CN103807075A - Self-detection circuit for installation integrity of multiple execution mechanisms - Google Patents
Self-detection circuit for installation integrity of multiple execution mechanisms Download PDFInfo
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- CN103807075A CN103807075A CN201410044759.XA CN201410044759A CN103807075A CN 103807075 A CN103807075 A CN 103807075A CN 201410044759 A CN201410044759 A CN 201410044759A CN 103807075 A CN103807075 A CN 103807075A
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Abstract
The invention relates to a self-detection circuit for installation integrity of multiple execution mechanisms. The self-detection circuit can ensure the installation integrity of three execution mechanisms of an acceleration valve, a switchover valve and an MKT valve with the fewest channels, and meanwhile the control execution circuit of the acceleration valve, the switchover valve and the MKT valve is not influenced. The self-detection circuit comprises an acceleration valve and switchover valve control input module, an acceleration valve and switchover valve self-detection input module, an MKT valve self-detection circuit control input module and a self-detection output module. The acceleration valve and switchover valve control input module enables input voltage signals to be reverse, a NOR gate is adopted as self-detection circuit output through the self-detection circuit output module, acceleration valve, switchover valve and MKT valve control output is used as self-detection signal input signals, a photoelectric coupler is used for isolating input signals from output signals, and when the acceleration valve, the switchover valve and the MKT valve are installed properly, self-detection signals output low levels, and the execution mechanisms are installed properly. When any execution mechanism is not installed or connected, the self-detection signals output high levels.
Description
Technical field
The invention belongs to engine oil control technique field, the wide medium temperature that is applied to the pre-supercharging of pressed engine band responds fuel feeding control technique fast, relates to a kind of multiple actuator integrity self-checking circuit is installed.
Background technique
Electronic controller internal circuit level of integration is high, and printed board area is little, for saving space, meets controller function complete simultaneously, simultaneously can not phase mutual interference between each function.In prior art, publication number is the Chinese patent that CN101907195A, denomination of invention are " a kind of self-inspection type intelligent electric actuator for valve ", control circuit comprises central processing unit, actuator's driver element and display unit, described control circuit also comprises speed and position detection unit and torque detecting unit, described speed and position detection unit be for detection of motor speed and revolution, and testing result is delivered to central processing unit, described torque detecting unit is for detection of the moment of torsion of load suffered on motor output shaft, and testing result is delivered to central processing unit, described central processing unit comprises timer, data processing system, torque threshold storage, valve location storage and comparator, described timer is for generation of the time cardinal sum timing of various periodicity actions, the maximum value of described torque threshold storage for storing load torque suffered on motor output shaft, as exceed this value and just think that valve is stuck, described valve location storage is for storing the position when early gate, described comparator is for the load torque that detects more in real time and the size of torque threshold storage numerical value, described control circuit is also provided with remote data communication mouth and/or infrared data communication port.But this invention cannot be carried out for multiple execution architectures the self check of integrity, do not affect again executive circuit simultaneously.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of multiple actuator integrity self-checking circuit is installed, the self-checking circuit that solves acceleration valve, changing valve, three kinds of actuators' installation integrity of MKT valve with minimum passage, does not affect acceleration valve, changing valve, MKT valve control executive circuit simultaneously.
Integrity self-checking circuit is installed by the plurality of actuator, comprises acceleration valve changing valve control inputs module, acceleration valve changing valve self check load module, MKT valve self-checking circuit control inputs module, self check output module; Acceleration valve changing valve control inputs module, acceleration valve changing valve self check load module, MKT valve self-checking circuit control inputs module are connected with self check output module respectively; Acceleration valve changing valve control inputs module is done the voltage signal of input oppositely, self check output module is by using NOR gate to export as self-checking circuit, with acceleration valve, transform valve, the control of MKT valve and export as self-test signal input signal, carry out input signal and output signal isolation by photo coupler, acceleration valve, changing valve, MKT valve are installed when intact, self-test signal output low level, illustrates that actuator's installation is intact; Have any actuator not install or do not connect, self-test signal is output as high level.
Beneficial effect of the present invention:
The present invention carries out the isolation of input signal and output signal by photo coupler, realizes and integrity self check is installed does not affect actuator's work simultaneously completing actuator.Acceleration valve, changing valve, MKT valve are installed when intact, and self-test signal output low level illustrates that actuator installs intact; Have any actuator not install or do not connect, self-test signal is output as high level.Judge actuator's installation integrity by low and high level.
Accompanying drawing explanation
Fig. 1 acceleration valve changing valve control inputs module circuit diagram;
Fig. 2 acceleration valve changing valve self check load module circuit diagram;
Fig. 3 MKT valve self-checking circuit control inputs module circuit diagram;
Fig. 4 self check output module circuit diagram.
Embodiment
Below in conjunction with accompanying drawing, the invention will be described further.
As shown in Figure 1, in acceleration valve changing valve control inputs module power supply just (27V) be connected with acceleration valve one end, the other end is connected with diode (2CK84D) D2012 negative terminal, diode D2012 anode is connected with collector electrode, the collector resistance R2134 of triode Q2014 (3DK14E), acceleration valve one end of triode Q2013 (3DK14E), and resistance R 2134 the other ends are connected with the pin 3 of photo coupler N1 (GH302-4).Acceleration valve input control signal is connected with base stage, diode D2011 (2CK84D) negative terminal of triode Q2013.Photo coupler N1 pin 4 is connected with power-(27V).The emitter of triode Q2013 is connected with triode Q2014 base stage, the emitter of triode Q2014 is connected with one end, power-(27V), the diode D2011 anode of resistance R 2082, VCC (power supply 5V and resistance R 2125(1K) one end is connected, resistance R 2125 and photo coupler N1(GH302-4) pin one 4, U2014(54LS27) pin one is connected, GND (power supply 5V ground) with photo coupler N1(GH302-4) pin one 3 is connected.When acceleration valve is installed when intact, acceleration valve input control signal input >5V voltage, photo coupler N1 does not work, and acceleration valve self check input signal is high level.When acceleration valve is installed when intact, acceleration valve input control signal input <5V voltage, photo coupler N1 work,, acceleration valve self check input signal is low level.In the time that acceleration valve is not installed, no matter acceleration valve input control signal is input as how much voltage, and photo coupler N1 does not work,, acceleration valve self check input signal is low level.
As shown in Figure 2, in acceleration valve changing valve self check load module power supply just (27V) be connected with changing valve one end, the other end is connected with diode (2CK84D) D2014 negative terminal, diode D2014 anode is connected with collector electrode, the collector resistance R2134 of triode Q2016 (3DK14E), changing valve one end of triode Q2015 (3DK14E), and resistance R 2136 the other ends are connected with the pin 5 of photo coupler N1 (GH302-4).Changing valve input control signal is connected with base stage, diode D2013 (2CK84D) negative terminal of triode Q2015.Photo coupler N1 pin 6 is connected with power-(27V).The emitter of triode Q2015 is connected with triode Q2016 base stage, and the emitter of triode Q2016 is connected with one end, power-(27V), the diode D2013 anode of resistance R 2083.VCC (power supply 5V and resistance R 2137(1K) one end is connected, resistance R 2137 and photo coupler N1(GH302-4) pin one 2, U2014(54LS27) pin two is connected, GND (power supply 5V ground) with photo coupler N1(GH302-4) pin one 1 is connected.Install when intact when changing valve, add conversion input control signal input >5V voltage, photo coupler N1 does not work, and changing valve self check input signal is high level.When changing valve is installed when intact, changing valve input control signal input <5V voltage, photo coupler N1 work,, changing valve self check input signal is low level.In the time that changing valve is not installed, no matter changing valve input control signal is input as how much voltage, and photo coupler N1 does not work,, changing valve self check input signal is low level.
As shown in Figure 3, MKT valve self-checking circuit control inputs module resistance R 2080(39 Ω) just (27V), MKT valve one end are connected with power supply in one end, the other end is connected with diode (1N5401) D2010 negative terminal, diode D2010 anode is connected with collector electrode, the collector electrode of triode Q2012 (3DK35E), resistance R 2132, MKT valve one end of triode Q2011 (3DK14E), and resistance R 2132 the other ends are connected with the pin one of photo coupler N1 (GH302-4).Base stage, the resistance R 2078(120 Ω of MKT input control signal and triode Q2011) one end is connected.The emitter of triode Q2011 is connected with triode Q2012 base stage, one end and the photo coupler N1(GH302-4 of the emitter of triode Q2012 and resistance R 2078) pin two and power-(27V) be connected, VCC (power supply 5V and resistance R 2123(1K) one end is connected, resistance R 2123 and photo coupler N1(GH302-4) pin one 6, U2014(54LS27) pin one 3 is connected, GND (power supply 5V ground) with photo coupler N1(GH302-4) pin one 5 is connected.When MKT valve is installed when intact, MKT valve input control signal input >5V voltage, PRWN2 place is low voltage, photo coupler N1 does not work,, MKT valve self check input signal is high level.When MKT valve is installed when intact, MKT valve input control signal input <5V voltage, PRWN2 place is high voltage, photo coupler N1 works,, MKT valve self check input signal is low level.In the time that MKT valve is not installed, no matter MKT valve input control signal is input as how much voltage, and PRWN2 place is high voltage, and photo coupler N1 does not work,, MKT valve self check input signal is low level.
As shown in Figure 4, when in self check output module, MKT valve self check input signal, changing valve self check input signal, three signals of acceleration valve self check input signal are input as low level, self check output signal is high level; When MKT valve self check input signal, changing valve self check input signal, three signals of acceleration valve self check input signal are inputted any signal and are high level, self check output signal is low level.
Claims (4)
1. integrity self-checking circuit is installed by Duo Ge actuator, it is characterized in that: comprise acceleration valve changing valve control inputs module, acceleration valve changing valve self check load module, MKT valve self-checking circuit control inputs module, self check output module; Acceleration valve changing valve control inputs module, acceleration valve changing valve self check load module, MKT valve self-checking circuit control inputs module are connected with self check output module respectively; Acceleration valve changing valve control inputs module is done the voltage signal of input oppositely, self check output module is by using NOR gate to export as self-checking circuit, with acceleration valve, transform valve, the control of MKT valve and export as self-test signal input signal, carry out input signal and output signal isolation by photo coupler, acceleration valve, changing valve, MKT valve are installed when intact, self-test signal output low level, illustrates that actuator's installation is intact; Have any actuator not install or do not connect, self-test signal is output as high level.
2. integrity self-checking circuit is installed by multiple actuator as claimed in claim 1, it is characterized in that: in acceleration valve changing valve control inputs module, power supply is just connected with acceleration valve one end, the other end is connected with diode negative terminal, diode anode is connected with collector electrode, resistance, acceleration valve one end of triode respectively, and the resistance the other end is connected with the pin 3 of photo coupler; Acceleration valve input control signal is connected with base stage, the diode negative terminal of triode; Photo coupler pin 4 is connected with power-; The emitter of triode is connected with one end, power-, the diode anode of resistance respectively, and resistance is connected with photo coupler pin one 4, pin one.
3. integrity self-checking circuit is installed by multiple actuator as claimed in claim 1 or 2, it is characterized in that: in acceleration valve changing valve self check load module, power supply is just connected with changing valve one end, the other end is connected with diode negative terminal respectively, diode anode is connected with collector electrode, resistance, changing valve one end of triode, and the resistance the other end is connected with the pin 5 of photo coupler; Changing valve input control signal is connected with base stage, the diode negative terminal of triode; Photo coupler pin 6 is connected with power-; The emitter of triode is connected with one end of resistance, power-, diode anode; Resistance is connected with photo coupler pin one 2, pin two.
4. integrity self-checking circuit is installed by multiple actuator as claimed in claim 1 or 2, it is characterized in that: in MKT valve self-checking circuit control inputs module, resistance one end and power supply are just, MKT valve one end is connected, the other end is connected with diode negative terminal, diode anode is connected with collector electrode, resistance, MKT valve one end of triode, and the resistance the other end is connected with the pin one of photo coupler; MKT input control signal is connected with base stage, resistance one end of triode; The emitter of triode is connected with pin two and the power-of one end of resistance and photo coupler, and resistance is connected with photo coupler pin one 6, pin one 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410044759.XA CN103807075B (en) | 2014-02-07 | 2014-02-07 | Integrity self-checking circuit is installed by a kind of multiple actuator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410044759.XA CN103807075B (en) | 2014-02-07 | 2014-02-07 | Integrity self-checking circuit is installed by a kind of multiple actuator |
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| CN103807075A true CN103807075A (en) | 2014-05-21 |
| CN103807075B CN103807075B (en) | 2016-02-03 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1046845A2 (en) * | 1999-04-20 | 2000-10-25 | Georg Fischer Rohrleitungssysteme AG | Valve assembly |
| CN101907195A (en) * | 2010-09-06 | 2010-12-08 | 特福隆集团有限公司 | Self-inspection type intelligent electric actuator for valve |
| CN102425701A (en) * | 2011-09-28 | 2012-04-25 | 于邦仲 | Driving device of double electric control valve and method thereof |
| CN102777666A (en) * | 2012-07-31 | 2012-11-14 | 河南汉威电子股份有限公司 | Electromagnetic valve control circuit and electromagnetic valve closing self-checking method thereof |
| CN102777665A (en) * | 2012-07-31 | 2012-11-14 | 河南汉威电子股份有限公司 | Solenoid valve control circuit and solenoid valve switch-in self-checking method thereof |
-
2014
- 2014-02-07 CN CN201410044759.XA patent/CN103807075B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1046845A2 (en) * | 1999-04-20 | 2000-10-25 | Georg Fischer Rohrleitungssysteme AG | Valve assembly |
| CN101907195A (en) * | 2010-09-06 | 2010-12-08 | 特福隆集团有限公司 | Self-inspection type intelligent electric actuator for valve |
| CN102425701A (en) * | 2011-09-28 | 2012-04-25 | 于邦仲 | Driving device of double electric control valve and method thereof |
| CN102777666A (en) * | 2012-07-31 | 2012-11-14 | 河南汉威电子股份有限公司 | Electromagnetic valve control circuit and electromagnetic valve closing self-checking method thereof |
| CN102777665A (en) * | 2012-07-31 | 2012-11-14 | 河南汉威电子股份有限公司 | Solenoid valve control circuit and solenoid valve switch-in self-checking method thereof |
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| CN103807075B (en) | 2016-02-03 |
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