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Ascending in Alt hold mode

Posted by Anderl on December 7, 2012 at 5:46am

Hey guys,

When I activate the Alt hold mode, I´m unable to raise my quad.

In AH mode, throttle stick position is used as a baseline for altitude maintenance. This means, that altitude can still be manually changed by raising or lowering the throttle control beyond a large central dead band (copied from the wiki)

Actually, I can descend by lowering the throttle, but not ascend. When I raise the throttle, motors spin always the same as they did when AH mode was activated.

Context AC V2.8.1, APM2.5

Thanks!

Anderl

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Tags: loiter, pid, throttle
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Replies

  • Mike Boland December 7, 2012 at 12:01pm

    Do you have full rates selected?

    Or have you limited throttle travel to below 100% somehow (EPA or similar)?

  • T3
    Richard Boyhan December 7, 2012 at 8:48am
    How much are you pushing the throttle? You need to push it pretty far to make the change. It's really important to return the throttle back to where you started the ALT HOLD. I can't help stree how important this is. If you fail to return the throttle, your Quad will either fall like a rock or take off like a rocket.
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