Title:
ロックアップクラッチの制御装置
Document Type and Number:
Japanese Patent JP6720886
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a control device of a lockup clutch which can further suppress a shock at lockup release and the blowup of an engine speed, and is favorable in acceleration responsiveness.SOLUTION: When an accelerator opening θacc is not smaller than a prescribed value, since a constant-pressure standby time for maintaining lockup differential pressure ΔP at constant-pressure standby pressure after the establishment of a release condition of a lockup clutch is shortened, the lockup clutch is quickly released, and a torque ratio can be obtained. On the other hand, when the accelerator opening θacc is smaller than the prescribed value, since the constant-pressure standby time is elongated, the lockup clutch is released after an engine speed Ne is sufficiently lowered, a shock accompanied by the release of the lockup clutch is thereby alleviated, and the blowup of the engine speed Ne is also suppressed. In addition to this, when the accelerator opening θacc is smaller than the prescribed value, since the constant-pressure standby pressure is raised as a turbine speed Ne is high, the engine speed is sufficiently suppressed, and the blowup can be further suppressed.SELECTED DRAWING: Figure 7
Inventors:
Aratake Munenobu
Norihiro Tsukamoto
Tomohiro Asami
Norihiro Tsukamoto
Tomohiro Asami
Application Number:
JP2017012502A
Publication Date:
July 08, 2020
Filing Date:
January 26, 2017
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F16H61/14
Domestic Patent References:
| JP200390429A | ||||
| JP2007314009A | ||||
| JP2002357270A | ||||
| JP200914189A | ||||
| JP2008121904A |
Attorney, Agent or Firm:
Haruyuki Ikeda
Kojiro Ikeda
Kojiro Ikeda