• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:SU1225905A1
    申请号:SU807771582
    申请日:1980-12-24
    公开日:1986-04-23
    发明作者:Зобадки Рольф；Кунерт Герт；Пасиека Клаус
    申请人:Феб Швермашиненбау-Комбинат "Карл Либкнехт" (Инопредприятие)；
    IPC主号:
    专利说明:

    2. The device according to claim 1, characterized in that the measuring transducer is made in the form of a current transformer with a pulse generator connected in series.
    3. The device according to claim 1, characterized in that the measuring transducer is made in the form of a measuring resistor with a pulse generator connected in series.
    4. The device according to claim 1, characterized in that the measuring transducer is made in the form of a measuring resistor with an integrator.
    5. Device under item 1, characterized in that the sensor of the reference signal is made in the form of a monostable multivibrator, control
    This invention relates to mechanical engineering, in particular to internal combustion engines with an electromagnetic injector drive.
    Interlocking devices for pulse-controlled electronic circuits are known, in particular for internal combustion engines with an electromagnetic injector drive, comprising a transmitter, a safety switch, an amplifier and a voltage source, the transmitter being connected to a safety switch via an amplifier (GDR patent No. 132992, class F 02 D 5/00, 1978).
    The aim of the invention is to prevent an emergency when operating the engine.
    The goal is achieved in that the blocking device further comprises a reference signal sensor, a comparison unit and an electronic unit with a control unit and an electromagnetic injector drive circuit breaker, the transmitter on one side connected to the circuit breaker, and on the other side connected to the amplifier through the comparison unit, also connected to the reference signal sensor, which is connected to the control unit of the electronic unit, and will protect flax switch on the one hand coupled via a circuit breaker with a voltage source, and on the other side - with an electromagnetic drive injector.
    The measuring transducer is designed as a current transformer with a pulse generator connected in series.
    voltage dependent on load.
    6. The device according to claim 1, characterized in that the reference signal sensor is designed as a monostable multivibrator with a constant tipping time.
    7. The device according to claim 1, characterized in that the reference signal sensor is designed as a voltage source that is controlled depending on the load.
    8. The device according to claim 1, characterized in that the reference signal sensor is made in the form of a constant voltage source.
    9. The device according to claim 1, characterized in that the reference signal sensor is designed as a counter set to a predetermined value.
    In addition, the measuring transducer is designed as a measuring resistor with a pulse generator connected in series or as a measuring resistor with an integrator.
    The sensor of the reference signal is made in the form of a monostable multivibrator controlled by voltage depending on the load or in the form of a monostable multi vibrator with a constant tipping time.
    Moreover, the sensor of the reference signal is designed as a voltage source that is controlled depending on the load or as a constant voltage source.
    5 In addition, the sensor reference signal is made in the form of a counter set to a predetermined value.
    FIG. 1 shows a block diagram of the proposed device; in fig. 2 - output signals of individual interlock nodes
    0 devices.
    The blocking device (Fig. 1) consists of the measuring converter 1, the sensor 2 of the reference signal, the unit 3 of comparison, the amplifier 4, the safety
    5 switch 5, control unit 6 and automatic switch 7 included in the electronic unit 8, as well as voltage source 9 and electromagnetic nozzle drive 10.
    The measuring transducer 1 co0 is connected to a safety switch 5 via an amplifier 4.
    In addition, the measuring transducer 1 on the one hand connected to the circuit breaker 7, and on the other with the sensor 2 of the reference signal and connected
    5 to amplifier 4 through a comparison unit 3, also connected to the reference signal sensor 2.
    The latter is connected to the control unit 6 of the electronic unit 8, and the safety switch 5 is connected on one side through the automatic switch 7 to the voltage source 9, and on the other to the electromagnetic drive of the nozzles 10.
    The device works as follows.
    In the measuring transducer 1 with the inclusion of a monitored current, a signal is generated, the value of which corresponds to the duration of the current flow. Simultaneously with switching on the current, the sensor 2 of the reference signal generates a signal of a certain magnitude, slightly exceeding the signal specified by the control unit 4 for the corresponding load value. In the event of an erroneous signal from the control unit 4, the reference signal sensor 2 continues to automatically generate a reference signal corresponding to the full load mode. If the output signal of the measuring transducer 1 is greater than the output signal of the sensor 2 of the reference signal, then the comparison unit 3 generates an output signal that interrupts the controlled current circuit through the power amplifier 4 and the safety switch 5.
    FIG. 2 shows the output signals of individual nodes 1-5 when a measuring transducer is in the form of a current transformer with a pulse shaper or an integrator and a sensor 2 of a reference signal in the form of a monostable multivibrator for two possible modes.
    Af.
    Ki
    J
    / l5.
    A t.
    0
    five
    0
    five
    0
    The measuring transducer 1 outputs a signal proportional to the current pulse for controlling the nozzle 10 solenoid valve. In normal operation of the engine, the measuring transducer 1 forms an output signal shown in curves A that corresponds to a certain engine load for the pulse duration. The output signal produced by the sensor 2 of the reference signal has a slightly longer duration, so that the comparison unit 3 does not produce a signal, and as a result, the safety switch 5 remains closed.
    Curves B shows the signal of the measuring transducer 1 in the event of a malfunction, which exceeds the duration of the signal generated by the sensor 2 of the reference signal. At the output of the comparison unit 3, a signal is amplified which is amplified in the power amplifier 4 and is used to open the safety switch 5. As a result, the flow of current through the magnetic valve of the nozzle 10 is interrupted and thereby prevents an emergency situation of the engine and the electronic unit 8.
    Since the reference signal sensor 2 produces a reference signal varying with the engine load, in the event of a malfunction with a small engine load, the injection process, determined by the shutdown, is carried out with only a minimal increase in the amount of fuel injected.
    five
    515g.
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    55 Editor G. Volkov Order 1929/21
    .g
    Compiled by N. Ignatovich
    Tehred I. VeresKorrektor
    Circulation 523 Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries
    113035, Moscow, Zh-35 ,. Raushsk nab. 4/5
    Branch PPP "Patent, Uzhgorod, st. Design,
    权利要求:
    Claims (9)
    [1]
    1. LOCKING DEVICE FOR PULSE CONTROLLED ELECTRONIC CIRCUITS, IN PARTICULAR FOR INTERNAL COMBUSTION ENGINES with electromagnetic nozzle drive, containing a measuring transducer, a safety switch, an amplifier and a source
    Figure 1 voltage, and the measuring transducer is connected to a safety switch through an amplifier, characterized in that it further comprises a reference signal sensor, a comparison unit and an electronic unit with a control unit and a circuit breaker of the electromagnetic nozzle drive, and the measuring transducer is connected on one side to the automatic a switch, and on the other hand, with a reference signal sensor and connected to the amplifier through a comparison unit, also connected with the reference signal sensor la, which is connected to the electronic unit control unit and the safety switch on the one hand connected via an automatic switch to a voltage source, and on the other hand § - electromagnetically driven "nozzles.
    SU, „, 1225905
    [2]
    2. The device according to π. 1, characterized in that the measuring transducer is made in the form of a current transformer with a pulse shaper connected in series.
    [3]
    3. The device according to π. 1, characterized in that the measuring transducer is made in the form of a measuring resistor with a pulse shaper connected in series.
    [4]
    4. The device according to π. 1, characterized in that 10 that the measuring transducer is made in the form of a measuring 'resistor with an integrator.
    [5]
    5. The device according to π. 1, characterized in that the reference signal sensor is designed as a monostable multivibrator 15 upravlya- emogo voltage depending on the HA <Booting.
    [6]
    6. The device according to π. 1, characterized in that the reference signal sensor is made in the form of a monostable multivibrator with a constant tipping time.
    [7]
    7. The device according to π. 1, characterized in that the reference signal sensor is made in the form of a voltage source controlled depending on the load.
    [8]
    8. The device according to π. 1, characterized in that the reference signal sensor is made in the form of a constant voltage source.
    [9]
    9. The device according to π. 1, characterized in that the reference signal sensor is made in the form of a counter set to a predetermined value.
    类似技术:
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    同族专利:
    公开号 | 公开日
    DD159511A3|1983-03-16|
    DE3046073A1|1981-09-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3322073C2|1982-07-23|1991-10-17|Robert Bosch Gmbh, 7000 Stuttgart, De|
    DE3322240C2|1982-07-23|1991-12-19|Robert Bosch Gmbh, 7000 Stuttgart, De|
    DE3322074A1|1982-07-23|1984-01-26|Robert Bosch Gmbh, 7000 Stuttgart|EMERGENCY DEVICE FOR MICROCOMPUTER CONTROLLED SYSTEMS|
    ITBO20000488A1|2000-08-04|2002-02-04|Magneti Marelli Spa|METHOD FOR INJECTOR INSPECTION IN AN INTERNAL COMBUSTION ENGINE.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD21948980A|DD159511A3|1980-03-06|1980-03-06|SAFETY DEVICES FOR PULSE-CONTROLLED ELECTRONIC FUEL INJECTION DEVICES, ESPECIALLY FOR INTERNAL COMBUSTION ENGINES|
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