Thomas Gehrmann
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Testing the effects of wind with SITL

Started this discussion. Last reply by Yesica Villamil on Monday. 1 Reply

Hello guys,in the simulation there are the following parameters for testing the effects of wind:SIM_WIND_DIRSIM_WIND_SPD SIM_WIND_TURBSIM_WIND_DELAY The first and second parameter (direction and…Continue

Tags: Wind, SITL

Using SITL only for part of the code

Started Oct 20, 2015 0 Replies

Hello,I really want to contribute to a project, but I'm new to this topic. So I'm working through the ardupilot.com developer pages. I read and built with 'make px4-v2' the example sketches for some…Continue

Tags: Emulator, SITL

 

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Yesica Villamil replied to Thomas Gehrmann's discussion Testing the effects of wind with SITL
"Hello, Did you find any information? You could share it please =)"
Monday
Thomas Gehrmann posted a discussion

Testing the effects of wind with SITL

Hello guys,in the simulation there are the following parameters for testing the effects of wind:SIM_WIND_DIRSIM_WIND_SPD SIM_WIND_TURBSIM_WIND_DELAY The first and second parameter (direction and speed) are clear, but was does SIM_WIND_DELAY do and which values can SIM_WIND_TURB take?I also want to simulate wind shear, i.e. changing the wind speed with altitude. Does somebody know how to do that?Thanks a lot!Best regards,Thomas See More
Jun 21, 2016
Thomas Gehrmann posted a discussion

Using SITL only for part of the code

Hello,I really want to contribute to a project, but I'm new to this topic. So I'm working through the ardupilot.com developer pages. I read and built with 'make px4-v2' the example sketches for some libraries and uploaded them with 'make px4-v2-upload' on the Pixhawk of my Iris. With mavproxy I can look at the output.Is there a possibility to upload the code to a "virtual" Pixhawk or emulator and test the code directly on my computer?I also set up SITL, but I can only run the whole ArduPlane or…See More
Oct 20, 2015
Thomas Gehrmann replied to Thomas Gehrmann's discussion One motor is not spinning in the group IRIS
"It is the ESC! I replaced the motor, did the ESC calibration, checked for the connections and sent a video and pictures to the 3DR support and they said I need a new ESC ... Thank you for your help!"
Oct 6, 2015
Ray replied to Thomas Gehrmann's discussion One motor is not spinning in the group IRIS
"like i said earlier  could also be a damaged winding in the motor as well.. as you stated the system works kind of like a 3-Phase AC motor. if 1 of the phases is not energized, the motor will twitch and not know what direction to go. but if it…"
Sep 21, 2015
Michael Burmeister replied to Thomas Gehrmann's discussion One motor is not spinning in the group IRIS
"Sounds like the 4 in 1 ESC controller is toast.  You will need to replace it. The way the ESC works is it applies power to four coils in the motor and then applies power to the next 4 coils in the motor and so on until all 12 coils have made a…"
Sep 21, 2015
Thomas Gehrmann replied to Thomas Gehrmann's discussion One motor is not spinning in the group IRIS
"I changed the motor but the problem is the same. I also think it has to do with the esc, but maybe resetting or programming the esc could solve it. How can I change the settings of the esc? Can I do it with the APM Planner or Mission Planner?"
Sep 21, 2015
Ray replied to Thomas Gehrmann's discussion One motor is not spinning in the group IRIS
"sounds like one of the phases in your motor is burned out or damaged.. try another motor, if that is not it, then the esc may be damaged,,"
Sep 21, 2015
Thomas Gehrmann added a discussion to the group IRIS
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One motor is not spinning

After changing the flight path on my Iris ( not Iris+) one motor does not spin, it just jiggle. It seems like the ESC is trying to hold the motor in place. It is harder to turn the motor by hand when it has power than when it is off. I did the ESC calibration, I also changed the faulty motor but the problem is the same.It is my first drone and I have no clue how to solve this problem. Can somebody help me?See More
Sep 21, 2015
Thomas Gehrmann replied to Steve Castano's discussion One motor spinning too slow??
"Hello, I have the exactly same problem with one motor of my Iris: "When the ESC has power, its almost like its trying to hold the motor in place. Its harder to turn it by hand when it has power than when its off" But I do not know how to…"
Sep 21, 2015

Profile Information

About Me:
Student of Physics
Please tell us a bit about your UAV interest
Study UAV to improve Airborne Wind Energy
Hometown:
Bonn

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