Four-wheel steering drive
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Electrical Fan
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#1
18-08-2009, 01:28 PM



.doc   Four-wheel steering drive.doc (Size: 410.5 KB / Downloads: 635)
Four-wheel steering, 4WS, also called rear-wheel steering or all-wheel steering, provides a means to actively steer the rear wheels during turning maneuvers. It should not be confused with four-wheel drive in which all four wheels of a vehicle are powered. It improves handling and help the vehicle make tighter turns.

Production-built cars tend to understeer or, in few instances, oversteer. If a car could automatically compensate for an understeer/oversteer problem, the driver would enjoy nearly neutral steering under varying conditions. 4WS is a serious effort on the part of automotive design engineers to provide near-neutral steering.

The front wheels do most of the steering. Rear wheel turning is generally limited to 50-60 during an opposite direction turn. During a same direction turn, rear wheel steering is limited to about 10-1.50.

When both the front and rear wheels steer toward the same direction, they are said to be in-phase and this produces a kind of sideways movement of the car at low speeds. When the front and rear wheels are steered in opposite direction, this is called anti-phase, counter-phase or opposite-phase and it produces a sharper, tighter turn.
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project topics
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#2
04-04-2010, 03:29 PM

please read topicideashow-to-four-wheel-steering-drive and topicideashow-to-four-wheel-steering-system-full-report and topicideashow-to-four-wheel-steering-system-seminar and presentation-report for getting detailed information of four wheel steering in ppt and doc
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
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anashwar p
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#3
28-02-2012, 12:27 PM

can i have the ppt presentation for this?
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