[특허]Safety control apparatus for reciprocating engine

Safety control apparatus for reciprocating engine 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02M-051/00
출원번호	US-0395755 (1995-02-27)
우선권정보	JP-0034784 (1994-03-04)
발명자 / 주소	Ohtake Yukio (Susono JPX)
출원인 / 주소	Toyota Jidosha Kabushiki Kaisha (Toyota JPX 03)
인용정보	피인용 횟수 : 16 인용 특허 : 0

초록 ▼

A safety control apparatus for a reciprocating engine equipped with two control systems to be able to sufficiently cope with a false normal state in which a normal state signal is output to an observation circuits of the control system despite the fact that an abnormal output has been fed to the actuators of the fuel injection system or the ignition system as a result of an abnormal operation in the control unit in the control systems. The pair of control systems are provided with a false normal state detection circuits for detecting the false normal state in addition to the provision of first and second control units for controlling the engine and an operation observation circuit therefor. When the false normal state detection circuit judges that the control system now in operation is abnormal, the engine control system is changed over to the standby system via the output change-over circuit to safely control the engine. When it is attempted to detect abnormality in the fuel injection system by the false normal state detection circuit, an occurrence of misfiring in at least any one of the cylinders of the engine is detected and when it is attempted to detect an abnormality in the ignition signal, a judgement is rendered that ignition timing is abnormal when the ignition timing of at least any one of the cylinders of the engine lies outside the normal range of ignition timing, and the engine control system is changed over to the standby system. This makes it possible to safely control the fuel injection timing and the ignition timing of a multi-cylinder reciprocating engine.

대표청구항 ▼

A safety control apparatus equipped with a pair of control systems for an operation system and a standby system in order to safely control a multi-cylinder reciprocating engine, the pair of control systems comprising: a first control unit and a second control unit for controlling the engine; operation observation circuits for said two control units; an output change-over circuit which is provided on the output sides of said first control unit and said second control unit, and sends the output of either said first control unit or said second control unit to the engine; and a false normal state detection circuit for detecting a false normal state in which a normal signal is output to said observation circuits despite the fact that an abnormal control output is fed to the engine as a result of an abnormal operation in either said first control unit or said second control unit; wherein said operation observation circuit determines that the control system which is now in operation is abnormal by relying upon a false normal state detection signal from said false normal state detection circuit, and works to change the engine control system over to said stand-by system via said output change-over circuit.

이 특허를 인용한 특허 (16)

Pensar, Johan; Akerman, Jonas, Control system of a fuel injection apparatus of an internal combustion engine.
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Lohmann Andrea,DEX ; Baeuerle Michael,DEX ; Ries-Mueller Klaus,DEX, Device for controlling boost pressure in an internal combustion engine.
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Hillman,Paul D.; Middleton,Stephen P., Engine air charge system with branch conduits.
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Kim, Jong Gu, Engine control system and method.
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Akimoto, Hikokazu; Harada, Osamu, Engine misfire detection apparatus, hybrid vehicle equipped with the same, and engine misfire detection method.
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Kacewicz, John Michael; Varady, Arthur Joseph, Engine misfire detection using adjustable windowing.
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Mehr, Andreas; Hirschle, Christoph; Henker, Jan; Elze, Roger, Method and arrangement for controlling an internal combustion engine, comprising at least two control units.
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Baeuerle, Michael, Method and device for operating a drive unit having an internal combustion engine.
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Boyer, Brad Alan; Buckland, Julia Helen; Doering, Jeffrey Allen; Westrate, Barbara; Cooper, Stephen Lee; Plagens, Keith Michael, Method and system for binary flow turbine control.
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Boyer, Brad Alan; Buckland, Julia Helen; Doering, Jeffrey Allen; Westrate, Barbara; Cooper, Stephen Lee; Plagens, Keith Michael, Method and system for binary flow turbine control.
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Schremmer, Torsten; Bohne, Steffen, Method for controlling the triggering of ignition in an internal combustion engine.
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McConville, Gregory Patrick; Gale, Allan Roy, Method for diagnosing an engine.
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Jehle, Martin; Moser, Wolfgang; Russe, Peter, Method for executing tasks and system comprising a first and a second control device.
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Wilfried Frohn DE; Ekkehard Schrey DE, Method of controlling an internal-combustion engine by switching between two engine control systems during engine run.
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Uluyol, Onder; Nwadiogbu, Emmanuel O., Sensor error detection and compensation system and method.
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Kawabe, Takao; Miyamoto, Takashi; Ukai, Satomi; Nakagawa, Reiko; Sakaki, Tetsuo; Kawashima, Isamu, Turbocharged engine with post fuel injection control.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Safety control apparatus for reciprocating engine 원문보기

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Safety control apparatus for reciprocating engine 원문보기

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이 특허를 인용한 특허 (16)

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