17766360. Method for Operating a Wide-Band Lambda Probe simplified abstract (Robert Bosch GmbH)

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Method for Operating a Wide-Band Lambda Probe

Organization Name

Robert Bosch GmbH

Inventor(s)

Bernhard Ledermann of Weil Der Stadt (DE)

Hanna Huber of Stuttgart (DE)

Ralf Zimmerschied of Darmstadt (DE)

Method for Operating a Wide-Band Lambda Probe - A simplified explanation of the abstract

This abstract first appeared for US patent application 17766360 titled 'Method for Operating a Wide-Band Lambda Probe

Simplified Explanation

The abstract describes a method for operating a wide-band lambda probe, which involves controlling the Nernst voltage to a predefined setpoint value by adjusting the pump voltage and/or pump current, measuring these values, forming pairs of measured values, calculating a regression line based on these pairs, and determining pump current and/or lambda offsets based on the regression line.

  • The method involves controlling the Nernst voltage of a wide-band lambda probe.
  • It includes adjusting the pump voltage and/or pump current to achieve a predefined setpoint value.
  • Measured values of pump voltage, pump current, and lambda value are used to form pairs for analysis.
  • A regression line is calculated based on these measured value pairs to approximate a part of a reference characteristic curve.
  • Pump current offset and/or lambda offset are determined based on the regression line.

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      1. Potential Applications
  • Automotive industry for engine control systems.
  • Emission control systems in vehicles.
  • Industrial applications for combustion optimization.
      1. Problems Solved
  • Ensures accurate control of Nernst voltage in wide-band lambda probes.
  • Improves the efficiency of engine control systems.
  • Enhances the performance of emission control systems.
      1. Benefits
  • Precise control of Nernst voltage for optimal engine performance.
  • Increased accuracy in measuring and adjusting pump voltage and current.
  • Improved reliability and efficiency of wide-band lambda probes.


Original Abstract Submitted

A method for operating a wide-band lambda probe. The method includes controlling the Nernst voltage to a predefined setpoint value by setting the pump voltage and/or the pump current, measuring the pump voltage and/or the pump current and/or the lambda value, forming measured value pairs based on measured measuring values of the pump voltage, the pump current and/or the lambda value, calculating a regression line based on the measured value pairs in order to approximate a predefined part of a reference characteristic curve of the pump voltage, and ascertaining a pump current offset and/or lambda offset based on the regression line.

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