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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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2.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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4.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：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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8.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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9.发明授权
公开(公告)号：US5301572A
公开(公告)日：1994-04-12
申请号：US16192
申请日：1993-02-11
IPC分类号： F16H59/44 , F16H59/48 , F16H59/70 , F16H59/72 , F16H61/00 , F16H61/02 , F16H61/04 , F16H61/06 , F16H61/08
CPC分类号： F16H61/061 , F16H2061/0087 , F16H2061/0255 , F16H2061/0485 , F16H2061/0488 , F16H2312/02 , F16H59/44 , F16H59/48 , F16H59/70 , F16H59/72 , F16H61/0021 , F16H61/08
摘要： A shift control method for an automatic transmission of an automotive vehicle comprises a preliminary stage which is executed for eliminating the play in mechanism of a low/reverse brake of the automatic transmission at a shifting, particularly at a shifting of the transmission from the neutral position to a running position when the vehicle is at rest, and an engagement stage which is executed subsequently to the preliminary stage for operating the brake substantially. In the preliminary and engagement stages, the fluid pressure supplied to the brake is controlled in accordance with the precontrol pattern and the main control pattern, respectively. The shift control method further comprises a step of correcting a factor defining the precontrol pattern such that the time required from the start of the engagement stage to the start of a substantial shifting of the automatic transmission coincides with an ideal reference time, and a step of correcting the initial value of the fluid pressure supplied to the engaging element at the start of the main control pattern such that the rate of change in the rotational speed of the input shaft of the transmission during the period from the start of the substantial shifting to the end of same coincides with an ideal reference rate.
摘要翻译： 用于机动车辆的自动变速器的变速控制方法包括：执行用于消除在变速时自动变速器的低/反制动的机构的起动的预备阶段，特别是在变速器从中立位置 在车辆静止时到达行驶位置，以及接合阶段，其基本上在用于操作制动器的预备阶段之后执行。 在预备和接合阶段，分别根据预控模式和主控制模式来控制供给制动器的流体压力。 变速控制方法还包括校正限定预控模式的因子的步骤，使得从接合阶段开始到自动变速器的实际变速开始所需的时间与理想的参考时间一致，并且步骤 校正在主控制模式开始时供给到接合元件的流体压力的初始值，使得在从实质变速开始到期间的变速器的输入轴的转速的变化率 相同的结尾与理想的参考速率一致。
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公开(公告)号：US5235875A
公开(公告)日：1993-08-17
申请号：US834832
申请日：1992-02-13
CPC分类号： F16H61/0213 , B60W2050/0057 , F16H2061/0081 , F16H2061/0096 , F16H59/141 , F16H59/24 , F16H59/44 , Y10S706/90 , Y10T477/693625
摘要： A gear shift control system according to this invention includes a throttle opening sensor, a vehicle speed sensor and a controller for delivering a shift command signal to an automatic transmission. The controller is previously stored with shift lines, which divide the respective regions of gear-shift stages, on the basis of the throttle opening and the vehicle speed. The controller delivers the shift command signal to the transmission when any of the shift lines is crossed by a shift point which is defined by the throttle opening and the vehicle speed. Taking account of the changing rate of the throttle opening, the past throttle opening, and the acceleration of the vehicle, however, the controller calculates a decision value which is indicative of the running state of the vehicle, on the basis of the fuzzy theory. When the decision value exceeds a predetermined value, the controller corrects the shift lines depending on the running state.
摘要翻译： 根据本发明的变速控制系统包括节气门开度传感器，车速传感器和用于将变速指令信号传送到自动变速器的控制器。 控制器预先存储有基于节气门开度和车辆速度来划分变速级的各个区域的换档线。 当任何换档线被由节气门开度和车速限定的换档点越过时，控制器将变速指令信号传递到变速器。 考虑到节气门开度的变化率，过去的节气门开度和车辆的加速度，然而，控制器基于模糊理论来计算表示车辆行驶状态的判定值。 当判定值超过预定值时，控制器根据运行状态来校正换档线。
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