Page 5 of 56 FirstFirst 12345678910111213141555 ... LastLast
Results 41 to 50 of 558

Thread: HVAC Control on Car PC through Serial Port.

  1. #41
    Calm
    Down
    Or
    Get
    A
    2
    Week
    Vacation
    -Love
    The
    Forum
    Policeman
    Wiredwrx's Avatar
    Join Date
    Jan 2003
    Posts
    3,605
    Quote Originally Posted by J's89
    My system uses vacuum to control the air direction ( defrost, vent, floor, ect.) This is done manually by diverting the air via the switch. The temp control is handled by a cable routed to a door that either circulates the air over the heater core, or bypasses it. Most Fords with knob AC controls are done this way. Is there any way to address this? What would be required to retrofit? I've been all through my interior, but have no knowledge of newer electronically controlled systems.
    With that type of system, you may be able to integrate a linear actuator into the system, to pull and push the cable. Not sure how much force you will need, or the amnount of travel, but I am thinking that the travel shouldn't be all that much because it is the know moving the cable. I bet the max movement is a couple of inches. An actuator should easily be able to handle that. As far as strength, that might be a matter of trial and error. I will warn you though, most actuators you will find will be gib bucks, say in the 200 dollar range although you may be able to get one cheaper.

    Integrating it with the Mastero device shouldn't be too hard. Would just need to add a relay or two. Maybe Mastero can chime in on that.

    Michael

  2. #42
    Constant Bitrate
    Join Date
    Nov 2004
    Posts
    135
    a servo would be so much easier to use than a linear actuator

  3. #43
    FLAC SnyperBob's Avatar
    Join Date
    Nov 2001
    Location
    Illinois
    Posts
    1,162
    Any pics for this?
    www.mobile-effects.com

    Free file hosting, picture gallery hosting for installs, PM me.

    Internet's first Front End Skin browser, featured installs, downloads, links, informative articles - all free to registered users.

  4. #44
    Newbie
    Join Date
    Mar 2005
    Posts
    38
    Quote Originally Posted by Mastero
    Hmm well i am not aware of the vacuum system ..... my ride is a 1994 Mercedes C250 D and it has system like this.

    If you have any info on the vacuum system it shall be good for reference.

    Mastero
    There is one vacuum line from the engine bay that supplies vacuum to either a four or five way connection on the back of the control cluster. Rotating the switch supplies vacuum to the desired combination of vents, defroster, floor, etc. The other end of the vacuum line connects to a diaphram "actuator", or motor whichever is the correct term. It in turn raises or lowers rotating lever that extends out of the sealed evaporator core box which is attached to the door that directs the internal air flow of the system. Did any of that makes sense? I'd really like to do this. However, a $200 actuator to get the job done is out of the question!
    Mainly because I have to first buy another AC system to install... I deleted it so I could go fast. It was a brilliant decision...I should have slept in that day.

  5. #45
    Constant Bitrate
    Join Date
    Oct 2002
    Posts
    176
    Quote:The blower always has three wires for speed 1 ~2 ~3 when you touch these wire to +12v the blower goes on the desired speed.

    I think thats an over simplification. some use series /parallel wiring of the resistors via a funky switch to get the various speeds.

  6. #46
    Raw Wave wizardPC's Avatar
    Join Date
    Jun 2000
    Location
    Nashville
    Posts
    2,635
    I know with my truck, it wasnt as simple as that.

    I am really interested in this project, and I know you do great things, but what about heat? Where I live, we have hot summers and cold winters, so I need heat and air conditioning. It sounds to me like you can't control the temperature beyond making it cooler with the AC
    Debt as of 1/1/05: $34,354.48
    Debt as of July 4, 2007: $0.00 explanation
    I'M DEBT FREE!!
    I'm now a reasonably successful gunblogger.

  7. #47
    The Curator
    Auto Apps:loading...
    Blue ZX3's Avatar
    Join Date
    Aug 2004
    Location
    Chicago area,IL
    Posts
    5,079
    Quote Originally Posted by J's89
    There is one vacuum line from the engine bay that supplies vacuum to either a four or five way connection on the back of the control cluster. Rotating the switch supplies vacuum to the desired combination of vents, defroster, floor, etc. The other end of the vacuum line connects to a diaphram "actuator", or motor whichever is the correct term. It in turn raises or lowers rotating lever that extends out of the sealed evaporator core box which is attached to the door that directs the internal air flow of the system. Did any of that makes sense? I'd really like to do this. However, a $200 actuator to get the job done is out of the question!
    Mainly because I have to first buy another AC system to install... I deleted it so I could go fast. It was a brilliant decision...I should have slept in that day.

    yea, i know what your talking about...I'm a Ford man...One way to do would be to get a couple of solionds that could control the vacuum just as the switch did but give you a way to control it...wouldn't be that hard ...you would just have to find the correct valve layout...
    RideRunner...The #1 FE, PERIOD.

    Current Project: DFXVoice [v1.0 Released]
    Next in line: RRMedia v2.0

    DFX 5.1.1 Skin
    Appstore Link

    My RideRunner Plugins
    RRMedia
    RRExtended
    DFXVoice

    "There are no bugs - only undocumented features."

  8. #48
    Registered User
    Join Date
    May 2003
    Posts
    1,736
    Out of interest, did you designed the hw yourself.

    From the look of the PCB it didnt look like homebrew to me, more like a mass produced board already.

  9. #49
    Registered User
    Join Date
    May 2003
    Posts
    1,736
    I see it has an IR remote sensor. Do you have a pic for the remote handset?

  10. #50
    Jesus Freak antimatter's Avatar
    Join Date
    Jan 2004
    Location
    California
    Posts
    4,545
    I have a ford too and attest to the vaccum switch. but i think what the purpose of the project is a bit more basic then total HVAC controlls.
    -Jesus- King of Kings Lord of Lords

Similar Threads

  1. Using PC to control lighting.
    By gguy in forum General Hardware Discussion
    Replies: 7
    Last Post: 10-16-2007, 08:11 PM
  2. Kenwood In-dash Monitors to control pc?
    By DrBuzzo in forum LCD/Display
    Replies: 4
    Last Post: 12-08-2004, 08:21 AM
  3. cd changer control to control the pc
    By babas151 in forum General Hardware Discussion
    Replies: 6
    Last Post: 10-26-2004, 12:21 AM
  4. software to control pc from ipaq
    By spud42 in forum Software & Software Development
    Replies: 3
    Last Post: 11-13-2001, 01:56 AM
  5. Using a pda to control a normal PC
    By All4Norway in forum General Hardware Discussion
    Replies: 0
    Last Post: 08-27-2000, 08:52 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •