A control apparatus for controlling a plant by using a delta-sigma modulation algorithm

一种控制装置、调制算法的技术，应用在计算机控制、通用控制系统、阀装置等方向，能够解决不能处理摩擦特性的变动等问题，达到改善稳定性、改善操纵性能、降低喘振的效果

Inactive Publication Date: 2005-09-14
HONDA MOTOR CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

However, this current control cannot handle the variation of friction characteristics

Method used

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  • A control apparatus for controlling a plant by using a delta-sigma modulation algorithm
  • A control apparatus for controlling a plant by using a delta-sigma modulation algorithm
  • A control apparatus for controlling a plant by using a delta-sigma modulation algorithm

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Embodiment Construction

[0040] Specific embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a block diagram showing an internal combustion engine (hereinafter referred to as an engine) and a control device for the engine according to one embodiment of the present invention.

[0041] An electronic control unit (hereinafter referred to as ECU) 1 includes: an input interface 1a for receiving data sent from various components of the vehicle; a CPU 1b for performing operations for controlling various components of the vehicle; a memory 1c including read-only memory (ROM) and random access memory (RAM); and, an output interface 1d for sending control signals to various components of the vehicle. In the ROM of the memory 1c are stored programs for controlling various components of the vehicle and various data. A program for realizing the control according to the present invention is stored in this ROM. The ROM may be a rewritable ROM such as EPROM....

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Abstract

The invention provides a control apparatus comprising a controller for determining a manipulated variable for manipulating a controlled object so that an output of the controlled object converges to a desired value and a modulator for modulating the manipulated variable by using one of a delta-sigma modulation algorithm, a sigma-delta modulation algorithm and a delta modulation algorithm to generate a modulated signal to be applied to the controlled object. The modulator generates the modulated signal so that a center value of an amplitude of the modulated signal follows a change of the manipulated variable. Thus, the modulated signal in which the manipulated variable is reflected without any loss can be generated even when the manipulated variable changes.

Description

technical field [0001] The present invention relates to a control device for precise control of equipment by using a ΔΣ modulation algorithm. Background technique [0002] A method of controlling a device (a control target) using a ΔΣ modulation algorithm (or a ΣΔ modulation algorithm or a Δ modulation algorithm) is known (see Patent Document 1). As long as the plant arrangement is capable of generating a suitable control output in response to a control input having an on / off switching characteristic, the plant can be precisely controlled by a delta-sigma modulation algorithm. [0003] Figure 15 is a block diagram representing an example of a control scheme using a ΔΣ modulation algorithm. The controller 101 calculates an operation amount for converging the control amount of the facility to a target value. The modulator 102 modulates the manipulated variable using a ΔΣ modulation algorithm. The modulated operation amount is input to the device 103 . The output of the de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D35/00F02D41/14
CPCF01L1/3442F02D13/0207F02D35/0007F01L2001/3443F02D2041/001F02D41/1403F02D41/0002F01L2800/05F02D41/1401Y10T137/2278
Inventor 安井裕司
Owner HONDA MOTOR CO LTD
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