Integrated engine and transmission control system
    71.
    发明授权
    Integrated engine and transmission control system 失效
    集成发动机和变速器控制系统

    公开(公告)号:US5583766A

    公开(公告)日:1996-12-10

    申请号:US350773

    申请日:1994-12-07

    Abstract: A control system is provided for a vehicle regulating engine speed during shifts so as to reduce driveline torque and shift shock. The control system includes separate microprocessor based engine and transmission controllers which communicate via a data link. When a shift is initiated, the transmission controller delays a first period of time CTSDELAY sufficient for the transmission to disengage the old gear ratio and then produces a CTSSPEED signal. The transmission controller continues to produce the CTSSPEED signal for a second period of time CTSDUR which corresponds to the time required for the transmission to engage the new gear ratio. The engine controller receives the desired engine speed signal and regulates engine speed into correspondence with the desired speed. During upshifts, the CTSSPEED signal is set to a speed which is a predetermined amount above the synchronization speed of the new gear for an upshift. Conversely, during downshifts, the CTSSPEED is set to a speed which is a predetermined amount below the synchronization speed in the new gear. The control system preferably includes a unit [means] for sensing a lockup time period corresponding to the time required for the transmission to lock up in the new gear ratio. The control system is capable of modifying the second time period CTSDUR as a function of the sensed lockup time period.

    Abstract translation: 提供一种控制系统,用于在换档期间调节发动机转速的车辆,以减少传动系扭矩和换档冲击。 控制系统包括通过数据链路进行通信的基于微处理器的引擎和传输控制器。 当发生换档时,变速器控制器延迟第一时间段CTSDELAY足以使变速器脱离旧齿轮比,然后产生CTSSPEED信号。 变速器控制器继续产生CTSSPEED信号,持续第二时间段CTSDUR,其对应于变速器接合新传动比所需的时间。 发动机控制器接收期望的发动机速度信号并且将发动机速度调节为与期望速度相对应。 在升档期间,CTSSPEED信号被设定为高于用于换高档的新档的同步速度的预定量的速度。 相反,在降挡期间,CTSSPEED被设定为低于新齿轮中的同步速度的预定量的速度。 控制系统优选地包括用于感测对应于变速器以新的传动比锁定所需的时间的锁定时间段的单元[装置]。 控制系统能够根据感测到的锁定时间段来修改第二时间段CTSDUR。

    Quick shift hydraulic control for a two stage jump shift
    73.
    发明授权
    Quick shift hydraulic control for a two stage jump shift 失效
    快速换档液压控制两级跳档

    公开(公告)号:US5573478A

    公开(公告)日:1996-11-12

    申请号:US315065

    申请日:1994-09-29

    Abstract: A controller for an automatic transmission which reduces wear of frictional engagement elements and shortens gear change time even when a gear change jump is made. The controller of the present invention includes a first hydraulic servo to which oil is supplied to make a gear change jump, a second hydraulic servo to which oil is supplied to make a gear change to an intermediate gear stage, a limited supply oil circuit having an oil flow limiting element, a quick supply oil circuit bypassing the oil flow limiting element and a pressure governor for regulating a line pressure to supply oil at a controlled pressure to the quick supply oil circuit. An oil path switching valve switches oil supply, to the first hydraulic servo or the second hydraulic servo, between the limited supply oil circuit and the quick supply oil circuit. Accordingly, when a gear change jump is made, oil is supplied to the first hydraulic servo via the quick supply oil circuit and the operating pressure can be increased quickly, so that the gear change time is shortened.

    Abstract translation: 一种用于自动变速器的控制器,其减少摩擦接合元件的磨损,并且即使在进行变速跳变时也缩短变速时间。 本发明的控制器包括:第一液压伺服机构,供给油以进行齿轮变速跳闸;第二液压伺服机构,供油供变速换档到中间齿轮级;有限供油回路,其具有 油流量限制元件,绕过油流限制元件的快速供油回路和用于调节管路压力的压力调节器,以将控制压力的油供应到快速供油回路。 油路切换阀在有限供油回路和快速供油回路之间切换供油到第一液压伺服或第二液压伺服。 因此,当进行变速跳跃时,通过快速供油回路向第一液压伺服机构供给油,能够快速地提高作业压力,缩短变速时间。

    Hydraulic bypass to back pressure chamber of a clutch accumulator
    74.
    发明授权
    Hydraulic bypass to back pressure chamber of a clutch accumulator 失效
    液压旁路到离合器蓄能器的背压室

    公开(公告)号:US5565001A

    公开(公告)日:1996-10-15

    申请号:US285105

    申请日:1994-08-03

    CPC classification number: F16H61/0276 Y10T477/6937 Y10T477/69377

    Abstract: A control apparatus for a hydraulically operated vehicular transmission having a plurality of hydraulic engaging elements has an accumulator which is connected in parallel with a hydraulic engaging element for a low-speed transmission train and a back pressure generating source which generates a hydraulic oil pressure to be supplied to a back pressure chamber of the accumulator. The control apparatus includes a changeover valve which can be changed over between a first position in which the back pressure chamber of the accumulator and the back pressure generating source are brought into communication with each other and a second position in which the communication is cut off to lower a pressure in the back pressure chamber. The changeover valve is arranged to be changed over from the second position to the first position when a hydraulic oil pressure in the hydraulic engaging element for the low-speed transmission train has exceeded a predetermined pressure.

    Abstract translation: 用于具有多个液压接合元件的液压操作车辆变速器的控制装置具有与用于低速传动系的液压接合元件和产生液压油压力的背压发生源并联连接的蓄能器 供给蓄能器的背压室。 所述控制装置包括切换阀,所述切换阀能够在蓄能器的背压室与所述背压发生源彼此连通的第一位置与所述连通被切断的第二位置之间切换成 降低背压室中的压力。 当低速传动系的液压接合元件的液压油压超过预定压力时,转换阀被布置成从第二位置切换到第一位置。

    Shift control system for automatic transmission
    76.
    发明授权
    Shift control system for automatic transmission 失效
    自动变速箱换档控制系统

    公开(公告)号:US5527236A

    公开(公告)日:1996-06-18

    申请号:US253777

    申请日:1994-06-03

    Abstract: A shift control system for an automatic transmission including frictional engagement elements to be applied by actuating a piston by an oil pressure. The shift control system comprises: a pressure regulating valve for regulating the oil pressure to be fed to the frictional engagement elements and for controlling the regulated pressure level; a shift detector for detecting a shift to be executed by feeding the oil pressure to the frictional engagement elements; a low-pressure standby unit for setting the regulated pressure level of the pressure regulator valve to such a value during a predetermined time period after the shift has been detected that the oil pressure to be fed to the frictional engagement elements moves only the piston; and a booster for controlling the regulated pressure level so that the oil pressure to be fed to the frictional engagement elements may gradually increase after lapse of the predetermined time period.

    Abstract translation: 一种用于自动变速器的变速控制系统,包括通过油压致动活塞而施加的摩擦接合元件。 变速控制系统包括:调压阀,用于调节供给到摩擦接合元件的油压并控制调节压力水平; 换档检测器,用于通过将油压供给到摩擦接合元件来检测要执行的换档; 一个低压待机单元,用于在检测到传送到摩擦接合元件的油压仅移动活塞之后的预定时间段内将压力调节阀的调节压力水平设定为这样的值; 以及用于控制调节压力水平的增压器,使得要供给到摩擦接合元件的油压在经过预定时间段之后可以逐渐增加。

    Control apparatus for hydraulically operated vehicular transmission
    77.
    发明授权
    Control apparatus for hydraulically operated vehicular transmission 失效
    液压操纵车辆变速箱控制装置

    公开(公告)号:US5505672A

    公开(公告)日:1996-04-09

    申请号:US285136

    申请日:1994-08-03

    Abstract: In a control apparatus for a hydraulically operated vehicular transmission which has a plurality of hydraulic engaging elements, an orifice is disposed in an oil passage which is communicated with a hydraulic engaging element for a low-speed transmission train. The control apparatus has a bypass passage which bypasses the orifice, a control valve which can be switched between a communicated state in which the bypass passage is in communication and a cut-off state in which the communication of the bypass passage is cut off, and a control circuit which changes over the control valve to the communicated state under a predetermined condition at a time of switching from a running range to a neutral range.

    Abstract translation: 在具有多个液压接合元件的液压操作车辆变速器的控制装置中,在油路中设置有与低速传动系的液压接合元件连通的油路。 所述控制装置具有绕过所述节流孔的旁路通路,能够在所述旁路通路连通的连通状态与所述旁通通路的通路被切断的切断状态之间切换的控制阀,以及 控制电路,在从运行范围切换到中立范围时,在规定条件下将控制阀切换到通信状态。

    Shift control system for automatic transmission
    78.
    发明授权
    Shift control system for automatic transmission 失效
    自动变速箱换档控制系统

    公开(公告)号:US5489248A

    公开(公告)日:1996-02-06

    申请号:US319542

    申请日:1994-10-07

    Applicant: Mitsugi Tazawa

    Inventor: Mitsugi Tazawa

    Abstract: A shift control system for an automatic power transmission is capable of optimizing operation timing of a timing valve and whereby eliminate a shift-shock and occurrence of racing. The system includes an input device including a detector for detecting a vehicle speed and a load detector for detecting an engine load, a switching device for switching states of the friction elements for establishing the transmission speed ratios, a switching controller for selecting a transmission speed ratio among the speed ratios on the basis of the inputs from the input device and issuing a shifting demand for the switching device, a measuring device for measuring an elapsed time from a timing of recognition of the shifting demand from the switching controller, a timing adjusting device for adjusting response of hydraulic pressure supply for the friction elements upon down-shifting, a weighting and summing derive for deriving weighted sum of inputs including at least the vehicle speed, the elapsed time from the timing of recognition of the shifting demand and the engine load, upon down-shifting, and a timing control device for outputting a control signal to operate the timing adjusting devicee to perform a predetermined operation when the weighted sum derived by the weighting and summing device exceeds a predetermined threshold value.

    Abstract translation: 用于自动动力传递的换档控制系统能够优化定时阀的操作定时,从而消除换档冲击和赛车的发生。 该系统包括:输入装置,包括用于检测车速的检测器和用于检测发动机负载的负载检测器;用于切换用于建立变速比的摩擦元件的状态切换装置;切换控制器,用于选择传动速度比 根据来自输入装置的输入和发出对切换装置的移动需求的速度比,测量装置,用于根据来自切换控制器的移动需求的识别定时测量经过时间,定时调整装置 用于调节在下移时摩擦元件的液压供应的响应,加权和求和导出用于导出至少包括车速的输入的加权和,从转换需求的识别时间到发动机负载的经过时间 以及用于输出控制信号以操作定时调整的定时控制装置 当由加权和求和装置导出的加权和超过预定阈值时执行预定操作。

    Automatic transmission control system for automobiles
    79.
    发明授权
    Automatic transmission control system for automobiles 失效
    汽车自动变速器控制系统

    公开(公告)号:US5487708A

    公开(公告)日:1996-01-30

    申请号:US290637

    申请日:1994-08-16

    CPC classification number: F16H61/0206 F16H61/12 F16H2061/1204 F16H61/686

    Abstract: An automatic transmission control system has a plurality of frictional coupling elements within an automatic transmission which are selectively locked and unlocked in a particular way to place the automatic transmission into any desired gear in various ranges. Two specific frictional coupling elements, such as a low/reverse brake and a 3/4 clutch, may potentially cause mechanical locking of the automatic transmission when they are locked simultaneously. The automatic transmission control system, however, includes a first valve for connecting and disconnecting a supply of hydraulic pressure to the low/reverse frictional coupling element to lock and unlock the low/reverse frictional coupling element in low speed and reverse ranges, and a second valve for connecting and disconnecting a supply of hydraulic pressure to the 3/4 frictional coupling element to lock and unlock the 3/4 frictional coupling element. The first and second valves are disposed in series between a hydraulic pressure source and the low/reverse frictional coupling element and cooperate with each other so as to connect supply of hydraulic pressure alternatively to the low/reverse frictional coupling element and the specific frictional coupling element.

    Abstract translation: 自动变速器控制系统具有在自动变速器内的多个摩擦联接元件,其以特定方式选择性地锁定和解锁,以将自动变速器置于各种范围内的任何期望的档位。 两个特定的摩擦联接元件,例如低/反向制动器和3/4离合器,当它们被同时锁定时,潜在地可能导致自动变速器的机械锁定。 然而,自动变速器控制系统包括用于连接和断开与低/反向摩擦联接元件的液压供应的第一阀,以在低速和反向范围内锁定和解锁低/反向摩擦联接元件,并且第二阀 阀,用于连接和断开与3/4摩擦联接元件的液压供应,以锁定和解锁3/4摩擦联接元件。 第一和第二阀串联设置在液压源和低/反向摩擦联接元件之间并相互配合,以便连接液压供应与低/反向摩擦联接元件和特定摩擦联接元件 。

    Method and apparatus for speed change control of an automotive automatic
transmission
    80.
    发明授权
    Method and apparatus for speed change control of an automotive automatic transmission 失效
    汽车自动变速器变速控制方法和装置

    公开(公告)号:US5435796A

    公开(公告)日:1995-07-25

    申请号:US258711

    申请日:1994-06-13

    Abstract: During downshift operation of an automotive automatic transmission in which a lower-speed clutch for establishing a lower-speed gear is engaged while higher-speed clutch, which has established a higher-speed gear, is disengaged, to increase the turbine rotational speed Nt toward a synchronous rotation speed Ntj associated with the lower-speed gear, speed change control is carried out according to the same control method regardless of whether the engine is in a power-on or power-off state. A target change rate (Nir)' of turbine rotational speed associated with the higher-speed clutch and a target change rate (Nia)' of turbine rotational speed associated with the lower-speed clutch are set, and a change rate (Nia)' of the turbine rotational speed is detected. The transmission torque through the higher-speed clutch is controlled in a feedback manner such that the detected change rate (Nt)' coincides with the change rate (Nir)'. Further the transmission torque through the lower-speed clutch is feedback-controlled such that the change rate (Nt)' coincides with the change rate (Nia)', thereby carrying out downshift.

    Abstract translation: 在用于建立低速齿轮的低速离合器接合的汽车自动变速器的降档操作中,建立了更高速齿轮的高速离合器被分离,以将涡轮转速Nt朝向 与低速档相关联的同步转速Ntj根据相同的控制方法执行速度变化控制,而不管发动机是否处于通电或断电状态。 设定与高速离合器相关联的涡轮转速的目标变化率(Nir)和与低速离合器相关联的涡轮转速的目标变化率(Nia),变化率(Nia) 的涡轮转速。 通过高速离合器的传递扭矩以反馈方式进行控制,使得检测的变化率(Nt)“与变化率(Nir)”一致。 此外,通过低速离合器的传递扭矩被反馈控制,使得变化率(Nt)“与变化率(Nia)”一致,从而进行降档。

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