Title:
自動車の自動変速機の油圧非常運転段機能のための弁システム
Document Type and Number:
Japanese Patent JP7219235
Kind Code:
B2
Abstract:
A valve system for a hydraulic emergency driving gear function of a hydraulic control unit for a motor vehicle automatic transmission includes a position valve (104) with a first piston slide (120) and an electromagnetic pressure regulator (86) having a decreasing characteristic curve. The first piston slide (120) is preloaded in a first position. When the first piston slide (120) is in a second position, the electromagnetic pressure regulator (86) is configured for connecting a system pressure-carrying line (18) of the motor vehicle automatic transmission to a first emergency driving gear clutch (12) of the motor vehicle automatic transmission and to a second emergency driving gear clutch (15) of the motor vehicle automatic transmission, whereby the first emergency driving gear clutch (12) and the second emergency driving gear clutch (15) are actuated, so that an emergency driving gear of the motor vehicle automatic transmission is engaged.
Inventors:
Marx Harman
Thilo Schmidt
Alexander Harborstock
Adriano Handrick
Thilo Schmidt
Alexander Harborstock
Adriano Handrick
Application Number:
JP2019569675A
Publication Date:
February 07, 2023
Filing Date:
December 17, 2018
Export Citation:
Assignee:
ZF FRIEDRICHSHAFEN AG
International Classes:
F16H61/12; F16H59/08
Domestic Patent References:
| JP2008533398A |
Foreign References:
| DE102005012586A1 | ||||
| US20090111636 |
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Kiyoshi Shigeno
Mitsutsugu Sugimura
Kiyoshi Shigeno