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91. 发明专利

JPS6143257A Variable venturi type carburetor 失效
标题翻译： VENTURI VENTURI型碳刷机
公开(公告)号：JPS6143257A
公开(公告)日：1986-03-01
申请号：JP16419784
申请日：1984-08-07
申请人： Aisan Ind Co Ltd , Toyota Motor Corp
发明人： YOKOO MASASHI , KATO TAKASHI , TANAKA HIROSHI , MOGI KAZUHISA , TAMURA YOSHIO , NAKATSU YASUNOBU , TADA GENJIRO , TAKEUCHI KATSUNAO
IPC分类号： F02M1/02 , F02M7/17
CPC分类号： F02M7/17 , F02M1/02
摘要： PURPOSE:To improve the starting performance and output performance of an engine by forming the upstream side of the lower edge surface of the piston of a variable venturi type carburetor into a flat sealing surface, and opening a suction hole at that part and forming a cut part towards the downstream of the undersurface of the piston from the suction hole. CONSTITUTION:A needle valve 4 having a thin diameter part at one part is fixed at the lower edge surface of a suction piston 3 installed in slidable ways onto the upstream side of a throttle valve 6. A flat surface 48 continuous to the surface of a suction passage 5 is formed onto the upstream side of the lower edge surface of the piston 3, and a suction hole 18 is formed at one part of the flat surface 48. A cut part 50 is formed towards the inclined surface 48 on the downstream side of the undersurface of the piston from the suction hole 18. Since the falt surface 48 is closely attached onto the surface of the suction passage when an engine starts, the leakage of inhaled air stream is prevented, and a large amount of fuel is inhaled from between the thin-diameter part 24 and a jet 21. When a negative pressure is generated, said negative pressure is certainly introduced into the piston from the cut part 50.
摘要翻译：目的：通过将可变文丘里型化油器的活塞的下边缘表面的上游侧形成平面密封面，提高发动机的起动性能和输出性能，并在该部分打开一个吸入孔并形成一个切口部分朝向吸入孔的活塞下表面的下游。构成：在一部分具有薄的直径部分的针阀4固定在以可滑动方式设置在吸入活塞3的下边缘表面上的节流阀6的上游侧。连接到节流阀6的表面的平坦表面48 吸入通道5形成在活塞3的下边缘表面的上游侧，并且在平坦表面48的一部分处形成吸入孔18.切割部分50朝向下游侧的倾斜表面48形成活塞的下表面从吸入孔18移动。由于当发动机起动时，平台表面48紧密地附着在吸入通道的表面上，所以防止了吸入空气流的泄漏，并且大量的燃料被从在直径部分24和喷嘴21之间。当产生负压时，所述负压肯定从切割部分50引入到活塞中。

92. 发明专利

JP2002256946A CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2002256946A
公开(公告)日：2002-09-11
申请号：JP2001060133
申请日：2001-03-05
申请人： TOYOTA MOTOR CORP
发明人： SADAKANE SHINJI , MOGI KAZUHISA , ASADA TOSHIAKI
IPC分类号： B60W10/04 , B60W10/00 , B60W10/06 , B60W10/10 , B60W10/11 , F01L1/34 , F01L1/356 , F01L13/00 , F02D9/02 , F02D11/10 , F02D13/02 , F02D29/00 , F02D29/02 , F02D41/04 , F02D43/00 , F02P5/15 , B60K41/00 , B60K41/06
摘要： PROBLEM TO BE SOLVED: To restrain temporary deterioration of combustion due to a difference between the operational delay of a variable valve mechanism and the operational delay of another variable mechanism. SOLUTION: This control device has a valve lift amount changing device 9 and/or an opening and closing timing shift device 11 (variable valve system) for changing a valve overlap amount of an intake valve 2 and an exhaust valve 3 and another variable mechanism such as a throttle valve 56 for changing the engine operating condition when its state is changed. In the case of changing the valve overlap amount and changing the state of the variable mechanism, according to the operational delay of the variable valve mechanism, the timing of changing the valve overlap amount and the timing of changing the state of the variable mechanism are set.

93. 发明专利

JP2002221054A CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2002221054A
公开(公告)日：2002-08-09
申请号：JP2001018809
申请日：2001-01-26
申请人： TOYOTA MOTOR CORP
发明人： NAKADA KOICHI , MOGI KAZUHISA , OTA TOKUJI
IPC分类号： F01L13/00 , F02D13/02 , F02D41/22 , F02D45/00 , F02P5/152 , F02P5/153
摘要： PROBLEM TO BE SOLVED: To perform a judgement of knocking accurately by avoiding such a judgement that no knocking is generated even if a knocking is generated actually. SOLUTION: In the case at least one of the suction valve 2 and exhaust valve 3 is opened or closed in the predetermined knock judging division T2, the opening or closing timing of at least one of the valves 2 and 3 is changed so that at least one of them does not open or close during this nock judging division T2, and signal from a knock sensor 22 is taken in during the nock judging division, and judgement is made whether or not knocking is generated.

94. 发明专利

JP2001165022A ENGINE STARTER AND ENGINE SYSTEM PROVIDED WITH ITS FUNCTION 失效
公开(公告)号：JP2001165022A
公开(公告)日：2001-06-19
申请号：JP2000292698
申请日：2000-09-26
申请人： TOYOTA MOTOR CORP
发明人： NAKAGAWA YASUNORI , MOGI KAZUHISA , OTA TOKUJI , AKAO NORIHIKO
IPC分类号： B60K11/02 , B60K6/20 , B60K6/485 , B60K6/543 , B60W10/06 , B60W10/08 , B60W10/30 , B60W20/00 , F01P5/14 , F02D29/06 , F02D43/00 , F02D45/00 , F02N11/00 , F02N11/08
摘要： PROBLEM TO BE SOLVED: To detect an abnormal condition of an endless member, and carry out fail safe treatment, in an engine starter for carrying out cranking by the endless member such as a belt. SOLUTION: The belt 13 as one shape of an endless member is wound around an engine 1, a starter motor 9, and an auxiliary machine 11. The engine 1 is drivingly started through a belt 13 by the starter motor 9. When a difference between both rotating speed of the starter motor 9 and the engine 1 is a prescribed threshold rotating speed value or more, it is judged that an abnormal condition is generated on the belt 13. When an operating abnormal condition is generated on a vehicle apparatus wound by the belt, it is judged that there is a cause in the abnormal condition of the belt. When the abnormal condition is generated, a main motor generator 3 of a hybrid system is used for start of the engine as an alternate motor for fail safe. An electrically driven water pump which is different from the mechanical water pump around which the belt is wound, is used as a pump for fail safe.

95. 发明专利

JP2000080944A COMBUSTION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2000080944A
公开(公告)日：2000-03-21
申请号：JP25097698
申请日：1998-09-04
申请人： TOYOTA MOTOR CORP
发明人： SADAKANE SHINJI , MOGI KAZUHISA
IPC分类号： F02P17/12 , F02D41/02 , F02D41/04 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To easily reduce dispersion between cylinders of a burning condition by detecting ion current corresponding to a rate of ion generated by burning mixture in a combustion chamber per cylinder, and regulating a burning condition so as to suppress a difference of detected ion current values between cylinders. SOLUTION: When mixture in a combustion chamber is ignited and burnt by spark discharge in an ignition plug 50, the mixture is ionized. Since voltage is applied between both electrodes of the ignition plug 50 by a constant voltage power supply 116, ion current flows when the mixture is ionized. Voltage generated on a connecting point of an ion current detecting resistance 118 and the constant voltage power supply 116 is supplied to an ECU as an ion current detecting circuit output. When an ion output is detected per cylinder and a cylinder having a small ion output exists, an injection timing of the cylinder is corrected so as to set the ion output of the cylinder to the maximum level, and thereby, combustion dispersion between the cylinders can be suppressed in a small level.

96. 发明专利

JP2000008941A COMBUSTION STATE DETECTION DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2000008941A
公开(公告)日：2000-01-11
申请号：JP17494398
申请日：1998-06-22
申请人： TOYOTA MOTOR CORP
发明人： SADAKANE SHINJI , OTSUKA IKU , MOGI KAZUHISA
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To detect a combustion state as well as fuel property in a short time in the area where the number of rotation of an engine just after starting is not stabilized, namely in an early stage after starting. SOLUTION: When a favorable combustion is compared with a rough combustion by a heavy quality fuel, a rapid increase in rotation speed is seen in either case, in the term from a start up to a complete explosion but at the dropping area of rotation speed thereafter, the rotation change rate in the rough combustion case is a vary bigger value than that of the favorable combustion. The increase of a rotation required time, namely the drop of the rotation speed between the last ignition cycle and a present ignition cycle is detected and the rotation change rate is found out. When this rotation change rate exceeds a judging base value, by judging that the combustion is deteriorated due to the heavy quality of a fuel property, the combustion state is detected immediately in the area just after starting, while removing the rapid increase area of rotation speed at the starting time.

97. 发明专利

JPH11324785A KNOCK CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH11324785A
公开(公告)日：1999-11-26
申请号：JP13287498
申请日：1998-05-15
申请人： DENSO CORP , TOYOTA MOTOR CORP
发明人： KOKUBO NAOKI , YAMAURA TOSHIAKI , MOGI KAZUHISA , NAKADA KOICHI
IPC分类号： F02P5/152 , F02D45/00 , F02P5/153
摘要： PROBLEM TO BE SOLVED: To determine the presence or absence of knocks precisely in consideration of a variation in the knock determination level caused by a variation in the background noise level that is superposed on a knock signal waveform. SOLUTION: A knock sensor 10 detects knock strength values, which are accumulated into the total whose half point is used as a median and from which a value in correspondence with the standard deviation thereof is computed. The background noise(BGN) level that is calculated from the standard- deviation-correspondent value is added to or subtracted from the knock strength values into a value in correspondence with a standard deviation for knock detection. The knock strength values are compared with a knock determination level prepared from the median and the knock-detection-standard-deviation- correspondent value against any influence by a variation in the BGN level, which comparison determines the presence or absence of knocks. The procedures make a precise determination of the presence or absence of knocks from the knock strength values, and permit appropriate control of the operating conditions of an internal-combustion engine.

98. 发明专利

JPH11270451A KNOCKING SENSING DEVICE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH11270451A
公开(公告)日：1999-10-05
申请号：JP7294998
申请日：1998-03-23
申请人： DENSO CORP , TOYOTA MOTOR CORP
发明人： KOKUBO NAOKI , SAKAKIBARA KOJI , MOGI KAZUHISA
IPC分类号： F02P17/12 , G01M15/00
摘要： PROBLEM TO BE SOLVED: To avoid misjudgement of knocking due to combustion noises in a system to judge occurrence of knocking through sensing of the ion current generated in a combustion chamber. SOLUTION: An ion current sensing signal given from an ion current sensing circuit 24 is fed to a band-pass filter 25, which extracts the signal components belonging to the knocking generating frequency band, followed by a peak hold process made by a peak hold circuit 26, and the peak value is read into a microcomputer 28. When the ignition timing is delayed, the microcomputer 28 judges that it is the noise generation region if the signal peak value read from the peak hold circuit 26 is incremental. In this case, knocking judgement is prohibited, and misjudgement of knocking due to combustion noise is avoided. If the ignition timing is advanced and the signal peak value is incremental, judgement is passed that it is knocking generation region, and the moderating value of the signal peak value is compared with the knocking judgement value, and the result is used to judge whether knocking exists.

99. 发明专利

JPH1150942A IONIC CURRENT DETECTOR OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH1150942A
公开(公告)日：1999-02-23
申请号：JP20805497
申请日：1997-08-01
申请人： DENSO CORP , TOYOTA MOTOR CORP
发明人： TANI HIDEJI , ITO YASUO , MOGI KAZUHISA , NAKADA KOICHI
IPC分类号： G01N27/68 , F02D45/00 , F02P17/12 , G01M15/00 , G01M15/04
摘要： PROBLEM TO BE SOLVED: To improve ionic current detecting accuracy by shortening the remanent magnetism vibrating time just after spark discharge of an ignition plug. SOLUTION: Since the stray capacity 43 exists on a high voltage cord 42 for connecting a secondary coil 26 of an ignition coil 21 and an ignition plug 27 to each other and the secondary coil 26 of the ignition coil 21, an LCR resonance circuit is formed of the stray capacity 43, the secondary coil 26 and an ionic current detecting resistor 31, and resonance waveform (remanent magnetic noise) is generated by remanent magnetic energy on the secondary side of the ignition coil 26 just after spark discharge of the ignition plug 27. Q of the LCR resonance circuit is so constituted as to be in the range of 0.5 to 3.0, preferably, in the range of 0.6 to 2.0 in order to decrease the effect of the remanent magnetic noise. Therefore, the remanent magnetism vibrating time becomes the target value (about 0.8 ms) or less, and the remanent magnetic noise can be quickly damped.

100. 发明专利

JPH1113618A FUEL-COVERING DETERMINATION DEVICE FOR IGNITION PLUG OF INTERNAL COMBUSTION ENGINE AND FUEL INJECTION CONTROL DEVICE 失效
公开(公告)号：JPH1113618A
公开(公告)日：1999-01-19
申请号：JP16774097
申请日：1997-06-24
申请人： TOYOTA MOTOR CORP
发明人： MOGI KAZUHISA
IPC分类号： F02P17/12 , F02D41/06 , F02P17/00
摘要： PROBLEM TO BE SOLVED: To control a fuel injection amount at the time of starting and improve startability of an engine by sensing characteristics of spark discharge of an ignition plug, and determining whether or not the ignition plug is under a fuel- covering state. SOLUTION: When high voltage of minus porality is applied to a center electrode 50a of an ignition plug 50, spark discharge is generated between the center electrode 50a and an outer side electrode 50b. Current is circulated through an ignition coil secondary coil 52b and the ignition plug 50. At this time, secondary voltage output signal is generated at a contact between capacitors 111 and 112. An absolute value of the secondary voltage is normally decreased after passage of specified time from the ignition timing. Under fuel- covering state, the value is kept high due to repetitive number of spark generation. An ECU reads the secondary voltage after passage of specified time from the ignition timing. The voltage is compared to the specified determination reference level. Then it is determined whether the state is normal or fuel- covering, and the determination signal is transmitted.

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