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37 Commits

Author SHA1 Message Date
Tom Pittenger e40bba3d13 AP_TECS: removing mission_cmd in TECS and making it bool is_landing 
this is reverse-thrust cleanup
 2016-02-12 11:08:47 -08:00
Tom Pittenger 5ba2bff85f AP_TECS: Reverse Thrust 
Reverse thrust for controlled landings, even with much steeper approach slopes. This is achieved by allowing throttle demand to go negative to maintain a target airspeed. A Pre-Flare stage was added, triggered by an altitude, to allow for a slower airspeed just before land. That lower airspeed can be near stall.
new params TECS_APPR_SMAX - sink rate max during approach
 2016-02-09 14:18:02 +11:00
Andrew Tridgell 4f9927beda AP_TECS: added set_pitch_max_limit() API 2016-01-19 11:05:56 +11:00
Tom Pittenger db8a2f7e8b AP_TECS: changed land_spdwgt to be sliding scale 2016-01-09 13:25:02 +11:00
Andrew Tridgell 9188670e03 AP_TECS: added get_height_rate_demand() call 2016-01-06 22:47:38 +11:00
Andrew Tridgell 094b9cb35e AP_TECS: reformat using astyle 2015-09-16 14:24:45 +10:00
Andrew Tridgell 36432e6515 AP_TECS: use climb rate filter consistently between DCM and EKF 
we should use baro height not hgt_afe for the climb rate filter. This
makes the climb rate consistent with the one from the EKF. The lidar
correction comes in with the demanded height, not the observed height
 2015-09-16 14:24:44 +10:00
Gustavo Jose de Sousa 1fbbe3ed81 AP_TECS: standardize inclusion of libaries headers 
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.
 2015-08-11 16:38:24 +10:00
Peter Barker 457f77314e AP_TECS: use 64-bit timestamps for dataflash logs 2015-05-27 11:54:16 +10:00
Andrew Tridgell 5a4ed85588 AP_TECS: added TECS_LAND_PMAX 
this limits maximum pitch during the flare, which both reduces
integrator windup and prevents too high pitch which can cause a stall
 2015-03-19 14:46:41 +11:00
Andrew Tridgell 060f553097 AP_TECS: provide a much smoother transition before flare 
this moves the pitch constraint smoothly between unconstrained and
fully constrained over two time constants before the flare. This
greatly reduces the sudden pitch changes at flare
 2015-03-15 13:52:17 +11:00
Andrew Tridgell 70f5ec60e8 AP_TECS: added get_land_sinkrate() 2014-12-15 21:51:07 +11:00
priseborough 0912f05e7c AP_TECS: Add parameter to adjust height rate gain during flare 2014-11-29 20:03:41 +11:00
priseborough bd97f15d06 AP_TECS: make flare height demand consistent with height rate demand 2014-11-29 20:03:34 +11:00
Andrew Tridgell bf591b0008 AP_TECS: take load factor into account in min airspeed 
this will push up minimum airspeed when turning
 2014-11-12 13:36:02 +11:00
Andrew Tridgell 2b48434e60 AP_TECS: fixed throttle demand on underspeed 
thanks to Philipp Oettershagen for finding this bug!
 2014-11-05 07:55:18 +11:00
Andrew Tridgell 7547cd45f5 AP_TECS: bring the flare height rate demand in slowly 
bring it in over 0.5s to give less of a bounce
 2014-08-27 20:13:01 +10:00
Andrew Tridgell 68dd61c7c7 AP_TECS: added TECS_LAND_TCONST 
this allows control of the time constant for landing in TECS. A lower
time constant gives tighter altitude control on landing approach
 2014-08-27 17:14:19 +10:00
Andrew Tridgell 2297c6bcd2 AP_TECS: added TECS_LAND_SINK parameter 
this controls the sink rate for the final stage of landing
 2014-08-13 21:38:05 +10:00
Andrew Tridgell c990714377 AP_TECS: added get_max_climbrate() 2014-08-07 09:29:31 +10:00
Andrew Tridgell 7c4d31c481 AP_TECS: added TECS_PITCH_MAX and TECS_PITCH_MIN 
this allows the TECS controlled pitch limits to be smaller than the
FBWA limits. It is common for a human pilot to want a bit more
discretion over pitch than you want the automatic controller to use
 2014-08-06 17:59:18 +10:00
Michael Day 312a2fc8dc AP_TECS: Parameter TECS_LAND_SPDWGT allows custom landing speed weight. 2014-04-10 15:42:49 +10:00
Andrew Tridgell a55c4e2296 AP_TECS: set target airspeed, not min/max airspeed, on landing 
this seems to prevent ballooning of the altitude when we are in the
landing approach, and gives a much smoother landing
 2014-03-20 17:34:39 +11:00
Andrew Tridgell 98530928b5 AP_TECS: make target landing speed a float 
some users may want more precise control
 2014-03-20 17:34:36 +11:00
Michael Day 861690dea2 AP_TECS: New params LAND_ARSPD and LAND_THR auto-slowing landings. 
Also controlling pitch by ignoring height error during landing.
This serves to keep the nose up.
 2014-03-20 17:34:23 +11:00
Andrew Tridgell b096881f81 AP_TECS: added time to TECS messages 2013-11-04 21:36:40 +11:00
Andrew Tridgell 84336bc74e AP_TECS: added initial flight_stage handling 2013-10-12 13:12:43 +11:00
Andrew Tridgell 16d2ad9796 AP_TECS: changed to AP_Vehicle.h 2013-09-13 11:44:31 +10:00
Andrew Tridgell 3c967a9c71 AP_TECS: use a ahrs reference 
saves a pointer access
 2013-08-14 14:58:49 +10:00
Andrew Tridgell 620d067ee1 AP_TECS: use ahrs EAS2TAS for true airspeed 2013-07-22 12:50:01 +10:00
Randy Mackay 110966c186 AP_TECS: compile error fix for size_of(log_tuning) 2013-07-12 11:45:02 +09:00
Paul Riseborough 66d60953df TECS: added height update_pitch call 2013-07-10 14:04:22 +10:00
Paul Riseborough 2c5db9a165 TECS: added support for throttle nudging 2013-07-09 20:50:37 +10:00
Paul Riseborough 9c431b4a04 TECS: use altitude supplied by mainline code 
this allows for use of ALT_OFFSET and ALT_MIX
 2013-07-09 09:25:53 +10:00
Paul Riseborough a694b781c7 AP_TECS: Add non airspeed sensor pitch to throttle mode lost during integration 2013-07-05 22:16:39 +10:00
Andrew Tridgell 68232a10f9 AP_TECS: updates to use new aircraft parameter structure 2013-07-04 16:56:57 +10:00
Paul Riseborough 5b0129e02b AP_TECS: first implemention of TECS altitude control library 2013-07-04 16:56:56 +10:00