• 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:
    By generating a predetermined forcing signal by the duty control signal applied from the control means to start the solenoid valve and to generate the forcing signal in accordance with the signal applied from the pulse generator after the solenoid valve start, to maintain the start of the solenoid valve, Control means for outputting a duty signal, an enable signal, and a constant pulse signal for controlling a supply power applied from a battery; and a predetermined drive for converting a signal applied from the microcomputer to interrupt supply power supplied to various devices. It consists of a drive means for outputting a signal and a solenoid drive valve operated by a drive signal output from the drive means, ignoring the amount of current to be supplied to the solenoid valve drive valve, controlling only the time to supply the amount of current, the current amount is fed into the circuit Overvoltage by determining by back control The solenoid valve driving circuit has the effect of preventing the damage of the driving means due to the damage caused by the damage, and making the failure signal by using the current amount supplied to the solenoid valve for feedback control. It is to provide.
    公开号:KR19990059948A
    申请号:KR1019970080162
    申请日:1997-12-31
    公开日:1999-07-26
    发明作者:김한일
    申请人:정몽규；현대자동차 주식회사；
    IPC主号:
    专利说明:

    Solenoid valve drive
    The present invention relates to a solenoid valve driving apparatus, and more particularly, generates a predetermined forcing signal by a duty control signal applied by a microcomputer to start a solenoid valve, and according to a signal applied by a pulse generator after the solenoid valve starts. It relates to a solenoid valve drive device for generating a forcing signal to maintain the operation of the solenoid valve.
    In general, the solenoid valve driving device is to control the power supply required for the start of the solenoid valve with a predetermined electrical signal, a conventional solenoid valve driving device will be described with reference to FIG.
    First, in the microcomputer 10, a pulse signal having a predetermined period, a forcing signal S2 for initial driving, a duty signal S3 for a sustain signal, and a standby state can be released. An enable signal S4 is outputted.
    At this time, the driving drive 20 is operated by the enable signal S4, and various driving apparatuses are provided by applying a chopping signal generated by combining the pulse signal S1 and the duty signal S3 to the solenoid valve. Was driven.
    Therefore, as described above, a large number of control ports are required for outputting a control signal for controlling the solenoid valve, and the overload, wire harness failure, etc., as the control means directly controls all the battery current applied to the solenoid valve. For this reason, when the solenoid valve is burned out or the circuit of the driving means is burned out, there is no measure to prevent the burnout, and there is no separate circuit for fault detection, so that the correct value cannot be measured when measuring the voltage of the solenoid valve. there was.
    SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and its object is to ignore the amount of current to be supplied to the solenoid valve driving valve in the control means, to control only the time for supplying the amount of current, and the amount of current by the feedback control in the circuit By deciding, the damage of the driving means due to the overvoltage is fundamentally prevented, and the amount of current supplied to the solenoid valve can be measured for the feedback control, so that a fault signal can be made by using this, so that the actual fault can be detected. It is to provide a solenoid valve driving circuit.
    The present invention for achieving the above object includes a control means for outputting a duty signal, an enable signal and a constant pulse signal for controlling the supply power applied from the battery;
    Drive means for converting a signal applied from said control means and outputting a predetermined drive signal for interrupting supply power supplied to various devices;
    Characterized in that it consists of a solenoid drive valve operated by a drive signal output from the drive means.
    1 is a block diagram showing a solenoid valve driving apparatus according to an embodiment of the present invention,
    FIG. 2 is a detailed configuration circuit diagram of the solenoid valve driving device of FIG. 1. FIG.
    3 is an operation waveform diagram of a solenoid valve driving apparatus according to an embodiment of the present invention.
    Figure 4 is a block diagram showing a conventional solenoid valve drive device.
    Below. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
    As can be seen in Figure 1, the solenoid valve driving apparatus according to an embodiment of the present invention is composed of a microcomputer 100, a drive drive 200, the solenoid valve 300, the microcomputer 100 is provided A duty signal, an enable signal, and a constant pulse signal are output to control a power supply for driving various devices.
    The driving drive 200 converts a signal applied from the microcomputer 100 and outputs a predetermined driving signal for controlling supply power supplied to various devices.
    The solenoid valve 300 drives various devices that are driven and provided according to a signal applied from the drive drive 200.
    In this case, as shown in FIG. 2, the driving drive 200 includes a forcing signal generating unit 10, a solenoid valve driving unit 20, a free wheeling unit 30, a current sensing resistor 40, The current amount signal amplifying unit 50, the fault diagnosis unit 60, and the chopping section generator 70, the forcing signal generator 10 is set in advance according to the duty signal output from the microcomputer 100 A forcing signal for starting the solenoid valve is generated according to the amount of starting current.
    At this time, the forcing signal detecting unit 10 is connected to the duty terminal of the microcomputer 100, the third terminal of the clock signal input terminal, the second terminal of the signal input terminal (D) is connected to the input voltage 5V terminal Three,A first flip-flop F / F1 having a fourth terminal connected to an input power supply 5V terminal;
    Terminal 1, the input terminal, is connected to Q, the output terminal of the first flip-flop F / F1, and terminal 2, the input terminal, is connected to Q, the output terminal of the second flip-flop F / F2. A first logical OR operator OR1;
    The logical AND operator in which terminal 1, the input terminal, is connected to terminal 3, the output terminal of the first logical OR operator, and terminal 2, the input terminal, is connected to the duty terminal of the microcomputer 100 ( AND1);
    A first resistor R1 having one terminal connected to an output terminal of the first comparator OP1;
    A second resistor R2 having one terminal connected to a power supply 5V;
    A third resistor R having one terminal grounded;
    A fourth resistor R4 having one terminal connected to the other terminal of the second resistor R2 and the third resistor R3;
    A fifth resistor R5 having one terminal connected to a power supply 5V;
    Inverting input terminal is connected to the other terminal of the first resistor (R1), non-inverting input terminal is connected to the other terminal of the second resistor (R2), output terminal of the fifth resistor (R5) and the fifth A first comparator COMP1 connected to the other terminal of the fourth resistor R4;
    Terminal 4, the input terminal, is connected to the output terminal of the first comparator COMP1, and terminal 5, the input terminal, is connected to the enable terminal of the microcomputer 100, and the output terminal of the first flip-flop ( Reset of F / FIt consists of a second logical operator (AND2) connected to the terminal.
    The solenoid valve driver 20 is switched according to the signal applied from the force signal generator 10 to apply driving power for driving various devices.
    At this time, the solenoid valve driving unit 20 includes a NPN type first transistor Q1 having a base terminal connected to a third terminal which is an output terminal of the first logical operator AND1 and having an emitter terminal grounded;
    A thirteenth resistor R17 having one terminal connected to the collector terminal of the first transistor Q1;
    A fourteenth resistor R14 having one terminal connected to the battery power terminal and the other terminal connected to the thirteenth resistor R13;
    An emitter terminal connected to the battery power terminal and a base terminal connected to a coupling terminal of the thirteenth resistor (R13) and the fourteenth resistor (R14);
    The cathode (cathode) terminal is connected to the connection terminal of the thirteenth resistor (R13), the fourteenth resistor (R14) and the second transistor (Q2), and the anode (positive) terminal is the collector terminal of the second transistor (Q2). And a first zener diode ZD1 connected to the first zener diode.
    The free wheeling unit 30 continues to drive the solenoid valve 300 for a predetermined time due to the residual output from the solenoid valve 300 even when the DC duty signal output from the microcomputer 100 is turned off.
    At this time, the free wheeling unit 30 includes a fifteenth resistor R15 having one terminal connected to the duty signal terminal of the microcomputer 100;
    A PNP type third transistor Q3 having a base terminal connected to the other terminal of the fifteenth resistor R15 and a collector terminal connected to a power supply 5V;
    A sixteenth resistor R16 having one terminal connected to an emitter terminal of the third transistor Q3;
    A seventeenth resistor R17 having one terminal connected to the other terminal of the sixteenth resistor R3;
    A PNP type fourth transistor Q4 having a base terminal connected to a terminal to which the sixteenth resistor R16 and a seventeenth resistor R17 are connected, and the emitter terminal being grounded;
    An anode terminal (anode) is connected to the collector of the fourth transistor Q4, and a cathode terminal (cathode) is the seventeenth resistor R17 and the first zener diode ZD1 of the solenoid valve driver 20. A first diode (D1) connected to a coupling terminal of;
    One terminal is grounded and the other terminal is connected to the coupling terminal of the first resistor (ZD1) and the second transistor (Q2) of the 17th resistor (R17) and the first diode (D1) and the solenoid valve driver 20 It consists of one capacitor C1.
    The current sensing resistor 40 detects a current output from the solenoid valve driver 20.
    At this time, the current sensing resistor 40 is composed of one terminal is connected to the coupling terminal of the first capacitor (C1) of the freewheeling detection unit 30, the other terminal is connected to the solenoid drive valve 300. have.
    The current amount signal amplifying unit 50 amplifies the amount of current applied from the current sensing resistor 40 according to a predetermined constant amplification ratio and outputs a current amount detection signal.
    At this time, the current amount signal amplifier 50 includes a twenty-first resistor (R21) having one terminal grounded;
    One terminal is connected to the other terminal of the twenty-first resistor R21, and the other terminal is connected to the third transistor Q3 and the freewheeling detection unit of the current sensing resistor 30 and the solenoid valve driver 20. An eighteenth resistor R18 connected to a coupling terminal of the second capacitor C2 of 30;
    A nineteenth resistor (R19) having one terminal connected to a coupling terminal of the current sensing resistor (30) and the solenoid driving valve (300);
    A second capacitor C2 having one terminal connected to the coupling terminal of the eighteenth resistor R18 and the twenty-first resistor R21 and the other terminal connected to the nineteenth resistor R19;
    The cathode terminal is connected to the coupling terminal of the eighteenth resistor R18, the twenty-first resistor R21, and the second capacitor C2, and the anode terminal is coupled between the nineteenth resistor R19 and the second capacitor C2. A second diode D2 connected to the terminal;
    The anode terminal is connected to the coupling terminal of the eighteenth resistor R18, the twenty-first resistor R21, the second capacitor C2, and the second diode D2, and the cathode terminal is the nineteenth resistor R19, the second resistor. A third diode D3 connected to the coupling terminal of the capacitor C2 and the second diode D2;
    Terminal 3, the non-inverting input terminal, is connected to the coupling terminal of the 18th resistor (R18), the 21st resistor (R21), the second capacitor (C2), the second diode (D2) and the third diode (D3), A second amplifier OP2 connected to a coupling terminal of a nineteenth resistor R19, a second capacitor C2, a second diode D2, and a third diode D3;
    One terminal is connected to the coupling terminal of the 19th resistor (R19), the second capacitor (C2), the second diode (D2), the third diode (D3) and the second amplifier (OP2), the other terminal It consists of a twentieth resistor (R20) connected to the third terminal, the output terminal of the second amplifier (OP2).
    The valve failure diagnosis unit 60 outputs a failure diagnosis signal for detecting the solenoid valve failure state to the microcomputer 200 by comparing the current value applied from the current amount signal amplifying unit 50 with a set reference value.
    In the above, the solenoid failure diagnosis unit 60 includes a tenth resistor (R10) having one terminal grounded;
    A 22nd resistor R22 having one terminal connected to a feedback terminal of the microcomputer 100 and the other terminal connected to the other terminal of the tenth resistor R10;
    A ninth resistor R9 having one terminal connected to a coupling terminal of the second amplifier OP2 and the twentieth resistor R20 of the current amount signal amplifier 50;
    Terminal 2, the inverting input terminal, is connected to the coupling terminal of the tenth resistor R10 and the 22nd resistor R22, and terminal 3, the non-inverting input terminal, is connected to the other terminal of the ninth resistor R9. The first terminal OP1, which is connected and has an output terminal, includes a twenty-second resistor R22 and a feedback terminal of the microcomputer 100.
    The chopping section generation unit 70 controls the operation state of the driving transistor of the operation unit 20 of the solenoid valve to maintain the operation state of the solenoid valve according to the current value output from the current amount signal amplifying unit 50.
    In this case, the chopping section generating unit 70 includes a sixth resistor R6 having one terminal connected to the third resistor R3 of the forcing section generating circuit 10 and grounded;
    A twenty-third resistor (R23) having one terminal connected in series with the other terminal of the sixth resistor (R6);
    A twenty-fourth resistor R24 connected at one terminal to a power supply 5V and the other terminal connected to the other terminal of the twenty-third resistor R23;
    The non-inverting input terminal is connected to the other terminal of the seventh resistor R7 and the connection terminal of the twenty-third resistor R23 and the sixth resistor R6, and the inverting input terminal is the eighth resistor R8. A second comparator COMP2 connected to the other terminal of the output terminal and having an output terminal connected to a connection terminal of the twenty-fourth resistor R24 and the twenty-third resistor R23;
    Terminal 9, which is an input terminal, is connected to a connection terminal to which the second logical product AND2 of the forcing signal generator 10 and the enable terminal of the microcomputer 100 are connected, and terminal 10, which is an input terminal, is connected. A third logical operator AND3 connected to the output terminal of the second comparator COMP2;
    Terminal 11, the clock signal input terminal, is connected to the pulse generator terminal of the microcomputer 100, terminal 12, the signal input terminal D, is connected to the input voltage 5V terminal,) Input terminal is connected to input power 5V terminal and reset () Is a second flip connected to the output terminal of the third logical product AND3 and the output terminal Q is connected to the first logical sum operator OR1 of the forcing signal generator 10. It consists of flops (F / F2).
    The operation of the solenoid drive device in the present invention having the function as described above will be described with reference to FIGS. 2 and 3 as follows.
    In order to control the power supply of the battery applied to drive the solenoid valve, the microcomputer 100 may enable an enable signal such as TP1 of FIG. 3 and a pulse signal such as TP2 of FIG. 3 according to a set value set in a memory table. And outputs a duty signal such as TP3 in FIG.
    At this time, a duty signal such as TP3 of FIG. 3 applied from the microcomputer 100 is applied to terminal 3, which is the clock terminal C of the first flip-flop F / F1.
    At this time, the flip-flop (F / F1) is reset (Until the 'low' signal is applied through the terminal, the duty signal applied from the microcomputer 100 is normally output through the output terminal Q to terminal 1, which is an input terminal of the first logical OR operator.
    For example, when the 'high' signal of the duty signal applied to the microcomputer 100 is applied to the flip-flop F / F1, the flip-flop F / F1 has the same phase difference as that of the duty signal. The branch outputs a 'high' signal through the output terminal.
    On the other hand, if the duty signal applied through the output terminal of the flip-flop (F / F1) is output to the first terminal which is the input terminal of the first logical sum operator (OR1) 2 is the input terminal of the first logical sum operator (OR1) Regardless of the signal applied to terminal 1, a 'high' signal is output to the first logical sum operator AND1.
    At this time, the 'high' signal applied from the output terminal of the first logical sum operator OR1 is applied to the first terminal which is an input terminal of the logical AND operator AND1, and the duty signal of the microcomputer 100 is first logic. When applied to the second terminal, which is an input terminal of the product operator AND1, the first logical operator AND1 performs an AND operation on the signals applied to the first and second terminals, thereby converting a 'high' signal into a first transistor. Output to Q1).
    Therefore, the first transistor Q1 is 'turned on' according to the signal applied by the first logical operator AND1.
    At this time, when the first transistor Q1 is 'turned on' to apply a predetermined electrical signal to the second transistor Q2, the second transistor Q2 is 'turned on' so that the driving power supplied from the battery is a current sensing resistor. It is supplied to the solenoid valve 300 through 40.
    Accordingly, the solenoid valve 300 is 'turned on' in the second transistor Q2 in the 'high' section of the duty signal applied from the microcomputer 100 and is driven by the forcing signal as the driving signal as shown in TP6 of FIG. 6. .
    At this time, as the solenoid valve 300 is operated in accordance with the inductance of the solenoid driving current is raised as shown in TP7 of FIG.
    On the other hand, the current amount signal amplifying unit 50 detects the amount of current applied to both ends of the detection detection resistor 40 to detect the amount of current that changes according to the driving of the solenoid valve 300 is set in the second amplifier (OP2) After amplifying according to the amplification ratio, the amplified signal is applied to the forcing signal generator 10, the fault diagnosis unit 60, and the chopping section generator 70.
    In this case, the driving current of the solenoid driving valve 300 applied to the inverting terminal of the first comparator COMP1 of the forcing signal generator 10 is compared with a value greater than a set reference value set in the non-inverting terminal.
    In this case, when the driving current of the solenoid driving valve 300 applied to the inverting terminal of the first comparator COMP1 is applied to a value larger than the set reference value of the non-inverting terminal, the second comparator COMP2 generates a low signal. Is output to terminal 4, the input terminal of the second logical product AND2, via terminal 1, which is an output terminal.
    At this time, the second logical operator AND2 is a 'low' signal applied to terminal 4, which is an input terminal, and the microcomputer 100 applied to terminal 5, which is an input terminal, as shown in TP1 of FIG. Logic operation of the enable signal resets the 'low' signal to the first flip-flop (F / F1).Output to the terminal.
    At this time, the reset of the first flip-flop (F / F1) (When the 'low' signal is applied to the terminal, the first flip-flop F / F1 is initialized to output the 'low' signal through the output terminal Q.
    Accordingly, the logic operation is performed through the first logical OR operator OR1 and the first logical AND operator AND1 by 'low' applied to the fifth terminal, which is the output terminal Q of the first flip-flop F / F1. Then, a 'low' signal is applied to the first transistor Q1 through the third terminal, which is an output terminal of the first logical operator AND1.
    At this time, the first transistor Q1 is 'turned off' by the 'low' signal applied through the third terminal, which is the output terminal of the first logical operator AND1, to cut off the battery power applied to the solenoid valve. do.
    On the other hand, if the current is not applied to the solenoid valve 300 due to the battery power cut off, the free wheeling unit 30 is a third transistor in the 'high' section of the duty signal, such as TP3 of Figure 3 applied from the microcomputer 100 Q3 is 'turned off', and when the third transistor Q3 is 'turned off', the fourth transistor Q4 is 'turned on'.
    At this time, when the fourth transistor Q4 is 'turned on', the current remaining in the internal inductance of the solenoid valve 300 is freewheeled through the fourth transistor Q4 and the first diode D1. As shown in TP7 of FIG. 3, the current of the solenoid valve 300 is reduced.
    On the other hand, when the current of the solenoid valve 300 decreases below a predetermined value, that is, when the current decreases below the reference value set at the non-inverting input terminal of the second comparator COMP2, the second comparator COMP2 outputs. A 'high' signal is output to terminal 10, the input terminal of the third logical sum operator AND3, through terminal 1, which is a terminal.
    In this case, the third logical operator AND3 receives a 'high' signal applied from terminal 1, which is an output terminal of the second comparator COPM2, to terminal 10, which is an input terminal, and terminal 9, which is an input terminal. When the enable signal of the microcomputer 100 is applied, the high-signal of the second flip-flop (F / F2) is reset through the terminal 8 of the output terminal by performing an AND operation on the signals input to the two input terminals. (Output to the terminal.
    In this case, the second flip-flop F / F2 resets the 'high' signal applied from terminal 8, the output terminal of the third logical product operator AND3.When the terminal 13 is applied to terminal 13, the reset of the second flip-flop F / F2The terminal is released, and according to the signal applied to the pulse generator of the microcomputer 100, a pulse signal such as TP5 of FIG. 3 is outputted to the first logical OR operator OR1 through terminal 9 of the output terminal Q.
    In this case, the pulse signal applied through the ninth terminal which is the output terminal Q of the second flip-flop F / F2 is logiced through the first logical OR operator OR1 and the first logical AND operator AND2. The first transistor Q1 and the second transistor Q2 interlock with each other according to a pulse signal applied through a 9th terminal, which is an output terminal Q of the second flip-flop F / F2. ON 'supplies a driving current applied from the battery to the solenoid valve 300.
    On the other hand, as the solenoid valve 300 is operated, the driving current increases according to the inductance property of the solenoid, and when the increased current is larger than a set value set in the second comparator COMP2, the second comparator COMP2 ) Outputs a 'low' signal to terminal 10, the input terminal of the third logical product AND3, through terminal 1, which is an output terminal.
    In this case, the third logical operator AND3 receives a 'low' signal applied through terminal 1, which is an output terminal of the second comparator COMP2, to terminal 10, which is an input terminal, and terminal 9, which is an input terminal. When the enable signal of the microcomputer 100 is applied to the terminal, the signal applied to the input terminal is ANDed to reset the 'low' signal to the second flip-flop F / F2.Output to the terminal.
    At this time, the second flip-flop (F / F2) is initialized by the 'low' signal applied from the third logical product (AND3) to the 'low' signal through the terminal 9, the output terminal (Q) Outputs to terminal 2, the input terminal of the first logical OR operator.
    In this case, the 'low' signal applied through the ninth terminal, which is the output terminal Q of the second flip-flop F / F2, corresponds to the first logical OR operator OR1 and the first logical AND operator AND2. The first transistor (Q1) and the second transistor (Q2) are logically operated by the 'low' signal applied through terminal 9, which is the output terminal Q of the second flip-flop F / F2. Turn off to block the battery supply current applied to the solenoid valve 300.
    Accordingly, the 'turn on / off' operation of the first transistor Q1 and the second transistor Q2 is repeatedly performed while the duty signal of the microcomputer 100 is maintained to maintain the solenoid valve as shown in TP7 of FIG. 3. Apply a current.
    On the other hand, when the duty signal of the microcomputer 100 is 'low', the first transistor Q1 and the second transistor Q2 of the solenoid valve driving unit 20 are 'turned off' and the first of the free wheeling unit 30 is turned off. The four transistors Q4 are 'turned off' so that the driving current applied to the solenoid valve 300 is cut off and the maintenance section of the solenoid valve 300 is terminated.
    At this time, the counter electromotive force generated by the instantaneous discharge of the current remaining in the inductance of the solenoid valve 300 is applied to the first zener diode ZD1 of the solenoid valve driver 20 and the second transistor Q2 which is the solenoid valve driving transistor. Offset by
    In addition, the fault unit 60 may be configured to transmit a signal applied from the second amplifier OP2 of the current amount signal amplifying unit 50 to a terminal 2 which is a non-inverting input terminal of the first amplifier OP1. In comparison, a predetermined electrical signal is output to the feedback terminal of the microcomputer 100.
    At this time, the microcomputer 100 determines that the solenoid valve 300 is faulty when it is less than or equal to a set reference value according to a signal applied from the first amplifier OP1.
    In addition, when the microcomputer 100 outputs one cycle of the duty signal and then outputs the next cycle, the first flip-flop F / F1 of the forcing section generator 10 is set to output terminal Q. It outputs a 'high' signal from the terminal and performs control by repeatedly performing the driving state of the solenoid driving valve 300 in the initial stage.
    As described above, the present invention ignores the amount of current to be supplied to the solenoid valve driving valve, and controls only the time for supplying the amount of current, and the amount of current is essentially determined by the feedback control within the circuit, thereby fundamentally preventing damage to the driving means due to overvoltage. It is possible to provide a solenoid valve driving circuit having an effect that can prevent the failure and make a fault signal by using the current amount supplied to the solenoid valve for the feedback control.
    权利要求:
    Claims (9)
    [1" claim-type="Currently amended] 1. A solenoid valve driving apparatus, comprising: control means for outputting a duty signal, an enable signal, and a constant pulse signal for controlling a supply power applied from a battery;
    Drive means for converting a signal applied from said control means and outputting a predetermined drive signal for interrupting supply power supplied to various devices;
    A solenoid valve drive device, characterized in that consisting of a solenoid drive valve operated by a drive signal output from the drive means.
    [2" claim-type="Currently amended] The driving device according to claim 1, wherein the driving means comprises: a forcing signal generator for generating a forcing signal for starting the solenoid valve according to a preset starting current amount according to the duty signal output from the control means;
    A solenoid valve driver which switches according to a signal applied from the forcing signal generator and applies driving power to drive various devices;
    A freewheeling portion for continuously driving the solenoid drive valve by the residual output from the solenoid drive valve even when the duty signal output from the control means is turned off;
    A current sensing resistor that senses the current output from the solenoid valve driver and outputs the corresponding value;
    A current amount signal amplifier for amplifying and outputting a current value sensed and output by the current sensing resistor into a constant current amount signal;
    A solenoid valve fault diagnosis unit for comparing a current value output from the current amount signal amplifying unit with a reference value and outputting a signal for determining a solenoid valve fault state to a control unit;
    And a chopping section generating unit for controlling an operating state of a driving transistor of an operating unit of the solenoid valve in order to maintain an operating state of the solenoid valve according to the current value output from the amperage signal amplifying unit.
    [3" claim-type="Currently amended] The method of claim 2, wherein the forcing signal generator is connected to the duty terminal of the control means, the third terminal of the clock signal input terminal, the second terminal of the signal input terminal is connected to the input voltage 5V terminal, 4 which is a set input terminal A first flip-flop whose terminal is connected to a 5V input power source;
    A first logical sum operator in which terminal 1, the input terminal, is connected to terminal 5, the output terminal of the first flip-flop, and terminal 2, the input terminal, is connected to terminal 9, the output terminal of the second flip-flop. Wow;
    A first logical operator in which terminal 1, which is an input terminal, is connected to terminal 3, which is an output terminal of the first logical sum operator, and terminal 2, which is an input terminal, is connected to the duty terminal of the control means;
    A first resistor having one terminal connected to an output terminal of the first comparator;
    A second resistor having one terminal connected to a power supply 5V;
    A third resistor having one terminal grounded;
    A fourth resistor having one terminal connected to the other terminal of the second resistor and the third resistor;
    A fifth resistor having one terminal connected to a power supply 5V;
    An inverting input terminal is connected to the other terminal of the first resistor, a non-inverting input terminal is connected to the other terminal of the second resistor, and an output terminal is connected to the other terminal of the fifth resistor and the fourth resistor. A first comparator;
    Terminal 4, the input terminal, is connected to the output terminal of the first comparator, terminal 5, the input terminal is connected to the enable terminal of the microcomputer, and the output terminal is connected to the reset terminal of the first flip-flop A solenoid valve drive device comprising two logical operator.
    [4" claim-type="Currently amended] 3. The apparatus of claim 2, wherein the solenoid valve driving unit comprises: an NPN type first transistor having a base terminal connected to terminal 3 which is an output terminal of the first logical operator, and having an emitter terminal grounded;
    A thirteenth resistor having one terminal connected to the collector terminal of the first transistor;
    A fourteenth resistor having one terminal connected to the battery power terminal and the other terminal connected to the thirteenth resistor;
    A PNP type second transistor having an emitter terminal connected to a battery power terminal and a base terminal connected to a coupling terminal of the thirteenth and thirteenth resistors;
    A solenoid valve driving device, characterized in that the cathode terminal comprises a first zener diode connected to the connection terminal of the thirteenth resistor, the fourteenth resistor, and the second transistor, and the anode terminal of which is connected to the collector terminal of the second transistor.
    [5" claim-type="Currently amended] The freewheeling unit of claim 2, further comprising: a fifteenth resistor in which one terminal is connected to the duty signal terminal of the control unit;
    A PNP type third transistor having a base terminal connected to the other terminal of the fifteenth resistor and a collector terminal connected to a power supply 5V;
    A sixteenth resistor of which one terminal is connected to the emitter terminal of the third transistor;
    A seventeenth resistor having one terminal connected to the other terminal of the sixteenth resistor;
    A PNP type fourth transistor having a base terminal connected to a terminal to which the 16th and 17th resistors are connected, and an emitter terminal of which is grounded;
    A first diode having an anode terminal connected to the collector of the fourth transistor and a cathode terminal connected to a coupling terminal of a seventeenth resistor and a first zener diode of the solenoid valve driving unit;
    A solenoid valve driving device, characterized in that one terminal is grounded and the other terminal is formed of a first capacitor connected to a coupling terminal of a first zener diode and a second transistor of a seventeenth resistor, a first diode, and the solenoid valve driving unit.
    [6" claim-type="Currently amended] The solenoid valve driving apparatus of claim 2, wherein the current sensing resistor has one terminal connected to the coupling terminal of the first capacitor of the freewheeling sensing unit, and the other terminal connected to the solenoid driving valve.
    [7" claim-type="Currently amended] The signal amplifier of claim 2, wherein the current amount signal amplifier comprises: a twenty first resistor having one terminal grounded;
    One terminal is connected to the other terminal of the twenty-first resistor, the other terminal and the eighteenth resistor is connected to the coupling terminal of the current sensing resistor, the third transistor of the solenoid valve driving unit and the second capacitor of the freewheeling sensing unit ;
    A nineteenth resistor having one terminal connected to a coupling terminal of the current sensing resistor and the solenoid driving valve;
    A second capacitor having one terminal connected to the coupling terminal of the eighteenth resistor and the twenty-first resistor, and the other terminal connected to the nineteenth resistor;
    A second diode having a cathode terminal connected to the coupling terminal of the eighteenth resistor, the twenty-first resistor, and the second capacitor, and an anode terminal connected to the coupling terminal of the nineteenth resistor and the second capacitor;
    A third diode having an anode terminal connected to the eighteenth resistor, the twenty-first resistor, a coupling terminal of the second capacitor and the second diode, and a cathode terminal connected to the nineteenth resistor, the coupling terminal of the second capacitor and the second diode;
    Terminal 3, the non-inverting input terminal, is connected to the 18th resistor, 21st resistor, the second capacitor, and the coupling terminal of the second diode and the third diode, and terminal 2, the inverting input terminal, is the 19th resistor, the second capacitor. A second amplifier connected to the coupling terminal of the second diode and the third diode;
    One terminal is connected to the coupling terminal of the 19th resistor, the second capacitor, the second diode, the third diode and the second amplifier, and the other terminal is connected to the third resistor which is the output terminal of the second amplifier. Solenoid valve drive, characterized in that made.
    [8" claim-type="Currently amended] The solenoid failure diagnosis unit comprises: a tenth resistor (R10) having one terminal grounded;
    A twenty-second resistor having one terminal connected to a feedback terminal of the microcomputer and the other terminal connected to the other terminal of the tenth resistor;
    A ninth resistor having one terminal connected to the coupling terminal of the second amplifier and the twentieth resistor of the current amount signal amplifier;
    Terminal 2, the inverting input terminal, is connected to the coupling terminal of the 10th and 22nd resistors. Terminal 3, the non-inverting input terminal, is connected to the other terminal of the ninth resistor, and output 1, The terminal is a solenoid valve drive device, characterized in that the first amplifier is connected to the 22nd resistor and the feedback terminal of the microcomputer.
    [9" claim-type="Currently amended] The semiconductor device of claim 2, wherein the chopping section generating unit comprises: a sixth resistor having one terminal connected to a third resistor of the forcing section generating circuit and grounded;
    A twenty-third resistor having one terminal connected in series with the other terminal of the sixth resistor;
    A twenty-fourth resistor having one terminal connected to a power supply 5V and the other terminal connected to the other terminal of the twenty-third resistor;
    The non-inverting input terminal is connected to the other terminal of the seventh resistor, the connection terminal of the twenty-third resistor and the sixth resistor, the inverting input terminal is connected to the other terminal of the eighth resistor, and the output terminal is the A second comparator connected to the connection terminal of the 24th resistor and the 23rd resistor;
    Terminal 9, which is an input terminal, is connected to a connection terminal to which the second logical product operator of the forcing signal generator and an enable terminal of the microcomputer are connected, and terminal 10, which is an input terminal, is connected to an output terminal of a second comparator. A third logical operator;
    Terminal 11, the clock signal input terminal, is connected to the pulse generator terminal of the microcomputer, terminal 12, the signal input terminal, is connected with the input voltage 5V terminal, set input terminal is connected with the input power 5V terminal, and reset A solenoid valve driving device, characterized in that the terminal is connected to the output terminal of the third logical product operator, the output terminal is a second flip flop connected to the first logical sum operator of the forcing signal generator.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1997-12-31|Application filed by 정몽규, 현대자동차 주식회사
    1997-12-31|Priority to KR1019970080162A
    1999-07-26|Publication of KR19990059948A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019970080162A|KR19990059948A|1997-12-31|1997-12-31|Solenoid Valve Drive|
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