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21. 发明专利

JPH0261325A CHARGING EFFICIENCY IMPROVING METHOD FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0261325A
公开(公告)日：1990-03-01
申请号：JP20829088
申请日：1988-08-24
申请人： TOYOTA MOTOR CORP
发明人： MATSUMOTO ISAO , YAMADA TOSHIO
IPC分类号： F02B27/00 , F02B29/08 , F02M35/10
摘要： PURPOSE:To secure high charging efficiency over the whole engine speed range by making an overlap period longer when negative pressure is produced in an exhaust port at time of an overlap of both intake and exhaust valves, and when positive pressure is produced in the said port as well, making this overlap period shorter the other way. CONSTITUTION:A solenoid selector valve 24 is controlled by an electric control unit 30 on the basis of each detection signal out of an air flow meter 17 and an engine speed censor 38, whereby an intake control valve 20 is opened or closed via a diaphragm device 23. With this operation, an overlap period between each of intake valves 7, 8 in a sub-intake port 9 and an intake valve 5 in a main intake port 6 and each of exhaust valves 10, 11 in an exhaust port 12 is adjusted to be longer. When positive pressure is produced in the exhaust port 12 at time of overlapping, the overlap period is made shorter, while this positive pressure is produced in the intake port 6 during valve opening of the intake valve 5. On the other hand, when negative pressure is produced in the exhaust port 12 at time of the overlapping, the overlap period is made longer the other way.

22. 发明专利

JP2002227714A VEHICLE VIBRATION CALCULATING SYSTEM AND VEHICLE VIBRATION CALCULATING METHOD 失效
公开(公告)号：JP2002227714A
公开(公告)日：2002-08-14
申请号：JP2001022124
申请日：2001-01-30
申请人： TOYOTA MOTOR CORP
发明人： FUJITA MASATO , YAMADA TOSHIO , OHATA AKIRA , OHASHI MICHIHIRO
IPC分类号： G01H17/00 , F02D45/00 , G01M7/02 , G01M17/007 , G06F19/00 , G06Q50/00 , G06Q50/04 , G06F17/60
摘要： PROBLEM TO BE SOLVED: To provide vehicle vibration calculating system capable of easily calculating vehicle vibration. SOLUTION: The vehicle vibration calculating system 10 comprises a containing part 12 to contain a plurality of vehicle models describing a relation between engine torque responding to a plurality of respective vehicle attributes and vehicle vibration; a vehicle attribute input part 14 to input a vehicle attribute; a vehicle model extraction part 16 to extract a vehicle model responding to the vehicle attribute inputted by the vehicle attribute input part 14 from a plurality of the vehicle attributes contained in the containing part 12; a vehicle vibration calculating part 18 to calculate vehicle vibration, occurring when prescribed engine torque is inputted, by using a vehicle model extracted by the vehicle model extraction part 16; and a vehicle vibration output part 20 to output vehicle vibration calculated by the vehicle calculating part 18.

23. 发明专利

JP2002161799A DEVICE FOR AND METHOD OF GENERATING CONTROL MODEL, ENGINE AND AIR INTAKE/EXHAUST SYSTEM 失效
公开(公告)号：JP2002161799A
公开(公告)日：2002-06-07
申请号：JP2000359490
申请日：2000-11-27
申请人： TOYOTA MOTOR CORP
发明人： FUJITA MASATO , YAMADA TOSHIO , OHATA AKIRA , OHASHI MICHIHIRO
IPC分类号： F02D45/00 , F02D41/18 , G06F19/00
摘要： PROBLEM TO BE SOLVED: To provide a control model generation device capable of easily generating a highly accurate control model. SOLUTION: The control model generation device 10 is constituted by providing an input part 12 for inputting the three-dimensional figuration and boundary condition of an intake manifold or the like which is a component composing an air intake system, a physical phenomenon estimating part 14 for estimating air flow in the intake system based on the three-dimensional figuration and boundary condition inputted by the input part 12, a control model generation part 16 for generating an intake control model regulating the relation of the opening area of a throttle with an air flow rate passing through the throttle based on the air flow estimated by the physical phenomenon estimating part 14, and a control model output part 18 for outputting the intake control model generated by the control model generation part 16.

24. 发明专利

JPH05332145A INTAKE CONTROLLER OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH05332145A
公开(公告)日：1993-12-14
申请号：JP14411092
申请日：1992-06-04
申请人： TOYOTA MOTOR CORP
发明人： YOSHIMATSU AKIO , YAMADA TOSHIO
IPC分类号： F02B31/00 , F02B31/02
摘要： PURPOSE:To control the reduction of the reduction effect of pumping loss in sucking air and also provide an intake controller capable of keeping the swirl in a cylinder. CONSTITUTION:The actuating quantity Ac of an accelerator pedal 114 and the rotational frequency Ne of an internal combustion engine are input in a control section 120 from a load sensor 115 and a rotational frequency sensor 116 respectively. In the control section 120, the closing time of an intake control valve 112 is determined based on the actual quantity Ac and the rotational frequency Ne. The intake control valve 112 is not fully closed even after the intake control valve 112, is closed and air is supplied, thereby preventing the loss of swirl in a cylinder. Even after the close of the intake control valve, swirl is generated by the air supplied through a bypass passage.

25. 发明专利

JPH0441966A AIR SUPPLY DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0441966A
公开(公告)日：1992-02-12
申请号：JP14851790
申请日：1990-06-08
申请人： TOYOTA MOTOR CORP
发明人： KASHIWAKURA TOSHIMI , MORI KENJI , YAMADA TOSHIO , IWASHITA YOSHIHIRO
IPC分类号： F02B29/08 , F02D33/00 , F02D45/00 , F02M23/04 , F02M23/08
摘要： PURPOSE:To eliminate scattering in torques generated on respective cylinders by correcting an opening time of a control valve by each cylinder in such a manner as to make the pressure of the intake valve constant, thereby making the flow rate of an intake air of each cylinder constant. CONSTITUTION:A control valve 55 operates to control a bypass intake passage for communicating the upper and lower portions of a cut-off valve of each cylinder to each other. The opening time of the control valve 55 is set by valve opening time setting means 54 according to the engine operating state. In such an air supply, the pressure on the upstream side of the cut-off valve is detected by intake pipe pressure detecting means 51. The average value of the detected intake pipe pressures is calculated by average pressure arithmetic means 52. Furthermore, at least before the engine idling, the correcting means 53 operates to correct, by each control valve, the above opening time according to the difference between the above average pressure and each intake pipe pressure.

26. 发明专利

JPS6232265A COOLING WATER PASSAGE STRUCTURE IN CYLINDER HEAD OF INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS6232265A
公开(公告)日：1987-02-12
申请号：JP17069785
申请日：1985-08-02
申请人： TOYOTA MOTOR CORP
发明人： YAMADA TOSHIO , KANDA MUTSUMI
IPC分类号： F02F1/36 , F01P3/02 , F02F1/24 , F02F1/42
摘要： PURPOSE:To efficiently cool a wall surface of a combustion chamber at a knocking point part, by connecting cooling water passages below ports in series with a cooling water passage above the combustion chamber, and permitting a cooling water to flow from the former to the latter to thereby supply a sufficient flow rate of cooling water to a port area. CONSTITUTION:There are independently provided in a cylinder head 2 a lower cooling water passage 13 extending below suction ports 6 and 7 along a row of cylinders, a lower cooling water passage 14 extending below exhaust ports 8 along the row of cylinders, and an upper cooling water passage 15 extending along the row of cylinders in such a manner as to pass through a central portion of a combustion chamber 5 between the suction ports 6 and 7 and the exhaust ports 8 and surround an ignition plug hole. The cylinder head 2 is further provided with a communication hole 17 for supplying a cooling water from a cooling water passage in a cylinder block to an end portion 13a of the lower cooling water passage 13. The water cooling water passages 13, 15 and 14 are connected in series with each other in this order.

27. 发明专利

JPS61218747A FUEL INJECTION QUANTITY CONTROLLER FOR MULTICYLINDER INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS61218747A
公开(公告)日：1986-09-29
申请号：JP5915785
申请日：1985-03-22
申请人： TOYOTA MOTOR CORP
发明人： MORI KENJI , YAMADA TOSHIO
IPC分类号： F02D41/14 , F02D41/00 , F02D41/34 , F02D41/36
摘要： PURPOSE:To permit the control to each different air-fuel ratio for each group by installing a correcting means for obtaining the fuel injection quantity by feedback-correcting the fundamental fuel injection quantity on the basis of the detection signal of an air-fuel ratio sensor. CONSTITUTION:In a correcting means, the fuel injection quantity is obtained by feedback-correcting the fundamental injection quantity on the basis of the detection signal of an air-fuel sensor. In one injection means, injection is carried- out by one group of fuel injection valves 12g. In a lean-state generating means, the fuel injection quantity to the combustion chambers of the other group of cylinders 12b and 12c is set to a precribed rate of the obtained fuel injection quantity. Thus, the air-fuel ratio can be controlled to a different value for each group with the simple constitution.

28. 发明专利

JPS61116038A Fuel injection control method for internal-combustion engine 失效
标题翻译：内燃机燃油喷射控制方法
公开(公告)号：JPS61116038A
公开(公告)日：1986-06-03
申请号：JP23599284
申请日：1984-11-10
申请人： Toyota Motor Corp
发明人： YAMADA TOSHIO , MORI KENJI
IPC分类号： F02D41/02 , F02D41/00 , F02D41/34
摘要： PURPOSE: To reduce production of NOx, by a method wherein, in a device which fuel, providing a lean air-fuel ratio, in injected through a part of injection valves, the fuel is injected through said injection valve between the second stage of an exhaust stroke and a suction stroke, and the fuel is injected through other injection valve between a compression stroke and the first stage of the exhaust stroke.
CONSTITUTION: In a drive in which a fuel injection valve 12 is installed in an intake air branch 11 communicated with an intake air port 5 of each cylinder for 4-cylinder engine, ignition is set in the order of #1, #3, #4, and #2, the #1 and #4 cylinders are set as a lean cylinder which provides a lean air-fuel ratio, and the #3 and #2 cylinders as a stoiki cylinder which provides a value near to a theorectical air-fuel ratio. In this internal-combustion engine, control is effected such that fuel is injected through a fuel injection valve 12 on the lean cylinder side between the second stage of an exhaust stroke and a suction stroke, and the fuel is injected through the fuel injection valve 12 on the stoiki cylinder side during a compression stork and the first stage of the exhaust stroke. This increases a learn combustion limit, and decrease production of NOx.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了减少NOx的生产，通过一种方法，其中在通过一部分注射阀注射的提供贫空燃比的燃料的装置中，燃料通过所述喷射阀在第二级排气冲程和吸入冲程，并且燃料在压缩冲程和排气冲程的第一阶段之间通过其它喷射阀喷射。构成：在与用于4缸发动机的每个气缸的进气口5连通的进气分支11中安装有燃料喷射阀12的驱动器中，点火设定为＃1，＃3，＃ 4和＃2，＃1和＃4气缸被设定为提供贫空燃比的贫缸，而＃3和＃2气缸设置为提供接近理论空气 - 燃料比。在该内燃机中，进行控制，使得在排气冲程的第二级和吸入冲程之间的燃料喷射阀12在贫油缸侧喷射燃料，并且燃料通过燃料喷射阀12喷射在压缩鹳和排气冲程的第一阶段在stoki缸侧。这增加了学习燃烧极限，并降低了NOx的产生。

29. 发明专利

JPS6146427A Suction controller for multicylinder engine 失效
标题翻译：多功能发动机吸油控制器
公开(公告)号：JPS6146427A
公开(公告)日：1986-03-06
申请号：JP16820284
申请日：1984-08-10
申请人： Toyota Motor Corp
发明人： YAMADA TOSHIO , MORI KENJI
IPC分类号： F02D41/02 , F02D33/00 , F02D41/00 , F02D41/14
CPC分类号： F02D33/00 , F02D41/1475
摘要： PURPOSE:To improve the performance of the whole engine by increasing the loading rate of the load of the cylinder having a larger air-fuel ratio set, by increasing the amount of the inhaled air of the cylinder, when cylinders are separated into plural pairs and operated with different air-fuel ratio for different pairs. CONSTITUTION:An engine body 10 is equipped with four cylinders, and one pair 11 consisting of the second and the third cylinders and another pair 12 consisting of the first and the fourth cylinders are installed in different suction systems. In other words, to the cylinders 11 and 12 in different pairs, fuel feeding apparatuses 31 and 32 are connected through different intake manifolds 21 and 22, and each air-fuel ratio of the cylinders 11 and 12 in different pair can be set independently. In this case, throttle bodies 41 and 42 for forming suction passages are installed between the fuel feeding apparatuses 31 and 32 and the intake manifolds 21 and 22, respectively. Further, the bore diameter of the throttle body 41 on the pair 11 side consisting of the second and the third cylinders having a lean air-fuel ratio set is set larger.
摘要翻译：目的：为了提高整个发动机的性能，通过增加设定较大空燃比的气缸的负载量，通过增加气缸的吸入空气量，当气缸分离成多对时，对于不同的对，以不同的空燃比运行。构成：发动机主体10配备有四个气缸，一对11由第二和第三气缸构成，另一对12由第一和第四气缸组成，安装在不同的吸气系统中。换句话说，对于不同对的气缸11和12，燃料供给装置31和32通过不同的进气歧管21和22连接，并且可以独立地设置不同对中的气缸11和12的每个空燃比。在这种情况下，用于形成吸入通道的节流阀体41,42分别安装在燃料供给装置31,32与进气歧管21,22之间。此外，由具有稀空燃比设定的第二和第三气缸组成的一对11侧的节气门体41的孔径设定得较大。

30. 发明专利

JPH04358720A INTAKE DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH04358720A
公开(公告)日：1992-12-11
申请号：JP13427391
申请日：1991-06-05
申请人： TOYOTA MOTOR CORP
发明人： KUBOTA HIROBUMI , YOSHIMATSU AKIO , YAMADA TOSHIO
IPC分类号： F02B29/08 , F02D9/02
摘要： PURPOSE:To improve combustion by increasing the temperature of the air fuel mixture in a cylinder, and thereby reducing loss of a pump so as to improve sufficiently fuel consumption. CONSTITUTION:An intake air amount is controlled by controlling the opening time of an intake control valve 11. The overlap period of an intake/exhaust valve is determined so that previously burned gas in a cylinder chamber 3 can make reverse flow into an intake port 4. In an engine operating range in which an air fuel mixture temperature just before ignition is lowered by closing the intake control valve 11 in an early stage, resulting in deterioration of combustion condition, the intake control valve 11 is set in opening valve condition for a period which is determined beforehand in the first half of overlap period, and the previously burned gas is forced to make reverse flow into the intake branch pipe 8 located upstream of the intake control valve 11 so as to heat intake air. After that, the intake control valve 11 is opened again for the period which is determined beforehand during an intake valve 6 opening period so as to suck heated intake air into the cylinder chamber 3.

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