>>but this sort of mechanism has been around for years. It isn't a question of copying, it's a question of common knowledge and practice surely?
Here's the change in engineering approach I was mentioning. The hardware side of what a car is, hybrid and electric propulsion systems aside, hasn't changed much in 30 years. The electronics, and particularly the software will become more and more how we tell one car from another. The manufacturers who can use the data available to them on the car's bus system most cleverly will be the ones who will make the most desirable cars.
I can't go much further without being accused of throwing equations in, but, to get an idea of the type of the clever uses of data, it's worth having a read of "Automotive Control Systems" by Kiencke and Nielsen.
>>I still can't help wondering how well the software and chips, which perform properly until they fail catastrophically, will cope with comfortably, slowly deteriorating mechanical parts. A driver can accommodate a measure of slop in braking, steering and so on. But a chip will expect brand-new response every time.
In general, a well designed controller is much more able to cope with changes in the dynamics of the system. The technical name for this is "robust control". It's a question of how well the controller is engineered at the outset. In the early days of vehicle electronics, many controller designs were quite naive, and easily fooled, but, that situation isn't true any more, and now most of the lessons have been learnt.
>>I know this means people will therefore have to maintain their cars to as-new chassis standard all their working lives, and a damn good thing too of course.
I don't think this is necessarily the case. As an example, our Audi 80 is now 20 years old, and its closed loop engine controller is still controlling the engine well enough to pass a catalyst MOT emissions test (even though the car doesn't need to). It isn't a car that has been pampered - either by the previous owners or by me!
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>>NC, I hope you know me better than thinking what I said was a 'near baseless rant'.
I wasn't pointing the finger at anyone in particular. I was trying, but failing!, to make the general point that this site is oddly negative about vehicle technology. I'm sure many have forgotten how truly carp cars were in the pre-electronics times. In this thread, any chance of exploring what this system is actually all about has been lost among the ignorant rantings.
>>What I am saying is, no matter how good technology is, humans by default often negate any benefit.
Yes! My view is that the sooner we remove the human from the loop entirely, the better.
We really aren't well evolved for the driving task. It's not my field, but, I heard a figure of 20 minutes being the longest time a human being can truly concentrate on one task. The electronics face no similar limitation.
I tend to take the view that the gain we get from constant monitoring and vigilence over vehicle systems far outweighs our efforts to drive towards a constant level of perceived risk.
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>>Truth to tell, I'm far more interested in knowing what they've got, if anything, than in 'dissing' it. It's not very surprising that PR and brochures are dumbed down to pointlessness, but it is frustrating that proper information can't be found at all - especially for anyone who might actually be tempted to buy on the strength of it.
Yes, it is a truly frustrating situation. I fully agree.
As you may know, for the last 6 months or so, I've been teaching engineering to undergraduates. My colleagues and I are consistently dismayed by how frequently we see marketing BS, and nonsense websites being included in the references they include in their work. We have a very well stocked library, and we pay extotionate fees to access online peer reviewed journals, but, the students only find the carp!
However, manufacturers did release extremely detailled information about their products. I have technical data for the Marina (of all cars!) where, for example, the engineering design data for each major part of the suspension, its material, and the manufacturing processes are all documented.
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