Title:
電磁弁の制御方法、高圧燃料供給ポンプの電磁吸入弁の制御方法および電磁吸入弁の電磁駆動機構の制御装置
Document Type and Number:
Japanese Patent JP5639970
Kind Code:
B2
Abstract:
In an electromagnetically controlled inlet valve actuator 200 provided to a high pressure fuel pump, an impinging sound which is generated at the time of operating the mechanism is reduced. In a high pressure fuel pump provided with an electromagnetically controlled inlet valve, a current supply period includes a 1st current supply period for performing an operation of attracting a plunger rod 201 in a valve closing direction, a 2nd current supply period for alleviating a speed at which the plunger rod 201 moves in a valve opening direction, and a limited current supply period disposed between the 1st current supply period and the 2nd current supply period in the form of spanning a pump top dead center. Due to such a constitution, a moving distance and an impingement speed of the plunger rod 201 can be reduced so that noises can be reduced with high accuracy. Further, by providing the limited current supply period, a heating value and power consumption of the system can be reduced.
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Inventors:
徳尾 健一郎
臼井 悟史
菅波 正幸
有冨 俊亮
臼井 悟史
菅波 正幸
有冨 俊亮
Application Number:
JP2011169741A
Publication Date:
December 10, 2014
Filing Date:
August 03, 2011
Export Citation:
Assignee:
日立オートモティブシステムズ株式会社
International Classes:
F02M51/00; F02M59/20; F02M59/36
Attorney, Agent or Firm:
Manabu Inoue
Yuji Toda
Shigemi Iwasaki
Yuji Toda
Shigemi Iwasaki