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1. 发明专利

JP2591258B2 失效
公开(公告)号：JP2591258B2
公开(公告)日：1997-03-19
申请号：JP14851690
申请日：1990-06-08
申请人： TOYOTA MOTOR CO LTD
发明人： MATSURA KOZO , MORI KENJI , KASHIWAKURA TOSHIMI
IPC分类号： F02B29/08 , F02D33/00 , F02D41/12 , F02D45/00 , F02M23/04

2. 发明专利

JPS60135643A METHOD OF CONTROLLING FUEL CUTOFF AT THE TIME OF DECELERATING ELECTRONICALLY CONTROLLED ENGINE 失效
公开(公告)号：JPS60135643A
公开(公告)日：1985-07-19
申请号：JP24887583
申请日：1983-12-23
申请人： TOYOTA MOTOR CO LTD
发明人： KASHIWAKURA TOSHIMI
IPC分类号： F02D41/12 , F02D41/00 , F02D41/34
摘要： PURPOSE:To improve the accelerating performance and the engine-stall preventing performance of an engine, by providing a process of executing fuel cutoff continuously, a process of executing fuel cut and fuel supply alternately and a process of executing fuel supply. CONSTITUTION:The fuel cut controlling method of this invention comprises a process of detecting the condition that a throttle valve is closed completely and a process of executing fuel cutoff continuously when the throttle valve is closed completely and the engine speed is higher than a first fuel cutoff engine speed. Further, the method comprises a process of executing fuel cutoff and fuel supply alternately when the throttle valve is closed completely and the engine speed is lower than said first fuel cutoff engine speed but higher than a second fuel cutoff engine speed. By employing such a method, it is enabled to improve the engine-stall preventing performance and the accelerating performance at the time when fuel cutoff is executed.

3. 发明专利

JPS58148269A FUEL-INJECTION TYPE CARBURETOR 失效
公开(公告)号：JPS58148269A
公开(公告)日：1983-09-03
申请号：JP2904782
申请日：1982-02-26
申请人： TOYOTA MOTOR CO LTD
发明人： TAKEDA KEISOU , HIRATA TOSHIYUKI , KASHIWAKURA TOSHIMI
IPC分类号： F02M69/00 , F02M69/04
摘要： PURPOSE:To lessen the resistance to intake air flowing, by enlarging the bore diameter of a throttle body at a position where a fuel injection valve is provided, in case of a fuel injection carburetor carrying a fuel injection valve at the upstream of a throttle valve. CONSTITUTION:A throttle bore part 36 where a supporting body 18 for a fuel injection valve 16 and the valve 16 itself are to be disposed is made larger than a throttle bore part 38 in diameter while these parts are connected to each other a conical part 40 being so designed as lessen the air resistance. Likewise, the direction of the supporting body 18 is adjusted right to that of a valve shaft 14 for the throttle valve 12. For this reason, the resistance to the flow of intake air running past a part of the fuel injection valve 16 is reduced whereby the desired engine performance can be secured.

4. 发明专利

JPS603452A METHOD OF CONTROLLING FUEL INJECTION AT ACCELERATION OF FUEL INJECTION TYPE INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS603452A
公开(公告)日：1985-01-09
申请号：JP11106583
申请日：1983-06-22
申请人： TOYOTA MOTOR CO LTD
发明人： KASHIWAKURA TOSHIMI
IPC分类号： F02D41/00 , F02D41/10 , F02D41/12 , F02D41/34
摘要： PURPOSE:To improve responsibility to acceleration of an internal combustion engine by increasing the incremental quantity of fuel to be injected when the engine is accelerated from the fuel-cut-off condition in comparison with the quantity thereof injected when it is accelerated from the constant operation condition. CONSTITUTION:An engine control unit 10 performs fuel injection control such that the incremental quantity of fuel injected when an engine is accelerated from the fuel-cut-off condition is increased in comparison with the quantity thereof to be injected when the engine is accelerated from the constant operating condition. That is, the unit is charged with a routine of varying the incremental quantity of fuel at the acceleration time according to the former condition where a throttle valve 2 was closed fully or not. In other words, the incremental quantity of fuel is varied according to whether or not fuel is cut off with the throttle valve 2 fully closed. When an engine is accelerated from the condition where fuel is cut off, the incremental quantity thereof is additionally increased, whereby providing higher responsibility to acceleration.

5. 发明专利

JPS58176470A CONTROL OF REVOLUTION NUMBER OF ENGINE UPON IDLING 失效
公开(公告)号：JPS58176470A
公开(公告)日：1983-10-15
申请号：JP5866782
申请日：1982-04-08
申请人： TOYOTA MOTOR CO LTD
发明人： TAKEDA KEISOU , HIRATA TOSHIYUKI , KASHIWAKURA TOSHIMI
IPC分类号： F02P5/155 , F02P5/04
摘要： PURPOSE:To control the revolution number of an engine at an objective revolution number by a method wherein the amount of spark-advance of ignition timing is increased or decreased by comparing the revolution number of the engine upon idling with a preset revolution number. CONSTITUTION:The volume of suction air is detected as an output voltage in the potentiometer 2B of an airflow meter 2 serving as a suction air volume sensor while an exhaust manifold 16 is provided with an O2 sensor for controlling mixture at the vicinity of a logical air-fuel ratio. When the revolution number of the engine is decided that it is not higher than the predetermined revolution number thereof upon idlding, the increasing or decreasing inclement DELTAtheta of the spark-advance is obtained, and in case the varying amount DELTANE of the engine revolution number is positive, the spark-advance is reduced that the same of before while it is increased in case the varying amount is negative. When it is decided that the predetermined revolution number is elapsed but a predetermined time is not elapsed, the spark-advance theta' is advanced in case the present revolution number is smaller than the objective while it is delayed in case it is larger than the same.

6. 发明专利

JPS5623562A FUEL INJECTING CARBURETOR 失效
公开(公告)号：JPS5623562A
公开(公告)日：1981-03-05
申请号：JP9721179
申请日：1979-08-01
申请人： TOYOTA MOTOR CO LTD
发明人： TAKEDA KEISOU , INOUE SHIYOUZOU , KASHIWAKURA TOSHIMI
IPC分类号： F02M29/04 , F02B1/04 , F02M69/00 , F02M69/04 , F02M69/14
摘要： PURPOSE:To more evenly distribute fuel for each cylinder by providing a fuel injection valve at a predetermined angle inside a vertical throttle bore containing a throttle valve so as to blast fuel against the throttle valve completely opened. CONSTITUTION:A vertical throttle bore 5 wherein a throttle valve 12 is placed is communicated with a horizontal suction manifold 2 containing a manifold collecting section 3. An extension 9 of the lower end of the bore 5 is projected into the collecting section 3. A fuel injection valve 13 faced downwards to the manifold 2 is disposed at an angle in the bore 5 downstream the throttle valve 12. When the throttle valve 12 is completely opened, the direction of a fuel injected from the injection valve 13 is determined that the fuel can be blasted against the surface 12b of the throttle valve.

7. 发明专利

JPS5623559A FUEL INJECTING CARBURETOR 失效
公开(公告)号：JPS5623559A
公开(公告)日：1981-03-05
申请号：JP9720879
申请日：1979-08-01
申请人： TOYOTA MOTOR CO LTD
发明人： TAKEDA KEISOU , INOUE SHIYOUZOU , KASHIWAKURA TOSHIMI
IPC分类号： F02M29/04 , F02M29/00 , F02M69/00
摘要： PURPOSE:To more evenly distribute fuel for each cylinder by orienting a fuel injection valve opening to a vertical throttle bore containing a throttle valve, to the direction of air flow inside a horizontal suction manifold which is communicated with the bore to form a suction system. CONSTITUTION:A throttle valve 12 is placed inside a vertical throttle bore 7. The lower end of the bore 5 is communicated with a horizontal suction manifold 2 which has a manifold collecting section 3. Fuel is supplied from the collecting section 3 for each cylinder via an appropriate manifold 2. An injection valve 13 for injecting fuel in a tank 20 opens into a bore 5 downstream the throttle valve 12 and is inclined with its end faced downwards to each manifold 2.

8. 发明专利

JPS60252142A CONTROLLING METHOD OF PARTIAL OPERATION CONTROL TYPE INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS60252142A
公开(公告)日：1985-12-12
申请号：JP10740784
申请日：1984-05-29
申请人： TOYOTA MOTOR CO LTD
发明人： KASHIWAKURA TOSHIMI
IPC分类号： F02D41/02 , F02D41/00 , F02D41/04 , F02D41/34 , F02D41/36
摘要： PURPOSE:To make fuel atomization ever so favorable as well as to control a fuel injection quantity in a highly accurate manner, by letting a fuel injection valve perform its fuel injection synchronously with a suction stroke of a moving cylinder in time of suspending a part of cylinders. CONSTITUTION:When which cylinder is in a suction stroke is discriminated, that whether a car is in deceleration or not is judged at a step 201. If partial cylinder operation takes place, transferring to a step 204, that whether now a second or a third cylinder is in a suction stroke or not is judged. If the suction stroke of these cylinders is the case, it transfers to a step 202 and thereby a valve opening command of a fuel injection valve 3 is no longer outputted, but inversely if the suction stroke other than these cylinders is the case, it transfers to a step 5 whereby the valve opening command of the fuel injection valve 3 is outputted. Thus, fuel atomization is made ever so favorable and a fuel injection quantity is controllable in a highly accurate manner.

9. 发明专利

JPS6085253A IGNITION TIMING CONTROL METHOD 失效
公开(公告)号：JPS6085253A
公开(公告)日：1985-05-14
申请号：JP19384883
申请日：1983-10-17
申请人： TOYOTA MOTOR CO LTD
发明人： KASHIWAKURA TOSHIMI
IPC分类号： F02P5/15 , F02P5/04
摘要： PURPOSE:To make it possible for an engine to ignite at a spark advance corresponding to the air-fuel ratio within its combustion chamber in the state of transient operation by igniting the engine with the use of the spark advance angle in accordance with the engine operating conditions in its intake stroke or prior to that. CONSTITUTION:In the ignition arithmetic timing every 180 deg. CA, a control circuit 35 gives a basic spark advance THB based on the rotating speed of an engine by a crank angle sensor 25 and on the amount of intake air by an air flow meter 7, which is corrected using an engine temperature 33, the air-fuel ratio by O2 sensor 27, etc.; thus the final spark advance THF is obtained. This is stored as the newest spark advance THFn, and the old spark advance THF0, which was previously obtained and stored, is used for actual ignition as the spark advance THF. An igniter 19 is turned on/off at the igniter on/off time set by the timer to supply a high voltage to the ignition plug. In this way, the engine can be ignited at an ignition time fit for the ratio of air and fuel which is taken in approximately 180 deg. CA prior to explosion.

10. 发明专利

JPS5623563A FUEL INJECTING CARBURETOR 失效
公开(公告)号：JPS5623563A
公开(公告)日：1981-03-05
申请号：JP9721279
申请日：1979-08-01
申请人： TOYOTA MOTOR CO LTD
发明人： TAKEDA KEISOU , INOUE SHIYOUZOU , KASHIWAKURA TOSHIMI
IPC分类号： F02M69/00 , F02M27/08 , F02M31/135 , F02M69/04
摘要： PURPOSE:To facilitate atomization of injected fuel by embedding in the wall of a vertical throttle bore containing a throttle valve, an atomization promotive device opposed to an injection valve which is inclined and opens into the throttle bore. CONSTITUTION:A vertical throttle bore 5 wherein a throttle valve 12 is placed is communicated with a horizontal suction manifold 2 containing a manifold collecting section 3. A fuel injection valve 13 faced downwards to the manifold 2 is disposed as opening into the bore 5 downward the throttle valve 12. An atomization promotive device 15 consisting of a high frequency oscillator and a heater is embedded in the inwall of the bore against which a fuel is blasted from the injection valve 13.

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