppose the advantage on aircraft and spacecraft is that they consolidate functions so you don’t have to have 90,000 switches in the cockpit, half of which you won’t ever need.
Anything you need to find in an emergency absolutely should be a physical switch but anything else can probably be a UI interface.
But in the car you need to keep your eyes on the road at all times, which isn’t so much of a requirement in the air.
If you can consolidate the UI to make it with work with touchscreen, you can make it work with something like Keyboard + trackball mouse and you can get rid of that touchscreen. I know it’s not the same stake situation but have people forgotten how much functionality blackberry had with QWERTY and few more buttons. Shame that the company went out the way it did
I can’t think of a switch you won’t ever need. I think the “sce to aux” story is a good example of when you need it you need it.
Also make them illegal in aircraft
Salty Boeing
So much this, it makes no sense for using a portable phone to be illegal while driving but yet my car stereo can be a full on entertainment system and require me to have zero feedback to change the channel or answer a call.
Or at the very least, do what modern airplane cockpits do and have a trackpad/trackball on the center console.
I’m pretty sure they are for safety critical controls, such as in an aircraft cockpit. In the automotive world, we like to keep it jazzy and smooth, like my romantic life.
They aren’t. Light ircraft now use touchscreens that you are supposed to use while bouncing around. They had a knob for a while but then it seemed touchscreens took over. With the knob you still had to look, it at least you didn’t have to aim at a bouncing spot on the screen.
Oh wow, you guys get the cool stuff too? That must add some much need spice to the humdrum activity of controlling a potentially lethal machine.
Can we have more mechanical posts like this?
No, you need 555 posts about the shit that a billionaire said about stuff he knows nothing about
And then someone saying something about Linux
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On Monday I’m going to tell my boss to fuck off. He isn’t going to blackmail me into doing high quality work with money. Honestly, fuck off.
Be the change you want to see!!
This requires educated users in their professions to read the news and share it to the public for free when not being paid.
A new mechanical motion is a seriously big deal and doesn’t happen often.
Now thar Hyundai has patented it, it will never become popular enough to impact the market and be standardized in more vehicles or change anything, similar to the Wankel engine.
similar to the Wankel engine
Was the Wankel engine really a step forward though? I’m a gearhead who does all his own car maintenance, up to and including engine swaps in the past and retro-modding bigger turbos and aftermarket fuel injection systems into my cars (Datsuns in the latter case). That being said, I only know the very basics about rotary engines. I’ve always admired the Mazda RX’s from afar.
Mazda, who by no means makes a bad gasoline engine, could never get a rotary motor to last well or to have anywhere near decent fuel economy. Also, the rotary design was tried for a while in at least refrigeration compressor applications, where it blew up there a lot more than the other types of compressors as well.
Yea. They have worse efficiency. To get better efficiency from them you would need to run them hotter (afaik), and if you do that they would last even shorter.
It’s great if you want a smaller but still strong engine, but it’s not efficient and those seals are a big problem.
The problem with the rotaries is a result of the technology of the time and funding.
They are inefficient because they lose compressed fuel and air as the seals pass over the holes for the spark plugs, which can be largely solved with laser ignition. They are less reliable because of the design of the apex seals, which can be solved by using a roller instead of a blade. Both of those major issues with the rotary could not be solved with the technology of the 60s-00s and the tiny budget available. There are other issues that hold back the design, but those come down to metallurgy and manufacturing processes. Mazda did a great job trying to make the rotary work and it almost killed them.
The other issue that gives then an unreliable reputation is because you can’t treat them like a piston engine and people treat them like a piston engine. Hard to fault the knife for breaking when it was used as a pry bar.
The argument is, though I’m not qualified to assess it, that Wankel engines are simpler, smaller, more power dense and, if allowed time to develop, would be an improvement on the traditional ICE. It’s very difficult to assess where we would have ended up and a little by the by, given we need to move away from burning fossil fuel.
That said, do check out LiquidPiston’s evolution of the Wankel engine. It does sort of look like they’ve solved a number of issues a traditional Wankel engine has.
if allowed time to develop
The basic problem with Wankels is that the geometry of the combustion chamber (such as it is) is constantly changing, which inevitably results in incomplete combustion compared to traditional ICEs. This leads to lowered fuel efficiency and greater emissions; the emissions problem is solved with an additional combustion chamber for the exhaust gases, but this consumes more fuel and lowers efficiency even more. It’s just a fundamental problem with the technology that no amount of development could ever fix.
It still has corners that need to have a moving seal. This is a huge issue.
But capitalism creates innovation!!!
Some people argue that intellectual property law is not free market capitalism, and is instead a regulation that benefits big business. I’m one of those people
While I’d agree in essence, in practice I don’t. They’re an offshoot of capitalism. The goal of capitalism is profit, and if you can create barriers to competition, that protects your profit. IP law is something created out of capitalism as a barrier. If it isn’t the government doing it, it’d be goons hired by those in power. They exist because of capitalism, not from something external to it. If the system were focused on doing good or creating utility, IP law wouldn’t be required.
Free market and capitalism are mutually exclusive as in the theoretical model that is the free market, with perfectly rational actors and information, a capitalist class cannot exist, they’d quickly get competed down to size.
Unregulated markets and capitalism, now that’s a lovechild, as without regulation real-world markets quickly turn into monopolistic shark-tanks instead of free markets, actors not being rational, information not being perfect and all. The role of regulation, indeed the state, is to correct for that factor and make the real-world market approximate the free market.
(This view of the world brought to you by ordoliberalism, the only sane liberal economic theory there ever was or probably will be – because they actually managed to side with the free market, and not capitalism, as the rest of them).
And regulations restrict both.
Cars should be able to pollute as much as the manufacturers want because innovation is all!
“Probably failed cuz they called it the wanker engine lmao. Now set aside another few milli for the copyright lawyers”
Indeed, nothing that is patented ever makes it to market…
Did none of you watch the video? The article is crap, but the video explains it well.
Go back and watch the video, ya old codgers!
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I watched the video, but burying a good video under a trash article does not a good sauce make. OP should have just linked the fucking video.
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One thing I took from the article is they’re trying to sale the idea of having MORE space in a car due to smaller transmission system. In 1 presentation, they show the idea of putting a FUCKING DOUBLE BED IN THE CAR!
I DON’T want MORE space in the SAME sized cars.
I want the SAME space but in SMALLER sized cars.
The space we have now is FINE, and the car sizes are TOO BIG.
STOP MAKING BIGGER CARS!
If we could get standardized and interoperable electric car parts, that’d be great.
Imagine that XKCD competing standards comic here
trying to sell* the idea
You’re complaining like this doesn’t also mean the same space in smaller cars. Improvement is improvement.
They have taken us for fools
What a badly written article, wrongly explaining both the diff and the CV joint. That’s not what they do or how they work.
Yeah, skimmed and saw one of his other articles praising the cybertruck and realized this likely wasn’t a source worth absorbing.
Seems really cool. I will definitely not buy the first model vehicle to use this, though.
Surprisingly easy to understand video for a complex concept.
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It is made by Hyundai, I wouldn’t touch anything close to cutting edge they make.
I can already see this tech holding a yard sale on the freeway after a pothole.
After owning a Hyundai I won’t touch anything made by Ford or Chevy again. This car has had literally nothing wrong with it for over 70k miles. Except routine maintenance like brakes, oil changes, air filter and tires.
I worked in automotive for years. Hyundai/Kia fail spectacularly in ways no modern car should. Randomly catching fire to the point you are advised to not park inside, engines destroying themselves due to a manufacturing/design error they lied about, a faulty design in the transmission control unit that causes forward and reverse to invert should there be a short in the tail light, thousands of dollars in damage or engine loss due to a failure of a $0.50 motor that is not weatherproofed, among other things.
After the Theta II engines starting blowing up they came out with their 100k mile warranty. That is not a sign of confidence in their product, that is a confidence-man tactic.
The explaination of how differentials work was painfully wrong. An I lost confidence in this author’s ability to explain the topic.
Ok. Care to elaborate, please?
Apparently I can watch that video every couple months and still be equally amazed by it.
Please remind me to watch this again in a few months, it’s super cool.Right?
I’m continually blown away at what 19th-century engineers understood and could do.
I knew exactly which video that would be. Such a perfectly clear explanation.
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Perfecter
Perfect
That was awesome and perfectly explanatory. I learned something new today
There’s a bunch of old training vids like that on YouTube. Lots of people could learn how to present from them - they’re so much better than most stuff on YouTube.
There are a lot of these from back in the couple of decades after WWII when society actually cared about science and knowledge and companies used the spreading of knowledge as a selling point.
https://upload.wikimedia.org/wikipedia/commons/3/3e/Around_the_Corner_(1937)_24fps_selection.webm
Wiki to the rescue!
It’s a great video from 1937.How the automobile differential allows a vehicle to turn a corner while keeping the wheels from skidding. Reverse telecine & introduction edited out.
And the article has info as well https://en.m.wikipedia.org/wiki/Differential_(mechanical_device)
Modern cars have “traction control”, which detects when a wheel turns more than the other wheel. If it turns too much more, it will engage a “diff lock” and lock the differential which makes each wheel turn with the same power/speed/energy as if the differential was just a solid axle.
The long & the short of it is that a differential is only “1 wheel drive” when the differential “thinks” (it’s not smart) it should put all the power into 1 wheel - which is when the cars computer locks the differential.
That’s only some cars.
Many today still use open diffs. Some use open diffs and braking to produce a result that looks like traction control or a torque biasing diff.
Some cars use electronically-controlled diffs that can vary pressure on clutches using simple electric servos to bias torque - Bendix is a big supplier of such things to companies like Honda.
Others use hydraulics, similar to torque converters, to bias torque (e.g. Audi’s original Quattro system).
And others use gearing to bias torque, such as Quaife differentials.
Factory systems (with rare exceptions) don’t use locking diffs (GM has one as an option, others may).
Please forgive my laziness - https://chat.openai.com/share/45e326f5-1653-4c51-b057-b36326963559
Came here to say this.
It was sooooo wrong. Painful is right.
The one thing they don’t really talk about is how it turns. The animations show vertical movement almost exclusively. At one point in the video there is a far shot showing a car turning and it looks like they actually swivel the entire motor to keep it perpendicular to the wheel which if true is going to pretty heavily limit it’s turning angle and radius.
The front wheels show CV-looking boots at 4:20 and 5:10. Even the rear wheels will likely need cv joints. Independent suspensions change camber with that coroner’s ride height to improve traction. That’s why when a car is overloaded, the wheels look like /—\ and when it’s on a lift, the wheels go -–/ (to varying degrees).
While there is some kind of boot shown the entire selling point of this thing was that it’s supposed to eliminate the need for CV joints. At that same 5:10 mark or there about you can also see the shot that appears to show the motors being pivoted to turn the wheel. I suspect these are not CV joints although they are joints most likely for camber adjustment as you point out, probably something like a universal joint.
A U-joint has worse modulation between input and output than a CV joint. However, I did look again at the video as big as I could and you are right, the motors are pivoting. It seems to only pivot a partial amount and still at an angle to the wheel. Something is still being glossed over.
Not a problem in RWD applications.
The whole pitch was based on replacing CV joints on front wheel drive vehicles.
From the presentation it looks limiting and to be honest it looks a bit overly complicated and likely to have some massive early growing pains. CV joints are comparatively simple and this is supposed to be more reliable? That’s not how it works.
There’s still CV-joints there in the video despite the uniwheel. You can’t turn the wheels without one. I’m probably just not understanding this but seems like instead of making the drivetrain more simple this just adds more moving parts that’s going to need oil changes and replacing.
Always need a flexible joint such as CV or Universals to compensate for suspension movement. And they work in pairs, because +angular change is compensated by - angular change of opposite end of shaft.
Even if it was only useful at the rear, it would allow the battery to be moved further back and produce a better weight distribution. Most cars are front-heavy.
My guess is they will only put this on rear-wheel-drive cars. The system doesn’t look like it can rotate at all on that horizontal plane and moving the entire motor (that is sticking out of the back of the wheel) is basically a non-starter.
Edit, it may be possible to add another gear-set to enable rotation on the horizontal plane. But at that point I’m starting to wonder if the entire system is getting too complicated.
Like a CV joint? They kinda made a point in how great it was to get rid of the CV joint only to need to put it back in to get steering.
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Ok but then torque changes when you turn the wheel. Hopefully the effects are too slight to matter
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I think they’re getting at the fact this design would generate massive amounts of torque steer. With the motor input vertical, any rotation will also try and change your steering direction.
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If you’re gonna go through all this trouble, why not put motors directly into the wheels? Then you can bypass the drivetrain all together and directly power the wheels.
If you put the motor in the wheel you increase the unsuspended mass. Bad for handling and ride quality
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4 motors is more expensive than 1 motor and a bunch of gears
Do really need need 4?
If you cant get by on 2, you might have less power, but you can get better efficiency. With better efficiency you can have a smaller battery for the same range and reduce some of your increased cost that way.
And also, if one of the wheel motors breaks down will the inevitably obtuse software of the car allow me to drive on three wheels, or will it sit idle until a certified technician arrives and inputs a service code?
We both know the answer to that question. And boy howdy am I stoked for cars to get fully enshittified where you have to have a yearly subscription for the software that allows your tires to move, otherwise you functionally just bought a 45,000 dollar paperweight.
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Not a new idea, military trucks used reduction gear drives in the wheels before WWII. Edit: Portal Gears.
One downside to doing this is adding unsprung weight, which is not a good idea.
And it will still need a CV at the wheel to accommodate suspension travel.
You’re right on unsprung weight, this is going to add quite a bit, especially if you fill the thing with oil.
Not sure how you still need a CV though, as this performs that function. Watch the video, there’s a good animation. Basically this is a reduction gear and CV joint in one unit.
Camber. It allows the wheels to tilt allowing them to keep their entire tread on the ground when only one side of the vehicles suspension is compressed, like during a turn.
Ah Good point, I had not considered camber. As it stands this looks like it would probably not be compatible with much camber flex if any.
Also need them to steer the car
I don’t understand how they are going to keep dust and dirt out of it. The point where the drive input goes in has so much movement.
It will have a boot or case on it and will be filled with grease. Just like a cv joint or ball joint.
Then how is it an improvement?
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I cannot think of a car company I’d trust less to do this than Hyundai/Kia.
Somebody better tell them
Hyundai/Kia owners have, in large numbers, told Kia Group about quality issues their cars have. Their usual response is to gaslight everyone until some government agency sues.
No I mean someone better tell them to stop development on the uni wheel because you disapprove
Somebody had* better tell them
Article made it sound like only front wheel drive exists now and that only front wheel drive cars use CV joints lol.
