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    • 5. 发明授权
    • Hydraulic control system for automatic transmission
    • 自动变速箱液压控制系统
    • US07318789B2
    • 2008-01-15
    • US11092043
    • 2005-03-29
    • Yuuji SaitouMasahiro Iwanabe
    • Yuuji SaitouMasahiro Iwanabe
    • F16H61/00G06F7/00
    • F16H61/061F16H61/686F16H2061/0087F16H2200/0043F16H2200/2007F16H2306/52Y10T477/6937Y10T477/6939
    • An automatic transmission has an electronic control unit and a hydraulic control unit. The electronic control unit outputs an engagement command pressure to a solenoid disposed in a hydraulic control unit to generate a shelf pressure to upshift the automatic transmission. The engagement command pressure is corrected downwardly when the maximum rate of the gear ratio change is larger than the rate of change of a thrust-up determination gear ratio, and upwardly when the maximum rate of the gear ratio change is smaller than the rate change of a prolongation determination gear ratio. By correcting the engagement command pressure using the maximum rate of the gear ratio change, a proper output shaft torque wave form can be obtained so that a fluctuation of an output shaft torque during a torque phase while upshifting has no strong influence on the acceleration of a vehicle to achieve a comfortable shift feeling.
    • 自动变速器具有电子控制单元和液压控制单元。 电子控制单元向布置在液压控制单元中的螺线管输出接合指令压力,以产生升档自动变速器的搁板压力。 当齿轮比变化的最大速率大于上推判定传动比的变化率时,接合指令压力向下修正,当传动比变化的最大速率小于 延长确定传动比。 通过使用变速比变化的最大速率来修正接合指令压力,可以获得适当的输出轴转矩波形,使得升档时转矩阶段期间的输出轴转矩的波动对加速度 车辆实现舒适的换档感觉。
    • 8. 发明授权
    • Hydraulic control apparatus for automatic transmission
    • 液压控制装置自动变速器
    • US08202186B2
    • 2012-06-19
    • US12480968
    • 2009-06-09
    • Yuuji SaitouGoh EndoOsamu Sato
    • Yuuji SaitouGoh EndoOsamu Sato
    • F16H31/00
    • F16H61/061F16H61/0437F16H2061/0451F16H2061/0455F16H2306/24
    • A hydraulic control apparatus for an automatic transmission, including a sequential shift control means for performing sequential shift control in a case where it is necessary to execute the second shift during execution of the first shift. The sequential shift control includes starting reduction of hydraulic fluid pressure in the third friction element when a parameter that varies in accordance with a degree of progress of the first shift has reached a predetermined value, and performing piston stroke control that includes outputting a high hydraulic pressure command as a hydraulic fluid pressure to the second friction element when the selector valve is switched from the second position to the first position, and subsequent to completion of outputting of the high hydraulic pressure command, outputting a low hydraulic pressure command that is lower than the high hydraulic pressure command.
    • 一种用于自动变速器的液压控制装置,包括顺次换档控制装置,用于在需要在执行第一班次期间执行第二班次的情况下执行顺序班次控制。 顺序变速控制包括当根据第一档次的进度变化的参数达到预定值时启动第三摩擦元件中的液压流体压力的降低,并执行包括输出高液压的活塞行程控制 指示作为当所述选择阀从所述第二位置切换到所述第一位置时所述第二摩擦元件的液压流体压力,并且在所述高液压指令的输出完成之后,输出低于所述第二位置的低液压指令 高液压指令。
    • 9. 发明授权
    • Shift control apparatus for automatic transmission
    • 用于自动变速器的换档控制装置
    • US06997843B2
    • 2006-02-14
    • US10489958
    • 2002-09-27
    • Yuuji Saitou
    • Yuuji Saitou
    • F16H61/08
    • F16H61/08F16H59/70F16H61/686F16H2059/706F16H2061/0444F16H2061/0451F16H2061/0455F16H2200/0052F16H2200/2007F16H2306/24Y10T477/638Y10T477/6937Y10T477/69373
    • In a shift control apparatus for an automatic transmission, there is provided a target speed change permitting means which; at the time of a dual changeover shift which is a shift from an Nth speed achieved by bringing a first friction element and a second friction element to an engagement state, to an (N-α)th speed achieved by engaging a third friction element and a fourth friction element, and which has at least one intermediate speed, between the Nth speed and the (N-α)th speed, achieved by engaging the second friction element and the third friction element; checks a driver's shift intention again at the time of attainment of the gear ratio corresponding to the intermediate speed, and permits the target speed to be changed to the speed according to the driver's intention when the target speed is different from the (N-α)th speed.
    • 在一种自动变速器的变速控制装置中,提供了一种目标变速允许装置, 在通过使第一摩擦元件和第二摩擦元件达到接合状态而实现的第N速度的转换到通过接合第三摩擦元件而获得的(N-α)速度的双重切换换档时, 第四摩擦元件,并且具有通过接合第二摩擦元件和第三摩擦元件而实现的第N速度和(N-α)速度之间的至少一个中间速度; 在达到对应于中间速度的齿轮比时,再次检查驾驶员换档意图,并且当目标速度不同于(N-α)时,允许将目标速度根据驾驶员的意图改变为速度, 速度。
    • 10. 发明申请
    • Hydraulic control system for automatic transmission
    • 自动变速箱液压控制系统
    • US20050221956A1
    • 2005-10-06
    • US11092043
    • 2005-03-29
    • Yuuji SaitouMasahiro Iwanabe
    • Yuuji SaitouMasahiro Iwanabe
    • F16H61/00F16H61/06F16H61/26F16H61/686
    • F16H61/061F16H61/686F16H2061/0087F16H2200/0043F16H2200/2007F16H2306/52Y10T477/6937Y10T477/6939
    • An automatic transmission comprises an electronic control unit and a hydraulic control unit. The electronic control unit commands an engagement command pressure to a solenoid disposed in a hydraulic control unit until the time engagement element pressure generated by the solenoid reaches to a shelf pressure, thereby an upshift of the automatic transmission is achieved. The engagement command pressure is corrected in a decrease direction when a maximum rate of change of a gear ratio is larger than a rate of change of a thrust-up determination gear ratio, and the engagement command pressure is corrected in a rise direction when the maximum rate of change of the gear ratio is smaller than a rate of change of a prolongation determination gear ratio. Thus, by correcting an engagement command pressure using the maximum rate of change of the gear ratio, a proper output shaft torque wave form can be obtained. Therefore, a fluctuation of an output shaft torque at the time of a torque phase during the upshift has no strong influence on an acceleration of a vehicle, As a result a shift of a comfortable feeling can be achieved.
    • 自动变速器包括电子控制单元和液压控制单元。 电子控制单元向设置在液压控制单元中的螺线管指令接合指令压力,直到由螺线管产生的时间接合元件压力达到搁板压力,从而实现自动变速器的升档。 当变速比的最大变化率大于上推判定传动比的变化率时,接合指令压力在减小方向上被校正,并且当最大值 变速比的变化率小于延长判定传动比的变化率。 因此,通过使用变速比的最大变化率来修正接合指令压力,可以获得适当的输出轴转矩波形。 因此,升档时的扭矩相位时的输出轴转矩的变动对车辆的加速度没有强烈的影响,结果可以实现舒适感的转变。