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Diffstat (limited to 'src/lib/ecl/attitude_fw/ecl_roll_controller.h')
-rw-r--r-- | src/lib/ecl/attitude_fw/ecl_roll_controller.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/src/lib/ecl/attitude_fw/ecl_roll_controller.h b/src/lib/ecl/attitude_fw/ecl_roll_controller.h new file mode 100644 index 000000000..7fbcdf4b8 --- /dev/null +++ b/src/lib/ecl/attitude_fw/ecl_roll_controller.h @@ -0,0 +1,100 @@ +/**************************************************************************** + * + * Copyright (c) 2013 Estimation and Control Library (ECL). All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name APL nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/** + * @file ecl_roll_controller.h + * Definition of a simple orthogonal roll PID controller. + * + */ + +#ifndef ECL_ROLL_CONTROLLER_H +#define ECL_ROLL_CONTROLLER_H + +#include <stdbool.h> +#include <stdint.h> + +class __EXPORT ECL_RollController +{ +public: + ECL_RollController(); + + float control(float roll_setpoint, float roll, float roll_rate, + float scaler = 1.0f, bool lock_integrator = false, float airspeed_min = 0.0f, float airspeed_max = 0.0f, float airspeed = (0.0f / 0.0f)); + + void reset_integrator(); + + void set_time_constant(float time_constant) { + if (time_constant > 0.1f && time_constant < 3.0f) { + _tc = time_constant; + } + } + void set_k_p(float k_p) { + _k_p = k_p; + } + void set_k_i(float k_i) { + _k_i = k_i; + } + void set_k_d(float k_d) { + _k_d = k_d; + } + void set_integrator_max(float max) { + _integrator_max = max; + } + void set_max_rate(float max_rate) { + _max_rate = max_rate; + } + + float get_rate_error() { + return _rate_error; + } + + float get_desired_rate() { + return _rate_setpoint; + } + +private: + uint64_t _last_run; + float _tc; + float _k_p; + float _k_i; + float _k_d; + float _integrator_max; + float _max_rate; + float _last_output; + float _integrator; + float _rate_error; + float _rate_setpoint; + float _max_deflection_rad; +}; + +#endif // ECL_ROLL_CONTROLLER_H |