L1_dist can become extremely short for slow moving vehicles leading to unnecessarily jerk turns after passing waypoints. This reduces the minimum length along the track that the vehicle will point.
See discussion here:
https://github.com/ArduPilot/ardupilot/issues/7331
we were getting some uninitialised variables. While it only showed up in
AP_SbusOut, it means we can't be sure it won't happen on other objects,
so safest to remove the approach
Thanks to assistance from Lucas, Peter and Francisco
threading bug fix. When a mission wp updates, but the L1 controller had not yet, the data is stale. Example, On Plane when NAV_LAND starts for a moment your xtrack and bearing is most likely bear zero regardless if you have a big turn or not until 10 Hz later when the update() gets called and updates those values with correct values for the new waypoint.
new param: NAVL1_XTRACK_I
// @Description: Crosstrack error integrator gain. This gain is applied to the crosstrack error to ensure it converges to zero. Set to zero to disable. Smaller values converge slower, higher values will cause crosstrack error oscillation.
fixes https://github.com/diydrones/ardupilot/issues/2650
when param is changed the integrator is set to zero. This makes for easier tuning by seeing it converge to zero on each change.
This commit changes the way libraries headers are included in source files:
- If the header is in the same directory the source belongs to, so the
notation '#include ""' is used with the path relative to the directory
containing the source.
- If the header is outside the directory containing the source, then we use
the notation '#include <>' with the path relative to libraries folder.
Some of the advantages of such approach:
- Only one search path for libraries headers.
- OSs like Windows may have a better lookup time.
1) Explicit control of tracking loop period and damping which removes previous
variation in period with speed and fixed damping ratio
2) Explicit control of track capture angle (now set to 45 degrees by default)
3) Removal of restriction on loiter radius being greater than L1 distance
The circle(loiter) control is a L1 and PD hybrid utilising L1 for waypoint capture and PD control for circle tracking.
Pair-Programmed-With: Paul Riseborough <p_riseborough@live.com.au>
Pair-Programmed-With: Andrew Tridgell <tridge@samba.org>
Randy Mackay
Andrew Tridgell
Lucas De Marchi
Michael du Breuil
Mathieu OTHACEHE
Grant Morphett
Tom Pittenger
Jonathan Challinger
Gustavo Jose de Sousa
Andrew Tridgell
Paul Riseborough
Brandon Jones