Engine diagnosis system and engine diagnosis method

Abstract

This engine diagnosis system is an engine diagnosis system for diagnosing a state of an engine included in a vehicle in accordance with an operating state of the engine and includes a data acquisition unit configured to acquire a detection value related to a parameter indicating the operating state of the engine a plurality of times at time intervals, a diagnosis unit configured to diagnose the state of the engine based on the detection value acquired by the data acquisition unit; and a result output unit configured to output a diagnosis result in the diagnosis unit, in which the diagnosis unit includes a determination unit configured to determine whether or not a failure has occurred in the engine based on a moving average of a plurality of the detection values acquired at time intervals and the latest detection value acquired by the data acquisition unit.

Dependencies are inferred from the claim text.