公开(公告)号：US4996954A

公开(公告)日：1991-03-05

申请号：US388235

申请日：1989-08-01

申请人： Yasunari Seki ,  Yuzuru Koike ,  Takashi Sato ,  Masatoshi Obata

发明人： Yasunari Seki ,  Yuzuru Koike ,  Takashi Sato ,  Masatoshi Obata

IPC分类号： F01L1/26 ,  F02D13/02 ,  F02D41/22 ,  F01L1/34

CPC分类号： F02D41/221 ,  F01L1/267 ,  F02D13/0226 ,  F02B2275/18 ,  F02D2041/001 ,  Y02T10/18 ,  Y02T10/40

摘要： A method for detecting an irregularity in the valve-timing changeover in an engine having a valve operating mechanism capable of operating the intake valves or exhaust valves, or both, in a different manner, known as valve timing, such as the magnitude of valve lift or the duration the valve remains open, for improving the operation of the engine at different engine speeds. The method compares the oil pressure in the supply passage to the valve timing changeover mechanism with the oil pressure that should exist after the changeover caused by the latest instruction to determine an irregularity if the pressures are not equal. A time delay may be used to accommodate the inherent time lay in the changeover to avoid a premature determination of an irregularity. An alarm may be energized or a fail-safe procedure initiated when an irregularity is detected.

公开(公告)号：US4327700A

公开(公告)日：1982-05-04

申请号：US175669

申请日：1980-08-05

申请人： Masatoshi Obata ,  Norio Satoh

发明人： Masatoshi Obata ,  Norio Satoh

IPC分类号： F02D21/08 ,  F02D9/02 ,  F02D37/00 ,  F02M3/07 ,  F02M19/12 ,  F02M25/07 ,  F02M25/06

CPC分类号： F02M3/07 ,  F02M26/57

摘要： An exhaust gas recirculation system for an internal combustion engine employs a vacuum actuator for a control valve in the exhaust gas recirculation passageway. A suction conduit to the actuator contains a magnetic valve for venting the suction conduit to atmosphere. The operating means for the magnetic valve includes a vacuum switch responsive to suction pressure in the engine intake passage modified by atmosphere pressure compensation means. A second magnetic valve responsive to engine speed also vents the suction conduit to atmosphere.

摘要翻译： 用于内燃机的排气再循环系统在废气再循环通道中使用用于控制阀的真空致动器。 致动器的吸入管道包含用于将吸入管排放到大气中的电磁阀。 用于电磁阀的操作装置包括响应于由大气压力补偿装置修改的发动机进气通道中的吸入压力的真空开关。 响应于发动机转速的第二磁阀也将抽吸管排出到大气中。

公开(公告)号：US5574637A

公开(公告)日：1996-11-12

申请号：US220710

申请日：1994-03-31

申请人： Masatoshi Obata ,  Chihiro Sawada ,  Masayuki Takata ,  Nobuyoshi Terawaki

发明人： Masatoshi Obata ,  Chihiro Sawada ,  Masayuki Takata ,  Nobuyoshi Terawaki

IPC分类号： B23Q41/00 ,  B65G61/00 ,  G05B15/02 ,  G05B19/418 ,  G06Q50/00 ,  G06Q50/04 ,  G06F19/00 ,  G05B19/414

CPC分类号： G05B19/41835 ,  Y02P90/12

摘要： A robot, DI/DO devices, and an operation panel in an automated production system workcell are controlled by a single workcell controller 17. Workcell operation software 31, a workcell operation language processor 32 and a workcell control driver 33 for realtime control run on the controller 17. The workcell operation language processor 32 interprets the workcell operation software 31 and provides commands to the workcell control driver 33. Smooth installation of a workcell, easy maintenance of a workcell, and flexible programming of operation software for a workcell are thus enabled.

摘要翻译： 自动化生产系统工作单元中的机器人，DI / DO设备和操作面板由单个工作单元控制器17控制。工作单元操作软件31，工作单元操作语言处理器32和用于实时控制的工作单元控制驱动程序33 工作单元操作语言处理器32解释工作单元操作软件31，并向工作单元控制驱动器33提供命令。因此能够实现工作单元的平滑安装，工作单元的简单维护以及用于工作单元的操作软件的灵活编程。