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Tow vehicle -- electronic stability control
My understanding is that electronic stability control is a device that
selectively applies individual brakes in an attempt to prevent oversteer and understeer. Does anyone know whether this reduces the swaying of a tow vehicle, or maybe even increases swaying if the device reacts too slowly? |
#2
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Tow vehicle -- electronic stability control
This is different, but related to your subject. I found that if I was
looking in the rear view mirror at the tail of the glider trailer that I could actively damp out trailer sway by gentle steering inputs that were opposite the perceived tail direction in the rear view. If, looking at the image in the rear view, the tail was going left to right, then I applied a left steering input and vice versa. This seemed to help quite a bit when the occasional gust would get things moving. Experiment with care...it was very tempting initially to steer "with" the tail and took some focus to time the inputs in the opposite direction. Greg Arnold wrote: My understanding is that electronic stability control is a device that selectively applies individual brakes in an attempt to prevent oversteer and understeer. Does anyone know whether this reduces the swaying of a tow vehicle, or maybe even increases swaying if the device reacts too slowly? |
#3
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Tow vehicle -- electronic stability control
"Greg Arnold" wrote in message
news:8Rhhg.11367$KB.7672@fed1read08... My understanding is that electronic stability control is a device that selectively applies individual brakes in an attempt to prevent oversteer and understeer. Does anyone know whether this reduces the swaying of a tow vehicle, or maybe even increases swaying if the device reacts too slowly? I don't mean to sound like a smartass (for a change), but what does the owners manual say? If the stability control is going to cause problems when towing a trailer, it makes sense that the manual would suggest turning it off, eh? I did find a manual that suggested that you turn off the stability control when you have chains on the tires, but nothing about trailer towing. -- Geoff The Sea Hawk at Wow Way d0t Com remove spaces and make the obvious substitutions to reply by mail When immigration is outlawed, only outlaws will immigrate. |
#4
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Tow vehicle -- electronic stability control
Gary Emerson wrote:
This is different, but related to your subject. I found that if I was looking in the rear view mirror at the tail of the glider trailer that I could actively damp out trailer sway by gentle steering inputs that were opposite the perceived tail direction in the rear view. If, looking at the image in the rear view, the tail was going left to right, then I applied a left steering input and vice versa. This seemed to help quite a bit when the occasional gust would get things moving. Experiment with care...it was very tempting initially to steer "with" the tail and took some focus to time the inputs in the opposite direction. If an "occasional gust would get things moving", I think you are driving too fast. Oscillations that last long enough to damp out the way you describe indicate you are close, maybe very close, to diverging oscillations. It might take only a larger gust (or a couple in row), tires that are a few pounds low (trailer or tow vehicle), or a sharp avoidance maneuver, and suddenly you are a passenger. -- Change "netto" to "net" to email me directly Eric Greenwell - Washington State, USA www.motorglider.org - Download "A Guide to Self-launching Sailplane Operation" |
#5
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Tow vehicle -- electronic stability control
I'm not talking about white-knuckle trailer oscillations (I've been
there) but just some gentle swaying back and forth passing an 18 wheeler, etc. It was just something I elected to tinker with since the trailer swaying subject seems to be a regular subject. But it might be handy to know if something like this would work for the occasion where things got a little hairy. Eric Greenwell wrote: Gary Emerson wrote: This is different, but related to your subject. I found that if I was looking in the rear view mirror at the tail of the glider trailer that I could actively damp out trailer sway by gentle steering inputs that were opposite the perceived tail direction in the rear view. If, looking at the image in the rear view, the tail was going left to right, then I applied a left steering input and vice versa. This seemed to help quite a bit when the occasional gust would get things moving. Experiment with care...it was very tempting initially to steer "with" the tail and took some focus to time the inputs in the opposite direction. If an "occasional gust would get things moving", I think you are driving too fast. Oscillations that last long enough to damp out the way you describe indicate you are close, maybe very close, to diverging oscillations. It might take only a larger gust (or a couple in row), tires that are a few pounds low (trailer or tow vehicle), or a sharp avoidance maneuver, and suddenly you are a passenger. |
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