Title:
自動変速機を有する自動車の駆動システムの電子油圧制御装置
Document Type and Number:
Japanese Patent JP5087596
Kind Code:
B2
Abstract:
An electro-hydraulic control device of a car's auto gearbox has hydraulic friction clutches or brakes that can be engaged or disengaged for performing individual gear shifts or brakes to whose operating devices, control valves are assigned. There is a control apparatus designed as a microprocessor by means of which, according to operating parameters of the gearbox and a drive motor, plus a device for shift- and/or travel program control, the electrically operated solenoid valves and pressure control valves handling the operating devices can be adjusted. With a failure of the control apparatus, the solenoid valves and pressure control valves become switched without current. Thereby, in a previously applied low gear, there is shifting automatically into a low gear, preferably third gear and in a previously applied higher gear, into a higher gear, preferably fifth gear.
Inventors:
Georg, Giller
Tiro, Schmidt
Claus, Steinhauser
Tiro, Schmidt
Claus, Steinhauser
Application Number:
JP2009187282A
Publication Date:
December 05, 2012
Filing Date:
August 12, 2009
Export Citation:
Assignee:
ZF FRIEDRICHSHAFEN AG
International Classes:
F16H61/12; F16H61/00; F16H61/02; F16H61/686
Domestic Patent References:
| JP4501455A | ||||
| JP64030957A | ||||
| JP63210444A | ||||
| JP6341520A | ||||
| JP4296248A | ||||
| JP2003727A |
Attorney, Agent or Firm:
Kenji Sugimura
Tatsuya Sawada
Akito Okura
Takahiro Yamazaki
Yoshihiro Uemura
Tatsuya Tanaka
Yamato Okano
Atsushi Araki
Yuro Yoshizawa
Tsubouchi Shin
Tatsuya Sawada
Akito Okura
Takahiro Yamazaki
Yoshihiro Uemura
Tatsuya Tanaka
Yamato Okano
Atsushi Araki
Yuro Yoshizawa
Tsubouchi Shin