mirror of https://github.com/ArduPilot/ardupilot
139 lines
6.3 KiB
C++
139 lines
6.3 KiB
C++
/// @file AP_MotorsHeli_Dual.h
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/// @brief Motor control class for dual heli (tandem or transverse)
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/// @author Fredrik Hedberg
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#pragma once
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#include <AP_Common/AP_Common.h>
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#include <AP_Math/AP_Math.h>
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#include <RC_Channel/RC_Channel.h>
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#include "AP_MotorsHeli.h"
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#include "AP_MotorsHeli_RSC.h"
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#include "AP_MotorsHeli_Swash.h"
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// tandem modes
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#define AP_MOTORS_HELI_DUAL_MODE_TANDEM 0 // tandem mode (rotors front and aft)
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#define AP_MOTORS_HELI_DUAL_MODE_TRANSVERSE 1 // transverse mode (rotors side by side)
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// tandem modes
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#define AP_MOTORS_HELI_DUAL_SWASH_AXIS_PITCH 0 // swashplate pitch tilt axis
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#define AP_MOTORS_HELI_DUAL_SWASH_AXIS_ROLL 1 // swashplate roll tilt axis
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#define AP_MOTORS_HELI_DUAL_SWASH_AXIS_COLL 2 // swashplate collective axis
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// default differential-collective-pitch scaler
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#define AP_MOTORS_HELI_DUAL_DCP_SCALER 0.25f
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// maximum number of swashplate servos
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#define AP_MOTORS_HELI_DUAL_NUM_SWASHPLATE_SERVOS 6
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// default collective min, max and midpoints for the rear swashplate
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#define AP_MOTORS_HELI_DUAL_COLLECTIVE2_MIN 1250
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#define AP_MOTORS_HELI_DUAL_COLLECTIVE2_MAX 1750
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#define AP_MOTORS_HELI_DUAL_COLLECTIVE2_MID 1500
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/// @class AP_MotorsHeli_Dual
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class AP_MotorsHeli_Dual : public AP_MotorsHeli {
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public:
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// constructor
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AP_MotorsHeli_Dual(uint16_t loop_rate,
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uint16_t speed_hz = AP_MOTORS_HELI_SPEED_DEFAULT) :
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AP_MotorsHeli(loop_rate, speed_hz)
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{
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AP_Param::setup_object_defaults(this, var_info);
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};
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// set_update_rate - set update rate to motors
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void set_update_rate( uint16_t speed_hz ) override;
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// output_test_seq - spin a motor at the pwm value specified
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virtual void output_test_seq(uint8_t motor_seq, int16_t pwm) override;
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// output_to_motors - sends values out to the motors
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void output_to_motors() override;
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// set_rpm - for rotor speed governor
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void set_rpm(float rotor_rpm) override;
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// set_desired_rotor_speed - sets target rotor speed as a number from 0 ~ 1000
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void set_desired_rotor_speed(float desired_speed) override;
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// get_estimated_rotor_speed - gets estimated rotor speed as a number from 0 ~ 1000
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float get_main_rotor_speed() const override { return _main_rotor.get_rotor_speed(); }
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// get_desired_rotor_speed - gets target rotor speed as a number from 0 ~ 1000
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float get_desired_rotor_speed() const override { return _main_rotor.get_rotor_speed(); }
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// rotor_speed_above_critical - return true if rotor speed is above that critical for flight
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bool rotor_speed_above_critical() const override { return _main_rotor.get_rotor_speed() > _main_rotor.get_critical_speed(); }
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// get_governor_output
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float get_governor_output() const override { return _main_rotor.get_governor_output(); }
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// get_control_output
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float get_control_output() const override { return _main_rotor.get_control_output(); }
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// calculate_scalars - recalculates various scalars used
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void calculate_scalars() override;
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// calculate_armed_scalars - recalculates scalars that can change while armed
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void calculate_armed_scalars() override;
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// get_motor_mask - returns a bitmask of which outputs are being used for motors or servos (1 means being used)
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uint16_t get_motor_mask() override;
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// has_flybar - returns true if we have a mechical flybar
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bool has_flybar() const override { return AP_MOTORS_HELI_NOFLYBAR; }
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// supports_yaw_passthrought - returns true if we support yaw passthrough
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bool supports_yaw_passthrough() const override { return false; }
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// servo_test - move servos through full range of movement
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void servo_test() override;
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// parameter_check - returns true if helicopter specific parameters are sensible, used for pre-arm check
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bool parameter_check(bool display_msg) const override;
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// var_info for holding Parameter information
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static const struct AP_Param::GroupInfo var_info[];
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protected:
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// init_outputs
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bool init_outputs () override;
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// update_motor_controls - sends commands to motor controllers
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void update_motor_control(RotorControlState state) override;
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// get_swashplate - calculate movement of each swashplate based on configuration
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float get_swashplate(int8_t swash_num, int8_t swash_axis, float pitch_input, float roll_input, float yaw_input, float coll_input);
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// move_actuators - moves swash plate to attitude of parameters passed in
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void move_actuators(float roll_out, float pitch_out, float coll_in, float yaw_out) override;
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// objects we depend upon
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AP_MotorsHeli_Swash _swashplate1; // swashplate1
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AP_MotorsHeli_Swash _swashplate2; // swashplate2
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// internal variables
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float _oscillate_angle = 0.0f; // cyclic oscillation angle, used by servo_test function
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float _servo_test_cycle_time = 0.0f; // cycle time tracker, used by servo_test function
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float _collective_test = 0.0f; // over-ride for collective output, used by servo_test function
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float _roll_test = 0.0f; // over-ride for roll output, used by servo_test function
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float _pitch_test = 0.0f; // over-ride for pitch output, used by servo_test function
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float _servo_out[8]; // output value sent to motor
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// parameters
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AP_Int16 _collective2_min; // Lowest possible servo position for the rear swashplate
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AP_Int16 _collective2_max; // Highest possible servo position for the rear swashplate
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AP_Int16 _collective2_mid; // Swash servo position corresponding to zero collective pitch for the rear swashplate (or zero lift for Asymmetrical blades)
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AP_Int8 _dual_mode; // which dual mode the heli is
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AP_Float _dcp_scaler; // scaling factor applied to the differential-collective-pitch
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AP_Float _dcp_yaw_effect; // feed-forward compensation to automatically add yaw input when differential collective pitch is applied.
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AP_Float _yaw_scaler; // scaling factor applied to the yaw mixing
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// internal variables
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float _collective2_mid_pct = 0.0f; // collective mid parameter value for rear swashplate converted to 0 ~ 1 range
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};
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