PARTICULATE DETECTION DEVICE

WIPO Patent Application WO/2016/125436

A1

A particulate detection device according to one aspect of the present invention is provided with an insulating member (124), which is disposed in an exhaust passage (30) of an internal combustion engine (10) and has an adhesion surface (SF) to which exhaust particulates discharged from the internal combustion engine adhere. Provided to the adhesion surface of the particulate detection device are a plurality of electrodes (122, 123) formed apart from each other, an adhesion amount calculator (111) for calculating the amount of exhaust particulates adhering in the insulating member on the basis of the electrical resistance between the plurality of electrodes, a heater (125) for heating the insulating member, and controllers (112, 113) for controlling the operation of the internal combustion engine and the heater. During normal control, the controllers control the internal combustion engine so that the air/fuel ratio in the internal combustion engine reaches a theoretical air/fuel ratio. During regenerative control, the controllers control the internal combustion engine so that the temperature of the insulating member is raised by the control of the heater, the exhaust particulates adhering to the insulating member are burned away, and the air/fuel ratio in the internal combustion engine becomes leaner than the theoretical air/fuel ratio.

NAKATA SHINGO (JP)

PCT/JP2016/000282

August 11, 2016

January 21, 2016

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DENSO CORP (JP)

F01N3/00; F01N3/023; F01N3/18; F02D41/04

JP2012077668A	2012-04-19
JP2010106687A	2010-05-13
JP2012021419A	2012-02-02
JP2009144577A	2009-07-02

KIN, Junhi (JP)
Gold Junki (JP)

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