公开(公告)号：US5675080A

公开(公告)日：1997-10-07

申请号：US500135

申请日：1995-07-10

申请人： Shuichi Wada

发明人： Shuichi Wada

IPC分类号： G01M15/04 ,  F01P11/14 ,  F02B3/06 ,  F02B77/08 ,  F02D41/22 ,  F02M25/07 ,  F02M15/00

CPC分类号： F02D41/0055 ,  F01P11/14 ,  F02M26/49 ,  F01P2025/08 ,  F01P2031/00 ,  F02B3/06 ,  F02M26/57 ,  Y02T10/47

摘要： An apparatus for detecting an abnormality in an exhaust gas recirculation control system of an engine is disclosed, which abnormality is brought about by an operation lag of a diaphragm constituting an exhaust gas recirculation valve. The exhaust gas recirculation valve is controlled in dependence on engine operation information including an intake manifold pressure. Condition to be satisfied for enabling the abnormality decision is detected. Upon satisfaction of the abnormality decision enabling condition, the exhaust gas recirculation valve is forcibly opened and/or closed. On the basis of difference of the intake manifold pressures detected upon enforcive opening/closing of the exhaust gas recirculation valve, possible abnormality of the exhaust gas recirculation control system is decided. A temporal period during which the exhaust gas recirculation valve remains opened after the start of the engine is measured to be subsequently compared with a predetermined reference duration. When the former is greater than the latter, indicating that the exhaust gas recirculation valve is sufficiently warmed up, the abnormality detection processing is enabled. Influence of the temperature characteristic of the diaphragm of the exhaust gas recirculation valve can be excluded from the abnormality decision.

摘要翻译： 公开了一种用于检测发动机的排气再循环控制系统中的异常的装置，该异常是由构成废气再循环阀的隔膜的运行滞后引起的。 废气再循环阀根据包括进气歧管压力的发动机操作信息进行控制。 检测到能够使异常判定满足的条件。 在满足异常判定使能条件的情况下，废气再循环阀被强制打开和/或关闭。 基于在排气再循环阀的强制性打开/关闭时检测到的进气歧管压力的差异，确定废气再循环控制系统的可能的异常。 在发动机起动之后废气再循环阀保持打开的时间期间随后与预定的参考持续时间进行比较。 当前者大于后者时，表明排气再循环阀已充分预热，能够进行异常检测处理。 排气再循环阀的隔膜的温度特性的影响可以从异常判定中排除。

公开(公告)号：US5278001A

公开(公告)日：1994-01-11

申请号：US7983

申请日：1993-01-22

申请人： Hiroaki Ono ,  Shuichi Wada ,  Masayuki Hirota ,  Hiroshi Fukunaga

发明人： Hiroaki Ono ,  Shuichi Wada ,  Masayuki Hirota ,  Hiroshi Fukunaga

IPC分类号： C01B3/00 ,  C22C19/03 ,  H01M4/38

CPC分类号： C22C19/03 ,  C01B3/0031 ,  H01M4/383 ,  Y02E60/327 ,  Y10S420/90

摘要： A hydrogen storage alloy of Ni, Zr, Mn, Ti and at least one other element and at least two phases including a phase which contains at least one kind of Laves structure intermetallic compound, in which when atomic ratios of Ni, Zr, Mn and Ti are "a", "b", "c" and "d", respectively, "a" is larger than "b", "b" is larger than "c", "c" is larger than "d", and "d" is larger than the atomic ratio of at least one other element, and a ratio b/a is larger than 5/8, a ratio c/a is smaller than 11/20 and a ratio d/a is smaller than 2/5, which alloy is useful as an active material of a negative electrode of a hydrogen storage alloy cell.

摘要翻译： Ni，Zr，Mn，Ti和至少一种其它元素的储氢合金以及包含至少一种Laves结构金属间化合物的相的至少两相，其中当Ni，Zr，Mn和 Ti分别为“a”，“b”，“c”和“d”，“a”大于“b”，“b”大于“c”，“c”大于“d” 和“d”大于至少一种其它元素的原子比，b / a比大于5/8，比例c / a小于11/20，比d / a小于 2/5，该合金可用作储氢合金电池的负极的活性物质。