Decision system for determining sensor failure of temperature sensor in automobile applications
First Claim
1. A sensor-failure decision system for determining a sensor failure of an automobile temperature sensor mounted on an automobile to detect a temperature of an automotive power train, comprising:
- a first memory section adapted to receive input information indicative of a temperature of the automotive power train detected by the automobile temperature sensor;
a second memory section for storing a predetermined normal temperature region and a plurality of predetermined partitioned temperature regions which are obtained by partitioning a specified temperature region being lower than and continuous with said predetermined normal temperature region into a plurality of temperature regions;
a measurement section for measuring an elapsed time during which the temperature detected by the automobile temperature sensor is continually included in either one of said plurality of predetermined partitioned temperature regions; and
a sensor-failure decision section for determining that a sensor failure of the automobile temperature sensor is present when said elapsed time reaches a predetermined time duration.
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Accused Products
Abstract
A sensor-failure decision system for determining a sensor failure of an automobile temperature sensor, comprises a first memory section adapted to receive input information indicative of a temperature of working fluid used in the automotive power train component part and detected by the automobile temperature sensor, a second memory section for storing a predetermined normal temperature region and a plurality of predetermined partitioned temperature regions which are obtained by partitioning a specified temperature region being lower than and continuous with the predetermined normal temperature region into a plurality of temperature regions, and a timer for measuring an elapsed time during which the temperature detected by the automobile temperature sensor is continually included in either one of the partitioned temperature regions. Also provided is a sensor-failure decision section for determining that a sensor failure of the automobile temperature sensor is present when the elapsed time measured by the timer reaches a predetermined time duration.
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Citations
8 Claims
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1. A sensor-failure decision system for determining a sensor failure of an automobile temperature sensor mounted on an automobile to detect a temperature of an automotive power train, comprising:
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a first memory section adapted to receive input information indicative of a temperature of the automotive power train detected by the automobile temperature sensor; a second memory section for storing a predetermined normal temperature region and a plurality of predetermined partitioned temperature regions which are obtained by partitioning a specified temperature region being lower than and continuous with said predetermined normal temperature region into a plurality of temperature regions; a measurement section for measuring an elapsed time during which the temperature detected by the automobile temperature sensor is continually included in either one of said plurality of predetermined partitioned temperature regions; and a sensor-failure decision section for determining that a sensor failure of the automobile temperature sensor is present when said elapsed time reaches a predetermined time duration. - View Dependent Claims (2, 3, 4)
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5. A sensor-failure decision system for determining a sensor failure of an automobile temperature sensor mounted on an automobile to detect a temperature of working fluid used in an automotive power train, said system comprising:
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a first memory means connected to the automobile temperature sensor for receiving input information indicative of a temperature of working fluid used in the automotive power train; a second memory means for storing a predetermined normal temperature region and a plurality of predetermined partitioned temperature regions which are obtained by partitioning a specified temperature region being lower than and continuous with said predetermined normal temperature region into a plurality of temperature regions; and a decision means for determining that a sensor failure is present when the temperature detected by the automobile temperature sensor is continually included in either one of said plurality of predetermined partitioned temperature regions for a predetermined time duration. - View Dependent Claims (6, 7, 8)
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Specification