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Old 04-20-2007, 11:02 AM   #1 (permalink)
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07 GMC's integrated brake controller

I was looking on gmc.com and noticed the 07's are available with an "integrated brake controller", is this just a new name for the brake controller provisions like they have always had, or does this mean there is a controller integrated into the brake system from the factory like on the Fords?
Just curious.
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Old 04-20-2007, 01:19 PM   #2 (permalink)
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Old 04-21-2007, 04:32 PM   #3 (permalink)
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Ford started using their version of this in 2005 IIRC. I havent used it yet, although at work we do have a truck with it. All I can say is, with todays technologies, its about time, for integrated brake controllers, that vary with the brake pedal.
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Old 04-21-2007, 06:59 PM   #4 (permalink)
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Yuppie version of the Prodigy?
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Old 04-22-2007, 09:59 AM   #5 (permalink)
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But also tied in with the ABS system.

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Old 04-22-2007, 10:36 AM   #6 (permalink)
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Tow Command from Ford is the shizzel
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Old 04-23-2007, 09:04 AM   #7 (permalink)
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Does anyone know if its a Brakesmart product?
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Old 04-24-2007, 06:06 PM   #8 (permalink)
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Its a GM product.......
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Old 04-25-2007, 11:18 AM   #9 (permalink)
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I hope it is not like the prodigy, I hated that fawker, took it out and put in an activator II!!! The damn thing wasn't consistant. I have driven a ford with the tow command and it was very nice. I just hope the controller works off of brake into and not enertia like the prodigy.
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Old 04-25-2007, 04:02 PM   #10 (permalink)
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I actually really like my Prodigy, I've found it quite consistent, but I agree it's not as good as the systems that tie into the brakes.
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Old 04-25-2007, 05:39 PM   #11 (permalink)
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"Tied into the ABS" sounds nice, but that's not how ABS works.

Neither the wheel sensors, nor the ABS controller know whether you are hooked to a trailer. ABS reacts to wheel speed differential. Even the more advanced electronic stability controls (ESC/ESP/etc.) have real problems "understanding" (i.e. Compensating for) the behavior of trailers. The integrated Ford/GM controllers are a lot more convenient, but are limited by the "dumb" (non-ABS) trailer brakes.
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Old 04-25-2007, 11:24 PM   #12 (permalink)
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Quote:
Originally Posted by pilothillcrawler View Post
I hope it is not like the prodigy, I hated that fawker, took it out and put in an activator II!!! The damn thing wasn't consistant. I have driven a ford with the tow command and it was very nice. I just hope the controller works off of brake into and not enertia like the prodigy.
I never had a problem with either prodigy that I used. Mine is consistent and doesn't require the constant adjustments that other systems I have used need. But I guess there are always different stroke or different folks

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Old 04-26-2007, 08:15 AM   #13 (permalink)
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Hopefully its as good as the Ford (minus fires). My friend went from a Prodigy in his old Ford to the TowCommand in his '05 Ford and it works much nicer. (when it works, it burned up once)
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Old 04-26-2007, 09:57 PM   #14 (permalink)
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Quote:
Originally Posted by THachiya View Post
"Tied into the ABS" sounds nice, but that's not how ABS works.

Neither the wheel sensors, nor the ABS controller know whether you are hooked to a trailer. ABS reacts to wheel speed differential.
Yes, they will know if you are hooked to a trailer. The same signal that tells you that you are hooked up, will also tell the ABS controllers that you are pulling a trailer. Wether or not they have programmed the ABS correctly to compensate for the load, is a different story. Granted, it won't be able to activate "ABS" on the trailer, but it should affect the trucks braking abilities.




My question is wether or not it will work with electric over hydraulic brakes.
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Old 04-27-2007, 09:41 PM   #15 (permalink)
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The Ford system piggybacks trailer control programs on their electronic stability controls (ESP), to compensate for the effects of the trailer.

Generally speaking ABS systems are only reacting to the mechanical forces on the tire/wheel sensors that are (obviously) sensitive to the trailer loads. As the wheel slips, the ABS reduces brake pressure on that wheel. Whether the cause of the slip is rain/snow or the slip is mitigated by the weight of the trailer, it's irrelevant to the ABS system. More to the point, the superiority of the ABS facilitated braking in the towing vehicle tends to worsen the effects of the non-ABS trailer brakes. (i.e. Trailer Push)

For this reason, the inertial systems (e.g. Prodigy) are a good thing as they can dynamically adjust the trailer's braking based on actual stopping forces. (Think of it as a dynamic proportioning valve.) Conversely, the OEM based systems can read other sensors (e.g. Road speed, wheel speed, brake pressure) to develop a braking "strategy." Each has its advantages. (OEM is naturally better at slow speed while inertial systems have the advantage at higher speeds.)

While the OEM approach certainly has "home field advantage" and should be the better answer, until they start equipping trucks with higher end ESP systems, the concept of "ABS integration" is similar to calling a push button a "dynamic motion sensor." I know that vehicles like the BMW X5 and it's Bosch based ESP have real sophisticated trailer accomodations, and for the money, that's no surprise, but I haven't seen that level of sophistication on a 3/4 ton truck yet.
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Old 04-27-2007, 09:50 PM   #16 (permalink)
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My question is wether or not it will work with electric over hydraulic brakes.
Yes. As long as your trailer brakes can work with a standard brake controller, it doesn't matter. For the same reason that the brake controller doesn't know whether your trailer brakes are adjusted or operational, it does not know whether you have electric or electric/hydraulic. (i.e. The trailer brake controller gets no feedback, it just sends variable voltage to the trailer brake circuit. What your trailer does with the current is of no concern to the controller.)
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