Combustion system controller

Patent metadata

Field	Value
Publication number	US-9845755-B2
Application number	US-201615176578-A
Country	US
Kind code	B2
Filing date	Jun 8, 2016
Priority date	Jun 11, 2015
Publication date	Dec 19, 2017
Grant date	Dec 19, 2017

Abstract

A combustion system controller controls an operation of a combustion system including an internal combustion engine. The combustion system controller includes a mixing ratio acquisition portion and a control portion. The mixing ratio acquisition portion acquires the mixing ratios of various components included in a fuel. The control portion controls the operation of the combustion system based on the mixing ratios acquired by the mixing ratio acquisition portion.

First claim

What is claimed is:

1. A combustion system controller controlling an operation of a combustion system including an internal combustion engine, comprising:
a mixing ratio acquisition portion acquiring mixing ratios of various components included in a fuel; and
a control portion controlling the operation of the combustion system based on the mixing ratios acquired by the mixing ratio acquisition portion;
an emission estimation portion estimating a generation level of a specified component included in an exhaust gas of the internal combustion engine, based on the mixing ratios, wherein
the control portion controls the operation of the combustion system, at least based on an estimation result of the emission estimation portion.

2. The combustion system controller according to claim 1 , wherein
the component that is an estimation object of the mixing ratio is a component that is divided by types of a molecular structure.

3. The combustion system controller according to claim 2 , wherein
the types of the molecular structure include at least one of a normal paraffin type, an isoparaffin type, a naphthenic type, or an aromatic type.

4. The combustion system controller according to claim 1 , further comprising:
a combustion environment acquisition portion acquiring at least one of a temperature in a combustion chamber of the internal combustion engine, a flow rate of a mixing gas in the combustion chamber, or an oxygen concentration in the combustion chamber, in a combustion environment before a combustion of the fuel occurs in the combustion chamber, wherein
the control portion controls the operation of the combustion system, based on the mixing ratios and an estimation result of the combustion environment acquisition portion.

5. The combustion system controller according to claim 1 , further comprising:
a combustion state estimation portion estimating a combustion state of the fuel in the internal combustion engine, based on the mixing ratios, wherein
the control portion controls the operation of the combustion system, at least based on an estimation result of the combustion state estimation portion.

6. The combustion system controller according to claim 1 , further comprising:
an injection state estimation portion estimating an injection state of the fuel injected into a combustion chamber of the internal combustion engine, based on the mixing ratios, wherein
the control portion controls the operation of the combustion system, at least based on an estimation result of the injection state estimation portion.

7. A combustion system controller controlling an operation of a combustion system including an internal combustion engine, comprising:
a mixing ratio acquisition portion acquiring mixing ratios of various components included in a fuel;
a control portion controlling the operation of the combustion system based on the mixing ratios acquired by the mixing ratio acquistion portion; and
a combustion state estimation portion estimating a combustion state of the fuel in the internal combustion engine, based on the mixing ratios, wherein
the control portion controls the operation of the combustion system, at least based on an estimation result of the combustion state estimation portion.

8. A combustion system controller controlling an operation of a combustion system including an internal combustion engine, comprising:
a mixing ratio acquisition portion acquiring mixing ratios of various components included in a fuel;
a control portion controlling the operation of the combustion system based on the mixing ratios acquired by the mixing ratio acquisition portion; and
an injection state estimation portion estimating an injection state of the fuel injected into a combustion chamber of the internal combustion engine, based on the mixing ratios, wherein
the control portion controls the operation of the combustion system, at least based on an estimation result of the injection state estimation portion.

Assignees

• Denso Corp

Inventors

• Hoshi Shinya
• Okabayashi Atsunori

Classifications

• F02D2250/38

  Control for minimising smoke emissions, e.g. by applying smoke limitations on the fuel injection amount · CPC title

• F02D41/144

  Sensor in intake manifold · CPC title

• F02D41/0025

  Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures · CPC title

• F02D19/0636

  by estimation, i.e. without using direct measurements of a corresponding sensor · CPC title

• F02D2200/0612

  determined by estimation · CPC title