Method for error diagnosis of an ambient-pressure

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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