专利名称:Method for error diagnosis of an ambient-pressure sensor and an intake-manifoldpressure sensor
发明人:Christof Thiel,Andreas Bethmann,Steffen
Ziel
申请号:US11433141申请日:20060512
公开号:US20060282200A1公开日:20061214
专利附图:
摘要:In a method for error diagnosis of an ambient-pressure sensor and an intake-
manifold pressure sensor of an internal combustion engine, a defective intake-manifoldpressure sensor or a defective ambient-pressure sensor is unambiguously detected bymeasuring the signals of the ambient-pressure sensor and the intake-manifold pressuresensor with the internal combustion engine stopped, and comparing the ambient
pressure represented by the sensor signal of the ambient-pressure sensor to the intake-manifold pressure represented by the sensor signal of the intake-manifold pressuresensor to determine a pressure difference. If the determined pressure difference isgreater than a predetermined maximum value, at least one additional sensor signal ismeasured with the internal combustion engine running, which additional sensor signal isused for identifying the defective sensor.
申请人:Christof Thiel,Andreas Bethmann,Steffen Ziel
地址:Heilbronn DE,Ditzingen DE,Schwieberdingen DE
国籍:DE,DE,DE
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