Title:
油圧回路の圧力供給装置の制御方法
Document Type and Number:
Japanese Patent JP4213037
Kind Code:
B2
Abstract:
The invention relates to a method for controlling a pressure supply device in a hydraulic circuit, especially in a hydraulic circuit in an automatic gearbox which comprises an hydraulic pump, a pressure control valve and a consumer. The hydraulic pump is controlled if the system pressure falls below a specific lower threshold value and is switched off if a specific higher threshold value of the system pressure is reached or exceeded. In the data on the system pressure is not available, the current system pressure is calculated.
Inventors:
Thomas, Knoprauho
Otto, Epnel
Claus, Schwaiger
Matthias, Winkel
Christoph, Rüchart
Andreas, Schwenger
Marx, Ganzoru
Otto, Epnel
Claus, Schwaiger
Matthias, Winkel
Christoph, Rüchart
Andreas, Schwenger
Marx, Ganzoru
Application Number:
JP2003549771A
Publication Date:
January 21, 2009
Filing Date:
November 29, 2002
Export Citation:
Assignee:
ZF FRIEDRICHSHAFEN AG
International Classes:
F15B19/00; F15B20/00; F16H61/00; F16H61/12; F16H59/08; F16H59/26
Domestic Patent References:
| JP2002039366A | ||||
| JP4090951A | ||||
| JP1044340A | ||||
| JP6213316A | ||||
| JP20043675A |
Attorney, Agent or Firm:
Kenji Yoshitake
Hiroyuki Nagai
Junpei Okada
Hirohito Katsunuma
Hideyuki Mori
Hiroyuki Nagai
Junpei Okada
Hirohito Katsunuma
Hideyuki Mori
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