17766360. Method for Operating a Wide-Band Lambda Probe simplified abstract (Robert Bosch GmbH)
Contents
Method for Operating a Wide-Band Lambda Probe
Organization Name
Inventor(s)
Bernhard Ledermann of Weil Der Stadt (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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- Potential Applications
- Automotive industry for engine control systems.
- Emission control systems in vehicles.
- Industrial applications for combustion optimization.
- 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.
- 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.