公开(公告)号：US5647819A

公开(公告)日：1997-07-15

申请号：US481335

申请日：1995-08-17

申请人： Kenjiro Fujita ,  Katsutoshi Usuki ,  Tetsuya Tashiro

发明人： Kenjiro Fujita ,  Katsutoshi Usuki ,  Tetsuya Tashiro

IPC分类号： F16H59/38 ,  F16H59/46 ,  F16H61/04 ,  F16H61/08 ,  F16H61/70 ,  F16H61/06

CPC分类号： F16H61/0437 ,  F16H2059/385 ,  F16H2061/0444 ,  F16H2061/0448 ,  F16H59/46 ,  F16H61/08 ,  F16H61/702 ,  Y10T477/69367 ,  Y10T477/693742 ,  Y10T477/6939

摘要： A speed change control method for an automatic transmission is provided, which is capable of reducing a shift shock and a required shifting time period. A skip down-shift from a first shift position to a second shift position is effected by way of a third shift position which is not used in a normal shifting. If it is determined that a difference (N.sub.TM -N.sub.T) between the present turbine rotation speed N.sub.T and the synchronous rotation speed N.sub.TM for the third shift position becomes smaller than a threshold value .DELTA.N.sub.FM during the shifting from the first shift position to the third shift position, a control for releasing a friction engaging element 23, corresponding to a releasing side speed-changing element of the third shift position, is started prior to establishment of the third shift position, whereby a time period for establishing the third shift position is shortened, so that a shift shock and a required shifting time period are reduced.

摘要翻译： PCT No.PCT / JP94 / 01871 Sec。 371日期：1995年8月17日 102（e）日期1995年8月17日PCT 1994年11月7日PCT PCT。 公开号WO95 / 12774 日期1995年5月11日提供了一种能够减少换档冲击和所需的换档时间的自动变速器的变速控制方法。 通过在正常移位中不使用的第三移位位置来实现从第一换档位置到第二换档位置的向下跳跃。 如果确定当前的涡轮转速NT与第三档位的同步转速NTM之间的差（NTM-NT）在从第一档位移动到第三档位时变得小于阈值DELTA NFM 在建立第三变速位置之前，开始对应于第三档位的释放侧变速元件释放摩擦接合元件23的控制，由此缩短用于建立第三档位的时间段 ，从而减少换档冲击和所需的换档时间。

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

IPC分类号： F16H59/46 ,  F16H61/06 ,  F16H61/08 ,  B60K41/02

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。

公开(公告)号：US5445577A

公开(公告)日：1995-08-29

申请号：US45714

申请日：1993-04-14

申请人： Kenjiro Fujita ,  Katsutoshi Usuki ,  Katsuhiro Hatta

发明人： Kenjiro Fujita ,  Katsutoshi Usuki ,  Katsuhiro Hatta

IPC分类号： F16H59/38 ,  F16H61/00 ,  F16H61/02 ,  F16H61/06 ,  F16H61/08 ,  F16H59/48

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。

公开(公告)号：US5345843A

公开(公告)日：1994-09-13

申请号：US36274

申请日：1993-03-24

申请人： Kenjiro Fujita ,  Katsutoshi Usuki

发明人： Kenjiro Fujita ,  Katsutoshi Usuki

IPC分类号： F16H61/00 ,  F16H59/72 ,  F16H59/78 ,  F16H61/02 ,  F16H61/04 ,  F16H61/10 ,  B60K41/18

CPC分类号： F16H59/72 ,  F16H61/0213 ,  F16H2061/0096 ,  F16H59/78 ,  Y10T477/653

摘要： A speed change control method and apparatus for an automotive automatic transmission includes a controller, which selects a shift pattern in which shift lines are set as a function of both throttle opening and vehicle speed when the temperature of operating oil of the transmission is higher than a predetermined temperature, and selects a shift pattern in which shift lines are set as a sole function of the vehicle speed when the operating oil temperature is lower than or equal to the predetermined temperature. The controller refers to the selected shift pattern, and determines a gear to be established, in accordance with a corresponding one or both of the vehicle speed and the throttle opening detected by sensors, to thereby reduce the frequency in occurrence of shift shock when the operating oil temperature is low.

摘要翻译： 一种用于汽车自动变速器的变速控制方法和装置，包括一个控制器，当变速器的工作油的温度高于一个时，选择一个换档模式，其中换挡线被设定为节气门开度和车速两者的函数 并且当工作油温低于或等于预定温度时，选择将换档线设定为车速的唯一功能的换档模式。 控制器参考所选择的换档模式，并且根据由传感器检测到的车速和节气门开度中的相应的一个或两个来确定要建立的档位，从而减少当操作时发生换档冲击的频率 油温低。

公开(公告)号：US5730683A

公开(公告)日：1998-03-24

申请号：US677784

申请日：1996-07-10

申请人： Katsutoshi Usuki ,  Kenjiro Fujita ,  Takeo Hiramatsu

发明人： Katsutoshi Usuki ,  Kenjiro Fujita ,  Takeo Hiramatsu

IPC分类号： F16H59/22 ,  F16H59/40 ,  F16H59/42 ,  F16H61/02 ,  F16H61/04 ,  F16H61/08

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。

公开(公告)号：US5435796A

公开(公告)日：1995-07-25

申请号：US258711

申请日：1994-06-13

申请人： Kenjiro Fujita ,  Katsutoshi Usuki ,  Katsuhiro Hatta

发明人： Kenjiro Fujita ,  Katsutoshi Usuki ,  Katsuhiro Hatta

IPC分类号： F16H59/38 ,  F16H61/00 ,  F16H61/02 ,  F16H61/06 ,  F16H61/08

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。

公开(公告)号：US5882276A

公开(公告)日：1999-03-16

申请号：US776932

申请日：1997-02-11

申请人： Katsutoshi Usuki ,  Kenjiro Fujita ,  Katsuhiro Hatta

发明人： Katsutoshi Usuki ,  Kenjiro Fujita ,  Katsuhiro Hatta

IPC分类号： F16H61/06 ,  F16H59/38 ,  F16H61/00 ,  F16H61/04 ,  F16H61/08 ,  F16H59/48

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）。

公开(公告)号：US5743826A

公开(公告)日：1998-04-28

申请号：US588334

申请日：1996-01-18

申请人： Katsutoshi Usuki ,  Kenjiro Fujita ,  Katsuhiro Hatta

发明人： Katsutoshi Usuki ,  Kenjiro Fujita ,  Katsuhiro Hatta

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。

公开(公告)号：US5624351A

公开(公告)日：1997-04-29

申请号：US454178

申请日：1995-06-22

申请人： Kenjiro Fujita ,  Katsuhiro Hatta ,  Katsutoshi Usuki

发明人： Kenjiro Fujita ,  Katsuhiro Hatta ,  Katsutoshi Usuki

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）。

公开(公告)号：US5370016A

公开(公告)日：1994-12-06

申请号：US044488

申请日：1993-04-09

申请人： Kenjiro Fujita ,  Katsutoshi Usuki ,  Katsuhiro Hatta ,  Takeo Hiramatsu

发明人： Kenjiro Fujita ,  Katsutoshi Usuki ,  Katsuhiro Hatta ,  Takeo Hiramatsu

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）'。