| Flat towing brake mechanism [message #190958] |
Wed, 21 November 2012 08:59  |
mschultz
Messages: 113
Registered: September 2010
Location: Maple City, MI
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Happy Thanksgiving to All
When we begin traveling in earnest next year, flat towing a vehicle is being considered. Our best choice of what we have is a rear wheel drive 122 Volvo, 2400 lbs. The big question is braking. Currently the GMC has a Electric Trailer Brake Control. The cost of the ready made devices are a little over the top, going for $1000 generally. I am currently looking at linear actuators, like the one shown at Grainger seen here: http://www.grainger.com/Grainger/WARNER-LINEAR-Linear-Actuator-18G681?Pid=search
This is 2 inch stroke, 100 lbs. 12 VDC and 4 seconds to reach full stroke.
There is also one shown in a 4 inch stroke, 100 lbs. 12 VDC and 8 seconds to reach full stroke.
My question is what effective control would the brake control have over this device? How does the varying degree of braking that is set at the control effect the electric magnetic trailer brakes? The linear actuator I believe is motor driven and the shaft is extended via a screw device. The brake control may not be effective in controlling with any degree of sensitivity on this device. If anyone has some other thoughts on the subject, I would like to hear them. Like most questions on this forum, the topic has been dealt with before and I am grateful for receiving a small taste of the combined experience, knowledge and recommendations of this group. Thanks.
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