Cruise Control

MGD · 05-04-2005, 02:01 PM

Hi Guino,
is it possible to implement a Cruise Control command? It would be nice to control the cruise control from the car in RR. I know we can get the reading of the speed from the gps receiver or from the gps software. It only takes 3 relay contacts to control it. Let's say you cruising 55mph and talk to NaviVoice and say "Cruise Control On" then it would send a command to the relay board which turns on the cruise control in the car and sets the speed to 55mph. Now if you want to go faster you would say "Speed Up" and a relay contact would close and speed up the car, same thing if you would like to go slower then we could have an indicator on the screen for Cruise on or off and the set speed.
Something like this:

Gobby · 05-04-2005, 02:04 PM

Use the Baseplugin/sdk to create yourself a little app to control the cruise control. Personally I don't think this is a good idea, what happens if the PC crashes etc??

MGD · 05-04-2005, 02:10 PM

Well, if the pc crashes then there is not one relay activated. Hit the brake pedal and it turns off or push the on/off button on the cruise control switch. I don't see any safety issue with this, but I see a safty issue with using the mixer and try to adjust 16 sliders or watch a DVD while driving.

edrex · 05-04-2005, 02:23 PM

Quote: Originally Posted by MGD

I don't see any safety issue with this, but I see a safty issue with using the mixer and try to adjust 16 sliders or watch a DVD while driving.

Thats where common sense comes in. You're not supposed to watch movies while driving and it wouldn't be a good idea to set the sliders either. Do that while parked.
About the cruise, don't you have steering wheel mounted controls? I myself would just like my computer to cover the audio/video portion of my car, but I really don't want to have it take over any of the cars major functions. Just doesn't seem like a good idea for me.
But power to you if you want to try it out on yours!

MGD · 05-04-2005, 03:16 PM

Yes I do have steering wheel functions for that. I just like to have it also displayed on the screen. Since there is a computer in the car why not talk to it and have it turned on and controlled that way also.Just a thought.

TheKingPlaza · 05-04-2005, 04:06 PM

Quote: Originally Posted by UK_MP3Car

Use the Baseplugin/sdk to create yourself a little app to control the cruise control. Personally I don't think this is a good idea, what happens if the PC crashes etc??

I really think that's a good idea..

only watch movies/dvd when speed is below 10 miles / 25 km.

MGD · 05-04-2005, 04:25 PM

My main menu as of now is set that when there is a speedo reading the buttons for DVD is disabled. Also in audio player the mixer button is disabled. Better safe than sorrow, esspecially California.

vortex · 05-04-2005, 08:49 PM

Quote: Originally Posted by TheKingPlaza

I really think that's a good idea..

only watch movies/dvd when speed is below 10 miles / 25 km.

What about your passengers?

0l33l · 05-04-2005, 09:00 PM

Control with voice sounds like a great idea

DjBac · 05-04-2005, 09:18 PM

You could definately do it with baseplugin and phidgets!!

I think it would be very easy!!

guino · 05-05-2005, 01:40 AM

easy, yes.. but there's more to it than just the buttons.. break sensor and clutch sensor (if manual).. otherwise you'd basically just have the buttons on the screen, but no indication.

MatrixPC · 05-05-2005, 09:22 AM

This is really for "show off" rather than the purpose.
Next time you slam your car to the wall head in and blame "Windows crash and screw up my cruise control".
Anything that interferce with the operation and safety of the car is a NO, NO.

Most/all car already has the cruise control on the steering wheel. Don't be lazy just to to use your finger and use it.

ddogg_777 · 05-05-2005, 03:18 PM

90% of what we do is for "show off". I think it would be neat gimmick. Leave the cruise on/off button to the stearing wheel and have the acc/resume, set/decel, cancel buttons run by the computer. Safety? Cruise can't activate if it is turned off or if the brake is applied.

djXternal · 05-05-2005, 03:48 PM

if you are scared of a pc crash institute a manual shutoff button, kills all signals coming from pc to the car... i personally think a manual shutoff should be installed in anything dealing with addon technology, just makes things safer and easier to control

Bugbyte · 05-05-2005, 05:27 PM

On the surface this proposal sounded dangerous but I think you've got the failure mode figured out. You just need to be absolutely certain that pressing the brake disconnects the PC from the system, just as it intervenes with the switches on the steering wheel.

If you hack the steering wheel controls using the relay(s), the PC ought not to be able to "take over" the car any more than a sticking "accelerate" button on the steering wheel would.

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