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#1
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What is Passive Rear Steering?
After reading Chike's thread about his new SVX and explaining the windows, "passive rear steering," and whatnot to family, I decided that I don't know what passive rear steering is. I searched for it here, and didn't find much (so please don't flame me).
What is passive rear steering? How is different from normal steering? How does it work? Inquiring minds want to know.
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Eric 1994 Bordeaux Pearl SVX LSi "The SVX — Where, they wondered, do you put the kayak?" |
#2
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Re: What is Passive Rear Steering?
What is passive rear steering? How is different from normal steering? How does it work? Inquiring minds want to know. [/B][/QUOTE]
Mr. aredubjay is our resident rear wheel steering guru, & I'm sure he can be persuaded to dust off the tomes of accumulated information buried somewhere under Funk & Wagnalls' porch. Ron (now opening can o' worms).
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Good s**t happened. 69 was worth the wait. '92 stock semi-pristine ebony - 160K '96 Grand Caravan - 240K '01 Miata SE - 79K '07 Chrysler Pacifica - 60k - future money pit. |
#3
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Re: What is Passive Rear Steering?
Quote:
The passive rear steer is caused be the trailing link on the rear suspension. As the wheel moves up and down, it is pulled forward in an arc around this trailing link. The effect is as the wheel moves up it also is pulled forward, to point in, or toes in. This causes the car to oversteer slightly. Harvey.
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One Arm Bloke. Tell it like it is! 95 Lsi. Bordeaux Pearl, Aust. RHD.149,000Kls Subaru BBS wheels. 97 Liberty GX Auto sedan. 320,000Kls. 04 Liberty 30R Auto Premium. 92.000kls. Last edited by oab_au; 04-26-2004 at 07:43 PM. |
#4
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This explains it: SVX AWD System
Look at the bottom under rear suspension. All SVX's will have this feature as the suspension was never updated by Subaru. -Chike
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"Wise men talk because they have something to say; fools, because they have to say something." - Plato 2013 Cosmic Blue 5spd Evo X GSR 2006 Galaxy Gray 6MT RX-8 (sold) 2006 Steel Gray WRX TR (sold) 1996 Brilliant Red SVX L (sold) Last edited by Chiketkd; 04-26-2004 at 08:04 PM. |
#5
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Passive rear-wheel steering is a marketing term coined by Subaru for what the SVX's rear suspension does. But I'm almost certain that it works the opposite compared to how Harvey explained it. As the rear suspension is loaded up, for instance during a turn, the outside rear wheel (moving up) toes out and the inside wheel (moving down) toes in.
The reason it does this is that the two parallel links are different in lengths. So as the suspension moves up and down the hub is turned as if it was being 'steered.' I don't really consider this steering, and it's not the first suspension scheme to do what it does. But it's still cool. Of course it means that when the rear suspension is loaded evenly, like during acceleration or a big bump, both wheels toe out. I put a picture of the rear suspension in my locker: http://www.subaru-svx.net/photos/fil...kets/17218.jpg Edit: Well, I read the Guide's section on suspension and it seems that I had it backwards. During cornering, the Guide says that the outer wheel toes in and the inner wheel toes out. The Guide claims that this makes the car more predictable. In this case, I think 'predictable' is just another word for 'understeer.'
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2005 RX-8 Grand Touring 2005 Outback 2002 Mercedes-Benz E320 wagon END OF LINE Last edited by Mr. Pockets; 04-26-2004 at 08:14 PM. |
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