Control system for torque converter
    2.
    发明授权
    Control system for torque converter 失效
    变矩器控制系统

    公开(公告)号:US5339935A

    公开(公告)日:1994-08-23

    申请号:US928165

    申请日:1992-08-13

    IPC分类号: F16H61/02 F16H61/14 F16H45/02

    摘要: A control system for a torque converter includes a lock-up clutch provided in the torque converter for connecting input and output members of the torque converter directly, and a shift valve having first and second spools disposed in series in a sleeve for shifting an introduction of an engaging and releasing pressure acting on the lock-up clutch in accordance with positions of the first and second spools. The first spool is subjected to a first hydraulic pressure at one end thereof. The second spool is subjected to a second hydraulic pressure at one end thereof opposite to the one end of the first spool. The first and second spools are subjected to a third hydraulic pressure therebetween. The control system further has a first control device for controlling the first hydraulic pressure, and an adjusting valve for controlling the releasing pressure of the lock-up clutch. The shift valve provides the first and second spools with first, second and third positions corresponding to a converter condition, lock-up condition and slip condition, respectively. The shift valve is shifted between the second and third positions when the releasing pressure is relatively low so that the releasing pressure is continuously changed irrespective of the shifting action among the first, second and third positions of the shift valve. An abrupt change in the engaging force of the lock-up clutch is prevented.

    摘要翻译: 用于变矩器的控制系统包括设置在变矩器中用于直接连接变矩器的输入和输出构件的锁止离合器,以及具有串联设置在套筒中的第一和第二线轴的换档阀, 根据第一和第二卷轴的位置,作用在锁止离合器上的接合和释放压力。 第一阀芯在其一端经受第一液压。 第二阀芯在与第一阀芯的一端相对的一端处受到第二液压。 第一和第二线轴之间经受第三液压。 控制系统还具有用于控制第一液压的第一控制装置和用于控制锁止离合器的释放压力的调节阀。 换档阀提供第一和第二线轴,其中第一,第二和第三位置分别对应于转换器状态,锁定状态和滑动状态。 当释放压力相对较低时,换档阀在第二和第三位置之间移动,使得释放压力连续地改变,而与换挡阀的第一,第二和第三位置之间的换档动作无关。 防止了锁止离合器的接合力的突然变化。

    Control systems for vehicle engines coupled with automatic transmissions
    5.
    发明授权
    Control systems for vehicle engines coupled with automatic transmissions 失效
    车辆发动机的控制系统与自动变速器相结合

    公开(公告)号:US5091854A

    公开(公告)日:1992-02-25

    申请号:US356451

    申请日:1989-05-23

    摘要: A control system for a vehicle engine coupled with an automatic transmission, which comprises a detecting portion for detecting a condition of speed change operation in the automatic transmission, a speed sensor for detecting engine speed or turbine speed in the automatic transmission, a first period determining portion for determing a first period of time, in which the speed change operation is to be carried out, by calculation based on the speed detected by the speed sensor, a second period determining portion for determining a second period of time, in which the speed change operation is to be carried out, in accordance with a predetermined lapse of time after the condition of the speed change operation is selected, and a torque control portion operative to vary torque produced by the vehicle engine to suppress torque shock resulting from the speed change operation during the first period of time when a condition of shifting-up operation is detected by the detecting portion and to vary the torque so as to suppress torque shock resulting from the speed change operation during the second period of time when a condition of predetermined shifting-down operation is detected by the detecting portion.

    摘要翻译: 一种与自动变速器连接的车辆发动机的控制系统,包括用于检测自动变速器中的变速操作的状态的检测部分,用于检测自动变速器中的发动机转速或涡轮转速的速度传感器,第一时段确定 用于通过基于由速度传感器检测的速度的计算来确定要进行变速操作的第一时间段的部分,用于确定第二时间段的第二时间段确定部分,其中速度 在选择变速操作的条件之后,根据预定的经过时间进行改变操作;以及转矩控制部,其操作以改变由车辆发动机产生的转矩,以抑制由速度变化引起的转矩冲击 在检测部检测出上升操作的条件的第一时间段期间的操作,v 以便在由检测部检测到预定的下降动作的条件的第二时间段期间抑制由变速操作引起的转矩冲击。

    Control system for automatic transmission
    6.
    发明授权
    Control system for automatic transmission 失效
    自动变速控制系统

    公开(公告)号:US5224399A

    公开(公告)日:1993-07-06

    申请号:US824544

    申请日:1992-01-23

    IPC分类号: F16H61/04

    摘要: A control system for an automatic transmission includes a main hydraulic line to which hydraulic pressure is introduced when a manual valve takes a reverse range position for reverse movement. First and second hydraulic lines are separated from the main hydraulic line, a first frictional element is connected with the first hydraulic line, and a second frictional element is connected with the second hydraulic line. An accumulator is disposed on the second hydraulic line, a shift valve is disposed on the second hydraulic line closer to the second frictional element than the accumulator, and a first drain port is formed on the manual valve for draining hydraulic fluid from the main hydraulic line when the manual valve is shifted from the reverse range to another range. A spool is disposed in the shift valve for moving to a position to shift the shift valve so that the second line is interrupted by the shift valve and divided between a second frictional element line and an accumulator line. A second drain port is formed in the shift valve for draining the hydraulic fluid in the second frictional element line when the spool moves to the position where the shift valve interrupts the second hydraulic line between the second frictional element line and the accumulator line. A shift shock can be suppressed in a shifting operation involving the reverse range.

    摘要翻译: 用于自动变速器的控制系统包括当手动阀进行反向运动的倒档位置时引入液压的主液压管路。 第一和第二液压管路与主液压管线分离,第一摩擦元件与第一液压管线连接,第二摩擦元件与第二液压管路连接。 蓄能器设置在第二液压管路上,在比第二液压管线更靠近第二摩擦元件的第二液压管路上设置换档阀,并且在手动阀上形成有第一排水口,用于从主液压管路排出液压油 当手动阀从反向范围移动到另一个范围时。 一个阀芯设置在换档阀中,用于移动到换挡阀的位置,使得第二管路被换挡阀中断,并且在第二摩擦元件线和蓄能器管线之间分配。 第二排水口形成在换档阀中,当阀芯移动到换挡阀中断第二摩擦元件线和蓄能器管线之间的第二液压管路的位置时,排出第二摩擦元件线中的液压流体。 在涉及相反范围的换档操作中可以抑制换档冲击。

    Switch and arc extinguishing material for use therein
    8.
    发明授权
    Switch and arc extinguishing material for use therein 失效
    用于其中的开关和灭弧材料

    公开(公告)号:US5841088A

    公开(公告)日:1998-11-24

    申请号:US399578

    申请日:1995-03-07

    IPC分类号: H01H9/30 H01H33/02

    CPC分类号: H01H9/302 H01H9/30

    摘要: A switch comprising a switch case, contacts adapted to be opened and closed, an arc extinguishing chamber disposed in the vicinity of the contacts, and an arc extinguishing material capable of reducing the amount of metal particles and free carbons to be scattered from components disposed within the switch by an arc generated when the contacts are opened or closed or capable of insulating the metal particles and the free carbons to convert into an insulator, thereby inhibiting a decrease in arc resistance expected to occur upon the generation and extinction of the arc and a decrease in insulation resistance expected to occur within and around the arc extinguishing chamber and at inner wall surfaces of the switch case upon and after the extinction of the arc. The switch according to the present invention is applicable to a switch expected to generate an arc upon interruption of electric current flowing therethrough such as a circuit breaker, current-limiting device or electromagnetic contactor and is capable of immediately extinguishing the arc and inhibiting the decrease in insulation resistance within and around the arc extinguishing chamber and at inner wall surfaces of the switch case.

    摘要翻译: 一种开关,包括开关壳体,适于打开和关闭的触点,设置在触点附近的灭弧室,以及能够减少金属颗粒和游离碳从待配置的组件散射的量的灭弧材料 当触点打开或闭合时产生的电弧的切换或能够使金属颗粒和游离碳绝缘转化为绝缘体,从而抑制在电弧的产生和消除时预期发生的电弧阻力的降低,以及 预期在灭弧室内和周围以及在电弧灭弧之后在开关壳体的内壁表面发生绝缘电阻的降低。 根据本发明的开关可应用于期望在诸如断路器,限流装置或电磁接触器之类的电流中断时产生电弧的开关,并且能够立即熄灭电弧并且抑制 灭弧室内部和周围以及开关箱内壁表面的绝缘电阻。

    Control system for automatic transmission
    9.
    发明授权
    Control system for automatic transmission 失效
    自动变速器控制系统

    公开(公告)号:US5275069A

    公开(公告)日:1994-01-04

    申请号:US66594

    申请日:1993-05-25

    摘要: A shift control system for an automatic transmission includes a shift gear mechanism for providing a plurality of shift stages of different speed ratios, a plurality of frictional elements, a first valve for controlling a hydraulic fluid supply, a second valve provided in a hydraulic release line to control hydraulic fluid release, a first frictional element included in the plurality of the frictional elements, a second frictional element included in the plurality of the frictional elements, a piston provided in the second frictional element, a timing valve for controlling a supply timing of the hydraulic pressure for the releasing chamber of the second frictional element in response to actuating hydraulic pressure introduced into the first frictional element, an oil temperature detecting device, and a start detecting device for detecting start of engaging operation of the first frictional element. A shift judging device for judging whether or not a shift command in the control unit is made to a specific shift stage in which the first frictional element is engaged and the second frictional element, is released. A shift control mode switching device switches between a first shift control mode and a second shift control mode, the shift control mode switching device selecting the first shift control mode when the temperature of the hydraulic fluid is relatively high, and selecting the second shift control mode when the temperature of the hydraulic fluid is relatively low. Torque shock and engine speed racing can be avoided through the shift operation.

    摘要翻译: 一种用于自动变速器的变速控制系统包括用于提供不同速比的多个变速级的变速齿轮机构,多个摩擦元件,用于控制液压流体供给的第一阀,设置在液压释放管线中的第二阀 以控制液压流体释放,包括在所述多个摩擦元件中的第一摩擦元件,包括在所述多个所述摩擦元件中的第二摩擦元件,设置在所述第二摩擦元件中的活塞,用于控制所述摩擦元件的供给时间的定时阀 响应于引入到第一摩擦元件的致动液压,第二摩擦元件的释放室的液压,油温检测装置和用于检测第一摩擦元件的接合操作开始的起动检测装置。 一种换档判断装置,用于判断控制单元中的换档指令是否被制成到第一摩擦元件被接合的特定换挡阶段和第二摩擦元件被释放。 变速控制模式切换装置在第一变速控制模式和第二变速控制模式之间切换,变速控制模式切换装置在液压油的温度相对较高时选择第一变速控制模式,并且选择第二变速控制模式 当液压油的温度相对较低时。 扭矩冲击和发动机转速可以通过换档操作来避免。