公开(公告)号：EP1793224A2

公开(公告)日：2007-06-06

申请号：EP06077100.3

申请日：2006-11-24

Applicant: Delphi Technologies, Inc.

Inventor： Wang, Da Yu ,  Kirwan, John E. ,  Symons, Walter Thomas ,  Kupe, Joachim ,  Farhat, Robert Jerome

IPC: G01N27/419

CPC classification number: G01N27/419 ,  H01M8/04089 ,  H01M8/0618

Abstract: A system (144) comprising a sensor (22), a reformer (146), a reformer electronic control module (150) and a sensor control module (152), wherein the sensor (22) includes an oxygen pump cell (24); an oxygen pump chamber (26); an emf cell (32); a reference chamber (34) providing a fluid connection to the reference gas (30); gas channels in fluid communication with the pump (48,52) and emf electrodes (64,66), the reference gas (30) comprising reformate produced by fuel reformer (146) fuelled by an air-fuel gas mixture having an air-fuel ratio; a heater (72); a temperature sensor (70) disposed in communication with the heater (72) and the sensor control module (152) for maintaining the sensor (22) at a desired operating temperature; a closed loop controlled operation amplifier (40) in electrical communication with the sensor (22), whereby the oxygen pump cell (24) provides sufficient oxygen ions to oxidize an incoming diffusion-limiting fuel flux to the emf cell (32) and maintain a constant emf at the emf cell (32), and wherein a current value represents an equivalent to the air-fuel ratio of the air-fuel gas mixture.

Abstract translation: 一种包括传感器（22），重整器（146），重整器电子控制模块（150）和传感器控制模块（152）的系统（144），其中传感器（22）包括氧气泵室（24）; 氧气泵室（26）; 电磁池（32）; 提供与参考气体（30）的流体连接的参考室（34）; 与泵（48,52）和emf电极（64,66）流体连通的气体通道，包括由具有空气燃料的空气 - 燃料气体混合物燃料的燃料重整器（146）产生的重整产品的参考气体（30） 比; 加热器（72）; 设置成与所述加热器（72）连通的温度传感器（70）和所述传感器控制模块（152），用于将所述传感器（22）保持在期望的操作温度; 与所述传感器（22）电连通的闭环控制运算放大器（40），由此所述氧泵电池（24）提供足够的氧离子以氧化进入到所述电磁室（32）的扩散限制性燃料通量并维持 emf电池（32）的恒定电动势，其中电流值表示空气 - 燃料气体混合物的空燃比。

公开(公告)号：EP1219961A1

公开(公告)日：2002-07-03

申请号：EP01204815.3

申请日：2001-12-10

Applicant: Delphi Technologies, Inc.

Inventor： Tai, Lone-Wen F. ,  Kikuchi, Paul Casey ,  Symons, Walter Thomas

IPC: G01N27/407

CPC classification number: G01N27/4071

Abstract: A heater (38) for a gas sensor has a first thermistor element (62) and a second thermistor element (63) arranged in an electrically parallel configuration. Each thermistor element (62, 63) may be deposited onto a substrate (52) such that the first thermistor element (62) extends about a perimeter of the substrate (52) and the second thermistor element (63) extends across a portion of the substrate (52) intermediate the perimeter of the substrate (52). The thermistor elements (62, 63) are preferably fabricated of materials having differing thermal coefficients of resistivity. A method of heating the gas sensor includes disposing the two thermistor elements (62, 63) in an electrically parallel configuration over a surface of the substrate (52) and passing an electric current through the elements (62, 63).

Abstract translation: 用于气体传感器的加热器具有以电气并联构造布置的第一热敏电阻元件和第二热敏电阻元件。 每个热敏电阻元件可以沉积到基板上，使得第一热敏电阻元件围绕基板的周边延伸，并且第二热敏电阻元件延伸穿过衬底的位于衬底的周边的部分。 热敏电阻元件优选由具有不同的电阻率系数的材料制成。 一种加热气体传感器的方法包括将两个热敏电阻元件以电气平行的形式布置在衬底的表面上并使电流通过元件。

公开(公告)号：EP1219960A1

公开(公告)日：2002-07-03

申请号：EP01204816.1

申请日：2001-12-10

Applicant: Delphi Technologies, Inc.

Inventor： Tai, Lone-Wen F. ,  kikuchi, Paul Casey ,  Symons, Walter Thomas

IPC: G01N27/406

CPC classification number: G01N27/4067 ,  Y10T29/49007 ,  Y10T29/49083

Abstract: A heater pattern for a heater (38) of a gas sensor in which a temperature profile is manipulated utilizes a thermistor element (63) arranged in an electrically serial configuration and disposed on a substrate (52). The thermistor element (63) is arranged so as to define an edge pattern (64) extending about a perimeter of the substrate (52) and a center pattern (66) serially connected to the edge pattern (64). The center pattern (66) extends over a portion of the substrate (52) that is intermediate the perimeter of the substrate (52). In a preferred embodiment, the thermistor element (63) is screen printed onto the substrate (52) to a thickness of about 5 microns to about 50 microns, and preferably to a thickness of about 10 microns to about 40 microns. The edge (64) and center patterns (66) are furthermore preferably formed of materials having differing coefficients of thermal resistivity, e.g., platinum and platinum/palladium blends. A method of heating the gas sensor includes disposing the thermistor element (63) in an electrically serial configuration about a perimeter of the substrate (52) and over a portion of the substrate (52) intermediate the perimeter of the substrate (52) and passing an electric current through the thermistor element (63).

Abstract translation: 其中温度分布被控制的气体传感器的加热器的加热器图案利用布置在电串联配置中并设置在基板上的热敏电阻元件。 热敏电阻元件被布置成限定围绕衬底的周边延伸的边缘图案和与该边缘图案串联连接的中心图案。 中心图案延伸在衬底的位于衬底的周边之上的一部分上。 在优选实施例中，将热敏电阻元件丝网印刷到基底上，厚度为约5微米至约50微米，优选为约10微米至约40微米的厚度。 边缘和中心图案还优选地由具有不同系数的热阻率的材料形成，例如铂和铂/钯共混物。 加热气体传感器的方法包括将热敏电阻元件布置成围绕基板的周边的电连接构造，并且在基板周边的一部分之上并且传递电流通过热敏电阻元件。