DEVICE FOR CONTROLLING HIGH-PRESSURE FUEL SUPPLY PUMP, AND HIGH-PRESSURE FUEL SUPPLY PUMP

• Main Authors: KUSAKABE Ryo, WATANABE, Masanori, ARITOMI, Shunsuke, SUGANAMI, Masayuki
• Format: Patent
• Language: English; French; German
• Published: 18.12.2019
• Subjects: ACTUATING-FLOATS; BASIC ELECTRIC ELEMENTS; BLASTING; COCKS; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; DEVICES FOR VENTING OR AERATING; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INDUCTANCES; LIGHTING; MAGNETS; MECHANICAL ENGINEERING; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TAPS; THERMAL INSULATION IN GENERAL; TRANSFORMERS; VALVES; WEAPONS

To reduce collision noise caused when an electromagnetic valve of a high-pressure fuel supply pump is opened. Therefore, in a control device for controlling a high-pressure fuel supply pump including: an anchor; a fixed core configured to attract the anchor with an electromagnetic force; a suction valve configured to be opened or closed when the anchor is sucked by the fixed core; and an electromagnetic force generation unit configured to generate the electromagnetic force when applied with a driving voltage, it can be achieved by providing a control unit configured to perform control to lower a driving current from a peak current before a timing at which the anchor is sucked by the fixed core and collides in an operation state where an engine is under no load and an engine rotation speed is equal to or less than a set rotation speed.