Abnormality diagnostic system and abnormality diagnostic data storing method
AssigneeToyota Jidosha Kabushiki Kaisha
InventorMitsuhiro Nada
Life of this patent
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Abstract
An abnormality judging section detects the occurrence of an abnormality based on various signals input to a master control CPU, and judges that abnormal event. A data selecting section selects inherent data which is inherent to the abnormal event in accordance with the judged abnormal event from data input to the master control CPU and data generated in the master control CPU. A writing section writes the freeze-frame data to an EEPROM together with nine common data irrespective of a difference in abnormal events. A reading section reads desired freeze-frame data from data stored in the EEPROM in accordance with a request from a diag tester.
Claims19
An abnormality diagnostic system capable of storing abnormality diagnostic data used for abnormality diagnosis corresponding to an abnormal event when an abnormality is detected in a vehicle, comprising:
- a common data storing section for storing as the abnormality diagnostic data for a plurality of abnormal events, common data which is common irrespective of a difference in the abnormal events;
- and
- an inherent data storing section for storing as the abnormality diagnostic data, inherent data which is inherent to each of the abnormal events.
An abnormality diagnostic data storing method for storing, in storing means, abnormality diagnostic data used for abnormality diagnosis corresponding to an abnormal event when an abnormality is detected in a vehicle, comprising the steps of:
- judging an abnormal event when an abnormality is detected;
- selecting at least inherent data which is inherent to the abnormal event corresponding to the judged abnormal event;
- and
- storing selected the inherent data in the storing means as abnormality diagnostic data corresponding to the abnormal event for a plurality of abnormal events, together with common data which is common irrespective of a difference in the abnormal events.
Dependencies are inferred from the claim text.