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1.发明授权
公开(公告)号：US5435796A
公开(公告)日：1995-07-25
申请号：US258711
申请日：1994-06-13
CPC分类号： F16H61/061 , F16H2059/385 , F16H2059/425 , F16H2061/0078 , F16H2061/0255 , Y10T477/692 , Y10T477/6937 , Y10T477/69383 , Y10T477/69387
摘要： 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.
摘要翻译： 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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公开(公告)号：US5882276A
公开(公告)日：1999-03-16
申请号：US776932
申请日：1997-02-11
CPC分类号： F16H61/08 , F16H2059/385 , F16H2059/425 , F16H2061/0087 , F16H2061/0444 , Y10T477/692 , Y10T477/69383
摘要： A shift control method for an automotive automatic transmission is provided, which reduces a shift shock particularly at the time of a skip down-shift, and shortens a required shifting time period. An electronic control unit of a shift control apparatus releases the engagement of a clutch of a subsidiary transmission mechanism and engages a one-way clutch so as to establish a gear position not used in the normal speed change when a shift command from the fifth shift position to the third shift position is issued, gradually decreasing a valve opening duty ratio of an electromagnetic valve associated with a brake of a main transmission mechanism from an initial value D.sub.HLi before this gear position is established, determines an average turbine rotation speed changing rate dD.sub.TAVE /dt from the detected turbine rotation speed (S203), and learning correction of the initial value D.sub.HLi is made if the changing rate deviates from a target range (S204-S208).
摘要翻译： PCT No.PCT / JP96 / 01593 Sec。 371日期1997年2月11日 102（e）1997年2月11日PCT PCT 1996年6月12日PCT公布。 公开号WO96 / 41978 日期：1996年12月27日提供了一种用于汽车自动变速器的变速控制方法，其特别是在跳下降时，减小了换档冲击，并缩短了所需的换档时间。 变速控制装置的电子控制单元释放辅助传动机构的离合器的接合，并接合单向离合器，以便当从第五档位移动命令时建立不用于正常变速的档位 到达第三档位置时，在建立该变速档位之前，将与主变速机构的制动器相关联的电磁阀的开阀占空比从初始值DHLi逐渐降低，确定平均涡轮转速变化率dDTAVE / （S203），并且如果变化率偏离目标范围，则进行初始值DHLi的学习校正（S204〜S208）。
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公开(公告)号：US5743826A
公开(公告)日：1998-04-28
申请号：US588334
申请日：1996-01-18
IPC分类号： F16H59/36 , F16H59/38 , F16H59/42 , F16H59/72 , F16H61/00 , F16H61/02 , F16H61/04 , F16H61/06 , F16H61/08
CPC分类号： F16H61/08 , F16H2059/385 , F16H2061/0087 , F16H2061/0255 , F16H2061/0485 , F16H2061/0488 , F16H59/36 , F16H59/42 , F16H59/72 , F16H61/061 , Y10T477/653 , Y10T477/692 , Y10T477/6937 , Y10T477/69383
摘要： A speed change control apparatus for an automatic transmission includes a transmission control unit for controlling gear-changing. The control unit discriminates a fluid temperature/rotational speed zone based on the hydraulic fluid temperature and the engine speed at the start of gear-changing, and detects a time period from the end of dead-stroke elimination of an engagement-side hydraulic clutch to the start of actual gear-changing. In the case that a condition for executing learning correction is satisfied and if a time period from the end of the dead-stroke elimination to the start of the actual gear-changing is longer than an upper limit, the control unit increases a learning-correction time with which a dead-stroke-elimination time for the discriminated temperature/speed zone is calculated. The learning-correction time is decreased if such a time period is shorter than a lower limit. By carrying out the learning correction for various temperature/speed, occurrences of degraded shift response and shift shocks resulting from the presence of individual difference of the automatic transmission and an increase or decrease in the engine speed or fluid temperature can be prevented.
摘要翻译： 用于自动变速器的变速控制装置包括用于控制变速的变速器控制单元。 控制单元基于变速开始时的液压流体温度和发动机转速来判别流体温度/转速区域，并且检测从接合侧液压离合器的死路行程消除结束时开始的时间 实际换档开始。 在满足用于执行学习校正的条件的情况下，如果从死区行程消除结束到实际变速开始的时间段长于上限，则控制单元增加学习校正 计算鉴别的温度/速度区域的死冲程消除时间的时间。 如果这样的时间段短于下限，则学习校正时间减少。 通过进行各种温度/速度的学习校正，可以防止由于自动变速器的个体差异的存在和发动机转速或液体温度的增加或减少而导致的劣化换档响应和换档冲击的发生。
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公开(公告)号：US5624351A
公开(公告)日：1997-04-29
申请号：US454178
申请日：1995-06-22
IPC分类号： F16H61/00 , F16H59/14 , F16H59/20 , F16H59/24 , F16H59/40 , F16H59/42 , F16H61/02 , F16H61/04 , F16H61/08
CPC分类号： F16H61/0437 , F16H61/0213 , F16H2059/183 , F16H2061/0444 , F16H2306/24 , F16H59/141 , F16H59/20 , F16H59/24 , F16H59/40 , F16H59/42 , F16H61/08 , F16H61/686 , Y10T477/693637 , Y10T477/693754
摘要： A speed change control method for an automatic transmission, which can achieve a smooth skip downshifting even when a driver depresses an accelerator pedal slowly in kickdown. An electronic control unit 6 calculates, at the time when a predetermined time period elapses from the time when a downshifting command from a fourth speed to a third speed is outputted, a difference between the throttle valve opening degree .theta..sub.t1 at that time and the throttle valve opening degree .theta..sub.ts at the time when the downshifting command is outputted, and a change rate (.dwnarw..sub.t1)' of the throttle valve opening degree at the time when the predetermined time period elapses. If the calculated difference is larger than the threshold value .DELTA..theta. and the calculated change rate is higher than the threshold value .DELTA.(.theta.)' (S10, S11), the electronic control unit 6 outputs a command for canceling the command for downshifting from the fourth speed to the third speed, which has already been outputted (S12), and outputs a command for downshifting from the fourth speed to a second speed (S13).
摘要翻译： PCT No.PCT / JP94 / 01781 Sec。 371日期：1995年6月22日 102（e）日期1995年6月22日PCT 1994年10月24日PCT公布。 公开号WO95 / 12078 日期1995年5月4日用于自动变速器的变速控制方法，即使当驾驶员在降档中缓慢地下压加速踏板时，也能够实现平滑的跳跃降档。 电子控制单元6计算从从第四速度降档到第三速度的降档指令输出之间经过了预定时间段时，此时的节气门开度θt1与节流阀之间的差 输出降档指令时的阀开度θts以及经过了规定时间时的节气门开度的变化率（＆amp; darr＆t1）。 如果计算出的差值大于阈值DELTAθ并且计算出的变化率高于阈值DELTA（θ）'（S10，S11），则电子控制单元6输出用于取消用于降档的命令 已经输出的第四速度到第三速度（S12），并且输出用于从第四速度降档到第二速度的命令（S13）。
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5.发明授权Speed change control apparatus and method of an automotive automatic transmission 失效变速控制装置和汽车自动变速器的方法
公开(公告)号：US5370016A
公开(公告)日：1994-12-06
申请号：US044488
申请日：1993-04-09
IPC分类号： F16H59/46 , F16H61/00 , F16H61/02 , F16H61/06 , F16H61/08 , F16H61/10 , F16H61/684 , F16H59/00
CPC分类号： F16H61/061 , F16H2059/425 , F16H2061/0078 , F16H59/46 , F16H61/684 , Y10T74/1926
摘要： A speed change control and apparatus of an automotive automatic transmission causes a turbine rotational speed to change toward a synchronous rotational speed associated with a desired gear stage by engaging a connection-side clutch while disengaging a release-side clutch, to thereby carry out gear-changing. To reduce a speed change shock, a speed change time is rendered stabilized irrespective of vehicle running state, by carrying out feedback control such that the time-dependent change rate (Ns)' of a rotational speed difference between clutch plates and clutch discs of the connection-side clutch becomes equal to a target slip rotational speed change rate (Ni)'.
摘要翻译： 汽车自动变速器的变速控制装置和装置通过在脱离离合侧离合器的状态下使接合侧离合器接合而使涡轮转速朝着与期望的齿轮级相关的同步转速变化， 改变。 为了减少变速冲击，通过进行反馈控制，使得离合器片和离合器盘之间的转速差的时间变化率（Ns）'与时间相关的变化率Ns 连接侧离合器等于目标滑移转速变化率（Ni）'。
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6.发明授权
公开(公告)号：US5445577A
公开(公告)日：1995-08-29
申请号：US45714
申请日：1993-04-14
CPC分类号： F16H61/061 , F16H2059/385 , F16H2059/425 , F16H2061/0078 , F16H2061/0255 , Y10T477/692 , Y10T477/6937 , Y10T477/69383 , Y10T477/69387
摘要： During downshift operation of an automotive automatic transmission in which a lower-speed clutch for establishing a lower-speed gear is engaged while a 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 (Nt)' 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)', and also 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.
摘要翻译： 在用于建立较低速齿轮的较低速离合器接合的汽车自动变速器的降档操作中，建立了较高速档的高速离合器被分离，以提高涡轮转速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（Nt） 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，并且通过低速离合器的传递转矩也被反馈控制 使得变化率（Nt）与变化率（Nia）一致，从而进行降档。
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公开(公告)号：US5609549A
公开(公告)日：1997-03-11
申请号：US557946
申请日：1995-11-14
IPC分类号： F16H59/14 , F16H59/24 , F16H59/36 , F16H59/38 , F16H59/40 , F16H59/68 , F16H61/04 , F16H61/12 , F16H63/50
CPC分类号： F16H59/14 , F16H61/12 , B60W2050/021 , F16H2059/385 , F16H2061/1208 , F16H2061/1224 , F16H2061/1284 , F16H2302/04 , F16H59/24 , F16H59/36 , F16H59/40 , F16H59/68 , F16H61/04 , F16H61/686 , Y10S477/906 , Y10T477/6934
摘要： A speed change control apparatus of an automatic transmission has a transmission control unit. When determining a fault of a power-on/off determining section on the basis of engine load information from an engine control unit, the transmission control unit controls an oil pressure controller by regarding an engine as being in a power-on state in upshifting and by regarding the engine as being in a power-off state in downshifting. As a result, in either of upshifting and downshifting, the moment when a disengagement-side friction element of the transmission begins to slip and the moment when an engagement-side friction element is engaged are made proper. This makes it possible to surely prevent undesired rise in the engine rotation during the speed change in upshifting and inability in speed change in downshifting, which are caused by a fault of the power-on/off determining section.
摘要翻译： 自动变速器的变速控制装置具有变速器控制单元。 基于来自发动机控制单元的发动机负载信息来确定通电/断开确定部分的故障，变速器控制单元通过将发动机视为处于升档中的通电状态来控制油压控制器，以及 通过关于发动机在降档中处于断电状态。 结果，在升档和降档中，当变速器的脱离侧摩擦元件开始滑动的时刻和接合侧摩擦元件接合的时刻都适当。 这使得可以可靠地防止由于电源接通/断开确定部分的故障而导致的升档速度变化和换档速度变化不能导致发动机旋转的不期望的上升。
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8.发明授权
公开(公告)号：US5443432A
公开(公告)日：1995-08-22
申请号：US257907
申请日：1994-06-13
CPC分类号： F16H61/061 , F16H2059/385 , F16H2059/425 , F16H2061/0078 , F16H2061/0255 , Y10T477/692 , Y10T477/6937 , Y10T477/69383 , Y10T477/69387
摘要： During downshift operation of an automotive automatic transmission in which a lower-speed clutch for establishing a lower-speed gear is engaged while a 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 (Nt)' 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.
摘要翻译： 在用于建立较低速齿轮的较低速离合器接合的汽车自动变速器的降档操作中，建立了较高速档的高速离合器被分离，以提高涡轮转速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（Nt） 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转矩被反馈控制，使得变化率（Nt）与变化率（Nia）一致，从而进行降档。
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公开(公告)号：US5730683A
公开(公告)日：1998-03-24
申请号：US677784
申请日：1996-07-10
CPC分类号： F16H61/0437 , F16H2061/0255 , F16H59/22 , F16H59/40 , F16H59/42 , Y10T477/636 , Y10T477/6937 , Y10T477/69373 , Y10T477/693754 , Y10T74/19251
摘要： In a shift control method, when a speed ratio of an automatic transmission is shifted from a third speed ratio to a first speed ratio before stoppage of a vehicle, a down shift line 3-1 in a shift pattern is shifted to a high-speed side to initiate shifting under a power-OFF condition. A third brake is released by setting the duty ratio of an electromagnetic valve of the third brake at 0% to establish a free condition (neutral condition) in an output shaft of a second transmission. While the duty ratio of an electromagnetic valve of a second clutch in a first transmission mechanism is set at 0%, the duty ratio of an electromagnetic valve of a second brake is gradually increased, so that the shifting from the second clutch to the second brake is made, and the first transmission mechanism is operatively shifted from the third speed ratio to a speed ratio corresponding to the first speed ratio. Then, the third brake is engaged again upon completion of the shifting and after mechanical engagement of a one-way clutch. Consequently, it is possible to reduce shocks in shifting the speed of the vehicle.
摘要翻译： 在变速控制方法中，当自动变速器的变速比从车辆停止前的第三变速比变速到第一变速比时，变速模式中的向下换档线3-1移动到高速 在电源关闭状态下开始移动。 通过将第三制动器的电磁阀的占空比设定为0％来释放第三制动器，以在第二变速器的输出轴中建立自由状态（空档状态）。 当第一变速机构中的第二离合器的电磁阀的占空比被设定为0％时，第二制动器的电磁阀的占空比逐渐增加，从而从第二离合器向第二制动器 并且第一变速机构从第三变速比可操作地移动到对应于第一变速比的变速比。 然后，第三制动器在完成换档并且在单向离合器的机械接合之后再次接合。 因此，可以减少车辆转速的冲击。
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10.发明授权Speed change control apparatus and method for an automatic transmission in a vehicle 失效用于车辆中的自动变速器的变速控制装置和方法
公开(公告)号：US5445579A
公开(公告)日：1995-08-29
申请号：US105171
申请日：1993-08-12
申请人： Kenjiro Fujita , Katsutoshi Usuki
发明人： Kenjiro Fujita , Katsutoshi Usuki
CPC分类号： F16H61/061 , F16H2059/425 , F16H2059/467 , Y10T477/693636 , Y10T477/69387 , Y10T477/6939 , Y10T477/693964 , Y10T477/69398
摘要： A speed change control method and apparatus for a vehicular automatic transmission having a first-speed clutch for establishing a first speed and a second-speed clutch for establishing a second speed, includes subjection of at least a duty ratio Dr of a second-speed solenoid valve for supplying oil pressure to the second-speed clutch to feedback control, so that the first-speed clutch is engaged while disengaging the second-speed clutch. This thereby increases a turbine rotational speed Nt toward the first-speed synchronous rotational speed. Further, an upper limit value Dmax of the duty ratio Dr is set, and the duty ratio Dr is subject to feedback control within a resultant duty ratio range. This thereby prevents the duty ratio Dr from being set at an excessive value caused by a delay in the rise of the oil pressure. As a result, even if a depression of an accelerator pedal is suddenly increased during a downshifting process, an interlock problem can be prevented, thereby ensuring smooth speed change.
摘要翻译： 一种用于具有用于建立第一速度的第一速离合器和用于建立第二速度的二速离合器的车辆自动变速器的变速控制方法和装置，包括至少将二次电磁铁的占空比Dr 用于向二速离合器供给油压以进行反馈控制的阀，使得一档离合器在脱离第二速离合器的同时接合。 从而将涡轮转速Nt提高到第一速度同步转速。 此外，设定占空比Dr的上限值Dmax，并且在合成占空比范围内对占空比Dr进行反馈控制。 由此，能够将占空比Dr设定在由油压上升延迟引起的过大的值。 结果，即使在降档过程中加速踏板的下压突然增加，也可以防止互锁问题，从而确保平稳的速度变化。
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