ADUK Archive

WhoseGeneration wrote:

Kimosabe wrote: but I've never had to control a skid.
It's all about learning, right?

Never having had to control a skid, that's down to the fact that you have always been driving in an AD way.
Learning to experience skid control, just pay and play somewhere. Though as Horse has previously said, it's doubtful whether public roads provide the space, considering others possibly there, to correct without damage.
The only circumstance I'd expect an AD to have to correct a skid would be at an already slow speed on ice or very snow covered roads.

jcochrane wrote:

Kimosabe wrote:

martine wrote:I applaud your efforts to find a definitive research but doesn't it intuitively make sense? If a hand is in front of the airbag during deployment it's either going to damage your hand/face or stop the airbag from cushioning your upper body and head...isn't it?

It does make sense if the airbag deploys but perhaps a personal example might help to expand on what lead to my curiosity.

I wonder what it takes to cause a front airbag to deploy. When I was told that "we don't allow hands to go over 12 o'clock because if the airbag deployed, it would break my arms", I was at first surprised that airbag deployment could occur at such a low speed. We were in a car park and I had just purposely taken a corner by what I thought was called 'predictive input'. That is to say that I took hold of the wheel at about 10 o'clock with my right hand, while keeping my left hand at 9 and pulled the wheel until my right hand was at around 3. Both hands at this point were opposite eachother. The car took the corner with no further input or drama until I straightened the wheel in the exact opposite way. The whole thing took a few seconds. I couldn't see anything wrong with what I did as I have done this many times and the instant catastrophised potential outcome seemed ridiculous and misplaced, even if somewhat predictable.

So true to form, I set about checking the information I was given for myself and this is as far as I have got so far. As always I am happy to be corrected and guided but only if it comes with reasonable information.

Just a small point what you describe was not "predictive" steering. Predictive steering is where both the hands are prepositioned before steering, then, in a fixed grip/hands manner, turning the wheel and if judged correctly the hands will be at 3-9 at the maximum turn point. Hence the term predictive as you predict the amount of turn required and pre position your hands based on that prediction.

What you describe sounds, like what is referred to as "taking a good handful of steering wheel" before commencing PP The upper hand passes over 12 o'clock so quickly in the early phase of steering that any issue is surely remote.

On the other hand, and I am only guessing, if one hand has crossed past 12 'o'clock and then held there for most of the turn as might occur if using fixed input then there may be an issue. Personally I only use fixed input up to 12 o'clock. If more of a turn is required I would use PP.

Kimosabe wrote: Airbag deployment while driving around a car park isn't what I call reasonable.