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公开(公告)号：US5224399A
公开(公告)日：1993-07-06
申请号：US824544
申请日：1992-01-23
申请人： Fumiaki Baba , Masahito Kitada , Hiroshi Yoshimura
发明人： Fumiaki Baba , Masahito Kitada , Hiroshi Yoshimura
IPC分类号： F16H61/04
CPC分类号： F16H61/04 , F16H2061/0481 , F16H2061/0485 , Y10T477/693625
摘要： A control system for an automatic transmission includes a main hydraulic line to which hydraulic pressure is introduced when a manual valve takes a reverse range position for reverse movement. First and second hydraulic lines are separated from the main hydraulic line, a first frictional element is connected with the first hydraulic line, and a second frictional element is connected with the second hydraulic line. An accumulator is disposed on the second hydraulic line, a shift valve is disposed on the second hydraulic line closer to the second frictional element than the accumulator, and a first drain port is formed on the manual valve for draining hydraulic fluid from the main hydraulic line when the manual valve is shifted from the reverse range to another range. A spool is disposed in the shift valve for moving to a position to shift the shift valve so that the second line is interrupted by the shift valve and divided between a second frictional element line and an accumulator line. A second drain port is formed in the shift valve for draining the hydraulic fluid in the second frictional element line when the spool moves to the position where the shift valve interrupts the second hydraulic line between the second frictional element line and the accumulator line. A shift shock can be suppressed in a shifting operation involving the reverse range.
摘要翻译： 用于自动变速器的控制系统包括当手动阀进行反向运动的倒档位置时引入液压的主液压管路。 第一和第二液压管路与主液压管线分离，第一摩擦元件与第一液压管线连接，第二摩擦元件与第二液压管路连接。 蓄能器设置在第二液压管路上，在比第二液压管线更靠近第二摩擦元件的第二液压管路上设置换档阀，并且在手动阀上形成有第一排水口，用于从主液压管路排出液压油 当手动阀从反向范围移动到另一个范围时。 一个阀芯设置在换档阀中，用于移动到换挡阀的位置，使得第二管路被换挡阀中断，并且在第二摩擦元件线和蓄能器管线之间分配。 第二排水口形成在换档阀中，当阀芯移动到换挡阀中断第二摩擦元件线和蓄能器管线之间的第二液压管路的位置时，排出第二摩擦元件线中的液压流体。 在涉及相反范围的换档操作中可以抑制换档冲击。
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公开(公告)号：US5275069A
公开(公告)日：1994-01-04
申请号：US66594
申请日：1993-05-25
申请人： Fumiaki Baba , Masahito Kitada
发明人： Fumiaki Baba , Masahito Kitada
CPC分类号： F16H61/0437 , F16H2059/6807 , F16H59/72 , F16H61/08 , Y10T477/653
摘要： A shift control system for an automatic transmission includes a shift gear mechanism for providing a plurality of shift stages of different speed ratios, a plurality of frictional elements, a first valve for controlling a hydraulic fluid supply, a second valve provided in a hydraulic release line to control hydraulic fluid release, a first frictional element included in the plurality of the frictional elements, a second frictional element included in the plurality of the frictional elements, a piston provided in the second frictional element, a timing valve for controlling a supply timing of the hydraulic pressure for the releasing chamber of the second frictional element in response to actuating hydraulic pressure introduced into the first frictional element, an oil temperature detecting device, and a start detecting device for detecting start of engaging operation of the first frictional element. A shift judging device for judging whether or not a shift command in the control unit is made to a specific shift stage in which the first frictional element is engaged and the second frictional element, is released. A shift control mode switching device switches between a first shift control mode and a second shift control mode, the shift control mode switching device selecting the first shift control mode when the temperature of the hydraulic fluid is relatively high, and selecting the second shift control mode when the temperature of the hydraulic fluid is relatively low. Torque shock and engine speed racing can be avoided through the shift operation.
摘要翻译： 一种用于自动变速器的变速控制系统包括用于提供不同速比的多个变速级的变速齿轮机构，多个摩擦元件，用于控制液压流体供给的第一阀，设置在液压释放管线中的第二阀 以控制液压流体释放，包括在所述多个摩擦元件中的第一摩擦元件，包括在所述多个所述摩擦元件中的第二摩擦元件，设置在所述第二摩擦元件中的活塞，用于控制所述摩擦元件的供给时间的定时阀 响应于引入到第一摩擦元件的致动液压，第二摩擦元件的释放室的液压，油温检测装置和用于检测第一摩擦元件的接合操作开始的起动检测装置。 一种换档判断装置，用于判断控制单元中的换档指令是否被制成到第一摩擦元件被接合的特定换挡阶段和第二摩擦元件被释放。 变速控制模式切换装置在第一变速控制模式和第二变速控制模式之间切换，变速控制模式切换装置在液压油的温度相对较高时选择第一变速控制模式，并且选择第二变速控制模式 当液压油的温度相对较低时。 扭矩冲击和发动机转速可以通过换档操作来避免。
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公开(公告)号：US5176046A
公开(公告)日：1993-01-05
申请号：US750863
申请日：1991-08-28
申请人： Takuji Fujiwara , Tatsutoshi Mizobe , Fumiaki Baba , Masahito Kitada , Shinya Kamada , Koichiro Takeuchi
发明人： Takuji Fujiwara , Tatsutoshi Mizobe , Fumiaki Baba , Masahito Kitada , Shinya Kamada , Koichiro Takeuchi
CPC分类号： F16H61/16 , F16H61/0246 , F16H61/0206 , Y10T477/689
摘要： A control system for an automatic transmission has a shift gear mechanism with a plurality of frictional elements, including a low reverse brake which is selectively actuated for switching a power transmitting path to establish a desired shift stage. A hydraulic control circuit controls supply of a hydraulic fluid to and relief of the fluid from an actuator for the frictional element. An accumulator is provided in a hydraulic passage communicated with the low reverse brake for obviating a shock as the low reverse brake is engaged. Back pressure of the accumulator is controlled when a first shift gear stage is established through the engagement of the low reverse brake. A torque shock can be suppressed when the first stage is established in an L-range.
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公开(公告)号：US5121656A
公开(公告)日：1992-06-16
申请号：US750932
申请日：1991-08-28
申请人： Fumiaki Baba , Masahito Kitada , Shinya Kamada , Koichiro Takeuchi , Takuji Fujiwara , Tatsutoshi Mizobe
发明人： Fumiaki Baba , Masahito Kitada , Shinya Kamada , Koichiro Takeuchi , Takuji Fujiwara , Tatsutoshi Mizobe
CPC分类号： F16H61/16 , F16H61/0246 , F16H61/0206 , Y10T477/689
摘要： A shift control system for an automatic transmission including a shift gear mechanism for providing a plurality of shift stages of different speed ratios, a plurality of frictional elements to be selectively actuated for switching a power transmitting path to establish a desired shift stage, range selecting device for selecting a shift range at least between a forward and a reverse ranges through a manual operation of a driver, control device for providing the shift gear mechanism with a specific shift stage in which an input member and output member of the shift gear mechanism are rotated together with each other in the case where the reverse range is selected during a forward movement and thereafter a forward range is selected again, the specific shift stage being provided for a predetermined time period after the forward range is selected again. A double lock condition of the shift gear mechanism can be avoided.
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公开(公告)号：US5433676A
公开(公告)日：1995-07-18
申请号：US148223
申请日：1993-11-08
申请人： Mitsutoshi Abe , Kazuo Sasaki , Hiroshi Yoshimura , Masahito Kitada , Kanji Okamoto , Toshihisa Marusue
发明人： Mitsutoshi Abe , Kazuo Sasaki , Hiroshi Yoshimura , Masahito Kitada , Kanji Okamoto , Toshihisa Marusue
IPC分类号： B60K26/00 , B60W10/06 , B60W10/10 , B60W30/18 , F02D45/00 , F16H59/38 , F16H61/04 , F16H63/40 , B60K41/08
CPC分类号： B60W10/06 , B60W10/04 , B60W10/11 , B60W10/115 , B60W30/18 , B60W30/1819 , F02D37/02 , F02D41/0087 , F02D41/023 , F02D2200/0404 , F02D2200/501 , F16H2059/385 , F16H63/502 , Y02T10/84 , Y10S477/904 , Y10T477/67 , Y10T477/677 , Y10T477/692
摘要： A control apparatus for an engine and an automatic transmission controls a starting timing, a terminating timing, or methods of torque reduction of the engine during gear shifts. Using stored information such as a turbine speed signal, a gear shift signal, a degree to which a throttle valve is opened, a vehicle speed, an engine speed and so on, the control apparatus calculates an appropriate torque reduction which is performed by either retarding ignition timing or cutting fuel supplied to fuel injection valves. According to one embodiment of the invention, by detecting a variation ratio or differential value of turbine speed, a period of the torque reduction is started, ended, and kept within a proper timing. According to another embodiment of the invention, based on a "chasing" state of an input torque of the transmission against the variation of engine load, the timing of torque reduction is changed. Finally, according to yet another embodiment of the invention, a light preceding torque reduction is performed prior to a more significant torque reduction, but only when shocks due to the gear shift tend to occur.
摘要翻译： 用于发动机和自动变速器的控制装置控制变速时发动机的起动时刻，终止定时或转矩降低的方法。 使用诸如涡轮转速信号，换档信号，节气门打开的程度，车速，发动机转速等的存储信息，控制装置计算出适当的减速 点火正时或切削供给燃油喷射阀的燃料。 根据本发明的一个实施例，通过检测涡轮转速的变化率或差分值，开始转矩减小的周期，结束并保持在适当的定时。 根据本发明的另一实施例，基于变速器的输入转矩相对于发动机负荷的变化的“追逐”状态，扭矩减小的定时被改变。 最后，根据本发明的另一个实施例，在更大的转矩降低之前执行前一个转矩降低的光，但是仅当倾向于发生由于换档引起的冲击时才执行。
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公开(公告)号：US5159856A
公开(公告)日：1992-11-03
申请号：US764687
申请日：1991-09-24
CPC分类号： F16H61/0021 , F16H61/0437 , F16H2059/385 , F16H2061/0255 , F16H61/21 , Y10T477/693964 , Y10T477/693965
摘要： An automatic transmission line pressure control system controls line pressure in an automatic transmission equipped with a torque convertor for hydraulically coupling and uncoupling friction coupling elements of the automatic transmission. The automatic transmission line pressure control system regulates line pressure for selectively coupling and uncoupling the friction coupling elements so as to shift the automatic transmission into desired speed gears. The line pressure is forcibly dropped to a level lower than a level present before an occurrence of a manual shift-down operation when a shift-down sensor detects the occurrence of a manual shift-down. The line pressure is then raised as a speed sensor detects an increase in rotational speed transmitted the automatic transmission, thereby shifting the automatic transmission into desired speed gears.
摘要翻译： 自动变速器线压力控制系统控制配备有扭矩转换器的自动变速器中的管路压力，用于液压耦合和解耦自动变速器的摩擦联接元件。 自动传输线压力控制系统调节线路压力，用于选择性地耦合和分离摩擦联接元件，以便将自动变速器移动到期望的速度齿轮。 当减速传感器检测到手动换档的发生时，行压力被强制下降到低于手动换档操作发生之前的水平。 随着速度传感器检测到传动自动变速器的转速的增加，线压力升高，从而将自动变速器移动到所需的速度档位。
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公开(公告)号：US5460583A
公开(公告)日：1995-10-24
申请号：US127158
申请日：1993-09-27
申请人： Masahito Kitada , Mitsutoshi Abe
发明人： Masahito Kitada , Mitsutoshi Abe
CPC分类号： F16H61/08 , F16H2059/385 , F16H2061/0087 , F16H59/24 , F16H59/42 , Y10T477/693754 , Y10T477/69383 , Y10T477/69387
摘要： An automatic transmission shift control system calibrates a locking speed, which is regulated by a regulating valve and at which locking of a specific frictional element is performed so as to shift an transmission gear mechanism to a specific gear, in accordance with a deviation of an input speed of rotation to the transmission from a specified input speed of rotation while shifting the transmission to the specific gear. The system further varies the calibration according to a transitional period of time which is defined from a completion of shifting to a preceding gear from which the transmission is shifted directly to the specific gear to a commencement of shifting to the specific gear subsequently to the shifting to the preceding gear.
摘要翻译： 自动变速器变速控制系统校准由调节阀调节的锁定速度，并且根据输入的偏差来执行特定摩擦元件的锁定以将变速齿轮机构移动到特定齿轮 在将变速器转换到特定齿轮的同时，从指定的输入旋转速度向变速器转动速度。 该系统进一步根据从完成换挡到前一档的过渡时间段来改变校准，其中变速器直接从特定齿轮转移到开始转换到特定档位，然后转换到 前一个档位。
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公开(公告)号：US5311795A
公开(公告)日：1994-05-17
申请号：US903464
申请日：1992-06-17
CPC分类号： F16H61/061 , F16H2061/026 , F16H2061/0466 , F16H61/065 , F16H61/08 , F16H63/3003 , Y10T477/669 , Y10T477/693635 , Y10T477/693964
摘要： A control system controls a second to third gear shift of an automatic transmission in an advantageous way. The transmission has a 3-4 clutch, which is locked under hydraulic pressure, and a 2-3 brake provided with a lock pressure chamber and an unlock pressure chamber. The 2-3 brake is locked when a hydraulic pressure is developed in the lock pressure chamber only and is unlocked when a fluid pressure is developed in the unlock pressure chamber and when a hydraulic pressure is released from both the lock pressure chamber and the unlock pressure chamber. Hydraulic pressure is released from the lock pressure chamber so as to unlock the 2-4 brake only when a second to third gear shift is needed for the first time after engine ignition simultaneously with application of pressure to the 3-4 clutch so as to lock the 3-4 clutch. Other than when a second to third gear shift is needed for the first time after engine ignition, pressure is supplied into the unlock pressure chamber while keeping the lock pressure chamber supplied with pressure so as to unlock the 2-4 brake.
摘要翻译： 控制系统以有利的方式控制自动变速器的二至三档位。 变速器具有3-4档离合器，其在液压下被锁定，并且具有设置有锁定压力室和解锁压力室的2-3制动器。 当在锁定压力室中产生液压压力时，2-3制动器被锁定，并且当在解锁压力室中产生流体压力并且当液压压力从锁定压力室和解锁压力释放时解锁 房间。 液压压力从锁定压力室释放，以便只有在发动机点火后第一次需要第二次至第3档换档同时向3-4档离合器施加压力以解锁时，锁定 3-4档离合器。 除了在发动机点火之后第一次需要第二次至第三档位之外，在保持提供有压力的锁定压力室以解锁2-4制动器的同时向解锁压力室供给压力。
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公开(公告)号：US5295415A
公开(公告)日：1994-03-22
申请号：US859569
申请日：1992-03-27
申请人： Mitsutoshi Abe , Kazuo Sasaki , Hiroshi Yoshimura , Masahito Kitada , Kanji Okamoto , Toshihisa Marusue
发明人： Mitsutoshi Abe , Kazuo Sasaki , Hiroshi Yoshimura , Masahito Kitada , Kanji Okamoto , Toshihisa Marusue
IPC分类号： B60K26/00 , B60W10/06 , B60W10/10 , B60W30/18 , F02D45/00 , F16H59/38 , F16H61/04 , F16H63/40 , B60K41/08
CPC分类号： B60W10/06 , B60W10/04 , B60W10/11 , B60W10/115 , B60W30/18 , B60W30/1819 , F02D37/02 , F02D41/0087 , F02D41/023 , F02D2200/0404 , F02D2200/501 , F16H2059/385 , F16H63/502 , Y02T10/84 , Y10S477/904 , Y10T477/67 , Y10T477/677 , Y10T477/692
摘要： A control apparatus for an engine and an automatic transmission controls a starting timing, a terminating timing, or methods of torque reduction of the engine during gear shifts. Using stored information such as a turbine speed signal, a gear shift signal, a degree to which a throttle valve is opened, a vehicle speed, an engine speed and so on, the control apparatus calculates an appropriate torque reduction which is performed by either retarding ignition timing or cutting fuel supplied to fuel injection valves. According to one embodiment of the invention, by detecting a variation ratio or differential value of turbine speed, a period of the torque reduction is started, ended, and kept within a proper timing. According to another embodiment of the invention, based on a "chasing" state of an input torque of the transmission against the variation of engine load, the timing of torque reduction is changed. Finally, according to yet another embodiment of the invention, a light preceding torque reduction is performed prior to a more significant torque reduction, but only when shocks due to the gear shift tend to occur.
摘要翻译： 用于发动机和自动变速器的控制装置控制变速时发动机的起动时刻，终止定时或转矩降低的方法。 使用诸如涡轮转速信号，换档信号，节气门打开的程度，车速，发动机转速等的存储信息，控制装置计算出适当的减速 点火正时或切削供给燃油喷射阀的燃料。 根据本发明的一个实施例，通过检测涡轮转速的变化率或差分值，开始转矩减小的周期，结束并保持在适当的定时。 根据本发明的另一实施例，基于变速器的输入转矩相对于发动机负荷的变化的“追逐”状态，扭矩减小的定时被改变。 最后，根据本发明的另一个实施例，在更大的转矩降低之前执行前一个转矩降低的光，但是仅当倾向于发生由于换档引起的冲击时才执行。
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