公开(公告)号：US08361306B2

公开(公告)日：2013-01-29

申请号：US12630423

申请日：2009-12-03

申请人： Satoshi Teramoto ,  Hirotaka Onogi ,  Koji Shiotani ,  Kenji Kato ,  Takashi Kawai

发明人： Satoshi Teramoto ,  Hirotaka Onogi ,  Koji Shiotani ,  Kenji Kato ,  Takashi Kawai

IPC分类号： G01N27/26 ,  G01N27/417

CPC分类号： G01N27/419

摘要： There is provided a control apparatus for a gas sensor, which has a sensor element equipped with first and second oxygen pumping cells. The sensor control apparatus is configured to drive the first oxygen pumping cell to adjust the oxygen concentration of gas under measurement, drive the second oxygen pumping cell to produce a flow of electric current according to the amount of oxygen pumped out of the oxygen concentration adjusted gas by the second oxygen pumping cell, perform specific drive control to control the amount of oxygen pumped by the second oxygen pumping cell to a predetermined level after startup of the sensor element and before the application of the drive voltage between the electrodes of the second oxygen pumping cell.

摘要翻译： 提供了一种用于气体传感器的控制装置，其具有配备有第一和第二氧气泵浦单元的传感器元件。 传感器控制装置被配置为驱动第一氧气泵送单元以调节测量气体的氧气浓度，驱动第二氧气泵送单元，根据从氧浓度调节气体中抽出的氧气的量产生电流 通过第二氧气泵送单元，执行特定的驱动控制，以在启动传感器元件之后并且在第二氧气泵送电极之间施加驱动电压之前，将第二氧气泵浦单元泵浦的氧气量控制到预定水平 细胞。

公开(公告)号：US20100140113A1

公开(公告)日：2010-06-10

申请号：US12630423

申请日：2009-12-03

申请人： Satoshi TERAMOTO ,  Hirotaka Onogi ,  Koji Shiotani ,  Kenji Kato ,  Takashi Kawai

发明人： Satoshi TERAMOTO ,  Hirotaka Onogi ,  Koji Shiotani ,  Kenji Kato ,  Takashi Kawai

IPC分类号： G01N27/26

CPC分类号： G01N27/419

摘要： There is provided a control apparatus for a gas sensor, which has a sensor element equipped with first and second oxygen pumping cells. The sensor control apparatus is configured to drive the first oxygen pumping cell to adjust the oxygen concentration of gas under measurement, drive the second oxygen pumping cell to produce a flow of electric current according to the amount of oxygen pumped out of the oxygen concentration adjusted gas by the second oxygen pumping cell, perform specific drive control to control the amount of oxygen pumped by the second oxygen pumping cell to a predetermined level after startup of the sensor element and before the application of the drive voltage between the electrodes of the second oxygen pumping cell.

摘要翻译： 提供了一种用于气体传感器的控制装置，其具有配备有第一和第二氧气泵浦单元的传感器元件。 传感器控制装置被配置为驱动第一氧气泵送单元以调节测量气体的氧气浓度，驱动第二氧气泵送单元，根据从氧浓度调节气体中抽出的氧气的量产生电流 通过第二氧气泵送单元，执行特定的驱动控制，以在启动传感器元件之后并且在第二氧气泵送电极之间施加驱动电压之前，将第二氧气泵浦单元泵浦的氧气量控制到预定水平 细胞。

公开(公告)号：US08877024B2

公开(公告)日：2014-11-04

申请号：US12957641

申请日：2010-12-01

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

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

IPC分类号： G01N27/409 ,  G01N27/417

CPC分类号： G01N27/419 ,  F02D41/1454 ,  F02D41/146 ,  F02D41/1494 ,  F02D41/2432 ,  F02D41/2474 ,  G01N27/407

摘要： [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.

摘要翻译： [目的]本发明的目的是提供一种传感器控制装置和传感器控制装置控制方法，其可以在多次执行检测处理之间减少启动时间的变化，考虑到多个 气体传感器。 [解决方案]在传感器控制装置中，在开始驱动控制（S55〜S80）之前，执行预备控制，以便在恒定时间内向第二氧泵单元提供恒定电流，从而控制为恒定 将从第二测量室泵送的氧气量调整到第二测量室外（S40至50）。 在对于每个气体传感器确定的传感器控制装置的控制条件下执行预备控制，并且与从第二测量室泵送到其外部的氧气量相关联。 控制条件使目标范围成为在将具有已知浓度的参考气体引入气体传感器的状态下进行预控制之后开始的驱动控制开始后计算出的浓度对应值。

公开(公告)号：US09297778B2

公开(公告)日：2016-03-29

申请号：US13418903

申请日：2012-03-13

申请人： Hirotaka Onogi ,  Kenji Kato ,  Satoshi Teramoto

发明人： Hirotaka Onogi ,  Kenji Kato ,  Satoshi Teramoto

IPC分类号： G01N27/407

CPC分类号： G01N27/4074

摘要： A sensor control apparatus is disclosed, including a preliminary control for supplying a constant current to a second oxygen pump cell of a gas sensor for a constant period of time so as to control to a constant level the amount of oxygen pumped out from a second measurement chamber (S40 to S50). At the beginning of drive control (S55 to S80), oxygen is pumped back into the second measurement chamber. During the pumping back operation, an NOX concentration correspondence value has a large time course change and is not stable. The NOX concentration correspondence value is corrected using correction data common among gas sensors, wherein the timing for applying the correction data is adjusted by making use of an application time determined in accordance with individual differences of each gas sensor.

摘要翻译： 公开了一种传感器控制装置，其包括用于向恒定时间段的气体传感器的第二氧气泵室提供恒定电流的初步控制，以便将从第二测量泵出的氧气量控制在恒定水平 （S40〜S50）。 在驱动控制开始时（S55〜S80），氧被泵回第二测量室。 在抽吸操作期间，NOX浓度对应值具有大的时程变化并且不稳定。 使用在气体传感器中公知的校正数据来校正NO x浓度对应值，其中通过利用根据每个气体传感器的个体差异确定的施加时间来调整用于应用校正数据的定时。