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CRJ700 family goes canvas

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Re: CRJ700 family goes canvas

Postby it0uchpods » Sun Aug 20, 2017 5:22 pm

Nice

@JSB/Daniel
I've pushed a stable version of my new Autopilot/Flight Director controllers to http://www.github.com/it0uchpods/CRJ700-family.git

Let me know what you think. I have not yet touch the logic, other than a minor tweak to altitude capture. I did, however change the entire PIDs for the Autopilot, and Flight Director, and as I said, I fixed the Yaw Damper.

Please note:
The new AP uses Aileron and Elevator for control, and will auto-pitch-trim the elevator. (Please let me know if this is not correct, 99% of Airliners do it this way). I adjusted the dual control flight controls to adapt for this, and did extensive testing. Seems OK on my end.

The only thing still affecting the PIDs: when approaching a target altitude, 500ft is not enough to level out, causing a overshoot, which is then corrected. If/when I overhaul the logic, this will be fixed.

Kind Regards,
Josh
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Re: CRJ700 family goes canvas

Postby it0uchpods » Mon Aug 21, 2017 5:26 pm

I forgot the G/S Rate of Climb Computers, so the G/S mode didn't work. Now fixed, sorry.

Kind Regards,
Josh
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Re: CRJ700 family goes canvas

Postby zacarias » Fri Aug 25, 2017 12:24 pm

it0uchpods wrote in Sun Aug 20, 2017 5:22 pm:Nice


Please note:
The new AP uses Aileron and Elevator for control, and will auto-pitch-trim the elevator. (Please let me know if this is not correct, 99% of Airliners do it this way). I adjusted the dual control flight controls to adapt for this, and did extensive testing. Seems OK on my end.

Kind Regards,
Josh


Hi. I tested your version. The SPEED mode seems tricky. Also, from the tests I made: to reach a given altitude you have to use V/S. The speed has to be controlled manually. There's no autoland (maybe there isn't in real life).
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Re: CRJ700 family goes canvas

Postby it0uchpods » Fri Aug 25, 2017 3:00 pm

No, it works correctly. The speed is speed with pitch, and it should work perfectly. If you cheat the autothrottle, then there is a logic issue which prevents either autothrottle, is speed with pitch from working. But its a logic issue.

There is no autoland in real live AFAIK.

Josh
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Re: CRJ700 family goes canvas

Postby jsb » Tue Aug 29, 2017 8:35 pm

Sorry, still busy for the next weeks, getting my real live PPL-A, however, bad weather may force me to indoor activities (e.g. FG) ;)
Short: there is no autoland in CRJ700/900, "speed mode" is NOT autothrottle (however I kept it as a "cheat" via menubar - PID from the original authors version) but speed mode tries to keep IAS with given thrust by pitching (may be impossible when thrust lever is to high or to low).
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Re: CRJ700 family goes canvas

Postby it0uchpods » Tue Aug 29, 2017 8:40 pm

@jsb
Yes, I modeled the speed by pitch in my autopilot fix.

AFAIK there is a logic bug with switching to IAS hold cheating.(I didn't touch that)

Good luck to your PPL.

Kind Regards,
Josh
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Re: CRJ700 family goes canvas

Postby jsb » Tue Aug 29, 2017 9:04 pm

wow, could not resist to test your version. the new AP is brilliant, so smooth, love it :)
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Re: CRJ700 family goes canvas

Postby jsb » Tue Aug 29, 2017 9:07 pm

btw. personally I consider the auto thrust cheat as a developer tool while tweaking the FDM and AP - I do not expect it to work nicely all the time (but sometimes of course) ;)
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Re: CRJ700 family goes canvas

Postby it0uchpods » Tue Aug 29, 2017 9:22 pm

Hi
Great to hear.

I still would like to stress the importance of moving autopilot logic to nasal, as then the altitude capturing, localizer capturing, and g/s capturing will work better. I can make a prototype for you if you'd like.

If you'd like, I can remove the autothrottle from the normal AP system, as realistic, and add a new one to developer mode?

Kind Regards,
Josh
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Re: CRJ700 family goes canvas

Postby jsb » Wed Aug 30, 2017 8:26 pm

I agree things are a little bit scattered. Some parts are in the CRJ700-ap-rules.xml other things are done in instumentation.nas. Hopefully I did move any logic away from 3D cockpit animation XMLs - I believe I did so when aligning the AP dialog window and cockpit buttons.
I think we should give it a try and move the AP logic (like input handling for the buttons) into a autopilot.nas - afaik the XML is useful only for things that should be done at frame rate or FDM rate (button handling not being one of these things).
Whats your proposal? :)
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Re: CRJ700 family goes canvas

Postby it0uchpods » Wed Aug 30, 2017 10:20 pm

I agree with you @jsb

Here's what I'll do:
I've downloaded an FCOM for it, I'll make a custom nasal autoflight controller (this will improve PID operation too :D) and set it all up for you. It may take me a week or so, depending on how much things I have to do each day. It will be in my GitHub fork, then if you like it, you can merge it in.

The Logic would allowthe following:
Smart Engagement and Disengagement of YD, AP, and FD
LAT and VERT mode selection, by buttons, or by logic (like capture)
Automatic Smart altitude capture -- capturing occurres closer or farther from target altitude depending on climb/descent rate
Automatic Smart LOC and G/S capturing -- armed until intercepted -- like real
Altitude Capture Rate Of Climb limiting depending -- make sure that when altitude capture becomes active, the plane doesn't increase it's climb/descent rate
Automatically recenters flight controls on disengage to simulate the servers disconnecting from the flight controls/centering unit
Full support for easy integration with PFDs, MFDs, and AP Dialogs
And a few more random stuff
And various other things

Kind Regards,
Josh
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Re: CRJ700 family goes canvas

Postby jtprophet » Thu Sep 07, 2017 11:57 am

Guys,

I loaded this plane using the rembrandt renderer instead of the ALS I normally choose and I have to say I was blown away with the lighting on this thing especially at night time. I had real weather on and the runway was still wet so the visual effects were sweet! And this airplane is so much fun to fly I look forward to the full development and appreciate all that you do to make this hobby such an exciting thing.

One thing and I kinda gathered an understanding with the auto throttle reading the previous posts, so everytime I tried to engage the AT it would beep at me, did I understand correctly that the throttle levers must be in a certain position like on the airbus or this something that does not yet work?

Thank-you!

John
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Re: CRJ700 family goes canvas

Postby it0uchpods » Thu Sep 07, 2017 1:38 pm

CRJ has not autothrottle. The cheat autothrottle doesn't work properly (on the logic side).

Kind Regards,
Josh
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Re: CRJ700 family goes canvas

Postby zacarias » Thu Sep 07, 2017 4:23 pm

Is someone working on new liveries? I suggest Iberia livery (for the CRJ-1000), for instance.
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Re: CRJ700 family goes canvas

Postby DeltaSVEN » Sun Sep 24, 2017 8:09 pm

I'll get the Iberia CRJX done since there is obviously demand also have interesting routes!
CityLine D-ACND is already done, have to see where and how to push it to...

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