3results about "Engine operating parameters" patented technology

A control device for an internal combustion engine, comprising: a piston injector for injecting lubricating oil onto the back of a piston; and an oil pump for varying the amount of lubricating oil dispensed per revolution, i.e., the unit dispensed quantity. The control device includes a processing circuit. When the oil temperature is below a predetermined temperature, the processing circuit closes an electrically operated valve located in the lubricating oil supply path to the piston injector, thereby stopping the injection of lubricating oil from the piston injector. During the period when the oil temperature is below the predetermined temperature and the injection of lubricating oil from the piston injector is stopped, the processing circuit maintains the unit dispensed quantity of lubricating oil from the oil pump at or above a predetermined amount.

A control device controls an internal combustion engine including a piston jet that injects lubricating oil to a back surface of a piston and an oil pump that changes a unit discharge amount that is a discharge amount of the lubricating oil per revolution. The control device includes a processing circuit. The processing circuit is configured to close an electric valve provided on a supply path of the lubricating oil to the piston jet to stop injection of the lubricating oil from the piston jet when an oil temperature is lower than a predetermined temperature. The processing circuit is configured to maintain the unit discharge amount of the lubricating oil discharged from the oil pump at a predetermined amount or more while the injection of the lubricating oil from the piston jet is stopped when the oil temperature is lower than the predetermined temperature.