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Calibration systems and methods for model predictive controllers

A calibration system and predetermined value technology, applied in electrical control, program control, engine control, etc., can solve problems such as inability to accurately control engine output torque, inability to provide fast response to control signals, etc.

Active Publication Date: 2015-02-11
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional engine control systems cannot accurately control engine output torque as desired
In addition, conventional engine control systems cannot provide quick response to control signals or coordinate engine torque control among various devices that affect engine output torque

Method used

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  • Calibration systems and methods for model predictive controllers
  • Calibration systems and methods for model predictive controllers
  • Calibration systems and methods for model predictive controllers

Examples

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Embodiment Construction

[0119] The engine control module (ECM) controls the torque output of the engine. More specifically, the ECM controls the actuators of the engine to generate a requested amount of torque based on the target values, respectively. For example, the ECM controls intake and exhaust camshaft phasing based on target intake and exhaust phaser angles, throttle control based on target throttle opening, exhaust gas recirculation (EGR ) valve, and control the wastegate of the turbocharger based on the target wastegate duty cycle.

[0120] The ECM can individually determine the target value using multiple single-input single-output (SISO) controllers, such as proportional-integral-derivative (PID) controllers. However, when using multiple SISO controllers, target values ​​can be set to maintain system stability at the expense of possible fuel consumption reduction. Additionally, the calibration and design of individual SISO controllers can be costly and time consuming.

[0121] The ECM o...

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PUM

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Abstract

A tangible computer readable medium of a vehicle includes object code referencing a plurality of variables, the object code for: identifying sets of possible target values based on air and exhaust setpoints for an engine; generating predicted parameters based on a model of the engine and the sets of possible target values, respectively; selecting one of the sets of possible target values based on the predicted parameters; setting target values based on the selected one of the sets of possible target values, respectively; and controlling opening of a throttle valve based on a first one of the target values. The tangible computer readable medium also includes calibration data stored separately and that includes predetermined values for the variables referenced in the object code, respectively. At least one processor executes the object code using the predetermined values to perform the identifying, the generating, the selecting, the setting, and the controlling.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application Serial No. 61 / 861,498, filed August 2, 2013. The disclosures of the aforementioned applications are incorporated herein by reference in their entireties. technical field [0003] The present disclosure relates to control systems and methods for vehicles, and more particularly to systems and methods for calibrating a model predictive controller of a vehicle. Background technique [0004] The background description provided herein is for the purpose of generally presenting the context of the disclosure. The work of the presently named inventors (to the extent described in the Background section), and aspects of this description that are not otherwise considered prior art at the time of filing, are neither expressly nor implicitly admitted to be inconsistent with this disclosure existing technology. [0005] Internal combustion engines combust an air and...

Claims

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Application Information

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IPC IPC(8): F02D45/00
CPCF02D28/00F02D13/0219F02D41/1402F02D11/10F02D2041/1412F02D2041/1433F02D41/2464Y02T10/12
Inventor S.L.斯托尔奇J.A.肖尔K.C.王N.金
Owner GM GLOBAL TECH OPERATIONS LLC
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