From a7bc38869e2121b7f63e63e0fae4bfe4117a3315 Mon Sep 17 00:00:00 2001 From: tumbili Date: Thu, 1 Jan 2015 14:51:18 +0100 Subject: added pitch trim for vtol in fixed wing mode --- src/modules/vtol_att_control/vtol_att_control_main.cpp | 9 ++++++++- src/modules/vtol_att_control/vtol_att_control_params.c | 11 +++++++++++ 2 files changed, 19 insertions(+), 1 deletion(-) (limited to 'src/modules/vtol_att_control') diff --git a/src/modules/vtol_att_control/vtol_att_control_main.cpp b/src/modules/vtol_att_control/vtol_att_control_main.cpp index 10a3950ac..c72a85ecd 100644 --- a/src/modules/vtol_att_control/vtol_att_control_main.cpp +++ b/src/modules/vtol_att_control/vtol_att_control_main.cpp @@ -138,6 +138,7 @@ private: float mc_airspeed_min; // min airspeed in multicoper mode (including prop-wash) float mc_airspeed_trim; // trim airspeed in multicopter mode float mc_airspeed_max; // max airpseed in multicopter mode + float fw_pitch_trim; // trim for neutral elevon position in fw mode } _params; struct { @@ -147,6 +148,7 @@ private: param_t mc_airspeed_min; param_t mc_airspeed_trim; param_t mc_airspeed_max; + param_t fw_pitch_trim; } _params_handles; perf_counter_t _loop_perf; /**< loop performance counter */ @@ -244,6 +246,7 @@ VtolAttitudeControl::VtolAttitudeControl() : _params_handles.mc_airspeed_min = param_find("VT_MC_ARSPD_MIN"); _params_handles.mc_airspeed_max = param_find("VT_MC_ARSPD_MAX"); _params_handles.mc_airspeed_trim = param_find("VT_MC_ARSPD_TRIM"); + _params_handles.fw_pitch_trim = param_find("VT_FW_PITCH_TRIM"); /* fetch initial parameter values */ parameters_update(); @@ -430,6 +433,10 @@ VtolAttitudeControl::parameters_update() param_get(_params_handles.mc_airspeed_trim, &v); _params.mc_airspeed_trim = v; + /* vtol pitch trim for fw mode */ + param_get(_params_handles.fw_pitch_trim, &v); + _params.fw_pitch_trim = v; + return OK; } @@ -459,7 +466,7 @@ void VtolAttitudeControl::fill_fw_att_control_output() _actuators_out_0.control[3] = _actuators_fw_in.control[3]; /*controls for the elevons */ _actuators_out_1.control[0] = -_actuators_fw_in.control[0]; // roll elevon - _actuators_out_1.control[1] = _actuators_fw_in.control[1]; // pitch elevon + _actuators_out_1.control[1] = _actuators_fw_in.control[1] + _params.fw_pitch_trim; // pitch elevon // unused now but still logged _actuators_out_1.control[2] = _actuators_fw_in.control[2]; // yaw _actuators_out_1.control[3] = _actuators_fw_in.control[3]; // throttle diff --git a/src/modules/vtol_att_control/vtol_att_control_params.c b/src/modules/vtol_att_control/vtol_att_control_params.c index 0ab446317..d1d4697f3 100644 --- a/src/modules/vtol_att_control/vtol_att_control_params.c +++ b/src/modules/vtol_att_control/vtol_att_control_params.c @@ -98,3 +98,14 @@ PARAM_DEFINE_FLOAT(VT_MC_ARSPD_TRIM,10.0f); */ PARAM_DEFINE_INT32(VT_FW_PERM_STAB,0); +/** + * Fixed wing pitch trim + * + * This parameter allows to adjust the neutral elevon position in fixed wing mode. + * + * @min -1 + * @max 1 + * @group VTOL Attitude Control + */ +PARAM_DEFINE_FLOAT(VT_FW_PITCH_TRIM,0.0f); + -- cgit v1.2.3