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公开(公告)号：US5813943A
公开(公告)日：1998-09-29
申请号：US644890
申请日：1996-05-10
IPC分类号： F16H59/24 , F16H59/36 , F16H59/38 , F16H59/44 , F16H59/50 , F16H59/54 , F16H61/00 , F16H61/06 , F16H61/20
CPC分类号： F16H61/20 , B60W2510/0652 , B60W30/18118 , F16H2059/385 , F16H2061/205 , F16H2061/207 , F16H2312/022 , F16H59/24 , F16H59/36 , F16H59/44 , F16H59/54 , F16H61/0059 , Y10T477/638 , Y10T477/688 , Y10T477/69387 , Y10T477/6939
摘要： A control system for an automatic transmission includes: a clutch adapted to be applied when a forward running range is selected, to transmit the rotation of an engine to the transmission mechanism of a speed change unit and a hydraulic servo for applying/releasing the clutch. A control unit controls oil pressure fed to the hydraulic servo and includes: an application starting pressure detector for detecting application starting pressure at the instant when the application of the clutch is started; an initial application pressure setter for setting an initial application pressure on the basis of the detected application starting pressure; and an oil pressure regulator for adjusting the oil pressure fed to the hydraulic servo, when a change is made to a forward running range, and then gradually raising that oil pressure. The application starting pressure detected by the application starting pressure detector is the value at which the application of the clutch is actually started, so that the initial application pressure can be properly set even if the actual oil pressure fed to the hydraulic servo regardless of the urging force of a return spring or variation in manufacture of the hydraulic control system.
摘要翻译： 一种用于自动变速器的控制系统包括：适于在选择前进行驶范围时施加的离合器，以将发动机的旋转传递到变速单元的变速机构和用于施加/释放离合器的液压伺服机构。 控制单元控制供给到液压伺服机构的油压，包括：起动压力检测器，用于在启动离合器的施加时检测施加起动压力; 初始施加压力设定器，用于基于检测到的施加起始压力来设定初始施加压力; 以及油压调节器，用于当向前进行范围变化时，调节供给到液压伺服机构的油压，然后逐渐升高油压。 由施加起动压力检测器检测到的施加起动压力是实际启动离合器的应用的值，即使施加到液压伺服器的实际油压，也可以适当地设定初始施加压力，而不管施加压力 复位弹簧的力或液压控制系统的制造变化。
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公开(公告)号：US5547436A
公开(公告)日：1996-08-20
申请号：US428551
申请日：1995-04-25
申请人： Masahiro Hayabuchi , Masaaki Nishida , Yoshihisa Yamamoto , Kazuhiro Mikami , Hiroshi Tsutsui , Akihito Iwata
发明人： Masahiro Hayabuchi , Masaaki Nishida , Yoshihisa Yamamoto , Kazuhiro Mikami , Hiroshi Tsutsui , Akihito Iwata
IPC分类号： F16H61/00 , F16H3/66 , F16H59/16 , F16H59/22 , F16H59/24 , F16H59/36 , F16H59/44 , F16H59/54 , F16H61/02 , F16H61/04 , F16H61/10 , F16H61/20 , F16H63/40 , F16H59/04 , F16H59/14
CPC分类号： F16H61/20 , B60W30/18118 , F16H2061/205 , F16H2061/207 , F16H2312/02 , F16H3/66 , F16H59/16 , F16H59/22 , F16H59/24 , F16H59/36 , F16H59/44 , F16H59/54 , F16H61/0021 , Y10T477/681
摘要： A control system for an automatic transmission in a vehicle powertrain including an engine and a fluid coupling for transmitting the rotation of an engine to the transmission, the transmission having a clutch which is applied responsive to selection of a forward running range and a hydraulic servo for applying the clutch responsive to an oil pressure. The control system includes a control unit for controlling the oil pressure to the hydraulic servo; an input torque detector for detecting the input torque to be inputted to the transmission; and a specific state detector for detecting satisfaction of a set of specific starting conditions including: (1) that the forward running range has been selected, (2) that the vehicle is stopped and (3) that the engine is in an idling state. The control unit sets the oil pressure to the hydraulic servo to correspond to the input torque at the instant of detection of satisfaction the specific starting conditions, and includes: a first pressure-reducer for abruptly reducing the oil pressure of the hydraulic servo to a set oil pressure immediately before the release of the clutch is started; and a second pressure-reducer for gradually reducing the oil pressure of the hydraulic servo, which has been reduced to the set oil pressure by the first pressure-reducer.
摘要翻译： 一种用于车辆动力系统中的自动变速器的控制系统，包括发动机和用于将发动机的旋转传递到变速器的流体联轴器，所述变速器具有响应于向前行驶范围的选择而施加的离合器和用于 响应于油压而施加离合器。 控制系统包括用于控制液压伺服机构的油压的控制单元; 输入转矩检测器，用于检测要输入到变速器的输入转矩; 以及用于检测特定起动条件的满足的特定状态检测器，包括：（1）已经选择了前进行驶范围，（2）车辆停止，（3）发动机处于空转状态。 控制单元将液压伺服系统的油压设定为与特定起动条件满足时的检测时刻的输入转矩对应，包括：将液压伺服机构的油压突然降低到一组的第一减压器 开始释放离合器之前的油压; 以及用于逐渐降低由第一减压器降低到设定油压的液压伺服机构的油压的第二减压器。
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13.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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15.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：US5630772A
公开(公告)日：1997-05-20
申请号：US428552
申请日：1995-04-25
申请人： Kazumasa Tsukamoto , Masahiro Hayabuchi , Masaaki Nishida , Yoshihisa Yamamoto , Muneo Kusafuka , Hiroshi Tsutsui , Akihito Iwata
发明人： Kazumasa Tsukamoto , Masahiro Hayabuchi , Masaaki Nishida , Yoshihisa Yamamoto , Muneo Kusafuka , Hiroshi Tsutsui , Akihito Iwata
CPC分类号： F16H61/20 , B60W30/18118 , F16H2061/205 , F16H2061/207 , F16H2312/02 , F16H3/66 , F16H59/22 , F16H59/54 , F16H59/66 , Y10T477/641 , Y10T477/646 , Y10T477/648 , Y10T477/84
摘要： A system and method for controlling an automatic transmission in a vehicle drive train including an engine, the automatic transmission and a fluid coupling for transmitting the rotation of the engine to the transmission. The transmission includes a clutch applied when a forward running range is selected; a second one-way clutch which is applied, when the first clutch is applied, to establish a forward 1st speed; and a brake for locking the one-way clutch, when applied, to block the reverse rotation of the output shaft of the transmission. A first hydraulic servo receives a first oil pressure for applying the first clutch and a second hydraulic servo receives a second oil pressure for applying the brake. When a forward running range is selected, with the vehicle stopped, the engine idling and a foot brake engaged, the oil pressure of the first hydraulic servo is lowered from the oil pressure at the 1st speed whereas the oil pressure of the second hydraulic servo is raised to a modulated pressure. The modulated pressure is set to generate, against the reverse force on the vehicle facing up an incline, a resistance corresponding to the forward driving force generated when the engine is idling in 1st speed.
摘要翻译： 一种用于控制包括发动机，自动变速器和用于将发动机的旋转传递到变速器的流体联动器的车辆传动系中的自动变速器的系统和方法。 变速器包括当选择正向行驶范围时施加的离合器; 当施加第一离合器时，施加第二单向离合器以建立前进1速度; 以及用于在施加时用于锁定单向离合器的制动器，以阻止变速器的输出轴的反向旋转。 第一液压伺服机构接收用于施加第一离合器的第一油压，而第二液压伺服机构接收用于施加制动器的第二油压。 当选择正向行驶范围时，当车辆停止时，发动机怠速和脚踏制动器接合，第一液压伺服机构的油压从第一速度的油压降低，而第二液压伺服机构的油压为 提高到调制压力。 调制压力被设定为产生对着车辆朝向斜坡的反向力，该阻力对应于当发动机以第一速度空转时产生的前进驱动力。
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公开(公告)号：US5542887A
公开(公告)日：1996-08-06
申请号：US428968
申请日：1995-04-25
申请人： Kazumasa Tsukamoto , Masahiro Hayabuchi , Masaaki Nishida , Yoshihisa Yamamoto , Muneo Kusafuka , Kazuhiro Mikami , Hiroshi Tsutsui , Akihito Iwata
发明人： Kazumasa Tsukamoto , Masahiro Hayabuchi , Masaaki Nishida , Yoshihisa Yamamoto , Muneo Kusafuka , Kazuhiro Mikami , Hiroshi Tsutsui , Akihito Iwata
CPC分类号： F16H61/20 , F16H2059/385 , F16H2059/467 , F16H2061/207 , F16H2312/02 , F16H3/66 , F16H59/22 , F16H59/42
摘要： An automatic transmission control system providing a neutral control state in which there is no slipping engagement of a first clutch which is engaged upon selection of a forward range and, as a result, the vehicle is not subjected to idling vibration. The fuel consumption reducing effect of the neutral control state is maintained and there is no heating and consequent deterioration of the friction material of the clutch. The control system includes a hydraulic servo for operation of the clutch, an input side speed sensor for detecting the input side speed of a fluid power coupling device connecting the transmission to the output of an engine, an output side speed sensor for detecting the output side speed of the fluid power coupling device, and a controller. The controller includes differential speed calculator, differential speed change detector, a pressure increasing device for increasing the hydraulic pressure of the hydraulic servo by a set pressure when the differential speed has not changed, and a pressure reducing device for reducing the hydraulic pressure of the hydraulic servo by a set pressure when the differential speed has changed.
摘要翻译： 一种自动变速器控制系统，其提供空档控制状态，其中在选择前进档位时接合的第一离合器没有滑动接合，结果，车辆不受到空转振动。 保持中性控制状态的燃料消耗降低效果，并且不会导致离合器的摩擦材料的加热和随之而来的劣化。 控制系统包括用于操作离合器的液压伺服机构，用于检测将变速器与发动机的输出连接的流体动力联接装置的输入侧速度的输入侧速度传感器，检测输出侧的输出侧速度传感器 流体动力耦合装置的速度和控制器。 控制器包括差速器计算器，差速变速检测器，用于当差速没有变化时将设定压力提高液压伺服机构的液压的增压装置，以及用于降低液压油压的减压装置 当差速变化时，通过设定压力伺服。
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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：US6139471A
公开(公告)日：2000-10-31
申请号：US706410
申请日：1996-08-30
CPC分类号： F16H61/061 , B60W30/18118 , F16H2059/385 , F16H2059/425 , F16H2061/0087 , F16H2061/0258 , F16H2061/0488 , F16H2061/205 , F16H2061/207 , F16H2200/0043 , F16H2200/2007 , F16H2200/2023 , F16H61/20 , F16H61/686 , Y10T477/69387 , Y10T477/6939 , Y10T477/75
摘要： A control system for an automatic transmission includes a fluid transmission unit connected to an engine; a clutch; a hydraulic servo; output RPM detector for detecting the output RPM of the fluid transmission unit; oil pressure generator for generating the oil pressure fed to the hydraulic servo; and a control unit. The control unit includes a booster for raising the oil pressure according to preset characteristics; change rate detector for detecting the RPM change rate of the output RPM in a preset range at the application of the clutch; and a corrector for correcting the preset characteristics by comparing the detected RPM change rate and a reference RPM change rate. The change rate detector detects the RPM change rate only when the output RPM at the time of starting the engagement of the clutch is higher by a preset value than the maximum of the output RPM in the preset range.
摘要翻译： 用于自动变速器的控制系统包括连接到发动机的流体传动单元; 离合器 液压伺服; 输出RPM检测器，用于检测流体传输单元的输出RPM; 用于产生供给液压伺服机构的油压的油压发生器; 和控制单元。 控制单元包括用于根据预设特性提高油压的助力器; 变速率检测器，用于在施加离合器时检测在预设范围内的输出RPM的RPM变化率; 以及校正器，用于通过比较检测到的RPM变化率和参考RPM变化率来校正预设特性。 变速率检测器仅在离合器开始接合时的输出RPM高于预设范围内的输出RPM的最大值的预设值时检测RPM变化率。
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公开(公告)号：US5911646A
公开(公告)日：1999-06-15
申请号：US774529
申请日：1996-12-30
申请人： Hiroshi Tsutsui , Kazumasa Tsukamoto , Masahiro Hayabuchi , Masaaki Nishida , Yoshihisa Yamamoto , Akitomo Suzuki
发明人： Hiroshi Tsutsui , Kazumasa Tsukamoto , Masahiro Hayabuchi , Masaaki Nishida , Yoshihisa Yamamoto , Akitomo Suzuki
CPC分类号： F16H61/20 , B60T7/122 , B60W2550/142 , B60W30/18118 , F16H2059/663 , F16H2061/205 , F16H2061/207 , F16H3/66 , Y10T477/646 , Y10T477/681
摘要： When a vehicle is halted with the transmission in a forward drive range, an input clutch is disengaged to enhance the fuel efficiency and, at the same times a hill-hold brake is engaged to prevent the vehicle from rolling backward on a steep up-slope. At that time, the hydraulic pressure P.sub.C-1 of the input clutch C1 is gradually reduced by .DELTA.P.sub.CIR (P.sub.C-1 =P.sub.C-1 -.DELTA.P.sub.CIR) while the hydraulic pressure P.sub.B-1 of the hill-hold brake B1 is increased gradually so as to satisfy an equation P.sub.B-1 =K1+K2 X e where .DELTA.P.sub.cir is a change in hydraulic pressure which is required for gradually disengaging the first clutch C1, K1 is a hill-hold brake pressure at which braking resistance begins, K2 is hill-hold brake pressure producing a fully braked condition, and e is the input/output rotational-speed ratio of a torque converter Subsequently during start of vehicle movement, the hydraulic pressure P.sub.C-1 of the input clutch C1 is gradually increased (P.sub.C-1 =p.sub.C-1 +.DELTA.P.sub.C-1A) while the hydraulic pressure P.sub.B-1 of the hill-hold brake B1 is gradually decreased (P.sub.B-1 ==P.sub.B-1-.DELTA.P.sub.B-1) until the ratio of the rotational speed N.sub.C-1 of the first clutch C1 becomes less than a rotational speed N.sub.C-1E corresponding to the clutch being almost engaged .DELTA.P.sub.C-1A and .DELTA.P.sub.B-1 are incremental values proportional to accelerator depression so that a delay in starting is reduced in accordance with driver demand.
摘要翻译： 当车辆在前进驱动范围内的变速器停止时，输入离合器被分离以提高燃料效率，并且同时接合山形制动器以防止车辆在陡峭的上坡上向后滚动 。 此时，在山体抱闸B1的液压PB-1逐渐增大的同时，通过DELTA PCIR（PC-1 = PC-1-DELTA PCIR）逐渐减小输入离合器C1的液压PC-1 以满足公式PB-1 = K1 + K2×e，其中DELTA Pcir是逐渐脱离第一离合器C1所需的液压变化，K1是制动电阻开始时的保持制动压力，K2 是抱闸制动压力，产生完全制动状态，e是变矩器的输入/输出转速比。 随后在车辆移动开始时，输入离合器C1的液压PC-1逐渐增加（PC-1 = pC-1 + DELTA PC-1A），而抱抱制动器B1的液压PB-1为 逐渐减小（PB-1 = PB-1-DELTA PB-1），直到第一离合器C1的转速NC-1的比率变得小于对应于几乎接合的离合器的转速NC-1E DELTA PC- 1A和DELTA PB-1是与加速器抑制成比例的增量值，从而根据驾驶员需求减少启动延迟。
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