Title:
CURRENT CONTROL METHOD, CURRENT CONTROL DEVICE AND HYDRAULIC CONTROL DEVICE OF AUTOMATIC TRANSMISSION
Document Type and Number:
Japanese Patent JP2017025981
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a current control method capable of improving control accuracy of a solenoid valve.SOLUTION: A current control method includes the steps of: overlapping a dither signal Idiz to a current command value Icmd of a proportional solenoid for driving a solenoid valve; overlapping an offset signal Ioffset whose size is made larger in a case where Icmd is a large region than in a case where Icmd is a small region, to Icmd; and controlling current I of the proportional solenoid so as to obtain a current command value for hysteresis Icmd_hys that is Icmd with which Idiz and Ioffset are overlapped.SELECTED DRAWING: Figure 4
Inventors:
KANEKO YUTAKA
ADACHI KAZUTAKA
ADACHI KAZUTAKA
Application Number:
JP2015143571A
Publication Date:
February 02, 2017
Filing Date:
July 21, 2015
Export Citation:
Assignee:
NISSAN MOTOR
International Classes:
F16K31/06; F16H59/04; F16H61/02; F16H61/662; H01F7/18
Domestic Patent References:
| JP2012112507A | 2012-06-14 | |||
| JPH01266378A | 1989-10-24 |
Attorney, Agent or Firm:
Masamichi Ayata
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