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    • 2. 发明申请
    • FLUID PRESSURE CONTROL APPARATUS/PROCESS
    • 流体压力控制装置/流程
    • US20100211229A1
    • 2010-08-19
    • US12649881
    • 2009-12-30
    • Takashige HINAMIYoshio MORITA
    • Takashige HINAMIYoshio MORITA
    • G05D16/20
    • G05D16/2093F15B21/087F16D48/066F16D2500/1026F16D2500/3022F16D2500/3024F16D2500/5018F16D2500/70406F16D2500/70418F16H61/0251
    • A fluid pressure control apparatus for controlling a solenoid valve to increase and decrease a fluid pressure by varying a valve opening degree includes a controller to control the fluid pressure by varying a command current for driving the solenoid valve. The controller calculates a hysteresis correction quantity to reduce a hysteresis effect of a hysteresis characteristic of the fluid pressure outputted from the solenoid valve with respect to the command current varied in an increasing direction and a decreasing direction, and varies the command current to control the fluid pressure to a target pressure in accordance with the hysteresis correction quantity. The controller calculates the hysteresis correction quantity in accordance with a turn-to-turn variation quantity determined from a current difference between a first command current value at a first changeover of a varying direction of the command current from one of the increasing and decreasing directions to the other and a second command current value at a second changeover of the varying direction of the command current before the first changeover.
    • 用于通过改变阀开度来控制电磁阀来增加和减少流体压力的流体压力控制装置包括控制器,通过改变用于驱动电磁阀的指令电流来控制流体压力。 控制器计算滞后校正量,以相对于在增加方向和减小方向上变化的指令电流来减小从电磁阀输出的流体压力的滞后特性的滞后效应,并且改变指令电流以控制流体 根据滞后校正量对目标压力施加压力。 控制器根据从指令电流的变化方向的第一次切换到第一指令电流值的增加和减小方向之一上的第一指令电流值之间的电流差确定的匝间变化量来计算滞后校正量, 另一个和第二指令电流值在第一切换前的指令电流的变化方向的第二次切换。
    • 3. 发明申请
    • CONTROL SYSTEM FOR AUTOMATIC TRANSMISSION
    • 自动变速控制系统
    • US20090234547A1
    • 2009-09-17
    • US12400329
    • 2009-03-09
    • Takashige HINAMIOsamu SATO
    • Takashige HINAMIOsamu SATO
    • B60W10/10G06F17/00B60W30/18
    • F16H61/061F16H2061/0087F16H2061/0258Y10T477/60
    • A control system including a friction engagement element, a solenoid valve, an engagement pressure control valve and an electronic control unit, wherein a learning correction amount is divided into an initial learning amount that has no dependence upon an engagement pressure command value and a time-dependent deterioration amount that has dependence upon the engagement pressure command value, and wherein a time-dependent deterioration correction amount is determined according to the engagement pressure command value and a degree of progress of time-dependent deterioration that is indicated by a difference between a learning region correction amount and an initial learning amount which are obtained by a learning control in a learning region that is a limited input torque region, and a final engagement pressure command value is calculated as the learning correction amount by adding the initial learning amount at the time of correction to the time-dependent deterioration correction amount.
    • 一种包括摩擦接合元件,电磁阀,接合压力控制阀和电子控制单元的控制系统,其中学习校正量被分为初始学习量,其不依赖于接合压力指令值和时间 - 依赖于接合压力指令值的依赖劣化量,并且其中根据接合压力指令值和随时间变化的进行程度确定时间依赖性劣化校正量,该程度由学习 区域校正量和通过作为受限输入转矩区域的学习区域中的学习控制获得的初始学习量,并且通过将当前的初始学习量相加来计算最终接合压力指令值作为学习校正量 对时间依赖的劣化校正量进行校正 。