公开(公告)号：JPS59183042A

公开(公告)日：1984-10-18

申请号：JP5896683

申请日：1983-04-04

Applicant: Toyota Motor Corp

Inventor： FUKUYAMA TADASHI

IPC: F02D41/04 ,  F02B3/06 ,  F02D1/02 ,  F02D41/38

CPC classification number: F02D41/38 ,  F02B3/06

Abstract: PURPOSE:To control the operation of a diesel engine according to the thermal load, by changing the maximum injection quantity of fuel according to the operational conditions of the engine. CONSTITUTION:A basic quantity Q of intake air is obtained by a CPU68L from the output signal of an engine-speed sensor 76, and the quantity Q of intake air is detected by correcting the basic quantity Q according to the outputs of various sensors. The positions of a spill ring and a linear solenoid are controlled according to the basic quantity Q. By controlling the position of the linear solenoid, the stop position of a tension lever of a fuel injection pump which determines the injection quantity of fuel at the time of full-load operation of the engine is changed. Thus, it is enabled to change the maximum injection quantity of fuel according to the operational conditions of the engine.

Abstract translation: 目的：通过根据发动机的运行状况改变燃油的最大喷射量，根据热负荷控制柴油发动机的运行。 构成：通过CPU68L从发动机速度传感器76的输出信号获得进气的基本量Q，并且通过根据各种传感器的输出校正基本量Q来检测进气量Q。 根据基本量Q控制溢流环和线性螺线管的位置。通过控制线性螺线管的位置，确定燃料喷射量的燃油喷射泵的张力杆的停止位置 发动机的全负荷运转发生了变化。 因此，能够根据发动机的运转条件改变燃料的最大喷射量。

公开(公告)号：JPH06346739A

公开(公告)日：1994-12-20

申请号：JP14065993

申请日：1993-06-11

Applicant: TOYOTA MOTOR CORP

Inventor： FUKUYAMA TADASHI

IPC: F02B25/14 ,  F02B25/20 ,  F02B75/02

Abstract: PURPOSE:To scavenge burnt gas existing in a combustion chamber by preventing the outflow of the fresh air from an exhaust opening covered with a masking wall, while the opening being formed at the opposite side of an intake valve and covered with the masking wall. CONSTITUTION:Exhaust valves 9 to 11 are arranged in the vicinity of one side of a cylinder head inner wall 3a, while intake valves 12 to 14 arranged in the vicinity of the other side of the wall 3a. In this case, the inflow of the fresh air from the openings of the valves 12 to 14 formed at the side of the valves 9 to 11 is prevented, while the fresh air flowing from the openings of the intake valves 12 and 13 formed at the opposite side of the exhaust valves 9 to 11 is made to flow down along the inner wall of cylinder bore under the intake valves 12 and 13. The exhaust valves 9 to 11 are respectively provided with masking walls 18 to 20. As a result, the fresh air rising along the inner wall of the cylinder bore under the exhaust valves 9 to 11 can be prevented from blowing into an exhaust port 33 through each opening of the exhaust valves 9 to 11 positioned at the opposite side of the intake valves 12 to 14.

公开(公告)号：JPH05340252A

公开(公告)日：1993-12-21

申请号：JP14599492

申请日：1992-06-05

Applicant: TOYOTA MOTOR CORP

Inventor： UMEHANA TOYOICHI ,  FUKUYAMA TADASHI ,  SATO TAKESHI ,  NAKAE KOICHI

IPC: F02B25/16 ,  F02B75/02

Abstract: PURPOSE:To scavenge the whole space inside a combustion chamber in a two-cycle engine. CONSTITUTION:Three exhaust valves 9, 10, 11 are arranged on one side of the inner wall face 3a of a cylinder head, and two intake valves 12, 13 are arranged on the other side of the inner face 3a of the cylinder head. Additionally, one intake valve 14 is arranged in the central area of the inner wall face 3a of the cylinder head. Openings of the respective intake valves 12, 13, 14 formed on the exhaust valves 9, 10, 11 side are covered by mask walls 16, 19, 22. The valve opening timing of the intake valve 14 is delayed the valve opening timings of the intake valves 12, 13. The peripheral part of the combustion chamber is scavenged by the fresh air which flows in from the intake valves 12, 13, and the central are of the combustion chamber is scavenged by the fresh air which flows in from the intake valve 14.

公开(公告)号：JPH05133227A

公开(公告)日：1993-05-28

申请号：JP29274091

申请日：1991-11-08

Applicant: TOYOTA MOTOR CORP

Inventor： UMEHANA TOYOICHI ,  NAKAMURA NORIHIKO ,  FUKUYAMA TADASHI ,  SATO TAKESHI ,  NAKAE KOICHI

IPC: F01L1/38 ,  F02B1/04 ,  F02B3/06 ,  F02B19/08 ,  F02B23/00 ,  F02B25/14 ,  F02B25/26 ,  F02B75/02 ,  F02F1/24 ,  F02F1/42

Abstract: PURPOSE:To satisfactorily scavenge the whole interior of a combustion chamber by providing an additional air supply valve at the central part of the inside wall of a cylinder head, and supplying new air toward the central part of the interior of the combustion chamber from the additional air supply valve. CONSTITUTION:Three exhaust valves 9-11 are provided at the peripheral part on one side of the inside wall surface 3a of a cylinder heat. Two air intake valves 12, 13 are provided at the peripheral part on the other side of the inside wall 3a of a cylinder. Further, an additional air intake valve 14 is provided at the central part of the inside wall surface 3a of the cylinder heat, and exhaust valves 9, 10 are symmetrically provided with respect to a symmetrical plane K-K including the axial line of the cylinder. Air supply valves 12, 13 are also symmetrically provided with respect to the symmetrical plane K-K. And, the nozzle hole 6 of a subsidiary chamber is provided at the peripheral part of the inside wall surface 3a of the cylinder heat surrounded by three air intake valves 12-14, and further, the exhaust valve 11, the air intake valve 14 and the nozzle hole 6 are provided on the symmetrical plane K-K, thereby burnt gas that exists at the central part of a combustion chamber is scavenged by new air supplied from the additional air intake valve 14.

公开(公告)号：JPH04116223A

公开(公告)日：1992-04-16

申请号：JP23456390

申请日：1990-09-06

Applicant: TOYOTA MOTOR CORP

Inventor： FUKUYAMA TADASHI ,  KAWAGOE MICHIO ,  SATO TAKESHI ,  UMEHANA TOYOICHI ,  NAKAE KOICHI

IPC: F02B19/08 ,  F02B3/06 ,  F02B19/14 ,  F02B23/00 ,  F02B23/02 ,  F02B75/02

Abstract: PURPOSE:To increase an amount of fresh air supplied to a sub-chamber by opening an injection port of the sub-chamber in the vicinity of a cylinder head inner wall surface, being a portion between a pair of intake valves and opposing to an exhaust valve. CONSTITUTION:A par of intake valves 5 are arranged on one side of a cylinder head inner wall surface 3a, while at least one exhaust valve 7 is arranged on the other side of the cylinder head inner wall surface 3a. Openings of the intake valves 5 arranged on the side of the exhaust valve 7 are respectively covered with mask walls 15. An injection port 10 of a sub-chamber is opened in the vicinity of the cylinder head inner wall surface 3a, being a portion between the paired intake valves 5 and opposing to the exhaust valve 7. Combusted gas in the sub-chamber is drawn out by fresh air flowing in from the paired intake valves 5. The fresh air collected below the injection port 10 is fed to the sub-chamber through the injection port 10 during a compression stroke. An amount of fresh air introduced into the sub-chamber is thereby increased.

公开(公告)号：JPH02245479A

公开(公告)日：1990-10-01

申请号：JP6683589

申请日：1989-03-17

Applicant: TOYOTA MOTOR CORP

Inventor： KAWAGOE MICHIO ,  FUKUYAMA TADASHI ,  KAMOSHITA SHINJI ,  NAKAMURA NORIHIKO

IPC: F02P19/02

Abstract: PURPOSE:To make effective use of power source energy by employing means for prohibiting re-energization of a sel-control type glow plug having a heat generating section and an energization restricting section until a specified period of time elapses after the completion of a first energization. CONSTITUTION:A self-control type flow plug 20 provided with a first resistor 20a fixed to a combustion chamber and with a second resistor 20b having a positive temperature constant greater than that of the first resistor is energized from a battery 30 via a contact point 10aS of a relay 10a. Energization of the relay 10a is controlled with an energization control device 10. Herewith, the energization control device 10 is constituted with a holding circuit 10b for closing and holding a contact point for a specified period of time T1 from the time when a trigger is inputted, with an integration circuit 10c for integrating the input signals, and with a comparator 10d for comparing two input signals with each other. A switching transistor 10 is actuated with the output of the comparator 10d to control the excited condition of an exciter coil 10aL of the relay 10a.

公开(公告)号：JPS62113840A

公开(公告)日：1987-05-25

申请号：JP25440285

申请日：1985-11-13

Applicant: TOYOTA MOTOR CORP

Inventor： FUKUYAMA TADASHI ,  KAWAGOE MICHIO

IPC: F02D41/14 ,  F02B3/06 ,  F02D41/00 ,  F02D41/40 ,  F02P17/12

Abstract: PURPOSE:To enable adequate injection timing to be continually controlled in no relation to deterioration or the like of an ignition sensor, by equipping an engine with two means, for detecting actual ignition timing of the engine, and changing a correction rate for correcting required ignition timing on the basis of a difference between detection results of these two means. CONSTITUTION:The captioned device detects actual ignition timing in a detecting means M3 from the period when a signal of an ignition sensor M2, additionally provided in an engine M1, exceeds a predetermined threshold value. And the device, in which required ignition timing obtained in a calculating means M5 from an output of an operative condition detecting means M4 is corrected in a correcting means M6 by a predetermined correction rate determined in accordance with said actual ignition timing, controls an ignition timing adjusting part M7 by the required ignition timing after it is corrected. Here the detecting means M3 is constituted of the first and second actual ignition timing detecting means M9, M10, and a difference of detection results of these means is calculated by a difference calculating means M11. And on the basis of this difference, the predetermined correction rate of the correcting means M6 is changed by a correction rate changing means M12.

公开(公告)号：JPS61200351A

公开(公告)日：1986-09-04

申请号：JP4090985

申请日：1985-03-01

Applicant: TOYOTA MOTOR CORP

Inventor： FUKUYAMA TADASHI

IPC: F02D41/14 ,  F02B3/06 ,  F02D41/00 ,  F02D41/40

Abstract: PURPOSE:To prevent performance of an engine from worsening before its occurrence, by enabling the injection timing of fuel to be controlled, even when the actual ignition timing is wrong detected, classifying a content of the wrong detection by a cause due to the atmosphere and due to the stain of an ignition timing sensor. CONSTITUTION:When an engine is in operation, a control unit 62, first obtaining a difference between a target ignition timing and an actual ignition timing, performs a feedback control of fuel injection timing when said difference is in the range of a preset value A. While when the difference is out of said range, the unit 62, successively obtaining a change width of an actual injection timing, similarly performs a feedback control of the injection timing when said change width is in the range of a preset value B. While when out of said range, the unit, measuring a time being out of said range, similarly performs the feedback control of the injection timing also when said measured value is in the range of a preset value C. And when the measured value is out of said range, the control unit performs an open loop control of the fuel injection timing.

公开(公告)号：JPS59101557A

公开(公告)日：1984-06-12

申请号：JP21079682

申请日：1982-11-30

Applicant: Toyota Motor Corp

Inventor： MATSUMOTO SHINICHI ,  FUKUYAMA TADASHI

IPC: F02D41/08 ,  F02D1/02 ,  F02D31/00

CPC classification number: F02D31/004

Abstract: PURPOSE:To surely study the output value of an axle sensor at idle speed operation, by both inhibiting the action of idle up and study calculating an idle position to be stored on the basis of detection data of the output of the axle sensor in the subsequent idle speed condition when a study of the idle position is requested. CONSTITUTION:In case of performing speed increase control of an idle speed, the action of idle up is interrupted to be returned to a normal idle speed. If output voltage Va is below the preceding study value VAib, an arithmetic mean value between the output voltage VA and the preceding study value VAib is calculated, obtaining the new study value VAi to be read in a backup RAM21. In case of the study being processed after disappearance of a content in the backup RAM21, a value slightly larger than the upper limit value in an unevenness range of the output voltage of an axle sensor 5 under the idle speed condition is set as the intial value of the study value, and the value approximate to the true output voltage in the idle speed condition is obtained by the study.

Abstract translation: 目的：为了确定怠速运转时轴传感器的输出值，通过抑制空转动作，并根据随后的轴传感器的输出检测数据，研究计算要存储的空转位置 要求研究空转位置时的怠速状态。 构成：在对怠速进行加速控制的情况下，空转动作中断，返回正常的怠速。 如果输出电压Va低于先前的研究值VAib，则计算输出电压VA和前一研究值VAib之间的算术平均值，获得在备用RAM21中读取的新的研究值VAi。 在备用RAM21中的内容消失后进行研究的情况下，将在怠速条件下的车轴传感器5的输出电压的不均匀范围内的上限值稍大的值设定为初始值 的研究值，并且通过研究获得在怠速条件下接近于真实输出电压的值。

公开(公告)号：JPS5977030A

公开(公告)日：1984-05-02

申请号：JP18444082

申请日：1982-10-22

Applicant: Nippon Soken Inc ,  Toyota Motor Corp

Inventor： TAKEUCHI YASUHIRO ,  KAWAGOE MICHIO ,  FUKUYAMA TADASHI

IPC: F02B19/16 ,  F02B3/06 ,  F02B19/14 ,  F02M61/14

CPC classification number: F02B19/14 ,  F02B3/06 ,  Y02T10/125

Abstract: PURPOSE:To prevent a wall of a communicating path affording communication between a fuel injection nozzle and a sub-combustion chamber from deposition and accumulation of fuel spray for reducing the production of HC and smoke by forming the path to diverge toward the sub-combustion chamber. CONSTITUTION:A portion of a sub-combustion chamber 1 provided in a cylinder heat 7 communicates to a main combustion chamber 6 through a communicating hole 5. In this case, a path 3 affording communication between a fuel injection nozzle 2 and the sub-combustion chamber 1 is shaped conically to diverge toward the sub-combustion chamber 1. The vertical angle of this cone coincides with the spray angle of a nozzle 2. Also, the diameter of the cone is the minimum diameter in which the spray does not contact the wall of the cone. Thus, fuel spray injected from the nozzle 2 is prevented from depositing and accumulating on the wall of the communicating path 3 to reduce the generation of both HC and smoke.

Abstract translation: 目的：为了防止燃料喷射喷嘴和副燃烧室之间的连通通道的壁沉积和积聚燃料喷雾，用于通过形成向副燃烧室发散的路径来减少HC和烟雾的产生 。 构成：设置在气缸加热器7中的副燃烧室1的一部分通过连通孔5与主燃烧室6连通。在这种情况下，提供燃料喷射喷嘴2和副燃烧之间的连通的路径3 腔室1的形状是锥形的，以朝向副燃烧室1发散。该锥体的垂直角度与喷嘴2的喷射角度一致。而且，锥体的直径是喷雾器不接触的最小直径 锥体的墙壁。 因此，防止从喷嘴2喷射的燃料喷雾沉积并积聚在连通路径3的壁上，以减少HC和烟的产生。