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    • 51. 发明授权
    • Automatic transmission control device
    • 自动变速箱控制装置
    • US08838350B2
    • 2014-09-16
    • US14004584
    • 2012-03-07
    • Yukiyoshi Inuta
    • Yukiyoshi Inuta
    • B60W10/02F16H63/50B60W10/04F16H61/06F16H61/04F16H61/12F16H61/686F16H59/46
    • B60W10/02B60W10/04F16H61/04F16H61/06F16H61/12F16H61/686F16H63/50F16H2059/465F16H2061/064F16H2063/508
    • When gear shift to second gear shift stage is completed and frictional engagement element is judged to be in slip state by slip state judging unit in a state in which input torque is input torque upper limit value, a value obtained by subtracting first predetermined amount from the input torque upper limit value is set as a decrease side input torque upper limit value. When next gear shift to the second gear shift stage is completed with the decrease side input torque upper limit value set and the frictional engagement element is not judged to be in slip state by the slip state judging unit in a state in which the input torque is the decrease side input torque upper limit value, a value obtained by adding second predetermined amount to the decrease side input torque upper limit value is set as a new input torque upper limit value.
    • 在输入转矩为输入转矩上限值的状态下,通过滑差状态判断部判断为变速到第二变速级的摩擦接合元件处于滑动状态,通过从第 输入转矩上限值被设定为减速侧输入转矩上限值。 当在输入转矩为输入转矩的状态下,通过滑差状态判断单元在减小侧输入转矩上限值设定的情况下完成了到第二变速级的下一个变速而摩擦接合元件未被判定为滑动状态时, 减速侧输入转矩上限值,通过将第二预定量与减速侧输入转矩上限值相加而获得的值被设定为新的输入转矩上限值。
    • 57. 发明授权
    • Control apparatus for vehicular automatic transmission
    • 车辆自动变速箱控制装置
    • US6102826A
    • 2000-08-15
    • US373237
    • 1999-08-12
    • Tooru TakahashiKenji Nakajima
    • Tooru TakahashiKenji Nakajima
    • F16H61/00F16H61/12F16H61/686F16H63/02
    • F16H61/12F16H2059/006F16H2059/0221F16H2061/1204F16H2061/1232F16H2061/1236F16H2061/1268F16H2200/2097F16H61/686Y10S477/906
    • A plurality of shift control valves for independently controlling the supply of hydraulic oil to, and the discharge thereof from, a plurality of hydraulic engaging elements are divided into a first group of shift control valves which establish a predetermined-speed transmission train and a second group of shift control valves corresponding to the other hydraulic engaging elements. A fail-safe valve is interposed between an oil supply passage which is connected to a hydraulic pressure source and the second group of speed change control valves. The fail-safe valve is switched to a closed position in a condition in which the hydraulic oil is supplied to all of such plurality of hydraulic engaging elements as are not to be engaged at the same time, whereby the oil supply passage is connected only to the first group of shift control valves. Each of the first group of shift control valves is provided with an oil chamber for urging it toward an oil supply position. Each of the oil chambers is connected to the oil supply passage via the fail-safe valve in the closed position thereof. At the time of failure, the line pressure from the oil supply passage is inputted into oil chambers to thereby forcibly switch the first group of shift control valves to the oil supply position. The hydraulic oil is thus supplied to the corresponding hydraulic engaging elements.
    • 用于独立地控制从多个液压接合元件供给液压油和从多个液压接合元件排出的多个变速控制阀被分成第一组变速控制阀,其建立预定速度传动系和第二组 对应于其它液压接合元件的变速控制阀。 在连接到液压源的供油通道和第二组变速控制阀之间插入故障安全阀。 在将液压油同时供给到所有这些多个液压接合元件的状态下,故障安全阀切换到关闭位置,同时不进行接合,由此供油通道仅连接到 第一组变速控制阀。 第一组换档控制阀中的每一个设置有用于将其推向供油位置的油室。 每个油室在其关闭位置通过故障安全阀连接到供油通道。 在故障时,来自供油路的管路压力被输入油室,从而将第一组变速控制阀强制切换到供油位置。 因此,液压油被供应到相应的液压接合元件。
    • 60. 发明授权
    • Gear ratio shift control system for automatic vehicle transmission
    • 变速比变速控制系统,用于自动车辆传动
    • US5964675A
    • 1999-10-12
    • US140283
    • 1998-08-26
    • Takamichi ShimadaNoboru Sekine
    • Takamichi ShimadaNoboru Sekine
    • F16H3/66F16H61/00F16H61/06F16H61/686F16H61/08
    • F16H61/061F16H2061/0087F16H2061/0462F16H2200/201F16H2200/2097F16H3/666F16H61/686Y10T477/6425Y10T477/755
    • A system for controlling gear (gear ratio) shifting in an automatic transmission mounted on a vehicle, including a shift control means for generating a shift command to upshift from one gear (gear ratio) currently established to a next gear (gear ratio) by determining a command to the solenoid valves to discharge the pressurized oil from the frictional engaging elements that establish the current gear (gear ratio) so as to slip-control the frictional engaging elements, and to charge the pressurized oil to the frictional engaging elements that establish the next gear (gear ratio) to be shifted to. The system includes a first step for determining the command such that an actual slip rate of the frictional engaging elements that establish the current gear (gear ratio) converges to a first desired slip rate, a second step for determining the command such that the actual slip rate of the frictional engaging elements that establish the current gear (gear ratio) converges to a second desired slip rate, maximum slip rate detecting means for detecting a maximum actual slip rate, slip rate difference calculating means for calculating a difference between the detected maximum actual slip rate and the second desired slip rate, command correcting means for correcting the command in response to the calculated difference, and command storing means for storing the corrected command to be used as the command in the first step in controlling a next upshift. This arrangement can avoid the clutches (and brakes) from being suffered excessive slippage, thereby improving the service life of the clutches and brakes and making the control to smooth shift to that for the next gear (gear ratio).
    • 一种用于控制安装在车辆上的自动变速器中的齿轮(齿轮比)变速的系统,包括:变速控制装置,用于产生从当前建立的当前建立的转速(齿轮比)向下一档(变速比)升档的换档指令, 电磁阀的命令,用于从建立当前齿轮(齿轮比)的摩擦接合元件排出加压油,以便滑动控制摩擦接合元件,并将加压油装载到建立 下一档(齿轮比)要转移到。 该系统包括用于确定命令的第一步骤,使得建立当前齿轮(齿轮比)的摩擦接合元件的实际滑移率收敛到第一期望滑差率,第二步骤,用于确定该命令,使得实际滑差 确定当前齿轮(齿轮比)的摩擦接合元件的速率收敛到第二期望滑移率,用于检测最大实际滑移率的最大滑移率检测装置,滑差率差计算装置,用于计算检测到的最大实际 滑差率和第二期望滑差率,用于响应于计算出的差异来校正命令的命令校正装置,以及用于存储要用作第一步骤中的命令的校正命令的命令存储装置,用于控制下一个升档。 这种布置可以避免离合器(和制动器)发生过大的滑动,从而提高离合器和制动器的使用寿命,并使控制平稳地转换到下​​一档(齿轮比)。