| [GMCnet] Replacement Coach height control system [message #267959] |
Sun, 21 December 2014 06:10  |
Advanced Concept Ener
Messages: 112
Registered: December 2014
Karma: 0
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Senior Member |
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Ok Thanks for the feedback. I read the history and agree with some of the conclusions. Without feedback from actual height provided by the the existing sensor through the linkage there is no compensation for changes in load on the bags by various tank level changes or people moving around. Pressure in the bags represents height only at one loading condition and if used in a traditional feedback control system would represent positive feedback which would make it unstable. Sorry for the technicalese but control engineers like to hear explanations based on basic principals. I am a marine mechanical engineer by education and over the past 45 years have developed and patented numerous analog and digital control systems. My name is Jon D. and presently live in NJ. Hope that clears up the mystery man questions. I really have never used forum blogs on computers so I am not familiar with using this site. Forgive me if I screw things up. I really value the information posted here beca
use it is a good blend of experience and educated opinions. As far as cost is concerned I am looking for a pain thresh-hold above which people just won't spend the money. That becomes the cost I design to. I can breadboard components on to a board that will replace everything except the solenoid valves. Is it more important that it is simple to install or is less expensive to purchase? The more I put on the board pre-wired the easier the install. I can do this digitally or using analog circuitry. I am going to build one for my coach anyway and it will be expensive buying individual off the shelf components. I would then turn the basic design over to a manufacturer in Houston I use for him to manufacture and sell. I already have a business and don't need another one at my age.
If you want to email me direct use aces4nrg@gmail.com. The more feedback I get the better the design will reflect what the community is looking for. This is my 3rd GMC over the past 25 years and I am just giving back if I can.
Sent from my iPad
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| Re: [GMCnet] Replacement Coach height control system [message #267963 is a reply to message #267959] |
Sun, 21 December 2014 08:16  |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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Senior Member |
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Thanks for the introduction Jon,
I suggest you edit your profile to include your name and state. Folks will forget. It's easy. Click on the control panel, and then click on account settings. In there you can enter your signature (at least name...some folks list info about their coach) and there is another box where you can enter your location.
I've got a good working Electrolevel II so I'm not in the market for a new one. However, here are a couple thoughts that may help you.
1- If you can come up with a measuring system that doesn't CONTROL but simply reports ride height by side, there would be a market for that. Folks who have systems that they can adjust but have to measure a few times and either manually add air or turn a knob and go back outside to check, might find such a system useful.
2- There are nearly 1000 GMC enthusiasts on the Facebook site. They are mostly younger folks who think 'forums' are antique and don't participate
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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| Re: [GMCnet] Replacement Coach height control system [message #267964 is a reply to message #267959] |
Sun, 21 December 2014 08:21 |
rcjordan
Messages: 1913
Registered: October 2012
Location: Elizabeth City, North Car...
Karma: 1
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Senior Member |
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>pain thresh-hold above which people just won't spend the money
Jon, over the past year I've been reviewing the same for a raspberrypi-based temperature monitoring and switching system. The short answer, derived only from anecdotal information, is $299 (with a wiring harness). The acceptable price would go up, though, inverse to installation requirements. Plug-n-play (no wiring harness, just slap some wireless sensors around and poll them with bluetooth4) and $800 might be feasible.
>I already have a business and don't need another one at my age.
Heh! That's really been the only thing that has stopped development. Well, that and customer support.
SOLD 77 Royale Coachmen Side Dry Bath
76 Birchaven Coachmen Side Wet Bath
76 Eleganza
Elizabeth City, NC
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