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1. 发明专利

JPS57210133A ELECTRIC CONTROLLER FOR DIESEL ENGINE 失效
公开(公告)号：JPS57210133A
公开(公告)日：1982-12-23
申请号：JP9419881
申请日：1981-06-17
申请人： NIPPON DENSO CO , TOYOTA MOTOR CO LTD
发明人： KUMANO MIKIO , YASUURA NOBUSHI , TSUZUKI YOSHIHIKO , HASEGAWA TAKASHI , HAYAKAWA RIYUUSUKE , AKATSUKA TAKAO , NAGASE MASAOMI
IPC分类号： F02D41/22 , F02B3/06 , F02D41/26 , F02D41/40
摘要： PURPOSE:To prevent abnormal increase of an injection quantity and overspeed of an engine at occurrence of abnormality, by detecting the abnormality of a microcomputer and its peripheral circuits and switching an injection quantity command from a normal arithmetic quantity command to a subtarget injection quantity command. CONSTITUTION:The captioned device comprises a central processing unit (CPU)2, in which signals from detectors 1a-1g detecting an operational condition of speed, intake pressure, accelerator control amount, etc. are input to arithmetically obtain a target injection quantity of an engine. This CPU2 further compares a signal of the target injection quantity with a signal of an actual injection quantity detector 6 to correct its error by controlling an actuator and control an injection quantity of a fuel injection pump 1. At this time, an arithmetic circuit 8, calculating a subtarget injection quantity by a signal from said detectors 1a- 1g, and detector circuits 9, 10, detecting abnormality of the CPU2 and its peripheral circuits, are further provided in the CPU2, at detection of abnormality, a selector circuit 11 is switched to output a subtarget injection quantity signal.

2. 发明专利

JPS57212337A ELECTRIC GOVERNOR FOR INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS57212337A
公开(公告)日：1982-12-27
申请号：JP9866481
申请日：1981-06-24
申请人： NIPPON DENSO CO , TOYOTA MOTOR CO LTD
发明人： KUMANO MIKIO , YASUURA NOBUSHI , TSUZUKI YOSHIHIKO , HASEGAWA TAKASHI , HAYAKAWA RIYUUSUKE , AKATSUKA TAKAO , NAGASE MASAOMI
IPC分类号： F02D41/22 , F02D35/00 , F02D41/40
摘要： PURPOSE:To keep an injection amount at proper value even upon an abnormal operating condition by a method wherein the injection amount is controlled by a set value or the control of the injection amount is switched into an open loop control even under the abnormal operating condition. CONSTITUTION:Signals from the group 1a-1h of detectors for various operating conditions of the engine for vehicles or the like are received by a central processing unit 2, an objective injection amount is calculatd and is outputted into a D/A converter 11 to control a positioning servo circuit 4, correcting the difference between the objective injection amount, and monitor the operating amount of an accelerating pedal as well as the actural injection amount. When the unit 2 has decided that the operating amount of the accelerating pedal is abnormal by the signal from the senser 1f, the input value of the senser 1f is replaced with a set opening and is fixed to move to a next step, on the other hand, when the unit 2 has dicided that the actual injection amount is abnormal by the signal from a spill position senser 1b, the control of the fuel injection amount is switched into the open loop control, the feedback of a circuit 4 is stopped and a loop injection amount commanding voltage is calculated to control.

3. 发明专利

JPS57110731A METHOD OF CONTROLLING TIME FOR JETTING OF DISTRIBUTION TYPE FUEL JET PUMP 失效
公开(公告)号：JPS57110731A
公开(公告)日：1982-07-09
申请号：JP18626380
申请日：1980-12-26
申请人： NIPPON DENSO CO
发明人： MASAKI SHIYOUICHI , IBUKI NORITAKA , HASEGAWA TAKASHI , HAYAKAWA RIYUUSUKE
IPC分类号： F02D41/40 , F02D41/22
摘要： PURPOSE:To enable suitable jet time control, by performing open loop control, when abnormality is detected in a jet time detector, so that the working extent of a pressure regulating valve is kept at a prescribed value. CONSTITUTION:A controller 14 calculates suitable jet time from informations from sensors for detecting the state of an engine, determines a duty ratio of the pressure regulating valve 13 from its erroneous difference from a timer piston position obtained by a jet time detector 15, and controls fuel jet time by feedback control. When abnormality is detected in the jet time detector 15, by lighting a lamp or other means by an abnormality displaying circuit 17 the abnormality is notified to the operator, then based upon the abnormality detection flag from the feedback cntrol by a signal of the detector 15, the duty ratio of the pressure regulating valve 13 is fixed, and it is changed to open loop control. Accordingly, the timer piston position can be controlled proportionary to proportionally to the internal pressure of the pump.

4. 发明专利

JPH08150901A BURGLARY PREVENTING DEVICE OF VEHICLE OR THE LIKE 失效
公开(公告)号：JPH08150901A
公开(公告)日：1996-06-11
申请号：JP15164295
申请日：1995-06-19
申请人： NIPPON DENSO CO
发明人： HIRATA SANAE , HAYAKAWA RIYUUSUKE
IPC分类号： B60R25/04 , B62H5/00 , F02N11/10 , F02N15/00 , F02P11/04
摘要： PURPOSE: To provide a burglary preventing device, by which even if a CPU of a prime mover control device is reset by some reason, the operation of the prime mover is kept intact. CONSTITUTION: The CPU 21a of a security ECU 20 conducts arithmetic processing for permission of fuel injection to an engine or arithmetic processing for permission of starting for a starter 40 on condition that both a door key switch 10a and an ignition switch 10b are turned on. The CPU 32a of an engine ECU 30 conducts arithmetic processing for securing fuel injection to the engine according to data on permission or inhibition of fuel injection stored in B/ URAM 34 even if it is reset after receiving data on permission or inhibition processing of fuel injection from the CPU 21a.

5. 发明专利

JPH0633828A ON-VEHICLE ELECTRONIC CONTROL 失效
公开(公告)号：JPH0633828A
公开(公告)日：1994-02-08
申请号：JP19077292
申请日：1992-07-17
申请人： NIPPON DENSO CO
发明人： HAYAKAWA RIYUUSUKE , HAYASHI SHINNOSUKE
IPC分类号： F02D45/00
摘要： PURPOSE:To obtain an on-vehicle type electronic controller with which the service performance on the market can be improved and the sufficient reliability can be obtained, by using an imvolatile type memory device which can rewrite the memorized data which is characteristic for the kind of vehicle, engine, etc. CONSTITUTION:An electronic controller is equipped with an EEPROM which can rewrite data from the outside equipment 17 through a serial communication interface 16 and a ROM 14 which memorizes the default data and a default program. The data anomaly of the EEPROM is judged by a check program memorized in the ROM 14, and when the data anomaly of the EEPROM is judged, the default data and default program of the ROM are used, in substitution of the data and program which are characteristic for the vehicle and engine and memorized in the EEPROM, and the vehicle is controlled to the safe side by the default data and the default program.

6. 发明专利

JPS5982534A CONTROL OF FUEL INJECTION AMOUNT FOR INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS5982534A
公开(公告)日：1984-05-12
申请号：JP19114782
申请日：1982-10-29
申请人： NIPPON DENSO CO
发明人： MIYAKI MASAHIKO , MASUDA AKIRA , SUMIYA SHINYA , MATSUMURA TOSHIMI , HASEGAWA TAKASHI , MAEDA SHINICHI , HAYAKAWA RIYUUSUKE , KONDOU YOSHIHIKO
IPC分类号： F02D41/40 , F02D41/14
摘要： PURPOSE:To permit smooth idle revolution by detecting the number of engine revolution at a prescribed crank angle position before and after fuel combustion, for the combustion of each cylinder, and correcting the fuel injection amount so that the difference of the number of revolution before and after combustion is made equal in each cylinder. CONSTITUTION:The top dead center interruption is started in Step 201. Each cylinder related at present is judged in Steps 202-204, and the number of revolution of said cylinder is detected in Step 205. In Step 208, interruption is started, passing by about 45 deg. from the top dead center, and the number of engine revolution of said cylinder is detected in Step 209. The deviation between the both number of revolution is obtained in Step 211. The average value for all cylinders is obtained in Step 212. Fuel injection amount is corrected in Steps 214-216 so that the average deviation DELTAN for all cylinders and the deviation DELTANi of said cylinder accords. Thus, smooth idle revolution is obtained.

7. 发明专利

JPS6123848A Fuel injection quantity controlling method 失效
标题翻译：燃油喷射量控制方法
公开(公告)号：JPS6123848A
公开(公告)日：1986-02-01
申请号：JP14177484
申请日：1984-07-09
申请人： Nippon Denso Co Ltd
发明人： HAYAKAWA RIYUUSUKE , HASEGAWA TAKASHI , SAKAKIBARA SHUJI , MATSUMURA TOSHIMI , SUMIYA SHINYA
IPC分类号： F02D41/36 , F02B1/04 , F02D41/00 , F02D41/14 , F02D41/34 , F02D41/40
CPC分类号： F02D41/0085 , F02B1/04 , F02D41/1498 , F02D2200/1015
摘要： PURPOSE: To check an uncomfortable variation in engine speed, by compensating each compensation variable adjustably so as to set the sum total of compensation variables for a fuel injection quantity to be compensated at each cylinder of an internal-combustion engine down to nearly zero.
CONSTITUTION: At a step 302, the sum total S=ΣQi of injection quantity correction items Qi for each cylinder is calculated. Next, at a step 303, if an absolute value |S| is smaller than a threshold value δ, a process comes to an end without doing nothing as it is. If the absolute value is larger than the threshold value δ, it goes forward to the next step 304 in order to add a compensation value to the injection quantity correction item Qi. At steps 304W306, according to positive and negative codes of the said sum total S, a fixed compensation value Δ is added or subtracted to or from each injection quantity correction item Qi. As a result, the absolute value |S| of the sum total S of injection quantity correction items Qi is compensated so as to be reduced. Thus, an uncomfortable variation in engine revolution is checked.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：为了检查发动机转速的不舒服变化，通过可调整地补偿每个补偿变量，将内燃机的每个气缸处的补偿量的补偿变量的总和设定为接近零。构成：在步骤302，计算每个气缸的喷射量校正项目Qi的总和S = SIGMAQi。接下来，在步骤303中，如果绝对值| S|小于阈值delta，则处理结束，而不做任何事情。如果绝对值大于阈值delta，则前进到下一步骤304，以便向喷射量校正项目Qi添加补偿值。在步骤304-306中，根据所述总和S的正和负代码，将固定补偿值DELTA与每个喷射量校正项目Qi相加或相减。结果，补偿喷射量校正项目Qi的总和S的绝对值| S，以减小。因此，检查发动机转速的不舒服变化。

8. 发明专利

JPS6114446A Fuel injection quantity control for internal-combustion engine 失效
标题翻译：燃油喷射量控制内燃机
公开(公告)号：JPS6114446A
公开(公告)日：1986-01-22
申请号：JP13478084
申请日：1984-06-28
申请人： Nippon Denso Co Ltd
发明人： SAKAKIBARA SHIYUUJI , HASEGAWA TAKASHI , SUMIYA SHINYA , HAYAKAWA RIYUUSUKE , MATSUMURA TOSHIMI
IPC分类号： F02D41/36 , F02D41/00 , F02D41/14 , F02D41/34 , F02D41/40
CPC分类号： F02D41/0085 , F02D41/1498
摘要： PURPOSE:To reduce uncomfortable fluctuation of rotation by obtaining the differential rotation before and after combustion and reducing the fuel supply to the cylinder such that the difference will be maximized. CONSTITUTION:Fluctuation of variation DELTANi for each cylinder is operated in step 206. While correcting amount qi of fuel injection is updated in step 208 to reduce the injection for i-th cylinder having the maximum DELTANi determined in step 207. In step 209, correcting amounts of injection for three other cylinders are increased to maintain the average injection of all cylinders constant. Consequently, uncomfortable fluctuation of rotation can be reduced considerably.
摘要翻译：目的：通过获得燃烧之前和之后的差速旋转并减少向气缸的燃料供应，以减小差异，从而减少不舒适的旋转波动。构成：在步骤206中操作每个气缸的变化量的变化DELTANi。在步骤208中更新燃料喷射的校正量q i，以减少在步骤207中确定的具有最大DELTANi的第i个气缸的喷射。在步骤209中，校正增加三个其他气缸的喷射量，以保持所有气缸的平均喷射量恒定。因此，可以显着地降低旋转不舒适的波动。

9. 发明专利

JPS59141729A Method of controlling fuel injection quantity of internal-combustion engine 失效
标题翻译：燃油喷射量控制方法
公开(公告)号：JPS59141729A
公开(公告)日：1984-08-14
申请号：JP1530683
申请日：1983-01-31
申请人： Nippon Denso Co Ltd
发明人： MIYAKI MASAHIKO , MASUDA AKIRA , SUMIYA SHINYA , MATSUMURA TOSHIMI , HAYAKAWA RIYUUSUKE , HASEGAWA TAKASHI
IPC分类号： F02B1/04 , F02D41/08 , F02D41/14 , F02D41/36 , F02D41/40
CPC分类号： F02D41/408 , F02B1/04 , F02D41/1498 , F02D2200/1015 , Y02T10/44
摘要： PURPOSE: To obtain a smooth idling speed, by assuming the torque of each combustion from the instantaneous engine speed, and correcting the fuel injection quantity for each cylinder in the manner that the torque is made equal for all of the cylinders.
CONSTITUTION: An engine-speed sensor 5 is attached to the driving shaft of a fuel injection pump 2, and the output signal of the sensor 5 is afforded to a computor 9. The engine-speed signal is detected at prescribed intervals of the crank angle of an engine, and the engine-speed signals are divided into several groups, and the injection quantity of fuel for each cylinder is corrected respectively when the engine-speed signals of more than a prescribed number of groups show similar tendency. By employing such a method, it is enabled to render the idling speed smooth.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过从瞬时发动机转速假定每次燃烧的转矩，并以对所有气缸的扭矩相等的方式校正每个气缸的燃料喷射量来获得平滑的空转速度。构成：将发动机速度传感器5安装在燃料喷射泵2的驱动轴上，并将传感器5的输出信号提供给计算机9.以规定的曲柄角度间隔检测发动机速度信号发动机速度信号被分成几组，并且当超过规定数量的组的发动机速度信号显示相似的趋势时，分别校正每个气缸的燃料喷射量。通过采用这种方法，能够使空转速度平滑。

10. 发明专利

JPS6125947A Correction control for fuel injection amount 失效
标题翻译：燃油注入量校正控制
公开(公告)号：JPS6125947A
公开(公告)日：1986-02-05
申请号：JP14736584
申请日：1984-07-16
申请人： Nippon Denso Co Ltd
发明人： HASEGAWA TAKASHI , HAYAKAWA RIYUUSUKE , MATSUMURA TOSHIMI , SAKAKIBARA SHUJI , SUMIYA SHINYA
IPC分类号： F02D41/36 , F02D41/00 , F02D41/14 , F02D41/22
CPC分类号： F02D41/22 , F02D41/1498 , F02D2200/1015
摘要： PURPOSE:To secure safe revolution by temporarily suspending the correction learning and correction control for injection amount when the variation rate of the number of engine revolution is over a certain value and by releasing said suspension when a certain or more of the revolution signals considered as normal are continuously inputted. CONSTITUTION:During engine operation, a computer 9 calculates the fuel injection amount optimum in the engine-operation state which momently varies on the basis of the output signals of an engine revolution speed detector 8 and an accelerator stepping-in amount detector (load sensor) 10. In order to correct the distribution of the generated torque in each cylinder, the injection amount in each cylinder is learning-corrected. In this case, the variation rate of the number of engine revolution is calculated, and it is judged that the variation rate is over a certain value or not. When the judgement is YES, the detected revolution signal is considered as abnormal, and correction learning and correction control are suspended temporarily. When a certain number or more of the revolution signals considered as normal are continuously input, correction learning and correction control are restarted.
摘要翻译：目的：通过在发动机转数变化率超过一定值时暂时中止喷射量校正学习和校正控制来确保安全旋转，并且当某些或更多的转速信号被视为正常时，释放所述悬架连续输入。构成：在发动机运转中，计算机9基于发动机转速检测器8和加速踏板量检测器（负载传感器）的输出信号计算发动机运转状态下的最佳燃料喷射量，为了校正每个气缸中产生的扭矩的分布，每个气缸中的喷射量被学习校正。在这种情况下，计算发动机转数的变化率，判断为变化率超过一定值。当判断为“是”时，检测到的转动信号被认为是异常的，并且暂时地暂停校正学习和校正控制。当一定数量以上被认为是正常的转数信号被连续输入时，重新开始校正学习和校正控制。

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