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    • 41. 发明公开
    • Control method and control system for automatic transmission
    • Verfahren und Vorrichtung zur Steuerung eines Automatikgetriebes。
    • EP0681123A2
    • 1995-11-08
    • EP95106174.6
    • 1995-04-25
    • AISIN AW CO., LTD.
    • Tsukamoto, KazumasaHayabuchi, MasahiroNishida, MasaakiYamamoto, YoshihisaKusafuka, MuneoTsutsui, HiroshiIwata, Akihito
    • F16H61/20
    • F16H61/20B60W30/18118F16H3/66F16H59/22F16H59/54F16H59/66F16H2061/205F16H2061/207F16H2312/02Y10T477/641Y10T477/646Y10T477/648Y10T477/84
    • A system and method for controlling an automatic transmission in a vehicle drive train including an engine (10), the automatic transmission (16) and a fluid coupling (12) for transmitting the rotation of the engine to the transmission. The transmission includes a clutch (C1) applied when a forward running range is selected; a second one-way clutch (F2) which is applied, when the first clutch (C1) is applied, to establish a forward 1st speed; and a brake (B1) for locking the one-way clutch (F2), when applied, to block the reverse rotation of the output shaft of the transmission (16). A first hydraulic servo (C-1) receives a first oil pressure for applying the first clutch (C1) and a second hydraulic servo (B-1) receives a second oil pressure for applying the brake (B1). When a forward running range is selected, with the vehicle stopped, the engine idling and a foot brake engaged, the oil pressure of the first hydraulic servo (C-1) is lowered from the oil pressure at the 1st speed whereas the oil pressure of the second hydraulic servo (B-1) is raised to a modulated pressure. The modulated pressure is set to generate, against the reverse force on the vehicle facing up an incline, a resistance corresponding to the forward driving force generated when the engine is idling in 1st speed.
    • 一种用于控制车辆传动系中的自动变速器的系统和方法,该系统和方法包括发动机(10),自动变速器(16)和用于将发动机的旋转传递到变速器的流体联轴器(12)。 变速器包括当选择前进行驶范围时施加的离合器(C1) 当施加第一离合器(C1)时施加的第二单向离合器(F2),以建立前进1速度; 以及用于在施加时用于锁定单向离合器(F2)的制动器(B1),以阻止变速器(16)的输出轴的反向旋转。 第一液压伺服系统(C-1)接收用于施加第一离合器(C1)的第一油压,第二液压伺服机构(B-1)接收用于施加制动器(B1)的第二油压。 当选择正向行驶范围时,车辆停止,发动机怠速和脚踏制动器接合,第一液压伺服系统(C-1)的油压从第一速度的油压降低,而油压 第二液压伺服系统(B-1)升高到调制压力。 调制压力被设定为产生相对于车辆朝向倾斜角度的反向力的阻力,该阻力对应于当发动机以第一速度空转时产生的前进驱动力。