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    • 31. 发明授权
    • Automatic transmission
    • 自动变速器
    • US07833123B2
    • 2010-11-16
    • US12122927
    • 2008-05-19
    • Takeo Hiramatsu
    • Takeo Hiramatsu
    • F16H3/62
    • F16H3/66F16H2200/0056F16H2200/201F16H2200/2043
    • An automatic transmission includes a first planetary gear set; a second planetary gear set; a third planetary gear set; and at least five friction elements. The at least five friction elements includes a first clutch adapted to selectively connect a first carrier with a second carrier; a first brake adapted to selectively stop a rotation of the second carrier; a second brake adapted to selectively stop a rotation of a rotating member having a first sun gear, a second ring gear, and a third carrier; a third brake adapted to selectively stop a rotation of a third sun gear; and a second clutch adapted to selectively connect the first carrier with a second sun gear. Each of at least seven forward speed-ratios and one reverse speed-ratio is achieved by engaging two friction elements selected from the first and second clutches and the first to third brakes.
    • 自动变速器包括第一行星齿轮组; 第二行星齿轮组; 第三行星齿轮组; 和至少五个摩擦元件。 所述至少五个摩擦元件包括适于选择性地将第一载体与第二载体连接的第一离合器; 第一制动器,其适于选择性地停止所述第二承载件的旋转; 第二制动器,其适于选择性地停止具有第一太阳轮,第二齿圈和第三行星架的旋转构件的旋转; 适于选择性地停止第三太阳齿轮的旋转的第三制动器; 以及第二离合器,其适于选择性地将所述第一行星架与第二太阳齿轮连接。 通过接合从第一和第二离合器和第一至第三制动器中选择的两个摩擦元件,实现至少七个前进速比和一个倒档速比。
    • 32. 发明授权
    • Shift control method for automatic transmission and apparatus thereof
    • 自动变速箱换档控制方法及其装置
    • US5730683A
    • 1998-03-24
    • US677784
    • 1996-07-10
    • Katsutoshi UsukiKenjiro FujitaTakeo Hiramatsu
    • Katsutoshi UsukiKenjiro FujitaTakeo Hiramatsu
    • F16H59/22F16H59/40F16H59/42F16H61/02F16H61/04F16H61/08
    • F16H61/0437F16H2061/0255F16H59/22F16H59/40F16H59/42Y10T477/636Y10T477/6937Y10T477/69373Y10T477/693754Y10T74/19251
    • In a shift control method, when a speed ratio of an automatic transmission is shifted from a third speed ratio to a first speed ratio before stoppage of a vehicle, a down shift line 3-1 in a shift pattern is shifted to a high-speed side to initiate shifting under a power-OFF condition. A third brake is released by setting the duty ratio of an electromagnetic valve of the third brake at 0% to establish a free condition (neutral condition) in an output shaft of a second transmission. While the duty ratio of an electromagnetic valve of a second clutch in a first transmission mechanism is set at 0%, the duty ratio of an electromagnetic valve of a second brake is gradually increased, so that the shifting from the second clutch to the second brake is made, and the first transmission mechanism is operatively shifted from the third speed ratio to a speed ratio corresponding to the first speed ratio. Then, the third brake is engaged again upon completion of the shifting and after mechanical engagement of a one-way clutch. Consequently, it is possible to reduce shocks in shifting the speed of the vehicle.
    • 在变速控制方法中,当自动变速器的变速比从车辆停止前的第三变速比变速到第一变速比时,变速模式中的向下换档线3-1移动到高速 在电源关闭状态下开始移动。 通过将第三制动器的电磁阀的占空比设定为0%来释放第三制动器,以在第二变速器的输出轴中建立自由状态(空档状态)。 当第一变速机构中的第二离合器的电磁阀的占空比被设定为0%时,第二制动器的电磁阀的占空比逐渐增加,从而从第二离合器向第二制动器 并且第一变速机构从第三变速比可操作地移动到对应于第一变速比的变速比。 然后,第三制动器在完成换档并且在单向离合器的机械接合之后再次接合。 因此,可以减少车辆转速的冲击。
    • 34. 发明授权
    • Method of input power on/off discrimination for an automatic vehicular
transmission system
    • 自动车辆传动系统的输入电源开/关辨别方法
    • US4947330A
    • 1990-08-07
    • US182487
    • 1988-04-15
    • Takeo Hiramatsu
    • Takeo Hiramatsu
    • B60W10/04B60W10/02B60W10/06B60W10/10B60W10/11F16H59/14F16H59/24F16H59/38F16H59/42F16H59/48F16H59/72F16H61/02F16H61/06F16H61/08F16H61/10
    • F16H59/141F16H2059/363Y10T477/693Y10T477/693635
    • A method of input power on/off discrimination for an automatic vehicular transmission system having an input shaft to which an output torque of an engine is transmitted, the method being adapted, for example, for the selection of the transmission control logic of the transmission system. The output torque of the engine transmitted to the input shaft is detected. If the detected output torque takes a value such that the rotating speed changing rate of the input shaft during transmission control is higher than a predetermined target value, it is concluded that the engine is in the power-on state. Preferably, the output torque of the engine is transmitted to the input shaft of the transmission system through a driving force transmission apparatus capable of detecting transmission torque. In this case, the speed changing rate of the engine and the transmission torque of the driving force transmission apparatus are detected, and the detected transmission torque and the product of the detected engine speed changing rate and a predetermined value are added so that the resulting sum is used as the value of the output torque of the engine. The power-on or -off state is discriminated by the output torque thus calculated.
    • 一种具有输入轴的自动车辆变速系统的输入动力开/关判别方法,发动机的输出转矩发送到输入轴,该方法适用于例如选择变速器系统的变速器控制逻辑 。 检测发动机输出轴的输出转矩。 如果检测到的输出扭矩具有使得变速器控制中的输入轴的转速变化率高于预定目标值的值,则认为发动机处于通电状态。 优选地,发动机的输出扭矩通过能够检测传动扭矩的驱动力传递装置传递到变速系统的输入轴。 在这种情况下,检测发动机的变速率和驱动力传递装置的传递扭矩,并且将检测到的传动转矩和检测到的发动机转速变化率与预定值的乘积相加,使得所得到的总和 被用作发动机的输出转矩的值。 通过如此计算的输出转矩来识别上电或关断状态。
    • 35. 发明授权
    • System and method for controlling a power transmission of a vehicle
    • 用于控制车辆的动力传递的系统和方法
    • US4775938A
    • 1988-10-04
    • US791898
    • 1985-10-28
    • Takeo Hiramatsu
    • Takeo Hiramatsu
    • F16H59/46F16H61/00F16H61/20B60K41/08F16H47/00
    • F16H61/20F16H2059/425F16H2059/467F16H2061/0078F16H2312/02Y10T477/681
    • The torque capacity of a torque transmitting device incorporated in a power transmission system between an output shaft of a hydrodynamic power transmission and a drive shaft of a vehicle is so controlled as to provide a predetermined rotation speed difference between the input and output shafts of the hydrodynamic power transmission when the vehicle is in a state of standstill, thereby reducing creeping of the vehicle in the standstill state and also improving the response of the power transmission system at the time of vehicle starting. When the vehicle is to be started, the torque capacity is feedback-controlled so as to change the rotation speed of the output shaft of the hydrodynamic power transmission at a predetermined changing rate, thereby ensuring smooth starting without any appreciable shock.
    • 在液力动力传动装置的输出轴与车辆的驱动轴之间的动力传递系统中结合的扭矩传递装置的扭矩容量受到如此控制,以便在流体动力学的输入和输出轴之间提供预定的转速差 当车辆处于静止状态时的动力传递,从而减少车辆在停止状态下的爬行,并且还改善了车辆启动时的动力传递系统的响应。 当车辆启动时,转矩容量被反馈控制,以便以预定的变化率改变流体动力传递的输出轴的转速,从而确保平稳起动而没有任何可观的冲击。
    • 36. 发明授权
    • Power transmission system for vehicle
    • 车辆动力传动系统
    • US4719998A
    • 1988-01-19
    • US738698
    • 1985-05-28
    • Takeo HiramatsuBonnosuke TakamiyaYoshimasa Nagayoshi
    • Takeo HiramatsuBonnosuke TakamiyaYoshimasa Nagayoshi
    • B60K17/35F16D25/02B60K41/02B60K17/34
    • B60K17/3505Y10T477/753
    • The present invention relates to a power transmission system for a vehicle of the type in which front and rear wheels are driven by a sole engine. In order to control the distribution of drive torque produced by the engine to front wheel side and rear wheel side of the vehicle according to a difference in rotational speed between both sides and in relative rotational direction between both sides, the power transmission system includes an oil pump adapted to be driven by a first rotational shaft which transmits a driving torque from an engine to front wheels of the vehicle and a second rotational shaft which transmits the driving force to rear wheels of the vehicle. The oil pump produces an oil pressure proportional to the difference in rotational speed and has at least two ports. A clutch mechanism couples the rotational shafts with each other by the discharge pressure of the oil pump and, the clutch mechanism is disposed between the rotational shafts. An oil pressure control system controls the discharge pressure fed from the oil pump to the clutch mechanism to adjust the coupling force of the clutch mechanism in accordance with the difference in the relative rotational direction between the pair of rotational shafts.
    • 本发明涉及一种车辆的动力传递系统,其中前轮和后轮由唯一的发动机驱动。 为了根据两侧之间的旋转速度差和两侧之间的相对旋转方向来控制由发动机对车辆的前轮侧和后轮侧产生的驱动扭矩的分配,动力传递系统包括油 泵,其适于由将发动机的驱动扭矩传递到车辆前轮的第一旋转轴和将驱动力传递到车辆的后轮的第二旋转轴驱动。 油泵产生与转速差成比例的油压,并具有至少两个端口。 离合器机构通过油泵的排出压力将旋转轴彼此连接,离合器机构设置在旋转轴之间。 油压控制系统控制从油泵向离合器机构供给的排出压力,以根据所述一对旋转轴之间的相对旋转方向的差异来调节离合器机构的联接力。
    • 37. 发明授权
    • Power transmission apparatus for vehicle
    • 车辆动力传动装置
    • US4676336A
    • 1987-06-30
    • US670903
    • 1984-11-13
    • Takeo HiramatsuYoshimasa Nagayoshi
    • Takeo HiramatsuYoshimasa Nagayoshi
    • B60K17/35F04C14/06B60K17/34
    • F04C14/06B60K17/3505
    • In a power transmission apparatus for use in a vehicle of the type in which its front and rear wheels are driven by the same engine, a first rotary shaft transmitting drive force to the front wheels and a second rotary shaft transmitting drive force to the rear wheels are coupled to each other through a hydraulic oil pump which is driven according to the rotation speed difference between the first and second rotary shafts and delivers hydraulic oil of an amount corresponding to the rotation speed difference. The pressure of hydraulic oil delivered from the pump is controlled by hydraulic control means so as to automatically change over between the two-wheel drive mode in which the front or rear wheels only are driven and the four-wheel drive mode in which both the front and rear wheels are driven.
    • 在用于其前轮和后轮由相同发动机驱动的车辆中使用的动力传动装置中,向前轮传递驱动力的第一旋转轴和向后轮传递驱动力的第二旋转轴 通过液压油泵相互耦合,所述液压油泵根据第一和第二旋转轴之间的转速差来驱动,并输出与转速差对应的量的液压油。 从泵输送的液压油的压力由液压控制装置控制,以便在仅驱动前轮或后轮的两轮驱动模式和四轮驱动模式之间自动切换,其中前轮 后轮被驱动。