公开(公告)号：US5544640A

公开(公告)日：1996-08-13

申请号：US498270

申请日：1995-07-03

申请人： Christopher P. Thomas ,  Timothy A. Coatesworth ,  Kenneth P. DeGroot ,  Jeffery C. Ehlers ,  Mark E. McMackin

发明人： Christopher P. Thomas ,  Timothy A. Coatesworth ,  Kenneth P. DeGroot ,  Jeffery C. Ehlers ,  Mark E. McMackin

IPC分类号： F02D41/14 ,  G01N27/406 ,  G01N27/416

CPC分类号： G01N27/4067 ,  F02D41/1494

摘要： A circuit and method are provided for heating a dual heater oxygen sensor. One resistance element is of relatively low resistance such that the oxygen sensor is heated quickly and the other element is of relatively high resistance such that the oxygen sensor is heated and maintained at an optimal operating temperature. The circuit and associated method turn on a low resistance start heater that is in communication with the oxygen sensor given start-up conditions. Once the oxygen sensor has reached an operating temperature range a high resistance operating temperature heater is turned on and the start heater is turned off.

摘要翻译： 提供了用于加热双加热器氧传感器的电路和方法。 一个电阻元件具有相对低的电阻，使得氧传感器被快速加热，另一个元件具有相对高的电阻，使得氧传感器被加热并保持在最佳工作温度。 电路和相关方法打开一个低电阻启动加热器，该加热器在给定启动条件下与氧传感器连通。 一旦氧传感器达到工作温度范围，高电阻工作温度加热器就会打开，启动加热器关闭。

公开(公告)号：US5596975A

公开(公告)日：1997-01-28

申请号：US575920

申请日：1995-12-20

申请人： Christopher P. Thomas ,  Timothy A. Coatesworth ,  Kenneth P. DeGroot ,  Jeffery C. Ehlers ,  Mark E. McMackin ,  Keith L. Jones

发明人： Christopher P. Thomas ,  Timothy A. Coatesworth ,  Kenneth P. DeGroot ,  Jeffery C. Ehlers ,  Mark E. McMackin ,  Keith L. Jones

IPC分类号： F02D41/14 ,  G01N27/416

CPC分类号： F02D41/1494

摘要： A method for pulse width modulating a resistance element of an oxygen sensor. The method quickly heats the resistance element of the oxygen sensor soon after start of the engine with a relatively high duty cycle yielding wide pulse widths. During a mid oxygen sensor temperature range, the method decreasing the duty cycle and thereby the pulse width modulation. And, upon the oxygen sensor reaching peak operating temperature range, the method decreases the pulse width modulated voltage signal supplied to the oxygen sensor to relatively short duty cycled pulses.

摘要翻译： 一种用于对氧传感器的电阻元件进行脉宽调制的方法。 该方法在具有较高占空比的发动机启动后不久将快速加热氧传感器的电阻元件，产生宽的脉冲宽度。 在氧传感器中间温度范围内，该方法降低了占空比，从而减小了脉宽调制。 并且，当氧传感器达到峰值工作温度范围时，该方法将提供给氧传感器的脉宽调制电压信号减小到相对较短的占空比循环脉冲。

公开(公告)号：US20120110982A1

公开(公告)日：2012-05-10

申请号：US12943097

申请日：2010-11-10

申请人： Mark E. McMackin ,  Raymond J. Sullivan ,  Richard L. Lewis ,  William L. Laga ,  Charles S. Payton

发明人： Mark E. McMackin ,  Raymond J. Sullivan ,  Richard L. Lewis ,  William L. Laga ,  Charles S. Payton

IPC分类号： F01N11/00 ,  F01N3/10

CPC分类号： F01N13/008 ,  F01N2340/00 ,  F01N2470/18 ,  F01N2560/00 ,  F01N2560/025

摘要： An exhaust assembly for a vehicle includes an exhaust pipe through which an exhaust gas flows substantially in a first direction. The exhaust pipe includes a central region. The assembly also includes a sensor in fluid communication with the exhaust pipe and an elongated tube extending from a first end toward a second end and disposed at least partially within the exhaust pipe. The first end of the tube receives at least a portion of the sensor. The tube includes an inlet opening and an outlet opening. The inlet opening generally faces the exhaust gas flowing within the central region in the first direction so that flow of the exhaust gas in the central region substantially directly enters the inlet opening. The tube directs the exhaust gas within the tube toward the sensor, and the exhaust gas within the tube flows out of the tube through the outlet opening.

摘要翻译： 用于车辆的排气组件包括排气管，废气基本上沿着第一方向流动。 排气管包括中心区域。 组件还包括与排气管流体连通的传感器和从第一端朝向第二端延伸并且至少部分地设置在排气管内的细长管。 管的第一端接收传感器的至少一部分。 该管包括入口和出口。 入口开口大致面对在第一方向上在中心区域内流动的废气，使得中心区域中的废气流基本上直接进入入口。 管将管内的排气朝向传感器引导，并且管内的废气从管中流出出口。

公开(公告)号：US5815828A

公开(公告)日：1998-09-29

申请号：US889269

申请日：1997-07-08

申请人： Robert J. Nankee, II ,  George C. Mitchell ,  Mark E. McMackin

发明人： Robert J. Nankee, II ,  George C. Mitchell ,  Mark E. McMackin

IPC分类号： F01N9/00 ,  F02D41/14 ,  F02D41/24 ,  G01M15/00

CPC分类号： F01N9/005 ,  F02D41/1441 ,  F02D41/28 ,  Y02T10/47

摘要： A method of measuring temperature of a catalytic converter in a motor vehicle includes the step of determining a first oxygen sensing mechanism output, determining if it is time to determine a second oxygen sensing mechanism output, and determining the second oxygen sensing mechanism output if it is time to determine the second oxygen sensing mechanism output. The method also includes the step of determining a change in oxygen sensing mechanism output by taking a difference between the first oxygen sensing mechanism output and the second oxygen sensing mechanism output. The method further includes the step of finding a catalytic converter temperature in a look-up table using the change in oxygen sensing mechanism output, and using the catalytic converter temperature as needed by an electronic control mechanism to operate an engine of the motor vehicle.

摘要翻译： 一种测量机动车辆中的催化转化器的温度的方法包括：确定第一氧气感测机构输出，确定是否需要确定第二氧气感测机构输出的步骤，以及如果是第二氧气感测机构输出，则确定第二氧气感测机构输出 时间来确定第二氧气感测机构的输出。 该方法还包括通过取第一氧气感测机构输出和第二氧气感测机构输出之间的差来确定氧气感测机构输出的变化的步骤。 该方法还包括使用氧气感测机构输出的变化以及使用电子控制机构根据需要的催化转化器温度来操作机动车的发动机，在查找表中找到催化转化器温度的步骤。

公开(公告)号：US06432287B1

公开(公告)日：2002-08-13

申请号：US09516814

申请日：2000-03-01

申请人： Mark E. McMackin ,  Rama Madugula ,  Patrick T McCourt ,  Anthony R Mrosewske

发明人： Mark E. McMackin ,  Rama Madugula ,  Patrick T McCourt ,  Anthony R Mrosewske

IPC分类号： F01N1100

CPC分类号： G01K13/02

摘要： A device provided in an exhaust system of an internal combustion engine in order to detect exhaust gas temperature. The device includes an oxygen sensor which has a sense element outboard of a heater element. The oxygen sensor is further designed to incorporate a temperature sensing element on the outboard of the sense element. The temperature sensing element optimizes the detection of the exhaust gas temperature, thereby providing efficient operation of the engine.

摘要翻译： 设置在内燃机的排气系统中以检测废气温度的装置。 该装置包括氧传感器，其具有位于加热器元件外侧的感测元件。 氧传感器被进一步设计成在感测元件的外侧上并入温度感测元件。 温度传感元件优化了废气温度的检测，从而提供了发动机的有效运行。