Forum Discussion
carringb
Aug 12, 2019Explorer
Procrastinator wrote:Bionic Man wrote:
Glad things are working well for you.
Do you think the Ford anti-sway system would be adequate with a standard hitch in place of the Hensley? They are not the only manufacturer using that type of system, I would think there is something to it.
I think the Ford anti-sway would be fine for anything but a Hensley or a pro-pride. As you get into the engineering of those two hitches, you will learn about the "Hensley bump". It's important to have the trailer brake prior or at lease the exact same time as the truck. If not you will get the bump. The Ford anti-sway uses the truck's brakes to stop the sway. I don't know if or how much it uses the trailer brakes. All I know is the hitch works great when not handicapped by the ford system.
^What he says...
The Ford "sway control" system (which is really sway recovery) first tries to limit yaw by individually braking the truck's wheels. If unintended yaw continues, it will apply the trailer brakes next.
The Hensely/Pro-Pride are susceptible to the "bump" any time the truck brakes first. The "bump" can actually induce its own steering moment, which was something I didn't like when towing on ice (when letting off the brakes coming into a sweeping turn, the bump could cause sudden oversteer on ice if I wasn't chained up).
I also suspect that cross-wind induced yaw (where the steering moment is created by an adjacent truck blocking the crosswind momentarily) could potentially be interpreted by the computer as sway, when it really isn't.
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