Model Predictive Control Systems And Methods For Increasing Computational Efficiency

摘要

A requesting module generates a first torque request for an engine based on driver input. A conversion module converts the first torque request into a second torque request. A model predictive control (MPC) module determines a current set of target values based on the second torque request, a model of the engine, a tableau matrix, and a basic solution matrix. The MPC module: initializes the basic solution matrix to a predetermined matrix that is dual feasible; selectively iteratively updates the basic solution matrix and columns of the tableau matrix; determines changes for the target values, respectively, based on entries of the basic solution matrix resulting from the selective iterative updating; and determines the current set of target values by summing the changes with a last set of target values, respectively. An actuator module controls an engine actuator based on a first one of the current set of target values.

主权项

1. An engine control system for a vehicle, comprising:
a torque requesting module that generates a first torque request for a spark ignition engine based on driver input; a torque conversion module that converts the first torque request into a second torque request; a model predictive control (MPC) module that determines a current set of target values based on the second torque request, a model of the engine, a tableau matrix, and a basic solution matrix, wherein the MPC module:
initializes the basic solution matrix to a predetermined matrix that is dual feasible;selectively iteratively updates the basic solution matrix and columns of the tableau matrix;determines changes for the target values, respectively, based on entries of the basic solution matrix resulting from the selective iterative updating; anddetermines the current set of target values by summing the changes with a last set of target values, respectively; and an actuator module that controls an engine actuator based on a first one of the current set of target values.