Poka Yoke • Hacker News Board

Re: Poka Yoke

#61

Post by SV_BubbleTime » Thu, Sep 09, 2021, 6:05 PM UTC

cameronh90 wrote: post #56

SV_BubbleTime wrote: post #44

Earlier quoted context omitted.

Automotive EE here… I don’t think this is correct. If you are talking pre-electronic shift, your transmission still has position sensors and the engine or trans control module will not allow start while engaged. All vehicles have interlocks for this. Post electronic shift, it’s no question at all. You would need at least two errors in two completely separate circuits to get the vehicle to start in gear. Believe it or…

I may be misunderstanding what you're saying, but many modern cars I've driven will still allow themselves to be started in gear. It happened to me quite frequently until I built up the muscle memory for always starting with the clutch in, and occasionally still does if I forget (I drive a lot of hire cars).

If you are talking auto, no definitely not.

But... If you are talking mtx (manual), which ones?

Because in 20 years of this industry I've never seen anything that didn't ship with a clutch interlock. So unless we're going back to pre-1997 - OR - you are in an "export market" like Asia, I am not aware of the models you're thinking of.

Re: Poka Yoke

#62

Post by CapsAdmin » Thu, Sep 09, 2021, 10:25 PM UTC

AussieWog93 wrote: post #52

4gotunameagain wrote: post #49

Earlier quoted context omitted.

"as is YouTube jumping to a different part of the video every time you bump one of the numerical keys on your keyboard. " Niche workflows? This is one of the most useful features! :)

You animal, you!

my cats seem to always step on the numeric keys when I watch youtube..

Re: Poka Yoke

#63

Post by tux3 » Fri, Sep 10, 2021, 7:47 AM UTC

ndsipa_pomu wrote: post #59

tux3 wrote: post #46

Earlier quoted context omitted.

I always write rm -rf for this reason (I was surprised to learn that on some systems, the flags are in a fixed position, at the start!)

One reason for having the flags before the is so that you can terminate the flags by using '--'. This is especially useful to prevent dubious files being expanded that might start with '-' and be interpreted as flags that leads to unexpected results.

Note that my Debian's `rm` happily supports terminating flags using `--` when necessary, so wanting to support `--` syntax doesn't have to come at the expense of writing -r last.

Almost always, if I'm inputting `rm` manually in a shell, I don't need `--`; very few filenames on my disk start with -.

Re: Poka Yoke

#64

Post by cameronh90 » Sat, Sep 11, 2021, 1:46 PM UTC

SV_BubbleTime wrote: post #61

cameronh90 wrote: post #56

Earlier quoted context omitted.

I may be misunderstanding what you're saying, but many modern cars I've driven will still allow themselves to be started in gear. It happened to me quite frequently until I built up the muscle memory for always starting with the clutch in, and occasionally still does if I forget (I drive a lot of hire cars).

If you are talking auto, no definitely not. But... If you are talking mtx (manual), which ones? Because in 20 years of this industry I've never seen anything that didn't ship with a clutch interlock. So unless we're going back to pre-1997 - OR - you are in an "export market" like Asia, I am not aware of the models you're thinking of.

I very rarely drive auto.

I'm not sure what an "export market" is, but I'm in the UK. Our cars seemed to have fewer automatic features for longer than other markets, for example cruise control was fairly rare until quite recently. I don't think I encountered a clutch interlock until 2015-ish (except on motorbikes) - I thought the car was broken.

I don't remember models specifically because I drive a different car each time, but I only got my driving license in 2007 and have had had the lurch happen as recently as last month (of course I have the handbrake on so it doesn't actually lurch, just stall). It might have been a VW T6 or a Vauxhall Vivaro, no more than a couple years old.

Certainly my mum's 2004 Daihatsu and my sister's 2008 Renault didn't have a clutch interlock. It's by far the exception that I need to engage the clutch before starter in all cases, but it could be in some cases that they would only require the clutch when also in gear.

Cars here still often fundamentally work similar to my first car (1998 Escort). Manual turn key ignition, able to start the engine by disengaging the clutch at speed, possible to stall at speed, put it into neutral then then restart the engine while driving, etc.

Mainly it's when driving hybrids that they seem a lot stricter.