exhaust brake switch

[VAautotech]

ok guys and gals, i think i am on to something here and i really didnt know where to post this as it is not fully tested yet. I have good results from some quick tests however. I have come up with a way to automatically turn on the exhaust brake everytime the truck is started. It is basically a typical auto relay with some capacitors and resistors put in the right spots. here is a pic.................

IMG]http://i628.photobucket.com/albums/uu10/demolishun man/exhaustswitch.jpg[/IMG]

its fairly simple, and you can choose what switched power you want as long as it is hot in run and start. The capacitor acts like a ground until it charges then shuts off turning the relay on and then off after about 2.5 sec. Then once the truck is shut off and power is taken away the resistor (10K ohm) bleeds off the charge from the capacitor and resets the relay. The diode is there to prevent voltage spikes. The other resistor is what i measured inside the eshaust brake switch which is a momentary switch. The led on the switch will come on just like you had pushed the button. Also the switch itself is still fully functional allowing you to turn off the ex. brake anytime you wish. After the truck is shut off it does take about 2 minutes to fully bleed off the capacitors and reset the relay. Hope this helps!!!

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2008 Dodge Ram 2500 Mega Cab, 4x4, nav, alpine headrest monitors, Clarion DVD, Line-Xtra, deletes up soon.......

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Last edited by VAautotech : 02-20-2009 at 08:52 PM.

[slagburn]

Sounds cool.

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07.5, 6.7, Auto, QC, 4x4, Lots of gauges - ISSPRO (Pyro, Boost, Trans Temp) PriCol Optix (Fuel Pressure Lift/Rail) AutoMeter (Oil Pressure) - Dynatrac Free-Spin Hub Conversion Kit - RETRAX bed cover - homebrew stealth shaved bluetec badge - plugged up EGR - Baldwin BF1212 water separator and CAT 1R0750 fuel filter - MSD Dashhawk - Baldwin B164 Bypass Filter - BD SBS - TS MP8
When a strong man armed keepeth his palace, his goods are in peace - Luke 11:21

[VAautotech]

ok pic is not working, let me try again...............

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2008 Dodge Ram 2500 Mega Cab, 4x4, nav, alpine headrest monitors, Clarion DVD, Line-Xtra, deletes up soon.......

[VAautotech]

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2008 Dodge Ram 2500 Mega Cab, 4x4, nav, alpine headrest monitors, Clarion DVD, Line-Xtra, deletes up soon.......

[VAautotech]

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2008 Dodge Ram 2500 Mega Cab, 4x4, nav, alpine headrest monitors, Clarion DVD, Line-Xtra, deletes up soon.......

[04SSHD]

Originally Posted by VAautotech

fixed!!!!!!

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07.5 Dodge Ram 3500HD SLT 6.7L,11/06 build,5/08 delivery,PMT,DPF & EGR fell off,G56,4.10 (3.73 soon),C&C,HBS,5000k HID Solutions lights & fogs,14,000 miles to date,35" M/T,22.5's soon,Dyno at 445hp/907tq

[VAautotech]

cool sshd! that thing was driving me nuts!! Thanks!

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2008 Dodge Ram 2500 Mega Cab, 4x4, nav, alpine headrest monitors, Clarion DVD, Line-Xtra, deletes up soon.......

[Compcowboy]

looks very interesting.

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691 Hp 1200+ Tq - 2007 6.7 TWIN TURBO DUAL CP3 2500 Bighorn 4x4 6-spd Manual, 64/71/14 over a S400, Airdog 150, ARP Head Studs, TS MP-8, Airbags with Dual Control Air Comp., H&S Delete & Downpipe, What EGR?, Valair Dual Disk, Amsoil Bmk-11 Bypass, 295/70/R17 Toyos on Walker Evans Wheels,6" Aussies & Hushpower Muffler & DiProcol Gauges & 120HP nozzles (Installed!) Thanks to Wally At FTEDiesel!!!!! PMT is gone, Smarty is Gone!, H&S TO THE RESCUE! Black Maxx on the way.

[tob_e]

doesn't TAO discharge the cap only 60% and remain there? what happen if you leave the truck parked for like a week, would that cap drain the battery?

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07.5 6.7L Ram 2500 Cummins BigHorn Quad Cab, 4:10 axle, 6 spd auto, EGR, S&B, Edge/Att, MP8, Rize @ 37x20, Eclipse nav., Smarty, Thuren Fox SS, Amp Research Steps, MHP Modified tune, 8" Spirson rear leaf

[Plow Man]

Does any body know why my EB switch on my 07 C&C stays on and the one in my 08 qc p/u does not??????????? when I re start the truck?????

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2007 3500, c&c single rear wheel. 2" HBS, Truck Craft Alumium Flat Bed Dump, MEYER 8.5 LOT PRO Plow,
2008 3500, 4X4, Black, Quad cab,

[KodiakConstruction]

Originally Posted by Plow Man

Does any body know why my EB switch on my 07 C&C stays on and the one in my 08 qc p/u does not??????????? when I re start the truck?????

I think there is a time delay that it takes to turn off. I know if I turn the truck off and then start it back up quickly (within a minute) the brake will still be on.

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2008 White 5500 QC 6 Speed Aisin 4.88 gears w/ 11' Flat bed, 98 Gal Aux Tank, EGR/Cooler/DPF Delete (Thanks Shibby), AFE CAI, Amsoil throughout
07 6.7L DRW QC 4x4 w/160k miles- retired


www.kodiakconstructionaz.com

[VAautotech]

Originally Posted by tob_e

doesn't TAO discharge the cap only 60% and remain there? what happen if you leave the truck parked for like a week, would that cap drain the battery?

no the battery is unaffected because it is a switched power source that is hooked to the truck, so if the truck is off no power is applied to the relay

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2008 Dodge Ram 2500 Mega Cab, 4x4, nav, alpine headrest monitors, Clarion DVD, Line-Xtra, deletes up soon.......

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Last edited by VAautotech : 02-20-2009 at 10:54 PM.