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 17:42:50 GMT
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Original-From:
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Martin <martin@mediax*AvoidSpam*.com>
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Reply-To:
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martin@mediax+StopSpam+.com
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Viewed:
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1030 times
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Jennifer Clark wrote:
> Mike Fusion wrote:
>
>
> > after doing some searching i found out that it is called "Central Steering"
>
> It does, however, get more complicated that than - see a recent thread on
> lugnet.technic discussing this:
>
> http://news.lugnet.com/technic/?n=3102
>
> I would have flagged it up to you before, but the thread did not deal with the
> issue of powering the axles, only steering. Essentially, once you have multi
> axle steering, there are various ways in which it can be applied. The way you
> are thinking of is known as "coordinated" mode, but there is also "crab mode"
> in which all wheels point the same way allowing a large sideways component of
> motion.
...
A number of cars have done this in the past, though not many were
brought to the US. Amusingly enough, a little-known option on the 240SX
(I forget which years) is the HICAS (HIgh CApacity Steering) system
which is a 4WS option. The rear of the car will steer opposite to the
front at low speeds for U-turns, and with the rear at high speeds, for
quick lane changing. This is only helpful on highways, however, for once
you get into autocross racing (or similar) you rapidly discover that the
car behaves better through turns if the rear wheels are fixed.
If you would like to read more about four wheel steering, see:
http://www.fortunecity.com/silverstone/lancia/58/technical_school/traction/tech_traction_other.htm#4WS
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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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