An oil debris monitoring sensor includes a multiple of passages within the housing, each of the multiple of passages surrounded by a set of coils to detect a particle. A method for determining a presence of a particle in a system includes a) installing a single sensor in-line with an oil flow path; b) communicating oil through a multiple of passages within the housing of the single sensor; c) detecting a particle through the single sensor; and d) isolating the particle to one of the multiple of passages within the sensor housing.

An oil debris monitoring sensor includes a multiple of passages within the housing, each of the multiple of passages surrounded by a set of coils to detect a particle. A method for determining a presence of a particle in a system includes a) installing a single sensor in-line with an oil flow path; b) communicating oil through a multiple of passages within the housing of the single sensor; c) detecting a particle through the single sensor; and d) isolating the particle to one of the multiple of passages within the sensor housing.

The present invention provides a preheating, lubricating, and cooling system that oil essentially used for lubrication, wear resistance, and cooling of an internal combustion engine, industrial equipment, or a mobile vehicle is used as a preheating medium, a manager supplies the oil most optimized for load operation of equipment through a preheating system separated from the existing main oil system, and an oil supply path uses a path of the existing oil system, so that the preheating and the load operation are facilitated during an extremely cold season and an extremely hot season, and a normal operation is possible even in a case of being immediately stopped after the operation.

The present invention provides a preheating, lubricating, and cooling system that oil essentially used for lubrication, wear resistance, and cooling of an internal combustion engine, industrial equipment, or a mobile vehicle is used as a preheating medium, a manager supplies the oil most optimized for load operation of equipment through a preheating system separated from the existing main oil system, and an oil supply path uses a path of the existing oil system, so that the preheating and the load operation are facilitated during an extremely cold season and an extremely hot season, and a normal operation is possible even in a case of being immediately stopped after the operation.

A replacement recommending device for a lubricant in an internal combustion engine in which a liquid gasket is applied to a sealing spot includes a processing circuit configured to perform an acquisition process of acquiring temperature information regarding the lubricant in the internal combustion engine, and an output process of outputting a signal indicating that replacement of the lubricant is recommended by operating an output device when a parameter is equal to or greater than a predetermined value based on the temperature information acquired in the acquisition process, the parameter having a value that increases with an increase in a cumulative time in which a temperature of the lubricant is equal to or higher than a prescribed temperature, and the cumulative time being a cumulative time based on a time point at which the liquid gasket is applied to the sealing spot.

A replacement recommending device for a lubricant in an internal combustion engine in which a liquid gasket is applied to a sealing spot includes a processing circuit configured to perform an acquisition process of acquiring temperature information regarding the lubricant in the internal combustion engine, and an output process of outputting a signal indicating that replacement of the lubricant is recommended by operating an output device when a parameter is equal to or greater than a predetermined value based on the temperature information acquired in the acquisition process, the parameter having a value that increases with an increase in a cumulative time in which a temperature of the lubricant is equal to or higher than a prescribed temperature, and the cumulative time being a cumulative time based on a time point at which the liquid gasket is applied to the sealing spot.

A method and a device for checking the functionality of a crankcase ventilation system of an internal combustion engine is provided. The system has a low-load vent line and a high-load vent line between a crankcase outlet of a crankcase and a respectively associated introduction point into an air path of the internal combustion engine, in which method and device the pressure prevailing in the crankcase is measured by a crankcase pressure sensor and is compared with a crankcase pressure modeled on the assumption of a fault-free crankcase ventilation system, and in which method and device information items regarding the presence of a fault and of an associated fault location in the crankcase ventilation system are determined from the comparison result.

Systems and methods for lubricant dilution detection are disclosed. A method for detecting lubricant dilution for a lubrication system includes detecting a low idle condition. The method includes receiving sensed values indicative of lubricant pressure and lubricant temperature during the low idle condition. The method also includes determining a lubricant pressure threshold based on the sensed value indicative of lubricant temperature. The method further includes determining lubricant dilution based on the sensed value indicative of lubricant pressure and the determined lubricant pressure threshold during the low idle condition. In accordance with a determination that there is lubricant dilution, the method includes outputting an indication of the lubricant dilution.

Systems and methods for lubricant dilution detection are disclosed. A method for detecting lubricant dilution for a lubrication system includes detecting a low idle condition. The method includes receiving sensed values indicative of lubricant pressure and lubricant temperature during the low idle condition. The method also includes determining a lubricant pressure threshold based on the sensed value indicative of lubricant temperature. The method further includes determining lubricant dilution based on the sensed value indicative of lubricant pressure and the determined lubricant pressure threshold during the low idle condition. In accordance with a determination that there is lubricant dilution, the method includes outputting an indication of the lubricant dilution.

A controller for a vehicle that includes an internal combustion includes processing circuitry. The processing circuitry obtains a predicted temperature outside the vehicle and estimates the viscosity of a lubricating oil based on the oil pressure and the oil temperature of the lubricating oil when the internal combustion engine satisfies a specific operation condition. When the processing circuitry determines that there is a likelihood of a cranking failure occurring in the internal combustion engine on condition that the predicted temperature is less than a threshold value that is based on the viscosity, the processing circuitry outputs a notification signal indicating that that there is a likelihood of a cranking failure occurring in the internal combustion engine.