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1. 发明专利

JPS63268969A DISCRIMINATING CIRCUIT FOR NEEDLE VALVE LIFT-DETECTION SIGNAL 失效
公开(公告)号：JPS63268969A
公开(公告)日：1988-11-07
申请号：JP10113987
申请日：1987-04-25
申请人： DIESEL KIKI CO
发明人： OKANO MASAMI
IPC分类号： F02M65/00
摘要： PURPOSE:To enable an input, which continues a pulse width output of predetermined value or less, to a comparator to be completely removed as a noise, by supplying a needle valve lift-detection signal to the comparator to be changed into a pulse code. CONSTITUTION:An output from a piezo-electric element 1, which constitutes a needle valve lift sensor, is supplied through a band pass filter 2 to a comparator 3 here converted into a pulse code. And triggering a on-shot multivibrator 5 by an output of the comparator 3, an output of the one-shot multivibrator 5 and the output of the comparator 3 are supplied to an AND gate 6 performing AND (logical multiply) calculation. An output of the AND gate 6 is fed to a D flip flop 7 as a clock signal, and an output Q of the flip flop is fed to a microcomputer 12 calculating a timing value cooperatively with an input from an OR gate 8. In this way, the result is obtained substantially the same to that a detection signal, continuing an output pulse width or more of the one-shot multivibrator 5, serves as the needle valve lift-detection signal, and an input, continuing the output pulse width or less of the one-shot multivibrator 5, to the comparator 3 is completely removed as the noise.

2. 发明专利

JPS6319803A OPERATION DETECTION EQUIPMENT OF SOLENOID ACTUATOR 失效
公开(公告)号：JPS6319803A
公开(公告)日：1988-01-27
申请号：JP16293986
申请日：1986-07-12
申请人： DIESEL KIKI CO
发明人： OKANO MASAMI
IPC分类号： F02M65/00 , H01F7/18
摘要： PURPOSE:To enable detecting the operation of a solenoid actuator with a good response by detecting the vibration of a movable body generated at the time of the level change of a driving signal by responding to the output of a detection coil for being magnetically coupled with an excitation coil via the movable body in the solenoid actuator. CONSTITUTION:A detection coil 28 is provided for detecting the voltage signal corresponding to the movement of a movable body 25 in order to detect whether a solenoid valve 1 is operating as required according to a driving signal DS. The detection coil 28 is so provided as to electromagnetically be coupled with an excitation coil 24 via the movable body 25 and a waveform voltage signal which follows the movement of the movable body 25 is sent out from the detection coil 28 as a detection signal KS. When the excitation coil 24 transfers from a demagnetized state to an excited state or from the excited state to the demagnetized state, the movable body 25 is affected by a force which moves the movable body 25 in one direction or in the other direction but the movable body 25 vibrates since the movable body 25 is energized in one direction by a contracting spring 27 and the state of the vibration is reflected to the waveform of the detection signal KS from the detection coil 28.

3. 发明专利

JPS61212659A EXHAUST GAS RECIRCULATION CONTROL DEVICE FOR INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS61212659A
公开(公告)日：1986-09-20
申请号：JP5342085
申请日：1985-03-19
申请人： DIESEL KIKI CO
发明人： FUJIMORI KYOICHI , OKANO MASAMI , UENO MASATO
IPC分类号： F02M25/07 , F02D21/08 , F02M25/06
摘要： PURPOSE:To enable a device to prevent inconvenience that a case can not be discriminated from the case a trouble is generated in a control system, by limiting a target exhaust gas recirculation (EGR) rate, corrected by each parameter, to a value which can physically exist. CONSTITUTION:A control circuit 20, consisting of a microcomputer, inputs each signal of an engine speed N, load L, water temperature T and atmospheric pressure A from a sensor group 21 to be added by arithmetic values on the basis of respectively a three-dimensional map in a basic arithmetic unit 22 and correction data arithmetic units 23, 24, obtaining a target exhaust gas recirculation (EGR) rate data D. This target EGR rate D is limited on the bases of data Dmax, Dmin from arithmetic units 27, 28 by limiting units 29, 30 to within a range which can physically exist. Accordingly, if a closed loop control system is normally operated, the control circuit, changing an actual EGR rate surely in a follow-up manner to the target EGR rate D2, prevents a switch 34 from being switched to the side of a spare control signal output unit 36 by an obstable detecting unit 35.

4. 发明专利

JPH0119059B2 失效
公开(公告)号：JPH0119059B2
公开(公告)日：1989-04-10
申请号：JP12282982
申请日：1982-07-16
申请人： DIESEL KIKI CO
发明人： FUJIMORI KYOICHI , OKANO MASAMI
IPC分类号： F02B3/06 , F02D1/18 , F02D41/40

5. 发明专利

JPS61283751A MEMORY BACK-UP CIRCUIT IN CONTROL DEVICE FOR VEHICLE INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS61283751A
公开(公告)日：1986-12-13
申请号：JP12253685
申请日：1985-06-07
申请人： DIESEL KIKI CO
发明人： UENO MASATO , OKANO MASAMI , FUJIMORI KYOICHI
IPC分类号： F02D45/00
摘要： PURPOSE:To make it possible to provide a back-up power source with a simple arrangement to reduce the manufacturing cost thereof, by providing a selecting means for selecting higher one of the output voltages of a small capacity power source circuit and a main power circuit, and a changeover circuit for changing over the mode of a microcomputer into a power saving mode. CONSTITUTION:An output voltage V1 from a main electrical power source circuit 6 is fed as current voltage to a microcomputer 1 through a selecting circuit 11 to which an output voltage V2 from a backup power source circuit 12 is fed. The selecting circuit 11 selects higher level one of the voltages and delivers it to the microcomputer 1 which therefore electronically control the operation of a vehicle internal-combustion engine.

6. 发明专利

JPS62258157A FUEL INJECTION PUMP 失效
公开(公告)号：JPS62258157A
公开(公告)日：1987-11-10
申请号：JP10111286
申请日：1986-05-02
申请人： DIESEL KIKI CO
发明人： OKANO MASAMI , NAKAMURA HISASHI , SAKURANAKA TORU
IPC分类号： F02D45/00 , F02M41/12 , F02M65/00
摘要： PURPOSE:To carry out detection with high accuracy for a long time in spite of the dispersion of parts by electrically detecting a reciprocating position along the axis of the seat of a plunger spring in order to obtain the reference timing of the operation of a pump. CONSTITUTION:When a driving shaft 6 is rotated, a plunger 4 is rotatingly reciprocated due to the cooperation of a cam disk 7 and a roller holder 11, and fuel in a high pressure chamber 12 is pressurized at a defined timing, and introduced into a pump chamber 15 through an oil passage 14. In this case, two signal generators 20, 30 are provided to obtain the operating timing of a pump 1. And, the first signal generator 20 consists of a gear 21 fixed to the driving shaft 6 and a first pickup coil 22 screwed to a holder frame 11a, and obtains the rotation angle signal S1 of the plunger 4. The second signal generator 30 consists of a spring seat 10 as a pulser and a second pickup coil 32, and obtains the reference position signal S2 of the plunger 4.

7. 发明专利

JPS61281303A EXTERNAL SUPERVISORY AND CONTROL EQUIPMENT FOR ELECTRONIC CONTROL TYPE INTERNAL-COMBUSTION ENGINE EQUIPMENT 失效
公开(公告)号：JPS61281303A
公开(公告)日：1986-12-11
申请号：JP12253785
申请日：1985-06-07
申请人： DIESEL KIKI CO
发明人： UENO MASATO , OKANO MASAMI , FUJIMORI KYOICHI
IPC分类号： G05B15/02 , G01M15/00 , G01M15/04 , G05B23/02
摘要： PURPOSE:To change easily a control mode by storing in advance a program of the control mode to be forecast, in a program memory of a microcomputer, and selecting it by a signal from an external supervisory and control equipment. CONSTITUTION:An electronic control type internal-combustion engine equipment 1 is provided with an internal-combustion engine 2 and an operation control unit 3 having a digital microcomputer 4, and by this unit 3, the internal-combustion engine 2 is controlled. Also, an external supervisory and control equipment 7 which is a separate body from the equipment 1 and consists of an external control unit 5 and an input/output device 6 is provided so that its control state can be supervised and controlled. In this state, from the control unit 3 side, necessary information is sent out as the first series data to which an identification code has been affixed, and displayed on an indicator 9 by a real time. Also, to an input data from the data input device 6, an identification data for indicating a control mode of the internal-combustion engine 2 is affixed, it is sent to the control unit 3, the control mode is changed, etc. by the microcomputer 4, and a control of the internal-combustion engine 2 is executed.

8. 发明专利

JPH0641744B2 失效
公开(公告)号：JPH0641744B2
公开(公告)日：1994-06-01
申请号：JP5342085
申请日：1985-03-19
申请人： DIESEL KIKI CO
发明人： FUJIMORI KYOICHI , OKANO MASAMI , UENO MASATO
IPC分类号： F02M25/07 , F02D21/08 , F02M25/06

9. 发明专利

JPH02193743A CONTROLLER FOR VEHICLE SAFETY DEVICE 失效
公开(公告)号：JPH02193743A
公开(公告)日：1990-07-31
申请号：JP1304189
申请日：1989-01-24
申请人： DIESEL KIKI CO
发明人： OKANO MASAMI
IPC分类号： B60R21/16 , B60R22/46
摘要： PURPOSE:To conduct surely the discrimination of the existence of a collision within a required period and conduct a highly reliable control, by detecting the peak value of the positive of a speed change in response to a signal processing means, and deciding the reference level of a collision decision in accordance with this value, and conducting the comparison of a speed change level and the reference level. CONSTITUTION:In the case of a vehicle colliding with an obstackle in front due to the vehicle being hit from behind, the vehicle is accelerated once, and as a result, the speed of the vehicle is increased once, and next, deceleration is made. A peak value at the time of the positive direction change of a speed change which is generated by a vehicle speed being increased once, is detected by means of a peak value detecting means 5 based on an output from an integration means 4, and the reference level for a collision decision is determined in consideration of this detected peak value at a determining means 6. The reference level thus decided and the level of the speed change, are compared by means of a comparison means 7, and the decision of the vehicle collision is conducted based on this comparison outcome.

10. 发明专利

JPH0192510A COLLECTION AMOUNT DETECTING DEVICE FOR PARTICULATE FILTER TRAP 失效
公开(公告)号：JPH0192510A
公开(公告)日：1989-04-11
申请号：JP24589387
申请日：1987-10-01
申请人： DIESEL KIKI CO
发明人： OKANO MASAMI
IPC分类号： F01N3/02 , F01N9/00
摘要： PURPOSE:To aim at enhancing the accuracy of detection by connecting a pressure sensor selectably to the upstream and downstream sides of both filter trap and muffler disposed in an exhaust pipe from an internal combustion engine so as to measure the pressure differential across each of the filter trap and the muffler by use of only one pressure sensor. CONSTITUTION:A filter trap 2 and a muffler 4 are disposed in an exhaust pipe 1 from an internal combustion engine. In this arrangement, one pilot pipe 13a from a pressure sensor 13 is connected to the exhaust pipe 1 between the filter trap 2 and the muffler 4, and the other pilot pipe 13b is connected selectively to a plurality of pilot pipes 15, 16 through a selector valve 14. Further, the pilot pipe 15 is connected to the exhaust pipe 1 upstream of the filter trap 2 while the pilot pipe 16 is connected to the exhaust pipe 16 downstream of the muffler 4. Accordingly, it is possible to measure the pressure differential across each of the filter trap 2 and the muffler 4 by use of the pressure sensor 13 alone by changing over the selector valve 14.

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