Method for detecting realization of emptying of oil in lubrication device utilized to lubricate main bearings of motor vehicle, involves declaring emptying of lubricant when flow duration is higher than reference duration

摘要

The method involves determining flow duration (32) between moment when an internal combustion engine starts (31) to turn during starting and another moment when pressure of lubricant reaches a threshold pressure value. The duration is compared (33) with predetermined reference duration. An emptying of the lubricant is declared (34) when the duration is higher than the reference duration, where the reference duration is chosen according to temperature of the lubricant of the engine.