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1. 发明授权

US06382013B1 Method of reading an oxygen sensor input 有权
标题翻译：读取氧传感器输入的方法
公开(公告)号：US06382013B1
公开(公告)日：2002-05-07
申请号：US09569415
申请日：2000-05-12
申请人： Mikhail Zarkhin , Timothy P Philippart , Daniel B Ciesinski , Vasil Germanski , Mark J Stachew
发明人： Mikhail Zarkhin , Timothy P Philippart , Daniel B Ciesinski , Vasil Germanski , Mark J Stachew
IPC分类号： F02M700
CPC分类号： F02D41/1493 , F02D41/1455 , F02D2041/285
摘要： An adjustment circuit and method for reading a measurement output of an automotive oxygen sensor provide correction for outgassing of the sensor and inversion of the measurement output. The adjustment circuit includes a biasing stage connected to a sensor return of the oxygen sensor, where the biasing stage applies a predetermined bias voltage to the sensor return. An input stage is connected to an output of the sensor for retrieving the measurement output from the sensor. The adjustment circuit further includes an A/D conversion system connected to the input stage for adjusting the measurement output based on the bias voltage. The A/D conversion system may further be connected to the biasing stage for retrieving a sensor return output from the sensor. In such cases, a differential module calculates a difference between the sensor return output and the measurement output. The sensor return output defines an actual bias voltage applied to the sensor return.
摘要翻译：用于读取汽车氧传感器的测量输出的调节电路和方法提供对传感器放气的校正和测量输出的反转。调节电路包括与氧传感器的传感器返回部连接的偏置级，其中偏置级向传感器返回器施加预定的偏置电压。输入级连接到传感器的输出端，以从传感器检索测量输出。调整电路还包括连接到输入级的A / D转换系统，用于基于偏置电压来调节测量输出。 A / D转换系统还可以连接到偏置级，用于从传感器检索传感器返回输出。在这种情况下，差分模块计算传感器返回输出和测量输出之间的差值。传感器返回输出定义了施加到传感器回路的实际偏置电压。

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