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公开(公告)号：US06259983B1
公开(公告)日：2001-07-10
申请号：US09119237
申请日：1998-07-21
IPC分类号： F16H900
CPC分类号： F16H61/0437 , F16H61/08 , F16H2059/425 , F16H2059/6807 , F16H2061/0087 , Y10T477/623
摘要： A learning controller makes learning correction based on a time tST between start of a shift control routine and detection of start of a change in rotational speed of the transmission input shaft and further based on the amount of rotational speed change &ohgr;S′ at the detected start of the rotational speed change. When the time tST is longer than a basic time and when the rotational change amount &ohgr;S′ is too large, it is determined that a servo piston has not been sufficiently advanced and the shift control is corrected so that the time tST is lengthened. When the time tST to the detected start of the rotational speed change &ohgr;S′ is too small, it is determined that, while the piston has been advanced properly, the target engagement pressure PTA in torque phase control is too low because of a miscalculation, and the shift control is corrected so that the target engagement pressure is raised.
摘要翻译： 学习控制器基于变速控制程序开始之间的时间tST和变速器输入轴的转速开始的检测开始之间的时间tST进一步进行学习校正，并且还基于检测到的开始时的转速变化量ω 转速变化。 当时间tST长于基本时间，并且当旋转变化量ωs'太大时，确定伺服活塞未被充分提前，并且校正换档控制，使得时间tST延长。 当检测到的转速ω'S'的开始的时间tST太小时，确定在活塞已经正确前进的情况下，由于计算错误，转矩相位控制中的目标接合压力PTA太低，并且 校正换档控制，使得目标接合压力升高。
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公开(公告)号：US06068576A
公开(公告)日：2000-05-30
申请号：US145888
申请日：1998-08-02
申请人： Hiroshi Tsutsui , Takao Taniguchi , Kazumasa Tsukamoto , Masaaki Nishida , Yoshihisa Yamamoto , Masao Saito , Takayuki Kubo , Akitomo Suzuki
发明人： Hiroshi Tsutsui , Takao Taniguchi , Kazumasa Tsukamoto , Masaaki Nishida , Yoshihisa Yamamoto , Masao Saito , Takayuki Kubo , Akitomo Suzuki
CPC分类号： F16H61/061 , F16H2059/144 , F16H2059/405 , F16H2059/425 , F16H2059/6807 , F16H2061/0078 , F16H2061/044 , Y10T477/693636 , Y10T477/69373
摘要： When a vehicle driving state of an automatic transmission is changed to a power-off state from a power-on state during a down shift involving the disengagement of one friction element and the engagement of another friction element, a disengagement side pressure PA is reduced rapidly by a feedback control based on the change in gear ratio because of a reduction of an input torque. The disengagement side pressure control is unable to complete change of the gear ratio to complete the down shift. When the disengagement side pressure is reduced to a value less than a return spring load pressure PG or when the gear ratio change has not achieved a basic value in a predetermined time, the down shift control is changed from primary control by the disengagement side pressure control to primary control by an engagement side control so that the gear ratio change is completed by control of the engagement side pressure.
摘要翻译： 当自动变速器的车辆行驶状态在涉及一个摩擦元件的脱离和下一个摩擦元件的接合以及与另一个摩擦元件的接合的下降换档期间从通电状态变为断电状态时，分离侧压力PA迅速减小 通过由于输入转矩的降低而基于变速比的变化的反馈控制。 脱离侧压力控制不能完成变速比的变化以完成向下换档。 当分离侧压力降低到小于复位弹簧负载压力PG的值时，或者当齿轮比变化在预定时间内未达到基本值时，下降控制从主控制通过分离侧压力控制 通过接合侧控制进行初级控制，从而通过控制接合侧压力来完成齿轮比变化。
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23.发明授权
公开(公告)号：US5908370A
公开(公告)日：1999-06-01
申请号：US840711
申请日：1997-04-25
申请人： Takayuki Kubo , Masaaki Nishida , Yoshihisa Yamamoto , Akitomo Suzuki , Hiroshi Tsutsui , Kazumasa Tsukamoto
发明人： Takayuki Kubo , Masaaki Nishida , Yoshihisa Yamamoto , Akitomo Suzuki , Hiroshi Tsutsui , Kazumasa Tsukamoto
CPC分类号： F16H61/061 , F16H2061/0492 , F16H2061/0496 , F16H59/14 , F16H59/24 , F16H59/36 , F16H59/44 , Y10T477/6937 , Y10T477/69373 , Y10T477/6939
摘要： In power-on, high-vehicle-speed and high-torque conditions, a control unit sets a torque allotment ratio such that a main clutch bears all the torque. Thereby, the input shaft rotational speed is increased by controlling solely the main clutch releasing pressure. In power-on and low-torque or low-vehicle-speed conditions, the control unit sets a torque allotment ratio for the main clutch torque and the sub-clutch torque to 1:1. Thereby, control of the main clutch releasing pressure and control of the sub-clutch engaging pressure simultaneously proceed in parallel to produce a change in the input shaft rotational speed without a time lag. The hydraulic control apparatus thus conducts proper downshift control for a shift involving clutch engagement changeover, under all vehicle running conditions, without need for additional control logic.
摘要翻译： 在上电，高车速和高扭矩条件下，控制单元设定扭矩分配比，使得主离合器承受所有扭矩。 因此，仅通过控制主离合器释放压力来增加输入轴转速。 在上电和低扭矩或低车速条件下，控制单元将主离合器扭矩和副离合器扭矩的转矩分配比设置为1：1。 因此，主离合器释放压力的控制和副离合器接合压力的控制同时并行进行，从而在输入轴转速没有时间延迟的情况下产生变化。 因此，在所有车辆运行条件下，液压控制装置对于涉及离合器接合切换的换档进行适当的降档控制，而不需要额外的控制逻辑。
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公开(公告)号：US5902213A
公开(公告)日：1999-05-11
申请号：US995518
申请日：1997-12-22
CPC分类号： F16H61/061 , F16H59/24 , F16H59/36 , F16H59/40 , F16H59/42 , Y10T477/69363 , Y10T477/69387
摘要： In an automatic transmission including a gear unit with a second brake connected in series with a one-way clutch and a first brake that is not connected with a one-way clutch, the second brake and the first brake are controlled by linear solenoid valves individually. A vehicle load is detected, and when the vehicle is in a high load state, at first the second brake performs an engagement control, then after input rotation to the gear unit is synchronized with output rotation of the gear unit, the first brake performs an engagement control. When the vehicle is in a low load state, at first the first brake performs an engagement control, then after input rotation to the gear unit is synchronized with output rotation of the gear unit, the second brake performs an engagement control.
摘要翻译： 在包括具有与单向离合器串联的第二制动器的减速器和不与单向离合器连接的第一制动器的自动变速器中，第二制动器和第一制动器分别由线性电磁阀控制 。 检测到车辆负载，当车辆处于高负载状态时，首先第二制动器执行接合控制，然后在齿轮单元的输入转动与减速器的输出转动同步之后，第一制动器执行 订婚控制。 当车辆处于低负载状态时，首先第一制动器执行接合控制，然后在齿轮单元的输入转动与减速器的输出转动同步之后，第二制动器进行接合控制。
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25.发明授权Engine torque control during multiple speed changes of an automatic transmission 有权自动变速器多速变速时的发动机转矩控制公开(公告)号：US06254508B1
公开(公告)日：2001-07-03
申请号：US09425190
申请日：1999-10-25
IPC分类号： B60K4104
CPC分类号： B60W10/06 , B60W10/04 , B60W10/11 , B60W10/115 , B60W30/18 , B60W30/1819 , F16H61/061 , F16H63/502 , F16H2059/425 , F16H2059/6807 , F16H2306/24 , Y10T477/677
摘要： In a multiple speed-change operation for switching between an up-shift operation and a down-shift operation, engine torque control is adapted to an actual change in speed-change state, whereby an abrupt change in rotational speed of the input shaft is prevented. One embodiment relates to a speed-change operation from the second speed to the third speed, wherein the engagement-side hydraulic pressure B4 rises and the release-side hydraulic pressure B5 drops, the rotational speed NT of the input shaft changes from a second speed state toward a third speed state and the engine torque TE is reduced by a predetermined amount TCU. If a command to perform a speed-change operation from the third speed to the second speed is issued during the aforementioned speed-change operation from the second speed to the third speed, control of the hydraulic pressures is switched to the speed-change operation from the third speed to the second speed. If it is detected because of the hydraulic pressure control that the direction of the change &ohgr; in rotational speed of the input shaft has changed toward the second speed, it is determined that the speed-change operation has actually started. Then, the torque reduction operation is suspended, and the torque is gradually restored.
摘要翻译： 在上变速操作和换档操作之间切换的多次变速操作中，发动机扭矩控制适应于变速状态的实际变化，从而防止输入轴的转速急剧变化 。 一个实施例涉及从第二速度到第三速度的变速操作，其中接合侧液压B4上升，释放侧液压B5下降，输入轴的转速NT从第二速度 状态朝向第三速度状态，并且发动机转矩TE减小预定量TCU。 如果在从第二速度到第三速度的上述变速操作期间发出执行从第三速度到第二速度的变速操作的命令，则将液压控制切换到速度变化操作 第三速到第二速。 如果由于液压控制检测到输入轴的转速的变化方向Ω的方向朝向第二速度变化，则确定变速操作已经实际开始。 然后，停止转矩降低操作，并且扭矩逐渐恢复。
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公开(公告)号：US5931761A
公开(公告)日：1999-08-03
申请号：US6899
申请日：1998-01-14
CPC分类号： F16H61/061 , F16H2059/186 , F16H2061/044 , F16H61/21 , Y10T477/69 , Y10T477/6939 , Y10T477/69398
摘要： In a driven state, a hydraulic pressure of disengagement side is set at a stroke pressure, a one-way clutch in an operating state is over-run, an engine rotation speed is in an idle state, and an automatic transmission is in a neutral state. In a drive state, the hydraulic pressure of disengagement side is controlled so that a difference between an engine rotation speed and an input rotation speed reaches a difference between the both rotation speeds at a start of the shift control. In a state of a synchronized rotation after the shift, the hydraulic pressure of disengagement side is controlled so that the input rotation reaches the synchronized rotation.
摘要翻译： 在从动状态下，分离侧的液压被设定为冲程压力，工作状态下的单向离合器过度运转，发动机转速处于怠速状态，自动变速器处于中立状态 州。 在驱动状态下，控制分离侧的液压，使得在变速控制开始时，发动机转速与输入转速之间的差达到两个转速之间的差值。 在变速后的同步旋转的状态下，控制分离侧的液压，使得输入旋转达到同步旋转。
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27.发明授权
公开(公告)号：US5924958A
公开(公告)日：1999-07-20
申请号：US839824
申请日：1997-04-18
CPC分类号： F16H61/061 , F16H61/0206 , Y10T477/69373 , Y10T477/693738 , Y10T477/693754 , Y10T477/69383
摘要： If a shift to the 3rd speed is decided during the 5th-4th speed shift, in which the hydraulic servo for a second clutch is released by pressure regulation control, a changeover valve is switched by a solenoid valve so that the fluid pressure P.sub.C2 from the pressure regulating valve is conducted to a third clutch hydraulic servo. Thereby, the third clutch hydraulic servo pressure P.sub.C3 stands by at a predetermined engaging pressure P.sub.H and, at the same time, the servo-start of a fourth brake fluid pressure P.sub.B4 is performed by another pressure regulating valve. Meanwhile, the fluid pressure P.sub.C2 is released by an accumulator. After the servo-start ends and the 4th speed is established, the 4-3 speed shift control is performed, thus preventing shift shock and reducing shift duration.
摘要翻译： 在通过压力调节控制释放第二离合器的液压伺服系统的第五至第四速度变速期间，如果转向第三速度，则转换阀由电磁阀切换，使得来自 压力调节阀被传导到第三离合器液压伺服系统。 因此，第三离合器液压伺服压力PC3以预定的接合压力PH等待，同时第四制动液压力PB4的伺服启动由另一压力调节阀执行。 同时，液压PC2由蓄能器释放。 伺服启动结束，第4速度建立后，执行4-3变速控制，防止换档冲击，减少换档持续时间。
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公开(公告)号：US06220402B1
公开(公告)日：2001-04-24
申请号：US09261489
申请日：1999-03-03
申请人： Hiroshi Tsutsui , Kazumasa Tsukamoto , Masaaki Nishida , Yoshihisa Yamamoto , Akitomo Suzuki , Akihito Iwata , Akira Isogai
发明人： Hiroshi Tsutsui , Kazumasa Tsukamoto , Masaaki Nishida , Yoshihisa Yamamoto , Akitomo Suzuki , Akihito Iwata , Akira Isogai
IPC分类号： F16D5100
CPC分类号： F16H63/3003
摘要： A hydraulic servo includes a cylinder, a piston and a rod. The piston divides the interior space of the cylinder between a closed hydraulic chamber and a back chamber which has an opening to the interior space of an automatic transmission. The rod is slidably mounted in the piston for relative movement through a predetermined distance. A frictional engagement element is engaged by the rod which is extended from one end of the cylinder by applying a hydraulic pressure to the hydraulic chamber. A passage is provided between the piston and the rod which is opened or closed by the relative movement between the piston and rod so that the hydraulic chamber and the back chamber are connected or disconnected. A valving arrangement (“closer”) closes the passage at the end of the return stroke of the piston toward the hydraulic chamber.
摘要翻译： 液压伺服机构包括气缸，活塞和杆。 活塞将气缸的内部空间划分在具有到自动变速器的内部空间的开口的闭合的液压室和后室之间。 杆可滑动地安装在活塞中以相对运动经过预定距离。 摩擦接合元件由杆接合，杆通过向液压室施加液压而从气缸的一端延伸。 在活塞和杆之间设有通过活塞和杆之间的相对运动打开或关闭的通道，使得液压室和后室连接或断开。 阀门装置（“靠近”）在活塞的返回行程结束时朝向液压室关闭通道。
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公开(公告)号：US06128565A
公开(公告)日：2000-10-03
申请号：US145885
申请日：1998-09-02
申请人： Hiroshi Tsutsui , Takao Taniguchi , Kazumasa Tsukamoto , Masaaki Nishida , Yoshihisa Yamamoto , Masao Saito
发明人： Hiroshi Tsutsui , Takao Taniguchi , Kazumasa Tsukamoto , Masaaki Nishida , Yoshihisa Yamamoto , Masao Saito
CPC分类号： F16H61/061 , F16H2059/147 , F16H2061/0477 , F16H59/14 , Y10T477/60 , Y10T477/624 , Y10T477/675 , Y10T477/679 , Y10T477/688 , Y10T477/6895 , Y10T477/6939
摘要： In a disengagement side control, in a power on state, a disengagement side pressure P.sub.W is output, P.sub.W being set higher than a base pressure dependent on input torque, and a disengagement side frictional engagement element is engaged and maintained. In a power off state, a disengagement side pressure lower than the base pressure is output, and the disengagement side frictional engagement element slips. In the disengagement side control, when the vehicle driving state is changed from the power off state to the power on state, the disengagement side pressure P.sub.W is changed from that for a slip state to that for a maintain state.
摘要翻译： 在脱离侧控制中，在通电状态下，输出脱离侧压力PW，PW被设定为高于基于输入转矩的基础压力，并且脱离侧摩擦接合元件被接合并保持。 在断电状态下，输出低于基础压力的脱离侧压力，并且分离侧摩擦接合元件滑动。 在分离侧控制中，当车辆行驶状态从断电状态变为接通状态时，脱离侧压力PW从滑动状态变为保持状态。
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公开(公告)号：US5941795A
公开(公告)日：1999-08-24
申请号：US833389
申请日：1997-04-04
CPC分类号： F16H61/061 , F16H2059/6807 , F16H2306/24 , Y10T477/6937 , Y10T477/693754 , Y10T477/69383 , Y10T477/6939
摘要： The present invention prevents shift shock and reduces time required to execute the complete speed change operation in the case where a second speed change is commanded while a first speed change operation is still in progress. If a down-shift to a first speed stage is commanded during an up-shift operation from the first to the second speed, the hydraulic pressure in the second speed change operation is controlled in accordance with the state of the first speed change operation at the time of generation of the command for the second speed change. For example, if a down-shift to the first speed stage is commanded during the torque phase of an up-shift operation from first to second speeds, namely, before change in the rotational speed of the input shaft has started, only completion control of the down-shift operation is executed. On the other hand, if the down-shift to the first speed stage is commanded during the inertia phase of the up-shift operation, namely, after the speed change has been started, hydraulic control of the down-shift is started with the initial speed change control.
摘要翻译： 本发明在第一变速操作仍在进行中，在第二变速指令的情况下，能够防止变速冲击，并减少执行完全变速操作所需的时间。 如果在从第一速度到第二速度的升档操作期间指令到第一速度档位的下降，则根据第二变速操作中的第一变速操作的状态来控制第二变速操作中的液压 生成第二速变化命令的时间。 例如，如果在从第一速度到第二速度的升档操作的扭矩阶段期间，即在输入轴的转速的变化已经开始之前指令到第一速度级的下降，则仅完成控制 执行降档操作。 另一方面，如果在升档操作的惯性阶段（即在变速开始之后）指令到第一速度级的下降，则下降的液压控制开始于初始 变速控制。
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