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    • 2. 发明授权
    • Power steering apparatus and rotary detector used therefor
    • 动力转向装置和旋转检测器
    • US5076381A
    • 1991-12-31
    • US377385
    • 1989-07-10
    • Toshihiko DaidoHirofumi MatsuokaHidetoshi Tabuse
    • Toshihiko DaidoHirofumi MatsuokaHidetoshi Tabuse
    • B62D5/04
    • B62D5/0436B62D5/0466
    • An electric power steering apparatus of the invention is provided with a rotary detector for detecting a rotational position of a motor, a vehicle speed sensor for detecting a vehicle speed, a torque sensor for detecting a steering torque, a calculating means for calculating angular velocity of aforesaid motor on the basis of aforesaid rotational position, and a target angular velocity setting means, wherein flow quantity of electric current to a motor for assisting steering force is made larger, when the steering torque is within a dead zone, correspondingly to the increase of the deviation on the basis of the deviation between the target angular velocity and the calculated angular velocity, thereby stabilized steering feeling in the vicinity of the steering angle middle point at the time of returning the steering wheel steered by mostly using the steering torque being in the dead zone.And this power steering apparatus is capable of fully following up the rotation of the steering wheel as well as preventing the extreme returning of the steering wheel at the time of returning control, by subtracting subtractor current which is made small when both the steering torque and angular velocity are large, and made large when the steering torque is small and the angular velocity is large, from the driving current.
    • 4. 发明授权
    • Steering angle middle point detecting apparatus
    • 转向角中点检测装置
    • US4961474A
    • 1990-10-09
    • US377867
    • 1989-07-10
    • Toshihiko DaidoHirofumi MatsuokaHidetoshi Tabuse
    • Toshihiko DaidoHirofumi MatsuokaHidetoshi Tabuse
    • B62D15/02
    • B62D15/0245
    • A steering angle middle point detecting apparatus of the invention is provided with a vehicle speed sensor for detecting vehicle speed, a torque sensor for detecting at regular intervals steering torque to be added to a steering wheel, a steering position detecting means for detecting a steering position of a steering mechanism, a means for comparing a steering torque set value previously set corresponding to the vehicle speed with the steering torque detected by the torque sensor, and a steering angle middle point calculating means for calculating a middle point of a steering angle by using the steering position of the steering mechanism detected by the steering position detecting means when the steering torque is smaller than the steering torque set value, which judges that the vehicle goes straight when the detected steering torque is smaller than the steering torque set value corresponding to the vehicle speed, and judges the steering position at that time to be the middle point of the steering angle. Further, another steering angle middle point detecting apparatus is added: a judgment of an angle velocity of the steering angle, that is, a rotational speed of the steering wheel or variation of the steering torque; determines that the vehicle goes straight when it is at the specified value or less, and judges the steering position at that time to be the middle point of the steering angle.
    • 5. 发明授权
    • Pattern generating system for use in electronic sewing machines
    • 用于电子缝纫机的图案生成系统
    • US4218982A
    • 1980-08-26
    • US968366
    • 1978-12-11
    • Toshihiko DaidoHiroshi Kunimatsu
    • Toshihiko DaidoHiroshi Kunimatsu
    • D05B3/02D05B19/00D05B19/02G05B19/10
    • G05B19/106D05B19/08G05B2219/23344
    • A pattern generating system for use in electronic sewing machines. Output-oriented data relating to the amount of bight or feed for a stitch pattern and order instruction-oriented data relating to the order in which the output-oriented data is read out are stored in a static memory (ROM) separately in such a manner as to distinguish between the data relating to bight and the data relating to feed. The data relating to the address at which the respective head data on stitch patterns is stored is stored at specified addresses in the static memory addressed by selection instructions corresponding to the stitch patterns given as by a pattern selecting button unit. The static memory is connected to a microcomputer which performs a control operation such that it indexes the static memory, analyzes order instruction-oriented data and updates addresses or gives the output-oriented data to a drive unit which controls the amount and direction of bight and feed. The connection of the static memory to the microcomputer is such that the static memory can be exchanged with another static memory having stored therein data relating to other different stitch patterns.
    • 一种用于电子缝纫机的图案生成系统。 与针对输出取向数据被读取的顺序相关的针迹图案的指针导向数据和与订单指令有关的数据有关的输出导向数据以这种方式分别存储在静态存储器(ROM)中 区分有关的数据和与饲料有关的数据。 与存储有针迹图案的各个头部数据的地址相关的数据被存储在由与图案选择按钮单元给出的针迹图案相对应的选择指令寻址的静态存储器中的指定地址处。 静态存储器连接到微型计算机,其执行控制操作,使其对静态存储器进行索引,分析订购指令数据和更新地址,或者将输出取向的数据提供给驱动单元,该驱动单元控制弯道的数量和方向, 饲料。 静态存储器与微型计算机的连接使得静态存储器可以与存储有与其他不同针迹图案相关的数据的另一个静态存储器交换。