Research and implementation of pre-lubrication control system for engine

This research aims at designing the mode of engine lubrication pre-building engine oil pressure for cold-crank and frequent hot start and also the mode of safe lubrication control facility as lower oil pressure. The purpose is to prevent that the manufacturer's original engine will result in boundary-friction wearing due to idle speed, improper acceleration or driving with payload and lubrication oil pressure lowering to less than a safe value during driving when the original manufacturer's engine starts in cold-crank, lengthen the vehicle engine's lifespan and to enhance horsepower output power after cold-crank and warm-up reduce preliminary fuel consumption and exhaust emissions volume during idle speed.