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by sensanaty·2y ago·view on hn ↗
Teslas don't have physical blinker switches?? That is pure lunacy, are you telling me they're touchscreen activated now?
5 comments
From the article:

> Tesla is probably at greatest risk here, having recently ditched physical stalks that instead move the turn signal functions to haptic buttons on the steering wheel.

That's legitimately insane to me. Plus you don't even get that satisfying clunk of turning the blinkers on.

God the future is turning out so lame...

The main problem is you have no tactile confirmation of the blinker status.

They may have left some blinking icon on on the screen, but you're watching the road and don't see it.

They may have left that confirmation 'click' sound on, but you can't hear it because you can't adjust the music volume :)

Some parts of the future are always lame! But luckily, they can get better if at least one person cares enough to make facilitate the change :)
those 'haptic' buttons are real buttons. with a click feel and everything. they are great (tested in highland model 3)
What people call "real buttons" usually require a certain force and travel to activate. Capacitive buttons require little to no force or feedback, sometimes not even solid contact.

I think the easiest way to understand the difference is to ask 2 questions: "can I put my finger on that button and not immediately trigger it" and "can I can physically tell that I am triggering it (ideally some physical travel)?" If the answers are "yes", then it's probably the kind of button people look for when talking about wanting "real buttons".

Apple has actually combined the two with their touchpads. When you press on them you get the "click" feedback. But its not actually a physical travel that activates, it's what they call "the haptic engine" that vibrates in a way that makes it feel like you've clicked a physical button. It works really well.

However, I think that such buttons are far more expensive than a physically activated button, even if the latter is engineered to last a lifetime of heavy use.

> But its not actually a physical travel that activates

This was the little (to no) feedback of a press I was mentioning. Simulating the absolute bare minimum of travel. With the pressure sensors and the piezoelectric actuators it becomes a super-expensive, overengineered button simulator that works almost as well as the real thing.

Even Apple dropped the fancier 3D touch completely, and the less fancy Force touch is just for trackpads. Everything else is the cheaper Haptic touch doing away with pressure sensors entirely. It was fine for my iPhone 8 home button and old watch.

But a car is different. A hazard light button has ~5mm of travel. Blinker or wiper stalks have centimeters of travel. Same for rotary knobs. They're also well spaced from each other with hard to confuse actuation methods. In noisy and vibration prone environments, with time sensitive requirements, you want to have very clear and distinct ways to act and receive feedback that actions were performed, especially if critical for safety.

I do not disagree with you. I was pointing our that there is a certain class of physical buttons we can replace with an "emulation" that works just as well. That is not to say we should.
The parent commenter was making the point that the particular buttons on the latest Model 3 (Highland) actually feel almost like physical buttons. They require pressure and won’t activate just by being brushed against.

Still, as blinker controls they don’t have tactile markings and a stalk would be much better.

> feel almost like physical buttons

You're correct. But I was addressing GP's wording (emphasis mine):

> those 'haptic' buttons are real buttons

I was making the point that it's not a "real button" if, as you also say, it just "almost like" a real button. Knowing the M3 buttons, that "almost" is doing a lot of heavy lifting. Press a classic hazard lights button, and a Tesla signal button and see if they really feel similar. No need to go to the vastly different stalk.

For any normal person a button involves not only the application of pressure but also the consistent feedback of travel. Things like Apple's taptic engine and similar techniques simulate already bad buttons with microscopic travel.

It depends. The solid state button under the MacBook trackpad is indistinguishable from the previous physical button.
I wrote more in the comment above but just to add that the old trackpad is not the best point reference. This is just Apple chasing thinness by making any button barely have any travel. Signal or wiper stalks have 2 orders of magnitude more travel.
It is even worse, because the buttons are placed on top of the steering wheel so when you turn they also turn in place and it is confusing.
Tesla planned that everything in the car would be automated, including driving. In such case people don't need a thought out UI and responsive controls and all that can be cut down to either save money or to focus on media entertainment for the passengers. That's why they replaced steering wheel with a yoke, buttons with screens etc. Unfortunately they forgot that car need to be fully automated first, and then redesigned later. Not the other way around.
They are touch areas on the steering wheel. It's not on the screen, but they're not buttons. They don't click.
They do in the new models like the 3 refresh
On recent models they removed the stalks and put blinker buttons in the steering wheel.