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公开(公告)号：US5093789A
公开(公告)日：1992-03-03
申请号：US461913
申请日：1990-01-08
申请人： Hiroshi Yoshimura , Takuji Fujiwara , Kozo Ishii , Kazuo Takemoto
发明人： Hiroshi Yoshimura , Takuji Fujiwara , Kozo Ishii , Kazuo Takemoto
IPC分类号： F16H3/44 , F16H59/24 , F16H59/38 , F16H59/44 , F16H59/54 , F16H59/68 , F16H59/70 , F16H59/72 , F16H61/00 , F16H61/04 , F16H61/06 , F16H61/08 , F16H61/10 , F16H61/18 , F16H63/44
CPC分类号： F16H61/0437 , F16H2059/6807 , F16H2061/0087 , F16H61/08 , Y10T477/69395 , Y10T477/693965
摘要： An oil pressure control system for an automatic transmission employed in a vehicle comprises a device for producing line pressure, a device for supplying engaging friction elements in the automatic transmission with operating oil pressure obtained from the line pressure, a device for determining a pressure control variable based on operating condition of an engine with which the automatic transmission is coupled, a device for determining a supplemental control variable based on a duration of speed change or a state of speed change in the automatic transmission, a device for revising the supplemental control variable in accordance with the operating condition of the engine to produce a revised supplemental control variable, a device for revising the pressure control variable in accordance with the revised supplemental control variable to produce a revised pressure control variable, and a control device operative to control the line pressure in accordance with the revised pressure control variable when a specific speed change operation is performed in the automatic transmission.
摘要翻译： 用于车辆中的自动变速器的油压控制系统包括用于生产管路压力的装置，用于在自动变速器中提供接合摩擦元件的装置，其具有从管线压力获得的工作油压力，用于确定压力控制变量的装置 基于与所述自动变速器相连的发动机的运行状态，基于所述自动变速器中的速度变化的持续时间或速度变化的状态来确定补充控制变量的装置，用于修正所述自动变速器中的所述补充控制变量的装置 根据发动机的运行状况产生修正的补充控制变量，根据修正的补充控制变量修正压力控制变量以产生修正的压力控制变量的装置，以及用于控制管路压力的控制装置 按照修订的压力控制 l在自动变速器中执行特定的变速操作时，
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公开(公告)号：US4984484A
公开(公告)日：1991-01-15
申请号：US413972
申请日：1989-09-28
申请人： Takuji Fujiwara , Hiroshi Yoshimura , Kozo Ishii , Kazuo Takemoto
发明人： Takuji Fujiwara , Hiroshi Yoshimura , Kozo Ishii , Kazuo Takemoto
IPC分类号： F16H61/00 , F16H59/08 , F16H59/24 , F16H59/38 , F16H59/44 , F16H61/02 , F16H61/04 , F16H61/06
CPC分类号： F16H61/0206 , F16H61/061 , F16H2059/082 , F16H2059/385 , F16H2061/044 , F16H2312/02 , F16H59/24 , F16H59/44 , Y10T477/6939 , Y10T477/69398
摘要： An automatic transmission of a vehicle has a transmission gear mechanism having at least a lower gear-speed and a higher gear-speed, and first and second friction coupling members which are applied or released by hydraulic pressures applied thereto. The first friction coupling member is kept applied when the transmission is in the lower gear-speed and the second friction coupling member is kept applied when the transmission is in the higher gear-speed. A control system for the automatic transmission has a hydraulic control circuit which controls the hydraulic pressure applied to the respective friction coupling members, thereby changing the condition of application of the friction coupling members and causing the automatic transmission to shift, and a control unit which controls the hydraulic control circuit according to the running condition of the vehicle. The control unit normally makes lower the hydraulic pressure applied to the second friction coupling member when it is kept applied than that applied to the first friction coupling member when it is kept applied by a predetermined value. When the vehicle is starting with the transmission in the higher gear-speed, the control unit inhibits itself from making lower the hydraulic pressure applied to the second friction coupling member when it is kept applied than that applied to the first friction coupling member when it is kept applied.
摘要翻译： 车辆的自动变速器具有至少具有较低档速和较高档速的变速齿轮机构，以及通过施加在其上的液压施加或释放的第一和第二摩擦联接构件。 当变速箱处于较低档速时，第一摩擦联接构件被保持施加，并且当变速器处于较高档位速度时，第二摩擦联接构件被保持施加。 用于自动变速器的控制系统具有液压控制回路，该液压控制回路控制施加到各摩擦联接构件的液压，从而改变摩擦联接构件的施加状态并使自动变速器移动;控制单元，其控制 液压控制回路根据车辆的运行状态。 当保持施加时，控制单元通常降低施加到第二摩擦联接构件的液压，而不是施加到第一摩擦联接构件上时施加到预定值的液压。 当车辆以更高的档速开始变速器时，控制单元在其被保持施加时施加于第二摩擦联接构件时的液压降低了当施加到第二摩擦联接构件时的液压 保持应用。
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公开(公告)号：US5105926A
公开(公告)日：1992-04-21
申请号：US758487
申请日：1991-09-09
申请人： Hiroshi Yoshimura , Takuji Fujiwara , Kozo Ishii , Kazuo Takemoto
发明人： Hiroshi Yoshimura , Takuji Fujiwara , Kozo Ishii , Kazuo Takemoto
IPC分类号： F16H61/14
CPC分类号： F16H61/143 , F16H2061/145 , Y10T477/653 , Y10T477/735 , Y10T477/78
摘要： A slip control system for a torque converter of an automatic transmission includes lock-up clutch device provided in a torque converter for connecting an input and output members of the torque converter directly. A torque detecting device detects a transmitted torque introduced into the output member of the torque converter, a speed difference setting device sets a target value of a rotation speed difference between the input and output members, a pressure difference control device controls a pressure difference between a releasing chamber and an engaging chamber of the lock-up clutch device, based on a predetermined relationship between the input torque and the speed difference so as to accomplish the target value of the speed difference, and a speed difference detecting device detects an actual speed difference between the input and output members. In a preferred embodiment of the invention, a compensatng device compensates the target value of the speed difference set by the speed difference setting device based on a deviation between the actual and target speed difference. A responsive slip control, therefore, can be accomplished.
摘要翻译： 用于自动变速器的变矩器的滑动控制系统包括设置在用于直接连接变矩器的输入和输出构件的变矩器中的锁止离合器装置。 扭矩检测装置检测引入到变矩器的输出部件的传递转矩，速度差设定装置设定输入部件和输出部件之间的转速差的目标值，压力差控制装置控制压力差 基于所述输入转矩和所述速度差之间的预定关系来实现所述速度差的目标值，并且速度差检测装置检测所述锁定离合器装置的实际速度差 在输入和输出成员之间。 在本发明的优选实施例中，补偿装置基于实际速度差和目标速度差之间的偏差补偿由速度差设定装置设定的速度差的目标值。 因此，可以实现响应滑移控制。
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公开(公告)号：US5213013A
公开(公告)日：1993-05-25
申请号：US770158
申请日：1991-10-03
申请人： Takuji Fujiwara , Kozo Ishii , Kazuo Takemoto , Hiroshi Yoshimura
发明人： Takuji Fujiwara , Kozo Ishii , Kazuo Takemoto , Hiroshi Yoshimura
CPC分类号： F16H61/0437 , F16H2059/385 , F16H2061/0087 , F16H61/08 , Y10T477/693962
摘要： A hydraulic pressure control system for an automatic transmission includes a multiple transmission gear mechanism having a plurality of gear stages and frictional elements for switching power transmitting paths in the transmission gear mechanism, a hydraulic control mechanism for controlling engagement and disengagement of the frictional elements to establish one of said gear stages, and a line pressure control device for controlling line pressure of the hydraulic control mechanism. A speed detecting device for detects a speed of an input element of the transmission gear mechanism during shift operation of the shift gear stage in the transmission gear mechanism, and a compensation device compensates the line pressure in accordance with signal from the speed detecting device. The line pressure is compensated by a learning control to reduce a torque shock due to the shift operation.
摘要翻译： 一种用于自动变速器的液压控制系统包括具有多个齿轮级和用于切换传动齿轮机构中的动力传递路径的摩擦元件的多传动齿轮机构，用于控制摩擦元件的接合和分离以建立的液压控制机构 所述齿轮级中的一个，以及用于控制液压控制机构的管路压力的管路压力控制装置。 一种速度检测装置，用于在传动齿轮机构中的变速齿轮级的换档操作期间检测变速齿轮机构的输入元件的速度，并且补偿装置根据来自速度检测装置的信号来补偿管路压力。 线路压力通过学习控制来补偿，以减少由于换档操作引起的转矩冲击。
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公开(公告)号：US5027676A
公开(公告)日：1991-07-02
申请号：US403486
申请日：1989-09-06
申请人： Takuji Fujiwara , Hiroshi Yoshimura , Kozo Ishii , Kazuo Takemoto
发明人： Takuji Fujiwara , Hiroshi Yoshimura , Kozo Ishii , Kazuo Takemoto
IPC分类号： F16H61/08
CPC分类号： F16H61/08 , F16H2061/0466 , Y10T477/6939 , Y10T477/69395 , Y10T477/693973
摘要： An automatic transmission has a transmission gear mechanism and a plurality of friction coupling members which are applied or released by hydraulic pressures applied thereto under the control of a hydraulic control system. The control system includes a hydraulic control circuit which controls the hydraulic pressure fed to or discharged from the respective friction coupling member, thereby changing the condition of application of the friction coupling members and causing the automatic transmission to shift. The plurality of friction coupling members includes first and second friction coupling members the conditions of application of which are changed during gear shifting from a first predetermined gear speed to a second predetermined gear speed. The first and second friction coupling members are fed with the hydraulic pressure respectively through first and second hydraulic passages. The hydraulic control circuit is provided with a pressure regulator valve which receives the pressure in the first hydraulic passage as a pilot pressure and regulates the hydraulic pressure to be fed to the second friction coupling member through the second hydraulic passage according to the pilot pressure.
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公开(公告)号：US4989702A
公开(公告)日：1991-02-05
申请号：US428763
申请日：1989-10-30
申请人： Hiroshi Yoshimura , Takuji Fujiwara , Kozo Ishii , Kazuo Takemoto
发明人： Hiroshi Yoshimura , Takuji Fujiwara , Kozo Ishii , Kazuo Takemoto
IPC分类号： F16H61/14
CPC分类号： F16H61/143 , Y10T477/6351
摘要： A control system for a torque converter includes a lock-up clutch provided in a torque converter for connecting an input member and an output member of the torque converter directly. An engaging and disengaging hydraulic device controls an engaging and disengaging action of the lock-up clutch. A shift valve provided with a first and second spools in series controls introduction of a driving hydraulic pressure into the hydraulic device. The first spool of the shift valve is subjected to a first hydraulic pressure at one end, while the second spool is subjected to a second hydraulic pressure at the other end. The first and second spools are subjected to a third hydraulic pressure therebetween. The control system further includes a first control device for controlling the first hydraulic pressure, a second control device for controlling the second hydraulic pressure, an adjusting valve for adjusting the driving hydraulic pressure introduced into the engaging or disengaging hydraulic device, and a third control device for controlling a hydraulic pressure for controlling the adjusting valve. Converter, lock-up and slip conditions of the torque converter can be selectively established by switching shift positions of the single shift valve.
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公开(公告)号：US5339935A
公开(公告)日：1994-08-23
申请号：US928165
申请日：1992-08-13
申请人： Kozo Ishii , Kazuo Takemoto , Takuji Fujiwara , Tatsutoshi Mizobe , Fumiaki Baba , Shigeru Nagayama , Osamu Watanabe , Koichiro Takeuchi
发明人： Kozo Ishii , Kazuo Takemoto , Takuji Fujiwara , Tatsutoshi Mizobe , Fumiaki Baba , Shigeru Nagayama , Osamu Watanabe , Koichiro Takeuchi
CPC分类号： F16H61/143 , F16H2045/021 , F16H2061/0255 , F16H2061/145
摘要： A control system for a torque converter includes a lock-up clutch provided in the torque converter for connecting input and output members of the torque converter directly, and a shift valve having first and second spools disposed in series in a sleeve for shifting an introduction of an engaging and releasing pressure acting on the lock-up clutch in accordance with positions of the first and second spools. The first spool is subjected to a first hydraulic pressure at one end thereof. The second spool is subjected to a second hydraulic pressure at one end thereof opposite to the one end of the first spool. The first and second spools are subjected to a third hydraulic pressure therebetween. The control system further has a first control device for controlling the first hydraulic pressure, and an adjusting valve for controlling the releasing pressure of the lock-up clutch. The shift valve provides the first and second spools with first, second and third positions corresponding to a converter condition, lock-up condition and slip condition, respectively. The shift valve is shifted between the second and third positions when the releasing pressure is relatively low so that the releasing pressure is continuously changed irrespective of the shifting action among the first, second and third positions of the shift valve. An abrupt change in the engaging force of the lock-up clutch is prevented.
摘要翻译： 用于变矩器的控制系统包括设置在变矩器中用于直接连接变矩器的输入和输出构件的锁止离合器，以及具有串联设置在套筒中的第一和第二线轴的换档阀， 根据第一和第二卷轴的位置，作用在锁止离合器上的接合和释放压力。 第一阀芯在其一端经受第一液压。 第二阀芯在与第一阀芯的一端相对的一端处受到第二液压。 第一和第二线轴之间经受第三液压。 控制系统还具有用于控制第一液压的第一控制装置和用于控制锁止离合器的释放压力的调节阀。 换档阀提供第一和第二线轴，其中第一，第二和第三位置分别对应于转换器状态，锁定状态和滑动状态。 当释放压力相对较低时，换档阀在第二和第三位置之间移动，使得释放压力连续地改变，而与换挡阀的第一，第二和第三位置之间的换档动作无关。 防止了锁止离合器的接合力的突然变化。
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公开(公告)号：US5115897A
公开(公告)日：1992-05-26
申请号：US517848
申请日：1990-05-02
申请人： Hiroshi Yoshimura , Takuji Fujiwara , Kozo Ishii
发明人： Hiroshi Yoshimura , Takuji Fujiwara , Kozo Ishii
CPC分类号： F16H61/0437 , F16H61/143 , F16H2061/145 , Y10T477/635 , Y10T477/63525
摘要： A fluid coupling for an automatic transmission includes an input element, an output element and a lockup clutch and is connected to a transmission mechanism. The lockup clutch can engage and disengage to operatively connect and disconnect the input element and the output element with and from each other. Further the lockup clutch can engage in slipping engagement to connect the input element and the output element in such a way as to allow the input element and the output element to rotate relative to each other to some extent. A control system causes the lockup clutch to engage in slipping engagement with a substantially fixed engaging force when the transmission mechanism upshifts while the lockup clutch is in slipping engagement, and to disengage when the transmission mechanism downshifts while the lockup clutch is in slipping engagement.
摘要翻译： 用于自动变速器的液力偶合器包括输入元件，输出元件和锁止离合器，并连接到变速机构。 锁止离合器可以接合和分离以将输入元件和输出元件彼此相互操作地连接和断开。 此外，锁止离合器可以以滑动接合方式进行接合以将输入元件和输出元件以允许输入元件和输出元件相对于彼此在某种程度上旋转的方式进行连接。 当锁止离合器处于滑动接合时，当变速机构升档时，控制系统使得锁止离合器以基本上固定的接合力接合滑动接合，并且当锁止离合器处于滑动接合时，当变速机构降档时，控制系统使锁止离合器接合滑动接合。
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公开(公告)号：US5086668A
公开(公告)日：1992-02-11
申请号：US427700
申请日：1989-10-27
申请人： Takuji Fujiwara , Kozo Ishii , Hiroshi Yoshimura
发明人： Takuji Fujiwara , Kozo Ishii , Hiroshi Yoshimura
CPC分类号： F16H61/0021 , F16H59/72 , Y10T477/693958 , Y10T477/693964
摘要： A hydraulic pressure control system for an automatic transmission includes a torque converter, a multiple transmission gear mechanism having a plurality of gear stages and frictional elements for switching power transmitting paths in the transmission gear mechanism, a hydraulic control mechanism for controlling engagement and disengagement of the frictional elements to establish one of the gear stages, and a line pressure control device for controlling line pressure of the hydraulic control mechanism in accordance with a vehicle operating condition. An engine torque detecting device detects an engine output torque, and a turbine speed detecting device detects a turbine speed of the torque converter. A shift condition detecting device detects a shift-up operation and a shift-down operation in the transmission, and the line pressure control device controls the line pressure in accordance with the engine torque in the shift-up operation and the turbine speed in the shift-down operation. A precise line pressure control can be accomplished for obviating torque shock at the time of the shift operation in the automatic transmission.
摘要翻译： 一种用于自动变速器的液压控制系统包括变矩器，具有多个齿轮级的多传动齿轮机构和用于切换传动齿轮机构中的动力传递路径的摩擦元件，用于控制传动齿轮的接合和分离的液压控制机构 用于建立齿轮级之一的摩擦元件，以及用于根据车辆操作条件来控制液压控制机构的管路压力的管路压力控制装置。 发动机转矩检测装置检测发动机输出转矩，涡轮转速检测装置检测变矩器的涡轮转速。 变速状态检测装置检测变速器中的上升动作和下降动作，线压控制装置根据上升动作中的发动机转矩和换档时的涡轮转速来控制行压 下降操作。 可以实现精确的线路压力控制，以在自动变速器中的换档操作时消除扭矩冲击。
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公开(公告)号：US5063814A
公开(公告)日：1991-11-12
申请号：US569994
申请日：1990-08-20
申请人： Fumiaki Baba , Hiroshi Yoshimura , Takuji Fujiwara , Kozo Ishii
发明人： Fumiaki Baba , Hiroshi Yoshimura , Takuji Fujiwara , Kozo Ishii
CPC分类号： F16H61/0437 , F16H2059/385 , F16H2059/425 , F16H2061/0087 , F16H2061/0477 , F16H61/0021 , F16H61/08 , Y10T477/69383 , Y10T477/69387 , Y10T477/693958 , Y10T477/693964
摘要： A line pressure control system for an automatic transmission, including a multiple shift stage transmission gear mechanism having a plurality of power transmitting paths of different speed ratios, has a line pressure control device for controlling a line pressure for frictional elements of the transmission gear mechanism associated with each other to establish a desirable shift gear stage. A shift period detector detects a time period for a shift operation, accomplished in terms of operation of the frictional elements controlled by the line pressure. A first compensating device controls the line pressure in terms of a learing control in a manner such that the time period for the shift operation is controlled to a target value. An abnormality detecting device detects an abrupt change, such as a turbine speed rise or, depression, or a driving torque depression in an operating condition of the transmission. A second compensating device compensates the line pressure prior to compensation of the line pressure by the first compensating device when the abrupt change is detected. The torque shock can be effectively obviated during a shift operation.
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