Patent ID: 8260488

Claim:
An abnormality analysis system for a vehicle that estimates a cause of an abnormality of the vehicle when an abnormality of the vehicle is detected based on a vehicle state value that indicates a state of the vehicle, comprising: a factor identifying information extraction unit that extracts factor identifying information which is used to identify a factor of the abnormality based on the vehicle state value; a database that contains data groups which correspond to respective categories of the factor identifying information and which store causes of abnormalities and vehicle state values at the time of occurrence of the abnormalities; and an abnormality cause estimation unit that executes a process for selecting the data group that corresponds to the category of the factor identifying information extracted by the factor identifying information extraction unit, and estimating the cause of the abnormality of the vehicle with the use of the vehicle state value at the time of the occurrence of the abnormality in the selected data group.