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

IPC分类号： F16H3/66 ,  F16H59/22 ,  F16H59/54 ,  F16H59/66 ,  F16H61/20 ,  B60K41/20

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。

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

IPC分类号： F16H3/66 ,  F16H59/22 ,  F16H59/38 ,  F16H59/42 ,  F16H59/46 ,  F16H61/00 ,  F16H61/20

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。

公开(公告)号：US5558600A

公开(公告)日：1996-09-24

申请号：US427875

申请日：1995-04-26

申请人： Kazumasa Tsukamoto ,  Masahiro Hayabuchi ,  Masaaki Nishida ,  Yoshihisa Yamamoto ,  Hiroshi Tsutsui ,  Kaoru Nadayoshi

发明人： Kazumasa Tsukamoto ,  Masahiro Hayabuchi ,  Masaaki Nishida ,  Yoshihisa Yamamoto ,  Hiroshi Tsutsui ,  Kaoru Nadayoshi

IPC分类号： F16H61/00 ,  F16H59/24 ,  F16H59/44 ,  F16H59/66 ,  F16H61/02 ,  F16H61/10 ,  F16H59/00

CPC分类号： F16H59/66 ,  B60W2550/20 ,  F16H2059/605 ,  F16H59/24 ,  F16H59/44 ,  F16H61/0213 ,  Y10T477/693

摘要： An transmission control unit includes a sensor for detecting a vehicle condition, a traffic condition monitor for determining whether or not traffic is heavy, a transmission pattern selector, and a transmission controller. The traffic condition monitor adds or subtracts a predetermined value in response to vehicle speed detected at set intervals of time so as to provide a vehicle speed value. The heavier the traffic, the larger the additional value. Also, the lighter the traffic, the larger the subtractive value. The vehicle traffic value is used in order to determine how heavy the traffic is.

摘要翻译： 发送控制单元包括用于检测车辆状态的传感器，用于确定交通量是否重的交通状况监视器，发送模式选择器和变速器控制器。 交通状况监视器响应于在设定的时间间隔检测到的车速来添加或减去预定值，以便提供车速值。 交通越重，附加值越大。 此外，交通量越轻，减法值越大。 使用车辆流量值来确定交通量多大。

公开(公告)号：US5803866A

公开(公告)日：1998-09-08

申请号：US774526

申请日：1996-12-30

申请人： Kazumasa Tsukamoto ,  Masahiro Hayabuchi ,  Masaaki Nishida ,  Yoshihisa Yamamoto ,  Akitomo Suzuki

发明人： Kazumasa Tsukamoto ,  Masahiro Hayabuchi ,  Masaaki Nishida ,  Yoshihisa Yamamoto ,  Akitomo Suzuki

IPC分类号： F16H61/08 ,  F16H59/24 ,  F16H61/06

CPC分类号： F16H61/061 ,  F16H59/24 ,  Y10T477/693636

摘要： During transmission shifts, a band brake is used in either a self-loosening direction in which an engaging force thereof is not sensitive to variations in hydraulic pressure or a self-tightening direction in which the engaging force is sensitive to variations in hydraulic pressure. In the self-loosening direction, a second regulated hydraulic pressure generated by a second pressure regulating valve (B-4 control valve) in accordance with a control hydraulic pressure generated by a second (throttle-pressure-control) linear solenoid valve in a margin control region thereof is supplied to a hydraulic servo of the fourth brake (band brake). In this clutch-to-clutch shift, a first regulated hydraulic pressure generated by a first pressure regulating valve (a shift-pressure control valve) in accordance with a control hydraulic pressure generated by a first (pressure-regulation) linear solenoid valve is supplied to a hydraulic servo of a third (UD direct) clutch. In the self tightening direction, the first regulated hydraulic pressure generated by the first pressure regulating valve (the shift-pressure control valve) is supplied to the hydraulic servo of the fourth brake (band brake).

摘要翻译： 在变速器换档期间，带式制动器用于其自身松动方向，其中接合力对液压变化不敏感或接合力对液压变化敏感的自紧方向。 在自松开方向上，由第二压力调节阀（B-4控制阀）产生的第二调节液压根据由第二（节流阀 - 压力控制）线性电磁阀产生的控制液压 其控制区域被供应到第四制动器（带式制动器）的液压伺服机构。 在该离合器离合器换档中，供给根据由第一（调压）线性电磁阀产生的控制液压的第一压力调节阀（换档压力控制阀）产生的第一调节液压， 到第三（UD直接）离合器的液压伺服系统。 在自紧方向上，由第一调压阀（变速压力控制阀）产生的第一调节液压被供给到第四制动器（带式制动器）的液压伺服。

公开(公告)号：US5800308A

公开(公告)日：1998-09-01

申请号：US644444

申请日：1996-05-13

申请人： Hiroshi Tsutsui ,  Kazumasa Tsukamoto ,  Masahiro Hayabuchi ,  Masaaki Nishida ,  Yoshihisa Yamamoto

发明人： Hiroshi Tsutsui ,  Kazumasa Tsukamoto ,  Masahiro Hayabuchi ,  Masaaki Nishida ,  Yoshihisa Yamamoto

IPC分类号： F16H61/20 ,  F16H59/24 ,  F16H59/36 ,  F16H59/38 ,  F16H59/50 ,  F16H59/54 ,  F16H59/68 ,  F16H61/06

CPC分类号： F16H61/20 ,  F16H61/061 ,  B60W30/18118 ,  F16H2059/363 ,  F16H2059/385 ,  F16H2059/425 ,  F16H2059/6807 ,  F16H2061/0477 ,  F16H2061/205 ,  F16H2061/207 ,  F16H2312/02 ,  F16H2312/022 ,  F16H59/24 ,  F16H59/36 ,  F16H59/54 ,  Y10T477/689 ,  Y10T477/6895 ,  Y10T477/6939

摘要： A control system for an automatic transmission operates a clutch for disengaging a transmission mechanism when a vehicle is stopped and idling with the brake pedal depressed while the gear shift is in a forward gear. The clutch is maintained at a drag state (friction elements disengaged but oil causing some torque transmission) bordering a slip state (friction elements engaged) When a neutral control is started, the clutch is released until the retraction of the piston of the hydraulic servo is started. When the rate of change in a rotational difference does not exceeds a reference rate of change even after a set time has elapsed, booster means of specific release state holding means decides that the clutch is in a drag region, and raises an oil pressure to be fed to the hydraulic servo, by a set pressure. On the other hand, when the rate of change exceeds the reference rate and the rotational difference increases, irrespective of the lapse of a set time, the first pressure reducing means of the specific release state holding means decides that the clutch is in a slip region, and lowers the oil pressure to be fed to the hydraulic servo, by a set pressure. As a result, the clutch is always held in a state which is immediately before the transfer from the drag region to the slip region.

摘要翻译： 用于自动变速器的控制系统操作离合器，用于当车辆停止时使传动机构脱离，并且在变速处于前进档时踩下制动踏板。 离合器保持在拖曳状态（摩擦元件脱开但导致一些扭矩传递的油）接合滑动状态（摩擦元件接合）当开始空档控制时，离合器被释放，直到液压伺服机构的活塞的缩回为 开始了 当旋转差的变化率即使经过设定时间后也不超过参考变化率时，特定释放状态保持机构的升压装置判定离合器处于拖曳区域，并将油压升高为 通过设定压力供给液压伺服。 另一方面，当变化率超过参考速度并且旋转差异增加时，与设定时间的经过无关，特定释放状态保持装置的第一减压装置决定离合器处于滑动区域 并且通过设定压力降低要供给到液压伺服机构的油压。 结果，离合器总是保持在从拖曳区域到滑移区域之前的紧挨着的状态。

公开(公告)号：US5782711A

公开(公告)日：1998-07-21

申请号：US768462

申请日：1996-12-18

申请人： Hiroshi Tsutsui ,  Kazumasa Tsukamoto ,  Masahiro Hayabuchi ,  Masaaki Nishida ,  Yoshihisa Yamamoto ,  Toshihiro Kano ,  Takayuki Kubo ,  Saoto Tsuchiya

发明人： Hiroshi Tsutsui ,  Kazumasa Tsukamoto ,  Masahiro Hayabuchi ,  Masaaki Nishida ,  Yoshihisa Yamamoto ,  Toshihiro Kano ,  Takayuki Kubo ,  Saoto Tsuchiya

IPC分类号： F16H59/24 ,  F16H59/42 ,  F16H59/44 ,  F16H59/72 ,  F16H61/00 ,  F16H61/06 ,  F16H61/08 ,  F16H5/40

CPC分类号： F16H61/061 ,  F16H2059/425 ,  F16H2061/0087 ,  F16H59/24 ,  F16H59/42 ,  F16H59/44 ,  F16H59/72 ,  F16H61/08 ,  Y10T477/6937 ,  Y10T477/6939 ,  Y10T477/693958

摘要： A hydraulic pressure control apparatus for an automatic transmission including a microprocessor-based control unit for controlling hydraulic pressure supplied to hydraulic servos of friction engagement elements. The control apparatus calculates a target hydraulic pressure P.sub.TA for a condition at the start of the inertia phase in accordance with the input torque, and a gradient based on the target hydraulic pressure and a predetermined time t.sub.TA. A first up-sweep of hydraulic pressure is performed by the apparatus with the gradient. A relatively gradual gradient .delta.P.sub.TA is set based on a target rotation change rate for the input rotational speed to provide a predetermined change amount when the hydraulic pressure becomes the target hydraulic pressure P.sub.TA. The control apparatus performs a second up-sweep with the gradient .delta.P.sub.TA. When the rotational speed change .DELTA.N of the input rotation becomes a rotation change start-determining rotational speed dN.sub.S, the control apparatus feedback-controls the hydraulic pressure with a predetermined gradient while referring to the input rotation change. Further, the control apparatus detects the target shift start time and the rotational speed change rate at the target shift start time to correct the target hydraulic pressure P.sub.TA, the gradient .delta.P.sub.TA of the second sweep section, and the target shift start time t.sub.aim.

摘要翻译： 一种用于自动变速器的液压控制装置，包括基于微处理器的控制单元，用于控制供应到摩擦接合元件的液压伺服的液压。 控制装置根据输入转矩和基于目标液压和规定时间tTA的梯度，计算出惯性阶段开始时的条件的目标液压PTA。 液压的第一次上升是由具有梯度的装置进行的。 基于用于输入转速的目标旋转变化率来设定相对逐渐的梯度ΔPTA，以在液压成为目标液压PTA时提供预定的变化量。 控制装置用梯度ΔPTA执行第二次上扫。 当输入旋转的转速变化DELTA N变为旋转变化开始判定转速dNS时，控制装置参照输入的转动变化以预定的斜率反馈控制液压。 此外，控制装置检测目标换档开始时刻的目标换档开始时间和转速变化率，以校正目标液压PTA，第二扫描部分的斜率ΔPTA和目标换档开始时间taim。

公开(公告)号：US5649880A

公开(公告)日：1997-07-22

申请号：US580105

申请日：1995-12-22

申请人： Hiroshi Tsutsui ,  Kazumasa Tsukamoto ,  Masahiro Hayabuchi ,  Masaaki Nishida ,  Yoshihisa Yamamoto

发明人： Hiroshi Tsutsui ,  Kazumasa Tsukamoto ,  Masahiro Hayabuchi ,  Masaaki Nishida ,  Yoshihisa Yamamoto

IPC分类号： B60W10/06 ,  F16H59/42 ,  F16H59/44 ,  F16H59/46 ,  F16H59/50 ,  F16H59/68 ,  F16H61/04 ,  F16H61/08 ,  F16H61/10 ,  F16H61/12 ,  F16H61/20 ,  F16H63/50 ,  F16H59/30 ,  B60K41/02

CPC分类号： F16H61/12 ,  B60W10/06 ,  B60W10/115 ,  B60W2050/021 ,  F16H2059/6807 ,  F16H2061/1208 ,  F16H2061/1224 ,  F16H2061/1232 ,  F16H2061/124 ,  F16H2061/1264 ,  F16H2312/02 ,  F16H2312/022 ,  F16H2312/04 ,  F16H59/42 ,  F16H59/44 ,  F16H59/46 ,  F16H61/20 ,  F16H61/686 ,  Y10S477/906 ,  Y10T477/6414 ,  Y10T477/677 ,  Y10T477/6934 ,  Y10T477/753

摘要： A control system for control of a clutch interposed between a fluid transmission unit and a speed change unit in a vehicular automatic transmission. The control system includes a first R.P.M. detector for detecting clutch input side R.P.M. and a second R.P.M. detector for detecting clutch output side R.P.M. A stop state detector determines if the vehicle is at a standstill and a starting operation detector detects a starting operation by the driver. The hydraulic control unit includes a hydraulic servo for applying/releasing the input clutch, a control signal oil pressure generating solenoid valve for generating a control signal oil pressure, a control valve for regulating a forward running range pressure according to the control signal oil pressure to generate a control oil pressure; a change signal oil pressure generating solenoid valve for generating a change signal oil pressure and a change-over valve switchable by the change signal oil pressure, between a first position in which it feeds the forward running range pressure to the hydraulic servo, and a second position in which it feeds the control oil pressure to the hydraulic servo. A failure is decided if the clutch input/output R.P.M. difference is over a set value which is set on the basis of the clutch input/output R.P.M. difference when the starting operation is detected by the starting operation detector. A fail-safe feature causes a shift output to a higher speed gear stage, over-riding a control signal from the pressure booster, when a failure is decided, to output the change signal to the solenoid of the control signal oil pressure solenoid valve to thereby bring the change-over valve into the first position.

摘要翻译： 一种用于控制车辆自动变速器中的流体传动单元和变速单元之间的离合器的控制系统。 控制系统包括第一个R.P.M. 用于检测离合器输入侧R.P.M.的检测器。 和第二个R.P.M. 用于检测离合器输出侧R.P.M.的检测器。 停止状态检测器确定车辆是否处于停止状态，起动操作检测器检测驾驶员的起动操作。 液压控制单元包括用于施加/释放输入离合器的液压伺服机构，用于产生控制信号油压的控制信号油压发电电磁阀，用于根据控制信号油压调节前进行程范围压力的控制阀， 产生控制油压; 用于产生变化信号油压的变化信号油压发电电磁阀，以及通过变更信号油压切换的转换阀，在其向前运行范围压力供给到液压伺服的第一位置和第二 将控制油压送到液压伺服系统的位置。 如果离合器输入/输出R.P.M. 差异超过基于离合器输入/输出R.P.M设定的设定值。 当启动操作检测器检测到启动操作时的差异。 故障保护功能导致变速输出到更高档位，超过来自升压器的控制信号，当故障确定时，将变更信号输出到控制信号油压电磁阀的螺线管，以 从而使转换阀进入第一位置。

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

IPC分类号： F16H61/04 ,  B60T7/12 ,  F16H3/66 ,  F16H61/20 ,  B60K41/26

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。

公开(公告)号：US5779585A

公开(公告)日：1998-07-14

申请号：US763946

申请日：1996-12-12

申请人： Kazumasa Tsukamoto ,  Masahiro Hayabuchi ,  Masaaki Nishida ,  Yoshihisa Yamamoto ,  Akitomo Suzuki

发明人： Kazumasa Tsukamoto ,  Masahiro Hayabuchi ,  Masaaki Nishida ,  Yoshihisa Yamamoto ,  Akitomo Suzuki

IPC分类号： F16H61/00 ,  F16H61/70

CPC分类号： F16H61/702 ,  F16H2306/14 ,  F16H2306/20 ,  F16H2306/44 ,  F16H2306/52 ,  F16H61/686 ,  F16H61/70

摘要： To achieve a predetermined speed by engaging or releasing friction engagement elements of an auxiliary shift mechanism, a fluid pressure changeover valve is switched to a position for communication between a regulated pressure input port and an output port, so that regulated fluid pressure from a pressure regulating valve is supplied through second shift mechanism-side shift valves to the friction engagement elements of the auxiliary shift mechanism to be engaged or released. This position switch of the changeover valve also connects a line pressure input port to an output port whereby line pressure is supplied to the main shift mechanism-side shift valves to maintain the main shift mechanism in a predetermined speed state. To achieve a predetermined speed by a shift in the main shift mechanism, the regulated pressure input port is connected to the output port providing communication with the main shift mechanism shift valves, and the line pressure input port becomes connected to the output port providing communication with the auxiliary shift mechanism shift valves.

摘要翻译： 为了通过接合或释放辅助换档机构的摩擦接合元件来实现预定速度，流体压力切换阀被切换到用于在调节压力输入端口和输出端口之间连通的位置，使得来自压力调节的调节流体压力 阀通过第二换档机构侧换档阀供给到辅助换档机构的摩擦接合元件以被接合或释放。 切换阀的该位置开关还将线路压力输入端口连接到输出端口，由此向主换档机构侧换档阀提供管路压力，以将主变速机构保持在预定速度状态。 为了通过主换档机构的换档来实现预定速度，调节压力输入端口连接到提供与主换档机构换档阀的连通的输出端口，并且线路压力输入端口连接到输出端口， 辅助换档机构换档阀。

公开(公告)号：US5653660A

公开(公告)日：1997-08-05

申请号：US428633

申请日：1995-04-25

申请人： Kazumasa Tsukamoto ,  Masahiro Hayabuchi ,  Masaaki Nishida ,  Yoshihisa Yamamoto

发明人： Kazumasa Tsukamoto ,  Masahiro Hayabuchi ,  Masaaki Nishida ,  Yoshihisa Yamamoto

IPC分类号： F16H61/00 ,  F16H59/22 ,  F16H59/24 ,  F16H59/36 ,  F16H59/44 ,  F16H59/54 ,  F16H59/72 ,  F16H61/02 ,  F16H61/08 ,  F16H61/10 ,  F16H61/20 ,  F16H61/04

CPC分类号： F16H61/20 ,  F16H2061/207 ,  F16H2312/02 ,  F16H59/22 ,  F16H59/24 ,  F16H59/36 ,  F16H59/44 ,  F16H59/54 ,  F16H59/72 ,  F16H61/0206 ,  Y10T477/6937 ,  Y10T477/6939 ,  Y10T477/69395

摘要： The automatic transmission equipped with the control system of this invention is combined with a coupling for transmitting the rotation of the engine to the transmission and includes: a clutch which is applied when a forward running range is selected; a hydraulic servo which receives an oil pressure for applying the clutch; and a hydraulic control unit for controlling the oil pressure to the hydraulic servo. The hydraulic control unit includes: a manual valve which, when moved to a forward drive position by the operation of a shift lever, receives oil pressure from an oil pressure source, and supplies that oil pressure as a forward range oil pressure in a first oil passage; a regulator valve for regulating the oil pressure coming from the oil pressure source to thereby generate a regulated oil pressure in a second oil passage; a change-over valve switchable between (1) a first position for supplying the forward range oil pressure to a third oil passage and (2) a second position for supplying the regulated oil pressure to the third oil passage; a fourth oil passage for feeding the regulated oil pressure to the hydraulic servo while bypassing the change-over valve; and a one-way valve arranged in the fourth oil passage for allowing oil flow only in the direction from the regulator valve to the hydraulic servo.

摘要翻译： 配备有本发明的控制系统的自动变速器与用于将发动机的旋转传递到变速器的联轴器组合，包括：当选择正向行驶范围时施加的离合器; 接收用于施加离合器的油压的液压伺服机构; 以及用于控制液压伺服机构的油压的液压控制单元。 液压控制单元包括：手动阀，当通过变速杆的操作将其移动到前进驱动位置时，从油压源接收油压，并将该油压作为前进油压供给到第一油中 通道; 调节阀，用于调节来自油压源的油压，从而在第二油路中产生调节油压; （1）用于向第三油路供给前进油压的第一位置和（2）向第三油路供给调节后的油压的第二位置的切换阀， 第四油路，用于在绕过转换阀的同时将调节后的油压供给液压伺服; 以及设置在第四油路中的单向阀，用于仅在从调节阀到液压伺服机构的方向上仅流动油。