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9437070 New instrument to measure the compression ratio of automobile engines by pressure variation method: First report: Measurement principle
Abstracts 1994 JSAE Autumn Comention / J S A E Ret'iew 16 (1995) 95-113
This paper describes a simple approach to reduce the vibration. The natural frequencies of the mirror were decided by means of the combination of experimental Modal Analysis with Modal Analysis applied Finite Element Method (FEM). The calculation of amplitudes of thc main components agreed well with experimental ones. Authors show the process of improving the vibration of the inner mirror using this method.
9437016 The Study on Application of High Damping Adhesive to Body Joining Locations Hideki Fukudome, Kazuyuki Nakazato, Yoshihiro Aoi (Mitsubishi Motors Corporation), pp. 81-84, 12 figs., 4 tables. We have developed a new structural adhesive to improve the damping properties compared with current structural adhesives. This adhesive is applied to joining locations of body structural panels in passenger vehicles, and can reduce significantly noise and vibration from body structure. We also established effective application technique for the developed adhesive to maximize its damping performance. Lean Burn Engine Management System and its Distinctive Kunitomo Minamitani, Tetsushi Hosokai, Futoshi Nishioka. Yasuyoshi Hori, Hideshi Terao, Hideyuki Nishi (Mazda Motor Corporation), pp. 85-88, 9 figs., 1 table, 2 refs. A new 1.5 liter 4valve DOHC lean burn engine has been developed. For this engine, an all new engine management system was specially developed for dramatically improving driveability and fuel economy. This was achieved by getting the most out of its exhaust after treatment performance using the special three-way-catalyst for lean burn and the internal combustion characteristics. This paper introduces the overview of the features on this new control system. In addition, the techniques particularly used in this system for improving driveability and reducing fuel consumption are focused in detail. 9437025
Feature
Development of a new idle speed control strategy " F u e l leading t y p e " Masaru Kurihara, Masanori lgarasi, Ryuji Kataoka (Sub-
9437034
aru Research Center Co., LTD.), pp. 89-91, q figs. A new idle control strategy for multi point fuel injection engines was developed. Firstly, the mass of fuel to be injected is determined by calculation based upon the idle speed. Secondly, the "idle speed control valve" is actuated to make the engine induct correct air mass to maintain the desired air/fuel ratio. To calculate the requirement of ISC valve actuation, mathematical model of the air flow in the intake system is used. Experimental results showed that target idle speed was maintained very well despite severe disturbance.
Development of Electronic EGR Control System for Gasoline Engine: Part 2: Study on Control Accuracy and Specific fuel consumption Mamoru Fujieda, Nobuo Kurihara, Seiji Asano (Hitachi. 9437043
i.t.d.), pp. 93-96, 12 figs., 1 table, 2 refs. The object of this study is to develop an electronic EGR control system which can reduce fuel consumption and NOx emission for gasoline engine. Effects of the control method and the actuator characteristics on EGR control were clarified using EGR simulator and gasoline engine.
9437052 Measuring Spark Plugs with Integrated Cylinder Pressure Sensor Rolf H. Kuratle (Kistler lnstrumente AG Winterthur), Tamaki Minoyama (Kistler Japan Co., Ltd.), pp. 97-100. 9 figs., 2 tables, 7 refs. The development history of an instrumented spark plug with pressure sensor is presented. The principle investigations are concerned with the oscillations in the pipe and different amplifier types for the sensor. The measuring spark plug is qualified with engine measurements. Both, the thermodynamic optimisation of the combustion process, as well as the engine calibration are discussed.
105
It is generally known that fuel volatility considerably influence driveability and composition of exhaust gas. Recently many papers have clarified the relation between the influence and fuel volatility of such at T10, T50, RVP. Those papers suggest that detection of fuel volatility is very useful for engine control system. So we have studied the fuel w~latility sensor paying attention to correlation between cavitation number and vapor pressure. This paper describes the development of a Fuel Composition Sensor with the long orifice for forming cavitation and the photocoupler for detecting the cavitation events. New I n s t r u m e n t to Measure the Compression Ratio of Automobile Engines by Pressure Variation Method: First report: Measurement principle Akio Takamura, Susumu Fukusima, Kazuo 9437070
Makishima (Ono Sokki Co., Ltd), pp. 105-108, 10 figs., 1 table, 6 refs. A new method to measure accurately the compression ratio of automobile engines was proposed. Air in the compression space of a cylinder is compressed sinusoidaly by a piston with a certain small volume, and the volume of compression space can be determined by detecting the pressure change. In this report, the principle of the method is described and effects of geometry of the chamber and others on the accuracy were discussed. Theoretical and experimental analysis showed that the polytropic index depends on the volume/surface ratio of the chamber.
9437089 Study on Digital Filtering Technology of Crank Speed Measurement: Design of Digital Filter to Detect Misfire in Internal Combustion Engine at High Speed Revolution Shigetaka Kuroda, Yuichi Shimasaki, Akihiro Yamato (HONDA R&D Co., LTD), Hisashi lgarashi, Shigeru Maruyama (HONDA R&D Co., LTD), Takao Asaka (YOKOGAWA EKECTRIC Corp.), pp. 109-112, 11 figs., 1 table, 4 refs. A technology has been established which extracts a wave representing a certain frequency targeted from various frequencies of the crankshaft rotation signal in the internal combustion engine. A digital filter plays an important role in this new technology. This technology, then, has made it possible to detect misfire and roughness of internal combustion engine at high speed revolution.
9437098 Development of Three-Dimensional Displacement Measurement Method Using CCD cameras Seiichi Matumoto, Yasuhiko Miwata, Tohru Kuwabata (Toyota Motor Corp.), pp. 113-116, 13 figs., 2 refs. In order to measure the displacement of moving parts in a vehicle without difficulty, three-dimensional displacement measurement method has been developed. Processing order, the first, image processing system calculates center of gravity of spherical luminous target mark that is photographed. Next, three-dimensional displacement was calculated with initial position of cameras and target marks measured before photographing, displacement of center of gravity by stereo pair matching method. This method was applied to engine movement analysis on running of actual vehicle, and the displacement were good agreement with the result measured by laser measurement system. 9437106 CFD In-Cylinder Flow Simulation of a Engine and the Flow Visualization Hisato Hori, Tadao Ogawa, Toshihiko Kuriyama (DAIHATSU MOTOR CO., LTD), pp. 117-120, 9 figs., 1 table, 10 refs. Multi-dimensional transient scavenging flow simulation of schnule scavenged two-stroke engine has been carried out with condition. This paper presents the differences of the flow characteristics between crank case compression and roots blower motoring scavenging, obtained by different initial and boundary conditions of scavenging pressure. And the influence of scavenging port's slant angle are shown by using CFD ',isualization technique.
9437061 Study of Fuel Composition Sensor: Fuel Vapor Pressure Sensor with Measuring The Cavitation Number Takashi Sasaki,
9437115 Development of Totally Supported Lab. Automation System for Engine Evaluation Testings (Part 2): Measurement and Analysis of Large Transient Data at Chassis Dynamo Lab. Junichi
Wataru Hamada (Honda R&D Co., Ltd.). pp. 101-104, 14 figs., 2 tables, 8 refs.
Kako, Yoshiki Tachiiri, Takeshi Hiramatu, Toshinari Nagai (Toyota Motor Corporation), pp. 121-124, 9 figs., 1 table, 1 ref.
This paper describes a simple approach to reduce the vibration. The natural frequencies of the mirror were decided by means of the combination of experimental Modal Analysis with Modal Analysis applied Finite Element Method (FEM). The calculation of amplitudes of thc main components agreed well with experimental ones. Authors show the process of improving the vibration of the inner mirror using this method.
9437016 The Study on Application of High Damping Adhesive to Body Joining Locations Hideki Fukudome, Kazuyuki Nakazato, Yoshihiro Aoi (Mitsubishi Motors Corporation), pp. 81-84, 12 figs., 4 tables. We have developed a new structural adhesive to improve the damping properties compared with current structural adhesives. This adhesive is applied to joining locations of body structural panels in passenger vehicles, and can reduce significantly noise and vibration from body structure. We also established effective application technique for the developed adhesive to maximize its damping performance. Lean Burn Engine Management System and its Distinctive Kunitomo Minamitani, Tetsushi Hosokai, Futoshi Nishioka. Yasuyoshi Hori, Hideshi Terao, Hideyuki Nishi (Mazda Motor Corporation), pp. 85-88, 9 figs., 1 table, 2 refs. A new 1.5 liter 4valve DOHC lean burn engine has been developed. For this engine, an all new engine management system was specially developed for dramatically improving driveability and fuel economy. This was achieved by getting the most out of its exhaust after treatment performance using the special three-way-catalyst for lean burn and the internal combustion characteristics. This paper introduces the overview of the features on this new control system. In addition, the techniques particularly used in this system for improving driveability and reducing fuel consumption are focused in detail. 9437025
Feature
Development of a new idle speed control strategy " F u e l leading t y p e " Masaru Kurihara, Masanori lgarasi, Ryuji Kataoka (Sub-
9437034
aru Research Center Co., LTD.), pp. 89-91, q figs. A new idle control strategy for multi point fuel injection engines was developed. Firstly, the mass of fuel to be injected is determined by calculation based upon the idle speed. Secondly, the "idle speed control valve" is actuated to make the engine induct correct air mass to maintain the desired air/fuel ratio. To calculate the requirement of ISC valve actuation, mathematical model of the air flow in the intake system is used. Experimental results showed that target idle speed was maintained very well despite severe disturbance.
Development of Electronic EGR Control System for Gasoline Engine: Part 2: Study on Control Accuracy and Specific fuel consumption Mamoru Fujieda, Nobuo Kurihara, Seiji Asano (Hitachi. 9437043
i.t.d.), pp. 93-96, 12 figs., 1 table, 2 refs. The object of this study is to develop an electronic EGR control system which can reduce fuel consumption and NOx emission for gasoline engine. Effects of the control method and the actuator characteristics on EGR control were clarified using EGR simulator and gasoline engine.
9437052 Measuring Spark Plugs with Integrated Cylinder Pressure Sensor Rolf H. Kuratle (Kistler lnstrumente AG Winterthur), Tamaki Minoyama (Kistler Japan Co., Ltd.), pp. 97-100. 9 figs., 2 tables, 7 refs. The development history of an instrumented spark plug with pressure sensor is presented. The principle investigations are concerned with the oscillations in the pipe and different amplifier types for the sensor. The measuring spark plug is qualified with engine measurements. Both, the thermodynamic optimisation of the combustion process, as well as the engine calibration are discussed.
105
It is generally known that fuel volatility considerably influence driveability and composition of exhaust gas. Recently many papers have clarified the relation between the influence and fuel volatility of such at T10, T50, RVP. Those papers suggest that detection of fuel volatility is very useful for engine control system. So we have studied the fuel w~latility sensor paying attention to correlation between cavitation number and vapor pressure. This paper describes the development of a Fuel Composition Sensor with the long orifice for forming cavitation and the photocoupler for detecting the cavitation events. New I n s t r u m e n t to Measure the Compression Ratio of Automobile Engines by Pressure Variation Method: First report: Measurement principle Akio Takamura, Susumu Fukusima, Kazuo 9437070
Makishima (Ono Sokki Co., Ltd), pp. 105-108, 10 figs., 1 table, 6 refs. A new method to measure accurately the compression ratio of automobile engines was proposed. Air in the compression space of a cylinder is compressed sinusoidaly by a piston with a certain small volume, and the volume of compression space can be determined by detecting the pressure change. In this report, the principle of the method is described and effects of geometry of the chamber and others on the accuracy were discussed. Theoretical and experimental analysis showed that the polytropic index depends on the volume/surface ratio of the chamber.
9437089 Study on Digital Filtering Technology of Crank Speed Measurement: Design of Digital Filter to Detect Misfire in Internal Combustion Engine at High Speed Revolution Shigetaka Kuroda, Yuichi Shimasaki, Akihiro Yamato (HONDA R&D Co., LTD), Hisashi lgarashi, Shigeru Maruyama (HONDA R&D Co., LTD), Takao Asaka (YOKOGAWA EKECTRIC Corp.), pp. 109-112, 11 figs., 1 table, 4 refs. A technology has been established which extracts a wave representing a certain frequency targeted from various frequencies of the crankshaft rotation signal in the internal combustion engine. A digital filter plays an important role in this new technology. This technology, then, has made it possible to detect misfire and roughness of internal combustion engine at high speed revolution.
9437098 Development of Three-Dimensional Displacement Measurement Method Using CCD cameras Seiichi Matumoto, Yasuhiko Miwata, Tohru Kuwabata (Toyota Motor Corp.), pp. 113-116, 13 figs., 2 refs. In order to measure the displacement of moving parts in a vehicle without difficulty, three-dimensional displacement measurement method has been developed. Processing order, the first, image processing system calculates center of gravity of spherical luminous target mark that is photographed. Next, three-dimensional displacement was calculated with initial position of cameras and target marks measured before photographing, displacement of center of gravity by stereo pair matching method. This method was applied to engine movement analysis on running of actual vehicle, and the displacement were good agreement with the result measured by laser measurement system. 9437106 CFD In-Cylinder Flow Simulation of a Engine and the Flow Visualization Hisato Hori, Tadao Ogawa, Toshihiko Kuriyama (DAIHATSU MOTOR CO., LTD), pp. 117-120, 9 figs., 1 table, 10 refs. Multi-dimensional transient scavenging flow simulation of schnule scavenged two-stroke engine has been carried out with condition. This paper presents the differences of the flow characteristics between crank case compression and roots blower motoring scavenging, obtained by different initial and boundary conditions of scavenging pressure. And the influence of scavenging port's slant angle are shown by using CFD ',isualization technique.
9437061 Study of Fuel Composition Sensor: Fuel Vapor Pressure Sensor with Measuring The Cavitation Number Takashi Sasaki,
9437115 Development of Totally Supported Lab. Automation System for Engine Evaluation Testings (Part 2): Measurement and Analysis of Large Transient Data at Chassis Dynamo Lab. Junichi
Wataru Hamada (Honda R&D Co., Ltd.). pp. 101-104, 14 figs., 2 tables, 8 refs.
Kako, Yoshiki Tachiiri, Takeshi Hiramatu, Toshinari Nagai (Toyota Motor Corporation), pp. 121-124, 9 figs., 1 table, 1 ref.