SYSTEM AND METHOD FOR CONTROLLING LPG PUMP AND FUEL SUPPLYING SYSTEM OF LPI ENGINE USING THEREOF

The present invention relates to a system and method for controlling an LPG fuel pump and the fuel supply system of an LPI engine using the same, wherein the method for controlling an LPG fuel pump includes: driving the motor of the LPG fuel pump with voltage at a predetermined duty; measuring the r...

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Bibliographische Detailangaben
Hauptverfasser:	HAM, CHANG HO, CHOI, PIL SEON
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	The present invention relates to a system and method for controlling an LPG fuel pump and the fuel supply system of an LPI engine using the same, wherein the method for controlling an LPG fuel pump includes: driving the motor of the LPG fuel pump with voltage at a predetermined duty; measuring the rpm (revolutions per minute) of the motor; changing the duty of the motor in order to allow the measured rpm of the motor to reach a predetermined target rpm; measuring the pressure of an LPG bombe and the pressure of an injector; and changing the target rpm in order to maintain a difference between the measured pressure of an LPG bombe and the pressure of an injector into a predetermined value. [Reference numerals] (200) Sensor type BLDC motor;(300) Motor controller;(400) Pressure signal #1 (engine side);(500) Pressure signal #2 (bomb side);(700) Power supply;(AA) Command signal;(BB) Control �P = 5bar following voltage duty control;(CC) Diagnostic signal;(DD) Receive rotor location signal (hall sensor signal 3EA)