Title:
VARIABLE DISPLACEMENT TYPE OIL PUMP DEVICE
Document Type and Number:
Japanese Patent JP2017223132
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a variable displacement type oil pump device for enabling the actual discharge pressure of oil to quickly approximate a target discharge pressure by suppressing the generation of a response delay.SOLUTION: A variable displacement type oil pump device 100 includes an oil pump 1 including a hydraulic chamber U into which oil flows, and capable of changing the discharge pressure of the oil with a change in the capacity of the hydraulic chamber U, an OCV 70 for changing the capacity of the oil in the hydraulic chamber U with a change of an indicated current value, and an ECU 81 for controlling the OCV 70 according to at least either hysterisis accompanying the change in the capacity of the hydraulic chamber U or hysterisis accompanying an increase/decrease of the indicated current value for the OCV 70.SELECTED DRAWING: Figure 3
Inventors:
YOSHIDA MASAHIRO
AOYAGI TAKAHIKO
SAKAI TAKAHIRO
MASUHISA TATSUYA
WATANABE HIROTAKA
UCHIYAMA YOSHINOBU
SHIMATANI KAZUYOSHI
TAKAGI NOBORU
HOSOKI TAKAYUKI
AOYAGI TAKAHIKO
SAKAI TAKAHIRO
MASUHISA TATSUYA
WATANABE HIROTAKA
UCHIYAMA YOSHINOBU
SHIMATANI KAZUYOSHI
TAKAGI NOBORU
HOSOKI TAKAYUKI
Application Number:
JP2016117623A
Publication Date:
December 21, 2017
Filing Date:
June 14, 2016
Export Citation:
Assignee:
AISIN SEIKI
TOYOTA MOTOR CORP
TOYOTA MOTOR CORP
International Classes:
F04C14/24; F04B49/22
Attorney, Agent or Firm:
Hirokazu Miyazono