CN104833513A - Engine test and control system based on linear detection circuit - Google Patents
Engine test and control system based on linear detection circuit Download PDFInfo
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- CN104833513A CN104833513A CN201510256740.6A CN201510256740A CN104833513A CN 104833513 A CN104833513 A CN 104833513A CN 201510256740 A CN201510256740 A CN 201510256740A CN 104833513 A CN104833513 A CN 104833513A
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Abstract
The invention discloses an engine test and control system based on a linear detection circuit, which is composed of a tested engine (1), a sensor system (3), a servo motor (2), a servo motor control system (4), a test bench PC (6), a background server (7) and a reverse-phase amplification circuit (5), wherein the sensor system (3) and the servo motor (2) are connected with the tested engine (1), the servo motor control system (4) is connected with the servo motor (2), the test bench PC (6) is connected with the servo motor control system (4), the background server (7) is connected with the test bench PC (6), and the reverse-phase amplification circuit (5) is connected with the sensor system (3). The engine test and control system disclosed by the invention is characterized in that a linear detection circuit (8) is further arranged between the reverse-phase amplification circuit (5) and the test bench PC (6). The engine test and control system can carry out linear detection processing on parameter signals of the tested engine (1), thereby preventing a phenomenon that the parameter signals are intermittent from affecting the test accuracy.
Description
Technical field
The present invention relates to a kind of engine TT&C system, specifically refer to a kind of engine TT&C system based on linear detection circuit.
Background technology
People improve constantly the reliability of automobile, the requirement of the aspect such as security and green, and engine is as the heart component of automobile, its technical merit directly has influence on the performance index such as its dynamic property, economy and discharge, and the frequency of engine breakdown is also the highest.Engine performance measuring is the Main Means judging condition of the engine quality, and be also the important content of automotive check and maintenance job, therefore engine performance measuring is more and more subject to people's attention.As the detection system of test engine performance, engine TT&C system then seems that by for important, it is detection system indispensable on car engine machine production line.But, traditional engine TT&C system its cannot well process the every engine signal collected, thus cause system to engine various performance parameters test inaccurate, affect the outgoing of engine.Therefore, a kind of high-precision engine control system is provided to be then the current task of top priority.
Summary of the invention
It tests inaccurate defect to engine parameter to the object of the invention is to overcome traditional engine TT&C system, provides a kind of engine TT&C system based on linear detection circuit.
Object of the present invention is achieved through the following technical solutions: a kind of engine TT&C system based on linear detection circuit, it comprises tested engine, the sensing system be connected with tested engine and servomotor, the servo control system be connected with servomotor, the test board PC be connected with servo control system, the background server be connected with test board PC, the see-saw circuit be connected with sensing system, is also provided with linear detection circuit between see-saw circuit and test board PC.
Further, described linear detection circuit is by detection chip U1, triode VT7, amplifier P2, one end is connected with the base stage of triode VT7, the other end is then as the resistance R14 of the input end of this linear detection circuit 8, N pole is connected with the TRIG pin of detection chip U1, the diode D8 that P pole is then connected with the collector of triode VT7 after resistance R15, one end is connected with the DIS pin of detection chip U1, the resistance R16 that the other end is then connected with the collector of triode VT7, N pole is connected with the GND pin of detection chip U1, the diode D9 that P pole is then connected with the emitter of triode VT7, and one end is connected with the TRIG pin of detection chip U1, the resistance R17 that the other end is then connected with the negative pole of amplifier P1 after resistance R18 forms, the CV pin of described detection chip U1 is connected with the emitter of triode VT7, its GND pin ground connection, OUT pin are then connected with the positive pole of amplifier P1, its RST pin is all connected with the P pole of diode D8 with VCC pin, as the output terminal of this linear detection circuit 8 while the minus earth of described amplifier P1, its output terminal are then connected with the tie point of resistance R18 with resistance R17.
Described see-saw circuit is by amplifier P1, transformer T, triode VT6, positive pole is connected with the positive pole of amplifier P1, negative pole is then as the polar capacitor C4 of the input end of this see-saw circuit, one end is connected with the positive pole of polar capacitor C4, the resistance R10 of other end ground connection, one end is connected with the negative pole of amplifier P1, the resistance R11 of other end ground connection, be serially connected in the resistance R12 between the positive pole of amplifier P1 and output terminal, N pole is connected with the base stage of triode VT6, P pole is the diode D7 of ground connection after polar capacitor C5 then, and form with the resistance R13 that polar capacitor C5 is in parallel, the positive pole of described amplifier P1 connects 10V voltage, and its output terminal is then connected with the former limit of transformer T, the P pole of described diode D7 is also connected with the secondary of transformer T, as the output terminal of this see-saw circuit while the grounded emitter of described triode VT6, its grounded collector.
Described servo control system is then by symmetrical expression field effect transistor driving circuit, and the trigger circuit be connected with symmetrical expression field effect transistor driving circuit form.Described symmetrical expression field effect transistor driving circuit is then by the first driving circuit, and the second driving circuit be connected with the first driving circuit forms.
Described first driving circuit is by triode VT1, field effect transistor Q1, field effect transistor Q2, one end is connected with the grid of field effect transistor Q2, the other end is then as the resistance R3 of the input end of this first driving circuit, the diode D1 be in parallel with resistance R3, one end is connected with the base stage of triode VT1, the resistance R1 that the other end is then connected with the P pole of diode D1, N pole is connected with the collector of triode VT1, the diode D2 of ground connection while P pole is then connected with the drain electrode of field effect transistor Q2, P pole is connected with the second driving circuit, the diode D3 that N pole is then connected with the collector of triode VT1 after resistance R2, and positive pole is connected with the N pole of diode D3, the polar capacitor C1 that negative pole is then connected with the P pole of diode D2 forms, the P pole of described diode D1 is extremely all connected with trigger circuit with N, grounded emitter, its collector of described triode VT1 are then connected with the grid of field effect transistor Q1, the drain electrode of described field effect transistor Q1 is connected with the N pole of diode D3, its source electrode is then connected with the drain electrode of field effect transistor Q2, the source electrode of described field effect transistor Q2 is then connected with the second driving circuit and trigger circuit respectively.
The second described driving circuit is by field effect transistor Q3, field effect transistor Q4, triode VT5, one end is connected with the grid of field effect transistor Q4, the other end is then as the resistance R8 of the output terminal of this second driving circuit, the diode D6 be in parallel with resistance R8, one end is connected with the base stage of triode VT5, the resistance R9 that the other end is then connected with the P pole of diode D6, N pole is connected with the collector of triode VT5, the diode D5 of ground connection while P pole is then connected with the drain electrode of field effect transistor Q4, P pole is connected with the P pole of diode D3, the diode D4 that N pole is then connected with the collector of triode VT5 after resistance R7, and positive pole is connected with the N pole of diode D4, the polar capacitor C3 that negative pole is then connected with the P pole of diode D5 forms, the P pole of described diode D6 is also connected with trigger circuit, grounded emitter, its collector of triode VT5 are then connected with the grid of field effect transistor Q3, the drain electrode of described field effect transistor Q3 is connected with the N pole of diode D4, its source electrode is then connected with the drain electrode of field effect transistor Q4, the source electrode of described field effect transistor Q4 is then connected with the source electrode of field effect transistor Q2.
Described trigger circuit are by triode VT2, triode VT3, flip chip U, the resistance R4 be in parallel with diode D1, the resistance R5 that one end is connected with the P pole of diode D1, the other end is then connected with the base stage of triode VT2, the resistance R6 of ground connection while one end is connected with the source electrode of field effect transistor Q2, the other end is then connected with the RESET pin of flip chip U, and the polar capacitor C2 that negative pole is connected with the emitter of triode VT3, positive pole is then connected with the base stage of triode VT4 forms; Grounded emitter, its collector of described triode VT2 are then connected with the N pole of diode D1; The base stage of described triode VT3 is connected with the collector of triode VT2, its collector is then connected with the collector of triode VT4; The grounded emitter of described triode VT4, its collector are then connected with the CLK pin of flip chip U and DATA pin respectively; The SET pin of described flip chip U is connected with its RESET pin, its Q2 pin is then connected with the P pole of diode D6.
In order to reach better implementation result, described flip chip U is preferably CD4013 integrated circuit, and field effect transistor Q1, field effect transistor Q2, field effect transistor Q3 and field effect transistor Q4 are all preferably enhancement mode PNP field effect transistor, detection chip U1 is then preferably NE555 integrated circuit and realizes.
The present invention comparatively prior art compares, and has the following advantages and beneficial effect:
(1) the present invention uses servomotor to drag tested engine rotation, does not burn, when not doing work, using sensor to gather related data and analyze, assessing engine performance by calculating various engine parameter at engine.
(2) the present invention does not need the resource such as fuel consumption, chilled water, saves the cost in engine testing process.
(3) the present invention is without the need to combustion process, therefore energy-saving and environmental protection more.
(4) the present invention is by the effect of see-saw circuit, can amplify the parameter signal of tested engine, and the signal that test board PC is received is more clear, accurate.
(5) the present invention is by the effect of linear detection circuit, can successionally process parameter signal, avoids signal to occur desultory existing picture, affects Engine Block Test precision.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is servo control system electrical block diagram of the present invention;
Fig. 3 is see-saw circuit structural representation of the present invention;
Fig. 4 is linear detection circuit structural representation of the present invention.
Reference numeral name in above accompanying drawing is called:
1-tested engine, 2-servomotor, 3-sensing system, 4-servo control system, 5-see-saw circuit, 6-test board PC, 7-background server, 8-linear detection circuit.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment
As shown in Figure 1, the present invention includes tested engine 1, the sensing system 3 be connected with tested engine 1 and servomotor 2, the servo control system 4 be connected with servomotor 2, the test board PC6 be connected with servo control system 4, the background server 7 be connected with test board PC6, the see-saw circuit 5 be connected with sensing system 3, in order to reach object of the present invention, the present invention is also provided with linear detection circuit 8 between see-saw circuit 5 and test board PC6.
Wherein, sensing system 3 is made up of multiple sensor, and the present embodiment preferentially adopts torque sensor, temperature sensor and vibration transducer to realize, and it is for gathering moment of torsion, the signal such as temperature and vibration of tested engine 1.Various signals when see-saw circuit 5 is for working to tested engine 1 carry out amplification process, and the signal after process is more clear.Linear detection circuit 8 then can successionally process parameter signal, avoids signal to occur desultory existing picture.Servomotor 2 works for driving tested engine 1, and by adjusting the rotating speed of servomotor 2, the present invention can test the various data of tested engine 1 under different rotating speeds.Test board PC6 is as man-machine conversation window of the present invention, tester can send instruction to servo control system 4 on test board PC6, controlled by the rotating speed of servo control system 4 pairs of servomotors 2, simultaneously, test board PC6 can also receive the various parameters of tested engine 1, and sends to background server 7.Background server 7 stores all standard parameter of tested engine 1, its real-time parameter by the tested engine 1 of contrast and canonical parameter, thus judges that whether the properties of tested engine 1 is up to standard.
Background server 7 adopts existing computing machine, and test board PC6 then adopts existing single-chip microcomputer, and servomotor 2, sensing system 3 all adopt existing technology to realize.
As shown in Figure 2, this servo control system 4 is by symmetrical expression field effect transistor driving circuit, and the trigger circuit be connected with symmetrical expression field effect transistor driving circuit form.Described symmetrical expression field effect transistor driving circuit is then by the first driving circuit, and the second driving circuit be connected with the first driving circuit forms.
Described first driving circuit is by triode VT1, field effect transistor Q1, field effect transistor Q2, one end is connected with the grid of field effect transistor Q2, the other end is then as the resistance R3 of the input end of this first driving circuit, the diode D1 be in parallel with resistance R3, one end is connected with the base stage of triode VT1, the resistance R1 that the other end is then connected with the P pole of diode D1, N pole is connected with the collector of triode VT1, the diode D2 of ground connection while P pole is then connected with the drain electrode of field effect transistor Q2, P pole is connected with the second driving circuit, the diode D3 that N pole is then connected with the collector of triode VT1 after resistance R2, and positive pole is connected with the N pole of diode D3, the polar capacitor C1 that negative pole is then connected with the P pole of diode D2 forms.The P pole of described diode D1 is extremely all connected with trigger circuit with N; Grounded emitter, its collector of described triode VT1 are then connected with the grid of field effect transistor Q1; The drain electrode of described field effect transistor Q1 is connected with the N pole of diode D3, its source electrode is then connected with the drain electrode of field effect transistor Q2; The source electrode of described field effect transistor Q2 is then connected with the second driving circuit and trigger circuit respectively.
The second described driving circuit is by field effect transistor Q3, field effect transistor Q4, triode VT5, one end is connected with the grid of field effect transistor Q4, the other end is then as the resistance R8 of the output terminal of this second driving circuit, the diode D6 be in parallel with resistance R8, one end is connected with the base stage of triode VT5, the resistance R9 that the other end is then connected with the P pole of diode D6, N pole is connected with the collector of triode VT5, the diode D5 of ground connection while P pole is then connected with the drain electrode of field effect transistor Q4, P pole is connected with the P pole of diode D3, the diode D4 that N pole is then connected with the collector of triode VT5 after resistance R7, and positive pole is connected with the N pole of diode D4, the polar capacitor C3 that negative pole is then connected with the P pole of diode D5 forms.The P pole of described diode D6 is also connected with trigger circuit; Grounded emitter, its collector of triode VT5 are then connected with the grid of field effect transistor Q3; The drain electrode of described field effect transistor Q3 is connected with the N pole of diode D4, its source electrode is then connected with the drain electrode of field effect transistor Q4; The source electrode of described field effect transistor Q4 is then connected with the source electrode of field effect transistor Q2.
Signal carries out reverse drive through field effect transistor Q3 and field effect transistor Q4 again after field effect transistor Q1 and field effect transistor Q2 drives, thus improves the control accuracy of the present invention to servomotor 2.Better drive effect to reach, described field effect transistor Q1, field effect transistor Q2, field effect transistor Q3 and field effect transistor Q4 preferentially adopt enhancement mode PNP field effect transistor to realize.
Described trigger circuit are by triode VT2, triode VT3, flip chip U, the resistance R4 be in parallel with diode D1, the resistance R5 that one end is connected with the P pole of diode D1, the other end is then connected with the base stage of triode VT2, the resistance R6 of ground connection while one end is connected with the source electrode of field effect transistor Q2, the other end is then connected with the RESET pin of flip chip U, and the polar capacitor C2 that negative pole is connected with the emitter of triode VT3, positive pole is then connected with the base stage of triode VT4 forms.Grounded emitter, its collector of described triode VT2 are then connected with the N pole of diode D1; The base stage of described triode VT3 is connected with the collector of triode VT2, its collector is then connected with the collector of triode VT4; The grounded emitter of described triode VT4, its collector are then connected with the CLK pin of flip chip U and DATA pin respectively; The SET pin of described flip chip U is connected with its RESET pin, its Q2 pin is then connected with the P pole of diode D6.In order to reach better implementation result, described flip chip U is preferably CD4013 integrated circuit to realize.
As shown in Figure 3, this see-saw circuit 5 is by amplifier P1, and transformer T, triode VT6, resistance R10, resistance R11, resistance R12, resistance R13, polar capacitor C4, polar capacitor C5 and diode D7 form.During connection, this positive pole of polar capacitor C4 is connected with the positive pole of amplifier P1, its negative pole is then as the input end of this see-saw circuit 5, one end of resistance R10 is connected with the positive pole of polar capacitor C4, its other end ground connection, one end of resistance R11 is connected with the negative pole of amplifier P1, its other end ground connection, between the positive pole that resistance R12 is then serially connected in amplifier P1 and output terminal, the N pole of diode D7 is connected with the base stage of triode VT6, its P pole then ground connection after polar capacitor C5, and resistance R13 is then in parallel with polar capacitor C5.The positive pole of described amplifier P1 connects 10V voltage, and its output terminal is then connected with the former limit of transformer T.The P pole of described diode D7 is also connected with the secondary of transformer T.As the output terminal of this see-saw circuit 5 while the grounded emitter of described triode VT6, its grounded collector.This see-saw circuit 5 can carry out amplification process to the parameter signal of tested engine 1, and the signal after process is more clear.
As shown in Figure 4, described linear detection circuit 8 is made up of detection chip U1, triode VT7, amplifier P2, diode D8, diode D9, resistance R14, resistance R15, resistance R16, resistance R17 and resistance R18.
Wherein, one end of resistance R14 is connected with the base stage of triode VT7, its other end is then as the input end of this linear detection circuit 8, the N pole of diode D8 is connected with the TRIG pin of detection chip U1, its P pole is then connected with the collector of triode VT7 after resistance R15, one end of resistance R16 is connected with the DIS pin of detection chip U1, its other end is then connected with the collector of triode VT7, the N pole of diode D9 is connected with the GND pin of detection chip U1, its P pole is then connected with the emitter of triode VT7, one end of resistance R17 is connected with the TRIG pin of detection chip U1, its other end is then connected with the negative pole of amplifier P1 after resistance R18.Meanwhile, the CV pin of described detection chip U1 is connected with the emitter of triode VT7, its GND pin ground connection, OUT pin are then connected with the positive pole of amplifier P1, its RST pin is all connected with the P pole of diode D8 with VCC pin.As the output terminal of this linear detection circuit 8 while the minus earth of described amplifier P1, its output terminal are then connected with the tie point of resistance R18 with resistance R17.In order to reach better implementation result, this detection chip U1 preferentially adopts NE555 integrated circuit to realize.This linear detection circuit 8 can carry out linear detection process to the parameter signal of tested engine 1, avoids parameter signal to occur desultory phenomenon, affects measuring accuracy of the present invention.
As mentioned above, just well the present invention can be realized.
Claims (9)
1. the engine TT&C system based on linear detection circuit, it is by tested engine (1), the sensing system (3) be connected with tested engine (1) and servomotor (2), the servo control system (4) be connected with servomotor (2), the test board PC(6 be connected with servo control system (4)), with test board PC(6) background server (7) that is connected, and the see-saw circuit (5) be connected with sensing system (3) forms, it is characterized in that: at see-saw circuit (5) and test board PC(6) between be also provided with linear detection circuit (8), described linear detection circuit (8) is by detection chip U1, triode VT7, amplifier P2, one end is connected with the base stage of triode VT7, the other end is then as the resistance R14 of the input end of this linear detection circuit (8), N pole is connected with the TRIG pin of detection chip U1, the diode D8 that P pole is then connected with the collector of triode VT7 after resistance R15, one end is connected with the DIS pin of detection chip U1, the resistance R16 that the other end is then connected with the collector of triode VT7, N pole is connected with the GND pin of detection chip U1, the diode D9 that P pole is then connected with the emitter of triode VT7, and one end is connected with the TRIG pin of detection chip U1, the resistance R17 that the other end is then connected with the negative pole of amplifier P1 after resistance R18 forms, the CV pin of described detection chip U1 is connected with the emitter of triode VT7, its GND pin ground connection, OUT pin are then connected with the positive pole of amplifier P1, its RST pin is all connected with the P pole of diode D8 with VCC pin, as the output terminal of this linear detection circuit (8) while the minus earth of described amplifier P1, its output terminal are then connected with the tie point of resistance R18 with resistance R17.
2. a kind of engine TT&C system based on linear detection circuit according to claim 1, it is characterized in that: described see-saw circuit (5) is by amplifier P1, transformer T, triode VT6, positive pole is connected with the positive pole of amplifier P1, negative pole is then as the polar capacitor C4 of the input end of this see-saw circuit (5), one end is connected with the positive pole of polar capacitor C4, the resistance R10 of other end ground connection, one end is connected with the negative pole of amplifier P1, the resistance R11 of other end ground connection, be serially connected in the resistance R12 between the positive pole of amplifier P1 and output terminal, N pole is connected with the base stage of triode VT6, P pole is the diode D7 of ground connection after polar capacitor C5 then, and form with the resistance R13 that polar capacitor C5 is in parallel, the positive pole of described amplifier P1 connects 10V voltage, and its output terminal is then connected with the former limit of transformer T, the P pole of described diode D7 is also connected with the secondary of transformer T, as the output terminal of this see-saw circuit (5) while the grounded emitter of described triode VT6, its grounded collector.
3. a kind of engine TT&C system based on linear detection circuit according to claim 2, it is characterized in that: described servo control system (4) is then by symmetrical expression field effect transistor driving circuit, and the trigger circuit be connected with symmetrical expression field effect transistor driving circuit form; Described symmetrical expression field effect transistor driving circuit is then by the first driving circuit, and the second driving circuit be connected with the first driving circuit forms.
4. a kind of engine TT&C system based on linear detection circuit according to claim 3, it is characterized in that: described first driving circuit is by triode VT1, field effect transistor Q1, field effect transistor Q2, one end is connected with the grid of field effect transistor Q2, the other end is then as the resistance R3 of the input end of this first driving circuit, the diode D1 be in parallel with resistance R3, one end is connected with the base stage of triode VT1, the resistance R1 that the other end is then connected with the P pole of diode D1, N pole is connected with the collector of triode VT1, the diode D2 of ground connection while P pole is then connected with the drain electrode of field effect transistor Q2, P pole is connected with the second driving circuit, the diode D3 that N pole is then connected with the collector of triode VT1 after resistance R2, and positive pole is connected with the N pole of diode D3, the polar capacitor C1 that negative pole is then connected with the P pole of diode D2 forms, the P pole of described diode D1 is extremely all connected with trigger circuit with N, grounded emitter, its collector of described triode VT1 are then connected with the grid of field effect transistor Q1, the drain electrode of described field effect transistor Q1 is connected with the N pole of diode D3, its source electrode is then connected with the drain electrode of field effect transistor Q2, the source electrode of described field effect transistor Q2 is then connected with the second driving circuit and trigger circuit respectively.
5. a kind of engine TT&C system based on linear detection circuit according to claim 4, it is characterized in that: the second described driving circuit is by field effect transistor Q3, field effect transistor Q4, triode VT5, one end is connected with the grid of field effect transistor Q4, the other end is then as the resistance R8 of the output terminal of this second driving circuit, the diode D6 be in parallel with resistance R8, one end is connected with the base stage of triode VT5, the resistance R9 that the other end is then connected with the P pole of diode D6, N pole is connected with the collector of triode VT5, the diode D5 of ground connection while P pole is then connected with the drain electrode of field effect transistor Q4, P pole is connected with the P pole of diode D3, the diode D4 that N pole is then connected with the collector of triode VT5 after resistance R7, and positive pole is connected with the N pole of diode D4, the polar capacitor C3 that negative pole is then connected with the P pole of diode D5 forms, the P pole of described diode D6 is also connected with trigger circuit, grounded emitter, its collector of triode VT5 are then connected with the grid of field effect transistor Q3, the drain electrode of described field effect transistor Q3 is connected with the N pole of diode D4, its source electrode is then connected with the drain electrode of field effect transistor Q4, the source electrode of described field effect transistor Q4 is then connected with the source electrode of field effect transistor Q2.
6. a kind of engine TT&C system based on linear detection circuit according to claim 5, it is characterized in that: described trigger circuit are by triode VT2, triode VT3, flip chip U, the resistance R4 be in parallel with diode D1, one end is connected with the P pole of diode D1, the resistance R5 that the other end is then connected with the base stage of triode VT2, one end is connected with the source electrode of field effect transistor Q2, the resistance R6 of ground connection while the other end is then connected with the RESET pin of flip chip U, and negative pole is connected with the emitter of triode VT3, the polar capacitor C2 that positive pole is then connected with the base stage of triode VT4 forms, grounded emitter, its collector of described triode VT2 are then connected with the N pole of diode D1, the base stage of described triode VT3 is connected with the collector of triode VT2, its collector is then connected with the collector of triode VT4, the grounded emitter of described triode VT4, its collector are then connected with the CLK pin of flip chip U and DATA pin respectively, the SET pin of described flip chip U is connected with its RESET pin, its Q2 pin is then connected with the P pole of diode D6.
7. a kind of engine TT&C system based on linear detection circuit according to claim 6, is characterized in that: described flip chip U is CD4013 integrated circuit.
8. a kind of engine TT&C system based on linear detection circuit according to claim 7, is characterized in that: described field effect transistor Q1, field effect transistor Q2, field effect transistor Q3 and field effect transistor Q4 are enhancement mode PNP field effect transistor.
9. a kind of engine TT&C system based on linear detection circuit according to any one of claim 1 ~ 6, is characterized in that: described detection chip U1 is NE555 integrated circuit.
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| CN201510256740.6A CN104833513A (en) | 2015-05-19 | 2015-05-19 | Engine test and control system based on linear detection circuit |
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| CN201510256740.6A CN104833513A (en) | 2015-05-19 | 2015-05-19 | Engine test and control system based on linear detection circuit |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06280668A (en) * | 1993-03-30 | 1994-10-04 | Nippondenso Co Ltd | Processor for signal of knock sensor |
| US5408863A (en) * | 1993-04-15 | 1995-04-25 | Hughes Aircraft Company | Knock detector for internal combustion engine |
| CN2282602Y (en) * | 1995-04-05 | 1998-05-27 | 胡洪清 | Protector for IC engine |
| WO2005114141A2 (en) * | 2004-05-07 | 2005-12-01 | Snap-On Incorporated | Decoding an alternator output signal |
| CN1884992A (en) * | 2005-06-22 | 2006-12-27 | 上海华依科技发展有限公司 | Engine testing system and testing method thereof |
| CN201229197Y (en) * | 2008-06-20 | 2009-04-29 | 宝山钢铁股份有限公司 | Filter arrangement for vortex flow sensor detecting system |
-
2015
- 2015-05-19 CN CN201510256740.6A patent/CN104833513A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06280668A (en) * | 1993-03-30 | 1994-10-04 | Nippondenso Co Ltd | Processor for signal of knock sensor |
| US5408863A (en) * | 1993-04-15 | 1995-04-25 | Hughes Aircraft Company | Knock detector for internal combustion engine |
| CN2282602Y (en) * | 1995-04-05 | 1998-05-27 | 胡洪清 | Protector for IC engine |
| WO2005114141A2 (en) * | 2004-05-07 | 2005-12-01 | Snap-On Incorporated | Decoding an alternator output signal |
| CN1884992A (en) * | 2005-06-22 | 2006-12-27 | 上海华依科技发展有限公司 | Engine testing system and testing method thereof |
| CN201229197Y (en) * | 2008-06-20 | 2009-04-29 | 宝山钢铁股份有限公司 | Filter arrangement for vortex flow sensor detecting system |
Non-Patent Citations (2)
| Title |
|---|
| 贺忠海: "《医学电子仪器设计》", 30 April 2014, 北京：机械工业出版社 * |
| 马积勋等: "《电子技术基础》", 31 August 2008, 西安交通大学出版社 * |
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Application publication date: 20150812 |