CN103712663B - Engine fuel consumption quantity measurement apparatus and measuring method - Google Patents
Engine fuel consumption quantity measurement apparatus and measuring method Download PDFInfo
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- CN103712663B CN103712663B CN201310741470.9A CN201310741470A CN103712663B CN 103712663 B CN103712663 B CN 103712663B CN 201310741470 A CN201310741470 A CN 201310741470A CN 103712663 B CN103712663 B CN 103712663B
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- 239000007788 liquid Substances 0.000 claims abstract description 30
- 239000010705 motor oil Substances 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000007493 shaping process Methods 0.000 claims description 22
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- 239000000203 mixture Substances 0.000 claims description 10
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- 238000004891 communication Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 230000001052 transient effect Effects 0.000 claims description 6
- 230000005856 abnormality Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000002828 fuel tank Substances 0.000 claims description 3
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- 238000010586 diagram Methods 0.000 description 3
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- 238000005516 engineering process Methods 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
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- 239000012530 fluid Substances 0.000 description 1
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- 238000000465 moulding Methods 0.000 description 1
- 235000015927 pasta Nutrition 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
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Abstract
Engine fuel consumption quantity measurement apparatus and measuring method, belong to engine fuel detection apparatus field.Service tank (11) is set, engine oil inlet pipe (5) is connected with electromotor with electromotor flowline (6) one end, the other end inserts in service tank (11), on service tank (11) top, high level sensor (8) is set, arrange low liquid level sensor (9) in service tank (11) bottom, service tank (11) is connected with electromotor large tank (13) by oil pipe (2).Measuring method is: after system electrification, it is judged that whether electromotor runs；Judge whether power down；Detect whether high oil level signal；Detect whether low oil level signal, controlled the most accordingly.Use service tank, and oil inlet quantity is carried out examinations and control.Can accurately measure engine oil consumption, low cost, effectively solve engine oil return pulsation and containing alveolate problem, measure the advantages such as real-time is good.
Description
Technical field
A kind of engine fuel consumption quantity measurement apparatus and measuring method, belong to engine fuel detection apparatus field.Special
Not being applicable to engine fuel is liquid.
Background technology
Fuel price the most high, and country advocates under the background of conservation-minded society, it is provided that engine fuel consumption
Amount contributes to understanding engine fuel consumption, it is also possible to provide a survey tool for saving fuel oil.Existing engine fuel disappears
Consumption amount detecting device mainly use measurement fuel tank in Fuel Oil Remaining to calculate diesel engine fuel consumption, this mode certainty of measurement is the highest
And poor real.Existing engine fuel consumption quantity detection device, with two flow transducers, is separately mounted to diesel engine
In machine oil-feed and fuel-displaced oil pipe, deduct the oil pump capacity of measurement with the oil inlet quantity measured and obtain the diesel consumption of Diesel engine
Amount.The shortcoming existed, with two flow transducers, cost is greatly improved, and engine oil return is pulsation, it is possible to containing gas
Bubble, it is impossible to accurately measure.Engine oil return flow is less, and general flow transducer cannot be measured, sending out particularly with small displacement
Motivation.There is the problems such as precision is the highest and relatively costly in the most existing engine fuel consumption quantity measurement apparatus.Design
One can accurately measure engine oil consumption, low cost, effectively solves engine oil return pulsation and containing alveolate problem.With
And the good measuring method of fuel consumption real-time is extremely important.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, it is provided that one can accurately be measured and start
Oil Consumption, low cost, effectively solves engine oil return pulsation and the engine fuel consumption quantity containing alveolate problem is measured
Device and the good measuring method of real-time.
The invention solves the problems that its technical problem be the technical scheme is that this engine fuel consumption quantity measurement apparatus,
Including electric oil pump, engine oil inlet pipe and electromotor flowline, it is characterised in that: service tank, engine oil inlet pipe are set
Being connected with electromotor with electromotor flowline one end, the other end inserts in service tank, arranges high level on service tank top
Sensor, arranges low liquid level sensor in service tank bottom, and service tank is connected with electromotor large tank by oil pipe, oil pipe
Upper installation the first check valve, flow transducer and the second check valve, the second check valve be arranged in electromotor large tank and with electricity
Dynamic oil pump is connected, controller module and flow transducer, the first check valve, high level sensor, low liquid level sensor and second
Check valve is connected.
Described controller includes that battery voltage sensing module, Bus-Speed Monitoring module, flow detection module, oil pump drive mould
Block, intelligent control module are connected with vehicle speed sensor with clock module, Bus-Speed Monitoring module, battery voltage sensing module and battery
Two ends are connected, and flow detection module is connected with liquid flow sensor, and oil pump drives module to be connected with oil pump, Bus-Speed Monitoring mould
Block, battery voltage sensing module, flow detection module, oil pump drive module, clock module to be all connected with intelligent control module.
Described intelligent control module includes that microprocessor U1 and peripheral circuit, microprocessor U1 are single-chip microcomputer, micro-process
The 7 of device U1,8 feet two ends with crystal oscillator X1 respectively are connected, and by electric capacity C4, C5 ground connection, the 9 of microprocessor U1,11 feet are respectively
By electric capacity C6, C7 ground connection, the 10 of microprocessor U1,33 feet ground connection respectively；
3 feet of microprocessor U1 are reset pin, then start reset signal after receiving high level signal a period of time；
7 feet of microprocessor U1 and 8 feet receive the waveshape signal of crystal oscillator X1；
12 feet of microprocessor U1 and 13 foot output low level or high level signals；
18 feet of microprocessor U1 are interrupt signal；
The 20 foot I of microprocessor U12C communication protocol communication data；
28 foot output low level or the high level signals of microprocessor U1；
35 feet of microprocessor U1 and 36 feet receive low level or high level signal；
38 feet of microprocessor U1 and 37 feet send data and clock signal to 5 feet of storage chip U2 and 6 human hair combing wastes respectively；
40 feet of microprocessor U1 send clock signal to 7 human hair combing wastes of clock chip U4, when 41 feet of microprocessor U1 receive
High level that 6 human hair combing wastes of clock chip U4 send and low level alternating signal, if after noting abnormalities, 5 feet of clock chip U4 are to micro-place
42 human hair combing wastes of reason device U1 send high level signal, make microprocessor U1 reset；
Electrification reset chip U3 constitutes electrification reset unit, and 3,8 feet of electrification reset chip U3 meet power supply VCC, and 4 feet connect
Ground, 7 feet are connected with 3 feet of microprocessor U1；
Clock chip U4 and peripheral circuit makeup time signal element；
The 2 of clock chip U4,3 feet connect with crystal oscillator X3 two ends and pass through electric capacity C2, C3 ground connection, 1 foot of clock chip U4
Connecting with power supply VCC and pass through electric capacity C1 ground connection, 8 feet of clock chip U4 connect with battery BT1 positive pole, the negative pole of battery BT1
Connect with ground, the 5 of clock chip U4,6,7 feet are connected with 42,41,40 feet of microprocessor U1；
Storage chip U2 constitutes memory element；The 1 of storage chip U2,2,3,7,4 foot ground connection, 8 feet of storage chip U2 connect
Power supply VCC, the 5 of storage chip U2,6 feet connect the 38 of microprocessor U1,37 feet；
Shaping chip U5, optocoupler OP1 form GES detector unit, and optocoupler OP1 input is believed with vehicle speed pulse respectively
Number and power supply VCC connect, outfan connects with 1 foot and the power supply VCC of shaping chip U5 respectively, 7,14,2 points of shaping chip U5
Not with power supply VCC, and 36 feet of microprocessor U1 connect；
Shaping chip U6 and optocoupler OP2 constitutes flow signal detector unit；Optocoupler OP2 input respectively with flow signal and
Power supply VCC connects, and the outfan of optocoupler OP2 connects with 1 foot and the power supply VCC of shaping chip U6 respectively, shaping chip U6 7,
14,2 respectively with power supply VCC, and 35 feet of microprocessor U1 connect；
Optocoupler OP4 and high level sensor signal form high oil level signal detector unit；Optocoupler OP4 input respectively with height
Liquid level sensor signal and power supply VCC connect, and outfan 12 feet with power supply VCC and microprocessor U1 respectively connect；
Optocoupler OP5 and low liquid level sensor signal composition low oil level detecting signal unit, optocoupler OP5 input is respectively with low
Liquid level sensor signal and power supply VCC connect, and outfan 13 feet with power supply VCC and microprocessor U1 respectively connect；
Operational amplifier U7 and battery voltage sensing module signal composition battery voltage signal detector unit；
The positive input terminal of operational amplifier U7 is connected with battery voltage sensing module signal by resistance R4, and passes through resistance
R5 ground connection, the negative input end of operational amplifier U7 is connected with outfan, and power end is connected with power supply VCC, and ground end is connected to the ground, and
Being connected with outfan by diode TVS1, the outfan of operational amplifier U7 connects with 20 feet of microprocessor U1；
Operational amplifier U8 and 5V supply voltage signal composition low voltage test unit；
The positive input terminal of operational amplifier U8 is connected by resistance R6 and 5V supply voltage signal, and is connect by resistance R7
Ground, the negative input end of operational amplifier U8 is connected with outfan, and power end is connected with power supply VCC, and ground end is connected to the ground and passes through
Diode TVS2 is connected with outfan, and the outfan of operational amplifier U8 connects with 18 feet of microprocessor U1.
A kind of measuring method of the engine fuel consumption quantity measurement apparatus utilized described in claim 1, it is characterised in that:
A) system initialization self-inspection, it is judged that whether electromotor runs；
If b) electromotor does not runs, storing this cycle has run time, distance travelled, continues back to electromotor and enters
Row judges, if electromotor runs, then enters whether power down judges；
C) if it is, store this cycle oil pump state when having run time, distance travelled and power down, if it is not, then read
Take oil pump power-down state and remove；
D) judge electric pump state, if electric pump state is for opening, then open oil pump, detected whether high pressure oil level signal；
If e) electric pump state is for closing, then detects whether low oil level signal, if the judgment is Yes, then opened oil pump, and
Continue back to step d), if NO, then keep oil pump state constant；
F) judge whether it is high oil level signal testing result, if it is, close oil pump, enter and calculate operation time, OK
Sail mileage and fuel consumption；
G) average fuel consumption (L/100Km, L/H) is calculated；
H) display oil consumption, then returnes to a) enter next one circulation.
The present invention measures the principle of fuel oil consumption:
This device is used in automobile engine, and when electromotor is in running status, electromotor is pumped from service tank,
Engine oil return returns to service tank, and the state of electric oil pump is saved, when the low liquid level sensor of service tank is to intelligence control
When molding block sends low oil level signal, intelligent control module drives module to be energized to electric oil pump by oil pump, electric oil pump work
Making, supply fuel oil to service tank, the fuel bulk of supply is detected by liquid oil quantity sensor, and the result of measurement is stored in intelligence
In energy control module, when pasta arrives high level, high level sends signal, intelligent control module to intelligent control module
Making electric oil pump power-off, electric oil pump quits work, and the first check valve plays and prevents fuel flow returns, prevents fluid flow from repeatedly counting
The effect of amount.Service tank is used for solving oil return and measures more difficult problem, and will enter, oil return considers as an entirety.
During measuring, odometer sensor transmits mileage signal to intelligent control module, and clock module is when intelligent control module sends
Between signal, go round and begin again, at each minimum liquid level with between high level, the fuel consumption in can measuring during this period of time, hundred
Kilometric fuel consumption per, fuel consumption per hour, when engine stop runs, fuel oil when can measure its last operation consumes total
Amount.
This device is used on stationary engine, and such as diesel generating set, during diesel unit, principle ibid, is
There is no mileage signal and calculate the function of mileage.
Compared with prior art, the useful effect that inventive engine fuel consumption measurement apparatus and measuring method are had
Fruit is: arranges service tank, minimum liquid level and high level and detects sensor and control device, convenient by dress, and low cost is passed through
Control device, it is possible to accurately measure engine oil consumption.Original system is changed less.Control method is advanced, intelligence degree is high,
The measurement real-time of fuel consumption is good.Effectively solve engine oil return pulsation and containing alveolate problem.
Accompanying drawing explanation
Fig. 1 is engine fuel consumption quantity measurement apparatus structural representation.
Fig. 2 is schematic block circuit diagram.
Fig. 3 is engine fuel consumption quantity measurement apparatus program flow diagram.
Fig. 4 is circuit theory diagrams.
In Fig. 1: 1, electric oil pump 2, oil pipe 3, flow transducer the 4, first check valve 5, engine oil inlet pipe
6, electromotor flowline 7, passage 8, high level sensor 9, low liquid level sensor 10, electromotor 11, auxiliary
Fuel tank the 12, second check valve 13, electromotor large tank.
In Fig. 2-3: Input1-traffic pulse Batu-cell voltage Input2-oil level height signal
Input3-oil level low signal Input4-vehicle speed pulse.
In Fig. 4: U1 microprocessor U3 electrification reset chip U2 storage chip U3 electrification reset chip U4 clock
Chip U5-U6 shaping chip U7-U8 operational amplifier OP1-OP4 optocoupler X1-X3 crystal oscillator BT1 battery
TVS1, TVS2 transient voltage suppressor Q1 audion Q2 switching tube D1-D2 diode R1-R7 resistance C1-
C7 electric capacity VCC power supply.
Detailed description of the invention
Fig. 1 ~ 4 are highly preferred embodiment of the present invention, and 1 ~ 4 the present invention will be further described below in conjunction with the accompanying drawings.Electromotor
Fuel consumption measurement apparatus is used for automobile engine.
As shown in Figure 1: by electric oil pump 1, oil pipe 2, flow transducer the 3, first check valve 4, engine oil inlet pipe 5, send out
Motivation flowline 6, passage 7, high level sensor 8, low liquid level sensor 9, electromotor 10, service tank 11 and check valve 12
Composition.Fuel oil arrives service tank 11 through electric oil pump the 1, second check valve 12, oil pipe 2, flow transducer the 3, first check valve 4,
Engine oil inlet is through engine oil inlet pipe 5 from service tank 11, and engine oil return is to return to auxiliary oil through electromotor flowline 6
Case 11.
As shown in Figure 2: controller module includes battery voltage sensing module, Bus-Speed Monitoring module, flow detection module, oil
Pump drives module, intelligent control module to be connected with vehicle speed sensor with clock module, Bus-Speed Monitoring module, battery voltage detection mould
Block is connected with battery two ends, and flow detection module is connected with liquid flow sensor, and oil pump drives module to be connected with oil pump, speed
Detection module, battery voltage sensing module, flow detection module, oil pump drive module, clock module all with intelligent control module
It is connected.
As shown in Figure 3:
Microprocessor U1 is μ PD78F0881A；Storage chip U2 is AT24C512, and clock chip U4 is DS1302；Computing
Amplifier U7 and U8 is LM358；Shaping chip U5 and U6 is Schmidt trigger CD4093；Audion Q1 is 8550 switching tubes
Q2 is 8050；TVS1-TVS2 is transient voltage suppressor.
Intelligent control module includes that microprocessor U1 and peripheral circuit, microprocessor U1 are single-chip microcomputer, microprocessor U1's
7,8 feet two ends with crystal oscillator X1 respectively are connected, and by electric capacity C4, C5 ground connection, and the 9 of microprocessor U1,11 feet are respectively by electricity
Hold C6, C7 ground connection, the 10 of microprocessor U1,33 feet ground connection respectively；
3 feet of microprocessor U1 are reset pin, then start reset signal after receiving high level signal a period of time；
7 feet of microprocessor U1 and 8 feet receive the waveshape signal of crystal oscillator X1；
12 feet of microprocessor U1 and 13 foot output low level or high level signals；
18 feet of microprocessor U1 are interrupt signal；
The 20 foot I of microprocessor U12C communication protocol communication data；
28 foot output low level or the high level signals of microprocessor U1；
35 feet of microprocessor U1 and 36 feet receive low level or high level signal；
38 feet of microprocessor U1 and 37 feet send data and clock signal to 5 feet of storage chip U2 and 6 human hair combing wastes respectively；
40 feet of microprocessor U1 send clock signal to 7 human hair combing wastes of clock chip U4, when 41 feet of microprocessor U1 receive
High level that 6 human hair combing wastes of clock chip U4 send and low level alternating signal, if after noting abnormalities, 5 feet of clock chip U4 are to micro-place
42 human hair combing wastes of reason device U1 send high level signal, make microprocessor U1 reset；
Electrification reset chip U3 constitutes electrification reset unit, and 3,8 feet of electrification reset chip U3 meet power supply VCC, and 4 feet connect
Ground, 7 feet are connected with 3 feet of microprocessor U1；
Clock chip U4 and peripheral circuit makeup time signal element；
The 2 of clock chip U4,3 feet connect with crystal oscillator X3 two ends and pass through electric capacity C2, C3 ground connection, 1 foot of clock chip U4
Connecting with power supply VCC and pass through electric capacity C1 ground connection, 8 feet of clock chip U4 connect with battery BT1 positive pole, the negative pole of battery BT1
Connect with ground, the 5 of clock chip U4,6,7 feet are connected with 42,41,40 feet of microprocessor U1；
Storage chip U2 constitutes memory element；The 1 of storage chip U2,2,3,7,4 foot ground connection, 8 feet of storage chip U2 connect
Power supply VCC, the 5 of storage chip U2,6 feet connect the 38 of microprocessor U1,37 feet；
Shaping chip U5, optocoupler OP1 form GES detector unit, and optocoupler OP1 input is believed with vehicle speed pulse respectively
Number and power supply VCC connect, outfan connects with 1 foot and the power supply VCC of shaping chip U5 respectively, 7,14,2 points of shaping chip U5
Not with power supply VCC, and 36 feet of microprocessor U1 connect；
Shaping chip U6 and optocoupler OP2 constitutes flow signal detector unit；Optocoupler OP2 input respectively with flow signal and
Power supply VCC connects, and the outfan of optocoupler OP2 connects with 1 foot and the power supply VCC of shaping chip U6 respectively, shaping chip U6 7,
14,2 respectively with power supply VCC, and 35 feet of microprocessor U1 connect；
Optocoupler OP4 and high level sensor signal form high oil level signal detector unit；Optocoupler OP4 input respectively with height
Liquid level sensor signal and power supply VCC connect, and outfan 12 feet with power supply VCC and microprocessor U1 respectively connect；
Optocoupler OP5 and low liquid level sensor signal composition low oil level detecting signal unit, optocoupler OP5 input is respectively with low
Liquid level sensor signal and power supply VCC connect, and outfan 13 feet with power supply VCC and microprocessor U1 respectively connect；
Operational amplifier U7 and battery voltage sensing module signal composition battery voltage signal detector unit；
The positive input terminal of operational amplifier U7 is connected with battery voltage sensing module signal by resistance R4, and passes through resistance
R5 ground connection, the negative input end of operational amplifier U7 is connected with outfan, and power end is connected with power supply VCC, and ground end is connected to the ground, and
It is connected with outfan by transient voltage suppressor TVS1, the outfan of operational amplifier U7 and 20 feet of microprocessor U1
Connect；
Operational amplifier U8 and 5V supply voltage signal composition low voltage test unit；
The positive input terminal of operational amplifier U8 is connected by resistance R6 and 5V supply voltage signal, and is connect by resistance R7
Ground, the negative input end of operational amplifier U8 is connected with outfan, and power end is connected with power supply VCC, and ground end is connected to the ground and passes through
Transient voltage suppressor TVS2 is connected with outfan, the 18 foot phases of the outfan of operational amplifier U8 and microprocessor U1
Connect.
As shown in Figure 4:
A) system initialization self-inspection, it is judged that whether electromotor runs；
If b) electromotor does not runs, store this cycle time, distance travelled, continue back to electromotor and judge,
If electromotor runs, then enter whether power down judges；
C) if it is, store this cycle oil pump state when having run time, distance travelled and power down, if it is not, then read
Take oil pump power-down state and remove；
D) judge electric pump state, if electric pump state is for opening, then open oil pump, detected whether high oil level signal；
If e) electric pump state is for closing, then detects whether low oil level signal, if the judgment is Yes, then opened oil pump, and
Continue back to step d), if NO, then keep oil pump state constant；
F) judge whether it is high oil level signal testing result, if it is, close oil pump, enter and calculate operation time, OK
Sail mileage and fuel consumption；
G) average fuel consumption (L/100Km, L/H) is calculated；
H) display oil consumption, then returnes to a) enter next one circulation.
Work process is as follows: when electromotor 10 is in running status, fuel oil through electric oil pump the 1, second check valve 12,
Liquid flow sensor 3 is to service tank 11, and engine oil inlet pipe 5 extracts fuel oil, electromotor flowline 6 times from service tank 11
Oil is to service tank 11, and when oil level arrives high level sensor 8, electric oil pump 1 stops pump oil, passes when oil level arrives low liquid level
During sensor 9, electric oil pump 1 starts pump oil.Time and mileage signal are recorded all the time.Every time before electric oil pump 1 Primary pumps oil with
Next time between pump oil, the measured value of liquid flow sensor 3, it is simply that right in the time that the mileage run over during this period consumes
The fuel oil consumption answered, fuel consumption is shown, is stored.
If the volume in service tank 11 between high level sensor 8 and low liquid level sensor 9 is certain, then can remove
Liquid flow sensor 3, the fuel consumption of electromotor 10 remains able to measure, i.e. consumption is the oil pumping time of electric oil pump 1
Number is multiplied by the volume in service tank 11 between high level sensor 8 and low liquid level sensor 9.
When several stationary engines share a service tank 11, use a liquid flow sensor 3, then several
The fuel oil consumption of electromotor 10 still can be calculated, and the result calculated is several engine fuel consumption quantity sums.
The above, be only presently preferred embodiments of the present invention, is not the restriction that the present invention makees other form, appoints
What those skilled in the art changed possibly also with the technology contents of the disclosure above or be modified as equivalent variations etc.
Effect embodiment.But every without departing from technical solution of the present invention content, the technical spirit of the foundation present invention is to above example institute
Any simple modification, equivalent variations and the remodeling made, still falls within the protection domain of technical solution of the present invention.
Claims (3)
1. engine fuel consumption quantity measurement apparatus, including electric oil pump, engine oil inlet pipe and electromotor flowline, its feature
Being: arrange service tank (11), engine oil inlet pipe (5) is connected, separately with electromotor (10) with electromotor flowline (6) one end
One end is inserted in service tank (11), arranges high level sensor (8) on service tank (11) top, under service tank (11)
Portion arranges low liquid level sensor (9), and service tank (11) is connected with electromotor large tank (13), on oil pipe (2) by oil pipe (2)
Installing the first check valve (4), flow transducer (3) and the second check valve (12), it is big that the second check valve (12) is arranged on electromotor
In fuel tank (13) and it is connected with electric oil pump (1), controller and flow transducer (3), the first check valve (4), high level sensing
Device (8), low liquid level sensor (9) are connected with the second check valve (12)；
Described controller include battery voltage sensing module, Bus-Speed Monitoring module, flow detection module, oil pump drive module,
Intelligent control module is connected with vehicle speed sensor with clock module, Bus-Speed Monitoring module, battery voltage sensing module and battery two
End is connected, and flow detection module is connected with liquid flow sensor, and oil pump drives module to be connected with oil pump, Bus-Speed Monitoring module,
Battery voltage sensing module, flow detection module, oil pump drive module, clock module to be all connected with intelligent control module；
Described flow detection module is to be constituted flow signal detector unit by shaping chip U6 and optocoupler OP2；Optocoupler OP2 inputs
End connects with flow signal and power supply VCC respectively, the outfan of optocoupler OP2 respectively with 1 foot and the power supply VCC phase of shaping chip U6
Connect, 7,14, the 2 of shaping chip U6 respectively with power supply VCC, and 35 feet of microprocessor U1 connect；
Optocoupler OP4 and high level sensor signal form high oil level signal detector unit；Optocoupler OP4 input respectively with high level
Sensor signal and power supply VCC connect, and outfan 12 feet with power supply VCC and microprocessor U1 respectively connect；
Optocoupler OP5 and low liquid level sensor signal composition low oil level detecting signal unit, optocoupler OP5 input respectively with low liquid level
Sensor signal and power supply VCC connect, and outfan 13 feet with power supply VCC and microprocessor U1 respectively connect, wherein: shaping
Chip U6 is Schmidt trigger CD4093, and microprocessor U1 is μ PD78F0881A.
Engine fuel consumption quantity measurement apparatus the most according to claim 1, it is characterised in that: described Based Intelligent Control mould
Block includes that microprocessor U1 and peripheral circuit, microprocessor U1 are single-chip microcomputer, the 7 of microprocessor U1,8 feet are respectively with crystal oscillator X1's
Two ends are connected, and by electric capacity C4, C5 ground connection, and the 9 of microprocessor U1,11 feet are respectively by electric capacity C6, C7 ground connection, microprocessor
The 10 of U1,33 feet ground connection respectively；
3 feet of microprocessor U1 are reset pin, then start reset signal after receiving high level signal a period of time；
7 feet of microprocessor U1 and 8 feet receive the waveshape signal of crystal oscillator X1；
12 feet of microprocessor U1 and 13 foot output low level or high level signals；
18 feet of microprocessor U1 are interrupt signal；
The 20 foot I of microprocessor U12C communication protocol communication data；
28 foot output low level or the high level signals of microprocessor U1；
35 feet of microprocessor U1 and 36 feet receive low level or high level signal；
38 feet of microprocessor U1 and 37 feet send data and clock signal to 5 feet of storage chip U2 and 6 human hair combing wastes respectively；
40 feet of microprocessor U1 send clock signal to 7 human hair combing wastes of clock chip U4, and 41 feet of microprocessor U1 receive clock core
High level that 6 human hair combing wastes of sheet U4 send and low level alternating signal, if after noting abnormalities, 5 feet of clock chip U4 are to microprocessor
42 human hair combing wastes of U1 send high level signal, make microprocessor U1 reset；
Electrification reset chip U3 constitutes electrification reset unit, and 3,8 feet of electrification reset chip U3 connect power supply VCC, 4 foot ground connection, 7 feet
It is connected with 3 feet of microprocessor U1；
Clock chip U4 and peripheral circuit makeup time signal element；
The 2 of clock chip U4,3 feet connect with crystal oscillator X3 two ends and pass through electric capacity C2, C3 ground connection, 1 foot of clock chip U4 and electricity
Source VCC connects and passes through electric capacity C1 ground connection, and 8 feet of clock chip U4 connect with battery BT1 positive pole, the negative pole of battery BT1 and ground
Connect, the 5 of clock chip U4,6,7 feet are connected with 42,41,40 feet of microprocessor U1；
Storage chip U2 constitutes memory element；The 1 of storage chip U2,2,3,7,4 foot ground connection, 8 feet of storage chip U2 connect power supply
VCC, the 5 of storage chip U2,6 feet connect the 38 of microprocessor U1,37 feet；
Shaping chip U5, optocoupler OP1 form GES detector unit, optocoupler OP1 input respectively with vehicle speed pulse and
Power supply VCC connects, and outfan connects with 1 foot and the power supply VCC of shaping chip U5 respectively, 7,14, the 2 of shaping chip U5 respectively with
Power supply VCC, and 36 feet of microprocessor U1 connect；
Operational amplifier U7 and battery voltage sensing module signal composition battery voltage signal detector unit；
The positive input terminal of operational amplifier U7 is connected with battery voltage sensing module signal by resistance R4, and is connect by resistance R5
Ground, the negative input end of operational amplifier U7 is connected with outfan, and power end is connected with power supply VCC, and ground end is connected to the ground, and passes through
Transient voltage suppressor TVS1 is connected with outfan, the 20 foot phases of the outfan of operational amplifier U7 and microprocessor U1
Connect；
Operational amplifier U8 and 5V supply voltage signal composition low voltage test unit；
The positive input terminal of operational amplifier U8 is connected by resistance R6 and 5V supply voltage signal, and by resistance R7 ground connection, fortune
The negative input end calculating amplifier U8 is connected with outfan, and power end is connected with power supply VCC, and ground end is connected to the ground and passes through transient electrical
Constraining diode TVS2 processed to be connected with outfan, the outfan of operational amplifier U8 connects, wherein with 18 feet of microprocessor U1:
Microprocessor U1 is μ PD78F0881A, storage chip U2 is AT24C512, electrification reset chip U3 is X5045, clock chip U4
For DS1302, shaping chip U5, U6 be Schmidt trigger CD4093, operational amplifier U7, U8 be LM358.
3. the measuring method of the engine fuel consumption quantity measurement apparatus that a kind utilizes described in claim 1, it is characterised in that:
A) system initialization self-inspection, it is judged that whether electromotor runs；
If b) electromotor does not runs, storing this cycle has run time, distance travelled, continues back to electromotor and sentences
Disconnected, if electromotor runs, then enter whether power down judges；
C) if it is, store this cycle oil pump state when having run time, distance travelled and power down, if it is not, then read oil
Pump power-down state is also removed；
D) judge electric pump state, if electric pump state is for opening, then open oil pump, detected whether high oil level signal；
If e) electric pump state is for closing, then detects whether low oil level signal, if the judgment is Yes, then opened oil pump, and continued
Return to step d), if NO, then keep oil pump state constant；
F) judge whether it is high oil level signal testing result, if it is, close oil pump, enter in the operation time that calculates, traveling
Journey and fuel consumption；
G) average fuel consumption (L/100Km, L/H) is calculated；
H) display oil consumption, then returnes to a) enter next one circulation.
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| US10596652B2 (en) * | 2014-11-13 | 2020-03-24 | Illinois Tool Works Inc. | Systems and methods for fuel level monitoring in an engine-driven generator |
| CN105004391A (en) * | 2015-05-25 | 2015-10-28 | 华南农业大学 | Engine oil consumption measuring device and method |
| CN112033496B (en) * | 2020-09-10 | 2021-03-26 | 上海星融汽车科技有限公司 | Method for judging fuel quantity abnormal change based on fuel tank liquid level monitoring |
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| CN203719716U (en) * | 2013-12-30 | 2014-07-16 | 山东申普交通科技有限公司 | Measuring device of fuel oil consumption of engine |
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| US3908450A (en) * | 1974-03-15 | 1975-09-30 | List Hans | Device for the determination of liquid consumption |
| CN2353909Y (en) * | 1998-05-05 | 1999-12-15 | 富国成 | Calibration type measuring instrument for oil consumption of automobile |
| CN101196418A (en) * | 2006-12-07 | 2008-06-11 | 广东新蓝德信息产业有限公司 | System and method for detecting practical oil consumption and mileage of motor vehicle |
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