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    • 4. 发明公开
    • Controller of automatic transmission
    • Steuerungfürautomatisches Getriebe。
    • EP0645560A1
    • 1995-03-29
    • EP94115150.8
    • 1994-09-26
    • AISIN AW CO., LTD.
    • Tsukamoto, KazumasaAndo, MasahikoHayabuchi, MasahoroYamamoto, YoshihisaKano, Toshihiro
    • F16H61/06
    • F16H61/061F16H61/08F16H2061/0444Y10T477/69363Y10T477/6937Y10T477/69377
    • A controller of an automatic transmission which allows to improve a durability of frictional engage elements and to shorten a gear change time even when a jumped gear change is made is provided. The controller of the automatic transmission of the present invention comprises a first hydraulic servo to which oil is supplied to make a jumped gear change, a second hydraulic servo to which oil is supplied to make a gear change to an intermediate gear change step, a limited oil supplying circuit created going through oil amount limiting means, a quick oil supplying circuit created without going through the oil amount limiting means and pressure governing means for governing a line pressure under a controlled pressure to supply oil under the controlled pressure to the quick oil supplying circuit. Oil path switching means switches the limited oil supplying circuit and the quick oil supplying circuit to supply oil to the first hydraulic servo or the second hydraulic servo. Accordingly, when the jumped gear change is made, oil is supplied to the first hydraulic servo via the quick oil supplying circuit and the operating pressure can be increased quickly, so that the gear change time may be shortened.
    • 提供了一种自动变速器的控制器,其允许提高摩擦接合元件的耐久性并且即使当进行变速齿轮变化时也缩短变速时间。 本发明的自动变速器的控制装置包括:第一液压伺服机构供给油以进行跳变换档;第二液压伺服机构,向其供给油以变速至中间变速档的第二液压伺服机构, 通过油量限制装置产生的供油回路,不经过油量限制装置而产生的快速供油回路,以及用于控制压力下的管路压力的压力控制装置,以在控制压力下将油供给到快速供油 电路。 油路切换装置切换限制供油回路和快速供油回路,以向第一液压伺服机构或第二液压伺服机构供油。 因此,当进行变速换档时,经由快油供给回路向第一液压伺服机构供给油,能够快速地提高作业压力,从而能够缩短变速时间。