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    • 3. 发明授权
    • Control system for torque converter
    • 变矩器控制系统
    • US5339935A
    • 1994-08-23
    • US928165
    • 1992-08-13
    • Kozo IshiiKazuo TakemotoTakuji FujiwaraTatsutoshi MizobeFumiaki BabaShigeru NagayamaOsamu WatanabeKoichiro Takeuchi
    • Kozo IshiiKazuo TakemotoTakuji FujiwaraTatsutoshi MizobeFumiaki BabaShigeru NagayamaOsamu WatanabeKoichiro Takeuchi
    • F16H61/02F16H61/14F16H45/02
    • F16H61/143F16H2045/021F16H2061/0255F16H2061/145
    • 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.
    • 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。
    • 6. 发明申请
    • Automatic transmission
    • 自动变速器
    • US20070060439A1
    • 2007-03-15
    • US11513081
    • 2006-08-31
    • Shinya KamadaJunichi DoiTakamichi TeraokaTokimori SakaTatsutoshi MizobeNaohiro SakaueYoshihiko FujitaNorio IwashitaSatoshi KomoriKazuhiko UedaSeiji Esaki
    • Shinya KamadaJunichi DoiTakamichi TeraokaTokimori SakaTatsutoshi MizobeNaohiro SakaueYoshihiko FujitaNorio IwashitaSatoshi KomoriKazuhiko UedaSeiji Esaki
    • F16H3/44
    • F16H3/66F16H2200/0052F16H2200/2012F16H2200/2043F16H2200/2097
    • In an automatic transmission (AT) in which an input shaft (Input) and an output gear (Output) are disposed on the same axis and three clutches (C1-C3) and two brakes (B1, B2) are selectively operated to provide six forward speeds, first and second planetary gear sets (GS1, GS2) are configured to consistently reduce the speed of input rotation and output the speed-reduced rotation, thereby enabling downsizing of them. The first and second planetary gear sets (GS1, GS2) are arranged in a transmission case at both the axial ends thereof. Third and fourth planetary gear sets (GS3, GS4) are connected to each other to have four rotation elements in combination, thereby constituting a Simpson planetary gear train. One of the four rotation elements (a fourth carrier (PC4) in an illustrated example) is connected to the output gear (Output). Rotations input and reduced in speed by the first and second planetary gear sets (GS1, GS2) are input to sun gears (S3, S4) of the third and fourth planetary gear sets (GS3, GS4), respectively. First to third clutches (C1-C3) and a first brake (B1) are arranged to surround the first and second planetary gear sets (GS1, GS2).
    • 在其中输入轴(输入)和输出齿轮(输出)设置在同一轴上并且三个离合器(C 1 -C 3)和两个制动器(B 1,B 2)被选择性地设置的自动变速器(AT) 操作以提供六个前进速度,第一和第二行星齿轮组(GS 1,GS 2)被配置为一致地降低输入旋转速度并输出减速旋转,从而实现它们的小型化。 第一和第二行星齿轮组(GS 1,GS 2)在轴向两端布置在变速箱中。 第三和第四行星齿轮组(GS 3,GS 4)彼此连接以组合四个旋转元件,从而构成辛普森行星齿轮系。 四个旋转元件(图示例中是第四个载体(PC4))中的一个连接到输出齿轮(输出)。 通过第一和第二行星齿轮组(GS 1,GS 2)输入和减速的转速分别输入到第三和第四行星齿轮组(GS 3,GS 4)的太阳轮(S 3,S 4) 。 第一至第三离合器(C 1 -C 3)和第一制动器(B 1)布置成围绕第一和第二行星齿轮组(GS 1,GS 2)。
    • 7. 发明授权
    • Oil pressure circuit for an automatic transmission
    • 用于自动变速箱的油压回路
    • US4841813A
    • 1989-06-27
    • US187364
    • 1988-04-28
    • Takuji FujiwaraKozo IshiiTatsutoshi Mizobe
    • Takuji FujiwaraKozo IshiiTatsutoshi Mizobe
    • F16H61/02F16H61/04F16H61/21
    • F16H61/0437F16H61/0206F16H2061/0466F16H61/21Y10T477/691Y10T477/69387
    • The multistage transmission gear mechanism is provided with a first and second coupling means for shifting speed stages, each being of a type operable hydraulically and adapted to allow four speed stages from first to fourth speed stages to be selected in accordance with a combination between a coupled state and an uncoupled state of the first and second coupling means. A third coupling means is further provided for ensuring engine braking.The second coupling means is engaged or coupled by a first pilot pressure generated by a first solenoid at the second, third and fourth speed stages. The first coupling means is coupled by a second pilot pressure generated by a second solenoid at the third and fourth speed stages. The third coupling means is coupled at the second and third speed stages.A third solenoid is provided for generating a third pilot pressure which prevails over the first pilot pressure and controls shifting the second coupling means at the third speed stage.At shifting between the second and third speed stages, the second pilot pressure prevails over the first pilot pressure to being the second coupling means into a state of its shifting being controlled by the third pilot pressure. At this time, shifting the third coupling means is controlled by the first pilot pressure to avoid a temporary engagement of all the three coupling means, thus preventing a transmission shock.
    • 多级传动齿轮机构设置有用于移动速度级的第一和第二联接装置,每个都是液压可操作的类型,并且适于允许根据耦合的第二至第四速度级之间的组合来选择来自第一至第四速度级的四个速度级 状态和第一和第二耦合装置的非耦合状态。 还提供了一种用于确保发动机制动的第三联接装置。 第二联接装置通过在第二,第三和第四速度级由第一螺线管产生的第一先导压力接合或联接。 第一联接装置通过在第三和第四速度级由第二螺线管产生的第二先导压力联接。 第三联接装置在第二和第三速度级联接。 第三螺线管被提供用于产生超过第一先导压力的第三先导压力并且控制在第三速度级移动第二联接装置。 在第二和第三转速级之间移动时,第二先导压力超过第一先导压力,以使第二联接装置进入其变速状态,由第三先导压力控制。 此时,通过第一先导压力来控制第三联接装置的移动,以避免所有三个联接装置的临时接合,从而防止传输冲击。