Releases: nicolapiccinelli/libmpc
Releases · nicolapiccinelli/libmpc
0.6.1
0.6.0
Added
- Added support for input and state bound constraints in the non-linear mpc. These constraints are actually restricing the search space of the optimization problem
and are obeyed by the solver also during intermediate steps of the optimization problem - Added warm start support in the non-linear mpc. The warm start is disabled by default and can be enabled using the parameter
enable_warm_start
Changed
- Breaking change: The stopping criterias in the non-linear mpc parameters are now disabled by default. The only enabled criteria is the maximum number of iterations
- Breaking change: The optimal sequence returned by the linear and non-linear mpc is now containing also the initial condition
- The Jacobians of the constraints in the non-linear mpc are now estimated using the trapeizoial rule
- The functions to set the bound constraints now uses a dedicated structure to define the horizon span
- Breaking change: The functions setConstraints are now split in setStateBounds, setInputBounds and setOutputBounds
- Breaking change: The fields retcode and status_msg in the result struct of the non-linear mpc are now solver_status and solver_status_msg respectively
0.5.0
Added
- Python bindings for the library using pybind11 (pympcxx)
- The result struct now contains a string to describe the status of the optimization problem
- Added new parameters for the nonlinear mpc (time_limit, absolute_ftol, absolute_xtol)
Changed
- Breaking change: some of the APIs have been refactored. New APIs: setDiscretizationSamplingTime, setExogenousInputs, optimize
substitute setContinuosTimeModel, setExogenuosInputs, step - Improved error handling in the NLopt interface
Fixed
- The set of the discretization sampling time was not working properly in the non-linear mpc
0.4.2
Added
- Added examples to show how to use the library
Fixed
- Fixed the cmake target configuration to properly target the library
0.4.1
Changed
- Removed coloured output for the integrated logger
- Configure script now can be used to avoid the installation of the test suite
Fixed
- Fixed dockerfile to use the 0.6.3 version of the OSQP solver
0.4.0
Added
- Added profiler to measure statistics of the optimization problem
- In linear mpc is now possible to override the warm start of the optimization problem
- Added support for OSQP warm start in linear mpc
Changed
- The linear mpc parameters now allows enabling the warm start of the optimization problem
- The mpc result structure now contains a status field to check if the optimization problem has been solved
- CMakelists.txt has been refactored to export the INCLUDE_DIRS variable
0.3.1
Fixed
- The computation of the scalar multipler was not correct
0.3.0
Added
- Added new api in linear mpc to add a scalar constraints
Changed
- In linear mpc the last input command is now used to initialize the optimal control problem
Fixed
- The default value for the box constraints in linear mpc are now set -inf and inf
- In linear mpc optimal input sequence was erroneously the delta input sequence
0.2.0
Added
- Improved performances of non-linear mpc
Changed
- Added support in non-linear for output penalization in the objective function (Breaking change)
- In non-linear prediction step index is now available in the model update function (Breaking change)
0.1.0
Added
- Added support in linear mpc to define the references, weights, constraints and exogenous inputs different in each prediction step
- Added general support to the retrival of the optimal sequence (state, input and output)
Changed
- The API to set the references, weights constraints and exogenous inputs using vector now requires a span of the horizon (Breaking changes)
- Added new APIs to define the references, weights, constraints and exogenous inputs matrices to the whole horizon
- Internal structure of the library has been refactored to separate non-linear and linear classes