利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

39 条记录 (耗时 0.015 秒)

    Resolver abnormality detection circuit
    32.
    发明公开
    Resolver abnormality detection circuit 审中-公开
    旋转异常检测电路

    公开(公告)号：EP2078933A3

    公开(公告)日：2011-01-05

    申请号：EP09000230.4

    申请日：2009-01-09

    申请人： Hitachi, Ltd.

    发明人： Kanekawa, Nobuyasu ,  Kobayashi, Ryoichi ,  Koseki, Tomonobu

    IPC分类号： G01D5/244 ,  G01D5/20

    CPC分类号： G01D5/24461 ,  G01D5/20

    摘要： An abnormality detection circuit for a resolver outputs a rotation angle signal 101 corresponding to a rotation angle of a rotor from a resolver winding 102. In the abnormality detection circuit, the resolver abnormality detection circuit applies a specified signal to one terminal of the resolver winding 102, determines whether the specified signal is superimposed on the rotation angle signal 101 outputted by an other terminal of the resolver winding 102, and detects abnormalities of the resolver based on results of the determination.

    Switching state detecting apparatus, control unit and transmission unit
    33.
    发明公开
    Switching state detecting apparatus, control unit and transmission unit 失效
    切换状态检测装置，控制单元和传输单元

    公开(公告)号：EP0505189A3

    公开(公告)日：1993-02-03

    申请号：EP92302388.1

    申请日：1992-03-19

    申请人： HITACHI, LTD.

    发明人： Kobayashi, Ryoichi ,  Sugiura, Noboru

    IPC分类号： H03K5/01

    CPC分类号： H03K5/1254

    摘要： A switching state detecting apparatus capable of preventing output voltage hunting caused by mechanical switch contacts bouncing when changing state and creating voltage fluctuation (chatter) comprises a passive filter (510) connected to the switches (S1 - Sn) and a comparator (507) for comparing the output value of the RC filter with a threshold level to then output a voltage value. The comparator changes the threshold level when the output voltage of the comparator is inverted, thereby preventing the apparatus from hunting. The output of the comparator is potentially divided and the divided output potential is superposed onto an initial threshold level to provide a second threshold level exceeding the voltage chatter level of said switches.

    Electronic circuit apparatus of automobile
    36.
    发明公开
    Electronic circuit apparatus of automobile 失效
    Gehäuseeiner elektronischen Schaltungfürein Fahrzeug。

    公开(公告)号：EP0309920A2

    公开(公告)日：1989-04-05

    申请号：EP88115588.1

    申请日：1988-09-22

    申请人： HITACHI, LTD.

    发明人： Urushiwara, Noriyoshi ,  Sugiura, Noboru ,  Kobayashi, Ryoichi

    IPC分类号： H05K5/06 ,  H05K5/00

    CPC分类号： H05K5/062 ,  H01L2224/45124 ,  H01L2224/48091 ,  H01L2224/48472 ,  H01L2924/16315 ,  H05K5/0052 ,  H05K5/064 ,  H01L2924/00014 ,  H01L2924/00

    摘要： An electronic circuits (11, 12) are mounted on a metal base (13). The metal base is covered by a mold resin case (16) at the peripheral portion thereof. A projected portion (29) is formed along all the peripheral edge portion of the metal base. A step portion is formed to the metal base next to the projected portion of the metal base. A groove (28) is formed along all the peripheral portion of the bottom surface of the mold resin case. The projected portion is engaged to the groove which is filled with a bonding material (33). The bottom surface of the step portion is also covered by the bonding material when the projected portion is thrust into the groove of the mold resin case.

    摘要翻译： 电子电路（11,12）安装在金属基座（13）上。 金属基底在其周边部分被模制树脂外壳（16）覆盖。 沿着金属基座的所有周边部分形成突出部分（29）。 在金属基底的突出部分附近形成有台阶部分。 沿着模制树脂壳体的底面的所有周边部分形成凹槽（28）。 突出部分接合到填充有接合材料（33）的槽。 当突出部分被推入模制树脂壳体的槽中时，台阶部分的底表面也被接合材料覆盖。

    Ignition system for internal combustion engine
    37.
    发明公开
    Ignition system for internal combustion engine 失效
    内燃机点火系统

    公开(公告)号：EP0284982A3

    公开(公告)日：1989-02-01

    申请号：EP88104651.0

    申请日：1988-03-23

    申请人： HITACHI, LTD.

    发明人： Urushiwara, Noriyoshi ,  Sugiura, Noboru ,  Fujino, Yasunori ,  Kobayashi, Ryoichi

    IPC分类号： F02P3/055 ,  F02P11/02 ,  F02P11/06

    CPC分类号： F02P3/0552 ,  F02P11/02 ,  H03K17/08146 ,  H03K2017/0806

    摘要： An ignition system for an internal combustion engine comprising a semiconductor power switching device (2) which is controlled by a control unit (1) is dis­closed. In response to an output from a device (5) for detecting a shorting breakdown or a heat generation of the power switching device (2), the power switching device (2) and the ignition coil (3) are separated from a power supply (Vg) by a current cut-off device (8, 8ʹ). Even when the power switching device (2) breaks down by shorting, the power generation due to the continuous energization of the ignition coil (3) is prevented thereby to prevent the ignition coil (3) from being heated abnormally.

    Ignition system for internal combustion engine
    38.
    发明公开
    Ignition system for internal combustion engine 失效
    ZündsystemfürBrennkraftmaschine。

    公开(公告)号：EP0284982A2

    公开(公告)日：1988-10-05

    申请号：EP88104651.0

    申请日：1988-03-23

    申请人： HITACHI, LTD.

    发明人： Urushiwara, Noriyoshi ,  Sugiura, Noboru ,  Fujino, Yasunori ,  Kobayashi, Ryoichi

    IPC分类号： F02P3/055 ,  F02P11/02 ,  F02P11/06

    CPC分类号： F02P3/0552 ,  F02P11/02 ,  H03K17/08146 ,  H03K2017/0806

    摘要： An ignition system for an internal combustion engine comprising a semiconductor power switching device (2) which is controlled by a control unit (1) is dis­closed. In response to an output from a device (5) for detecting a shorting breakdown or a heat generation of the power switching device (2), the power switching device (2) and the ignition coil (3) are separated from a power supply (Vg) by a current cut-off device (8, 8ʹ). Even when the power switching device (2) breaks down by shorting, the power generation due to the continuous energization of the ignition coil (3) is prevented thereby to prevent the ignition coil (3) from being heated abnormally.

    摘要翻译： 公开了一种用于内燃机的点火系统，其包括由控制单元（1）控制的半导体功率开关装置（2）。 响应于用于检测电力开关装置（2）的短路故障或发热的装置（5）的输出，电力开关装置（2）和点火线圈（3）与电源（ Vg）通过电流切断装置（8,8'）。 即使当电力开关装置（2）通过短路而发生故障时，由于点火线圈（3）的连续通电而导致的发电被防止，从而防止点火线圈（3）被异常加热。