Engine misfire diagnosis system and method and a vehicle including same

Abstract

A system implemented to diagnose a misfire for each cylinder of an engine based on a crank rotation angle and a motor control torque, an engine misfire diagnosis method thereof, and a vehicle including the same are disclosed. The engine misfire diagnosis system includes an engine configured to output power based on supplied fuel, a crank rotation angle sensor provided on the engine to measure a crank rotation angle of the engine, a motor configured to generate electrical energy by receiving the power, and a controller configured to perform control of the engine and the motor. The controller is configured to diagnose a misfire for each cylinder of the engine based on the crank rotation angle and a motor control torque ouput to the motor when entering an engine power generation mode.

Dependencies are inferred from the claim text.