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Application of linear splines to internal combustion engine control

A linear, vehicle control technology, applied in general control systems, control/regulation systems, instruments, etc., to solve problems such as undesired system performance, discontinuity in system behavior, and discontinuity

Inactive Publication Date: 2009-10-14
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for the jump linear method, the system behavior is discontinuous when crossing the graph boundary
Such discontinuities can lead to undesired system performance

Method used

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  • Application of linear splines to internal combustion engine control
  • Application of linear splines to internal combustion engine control
  • Application of linear splines to internal combustion engine control

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Embodiment Construction

[0016] The following description of the preferred embodiments is only illustrative, and is not intended to limit the application or use of the present invention. For simplicity, the same symbols in the drawings represent similar components. As used herein, modules and / or devices refer to application specific integrated circuits (ASICs), electronic circuits, processors (shared, dedicated or grouped) that execute one or more software or firmware programs, and memory, Combining logic circuits, and / or other suitable components that provide the functions described.

[0017] The invention allows the application of linear control design methods to nonlinear systems. The linear spline diagram method provides a practical and universal method to model a nonlinear system into a diagrammatic linear system. More specifically, the present invention relates to the application of linear splines to internal combustion engine control. The linear spline graphs the parameters of a linear system to re...

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Abstract

A vehicle control parameter modeling system includes a first model, which expresses the control parameters by linear spline basis functions, coefficients and knots. A second model is obtained from the first model, which includes coefficients obtained from linear spline basis functions, coefficients and knots, and forms a linear equation of the control parameters. The storage module stores linear equations. The control module can calculate the control parameters according to the linear equation.

Description

Technical field [0001] The present invention generally relates to an internal combustion engine control method, and specifically relates to the use of linear splines to determine the nonlinear behavior of the internal combustion engine. Background technique [0002] Automotive powertrains require precise control systems to meet government regulations and customer expectations. Manufacturers of powertrain control systems recognize the benefits of applying analytical control system design methods to develop and calibrate their products. The precise control system provides improved performance, reduces variation and reduces correction work. [0003] Analyze the control system design through differential equation engineering design (or differential equation engineering design for discrete-time systems) to apply control theory to vehicle systems. Generally, analyzing the control system design includes modeling the physical system into a differential equation, and determining the new d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B17/02
Inventor K·P·杜德克
Owner GM GLOBAL TECH OPERATIONS LLC