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1.发明授权Hydraulic control system for controlling line pressure based on backtorque and throttle rate in an automatic transmission 失效液压控制系统，用于根据自动变速器中的回转力和油门速度来控制管路压力
公开(公告)号：US5349885A
公开(公告)日：1994-09-27
申请号：US936203
申请日：1992-08-27
CPC分类号： F16H61/0437 , F16H2059/186 , F16H2059/385 , F16H2061/0096 , F16H59/28 , F16H59/70 , Y10T477/6347 , Y10T477/637 , Y10T477/693958 , Y10T477/693965
摘要： An automatic transmission includes a multi-speed transmission gear mechanism having an input shaft, an output shaft and a plurality of friction coupling elements. A hydraulic control system selectively supplies a hydraulic pressure to the friction coupling elements, thereby selectively applying the friction coupling elements to cause the transmission gear mechanism to shift to a speed which is determined according to a predetermined shift pattern. The control system sets a target hydraulic pressure to be applied to the friction coupling elements according to the kind of the shift to be effected and the engine load, and, when it is detected that the transmission gear mechanism is to make a backout upshift due to reduction in the engine load, increases the target hydraulic pressure by an amount which is determined according to the throttle opening and the turbine speed.
摘要翻译： 自动变速器包括具有输入轴，输出轴和多个摩擦联接元件的多速变速齿轮机构。 液压控制系统选择性地向摩擦联接元件提供液压，从而选择性地施加摩擦联接元件，以使传动齿轮机构转移到根据预定换档模式确定的速度。 控制系统根据要进行的换档的种类和发动机的负载来设定施加到摩擦联接元件的目标液压，并且当检测到传动齿轮机构由于 减少发动机负荷，将目标液压提高到根据节气门开度和涡轮转速确定的量。
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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：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：US5010990A
公开(公告)日：1991-04-30
申请号：US432214
申请日：1989-11-06
申请人： Hiroshi Yoshimura , Takuji Fujiwara , Kozo Ishi , Kazuo Takemoto
发明人： Hiroshi Yoshimura , Takuji Fujiwara , Kozo Ishi , Kazuo Takemoto
IPC分类号： F16H61/14
CPC分类号： F16H61/143 , F16H2061/145 , Y10T477/6351
摘要： A lockup torque converter of an automatic transmission for an automotive vehicle consists of an impeller connected to an engine, a turbine connected to the automatic transmission, and a lockup clutch disposed between first and second pressure chambers formed in a housing of said lockup torque converter for locking and releasing the lockup torque converter. A control unit supplies a hydraulic pressure into the first pressure chamber and withdraw a hydraulic pressure chamber from the second pressure chamber or reversely so as to actuate the lockup clutch to lock or unlock the lockup torque converter, respectively. A pressure regulating unit develops a pressure difference between the first and second pressure chambers when the shifting of the automatic transmission is detected, thereby causing the lockup clutch to allow the lockup torque converter to slip in accordance with certain conditions.
摘要翻译： 一种用于机动车辆的自动变速器的闭锁液力变矩器包括连接到发动机的叶轮，连接到自动变速器的涡轮机，以及设置在形成在所述锁止变矩器的壳体中的第一和第二压力室之间的锁止离合器， 锁定和释放锁止力矩转换器。 控制单元向第一压力室供应液压并从第二压力室抽出液压室，或者反向驱动锁止离合器，以分别锁定或解锁锁止变矩器。 当检测到自动变速器的变速时，压力调节单元产生第一和第二压力室之间的压力差，从而使锁止离合器允许锁止变矩器根据某些条件滑动。
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公开(公告)号：US5211082A
公开(公告)日：1993-05-18
申请号：US810154
申请日：1991-12-19
申请人： Kazuo Sasaki , Takuji Fujiwara , Tatsutoshi Mizobe
发明人： Kazuo Sasaki , Takuji Fujiwara , Tatsutoshi Mizobe
CPC分类号： F16H61/16
摘要： A control apparatus for an automatic transmission has a control unit which, when a selector lever is shifted from a forward drive gear range to a reverse gear range when the vehicle speed is not lower than a first predetermined speed, prevents the gear stage from being changed to that corresponding to the reverse gear range until the vehicle speed has fallen to a speed not greater than a second predetermined speed lower than the first predetermined speed. The control unit allows the gear stage to be changed to that corresponding to the reverse gear range if the selector lever is shifted to the reverse gear range when the vehicle speed is lower than the first predetermined speed. This control apparatus, therefore, ensures that the gear stage can be changed to that corresponding to the reverse gear range only when the driver intentionally shifts the selector lever from one of the forward drive gear ranges to the reverse gear range.
摘要翻译： 用于自动变速器的控制装置具有控制单元，当车速不低于第一预定速度时，当选档杆从正向驱动齿轮范围向后退档位移动时，防止齿轮级改变 对应于倒档档位，直到车速下降到不低于第一预定速度的第二预定速度的速度。 当车速低于第一预定速度时，如果选档杆移动到倒档档位，则控制单元允许齿轮级改变成与倒档档对应的档位。 因此，该控制装置确保仅当驾驶员有意将换档杆从正向驱动齿轮范围中的一个移动到倒档时才能将齿轮级改变为与倒档档对应的档位。
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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：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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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：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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