Title:
CONTROL DEVICE OF LINEAR SOLENOID VALVE
Document Type and Number:
Japanese Patent JP2022156798
Kind Code:
A
Abstract:
To suppress a large variation of the output hydraulic pressure of a linear solenoid valve.SOLUTION: A hydraulic pressure command value of a linear solenoid valve is set. Subsequently, a current command value of a solenoid portion is set in such a manner that the current command value becomes large as the hydraulic pressure command value becomes large. Then, when a first condition that a current command value increase rate being an increase amount of the current command value per unit time is equal to or higher than a first threshold is not established, a dither command value of a first amplitude is set, and when the first condition is established, a dither command value of a second amplitude which is equal to or larger than zero, and smaller than the first amplitude is set. Furthermore, a current based on the current command value and the dither command values is supplied to the solenoid portion.SELECTED DRAWING: Figure 4
Inventors:
TSUCHIDA KENICHI
HOSHINO SATOMI
HOSHINO SATOMI
Application Number:
JP2021060670A
Publication Date:
October 14, 2022
Filing Date:
March 31, 2021
Export Citation:
Assignee:
AISHIN KK
International Classes:
F16K31/06; F16H61/00; G05D7/06
Attorney, Agent or Firm:
Aitec International Patent Office