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1. 发明专利

JP2002195080A AIR-FUEL RATIO CONTROL DEVICE OF INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JP2002195080A
公开(公告)日：2002-07-10
申请号：JP2000395477
申请日：2000-12-26
申请人： TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV
发明人： KATAYAMA AKIHIRO , NAGAI TOSHINARI , KAMOTO AKIRA , KATO NAOTO , BABA NAOKI , KOJIMA SHINJI
IPC分类号： F02D45/00 , F01N3/20 , F01N3/24 , F01N13/02 , F01N13/04 , F02D41/02 , F02D41/14
摘要： PROBLEM TO BE SOLVED: To provide an air-fuel ratio control device of an internal-combustion engine for controlling the air-fuel ratio for improving purifying efficiency of exhaust gas, by effectively using oxygen storage capacity of an exhaust emission control catalyst. SOLUTION: This air-fuel ratio control device has oxygen storage quantity estimating means 18 and 25 for estimating oxygen storage quantity of the exhaust emission control catalyst 19, on the basis of a history of oxygen storage release quantity, and air-fuel ratio control means 5, 13 and 18 for controlling the air-fuel ratio, on the basis of the oxygen storage quantity estimated by the oxygen storage quantity estimating means 18 and 25. The oxygen storage quantity estimating means 18 and 25 divide the exhaust emission control catalyst into plural areas in the flowing direction of the exhaust gas, and estimate the oxygen storage quantity of a specific area from behavior of the upstream downstream side exhaust gas of the respective areas. The air-fuel ratio control means 5, 13 and 18 control the air-fuel ratio, on the basis of the estimated oxygen storage quantity of the specific area.

2. 发明专利

JP2000110565A SUPPRESSING METHOD OF LOCAL SELF-IGNITION IN COMPRESSION IGNITION TYPE INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2000110565A
公开(公告)日：2000-04-18
申请号：JP28104798
申请日：1998-10-02
申请人： TOYOTA CENTRAL RES & DEV
发明人： KOJIMA SHINJI , KATSUMI NORIKAZU
IPC分类号： F02B1/14 , F02B3/06 , F02B75/02 , F02D13/02 , F02D15/02
摘要： PROBLEM TO BE SOLVED: To generate hot flame in substantially the whole area of a combustion chamber to suppress the local self-ignition by providing a stroke of compressing the air-fuel mixture in the combustion chamber to the extend generating cold frame, but not generating hot flame and a stroke of expanding the compressed air-fuel mixture. SOLUTION: A piston 2 fitted to a cylinder comprises a short cylindrical piston top part 4 having a top plate, and a camshaft 5 is supported within a piston skirt 3. The circumferential surface of a cam 6 integrated with the camshaft 5 is brought into contact with the top plate lower surface of the piston top part 4 to raise and lower the piston top part 4 to the piston skirt 3 by the oration of the camshaft 5. The camshaft 5 is interlockingly rotated through mining belt transmitting mechanisms 19, 21-23 by the rotation of a crankshaft 10. According to this, a stroke of compressing the air-fuel mixture in a combustion chamber to the extend not generating hot flame and a stroke of expanding the compressed air-fuel mixture are executed to prevent the local self-ignition.

3. 发明专利

JPH10306726A COMBUSTION CHAMBER STRUCTURE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH10306726A
公开(公告)日：1998-11-17
申请号：JP11895097
申请日：1997-05-09
申请人： TOYOTA CENTRAL RES & DEV
发明人： KOJIMA SHINJI , MIYAGAWA HIROSHI , KATSUMI NORIKAZU
IPC分类号： F02B23/06 , F02B23/08 , F02F3/28
摘要： PROBLEM TO BE SOLVED: To promote the flame propagation and/or combustion, suppress knocking and enhance thermal efficiency. SOLUTION: In a combustion chamber for an internal combustion engine in which a flame band 10 caused by combustion of an air-fuel mixture is propagated from a flame kernel producing position at the center toward the periphery part and an expanded flow of an unburned air-fuel mixture is produced in front of the flame band 10 by expansion caused by the combustion of the air-fuel mixture, projections 6 are formed at the periphery part. Part of the expanded flow of the unburned air-fuel mixture collides against the projection 6, and the remainder of the expanded flow passes over the tip of the projection 6 to be sheared off. The expanded flow colliding against the inner face 7 of the projection 6 flows at the inner face 7 of the projection 6 toward the tip of the projection 6, flows toward the outer face 8 of the projection 6 beyond the tip of the projection 6, and finally, is separated from the outer face 8 of the projection 6.

4. 发明专利

JPS63248910A NITROGEN OXIDE REDUCING METHOD AND DEVICE THEREFOR IN INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS63248910A
公开(公告)日：1988-10-17
申请号：JP8208087
申请日：1987-04-02
申请人： TOYOTA CENTRAL RES & DEV
发明人： OSHIMA YUJIRO , AOYAMA TARO , YAMAZAKI SATORU , KOJIMA SHINJI
IPC分类号： F02B3/00 , F02B3/06 , F02B15/00 , F02M61/14
摘要： PURPOSE:To decrease nitrogen oxide, by injecting preset quantity of fuel during preset stroke of an internal combustion engine, and after that, injecting preset quantity of fuel moreover, for reducing nitrogen oxide generated by combustion, through thermal decomposition of fuel. CONSTITUTION:An internal combustion engine, such as a Diesel engine E1 is formed with a recession 4 on a piston 3, and this recession 4, a cylinder head 1 and a cylinder block 7 from a main combustion chamber 5. This main combustion chamber 5 is connected to a whirl chamber 2, through a connecting hole 6. In this case, the Diesel engine E1 is formed with a pump 10 for re-injection besides a pump 9 for main injection, to perform re-injection of very small quantity of fuel, after main injection by an injection nozzle 8 is finished, and these pumps 9, 10 are connected to a pump drive shaft 12. With this device, nitrogen oxide generated by combustion, is reduced by thermal decomposition of fuel, and consequently, nitrogen oxide is decreased.

5. 发明专利

JP2004169607A Control device for internal combustion engine 审中-公开
公开(公告)号：JP2004169607A
公开(公告)日：2004-06-17
申请号：JP2002335716
申请日：2002-11-19
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： KATAYAMA AKIHIRO , NAGAI TOSHINARI , KATO NAOTO , KOJIMA SHINJI , BABA NAOKI
IPC分类号： F02D45/00 , F01N3/00 , F01N3/20 , F01N3/24 , F02D41/14
摘要： PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine with improved estimation precision of a mathematical model when the control device grasps the state of an exhaust emission control catalyst using the mathematical model and controls the internal combustion engine based on the state of the catalyst. SOLUTION: The control device is equipped with an estimation means for estimating an emission amount of specific components inside and downstream of the exhaust emission control catalyst according to the mathematical model based on an exhaust air-fuel ratio (or an emission amount of specific components) on the downstream side of the exhaust emission control catalyst, a specific component detecting sensor positioned on the downstream side of the exhaust emission control catalyst, and a rich/lean setting means for forcedly vibrating the exhaust air-fuel ratio on the downstream side of the exhaust emission control catalyst into a rich side and a lean side. The estimation means calculates a constant of the mathematical model based on the result detected by the specific component detecting sensor while forcedly vibrating the exhaust air-fuel ratio by the rich/lean setting means, and calculates an estimation value by the mathematical model using the calculated constant. COPYRIGHT: (C)2004,JPO

6. 发明专利

JPH09209740A REACTOR, AND ITS EVALUATION METHOD AND DEVICE 失效
公开(公告)号：JPH09209740A
公开(公告)日：1997-08-12
申请号：JP33286796
申请日：1996-11-27
申请人： TOYOTA CENTRAL RES & DEV
发明人： KOJIMA SHINJI , MATSUNAGA SHINICHI , BABA NAOKI
IPC分类号： G01N33/00 , B01D53/86 , F01N3/00
摘要： PROBLEM TO BE SOLVED: To provide a method and device for evaluating a reactor of a catalytic converter for treating exhaust gas. SOLUTION: The reaction efficiency of a reactive members measured in a flow reaction part 1 under a prescribed composition, flow, temperature, and pressure of multiple fluids, and a reaction model is prepared in a reaction model part 2 using the data on the composition, flow, temperature, and pressure of the fluids and the data on the reaction efficiency of the reactive member. Also an efficiency predictive detection part 3 calculates the efficiency as a reactor using, as the input data, the physical properties of the reactor model, reactor members, and those reactor materials excluding the reactor members and the design specifications of the reactor. Based on the results this obtained, an optimization evaluation part 4 selects efficiently and accurately the specifications of the reactor and the materials of the reactor members and reactor which are mostly suitable for the application and purpose of the reactor.

7. 发明专利

JPH05149877A VISUALIZATION OF MIXTURE GAS OF GASOLINE FUEL 失效
公开(公告)号：JPH05149877A
公开(公告)日：1993-06-15
申请号：JP34242291
申请日：1991-11-30
申请人： TOYOTA MOTOR CORP , TOYOTA CENTRAL RES & DEV
发明人： SHIMIZU RIOU , FURUNO SHIGEO , KOJIMA SHINJI , MURAYAMA MOTOHIDE
IPC分类号： G01N21/64 , F02D19/08 , G01N33/22
摘要： PURPOSE:To visualize gasification performance of gasoline by forming a gasoline mixture with air after addition of an N, N-dimethylaniline and naphtalene to the gasoline, by casting ultraviolet laser to the mixture gas and by taking separately photos of fluorescence, emitted from both gas phase and liquid phase thereof. CONSTITUTION:In this invention, ordinary gasoline and additives on the market are used but characteristic of the additives such as purity thereof is selected so as to enable visulalized measurement thereof which is the purpose of this invention. Wave length of ultraviolet laser is also selected to be shorter one than that of fluorescence of the additives. To photograph separately the fluorescence generated from both of gas phase and liquid phase thereof, optical filters through which only the fluorescence from the gas phase or the liquid phase can pass, are set in front of a camera. The gasoline is put into an optical cell after addition of the additives, the ultraviolet laser is radiated and then the liquid phase fluorescence is measured by a spectrometer and a light detector. Furthermore, the gas phase fluorescence is measured, too. As the result thereof, a longitudinal axis in the Figure shows wave length thereof and a vertical axis thereof shows relative strength of the fluorescence, respectively. Both fluorescence peaks from the gas phase and the liquid phase are apparently separated in the Figure.

8. 发明专利

JPH05139887A METHOD AND DEVICE FOR PRODUCING DIAMOND FILM 失效
公开(公告)号：JPH05139887A
公开(公告)日：1993-06-08
申请号：JP18939391
申请日：1991-07-02
申请人： TOYOTA CENTRAL RES & DEV
发明人： MURAYAMA MOTOHIDE , KOJIMA SHINJI , OSAWA KATSUYUKI , NODA MASAHARU , UCHIDA KIYOSHI
IPC分类号： C30B29/04
摘要： PURPOSE:To produce an uniform diamond film by forming an imperfect combustion region in a flat disk state on the surface of a substrate and covering the outer periphery of the imperfect combustion region with an outer shielding gas flow. CONSTITUTION:The reaction gas of a raw material is charged from the lower part, slowed with a cylindrical defuser, straightened in a damping chamber 6 having several stage wire nets for straightening the gas flow, and subsequently extruded from a main nozzle 1. The main nozzle 1 is cylindrical and has an opening at the center of the tip. The combustion gas of the raw material is blown out and burnt to form an inner flame 9. A sub-nozzle 2 is opened in a ring state on the circumferential surface of the main nozzle 1, and an outer circumference-shielding gas flow 8 covering the circumference of the main flow 10 is formed. Thereby, the concentration of the produced active species in a feather 7 is uniformized and an uniform diamond film can be produced.

9. 发明专利

JP2007127004A State quantity estimation device of internal combustion engine, control device of internal combustion engine, and method of estimating state amount of internal combustion engine 审中-公开
标题翻译：内燃机状态估计装置，内燃机控制装置及内燃机状态估算方法
公开(公告)号：JP2007127004A
公开(公告)日：2007-05-24
申请号：JP2005318869
申请日：2005-11-01
申请人： Toyota Central Res & Dev Lab Inc , 株式会社豊田中央研究所
发明人： KOJIMA SHINJI
IPC分类号： F02D45/00 , F02D41/02 , F02D41/18 , F02D43/00 , F02P5/152 , F02P5/153
摘要： PROBLEM TO BE SOLVED: To easily and accurately estimate the state quantity of an internal combustion engine. SOLUTION: An in-cylinder temperature correction part 62 sets a temporary in-cylinder temperature T IVC when an intake valve is closed and corrects the temporary in-cylinder temperature T IVC . An NOx concentration estimating part 64 estimates an NOx concentration ζ 0 in exhaust gases by using an NOx concentration estimation model according to the histories of the temporary in-cylinder temperature T IVC when the intake valve is closed and the detected pressure p of in-cylinder gases. The in-cylinder temperature correction part 62 so corrects the temporary in-cylinder temperature T IVC when the intake valve is closed that the absolute value of the deviation Δζ between the estimated concentration ζ 0 of NOx and the detected concentration ζ is reduced. An in-cylinder temperature estimation part 52 estimates the temporary in-cylinder temperature T IVC when the absolute value of the deviation Δζ between the estimated concentration ζ 0 of NOx and the detected concentration ζ is equal to or less than a set amount as an estimated in-cylinder temperature when the intake valve is closed. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了容易且准确地估计内燃机的状态量。解决方案：当进气门关闭时，缸内温度校正部62设定临时缸内温度T IVC ，并校正临时缸内温度T IVC < SB>。 NOx浓度估计部64通过使用根据临时缸内温度T IVC 的历史的NOx浓度估计模型来估计排气中的NOx浓度ζ 0 进气门关闭并检测缸内气体的压力p。缸内温度校正部62在进气门关闭时校正临时缸内温度T IVC ，推定浓度ζ 0 < SB>，并检测浓度ζ降低。当NOx的估计浓度ζ 0 与检测到的NOx之间的偏差Δζ的绝对值的绝对值时，缸内温度估计部52估计临时缸内温度T IVC 浓度ζ等于或小于作为进气门关闭时的估计缸内温度的设定量。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2007332934A Optimal ignition timing setting method of spark ignition internal combustion engine and optimal ignition timing setting device of spark ignition internal combustion engine 审中-公开
标题翻译：火花点火内燃机的最佳点火时间设定方法及最佳点火时间设定火花点火内燃机的设备
公开(公告)号：JP2007332934A
公开(公告)日：2007-12-27
申请号：JP2006169002
申请日：2006-06-19
申请人： Toyota Central Res & Dev Lab Inc , 株式会社豊田中央研究所
发明人： JINBO TOMOHIKO , KOJIMA SHINJI
IPC分类号： F02P5/152 , F02D45/00 , F02P5/153
CPC分类号： Y02T10/46
摘要： PROBLEM TO BE SOLVED: To set the optimal ignition timing of a spark ignition internal combustion engine of reflecting an operation condition and an operation state of an internal combustion engine. SOLUTION: This method for determining the optimal ignition timing, delays the ignition timing little by little from an initial value SA 1 (S10 and S12), and determines an average indicator characteristic curve and torque τ in its ignition timing advance angle by performing combustion simulation (S14), and determines whether or not knocking is caused by using an ignition timing predicting technique (S16 and S18), and sets the optimal ignition timing (S22) by the limit ignition timing of causing the knocking. Here, the ignition timing predicting technique (S16) starts the average indicator characteristic curve calculated by the combustion simulation, and predicts the existence of the occurrence of knocking on its ignition timing, by using a cycle variation mode, a self-ignition predicting model and a knock determining value variation model. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：设置反映操作状态和内燃机的操作状态的火花点火式内燃机的最佳点火正时。解决方案：用于确定最佳点火正时的方法，使点火正时从初始值SA 1（S10和S12）逐渐延迟，并确定平均指标特性曲线和转矩τ 通过进行燃烧模拟（S14）的点火正时提前角（S14），判断是否使用点火正时预测技术引起了爆震（S16和S18），并将最佳点火正时（S22）设定为极限点火正时引起敲门声。这里，点火正时预测技术（S16）开始通过燃烧模拟计算的平均指标特性曲线，并且通过使用循环变化模式，自点火预测模型来预测其点火正时发生的发生的存在，爆震判定值变异模型。版权所有（C）2008，JPO＆INPIT

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