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    • 81. 发明授权
    • Control system for vehicular automatic transmissions with a quick-shift
hydraulic system for manual shifting
    • 用于手动换挡的快速液压系统的车辆自动变速器控制系统
    • US5501645A
    • 1996-03-26
    • US228186
    • 1994-04-15
    • Takao TaniguchiKazumasa TsukamotoMasahiro HayabuchiMasahiko Ando
    • Takao TaniguchiKazumasa TsukamotoMasahiro HayabuchiMasahiko Ando
    • F16H59/08F16H61/02F16H61/04F16H61/24B60K41/06
    • F16H61/0206F16H61/0437F16H2059/082F16H2061/0466Y10T477/69Y10T477/69363Y10T477/693635Y10T477/69365
    • A vehicular automatic transmission and control system therefor includes an automatic transmission including a planetary gear unit and a plurality of friction elements for connecting the components of the planetary gear unit selectively to rotary members or stationary members; a hydraulic control unit for selectively switching and controlling oil pressures to be fed to the friction elements; and an electronic control unit for outputting a signal indicating the running state of a vehicle to control the feed of the oil pressures to the friction elements. The hydraulic control unit includes first and second hydraulic servos for establishing a first gear stage by connecting either the rotary members to each other or the rotary members and the stationary members; a third hydraulic servo for establishing a second gear stage; shift switch system for switching and controlling the feed of oil pressure to either the first or third hydraulic servo in accordance with the vehicle running state; and switch system for controlling the feed of the oil pressure to one of the first and second hydraulic servos in accordance with the signal of the electronic control unit indicating the vehicle running state.
    • 一种车辆自动变速器和控制系统,包括一个包括行星齿轮单元和多个摩擦元件的自动变速器,用于将行星齿轮组件的部件选择性地连接到旋转构件或固定构件; 液压控制单元,用于选择性地切换和控制要供给到摩擦元件的油压; 以及电子控制单元,用于输出指示车辆的行驶状态的信号,以控制对摩擦元件的油压的供给。 液压控制单元包括第一和第二液压伺服机构,用于通过将旋转构件彼此连接或旋转构件和固定构件连接来建立第一齿轮台; 用于建立第二档位的第三液压伺服机构; 用于根据车辆行驶状态切换和控制向第一或第三液压伺服机构供给油压的换档开关系统; 以及开关系统,用于根据表示车辆行驶状态的电子控制单元的信号,控制将油压供给到第一和第二液压伺服机构中的一个。
    • 85. 发明授权
    • Four-wheel drive device
    • 四轮驱动装置
    • US5061229A
    • 1991-10-29
    • US599090
    • 1990-10-17
    • kazumasa TsukamotoTakao TaniguchiTakuji TaniguchiTakahiro Yamashita
    • kazumasa TsukamotoTakao TaniguchiTakuji TaniguchiTakahiro Yamashita
    • B60K17/348B60K17/346F16H3/66
    • B60K17/346F16H3/66F16H2200/0043
    • A transfer portion connected to the output shaft of a transmission portion has a front planetary gear unit the output element of which is connected to the front wheels and a rear planetary gear unit the output element of which is connected to the rear wheels, the two units being connected to each other by a common element. The output shaft of the transmission portion is directly connected to the input element of either of the planetary gear units, while the same is connected to the input element of the other planetary gear unit via a clutch C.sub.3. Furthermore, the input element of the other planetary gear unit is connected to the case via a brake B.sub.4. Therefore, the reduction function can be realized in cooperation with the two planetary gear units. As a result, the four-wheel drive device is lightened. Furthermore, since the differential gear device is constituted by the planetary gear unit, a compact and light four-wheel drive device can be provided and the neutral state can be created by completely freeing the front and the rear wheels.
    • 连接到传动部分的输出轴的传送部分具有前行星齿轮单元,其前端行星齿轮单元的输出元件连接到前轮,后行星齿轮单元的输出元件连接到后轮,两个单元 通过共同的元件彼此连接。 传动部分的输出轴直接连接到任一个行星齿轮单元的输入元件,同时通过离合器C3连接到另一个行星齿轮单元的输入元件。 此外,另一个行星齿轮单元的输入元件经由制动器B4连接到壳体。 因此,可以与两个行星齿轮单元协同实现减速功能。 结果,四轮驱动装置变轻。 此外,由于差动齿轮装置由行星齿轮单元构成,所以能够提供小型且轻型的四轮驱动装置,并且可以通过完全释放前轮和后轮而产生中立状态。