Title:
CONTROL DEVICE AND CONTROL METHOD FOR AUTOMATIC TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2021/070766
Kind Code:
A1
Abstract:
According to the present invention, a transmission control unit has a solenoid management controller that supplies a solenoid indication current for moving a valve spool by oscillating a current value with respect to a solenoid valve at a predetermined frequency while the vehicle is stopped. The solenoid management controller divides a plurality of solenoid valves to be operated into upstream solenoid valves near a hydraulic source and downstream solenoid valves other than the upstream solenoid valves. When the solenoid indication current is supplied to the plurality of solenoid valves at the same time, the current is supplied while a current phase to the upstream solenoid valve and a current phase to the downstream solenoid valve are shifted.
Inventors:
TAKAMURA TAKUYA (JP)
TAWARA YUKI (JP)
TAWARA YUKI (JP)
Application Number:
PCT/JP2020/037684
Publication Date:
April 15, 2021
Filing Date:
October 05, 2020
Export Citation:
Assignee:
JATCO LTD (JP)
NISSAN MOTOR (JP)
NISSAN MOTOR (JP)
International Classes:
F16H59/08; F16H59/50; F16H61/04; F16H61/12
Foreign References:
| JP2008215533A | 2008-09-18 | |||
| JP2019152304A | 2019-09-12 | |||
| JP2004018715A | 2004-01-22 | |||
| JPH04171509A | 1992-06-18 | |||
| JP2018195624A | 2018-12-06 | |||
| JP2014156926A | 2014-08-28 |
Attorney, Agent or Firm:
GOTOH & PARTNERS (JP)
Download PDF:
Previous Patent: GUIDANCE DEVICE, GUIDANCE METHOD, AND RECORDING MEDIUM
Next Patent: MOLDED ARTICLE AND SUBSTRATE FORMED FROM SAID MOLDED ARTICLE
Next Patent: MOLDED ARTICLE AND SUBSTRATE FORMED FROM SAID MOLDED ARTICLE