Motor vehicle diagnostic system and apparatus
First Claim
Patent Images
1. A diagnostic system for the analysis of motor vehicle operating problems, said system comprising:
- memory for storing data representative of a motor vehicle to be serviced using said system and a plurality of tests therfor, said data including both motor vehicle identifying data and data identifying access points for obtaining vehicle operating data representative of the operation of systems within the motor vehicle, said data access points corresponding to pins of multiple pin connectors within the motor vehicle;
an input for inputting a result for a selected one of the tests;
a drive symptom parameter/pin identification computer for accessing said memory in response to vehicle identification data and motor vehicle drivability symptoms indicative of operating problems being experienced by the motor vehicle;
a diagnostic data collection computer configurable by said drive symptom parameter/pin identification computer for collecting data only from said access points;
a data analysis computer responsive to data collected by said diagnostic data collection computer for identifying one or more faults of one or more systems responsible for the vehicle drivability symptoms; and
a fault indicator for indicating a Fault Suspect State for each of a plurality of faults related to the selected test, the Fault Suspect State having a plurality of values, one of said values comprising a “
Possible Intermittent”
state.
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Abstract
A system and method are provided for analyzing a motor vehicle operating problem. A number of tests are provided for the selected system or component to determine the cause of the problem. One of the tests are selected, and instructions are displayed for the selected test. A result is input for the selected test and it is determined whether the result indicates the problem was experienced during the test. If the problem was not experienced and that the test did not experience a failure, the state of the faults that are detectable by the test are set to substantially “Possible Intermittent Fault”.
54 Citations
16 Claims
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1. A diagnostic system for the analysis of motor vehicle operating problems, said system comprising:
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memory for storing data representative of a motor vehicle to be serviced using said system and a plurality of tests therfor, said data including both motor vehicle identifying data and data identifying access points for obtaining vehicle operating data representative of the operation of systems within the motor vehicle, said data access points corresponding to pins of multiple pin connectors within the motor vehicle;
an input for inputting a result for a selected one of the tests;
a drive symptom parameter/pin identification computer for accessing said memory in response to vehicle identification data and motor vehicle drivability symptoms indicative of operating problems being experienced by the motor vehicle;
a diagnostic data collection computer configurable by said drive symptom parameter/pin identification computer for collecting data only from said access points;
a data analysis computer responsive to data collected by said diagnostic data collection computer for identifying one or more faults of one or more systems responsible for the vehicle drivability symptoms; and
a fault indicator for indicating a Fault Suspect State for each of a plurality of faults related to the selected test, the Fault Suspect State having a plurality of values, one of said values comprising a “
Possible Intermittent”
state.- View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for analyzing a motor vehicle operating problem, said method comprising:
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storing data representative of a motor vehicle to be serviced and a plurality of tests therefor;
displaying potential tests to determine the cause of the problem;
selecting and conducting a selected one of the tests and observing a result therefor;
inputting the result from the selected test;
determining whether the result indicates any failure modes;
setting the state of all the failure modes that are detectable by the test that are currently set to “
Possible Hard Fault”
to “
Possible Intermittent Fault”
; and
setting the state of all the failure modes that are not detectable by the test to “
Ruled Out”
.- View Dependent Claims (9, 10, 11, 12, 13)
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14. A method for analyzing a motor vehicle operating problem, said method comprising:
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selecting a system or component to be tested;
displaying a plurality of tests for the selected system or component;
selecting one of the tests to conduct;
displaying instructions for the selected test;
conducting the selected test and observing a result;
inputting the result for the selected test;
determining whether the result indicates any failure modes setting the state of all the failure modes that are detectable by the test that are currently set to “
Possible Hard Fault”
to “
Possible Intermittent Fault”
; and
setting the state of all the failure modes that are not detectable by the test to “
Ruled Out”
.- View Dependent Claims (15, 16)
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Specification
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Current AssigneeFord Global Technologies, LLC (Ford Motor Company)
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Original AssigneeFord Global Technologies, LLC (Ford Motor Company)
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InventorsGiles, Peter John, Meissner, Herbert Thomas, Cardillo, John
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Primary Examiner(s)Cuchlinski, Jr., William A.
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Assistant Examiner(s)TO, TUAN C
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Application NumberUS09/127,133Time in Patent Office935 DaysField of Search701/29, 364/424.04, 364/551.01, 364/424.034, 731/16US Class Current701/29CPC Class CodesB60W 2050/021 Means for detecting failure...B60W 50/0205 Diagnosing or detecting fai...
