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#1 (permalink) Old 06-29-2010, 01:25 PM
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Trailer Sway Control

Taking from Toyota's training material. A few of the latest updates for 2011 as well..........


Approach Angle - Fresh Ideas on Toyota Truck Features, Technology & News


Week 54: Trailer sway control

Customers need to know that a truck equipped with electronic trailer sway control is not a substitute for traditional mechanical sway control designed for the trailer.

Some competitive trucks are boasting built-in trailer sway control. It's a relatively new feature that is an extension of the tow1 vehicle's electronic stability control system. It is not the same as a traditional trailer sway control that is a mechanical device installed directly on the trailer.

What is trailer sway?
Technically it's called trailer yaw but common terms are trailer sway and fishtailing
In simple terms, it's unexpected, unpredictable side-to-side movement of the trailer

What causes trailer sway?
Different vehicle dynamics and laws of physics define trailer yaw but there are numerous road conditions and man-made situations that can provoke it, including:
Too much or too little trailer tongue weight; uneven or slippery road surfaces
Improper trailer design; improper trailer-load management; high center of gravity in trailer
Extended downhill driving; high winds or passing oncoming big rigs on narrow roads
Trailer sway is a towing phenomenon that becomes more severe if not corrected
However, correcting trailer sway is not usually an instinctive driver reaction

What is mechanical sway control?
Trailer sway-control devices work through friction, cam action or some type of leverage
They basically create a stiffer, more rigid connection between the trailer and tow vehicle while driving in a straight line
Manufacturers of boat trailers may not recommend mechanical sway control on trailers with surge brakes as the device could affect operation of the surge brake

What is electronic sway control?
It's additional programming in the vehicle electronic stability control system
If the system detects trailer yaw, it takes counter measures such as activating the vehicle's brakes individually and possibly reducing engine power

Does Tundra have sway control?
The 2011MY Tundra will feature electronic trailer sway control as standard equipment for all models, even if the vehicle is not equipped with the tow package. Customers can couple the electronic trailer sway control with the trailers mechanical system to haul the heaviest loads with maximum confidence.
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#2 (permalink) Old 06-29-2010, 01:45 PM
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Great, glad to hear the Toyota is junping on the band wagon. I was wondering when they would join the parade.

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#3 (permalink) Old 06-29-2010, 04:18 PM
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If Toyota is so big on trailering, where's my diesel? HD Diesel in 2012??? PLEASE!!!!!
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#4 (permalink) Old 06-29-2010, 04:31 PM
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Originally Posted by kwarstler View Post
If Toyota is so big on trailering, where's my diesel? HD Diesel in 2012??? PLEASE!!!!!
+1 Agreed!!

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#5 (permalink) Old 06-29-2010, 05:00 PM
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Dont bother. The world is going to end in 2012

MOLON LABE
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#6 (permalink) Old 06-29-2010, 05:11 PM
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The world is gonna end because the Tundra HD outpulls everyone else and no one believes it.

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#7 (permalink) Old 06-29-2010, 05:30 PM
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Dont bother. The world is going to end in 2012
Not until December 21st.


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