Lubricant level control for lubricated systems

A system, comprising:

• an internal combustion engine comprising a drive gear;
• a clutch device operatively coupled to the drive gear;
• an electric accessory drive operatively coupled to the clutch device via a driven gear of the electric accessory drive, wherein the clutch device is selectively operable to mechanically couple the drive gear and the driven gear and mechanically decouple the drive gear and the driven gear;
• a lubricant pump operable to supply lubricant to the internal combustion engine and the electric accessory drive to lubricate the drive gear and driven gear, respectively;
• and a pressure-regulated valve in lubricant receiving communication with the lubricant pump, wherein lubricant from the pump opens the pressure-regulated valve to drain lubricant from the electric accessory drive when a pressure of the lubricant meets a threshold pressure and closes the pressure-regulated valve to prevent drainage of lubricant from the electric accessory drive when the pressure of the lubricant does not meet the threshold pressure, wherein when at least a portion of lubricant from the electric accessory drive is not drained through the pressure-regulated valve, the at least a portion of lubricant is drained through a secondary drain formed by the alignment between the clutch device, the electric accessory drive, and a drive housing of the internal combustion engine.

A method for lubricating a lubricated component in an internal combustion engine system, comprising:

• pumping, by a lubricant pump, a first portion of lubricant into a lubricated component through one or more conduits, wherein the lubricant pump and the lubricated component are in direct communication through the one or more conduits, wherein the lubricated component comprises an electric accessory drive;
• pumping, by the lubricant pump, a second portion of the lubricant into a pressure-regulated valve to open the pressure-regulated valve, the pressure-regulated valve being fluidly coupled to the lubricated component, wherein the first portion of lubricant does not go through the pressure-regulated valve;
• draining lubricant from the lubricated component through the opened pressure-regulated valve;
• draining lubricant from the electric accessory drive through a secondary drain when the pressure-regulated valve does not open after the second portion of the lubricant being pumped into the pressure-regulated valve, the secondary drain extending from the interior of the electric accessory drive to the interior of the internal combustion engine system;
• and closing the pressure-regulated valve so as to prevent lubricant from draining from the lubricated component in response to an engine of the internal engine system being shut down.