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Pixhawk (PX4) for Jet engine powered UAV

Posted by anas bin iftikhar on July 19, 2016 at 3:17am

Hi, 

I'm a student researcher working on a jet engine powered UAV. The task is to control the flight using pixhawk autopilot. 

I have done few HIL simulations with my custom built aircraft inside X-Plane and customized gain parameters in pixhawk. The roll and pitch axis seems stabilized but since the airspeed I'm cruising at is around 180mph, I need some help/info regarding the maximum airspeed which can be set in pixhawk's TECS control. In the parameter reference guide the maximum value which can be set is 40m/s which is the stall speed of my aircraft. This will fail Altitude Control to work and possibly auto-take off and landing. 

Does this mean that pixhawk is not capable to flying a jet engine or can we somehow tweak this limit from inside? Also, is it feasible to use pixhawk for such aircraft?

Regards. 

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Replies

  • anas bin iftikhar July 25, 2016 at 4:29am

    It still does not answer my concerns. Generally speaking, is Pixhawk advised to use on an RC jet flying at 400mph for autonomous control?

  • anas bin iftikhar July 20, 2016 at 11:38am

    I am trying to use SITL but facing few errors. I'm following the entire guide on how to use X-Plane with SITL. But it seems that mission planner isn't connecting to simulator. Following are the coonection parameters

    127.0.0.1 local port

    sim to pc 49000

    pc to sim 49001

    timeout.png

    https://storage.ning.com/topology/rest/1.0/file/get/3702271108?profile=original
  • anas bin iftikhar July 20, 2016 at 12:31am

    Thanks Andre. 

    Great work in your video. Guess I'll have to flash pixhawk with ardupilot stack. 

  • Andre K. July 19, 2016 at 8:59am

    the parameter ref. guide often mention the "typical" range of settings, not the absolute limits.

    check out https://www.youtube.com/watch?v=llRii8hmG1M  , I'll answer you question  :)

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