# US 10,309,889 B2 · Exhaust gas analysis system, recording medium recorded with program for exhaust gas analysis system, and exhaust gas analyzing method

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- Number: US 10,309,889 B2
- Document ID: US10309889B2
- Status: Granted
- Kind: B2
- Application number: 15/603,491
- Filed: 2017-05-24
- Published: 2017-11-30
- Granted: 2019-06-04
- Earliest claimed: 2016-05-24
- Assignees: Horiba, Ltd.
- Applicants: HORIBA, Ltd.
- Inventors: Masatsune Tokuhira; Jungo Okada; Masahiro Higuchi
- Web page: https://patentgrep.com/patent/US10309889B2

## CPC

- G01N 15/0618: {of the filter type (G01N15/0643 takes precedence)}
- B01D 46/442: {by measuring the concentration of particles}
- F01N 3/021: by means of filters
- G01M 15/102: {by monitoring exhaust gases}
- G01N 1/2252: {in a vehicle exhaust}
- B01D 2279/30: for treatment of exhaust gases from IC Engines
- G01M 15/02: Details or accessories of testing apparatus
- G01N 2001/2255: {with dilution of the sample}
- G01N 2015/0046: {in gas, e.g. smoke}
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16)
- G01M: TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR

## Abstract

An exhaust gas analysis system is adapted to include an exhaust gas circulation line through which exhaust gas flows, an exhaust gas collection line adapted to collect the exhaust gas from the exhaust gas circulation line and introduce the collected exhaust gas into an exhaust gas analysis device, a continuous analysis line adapted to, separately from the diluted exhaust gas collection line, collect the exhaust gas from the exhaust gas circulation line for continuous analysis, a continuous analyzer provided in the continuous analysis line, and an information processing unit adapted to, on the basis of an analysis result by the continuous analyzer at the time of the collection into the exhaust gas analysis device, determine whether a measurement result of the exhaust gas introduced into the exhaust gas analysis device falls within a preset range, or determine a measurement range used to measure the exhaust gas introduced into the exhaust gas analysis device.

## Claims

### Claim 1

An exhaust gas analysis system comprising:
an exhaust gas circulation line through which exhaust gas flows;
an exhaust gas collection line configured to collect the exhaust gas from the exhaust gas circulation line and introduce the collected exhaust gas into an exhaust gas analysis device;
a continuous analysis line configured to, separately from the exhaust gas collection line, collect the exhaust gas from the exhaust gas circulation line for continuous analysis;
a continuous analyzer provided in the continuous analysis line and configured to measure concentration of a predetermined component contained in the exhaust gas; and
an information processing unit comprising
an analysis result acquisition part configured to acquire concentration measured by the continuous analyzer during a predetermined period at a time of the collection into the exhaust gas analysis device,
a calculation part configured to calculate an exhaust gas related value using the acquired concentration, wherein the exhaust gas related value is an average concentration of the predetermined component during the predetermined period, an integrated value of the predetermined component having flowed into the continuous analyzer during the predetermined period, or a fuel consumption during the predetermined period, and
a determination part configured to, by comparing the exhaust gas related value to a reference value, determine whether a measurement result of the exhaust gas introduced into the exhaust gas analysis device falls within a preset range.

### Claim 2 (depends on 1)

The exhaust gas analysis system according to claim 1, wherein
the predetermined period is shorter than a period from a start of the collection into the exhaust gas analysis device to an end of the collection, and
before the measurement result of the exhaust gas introduced into the exhaust gas analysis device is obtained, the determination part determines whether the measurement result falls within the preset range.

### Claim 3 (depends on 2)

The exhaust gas analysis system according to claim 2,
the exhaust gas analysis system running a vehicle in multiple preset running modes, and collecting exhaust gas discharged from an engine over the running modes into the exhaust gas analysis device for analysis, wherein
the predetermined period is set to a period from a start of each of the running modes to an end of that running mode, and
at an end of each of the running modes, the determination part determines whether a measurement result of the exhaust gas introduced into the exhaust gas analysis device falls within the preset range.

### Claim 4 (depends on 1)

The exhaust gas analysis system according to claim 1, wherein
the exhaust gas analysis device is a bag for collecting the exhaust gas or a filter for capturing particulate matter contained in the exhaust gas.

### Claim 5

An exhaust gas analyzing method using an exhaust gas analysis system comprising an exhaust gas circulation line through which exhaust gas flows, an exhaust gas collection line configured to collect the exhaust gas from the exhaust gas circulation line and introduce the collected exhaust gas into an exhaust gas analysis device, a continuous analysis line configured to, separately from the exhaust gas collection line, collect the exhaust gas from the exhaust gas circulation line for continuous analysis, a continuous analyzer provided in the continuous analysis line and configured to measure concentration of a predetermined component contained in the exhaust gas, and an information processing unit, the exhaust gas analyzing method comprising:
by the information processing unit,
acquiring concentration measured by the continuous analyzer during a predetermined period at a time of the collection into the exhaust gas analysis device,
calculating an exhaust gas related value using the acquired concentration, wherein the exhaust gas related value is an average concentration of the predetermined component during the predetermined period, an integrated value of the predetermined component having flowed into the continuous analyzer during the predetermined period, or a fuel consumption during the predetermined period, and
determining whether a measurement result of the exhaust gas introduced into the exhaust gas analysis device falls within a preset range by comparing the exhaust gas related value to a reference value.

### Claim 6

An exhaust gas analysis system comprising:
an exhaust gas circulation line through which exhaust gas flows;
an exhaust gas collection line configured to collect the exhaust gas from the exhaust gas circulation line and introduce the collected exhaust gas into an exhaust gas analysis device;
a continuous analysis line configured to, separately from the exhaust gas collection line, collect the exhaust gas from the exhaust gas circulation line for continuous analysis;
a continuous analyzer provided in the continuous analysis line and configured to measure concentration of a predetermined component contained in the exhaust gas; and
an information processing unit comprising
an analysis result acquisition part configured to acquire concentration measured by the continuous analyzer during a predetermined period at a time of the collection into the exhaust gas analysis device,
a calculation part configured to calculate an exhaust gas related value using the acquired concentration, wherein the exhaust gas related value is an average concentration of the predetermined component during the predetermined period, or an integrated value of the predetermined component having flowed into the continuous analyzer during the predetermined period, and
a determination part configured to determine, from the exhaust gas related value, a measurement range used to measure the exhaust gas introduced into the exhaust gas analysis device.

### Claim 7

An exhaust gas analyzing method using an exhaust gas analysis system comprising an exhaust gas circulation line through which exhaust gas flows, an exhaust gas collection line configured to collect the exhaust gas from the exhaust gas circulation line and introduce the collected exhaust gas into an exhaust gas analysis device, a continuous analysis line configured to, separately from the exhaust gas collection line, collect the exhaust gas from the exhaust gas circulation line for continuous analysis, a continuous analyzer provided in the continuous analysis line and configured to measure concentration of a predetermined component contained in the exhaust gas, and an information processing unit, the exhaust gas analyzing method comprising:
by the information processing unit,
acquiring concentration measured by the continuous analyzer during a predetermined period at a time of the collection into the exhaust gas analysis device,
calculating an exhaust gas related value using the acquired concentration, wherein the exhaust gas related value is an average concentration of the predetermined component during the predetermined period, or an integrated value of the predetermined component having flowed into the continuous analyzer during the predetermined period, and
determining, from the exhaust gas related value, a measurement range used to measure the exhaust gas introduced into the exhaust gas analysis device.