Control method of piston cooling spray hook

• Main Authors: GAO JIANBIN, KOU CHUANFU, SU XUEJING, ZHU MINLIN, WANG XIAOHUI, WANG HUI
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2024
• Subjects: BLASTING; COOLING OF INTERNAL-COMBUSTION ENGINES; COOLING OF MACHINES OR ENGINES IN GENERAL; CRANKCASE VENTILATING; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; LUBRICATING INTERNAL COMBUSTION ENGINES; LUBRICATING OF MACHINES OR ENGINES IN GENERAL; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

The invention discloses a control method of a piston cooling spray hook, and relates to an engine control technology. Engine oil pressure and engine oil temperature of an engine are obtained, and a first engine oil flow demand of an engine oil pump is obtained by combining the engine oil pressure and the engine oil temperature; the second engine oil flow of a piston cooling spray hook is calibrated according to the real-time accelerator opening degree of the engine, and the engine oil flow variable quantity of the piston cooling spray hook is obtained according to the change of the second engine oil flow; and superposing the engine oil flow variable quantity on a first engine oil flow demand to obtain a target flow demand, and controlling an engine oil pump to output engine oil flow consistent with the target flow demand according to the target flow demand. Cooperative control over the flow of the oil pump and the flow of the piston cooling spray hook is achieved, the function requirements of lubrication and