公开(公告)号：EP1961941B1

公开(公告)日：2018-08-29

申请号：EP08002666.9

申请日：2008-02-13

Applicant: NGK Spark Plug Co., Ltd. ,  SUZUKI MOTOR CORPORATION

Inventor： Fukagai, Reina ,  Ieda, Norikazu ,  Tanaka, Masahiro ,  Inagaki, Hiroshi ,  Hirata, Masaki ,  Suzuki, Takahiro

IPC: F02D41/14 ,  G01N27/41

CPC classification number: F02D41/1495 ,  F02D41/1456 ,  F02D41/1474 ,  F02D41/1494 ,  F02D2041/1432

Abstract: A gas sensor diagnostic method includes the steps of counting the reversal number of times that a target air-fuel ratio for an air-fuel mixture to be supplied to an internal combustion engine reverses from a rich side to a lean side or from the lean side to the rich side through a specific air-fuel ratio defined as a boundary of the rich and lean sides; obtaining a detection signal of a gas sensor at constant time intervals during a diagnosis period between a timing when the count for the reversal number is started and a timing when the reversal number reaches a predetermined number; calculating a moderated signal by applying a moderation calculation using a predetermined moderation coefficient to the obtained detection signal; calculating a deviation between the obtained detection signal and the calculated moderated signal; and determining whether the gas sensor is in an abnormal state or not on the basis of the deviation.

公开(公告)号：EP2330409B1

公开(公告)日：2018-06-27

申请号：EP10015238.8

申请日：2010-12-02

Applicant: NGK Spark Plug Co., Ltd.

Inventor： Kawai, Takeshi ,  Inagaki, Hiroshi ,  Shiotani, Koji ,  Onogi, Hirotaka ,  Teramoto, Satoshi

IPC: G01N27/407 ,  G01N27/419 ,  F02D41/14

CPC classification number: G01N27/419 ,  F02D41/1454 ,  F02D41/146 ,  F02D41/1494 ,  F02D41/2432 ,  F02D41/2474 ,  G01N27/407

Abstract: [Objective] An object is to provide a sensor control apparatus and a sensor-control-apparatus control method which can reduce variation in startup time among a plurality of times of execution of detection processing, in consideration of variation in output characteristic among a plurality of gas sensors. [Means for Solution] In a sensor control apparatus, before drive control (S55 to S80) is started, preliminary control is executed so as to supply a constant current to a second oxygen pump cell over a constant time, to thereby control to a constant level the amount of oxygen pumped from a second measurement chamber to the outside of the second measurement chamber (S40 to 50). The preliminary control is executed under control conditions of the sensor control apparatus which are determined for each gas sensor and are associated with the amount of oxygen pumped from the second measurement chamber to the outside thereof. The control conditions bring into a target range the concentration correspondence value calculated after start of the drive control which is started after the preliminary control is executed in a state in which a reference gas having a known concentration is introduced into the gas sensor.

公开(公告)号：EP2823171B1

公开(公告)日：2018-04-11

申请号：EP13707600.6

申请日：2013-02-25

Applicant: Volkswagen Aktiengesellschaft

Inventor： HAHN, Hermann

IPC: F02D41/14 ,  H05B1/02

CPC classification number: H05B1/0236 ,  F02D41/1494 ,  G05D23/1909 ,  G05D23/24

公开(公告)号：EP3049660A4

公开(公告)日：2017-05-10

申请号：EP14847213

申请日：2014-09-05

Applicant: CATERPILLAR INC

Inventor： REBINSKY DOUGLAS A

IPC: F02D41/14 ,  F02B77/08 ,  F02D33/00 ,  F02D35/00 ,  F02M31/135

CPC classification number: G01N33/225 ,  F02D19/024 ,  F02D19/029 ,  F02D41/0027 ,  F02D41/1494 ,  F02D41/3005 ,  F02D2200/0611 ,  F02M21/0215 ,  G01N25/18 ,  G01N25/20 ,  Y02T10/32

Abstract: A fuel quality sensor is provided for use with an engine system. The fuel quality sensor may have a single sensing element configured to sense a thermodynamic property of an unknown mixture of gaseous fuel, and a heating element configured to increase a temperature of the unknown mixture of gaseous fuel at the single sensing element to multiple different temperature levels. The fuel quality sensor may also include a microprocessor configured to calculate a fuel parameter of the unknown mixture of gaseous fuel as a function of only the thermodynamic property sensed at the multiple different temperature levels.

Abstract translation: 提供燃料质量传感器用于发动机系统。 燃料质量传感器可以具有被配置为感测气体燃料的未知混合物的热力学性质的单个感测元件，以及被配置为将在单个感测元件处的气体燃料的未知混合物的温度升高到多个不同温度水平的加热元件 。 燃料质量传感器还可以包括微处理器，该微处理器被配置成作为仅在多个不同温度水平下感测到的热力学性质的函数来计算气体燃料的未知混合物的燃料参数。

公开(公告)号：EP2336761A3

公开(公告)日：2016-06-08

申请号：EP10189696.7

申请日：2010-11-02

Applicant: Robert Bosch GmbH

Inventor： Schneider, Jens ,  Stanglmeier, Frank ,  Rosenland, Marc ,  Diehl, Lothar

IPC: G01N27/406 ,  G01N33/00

CPC classification number: G01N27/4067 ,  F02D41/027 ,  F02D41/1494 ,  F02D41/2474 ,  F02D2041/2024 ,  G01N27/4175

Abstract: Ein Verfahren zum Betreiben einer Sonde zur Bestimmung einer Gaszusammensetzung, insbesondere einer Abgassonde zur Bestimmung der Abgaszusammensetzung im Abgas einer Brennkraftmaschine, wobei die Sonde mittels einer impulsartig betriebenen Heizung auf Betriebstemperatur aufgeheizt wird, ist dadurch gekennzeichnet, dass Heizerschaltimpulse, die eine vorgebbare Charakteristik aufweisen, gezählt werden und aufgrund der Anzahl der Heizerschaltimpulse auf eine Alterung der Sonde geschlossen wird.

公开(公告)号：EP2716900B1

公开(公告)日：2015-08-12

申请号：EP12792406.6

申请日：2012-03-29

Applicant: Bosch Corporation

Inventor： TAKEDA Keiichi ,  NOGUCHI Ken

IPC: F02D45/00 ,  F02D17/00 ,  F02D29/02 ,  G01N27/409

CPC classification number: F01N11/007 ,  F02D41/1454 ,  F02D41/1494 ,  F02N11/0814 ,  G01N27/4067 ,  Y02T10/48

公开(公告)号：EP2869060A1

公开(公告)日：2015-05-06

申请号：EP14188263.9

申请日：2014-10-09

Applicant: Cummins IP Inc.

Inventor： Lin, Xiao ,  Chandrasekaran, Archana ,  Gong, Jinqian

IPC: G01N15/06 ,  G01K7/22 ,  G05D23/24

CPC classification number: G01N15/0656 ,  F01N2560/05 ,  F01N2560/20 ,  F02D41/1466 ,  F02D41/1494 ,  G01K7/22 ,  G01K15/005 ,  G01R27/08 ,  G05D23/2401

Abstract: The present disclosure relates to a system for regenerating a particulate matter sensor, the system comprising a particulate matter sensor comprising a sensing element and a heating element; a sensing module configured to detect a soot loading on the sensing element of the particulate matter sensor and generate a regeneration request indicating a desired regeneration temperature; a heating module configured to receive the regeneration request and send a heating command signal to the heating element based on the regeneration request; an electrical resistance module configured to detect an electrical resistance in the heating element; a calibration module configured to determine an actual temperature of the heating element based on a resistance-to-temperature response model; and a temperature feedback module configured to modify the heating command signal according to the difference between the desired regeneration temperature and the actual temperature.

Abstract translation: 本公开涉及一种用于再生颗粒物质传感器的系统，该系统包括包含传感元件和加热元件的颗粒物质传感器; 感测模块​​，其被配置为检测所述颗粒物质传感器的感测元件上的烟灰负载并产生指示期望再生温度的再生请求; 加热模块，被配置为接收所述再生请求，并且基于所述再生请求向所述加热元件发送加热命令信号; 电阻模块，被配置为检测所述加热元件中的电阻; 校准模块，被配置为基于电阻 - 温度响应模型来确定所述加热元件的实际温度; 以及温度反馈模块，被配置为根据期望的再生温度和实际温度之间的差来修正加热命令信号。

公开(公告)号：EP2772621A4

公开(公告)日：2015-03-18

申请号：EP11874744

申请日：2011-10-26

Applicant: TOYOTA MOTOR CO LTD

Inventor： HASHIDA TATSUHIRO ,  NISHIJIMA HIROKI

IPC: F01N3/023 ,  F01N3/08 ,  F01N9/00 ,  G01N15/06 ,  G01N27/22

CPC classification number: F01N3/2066 ,  F01N3/023 ,  F01N3/035 ,  F01N9/00 ,  F01N11/00 ,  F01N13/008 ,  F01N13/009 ,  F01N2550/04 ,  F01N2560/05 ,  F01N2560/20 ,  F01N2610/02 ,  F01N2900/0416 ,  F01N2900/0418 ,  F01N2900/0421 ,  F01N2900/1616 ,  F01N2900/1812 ,  F01N2900/1821 ,  F02D41/1466 ,  F02D41/1494 ,  F02M26/00 ,  G01N15/0606 ,  G01N15/0656 ,  Y02T10/24 ,  Y02T10/47

公开(公告)号：EP2541027A3

公开(公告)日：2014-11-05

申请号：EP12173094.9

申请日：2012-06-22

Applicant: Delphi Technologies, Inc.

Inventor： Hocken, Lary Robert ,  Nelson, Charles Scott

IPC: F02D41/14 ,  F02D41/22 ,  F01N9/00 ,  G01N15/06

CPC classification number: F02D41/222 ,  F02D41/1466 ,  F02D41/1494 ,  G01N15/0656 ,  G01N27/041 ,  Y02T10/40

Abstract: A diagnostic method and system is described for diagnosing an operating condition of a conductive particulate matter sensor. The sensor has a substrate with electrical resistance that varies with temperature and two electrodes on the substrate adapted to collect particulate matter between the electrodes, thereby establishing an electrically conductive path through collected particulate matter between the electrodes that can be detected by measuring electrical resistance between the electrodes, R elect . The diagnosis is performed by heating the substrate in the area between the electrodes and using the resistance between the electrodes to determine detecting whether contamination is present on the surface of the sensor. Heat may be maintained on the sensor to attempt to bum off a detected contaminant, and a subsequent resistance reading may be used to determine if the contaminant was successfully burned off.

公开(公告)号：EP1832735A3

公开(公告)日：2014-01-15

申请号：EP07103352.6

申请日：2007-03-01

Applicant: Nissan Motor Company Limited

Inventor： ABE, Hiroshi, c/o Nissan Technical Centre

IPC: F02D41/14 ,  F02N11/08 ,  F02D41/04

CPC classification number: F02D41/1494 ,  F02D41/042 ,  F02D2041/1472 ,  F02D2200/0414 ,  F02D2200/0418 ,  F02D2200/703 ,  F02N11/0818

Abstract: A vehicle control apparatus and methodology relate to an exhaust gas sensor and sensor heater associated with an exhaust passage of a vehicle engine. The exhaust gas sensor is selectively heated to an applicable activation temperature by the heater so that the sensor may output a normal and accurate sensing signal. The heating must take place, however, without causing damage to the sensor such as that resulting from condensation that may occur within the exhaust passage as a result of engine operation and environmental conditions.