VEHICLE-MOUNTED EXHAUST GAS ANALYSIS DEVICE AND EXHAUST GAS ANALYSIS METHOD

WIPO Patent Application WO/2022/163074

A1

To make it possible to accurately analyze particulate matter included in exhaust gas emitted from stop-start vehicles and hybrid vehicles, including plug-in types, this invention is made to comprise a recirculation path L2 that branches from a branching point L1a provided between an analyzer X that is provided in a sample flow path L1 through which exhaust gas from an engine E flows and a diluter MIX and joins with the diluter MIX, a pump P provided in the recirculation path L2, an additional flow path L3 that is connected to the recirculation path L2 and leads to the atmosphere, a filter F3 provided in the additional flow path L3, an opening and closing mechanism V1 provided in the additional flow path L3, an engine information acquisition unit 21 for acquiring on/off information for the engine E, an engine state determination unit 22 for determining whether the engine E is on or off, and an opening and closing control unit 23 for closing the opening and closing mechanism V1 if a determination is made that the engine E is on and opening the opening and closing mechanism V1 if a determination is made that the engine E is off.

JPH04191634	LIQUID SAMPLE ANALYZER
JP2023537000	Test device with integrated liquid reservoir
JP2023506931	Device

KONDO KENJI (JP)
OKUI NOBUNORI (JP)

PCT/JP2021/042012

August 04, 2022

November 16, 2021

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HORIBA LTD (JP)

G01N1/00; G01N1/22

JP2014526679A	2014-10-06
JP2017062255A	2017-03-30
JP2019086492A	2019-06-06
JP2010261938A	2010-11-18
JP2016212084A	2016-12-15

NISHIMURA, Ryuhei (JP)

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