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    • 3. 发明申请
    • METHOD AND APPARATUS FOR OPERATING A CLUTCH IN AN AUTOMATED MECHANICAL TRANSMISSION
    • 用于在自动机械传动中操作离合器的方法和装置
    • WO9846907A2
    • 1998-10-22
    • PCT/US9807606
    • 1998-04-15
    • TRANSMISSION TECHNOLOGIES CORPPATEL ANAND CWHEELER JAMES ASZYMANSKI PETER T
    • PATEL ANAND CWHEELER JAMES ASZYMANSKI PETER T
    • B60W10/02B60W10/06B60W30/18F16D48/06F16H61/66F16H
    • B60W10/06B60W10/02B60W10/10B60W30/18B60W2510/0216B60W2510/0638B60W2510/0657B60W2710/023F16D48/066F16D2500/10412F16D2500/1083F16D2500/3026F16D2500/30401F16D2500/30415F16D2500/3065F16D2500/3067F16D2500/30825F16D2500/3144F16D2500/7041F16D2500/70454F16H61/66
    • An apparatus and method for controlling the operation of a clutch in a partially or fully automated mechanical transmission which is responsive to the actual load on the vehicle engine for varying the engagement rate of release bearing during re-engagement of the clutch. The apparatus includes an electronic controller which initially sets a desired speed for the vehicle engine during the shifting process, determines a rate of engagement movement of a release bearing of the clutch, and actuates appropriate valves to initiate the gradual engagement of the clutch. The electronic controller sets a first lower engine speed threshold and a second lower engine speed threshold. In a first embodiment, the magnitude of the first lower engine speed threshold varies with the actual load on the engine. If the actual speed of the engine remains above both the first lower engine speed threshold and the second lower engine speed threshold, the engagement process is continued without interruption. If the actual speed of the engine drops below the first lower engine speed threshold but remains above the second lower engine speed threshold, the release bearing is held in its current position until the actual speed of the engine recovers above the first lower engine speed threshold. If the actual speed of the engine drops below both the first lower engine speed threshold and the second lower engine speed threshold, the engagement process is aborted, and the release bearing is returned to the disengaged position until the actual speed of the engine recovers above an engagement re-start speed threshold. In a second embodiment, the magnitude of the first lower engine speed threshold varies with both the actual load on the engine and the amount of depression of an accelerator pedal of the vehicle.
    • 一种用于控制部分或全自动机械变速器中的离合器的操作的装置和方法,其响应于车辆发动机上的实际负载,以在离合器的再接合期间改变释放轴承的接合速率。 该装置包括电子控制器,其在换档过程期间初始设定车辆发动机的期望速度,确定离合器的释放轴承的接合运动速率,并且启动适当的阀以启动离合器的逐渐接合。 电子控制器设置第一较低的发动机转速阈值和第二较低的发动机转速阈值。 在第一实施例中,第一较低发动机转速阈值的大小随着发动机上的实际负载而变化。 如果发动机的实际速度保持高于第一较低发动机速度阈值和第二较低发动机转速阈值,则接合过程继续而不间断。 如果发动机的实际速度低于第一较低的发动机速度阈值,但是保持在第二较低的发动机速度阈值之上,则释放轴承保持在其当前位置,直到发动机的实际速度恢复到高于第一较低的发动机转速阈值。 如果发动机的实际速度低于第一较低发动机速度阈值和第二较低发动机速度阈值,则接合过程被中止,并且释放轴承返回到脱离位置,直到发动机的实际速度恢复到高于 接合重启速度阈值。 在第二实施例中,第一较低发动机速度阈值的大小随着发动机上的实际负载和车辆的加速器踏板的下压量而变化。