Title:
CONTROL DEVICE FOR VARIABLE DISPLACEMENT OIL PUMP
Document Type and Number:
Japanese Patent JP2022015609
Kind Code:
A
Abstract:
To provide a control device for a variable displacement oil pump capable of integrating control according to a target discharge flow rate and control according to a target oil pressure.SOLUTION: A required flow rate calculation section calculates a required flow rate with respect to each oil supply portion. A required oil pressure calculation section calculates a required oil pressure with respect to each oil supply portion. A flow rate mediation section 206 outputs a flow rate selected from the required flow rate with respect to each oil supply portion or an addition value of the required flow rate with respect to each oil supply portion. An oil pressure mediation section 207 outputs a maximum value of the required oil pressure with respect to each oil supply portion. A flow rate conversion section 222 converts an output value of the oil pressure mediation section 207 into a flow rate and outputs it. A flow rate mediation section 223 (target control amount determination section) determines a target discharge flow rate (target control amount) from an output value of the flow rate mediation section 206 and an output value of the flow rate conversion section 222. An SOL drive DUTY calculation 224 (control signal output section) outputs a control signal of a variable displacement oil pump corresponding to the target discharge flow rate.SELECTED DRAWING: Figure 13
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Inventors:
AKAGI YOSHIHIKO
Application Number:
JP2020118554A
Publication Date:
January 21, 2022
Filing Date:
July 09, 2020
Export Citation:
Assignee:
HITACHI ASTEMO LTD
International Classes:
F01M1/16; F01M1/02
Domestic Patent References:
| JP2015045288A | 2015-03-12 | |||
| JP2018031293A | 2018-03-01 | |||
| JP2010265936A | 2010-11-25 | |||
| JP2017129068A | 2017-07-27 | |||
| JP2014159757A | 2014-09-04 |
Attorney, Agent or Firm:
Kaichi International Patent Office
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