OIL JET ABNORMALITY DETERMINATION APPARATUS OF INTERNAL COMBUSTION ENGINE AND CONTROL APPARATUS OF INTERNAL COMBUSTION ENGINE

摘要

An MBT ignition time and a knock ignition time are acquired from an engine rotation speed and engine load, and an ignition time on a delay angle side, out of these ignition times, is set as the most advance angle ignition time. An ignition time on the delay angle side only by the KCS learning value with respect to the most advance angle ignition time is set as a required ignition time, and when an actual ignition time set by a knock control system exceeds a predetermined amount and is positioned on the delay angle side with respect to the required ignition time, it is determined that abnormality occurs in an oil jet. Fail-safe processing to the effect that the opening degrees of a throttle valve are corrected to a closed side is executed in response to the abnormality determination.

主权项

1. An oil jet abnormality determination apparatus of an internal combustion engine that is configured to perform an oil jet that lowers an in-cylinder temperature and perform an ignition time control in which an ignition time of a sparking plug is delayed when knocking occurs,
wherein when a delay angle amount of the ignition time of the sparking plug exceeds a predetermined determination threshold value, the oil jet abnormality determination apparatus is configured to determine that an abnormal state occurs where an oil jet amount runs short.