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1. 发明专利

JPS6013938A AIR-FUEL RATIO CONTROLLING APPARATUS FOR INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS6013938A
公开(公告)日：1985-01-24
申请号：JP12099783
申请日：1983-07-05
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： KOHAMA TOKIO , OOHAYASHI HIDEKI , KAWAI HISASHI , INA TOSHIKAZU , SHIGEMATSU TAKASHI , TOKORO SETSUO
IPC分类号： F02D41/14
摘要： PURPOSE:To improve the performance of an engine, by preventing misfiring by judging the misfiring causing limit from the reference deviation of the degree of variation in the engine combustion, and feedback controlling the air-fuel ratio of mixture supplied to the engine on the basis of said misfiring causing limit. CONSTITUTION:Combustion air is drawn into a combustion chamber 6 of an engine 1 via an air cleaner 2, an air-flow meter 3, an intake pipe 4 and an intake valve 5. A throttle valve 7 manipulated by the driver is provided in the intake pipe 4, and fuel is ejected toward the intake valve 5 from an electromagnetic fuel injection valve 8 disposed in the intake pipe 4. Mixture consisting of fuel and air is burnt in the combustion chamber 6 and discharged to the atmosphere via an exhaust valve 11 and an exhaust pipe 9. An angle signal plate 12 is attached to the pulley portion located at the top of a crankshaft. A control circuit 10 detects the misfiring causing limit from the reference deviation of the degree of variation in the engine combustion by processing the output signals of a cylinder discriminating sensor 131, angular signal sensor 121 and the air- flow meter 3 and drives an injector 8 by feedback controlling the air-fuel ratio of mixture supplied to the engine 1 on the basis of said misfiring causing limit.

2. 发明专利

JPS5481426A IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS5481426A
公开(公告)日：1979-06-28
申请号：JP14852477
申请日：1977-12-09
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： YAMAGUCHI KIMIAKI , HATSUTORI TADASHI , NISHIDA MINORU , GOTOU KENJI , SAWADA DAISAKU , SHIGEMATSU TAKASHI
IPC分类号： F02P5/15
摘要： PURPOSE:To obtain excellent combution, after the acceleration has been detected, detecting engine acceleration, adding variable to show engine condition and engine accelerating condition to advancing value, carrying out accelerating angle of advance to astringe the value of accelerating angle of advance to zero after that. CONSTITUTION:An ignition timing arithmetic unit 3 to decide ignition timing in accordance with the condition of internal combustion engine is connected to the angle detector 1, the suction air pressure detector 2, the acceleration 4 detector 4 and the temperature detector 6. The ignition timing arithmetic unit 3 is composed of the first detecting circuit 31 to detect the engine speed, the second detecting path 32 to detect suction negative pressure, angle of advance setter 34 to output accelerating angle of advance characteristics with accelerating condition, ignition timing deciding circuit 33 to decide the ignition timing, and the primary coil control circuit 35 to carry out energizing and cutting off in the primary circuit of ignition coil due to output in the ignition timing deciding circuit 33.

3. 发明专利

JPS5381833A IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS5381833A
公开(公告)日：1978-07-19
申请号：JP15728676
申请日：1976-12-26
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： HATSUTORI TADASHI , SAWADA DAISAKU , GOTOU KENJI , SHIGEMATSU TAKASHI , TAKEDA YUUJI , YAMAGUCHI KIMIAKI , NISHIDA MINORU
IPC分类号： F02P5/152 , F02P5/145 , F02P5/153
摘要： PURPOSE:By the control of the ignition timing to make Pmax/Pi be settled in a designated band area comparing the maximum pressure value Pmax of the pressure in the cylinder with the pressure value Pi at a fixed angle obtained before the mixed gas explosion, it is designed to bring the ignition timing set near to the MBT.

4. 发明专利

JPS5360431A IGNITION DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS5360431A
公开(公告)日：1978-05-31
申请号：JP13554876
申请日：1976-11-11
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： HATSUTORI TADASHI , SAWADA DAISAKU , GOTOU KENJI , SHIGEMATSU TAKASHI , TAKEDA YUUJI , YAMAGUCHI KIMIAKI , NISHIDA MINORU
IPC分类号： F02P5/152 , F02P5/153
摘要： PURPOSE:To improve output and fuel cost while ensuring the stability of an engine, by igniting near MBT regardless of the condition of the engine from the viewpoints of output and fuel cost, and by delaying angle so as not to generate knocking at the range in which knocking is generated.

5. 发明专利

JPS52151432A IGNITION PLUG FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS52151432A
公开(公告)日：1977-12-15
申请号：JP6894576
申请日：1976-06-11
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： HATSUTORI TADASHI , SAWADA DAISAKU , GOTOU KENJI , SHIGEMATSU TAKASHI , TAKEDA YUUJI , YAMAGUCHI KIMIAKI , NISHIDA MINORU
IPC分类号： G01L23/00 , F02P5/145 , F02P5/152 , F02P5/153 , G01H17/00
摘要： PURPOSE:To maintain ignition interval at the minimum put-on value MBT on maximum torque by controlling the ignition interval of an engine so that the ratio Pmax/Pm between the maximum value Pmax of the internal pressure of cylinders that is obtained when mixture gas is exploded and the maximum value Pm thereof on motoring.

6. 发明专利

JPS54153928A IGNITION TIMING CONTROLLER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS54153928A
公开(公告)日：1979-12-04
申请号：JP6269178
申请日：1978-05-25
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD , NIPPON DENSO CO
发明人： HATSUTORI TADASHI , GOTOU KENJI , SAWADA DAISAKU , SHIGEMATSU TAKASHI , YAMAGUCHI KIMIAKI , NISHIDA MINORU , ITOU TERUYOSHI
IPC分类号： F02P5/152 , F02P5/153
摘要： PURPOSE:To eliminate the out-of-order of the surge, etc. of an internal combustion engine, by forcedly delaying set angles and ignition timing when detecting the presence of knocking, and by first leading angles when the number of ignition exceeds number beforehand set in case of no-knocking. CONSTITUTION:A correction lead angle computing circuit 5 checks as to whether or not normal ignition combustion, which is not knocking, continue in set number while using the output of a knocking detecting circuit 9 as input, and is composed of a lead angle pulse circuit 5-1, which puts out the output as lead angle pulses when combustion is generated in set number, an up-down count circuit 5-2 using the lead angle pulses as input and a D-A converter 5-3. Analog voltage that the analog voltage of the D-A converter 5-3 becomes low when knocking signals (lag angle pulses) are formed and analog voltage becomes high when lead angle pulses are conversely generated is put out as the output of the correction lead angle computing circuit 5, and ignition timing is corrected by means of an ignition lead angle computing circuit 4.

7. 发明专利

JPS5360430A IGNITION DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS5360430A
公开(公告)日：1978-05-31
申请号：JP13550176
申请日：1976-11-10
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： HATSUTORI TADASHI , SAWADA DAISAKU , GOTOU KENJI , SHIGEMATSU TAKASHI , TAKEDA YUUJI , YAMAGUCHI KIMIAKI , NISHIDA MINORU
IPC分类号： F02P5/152 , F02P5/10 , F02P5/153
摘要： PURPOSE:To perform stable operation, by setting an ignition timing controller, which is connected with a knocking detector detecting knocking in an internal combustion engine and uses later timing than ignition timing corresponding to the condition of the engine as ignition timing when knocking is generated.

8. 发明专利

JPS5294940A INTERNAL COMBUSTION ENGINE IGNITION DEVICE 失效
公开(公告)号：JPS5294940A
公开(公告)日：1977-08-10
申请号：JP1171476
申请日：1976-02-05
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： SAWADA DAISAKU , GOTOU KENJI , SHIGEMATSU TAKASHI , TAKEDA YUUJI , HATSUTORI TADASHI , YAMAGUCHI KIMIAKI , NISHIDA MINORU
IPC分类号： F02P5/152 , F02D45/00 , F02P5/145 , F02P5/153
摘要： PURPOSE:To revice programmed advancing position by detecting driving condition of internal combustion engine, and to maintain the best ignition position constantly by making the separate revision against characteristic dispersion of engine possible.

9. 发明专利

JPS60125739A AIR-FUEL RATIO CONTROLLING APPARATUS FOR INTERNAL- COMBUSTION ENGINE 失效
公开(公告)号：JPS60125739A
公开(公告)日：1985-07-05
申请号：JP23152583
申请日：1983-12-09
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： OOHAYASHI HIDEKI , KOHAMA TOKIO , KAWAI HISASHI , INA TOSHIKAZU , SHIGEMATSU TAKASHI , TOKORO SETSUO
IPC分类号： F02D41/14
摘要： PURPOSE:To improve the performance of an engine, by preventing approaching of the air-fuel ratio to the critical point causing misfiring of the engine by correcting a required lean air-fuel ratio for feedback controlling the air-fuel ratio on the basis of said critical point detected from the rate of change of combustion, and thereby preventing occurrence of misfiring of the engine. CONSTITUTION:When the air-fuel ratio A/F becomes lean and approaches the misfiring causing region shown by a shaded portion in the drawing, the amount of NOx contained in the exhaust gas is reduced and the specific fuel consumption FC is lowered. However, when the air-fuel ratio A/F enters into the misfiring causing region, the amount of NOx contained in the exhaust gas is increased drastically. On the other hand, since the torque change DELTAtau of an engine is increased also drastically in the above misfiring causing region, the point where the torque change DELTAtau is increased drastically is considered as the critical point of lean mixture. Therefore, if the air-fuel ratio A/F of the engine is feedback controlled to keep the torque change DELTAtau always constant, it is enabled to operated the engine at the optimum lean critical point in respect of the rate of fuel consumption.

10. 发明专利

JPS6027761A MEASUREMENT OF VARIATION IN OUTPUT OF INTERNAL- COMBUSTION ENGINE 失效
公开(公告)号：JPS6027761A
公开(公告)日：1985-02-12
申请号：JP13575983
申请日：1983-07-27
申请人： NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： INA TOSHIKAZU , KAWAI HISASHI , KOHAMA TOKIO , OOHAYASHI HIDEKI , SHIGEMATSU TAKASHI , TOKORO SETSUO
IPC分类号： F02D45/00 , F02D41/14 , F02D41/38
摘要： PURPOSE:To raise the detection accuracy of output variation of internal combustion engine by correcting the varying values of periodic outputs appearing during each explosion stroke of the internal combustion engine by using one or more envelopes of pulsative engine revolving numbers, torques, and internal pressures of cylinders. CONSTITUTION:Pulse signal of an angle signal sensor 4 is put in an arithmetic circuit 72 through a wave form rectifying circuit 71A, where the period of the pulse signal is calculated. The output is then put in an arithmetic circuit 74. Discriminating signal of a cylinder discrimination sensor 6 is also put in the arithmetic circuit 74 through a wave form rectifying circuit 71B and a reading circuit 73, and the revolving number and torque varying amount, calculated in the circuit 74, are sent to an air-fuel ratio controller or ignition time controller. When revolving number variation DELTANm is obtained in the circuit 74, the variation of revolving number during the combustion of each cylinder is calculated, the variation of route face conditions during the varying period of revolving number is calculated, and they are subjected to deducting calculation to remove the effect of the variation of revolving number with change of the route face conditions. Only the variation in revolving number due to variation of combustion can thus be detected with good accuracy.

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