CONTROL DEVICE AND CONTROL METHOD FOR FUEL PUMP

专利名称：CONTROL DEVICE AND CONTROL METHOD

FOR FUEL PUMP

发明人：BABA, Yuichi,MIURA, Osamu申请号：EP16807277.5申请日：20160523公开号：EP3306061A1公开日：20180411

专利附图：

摘要：A plunger (56) is caused to reciprocate by driving of a DC motor (42) to pump apressurized fuel to an injector (16) and inject the fuel from the injector (16) insynchronization with a combustion cycle of an engine (1). An engine rotational period

(Teg) and a motor rotational period (Tmt) are compared (S3), and when the periods aredifferent, a duty ratio of a drive current to be supplied to the DC motor (42) is calculatedfrom an operation area of the engine (1) by a normal method (S4). When the enginerotational period (Teg) and the motor rotational period (Tmt) are close to each other,the duty ratio of the drive current to be supplied to the DC motor (42) is corrected to beincreased or decreased by a predetermined value (S6), and the DC motor (42) is drivenand controlled based on the corrected duty ratio (S5). Thus, the motor rotational period(Tmt) is constantly set to be different from the engine rotational period (Teg) during theoperation of the engine (1).

申请人：Mikuni Corporation

地址：13-11 Sotokanda 6-chome Chiyoda-ku Tokyo 101-0021 JP

国籍：JP

代理机构：Schwabe - Sandmair - Marx

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