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    • 10. 发明授权
    • Automatic clutch control system
    • 自动离合器控制系统
    • US4671397A
    • 1987-06-09
    • US674825
    • 1984-11-26
    • Yasuyoshi AsagiNoriaki OgawaShigeki MorideToshihiro HattoriKatsuya Shishido
    • Yasuyoshi AsagiNoriaki OgawaShigeki MorideToshihiro HattoriKatsuya Shishido
    • B60W30/18B60W50/02F16D48/06F16H63/46B60K41/02B60K41/28
    • B60W30/18B60W10/02B60W10/04B60W30/1819F16D48/066B60W2050/021B60W2510/0225B60W2510/0638B60W2510/1015B60W2540/10B60W2710/022F16D2500/1024F16D2500/1085F16D2500/3026F16D2500/3067F16D2500/30806F16D2500/3108F16D2500/3144F16D2500/31466F16D2500/70229F16D2500/70235F16D2500/7041F16H63/46Y10S477/906Y10T477/6425
    • An automatic clutch control system and method for controlling a clutch for an automatic transmission when a clutch stroke sensor fails. The apparatus includes a clutch actuator for controlling a clutch stroke, a plurality of solenoid valves for controlling the clutch actuator, a clutch stroke sensor for measuring the clutch stroke, a control unit for feeding back a stroke signal detected by the clutch stroke sensor when requests for clutch engagement or disengagement are received and for controlling the solenoid valves so as to obtain a clutch moving speed defined by an engine rotational speed and other driving conditions. The control unit further includes a clutch engagement control section and a clutch disengagement control section for controlling solenoid valves for operating the clutch independently of the stroke signal when the stroke sensor fails. The control unit detects a failure of the stroke sensor by defining an upper limit value and a lower limit value for the stroke signal and when the stroke signal exceeds the upper limit value or is lower than the lower limit value it is determined that the stroke sensor has failed. The method includes the steps of setting the upper and lower limit values for the stroke signal, detecting a clutch stroke sensor failure by determining if the value of the stroke signal exceeds the upper limit or is less than the lower limit and operating the clutch at a predetermined speed if a stroke sensor failure is detected.
    • 一种当离合器行程传感器失效时用于控制用于自动变速器的离合器的自动离合器控制系统和方法。 该装置包括用于控制离合器行程的离合器致动器,用于控制离合器致动器的多个电磁阀,用于测量离合器行程的离合器行程传感器,当请求时用于反馈由离合器行程传感器检测到的行程信号的控制单元 用于离合器接合或分离,并且用于控制电磁阀以获得由发动机转速和其它驾驶条件限定的离合器移动速度。 控制单元还包括离合器接合控制部分和离合器分离控制部分,用于当行程传感器发生故障时,独立于行程信号控制用于操作离合器的电磁阀。 控制单元通过定义行程信号的上限值和下限值来检测行程传感器的故障,并且当行程信号超过上限值或低于下限值时,确定行程传感器 失败了。 该方法包括以下步骤:通过确定行程信号的值是否超过上限或小于下限,并且将离合器操作在一个位置处,来设定行程信号的上限和下限值,检测离合器行程传感器故障 检测到行程传感器故障时的预定速度。