mirror of https://github.com/ArduPilot/ardupilot
Arducopter: New Alt control code
Uses a new method to manage altitude changes. Alt hold controller was split into a hold and a rate controller just like navigation. Changing alt is done by specifying a climb rate. Interactive alt hold is now simplified and is an 80cm climb or descent.
This commit is contained in:
Jason Short
parent
3f5e787fe8
commit
cb1cdcd4a7
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@ -656,7 +656,7 @@ static int32_t baro_alt;
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// The climb_rate as reported by Baro in cm/s
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static int16_t baro_rate;
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// used to switch out of Manual Boost
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static boolean reset_throttle_flag;
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static int8_t reset_throttle_counter;
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// used to track when to read sensors vs estimate alt
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static boolean alt_sensor_flag;
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@ -685,7 +685,7 @@ static boolean takeoff_complete;
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// Used to see if we have landed and if we should shut our engines - not fully implemented
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static boolean land_complete = true;
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// used to manually override throttle in interactive Alt hold modes
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static int16_t manual_boost;
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//static int16_t manual_boost;
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// An additional throttle added to keep the copter at the same altitude when banking
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static int16_t angle_boost;
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// Push copter down for clean landing
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@ -875,12 +875,15 @@ static Vector3f accels_position;
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// accels rotated to world frame
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static Vector3f accels_rotated;
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//static Vector3f position_error;
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// error correction
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static Vector3f speed_error;
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// Manage accel drift
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static Vector3f accels_offset;
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//static float z_offset;
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//static Vector3f accels_scale;
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#endif
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////////////////////////////////////////////////////////////////////////////////
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@ -1799,65 +1802,48 @@ void update_throttle_mode(void)
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case THROTTLE_HOLD:
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// allow interactive changing of atitude
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adjust_altitude();
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if(g.rc_3.control_in < 200){
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reset_throttle_counter = 50;
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nav_throttle = get_throttle_rate(-80);
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g.rc_3.servo_out = g.throttle_cruise + nav_throttle + angle_boost;
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break;
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}else if (g.rc_3.control_in > 800){
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reset_throttle_counter = 50;
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nav_throttle = get_throttle_rate(80);
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g.rc_3.servo_out = g.throttle_cruise + nav_throttle + angle_boost;
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break;
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}
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// fall through
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if(reset_throttle_counter > 0){
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reset_throttle_counter--;
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if(reset_throttle_counter == 0){
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force_new_altitude(max(current_loc.alt, 100));
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}else{
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nav_throttle = get_throttle_rate(0);
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}
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}
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// else fall through
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case THROTTLE_AUTO:
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// calculate angle boost
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angle_boost = get_angle_boost(g.throttle_cruise);
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// manual command up or down?
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if(manual_boost != 0){
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#if FRAME_CONFIG == HELI_FRAME
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throttle_out = heli_get_angle_boost(g.throttle_cruise + manual_boost);
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#else
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throttle_out = g.throttle_cruise + angle_boost + manual_boost;
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#endif
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//force a reset of the altitude change
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clear_new_altitude();
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/*
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int16_t iterm = g.pi_alt_hold.get_integrator();
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Serial.printf("tar_alt: %d, actual_alt: %d \talt_err: %d, \t manb: %d, iterm %d\n",
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next_WP.alt,
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current_loc.alt,
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altitude_error,
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manual_boost,
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iterm);
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//*/
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// this lets us know we need to update the altitude after manual throttle control
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reset_throttle_flag = true;
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}else{
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// we are under automatic throttle control
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// ---------------------------------------
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if(reset_throttle_flag) {
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force_new_altitude(max(current_loc.alt, 100));
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reset_throttle_flag = false;
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update_throttle_cruise();
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}
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// 10hz, don't run up i term
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// 10hz
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if(motors.auto_armed() == true){
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// how far off are we
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altitude_error = get_altitude_error();
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// get the AP throttle
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nav_throttle = get_nav_throttle(altitude_error);
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/*
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Serial.printf("tar_alt: %d, actual_alt: %d \talt_err: %d, \tnav_thr: %d, \talt Int: %d\n",
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next_WP.alt,
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current_loc.alt,
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altitude_error,
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nav_throttle,
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(int16_t)g.pi_alt_hold.get_integrator());
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//*/
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int16_t desired_speed;
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if(alt_change_flag == REACHED_ALT){ // we are at or above the target alt
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desired_speed = g.pi_alt_hold.get_p(altitude_error); // calculate desired speed from lon error
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desired_speed = constrain(desired_speed, -250, 250);
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nav_throttle = get_throttle_rate(desired_speed);
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}else{
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desired_speed = get_desired_climb_rate(150);
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nav_throttle = get_throttle_rate(desired_speed);
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}
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}
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// hack to remove the influence of the ground effect
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@ -1866,16 +1852,11 @@ void update_throttle_mode(void)
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}
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#if FRAME_CONFIG == HELI_FRAME
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throttle_out = heli_get_angle_boost(g.throttle_cruise + nav_throttle + get_z_damping() - landing_boost);
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throttle_out = heli_get_angle_boost(g.throttle_cruise + nav_throttle - landing_boost);
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#else
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throttle_out = g.throttle_cruise + nav_throttle + angle_boost + get_z_damping() - landing_boost;
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throttle_out = g.throttle_cruise + nav_throttle + angle_boost - landing_boost;
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#endif
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}
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// light filter of output
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//g.rc_3.servo_out = (g.rc_3.servo_out * (THROTTLE_FILTER_SIZE - 1) + throttle_out) / THROTTLE_FILTER_SIZE;
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// no filter
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g.rc_3.servo_out = throttle_out;
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break;
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}
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@ -2119,15 +2100,19 @@ static void update_altitude()
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#else
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// This is real life
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#if INERTIAL_NAV == ENABLED
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baro_rate = accels_velocity.z;
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#else
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// read in Actual Baro Altitude
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baro_alt = read_barometer();
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//Serial.printf("baro_alt: %d \n", baro_alt);
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// calc the vertical accel rate
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int temp = (baro_alt - old_baro_alt) * 10;
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baro_rate = (temp + baro_rate) >> 1;
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baro_rate = constrain(baro_rate, -300, 300);
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old_baro_alt = baro_alt;
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#endif
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// Note: sonar_alt is calculated in a faster loop and filtered with a mode filter
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#endif
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@ -2211,6 +2196,7 @@ static void update_altitude_est()
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//Serial.printf(" %d, %d, %d, %d\n", climb_rate_actual, climb_rate_error, climb_rate, current_loc.alt);
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}
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/*
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#define THROTTLE_ADJUST 225
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static void
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adjust_altitude()
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@ -2229,6 +2215,7 @@ adjust_altitude()
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manual_boost = 0;
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}
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}
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*/
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static void tuning(){
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tuning_value = (float)g.rc_6.control_in / 1000.0;
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@ -2416,7 +2403,7 @@ static void update_nav_wp()
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// nav_lon, nav_lat is calculated
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if(wp_distance > 400){
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calc_nav_rate(calc_desired_speed(g.waypoint_speed_max, true));
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calc_nav_rate(get_desired_speed(g.waypoint_speed_max, true));
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}else{
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// calc the lat and long error to the target
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calc_location_error(&next_WP);
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@ -2439,7 +2426,7 @@ static void update_nav_wp()
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// calc error to target
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calc_location_error(&next_WP);
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int16_t speed = calc_desired_speed(g.waypoint_speed_max, slow_wp);
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int16_t speed = get_desired_speed(g.waypoint_speed_max, slow_wp);
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// use error as the desired rate towards the target
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calc_nav_rate(speed);
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@ -2465,7 +2452,6 @@ static void update_nav_wp()
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static void update_auto_yaw()
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{
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if(wp_control == CIRCLE_MODE){
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//trace("CIRCLE mode")
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auto_yaw = get_bearing(¤t_loc, &circle_WP);
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}else if(wp_control == LOITER_MODE){
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