Subject:
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RE: vision command idea...
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 14 Dec 2000 22:15:55 GMT
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Original-From:
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Tilman Sporkert <tilman@webmethods.+NoSpam+com>
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Viewed:
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1072 times
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> motion. Some vehicles also offer the ability to switch back to
> "less than all
> the axles" steering, on either the front or rear axles. The only hint I've
> found so far which indicates the usefulness of this is that front
> wheel only
> steering may improve stability while driving at speed on roads.
If you are parallel and very close to an obstacle, like a curb or a wall,
you can't get away from it with all-wheel steering. As soon as you turn the
wheel to get the front away from the wall, the back of the vehicle will
smash into it. This can get you in trouble if you park on an empty street,
but later other cars park in front and behind you.
If I recall correctly, the 4-wheel steering on the original Super Car (the
black one) did not turn all wheels evenly. The back wheels turned only about
half as much as the front wheels.
Tilman
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Message has 1 Reply:
 | | Re: vision command idea...
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| (...) Thanks for that explanation, everything is much clearer now. I suppose it is to do with the line perpendicular to the vehicle coinciding with the centre point of the turning circle; with all wheel equal steering, it will intersect the middle (...) (24 years ago, 14-Dec-00, to lugnet.robotics)
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Message is in Reply To:
| | Re: vision command idea...
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| (...) It does, however, get more complicated that than - see a recent thread on lugnet.technic discussing this: (URL) would have flagged it up to you before, but the thread did not deal with the issue of powering the axles, only steering. (...) (24 years ago, 13-Dec-00, to lugnet.robotics)
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