利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

17 条记录 (耗时 0.018 秒)

    A signal receiving method for a user's device in a global positioning system
    1.
    发明公开
    A signal receiving method for a user's device in a global positioning system 失效
    Signal-EmpfangsverfahrenfüreinVerbrauchergerätin einem GPS-Ortungssystem。

    公开(公告)号：EP0353849A1

    公开(公告)日：1990-02-07

    申请号：EP89306293.5

    申请日：1989-06-22

    申请人： HITACHI, LTD. ,  Hitachi Engineering Co., Ltd.

    发明人： Kuroda, Hiroshi ,  Watanabe, Atsushi

    IPC分类号： G01S5/14

    CPC分类号： G01S19/28 ,  G01S19/426

    摘要： In a user's device of a GPS, the calculation of GDOP values for determining satellites to be used for the positioning is initiated periodically with a predetermined operation period. Once they are determined in a certain operation period, the processing for the positioning is repeatedly executed on the basis of signals from the determined satellites through the operation period, until satellites to be used are determined in a succeeding operation period. Plural times of the positioning can be executed for every time of the calculation of a GDOP value. If, therefore, a frequency of executing the positioning are made almost as equal as conventionally, a frequency of carrying out the time-consuming calculation of GDOP values is decreased, whereby the load of a microprocessor in the user's device can be remarkably reduced.

    摘要翻译： 在GPS的用户设备中，用于确定用于定位的卫星的GDOP值的计算在预定的操作周期周期性地开始。 一旦在一定的操作期间被确定，根据来自所确定的卫星的操作周期的信号，重新执行定位处理，直到在随后的操作期间内确定要使用的卫星。 GDOP值的计算每次都可执行多次定位。 因此，如果执行定位的频率几乎与以往相同，则GDOP值的耗时计算的频率降低，能够显着降低用户装置中的微处理器的负担。

    Control device for electric rolling stock
    6.
    发明公开
    Control device for electric rolling stock 审中-公开
    Steuervorrichtungfürelektrisches Rollmaterial

    公开(公告)号：EP2636557A2

    公开(公告)日：2013-09-11

    申请号：EP13156158.1

    申请日：2013-02-21

    申请人： Hitachi Ltd.

    发明人： Watanabe, Atsushi ,  Shimada, Motomi ,  Aono, Toshihiro ,  Tachihara, Shuichi

    IPC分类号： B60L15/20 ,  B60L3/10

    CPC分类号： B61C15/12 ,  B60L3/106 ,  B60L15/20 ,  B60L2200/26 ,  B60L2240/423 ,  B60L2240/465 ,  B60T8/1705 ,  B60T2210/124 ,  B60T2270/208 ,  Y02T10/645 ,  Y02T10/72 ,  Y02T10/7275

    摘要： In order to minimize a calculation load and surely obtain a maximum adhesion torque, estimated adhesion torques are always stored, an maximum value is obtained from the stored plural estimated adhesion torques immediately before slip/ skid is detected when detecting the slip/ skid, and the maximum value is set as a maximum adhesion torque. The maximum adhesion torque immediately before the slip/ skid is detected is compared with a value of the estimated adhesion torque when the slip/ skid is detected. When the calculated value exceeds a threshold value, it is determined as a condition where an adhesion coefficient drastically drops, and a suppression/return ratio of the torque is switched to a lower value than that under a condition where the adhesion coefficient does not drastically drop. The value of the torque at the time of suppression or return is set to a smaller value to surely suppress the slip/ skid.

    摘要翻译： 为了最小化计算负荷并确保获得最大的附着力矩，总是存储估计的附着力矩，当检测到滑移/滑移时，在检测到滑移/滑动之前，从存储的多个估计的附着力矩中获得最大值， 最大值被设定为最大粘附扭矩。 将检测到滑移/滑移之前的最大粘附扭矩与检测到滑移/滑移时的估计粘附转矩的值进行比较。 当计算值超过阈值时，确定粘附系数急剧下降的条件，并且转矩的抑制/返回比被切换到比粘附系数不会急剧下降的条件下的值更低的值 。 抑制或返回时的扭矩值被设定为较小的值，以确保抑制滑移。

    Valve timing control apparatus
    8.
    发明公开
    Valve timing control apparatus 审中-公开
    气门正时控制装置

    公开(公告)号：EP1598528A3

    公开(公告)日：2010-02-17

    申请号：EP05011017.0

    申请日：2005-05-20

    申请人： Hitachi Ltd.

    发明人： Watanabe, Atsushi ,  Hayase, Isao ,  Suga, Seiji ,  Sawada, Takanori ,  Tsukada, Tomoya

    IPC分类号： F01L1/344

    CPC分类号： F01L1/3442 ,  F01L1/34409

    摘要： The invention intends to improve a response by utilizing a rotational variable torque of a cam shaft (3). Communication paths respectively communicating an advance hydraulic chamber (9) and a retard hydraulic chamber (10) provided in a second rotary member (5) and a hydraulic connecting passage are provided so as to be communicated, at a time when a control member (20) intending to improve a response by moving a phase angle control slider (19) in an axial direction or a rotational direction in correspondence to an operating state such as an advance, a retard or the like so as to intermittently communicate an advance chamber communication path (26) and a retard chamber communication path (27) with a hydraulic chamber connecting groove (25) only in a section in which a cam shaft variable torque in an operating direction is applied, is controlled in a rotating region, and a relative rotation of a third rotary member and the second rotary member stops.

    摘要翻译： 本发明旨在通过利用凸轮轴（3）的旋转可变转矩来改善响应。 分别连通设置在第二旋转构件（5）上的前进液压室（9）和延迟液压室（10）以及液压连接通路的连通路径被设置成在控制构件（20 ）期望通过相应于诸如前进或延迟等的操作状态在相应的轴向或旋转方向上移动相位角控制滑块（19）来改善响应，从而间歇地将提前室连通路径 在旋转区域中控制仅在施加有操作方向上的凸轮轴可变扭矩的区间中的液压室连通槽（25）与延迟室连通路（27）之间的相对旋转 的第三旋转构件的第二旋转构件的第一旋转构件的第二旋转构件的第二旋转构件的第二旋转构件的第二旋转构件的第二旋转构件

    Fuel pump control for a direct injection internal combustion engine
    9.
    发明公开
    Fuel pump control for a direct injection internal combustion engine 审中-公开
    KraftstoffdirekteinspritzpumpefürVerbrennungsmotoren

    公开(公告)号：EP2063100A2

    公开(公告)日：2009-05-27

    申请号：EP08019839.3

    申请日：2008-11-13

    申请人： Hitachi Ltd.

    发明人： Borg, Jonathan ,  Badarinarayan, Harsha ,  McCune, Donald J. ,  Watanabe, Atsushi ,  Shiraishi, Takuya ,  Saikalis, George

    IPC分类号： F02M59/10

    CPC分类号： F02M59/366 ,  F02M2200/09 ,  F04B49/243

    摘要： A fuel pump 20 for a direct injection internal combustion engine 22 having a body 24 with a valve seat 54. The valve 50 includes a valve head 52 and the valve 50 is movably mounted to the body 24 between an open position and a closed position. In its open position, the valve head 52 is spaced from the valve seat 54 while in its closed position, the valve head 52 abuts against the valve seat 54 and closes the valve 50. An electric coil 56 upon energization moves the valve 50 to an open position and, conversely, upon deenergization allows the valve 50 to move to a closed position. A control circuit 62 controls the energization of the coil 56 to reduce the pump noise during operation of the engine 22, especially at low speeds.

    摘要翻译： 一种用于直喷式内燃机22的燃料泵20，其具有带有阀座54的主体24.阀50包括阀头52，阀50在打开位置和关闭位置之间可移动地安装到主体24。 在其打开位置，阀头52与阀座54隔开，而在其关闭位置，阀头52抵靠阀座54并关闭阀50.通电时的电线圈56将阀50移动到 打开位置，相反地，在断电时允许阀50移动到关闭位置。 控制电路62控制线圈56的通电，以减小在发动机22运行期间的泵噪声，特别是在低速时。

    Water quality control method, and method and apparatus for measuring electrical conductivity used in the water quality control
    10.
    发明公开
    Water quality control method, and method and apparatus for measuring electrical conductivity used in the water quality control 失效
    一种用于监测水质和方法和装置，用于测量所述水的质量监测电导率方法。

    公开(公告)号：EP0274396A2

    公开(公告)日：1988-07-13

    申请号：EP88100164.8

    申请日：1988-01-08

    申请人： HITACHI, LTD.

    发明人： Endou, Masao ,  Asakura, Yamato ,  Watanabe, Atsushi ,  Sakagami, Masaharu ,  Uchida, Shunsuke ,  Nagase, Makoto ,  Baba, Tsutomu ,  Ohsumi, Katsumi

    IPC分类号： G01N33/18 ,  G01N27/06

    CPC分类号： G01N27/06 ,  G01N33/18 ,  G01N33/182

    摘要： Water quality control method and apparatus for measuring an electrical conductivity used in the water quality control; (a) electrical conduc­tivities of an aqueous solution (10) under measurement are measured at two or more different temperatures in a range of To to Tn, and a relationship between the electrical conductivity and the temperature is obtained; (b) a solute substance in the aqueous solution (10) is determined by apply­ing the relationship obtained in (a) to a relationship between a temperature and an electrical conductivity of an individual substance obtained beforehand; and (c) a concentration of the determined substance is estimated by applying the electrical conductivity at a lowest temperature To among the measurement temperatures in (a) to a relationship between an electrical conductivity and a concentration at the same temperature To with respect to an individual substance obtained beforehand.

    摘要翻译： 用于测量质量控制中使用的水的导电率的水质控制方法和装置; （A）下测定的水溶液（10）的电导率是在两个或更多个不同的温度下，在范围的要到Tn测量，且导电性和温度之间的关系得到; （B）在wässrige溶液（10）中的溶质物质确定性开采通过施加的（a）的温度之间，并预先获得单独的物质的导电率的关系而得到的关系; 和（c）的确定性开采物质的浓度是通过在最低温度下施加的电导率要在测量温度中估计（a）至一个之间的电导率和浓度在相同的温度相对于在个人关系 得到的物质事前。