[특허]Air-fuel ratio control method for internal combustion engines

Air-fuel ratio control method for internal combustion engines 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02M-051/00
출원번호	US-0812705 (1991-12-23)
우선권정보	JP-0417324 (1990-12-28)
발명자 / 주소	Hosoda Fumio (Wako JPX) Fujimoto Sachito (Wako JPX) Ito Hiroshi (Wako JPX) Takahashi Shunji (Wako JPX)
출원인 / 주소	Honda Giken Kogyo K.K. (Tokyo JPX 03)
인용정보	피인용 횟수 : 36 인용 특허 : 0

초록 ▼

An air-fuel ratio control method for an internal combustion engine. The air-fuel ratio of an air-fuel mixture supplied to the engine is feedback-controlled to a predetermined value in response to an output from the exhaust gas ingredient concentration sensor. The temperature of at least one component part of the engine, which should be controlled, is estimated based on the detected temperature of exhaust gases, engine rotational speed, and engine load. The air-fuel ratio of the air-fuel mixture is inhibited from being feedback-controlled but enriched, when the estimated temperature of any one of the at least one component part of the engine is higher than a corresponding predetermined value.

대표청구항 ▼

An air-fuel ratio control method for an internal combustion engine including an exhaust passage, an exhaust gas ingredient concentration sensor arranged in said exhaust passage for detecting concentration of an exhaust gas ingredient, and at least one component part temperature of which is to be controlled, wherein the air-fuel ratio of an air-fuel mixture supplied to said engine is feedback-controlled to a predetermined value in response to an output from said exhaust gas ingredient concentration sensor, and when it is determined that said engine is in a predetermined high load operating condition and at the same time said at least one component part of said engine is in a predetermined high temperature state, the air-fuel ratio of said air-fuel mixture is inhibited from being feedback-controlled but enriched instead, the improvement comprising the steps of: (1) detecting a temperature of exhaust gases emitted from said engine; (2) detecting rotational speed of said engine; (3) detecting load on said engine; (4) estimating temperature of said at least one component part of said engine based on said temperature of exhaust gases, engine rotational speed, and engine load, detected at the above steps (1) to (3); and (5) determining that said at least one component part of said engine is in said predetermined high temperature state when said estimated temperature of any one of said at least one component part of said engine is higher than a corresponding predetermined value.

이 특허를 인용한 특허 (36)

Oketani Toshikazu (Wako JPX) Teshirogi Tetsu (Wako JPX) Shimasaki Yuichi (Wako JPX) Hatcho Seiji (Wako JPX) Matsumoto Seiji (Wako JPX) Aoki Takuya (Wako JPX) Saito Akihisa (Wako JPX) Komatsuda Takash, Adsorber temperature-estimating device for internal combustion engines and exhaust gas-purifying system using same.
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Bruch Kevin L. ; Neuenschwander Peter,CHX, Air to fuel ratio control for gas engine and method of operation.
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Kitagawa Hiroshi (Wako JPX) Hatcho Seiji (Wako JPX) Kaneko Tetsuya (Wako JPX) Kato Akira (Wako JPX) Hirota Toshiaki (Wako JPX) Watanabe Masami (Wako JPX) Takahashi Jun (Wako JPX), Air-fuel ratio control system for internal combustion engines and exhaust system temperature-estimating device applicabl.
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Tomisawa Naoki (Atsugi JPX), Apparatus and method for estimating the temperature of an automotive catalytic converter.
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Yasui, Yuji; Iwaki, Yoshihisa, Apparatus for and method of controlling temperature of exhaust gas sensor, and recording medium storing program for controlling temperature of exhaust gas sensor.
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Grant Robert Michael ; Zimmerman Eugene S. ; Cullen Michael John ; Curran Patrick Joseph ; Tuttle Richard, Catalytic converter temperature control system and method.
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Kolmanovsky Ilya V. ; Jankovic Mrdjan J ; Jankovic Miroslava, Control method for turbocharged diesel engines having exhaust gas recirculation.
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Ohuchi Hirofumi,JPX ; Azuma Tadahiro,JPX, Device for controlling the rise of the catalyst temperature in an internal combustion engine.
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Ohuchi, Hirofumi; Azuma, Tadahiro, Device for controlling the rise of the catalyst temperature in an internal combustion engine.
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Bidner, David Karl; Dearth, Mark Allen, Direct injection of diluents or secondary fuels in gaseous fuel engines.
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Bidner, David Karl; Dearth, Mark Allen; Surnilla, Gopichandra, Direct injection of diluents or secondary fuels in gaseous fuel engines.
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Nakajima Yuki (Yokosuka JPX) Sato Kenichi (Yokohama JPX), Engine air-fuel ratio controller.
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Ogawa Ken,JPX ; Komoriya Isao,JPX, Exhaust gas purification system of internal combustion engine.
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Kokubu,Shiro, Fuel injection control device for a variable-fuel engine and engine incorporating same.
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Nishimura Yoichi (Wako JPX) Maki Hidetaka (Wako JPX) Hasegawa Yusuke (Wako JPX) Akazaki Shusuke (Wako JPX), Fuel metering control system for internal combustion engine.
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Sandberg, Lars; Litorell, Martin, Limitation of controllable operating parameters in an engine.
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Kurihara Nobuo,JPX ; Kimura Hiroshi,JPX ; Takaku Yutaka,JPX ; Ishii Toshio,JPX, Method and apparatus for diagnosing engine exhaust gas purification system.
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Kurihara Nobuo,JPX ; Kimura Hiroshi,JPX ; Takaku Yutaka,JPX ; Ishii Toshio,JPX, Method and apparatus for diagnosing engine exhaust gas purification system.
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Kurihara, Nobuo; Kimura, Hiroshi; Takaku, Yutaka; Ishii, Toshio, Method and apparatus for diagnosing engine exhaust gas purification system.
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Bucktron,Edward; Egerstaffer,Derek J.; Duke,Jason D., Method and arrangement for achieving an adjusted engine setting utilizing engine output and/or fuel consumption.
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Peter Novak SE; Soren Eriksson SE, Method and device for controlling a combustion engine.
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Schnaibel Eberhard (Hemmingen DEX) Schneider Erich (Kirchheim DEX) Blischke Frank (Stuttgart DEX), Method and device for forming a simulated signal of the temperature of the exhaust gas, exhaust gas sensor or catalytic.
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Brown Scott C. ; Willi Martin L., Method for balancing the air/fuel ratio to each cylinder of an engine.
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Brown Scott C. ; Willi Martin L., Method for balancing the air/fuel ratio to each cylinder of an engine.
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Russ, Stephen George, Method for controlling an engine.
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Russ, Stephen George, Method for controlling an engine.
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Audoin,Arnaud, Process and device for determining the internal temperature of a catalytic converter of a vehicle equipped with a heat engine.
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Vos, David W.; Piedmonte, Michael D.; Mott, Gregory E.; Boggs, Christopher M.; Allen, Keith M., System and method for control of internal combustion engine.
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Lewis,Donald James; Carlstrom,Kevin Ronald; Bower, Jr.,Stanley Larue; Hahn,Stephen L., System and method for controlling catalyst storage capacity.
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Lewis,Donald James; Carlstrom,Kevin Ronald; Bower, Jr.,Stanley Larue; Hahn,Stephen L., System and method for determining set point location for oxidant-based engine air/fuel control strategy.
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Mukaihara,Takashi; Ishii,Toshio; Miura,Kiyoshi; Kawano,Kazuya, System for diagnosing deterioration of catalyst.
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Mukaihira Takashi (Katsuta JPX) Ishii Toshio (Mito JPX) Miura Kiyoshi (Ibaraki-ken JPX) Kawano Kazuya (Katsuta JPX), System for diagnosing deterioration of catalyst.
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Mukaihira,Takashi; Ishii,Toshio; Miura,Kiyoshi; Kawano,Kazuya, System for diagnosing deterioration of catalyst.
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Mukaihira,Takashi; Ishii,Toshio; Miura,Kiyoshi; Kawano,Kazuya, System for diagnosing deterioration of catalyst.
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Takashi Mukaihira JP; Toshio Ishii JP; Kiyoshi Miura JP; Kazuya Kawano JP, System for diagnosing deterioration of catalyst.
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Donaldson, A. Burl, Wetstacking avoidance in internal combustion engines.
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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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연합인증

Air-fuel ratio control method for internal combustion engines 원문보기

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Air-fuel ratio control method for internal combustion engines 원문보기

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이 특허를 인용한 특허 (36)

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