The car is a complex system now and becoming increasingly more so. Yet, we only teach people how to drive as if conditions are perfect. Then, problematic circumstances are only written about; actually, the whole notion is to allow errors (why else the huge amount of accidents?) and to use the adage of learning from the mistakes of others.
We need something better, folks.
Essentially, the
Toyota problem that is behind the massive recall, and stoppage of sales, may boil down to 'drive by wire' (
dbw) which is analogous to the 'fly by wire' (
fbw) that we're seeing increasingly.
Now, there is nothing implicit in this post that is anti-progress, however certain burdens come with the forward steps. One of these is a mental adjustment. Nor is there any attempt at resolving the problem which Toyota is very capable of handling.
Aside: Some comments to the Business Week article mention problems and cover ups by other auto makers. Somehow, one does not expect that with Toyota.
So, we're talking a general notion here, folks.
You see, even with mechanical (and hydraulic) systems, there can be failures (that is why there is safety engineering and risk management). At the time of the failure, consequences can be terrible. But, we can easily study these and make adjustments. It's called learning. Too, the feedback to the driver, of the older systems, was more natural.
The
fbw, and
dbw, systems have contrived feedback. So, training, and the resulting mental re-adjustment, is in order.
In the case of
fbw, the training is taken care of by reading, lecture, discussions, sophisticated simulators, and actual flying. But, even with all this, failures occur. And, we have not seen all of the consequences that can lurk with fbw.
In the case of
dbw, there is no support for the driver. Of course, we have to ask, would drivers even pay attention to the message? You see, the idiocy of texting while driving is obvious, yet we have people doing that as if their weapon of destruction's potential to harm others, and themselves, is some type of right. Or worse, that it is indicative of being progressive, cool, intelligent, and some other delusions, when, in actuality, this mindset is of swampish creatures trying to fly.
So, what is the point? In the case of
fbw, there is a lot put into studying, designing, and testing these systems. Fault handling is placed wherever it can be; yet, there are failure modes that cannot be handled and that are NOT known. Hopefully, the determination that these are only remotely possible will hold up.
But, the
bdw systems are not so scrutinized. Is the public included in the design considerations? In fact, that the systems rely on a large set of sensors is problematic, as these need attention, too. In the case of
fbw, there is regular inspection. In fact, some of these are under continual observation, or, at least, as close to continual as we can get. Remember, observers are systems, too, therefore subject to various failure modes.
In terms of the accelerator problem, it seemed a knee-jerk reaction, at the time, to name the floor mat as the chief culprit. Then, we heard that some type of material issue with the pedal itself was the likely cause.
Given that a full review is underway, we can hope that good lessons come from this. That is, Toyota has had a good name for years; in fact, western business has sort of genuflected to those wizards of the east (sometimes to nauseating extremes).
To be positive, rules ought to be described and defined. For example, if the engine thinks that it's going to runaway, the basic rule would be to shift to neutral and maneuver out of traffic. Except, if you're in the left lane and need to cross multiple lanes, other actions will be necessary.
Another? What if you're on ice and need engine power when you have this problem?
Now, it may also come from this that the auto industry will spend time making sure that their controls have overrides, redundancies, and what not to ensure against failure. Too, perhaps, they'll be a little more insightful about sensors and the consequences of their failure.
The model here is the afferent nervous system, and its sensors, which is quite complex. Yet, it has a number of failure modes. What we learn is to anticipate.
Now, why not teach driving in the same mode? Gosh, what did the DOT use yesterday? Responsible driving.
If we had taught the correct driving lessons, the mania of texting while driving would never have taken on the magnitude that we saw happen with the bad results which are upsetting.
Folks,
dbw will be reality henceforth. Let's train for this.
Aside: As found throughout this blog, there is a reminder that we do not
totally control nature through our models (abstract) and computation. And, one problem inherent with
dbw is the computational requirement that is at the basis. And, listen folks, we're using systems, with their software in a black box, for the most part, everyday to put our lives at stake. Is that smart? Well, we ought to know more. So, again, no luddite argument need be casted. These questions are from one who has been in the industry for decades and who is definitely not cognitively limited with the biases that can be observed within the gaming generation (texting and driving, brilliant!).
Remarks:
01/22/2013 -- USA Today story on
settlements. From three years ago, lest we forget.
02/08/2011 -- There was a
report today concerning a study on the
SUA problem that has been going on quietly. More news will be coming later when the
report is technically analyzed.
09/28/2010 -- It nice to see the
IEEE weigh in. Notice: sensors galore, drive in the loop, ...
04/19/2010 --
Genies, no not genius, indeed!
03/12/2010 -- Toyota's web site that is
related to recalls.
03/09/2010 --
Can of worms is what we've gotten from letting the genie out of the bottle.
02/22/2010 --
Business Week uses 'drive-by-wire' in a recent article about computational driving.
02/09/2010 -- We need to retrain the
driving brain. Where is there an
auto user group?
02/08/2010 -- More
expert opinion.
02/05/2010 --
Nader's opinion. Also,
software and cars. And, what's the
quality control? Note this from an
expert's look,
02/01/2010 -- Experts on
these types of things.
01/29/2010 --
Defense of Toyota.
01/29/2010 -- As said before, there is no reason to knock only Toyota in these regards (look at the long recall lists). The
dbw discussion could just broaden to cover the fact that systems are more complicated and electrically boosted. Note today's
Honda recall. There is no need to go through the long list of recalls except, perhaps, to categorize and count. The basis for continuing problem will be embedded logic as its prevalence can only increase due to technology. Who knows what we'll see with the hybrids and electric cares? That's the way it goes, folks, when we deal with our artificial servants.
And, using these little quirks of designed projects as an analogy for the large scope of economics is not far off base. All the gaming that we see financially has been computationally derived from mindsets that are both morally and ethically disadvantaged. Oh, these folks are brilliant and our best and brightest? Give us a break!
Modified: 01/22/2013