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1. 发明专利

JP2008107098A Fuel property detection device 有权
标题翻译：燃油特性检测装置
公开(公告)号：JP2008107098A
公开(公告)日：2008-05-08
申请号：JP2006287597
申请日：2006-10-23
申请人： Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社日本自動車部品総合研究所
发明人： OOSAKI RIE , KATAOKA TAKUMI , TSUKASAKI YUKIHIRO , TANIGUCHI SATOSHI , ICHINOSE HIROKI , KATO YUICHI , YASUDA AKIO
IPC分类号： G01N21/59 , F02D45/00 , G01N21/41
CPC分类号： G01N21/43
摘要： PROBLEM TO BE SOLVED: To provide a fuel property detection device capable of detecting both an index correlated with an alcohol concentration in a fuel including alcohol and an index correlated with a fuel density, accurately with a small and simple constitution, and having excellent durability and reliability. SOLUTION: A fuel property sensor 22 is equipped with an LED 46 and a PD 48 as light emission and reception parts for detecting the alcohol concentration in the fuel. The alcohol concentration can be determined from a light transmittance of the fuel detected by the LED 46 and the PD 48. The fuel property sensor 22 is also equipped with the light emission and reception parts for detecting the density (degree of heaviness) of a hydrocarbon fuel included in the fuel. The density of the hydrocarbon fuel included in the fuel can be determined from a refractive index of the fuel detected by the light emission and reception parts. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种燃料特性检测装置，其能够以简单的结构准确地检测包括醇的燃料中的醇浓度和与燃料密度相关的指标的指标，并且具有出色的耐用性和可靠性。解决方案：燃料特性传感器22配备有作为用于检测燃料中的酒精浓度的发光和接收部件的LED 46和PD 48。可以从由LED 46和PD 48检测到的燃料的透光率来确定醇浓度。燃料特性传感器22还配备有用于检测碳氢化合物的密度（重度）的发光和接收部分燃料中包含的燃料。包含在燃料中的烃燃料的密度可以由发光和接收部分检测到的燃料的折射率确定。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JPH1122851A SEALING STRUCTURE FOR VALVE 失效
公开(公告)号：JPH1122851A
公开(公告)日：1999-01-26
申请号：JP19508697
申请日：1997-07-04
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： IIZUKA MOTOMASA , KANEHARA KENJI , KOHAMA TOKIO , YASUDA AKIO
IPC分类号： F16K25/00 , F16K1/36 , F16K31/06
摘要： PROBLEM TO BE SOLVED: To prevent the opening and closing movements of a valve from becoming unstable below freezing point. SOLUTION: In a valve sealing structure in which a valve element part 4 has a sealing member 42 made of an elastic body, which seals the seating surface 5b of a valve seat part 5 when the valve is closed, a material of low water absorption, whose rate of increase in volume is 2.5% or less after it is dipped in 100 deg.C water for 70 hours, is used for the sealing member 42, and a water repellent film 52 of high water repellency is formed on the seating surface 5b, so as to prevent freezing between the sealing member 42 and the seating surface 5b to prevent the sealing member 42 from sticking to the seating surface 5b, thus preventing the opening and closing movements of the valve from becoming unstable.

3. 发明专利

JP2001227380A GAS ENGINE CONTROL DEVICE 失效
公开(公告)号：JP2001227380A
公开(公告)日：2001-08-24
申请号：JP2000039309
申请日：2000-02-17
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： KUSANO SHIGEYUKI , NAKASE YOSHIHIRO , KANEHARA KENJI , YASUDA AKIO , MASUBUCHI MASAHIKO , TANIGUCHI SATOSHI
IPC分类号： F02D19/02 , F02D41/02 , F02D41/06
摘要： PROBLEM TO BE SOLVED: To stably and appropriately start a gas engine even under a low temperature. SOLUTION: This gas engine control device 2 is so constituted that a pressure sensor 22 detects the pressure of an intake pipe 18 in an interval till reaching complete explosion and, when the pressure is lower that a prescribed threshold, an ECU 21 corrects the opening of a throttle valve 19 to an opening side. The intake air quantity is increased when the insufficiency of the intake air quantity is detected by the decrease in the intake pipe pressure caused by the increase in the engine rotation speed, so that the startability is enhanced without feeding the excessive intake air.

4. 发明专利

JPH01216137A DAMPING FORCE VARIABLE TYPE SHOCK ABSORBER 失效
公开(公告)号：JPH01216137A
公开(公告)日：1989-08-30
申请号：JP4015188
申请日：1988-02-23
申请人： NIPPON DENSO CO , NIPPON SOKEN
发明人： YASUDA AKIO , KUROYANAGI MASATOSHI , SUZUKI YUTAKA , MATSUNAGA EIKI , ISHIDA TOSHINOBU
IPC分类号： B60G17/048 , B60G17/015 , B60G17/019 , B60G17/08 , F16F9/46
摘要： PURPOSE:To reduce the dimension of a piezoelectric element by installing a piston member for dividing a cylinder into two hydraulic chambers, piezoelectric body arranged in the piston member, communication passage for the communication between two hydraulic chambers each other, valve seat arranged midway in the communication passage, valve body, and a means for amplifying the shift of the piezoelectric body. CONSTITUTION:When a piezoelectric body 1 is not applied with a voltage, a flow passage 11 and a flow passage 12 are cut off, and the first and second hydraulic chambers 15 and 19 communicate only through the oil passages 20 and 21. Therefore, the resistance of working oil for the shift of a piston 17 increases, and the damping force of a shock absorber increases. When the piezoelectric body 1 is applied with a voltage, said piezoelectric body 1 extends a little, and the oil pressure in a working chamber 5 increases, and the extension distance of the piezoelectric body 1 is amplified according to the ratio between each pressure receiving area of a plunger 6 and a small piston 3, and the small piston 3 is shifted towards a valve body 2, and said valve body 2 is separated from a valve seat 30, and the flow passage 11 and the flow passage 12 communicate each other. Therefore, the flow resistance of working oil is reduced, and the damping force of the shock absorber is reduced.

5. 发明专利

JP2006220010A Fuel injection control device for internal combustion engine 有权
标题翻译：用于内燃机的燃油喷射控制装置
公开(公告)号：JP2006220010A
公开(公告)日：2006-08-24
申请号：JP2005031937
申请日：2005-02-08
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： YASUDA AKIO
IPC分类号： F02D41/04 , F02D19/08 , F02D41/02 , F02D45/00 , F02M21/02
CPC分类号： F02D41/047 , F02D41/0025
摘要： PROBLEM TO BE SOLVED: To make the amount of combustion fuel appropriate immediately after alcohol concentration of fuel is changed, and to maintain an air fuel ratio at a desired value.
SOLUTION: This fuel injection control device for an internal combustion engine in which alcohol and gasoline can be used independently or by mixture as fuel is provided with a vapor pressure detecting means (Step S20) for detecting vapor pressure (evap) of fuel and vapor pressure correcting means (Steps S40, S90, S130, S140) for correcting fuel injection amount based on the detected vapor pressure (evap). In particular, out of the total amount of injected fuel, the amount of fuel adhering to a port wall face etc. and carried over in subsequent cycles relates to vapor pressure of the fuel. Therefore, due to this vapor pressure correction, the amount of combustion fuel immediately after alcohol concentration of fuel is changed can be made appropriate.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了使燃料的酒精浓度之后立即燃烧的燃料量变化，并且将空燃比维持在期望值。解决方案：用于其中可以单独使用醇或汽油或作为混合燃料的内燃机的燃料喷射控制装置设置有用于检测燃料的蒸气压（蒸发）的蒸气压检测装置（步骤S20）和蒸汽压力校正装置（步骤S40，S90，S130，S140），用于基于检测到的蒸汽压力（蒸发）来校正燃料喷射量。特别地，在喷射燃料的总量中，附着在端口壁面等上并在随后的循环中承载的燃料的量与燃料的蒸汽压有关。因此，由于该蒸汽压力校正，燃料的酒精浓度变化之后立即燃烧燃料量变化。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2005233135A Multi-fuel engine 审中-公开
标题翻译：多功能发动机
公开(公告)号：JP2005233135A
公开(公告)日：2005-09-02
申请号：JP2004045171
申请日：2004-02-20
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： YASUDA AKIO
IPC分类号： F02D45/00 , F02D19/06 , F02D41/06
CPC分类号： Y02T10/36
摘要： PROBLEM TO BE SOLVED: To speed up a warmup of a catalyst of a multi-fuel engine. SOLUTION: When a condition for executing warmup is met, that is to say, the temperature of the catalyst estimated by the water temperature of an engine is below a reference value for the end of warmup (S20), the gasoline is selected as fuel that has a higher capacity of raising the temperature of the catalyst by an unburned component in comparison with CNG (S30). Since the supply of the gasoline is continued until the condition for executing warmup ceases to be met, the warmup of the catalyst material of a catalyst device can be promoted. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：加速多燃料发动机的催化剂的预热。解决方案：当满足执行预热的条件时，也就是说，由发动机的水温估计的催化剂的温度低于预热结束时的参考值（S20），选择汽油作为与CNG相比，通过未燃烧部件具有提高催化剂的温度的能力的燃料（S30）。由于继续供应汽油，直到不能满足执行预热的条件，所以可以促进催化剂装置的催化剂材料的预热。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2005201178A Multi-fuel engine 审中-公开
标题翻译：多功能发动机
公开(公告)号：JP2005201178A
公开(公告)日：2005-07-28
申请号：JP2004009613
申请日：2004-01-16
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： YASUDA AKIO
IPC分类号： F02B43/00 , F02D19/06 , F02D41/02 , F02D41/06 , F02D45/00 , F02M21/02
CPC分类号： Y02T10/32 , Y02T10/36
摘要： PROBLEM TO BE SOLVED: To reduce operating time by liquid fuel while obtaining excellent startability. SOLUTION: This multi-fuel engine is constituted, in such a manner that liquid fuel is supplied (S30) at start of starting operation (S20) and the supply amount of the liquid fuel reaches the predetermined number of injection (reference value A) corresponding to such predetermined amount that a combustion chamber 105 is sealed. Accordingly, the supply amount of the liquid fuel can be extremely reduced, and emission (exhaust gas characteristics) can be improved. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过液体燃料减少操作时间，同时获得出色的起动性。解决方案：该多燃料发动机以在启动操作开始时提供液体燃料（S30）的方式构成（S20），并且液体燃料的供给量达到预定喷射次数（参考值 A）对应于燃烧室105被密封的预定量。因此，能够极大地降低液体燃料的供给量，能够提高排出（废气特性）。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2005163755A Fault detection device for injector 有权
标题翻译：注射器故障检测装置
公开(公告)号：JP2005163755A
公开(公告)日：2005-06-23
申请号：JP2003407781
申请日：2003-12-05
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： YASUDA AKIO
IPC分类号： F02M21/02 , F02D19/02 , F02D41/22 , F02D45/00 , F02M65/00
CPC分类号： Y02T10/32 , Y02T10/40
摘要： PROBLEM TO BE SOLVED: To provide a fault detection device for an injector capable of detecting a fault such as close adhesion in the injector.
SOLUTION: This fault detection device for the injector for detecting a fault caused in the injector 20 used in an internal combustion engine for gas fuel detects that the fault occurs in the injector based on a characteristic value related to opening and closing operation of the injector in a first condition in which the injector is driven by predetermined driving force and a characteristic value related to opening and closing operation of the injector in a second condition in which driving force of the injector is increased more than in the first condition. When the characteristic value related to the opening and closing operation of the injector is greatly changed (improved) due to increase in driving force of the injector when compared with a condition before driving force of the injector is increased, occurrence of the fault in the injector is detected.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于能够检测诸如喷射器中的紧密附着的故障的喷射器的故障检测装置。解决方案：用于检测在用于燃气燃料的内燃机中使用的喷射器20中引起的故障的喷射器故障检测装置，基于与打开和关闭操作相关的特性值，检测喷射器中发生故障所述喷射器处于其中所述喷射器由预定驱动力驱动的第一状态和与所述喷射器的驱动力比所述第一状态更多的第二状态下与所述喷射器的打开和关闭操作相关的特征值。当与喷射器的驱动力之间的条件相比，由于喷射器的驱动力的增加而与喷射器的打开和关闭操作相关的特征值大大改变（改善）时，喷射器中的故障的发生被检测到。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2003269257A FUEL COMMUNICATION CONTROL METHOD FOR GASEOUS FUEL SUPPLY SYSTEM, AND FUEL LEAKAGE DETECTION METHOD AND APPARATUS FOR GASEOUS FUEL SUPPLY SYSTEM 审中-公开
公开(公告)号：JP2003269257A
公开(公告)日：2003-09-25
申请号：JP2002066830
申请日：2002-03-12
申请人： TOYOTA MOTOR CORP
发明人： YASUDA AKIO
IPC分类号： F02M21/02
摘要： PROBLEM TO BE SOLVED: To secure independence of a gaseous fuel supply system when needed, to allow movement of gaseous fuel between the gaseous fuel supply systems as needed, and to prevent erroneous detection of fuel leakage, in an internal combustion engine in which each gaseous fuel supply system is independently disposed for each cylinder group. SOLUTION: A communicating pipe cutoff valve is disposed to a communicating pipe connecting between gaseous fuel supply systems, and is driven to be opened/closed by an ECU. With a state where the communicating pipe cutoff valve is closed, gaseous fuel supply systems are independent from each other. At that time, since the gaseous fuel supply system from which fuel leaks is identified by fuel leakage detection process, the fuel leakage is dealt with appropriately. Further, when one of vessel main valves are in closing malfunction state ('YES' at S104), the communication pipe cutoff valve is in an open state (S110). Since CNG is moved between the gaseous fuel supply systems, operation of the engine by all cylinders is kept. Thereby, the problem is solved. COPYRIGHT: (C)2003,JPO

10. 发明专利

JP2002235532A EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2002235532A
公开(公告)日：2002-08-23
申请号：JP2001029874
申请日：2001-02-06
申请人： TOYOTA MOTOR CORP
发明人： GONO TAKESHI , TANAKA MASAAKI , AKITA KOICHI , YASUDA AKIO , HASHIMOTO HIROSHIGE , HONDA MITSUYUKI
IPC分类号： F02D45/00 , B01D53/94 , F01N3/02 , F01N3/08 , F01N3/22 , F01N3/24 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine enabling stratified charge combustion and capable of preventing worsening of exhaust emission by supplying secondary air at proper time to keep a bed temperature of catalyst and air-fuel ratio of exhaust air at proper values. SOLUTION: This exhaust emission control device is provided with an NOx storage reduction type three-way catalyst 38 storing nitrogen oxides in exhaust gas in the oxygen-excessive atmosphere, releasing and reducing the stored nitrogen oxides when oxygen concentration is reduced, and having a three-way catalyst function for purifying a toxic substance in the exhaust gas in the vicinity of a stoichiometric air-fuel ratio, a secondary air supply means 25 for supplying secondary air into an exhaust passage on the upstream side of the catalyst 38, and a catalyst bed temperature estimate means 24 for estimating a bed temperature of the catalyst 38 to supply secondary air when a bed temperature of the catalyst 38 exceeds a predetermined temperature during stratified charge combustion operation.

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