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/*
* This file is part of ACADO Toolkit.
*
* ACADO Toolkit -- A Toolkit for Automatic Control and Dynamic Optimization.
* Copyright (C) 2008-2014 by Boris Houska, Hans Joachim Ferreau,
* Milan Vukov, Rien Quirynen, KU Leuven.
* Developed within the Optimization in Engineering Center (OPTEC)
* under supervision of Moritz Diehl. All rights reserved.
*
* ACADO Toolkit is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* ACADO Toolkit is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with ACADO Toolkit; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
/**
* \file include/acado/simulation_environment/simulation_environment.hpp
* \author Hans Joachim Ferreau, Boris Houska
*/
#ifndef ACADO_TOOLKIT_SIMULATION_ENVIRONMENT_HPP
#define ACADO_TOOLKIT_SIMULATION_ENVIRONMENT_HPP
#include <acado/utils/acado_utils.hpp>
#include <acado/simulation_environment/simulation_block.hpp>
#include <acado/clock/clock.hpp>
#include <acado/curve/curve.hpp>
#include <acado/process/process.hpp>
#include <acado/controller/controller.hpp>
BEGIN_NAMESPACE_ACADO
/**
* \brief Allows to run closed-loop simulations of dynamic systems.
*
* \ingroup UserInterfaces
*
* The class Simulation Environment is designed to run closed-loop simulations
* of dynamic systems.
*
* In a standard setup the Simulation Environment consists of a Process and a
* Controller that are connected by signals. These two main members can be specified
* within the constructor or set afterwards by using the methods "setController" and
* "setProcess" , respectively.
*
* A simulation has to be initialized by providing the initial value of the differential
* states of the dynamic system to be simulated. Afterwards, the simulation can be run
* at once or stepped until a given intermediate time.
*
* \author Hans Joachim Ferreau, Boris Houska
*
*/
class SimulationEnvironment : public SimulationBlock
{
//
// PUBLIC MEMBER FUNCTIONS:
//
public:
/** Default constructor.
*/
SimulationEnvironment( );
/** Constructor which takes the name of the block and the sampling time.
*
* @param[in] _startTime Start time of the simulation.
* @param[in] _endTime End time of the simulation.
* @param[in] _process Process used for simulating the dynamic system.
* @param[in] _controller Controller used for controlling the dynamic system.
*
* \note Only pointers to Process and Controller are stored!
*/
SimulationEnvironment( double _startTime,
double _endTime,
Process& _process,
Controller& _controller
);
/** Copy constructor (deep copy).
*
* @param[in] rhs Right-hand side object.
*/
SimulationEnvironment( const SimulationEnvironment &rhs
);
/** Destructor.
*/
virtual ~SimulationEnvironment();
/** Assignment Operator (deep copy).
*
* @param[in] rhs Right-hand side object.
*/
SimulationEnvironment& operator=( const SimulationEnvironment &rhs
);
/** Assigns new process block to be used for simulation.
*
* @param[in] _process New process block.
*
* \note Only a pointer is stored!
*
* \return SUCCESSFUL_RETURN
*/
returnValue setProcess( Process& _process
);
/** Assigns new controller block to be used for simulation.
*
* @param[in] _controller New controller block.
*
* \note Only a pointer is stored!
*
* \return SUCCESSFUL_RETURN
*/
returnValue setController( Controller& _controller
);
/** Initializes algebraic states of the process.
*
* @param[in] _xa_init Initial value for algebraic states.
*
* \return SUCCESSFUL_RETURN
*/
returnValue initializeAlgebraicStates( const VariablesGrid& _xa_init
);
/** Initializes algebraic states of the process from data file.
*
* @param[in] fileName Name of file containing initial value for algebraic states.
*
* \return SUCCESSFUL_RETURN, \n
* RET_FILE_CAN_NOT_BE_OPENED
*/
returnValue initializeAlgebraicStates( const char* fileName
);
/** Initializes the simulation with given start values and
* performs a number of consistency checks.
*
* @param[in] x0_ Initial value for differential states.
* @param[in] p_ Initial value for parameters.
*
* \return SUCCESSFUL_RETURN, \n
* RET_ENVIRONMENT_INIT_FAILED, \n
* RET_NO_CONTROLLER_SPECIFIED, \n
* RET_NO_PROCESS_SPECIFIED, \n
* RET_BLOCK_DIMENSION_MISMATCH
*/
returnValue init( const DVector &x0_,
const DVector &p_ = emptyConstVector
);
/** Performs next step of the simulation.
*
* \return SUCCESSFUL_RETURN, \n
* RET_BLOCK_NOT_READY, \n
* RET_ENVIRONMENT_STEP_FAILED, \n
* RET_COMPUTATIONAL_DELAY_TOO_BIG
*/
returnValue step( );
/** Performs next steps of the simulation until given intermediate time.
*
* @param[in] intermediateTime Intermediate time.
*
* \return SUCCESSFUL_RETURN, \n
* RET_BLOCK_NOT_READY, \n
* RET_ENVIRONMENT_STEP_FAILED, \n
* RET_COMPUTATIONAL_DELAY_TOO_BIG, \n
* RET_INVALID_ARGUMENTS
*/
returnValue step( double intermediateTime
);
/** Runs the complete simulation.
*
* \return SUCCESSFUL_RETURN, \n
* RET_BLOCK_NOT_READY, \n
* RET_ENVIRONMENT_STEP_FAILED, \n
* RET_COMPUTATIONAL_DELAY_TOO_BIG
*/
returnValue run( );
/** Returns number of process outputs.
*
* \return Number of process outputs
*/
inline uint getNY( ) const;
/** Returns number of feedback controls.
*
* \return Number of feedback controls
*/
inline uint getNU( ) const;
/** Returns number of feedback parameters.
*
* \return Number of feedback parameters
*/
inline uint getNP( ) const;
/** Returns current number of simulation steps.
*
* \return Current number of simulation steps
*/
inline uint getNumSteps( ) const;
/** Returns continuous output of the process.
*
* @param[out] _processOutput Continuous output of the process.
*
* \return SUCCESSFUL_RETURN
*/
inline returnValue getProcessOutput( Curve& _processOutput
) const;
/** Returns output of the process at sampling instants.
*
* @param[out] _sampledProcessOutput Sampled output of the process.
*
* \return SUCCESSFUL_RETURN
*/
inline returnValue getSampledProcessOutput( VariablesGrid& _sampledProcessOutput
);
/** Returns differential states of the process over the whole simulation.
*
* @param[out] _diffStates Differential states of the process.
*
* \return SUCCESSFUL_RETURN
*/
inline returnValue getProcessDifferentialStates( VariablesGrid& _diffStates
);
/** Returns algebraic states of the process over the whole simulation.
*
* @param[out] _algStates Algebraic states of the process.
*
* \return SUCCESSFUL_RETURN
*/
inline returnValue getProcessAlgebraicStates( VariablesGrid& _algStates
);
/** Returns intermediate states of the process over the whole simulation.
*
* @param[out] _interStates Intermediate states of the process.
*
* \return SUCCESSFUL_RETURN
*/
inline returnValue getProcessIntermediateStates( VariablesGrid& _interStates
);
/** Returns feedback control signals of the controller over the whole simulation.
*
* @param[out] _feedbackControl Feedback control signals of the controller.
*
* \return SUCCESSFUL_RETURN
*/
inline returnValue getFeedbackControl( Curve& _feedbackControl
) const;
/** Returns feedback control signals of the controller over the whole simulation.
*
* @param[out] _sampledFeedbackControl Feedback control signals of the controller.
*
* \return SUCCESSFUL_RETURN
*/
inline returnValue getFeedbackControl( VariablesGrid& _sampledFeedbackControl
);
/** Returns feedback parameter signals of the controller over the whole simulation.
*
* @param[out] _feedbackParameter Feedback parameter signals of the controller.
*
* \return SUCCESSFUL_RETURN
*/
inline returnValue getFeedbackParameter( Curve& _feedbackParameter
) const;
/** Returns feedback parameter signals of the controller over the whole simulation.
*
* @param[out] _sampledFeedbackParameter Feedback parameter signals of the controller.
*
* \return SUCCESSFUL_RETURN
*/
inline returnValue getFeedbackParameter( VariablesGrid& _sampledFeedbackParameter
);
//
// PROTECTED MEMBER FUNCTIONS:
//
protected:
/** Sets-up default options.
*
* \return SUCCESSFUL_RETURN
*/
virtual returnValue setupOptions( );
/** Sets-up default logging information.
*
* \return SUCCESSFUL_RETURN
*/
virtual returnValue setupLogging( );
/** Returns computational delay used for simulation based on the actual real
* controller runtime and the options set by the user.
*
* @param[in] controllerRuntime Real controller runtime.
*
* \return Computational delay used for simulation
*/
double determineComputationalDelay( double controllerRuntime
) const;
//
// PROTECTED MEMBERS:
//
protected:
double startTime; /**< Start time of the simulation. */
double endTime; /**< End time of the simulation. */
Process* process; /**< Pointer to Process used for simulating the dynamic system. */
Controller* controller; /**< Pointer to Controller used for controlling the dynamic system. */
SimulationClock simulationClock; /**< Clock for managing the simulation time. */
Curve processOutput; /**< Curve storing output of the Process during the whole simulation. */
Curve feedbackControl; /**< Curve storing control signals from the Controller during the whole simulation. */
Curve feedbackParameter; /**< Curve storing parameter signals from the Controller during the whole simulation. */
uint nSteps; /**< Number of simulation steps (loops) that have been performed. */
};
CLOSE_NAMESPACE_ACADO
#include <acado/simulation_environment/simulation_environment.ipp>
#endif // ACADO_TOOLKIT_SIMULATION_ENVIRONMENT_HPP
/*
* end of file
*/