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US 7,890,245 B2Granted
Diagnostic method and device for controlling an internal combustion engine
AssigneeRobert Bosch GmbH
InventorsThomas Breitbach, Achim Friedel
Life of this patent
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Abstract
A device and a method for controlling an internal combustion engine, in which an actual value is determined based on a lambda value and compared with a setpoint value. Based on the comparison, a correction value for a controlled variable is determined and stored. An error is detected if the correction value changes abruptly.
Claims6
A device for controlling an internal combustion engine, comprising:
- means for determining an actual value based on a lambda value;
- means for comparing the actual value with a setpoint value;
- means for determining a correction value for a controlled variable based on the comparison;
- means for storing the correction value;
- and
- means for detecting an error if the correction value changes abruptly.
3 more elements
A method for controlling an internal combustion engine, comprising:
- determining an actual value based on a lambda value;
- comparing the actual value with a setpoint value;
- determining a correction value for a controlled variable based on the comparison;
- storing the correction value;
- and
- detecting an error if the correction value changes abruptly.
3 more elements
Dependencies are inferred from the claim text.