Tesla Auto Wipers: Why They Don't Work and Why There Isn't an Easy Fix

Post by [deleted] » Fri, May 31, 2024, 5:53 AM UTC

lucianbr wrote: post #138

shiroiushi wrote: post #123

Earlier quoted context omitted.

No. The vehicle speed is determined by a single sensor, the Vehicle Speed Sensor. It measures the rpm of the driveshaft (or one of them), the shaft that is the output from the transmission. You don't need the gear ratio. But yes, it does assume that the tires are a certain size, so if you put the wrong size tires on, it will be wrong. Also, it's not super-accurate: tires sizes differ slightly by brand/model, plus the…

I wonder what you mean by "accumulates". If I change the tires, the slight difference due to the previous brand and the slight difference due to the new brand do not compound. I only get the last one. And if the older ones were worn, the new ones will have less error, as they are less worn. If the errors really accumulated, once in a while we would need to recalibrate the speed sensor, else we would be doing 90 and s…

Post by Freedom2 » Fri, May 31, 2024, 7:44 AM UTC

tempestn wrote: post #89

CGamesPlay wrote: post #54

Earlier quoted context omitted.

Completely ignoring the terrible UX of all of this, I can't imagine why someone would ever want to drive a car where path to access critical functionality changes so frequently.

Agreed. But I wanted an electric SUV with room for kids and dog and such, and the Model Y absolutely blew away competitors in 2021 in terms of space for people and cargo, in a reasonably sized vehicle. Still does to some extent; no one else has the small third row option, which is fantastic for driving kids' friends and such. Also the charging network was/is far superior to alternatives. So I was willing to put up wi…

Post by tempestn » Fri, May 31, 2024, 8:27 AM UTC

csa wrote: post #145

lm411 wrote: post #94

Earlier quoted context omitted.

Using a touch screen to control wiper speed seems insane. In fact, most of what you wrote sounds incredibly unintuitive and frankly stupid. Things like wiper speed need to be brain-dead simple muscle memory controls - and similar in behaviour to other vehicles. I own three (cheap and old) vehicles, and I can easily switch between them and control the wipers even if I haven't driven one for 6+ months. Vehicle control…

> Using a touch screen to control wiper speed seems insane. Honestly, I think that this is overblown. Tap the end of the left stick and then use left scroll wheel to adjust. Or use the voice command (e.g., “turn on wipers” or “increase wiper speed by 1”). The “bad” part of the wipers is that some folks new to the car don’t know how to operate them if they have not read the manual. Shitty drivers are going to do stupi…

Post by fastball » Fri, May 31, 2024, 8:56 AM UTC

_yb2s wrote: post #152

fastball wrote: post #104

Earlier quoted context omitted.

Giving Musk the benefit of the doubt, probably his thinking is more along the lines of: "I'd like to solve this with vision. Sure, we can ship a $5 part to do it the tried-and-true way, but if we do that then we're probably never gonna solve it with vision, because there will no longer be a pressing need to do so. So I'm gonna force us to not ship our cars with a proper rain sensor in the hope that it will continuall…

There’s no doubt to give him the benefit of… even in your version they still decided to ship a basic feature that doesn’t work in a production automobile. Other car manufacturers push teams hard to develop new tech also, but they also test the heck out of them so they’re 100% functional before they would put it into production. Piech was famous for outlandish demands on engineers at VW, but his demands took the form…

Post by infecto » Fri, May 31, 2024, 12:31 PM UTC

ra7 wrote: post #53

pavel_lishin wrote: post #2

> This is a result of Tesla’s strategy to rely upon Tesla Vision to replace all sensors – which they’ve successfully used most recently to replace the ultrasonic parking sensors (USS) on their vehicles. Tesla believes that vision is the solution to achieving all self-driving capabilities, and this includes the elimination of extraneous sensors such as USS and radar. Why are they so hell-bent on using nothing but vide…

Combination of cost savings and “first principles” thinking. They tried to save $5 per car by not including a rain sensor. It’s a few million dollars in savings at their scale. At the same time, they spend time and resources engineering a “smart” solution to auto wipers using cameras. And they continue to spend effort on that because it still doesn’t work. Penny wise, pound foolish.