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11. 发明专利

JPS5982540A FUEL INJECTION TIMING CONTROLLER 失效
公开(公告)号：JPS5982540A
公开(公告)日：1984-05-12
申请号：JP19182382
申请日：1982-11-02
申请人： DIESEL KIKI CO
发明人： OKANO MASAMI
IPC分类号： F02D41/40 , F02D41/34
摘要： PURPOSE:To improve the accuracy in fuel injection timing by correcting the aimed injection timing according to the temperature of the working fluid in a hydraulic timer, in an apparatus for open-loop-controlling the fuel injection timing by using the hydraulic timer. CONSTITUTION:A calculation circuit 21 calculates the proper injection timing D1 corresponding to the operation state of an internal-combustion engine. The speed data and the fuel temperature data which shows the temperature of fuel which is supplied also as working fluid into a hydraulic timer are input into a fuel- temperature correction data calculation circuit 27, and the deviation of fuel injection timing generated by the variation of fuel temperature is corrected, and a fuel temperature correction data D4 is calculated on the basis of the both input data. Thus, the accuracy in control of fuel injection timing can be improved.

12. 发明专利

JPS57165641A SIGNAL DETECTOR CIRCUIT OF INJECTION VALVE LIFT SENSOR 失效
公开(公告)号：JPS57165641A
公开(公告)日：1982-10-12
申请号：JP5193681
申请日：1981-04-06
申请人： DIESEL KIKI CO
发明人： OKANO MASAMI
IPC分类号： F02D41/34 , F02D45/00
摘要： PURPOSE:To perform correct control at detection of a needle valve lift, by arranging the time constant of resistor and capacitor, in a feedback circuit of the comparison operational amplifier between sensor and reference signals, to a large value at low speed and a small value at high speed. CONSTITUTION:For engine speed not more than a prescribed value, an H signal is output from a processor 33 to turn on a transistor 31 and short circuit a capacitor 30, and the time constant of a feedback circuit 11 is increased by a resistor 12 and capacitor 13 to extend an H level section of the output signal W of an operational amplifier 6, accordingly the output signal S of a pick up coil 2 can be correctly detected even for continuous generation of a noise signal S0. On the contrary, for the speed of become at least the prescribed value, the transistor 31 is turned off, and the capacitor 30 is connected for the capacitor 13 to decrease the time constant. Accordingly, H level width of the signal W is decreased, and the signal W following up the signal S can be obtained, then operation of a needle valve can be correctly detected.

13. 发明专利

JPH02194411A ACTUATOR CONTROLLER 失效
公开(公告)号：JPH02194411A
公开(公告)日：1990-08-01
申请号：JP1304089
申请日：1989-01-24
申请人： DIESEL KIKI CO
发明人： OKANO MASAMI
IPC分类号： G05B24/02 , G05F1/10 , H02P8/00 , H02P8/12 , H03M1/10
摘要： PURPOSE:To cancel offset inherent in an actuator without complicating a circuit constitution by offsetting a potential at a resistance circuit and the respective operation reference points of a switching means by required level. CONSTITUTION:An offset voltage generating circuit 7 applies offset voltages Va to switching elements 51 to 56 of a switching circuit 5 and the respective operation reference points of a resistance circuit 6. Weighted currents are applied through the switching elements made into a turned-on state in response to a digital command signal DC to a resistor 67 and a variable resistor 68 of the resistance circuit 6. The voltage corresponding to the sum between a voltage Vb generated by the current and an offset voltage Va is fetched as an output voltage Vout of the resistance circuit 6, and a current control circuit 8 controls the level of a driving current I of an electromagnetic actuator 3 according to the level of the output voltage Vout. Thus without complicating the circuit constitution, a necessary control according to an inputted digital command quantity is executed for the actuator attached with offsetting by a single power source.

14. 发明专利

JPH0192817A DRIVING CIRCUIT 失效
公开(公告)号：JPH0192817A
公开(公告)日：1989-04-12
申请号：JP24807787
申请日：1987-10-02
申请人： DIESEL KIKI CO
发明人： OKANO MASAMI
IPC分类号： G05F1/56 , H01F7/18
摘要： PURPOSE:To attain stable power supply control to a load by forming a feedback control loop for an operational amplifier through a by-pass circuit when a driving transistor (TR) is OFF. CONSTITUTION:Since the by-pass circuit 40 is connected even when the TR 4 is OFF, the feedback control loop based upon the operational amplifier 13 is formed and the voltage Vp' of the 2nd node P' is fed back, the operational amplifier 13 is not satisfied. Since the operational amplifier 13 is not satisfied and its output voltage is not high, the TR is not satisfied when the TR 4 is turned from OFF and ON in the succeeding time, overshooting with a large supply current Ia is not generated and the overshooting can be suppressed up to a negligible level. Consequently, stable power supply control to a solenoid 1 can be attained.

15. 发明专利

JPS6415453A ELECTRONIC CONTROL TYPE FUEL INJECTION DEVICE 失效
公开(公告)号：JPS6415453A
公开(公告)日：1989-01-19
申请号：JP17089387
申请日：1987-07-10
申请人： DIESEL KIKI CO
发明人： SEKIGUCHI REI , OKANO MASAMI
IPC分类号： F02D41/40 , F02D41/00
摘要： PURPOSE:To perform the reasonable control in all rotation areas and effectively perform the correction due to the fluctuation of the engine speed by changing the correcting method of the rotation fluctuation of an engine according to the quantity of the engine speed. CONSTITUTION:The target injection quantity Qt is calculated 63 based on the speed signal N obtained by property processing the first pulse signal P1 and the accelerator signal A, and the sequence number of the second pulse signal P2 outputted immediately before the opening timing of a spill valve 13 is calculated 64 based on the output signal Qt and the speed signal N. The calculated result MS and the count signal SN from a counter unit 65 air inputted to a coincidence detecting unit 67, and an H signal is outputted when both signals coincide. The time difference between the valve opening timing and the generation timing of the second pulse signal P2 immediately before it, the time data TD are corrected 69 with the correction coefficient by a correction count arithmetic unit 80 and outputted to a timing signal generating unit 70 to control a drive signal generating unit 71.

16. 发明专利

JPS61246668A FAULT DETECTOR FOR ROTARY SENSOR 失效
公开(公告)号：JPS61246668A
公开(公告)日：1986-11-01
申请号：JP8758585
申请日：1985-04-25
申请人： DIESEL KIKI CO
发明人： FUJIMORI KYOICHI , OKANO MASAMI , UENO MASATO
IPC分类号： F02D45/00 , F02B3/06 , F02N11/08 , G01P3/42 , G01P3/44
摘要： PURPOSE:To enable the detection of any disturbance both during and after the startup of an engine, by discriminating a fault in a rotary sensor based on the output state from the rotary sensor and the working condition of a hydraulic switch. CONSTITUTION:The execution of an interrupt program is monitored by a pulse making up a pulse train signal S1 being outputted from a rotary sensor 33. In case an abnormality occurs in the pulse width thereof, it is judged whether the engine runs or not from a signal S0 indicating ON or OFF state of a hydraulic switch 11 and only when the engine runs, the rotary sensor 33 is determined to be in trouble and a backup data is fed to continue the operation control of the diesel engine 2. To discriminate a disturbance of the rotary sensor 33, a checking is made to determine whether the engine 2 runs or not based on the output state of a pulse from the rotary sensor 33 and the operating condition of the hydraulic switch 11 or the like and the discrimination of a fault is done based on the results of the detection. After the complete explosion of the engine 2, the disturbance of the rotary sensor 33 can be detected even during the cranking.

17. 发明专利

JPS61141020A External feed power supply circuit 失效
标题翻译：外部供电电路
公开(公告)号：JPS61141020A
公开(公告)日：1986-06-28
申请号：JP26292684
申请日：1984-12-14
申请人： Diesel Kiki Co Ltd
发明人： OKANO MASAMI
IPC分类号： G05F1/56 , G05F1/573
CPC分类号： G05F1/573
摘要： PURPOSE:To reduce the power loss and the generation of heat by providing a start element in parallel to a switching element and impressing the voltage of an internal stabilized power supply to an external sensor (load). CONSTITUTION:Input terminals 2a and 2b of an external supply power supply circuit 2 are connected to output terminals 1a and 1b of an external stabilized power supply 1. While the emitter of a switching transistor TR2 is connected to the terminal 2a with the collector connected to an external extracting terminal 2c respectively. Furthermore a start resistance R2 is connected between the emitter and the collector of the TR2. The collector of the TR2 is connected to the base of a TR1 via a resistance R1 with the base connected to the collector of the TR1 via a resistance R3 respectively. Then the external load RL like a pressure sensor, etc. is connected to the external extracting terminals 2c and 2d of the circuit 2. Thus the TR2 becomes nonconductive when the load RL has a short circuit to produce the reduction of the voltage level. Thus the TR1 also becomes nonconductive. As a result, just a small current flows to the load RL via the resistance R2 and the power supply 1 is protected.
摘要翻译：目的：通过提供与开关元件并联的启动元件并将内部稳定电源的电压施加到外部传感器（负载）来减少功率损耗和产生热量。构成：外部供电电路2的输入端子2a，2b与外部稳定电源1的输出端子1a，1b连接。开关晶体管TR2的发射极与端子2a连接，集电极连接到外部提取端子2c。此外，启动电阻R2连接在TR2的发射极和集电极之间。 TR2的集电极通过电阻R1连接到TR1的基极，电阻R1分别通过电阻R3连接到TR1的集电极。然后，像压力传感器等的外部负载RL连接到电路2的外部提取端子2c和2d。因此，当负载RL具有短路以产生电压电平的降低时，TR2变得不导通。因此，TR1也变得不导通。结果，只有一小电流通过电阻R2流入负载RL，电源1被保护。

18. 发明专利

JPS5915640A Timer device for fuel injection pump 失效
标题翻译：燃油喷射泵定时装置
公开(公告)号：JPS5915640A
公开(公告)日：1984-01-26
申请号：JP12282982
申请日：1982-07-16
申请人： Diesel Kiki Co Ltd
发明人： FUJIMORI KIYOUICHI , OKANO MASAMI
IPC分类号： F02B3/06 , F02D1/18 , F02D41/40
CPC分类号： F02D41/401 , F02B3/06 , F02D1/183 , F02D41/408 , F02D2041/2027 , F02D2200/063 , Y02T10/44
摘要： PURPOSE: To suppress a resonant phenomenon without impairing the control stability by continuously changing the frequency of a pulse signal for driving the pressure adjusting solenoid valve of a timer device in response to the rotation speed of an engine, i.e., the rotation speed of a fuel injection pump so that no resonant phenomenon occurs at required rotation regions.
CONSTITUTION: A timer piston 7 is provided in the cylinder 6 of a timer device 4 to adjust the angular position of a roller holder 3, and the pressure applied to the timer piston 7 is controlled by a valve 16 opened or closed in response to a pulse signal from a control section 15. A resonant phenomenon occurs when the rotation number N and the frequency (f) of the pulse drive signal are at belt-like regions as shown by slant lines in the figure, thereby three characteristic curves (a), (b), (c) are prepared, and the optimum characteristic curve for each rotation number N is utilized to calculate the frequency under which no resonant phenomenon occurs.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过响应于发动机的转速（即，燃料的转速）连续地改变用于驱动定时装置的调压电磁阀的脉冲信号的频率来抑制共振现象而不损害控制稳定性注射泵，使得在所需旋转区域不发生共振现象。构成：定时器活塞7设置在定时装置4的气缸6中，以调节辊保持器3的角位置，并且施加到定时器活塞7的压力由响应于当旋转数N和脉冲驱动信号的频率（f）处于如图中的斜线所示的带状区域时，产生共振现象，由此三个特性曲线（a），（b），（c），并且利用每个旋转数N的最佳特性曲线来计算没有发生共振现象的频率。

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