CN104389689A - Automobile engine fuel oil supply system - Google Patents
Automobile engine fuel oil supply system Download PDFInfo
- Publication number
- CN104389689A CN104389689A CN201410508807.6A CN201410508807A CN104389689A CN 104389689 A CN104389689 A CN 104389689A CN 201410508807 A CN201410508807 A CN 201410508807A CN 104389689 A CN104389689 A CN 104389689A
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- supply system
- oil
- microprocessor
- transfer pump
- fuel oil
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- Control Of Positive-Displacement Pumps (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses an automobile engine fuel oil supply system, and belongs to the technical field of automobiles. The automobile engine fuel oil supply system comprises a microprocessor, an oil pressure sensor, a pulse generating device and an oil conveying pump, wherein the oil pressure sensor is arranged on an oil outlet pipeline arranged between the oil conveying pump and the microprocessor, one end of the pulse generating device is connected with the microprocessor, the other end of the pulse generating device is connected with the oil conveying pump, the microprocessor controls the duty ratio of the pulse generating device according to the pressure difference between the preset target fuel oil pressure value and the fuel oil pressure value in the oil outlet pipeline of the oil conveying pump collected by the oil pressure sensor, and the rotating speed of the oil conveying pump is regulated, so that the fuel oil quantity pumped out by the oil conveying pump can be regulated. The automobile engine fuel oil supply system has the advantages that the fuel oil pumping-out quantity can be controlled according to actual work conditions, and the energy sources can be effectively saved.
Description
Technical field
The present invention relates to automobile technical field, particularly a kind of motor car engine fuel oil supply system.
Background technique
Motor car engine in the course of the work, need to inject fuel in intake manifold and fully mix with the air entered, enter the acting of engine cylinder-body combustion after atomization, this just requires that fuel oil supply system wants the fuel oil that can provide with certain pressure, fuel oil can be sprayed.
In prior art, in order to meet the usage requirement of all operating modes of motor, the amount of fuel that oil transfer pump pumps is the steady state value preset according to constant engine operating mode, the demand of operating mode is commonly used much larger than motor, this just causes under various working, the amount of fuel that oil transfer pump pumps is greater than actual demand, causes energy dissipation, and the fuel oil had more also needs again to be flowed back in fuel tank by pressure regulator valve draining; In addition, oil transfer pump remains to run up and causes service life reduction, brings noise pollution simultaneously.
Summary of the invention
Embodiments provide a kind of motor car engine fuel oil supply system, the amount of fuel that can pump according to the actual conditions control oil transfer pump of motor, effective energy saving.
The technological scheme that the embodiment of the present invention provides is as follows:
A kind of motor car engine fuel oil supply system, comprising: microprocessor, oil pressure sensor, pulse generating unit and oil transfer pump; Described oil pressure sensor is arranged in the outlet line between described oil transfer pump and described microprocessor; One end of described pulse generating unit is connected with described microprocessor, and the other end is connected with described oil transfer pump; Fuel pressure value in the outlet line of the described oil transfer pump that described microprocessor gathers according to described oil pressure sensor and the pressure difference between the Targeted fuel pressure value preset control the dutycycle of described pulse generating unit, the rotating speed of described oil transfer pump is adjusted, thus the amount of fuel that described oil transfer pump pumps is adjusted.
Preferably, also comprise: the DC electrical source be connected with described pulse generating unit.
Preferably, also comprise: one end is connected with described DC electrical source, the voltage transformation module that the other end is connected with described microprocessor.
Preferably, also comprise: be arranged on the protective circuit between described DC electrical source and described oil transfer pump, be connected by communication line between described protective circuit with described microprocessor.
Preferably, also comprise: be arranged on the eliminator between described pulse generating unit and described oil transfer pump.
Preferably, also comprise: be arranged on the signal conversion module between described microprocessor and described oil pressure sensor.
Preferably, also comprise: the monitoring module be connected with described voltage transformation module, microprocessor and signal conversion module respectively.
Preferably, also comprise: the engine electronic control unit be connected with the output terminal of described monitoring module respectively and instrument.
Preferably, described voltage transformation module is DC voltage regulator circuit.
Preferably, the voltage of described DC electrical source is 12 ~ 13.5V.
The motor car engine fuel oil supply system that the embodiment of the present invention provides, the fuel pressure value in the outlet line of oil transfer pump is gathered by oil pressure sensor, and this fuel pressure value and the Targeted fuel pressure value that presets are compared calculate pressure difference, microprocessor is according to the dutycycle of this pressure difference adjustment pulse generating unit, thus the rotating speed of oil transfer pump is adjusted, and then the amount of fuel that adjustment oil transfer pump pumps, thus can control effectively to the amount of fuel that oil transfer pump pumps according to the actual conditions of motor, not only energy saving, reduce noise, and the working life of oil transfer pump can be improved.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the present invention, for those of ordinary skill in the art, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the overall schematic of the fuel oil supply system of a kind of motor car engine that the embodiment of the present invention provides.
Reference character:
1-microprocessor; 2-oil pressure sensor; 3-pulse generating unit; 4-oil transfer pump;
5-DC electrical source; 6-voltage transformation module; 7-protective circuit; 8-eliminator;
9-signal conversion module; 10-monitoring module; 11-engine electronic control unit; 12-instrument.
Embodiment
In order to the scheme making those skilled in the art person understand the embodiment of the present invention better, below in conjunction with drawings and embodiments, the embodiment of the present invention is described in further detail.
As shown in Figure 1, motor car engine fuel oil supply system can comprise: microprocessor 1, oil pressure sensor 2, pulse generating unit 3 and oil transfer pump 4; Wherein, oil pressure sensor 2 is arranged in the outlet line between oil transfer pump 4 and microprocessor 1; One end of pulse generating unit 3 is connected with microprocessor 1, and the other end is connected with oil transfer pump 4; The dutycycle of the fuel pressure value in the outlet line of the oil transfer pump 4 that microprocessor 1 gathers according to oil pressure sensor 2 and the pressure difference control impuls generating means 3 between the Targeted fuel pressure value preset, to adjust the rotating speed of oil transfer pump 4, thus the amount of fuel that oil transfer pump 4 pumps is adjusted.This motor car engine fuel oil supply system, can control the amount of fuel that oil transfer pump pumps according to actual conditions, effective energy saving, reduces noise, improves the working life of oil transfer pump.
Motor will carry out normal oil spout, the fuel oil needing oil transfer pump to pump has certain pressure, and under different operating mode, fuel pressure required for engine work is constant, rotating speed corresponding to Under Different Work Condition of Engine is different, therefore, can think that the fuel pressure value required in different rotating speeds situation of motor is constant, also namely, required under engine speed is 3000rpm situation fuel pressure value and rotating speed are fuel pressure value required in 5000rpm situation is identical.Motor for special parameter can precompute the fuel pressure value (Targeted fuel pressure value) required for normal oil spout, such as, be set to 350kP.Fuel injection quantity due to motor is that ECU is set by the aperture of the closure calculating oil nozzle, in order to adapt to the difference of fuel demand amount under Under Different Work Condition of Engine, need to adjust throttle opening according to the change of operating mode, and in the process of throttle opening adjustment, fuel pressure value will be caused to change, therefore, need to compensate fuel pressure value, make it keep Targeted fuel pressure value, thus meet the demand of the normal oil spout of motor.
Particularly, the fuel pressure value in the outlet line of oil transfer pump 4 can be gathered by oil pressure sensor 2, and this fuel pressure value and the Targeted fuel pressure value preset are compared, pressure difference is between the two calculated by microprocessor 1, and adjust the dutycycle of pulse generating unit 3 according to this pressure difference, thus the rotating speed of oil transfer pump 4 is adjusted.Because the dutycycle of pulse generating unit 3 is different, the fuel pressure value causing exporting is changed, thus fuel pressure value is compensated, make it close to Targeted fuel pressure value.The amount of fuel pumped due to oil transfer pump 4 and oil transportation pump delivery, rotating speed are relevant with plot ratio, therefore, by the rotating speed controlling oil transfer pump 4, pumped amount of fuel can be controlled, thus according to the amount of fuel that the actual conditions control oil transfer pump 4 of motor pumps, actual fuel feeding demand can either be met, energy saving again.
Above-mentioned motor car engine fuel oil supply system can also comprise: the DC electrical source 5 be connected with pulse generating unit 3, and wherein, the voltage of DC electrical source 5 preferably adopts 12 ~ 13.5V.
Control voltage due to microprocessor 1 is generally 5V voltage, the magnitude of voltage that directly will provide lower than DC electrical source 5, therefore, can export to microprocessor 1 by arranging voltage transformation module 6 by after the Voltage Cortrol of DC electrical source 5.Particularly, one end of voltage transformation module 6 can be connected with DC electrical source 5, the other end is connected with microprocessor 1, wherein, voltage transformation module 6 preferably adopts DC voltage regulator circuit, thus 12 ~ 13.5V voltage transitions DC electrical source 5 provided is, after 5V voltage, be supplied to microprocessor 1.
Further, above-mentioned motor car engine fuel oil supply system can also comprise: be arranged on the protective circuit 7 between DC electrical source 5 and oil transfer pump 4, wherein, is connected between protective circuit 7 with microprocessor 1 by communication line.Particularly; when oil pressure sensor 6 detects that fuel pressure in outlet line is lower than setting value; microprocessor 1 can send protective signal to protective circuit 7; thus trigger protection circuit 7 works; the function of break impulse generating means 3 and eliminator 8; directly DC electrical source 5 is acted on oil transfer pump 4, thus the normal work of oil transfer pump 4 can be ensured.
The pulse signal produced in order to paired pulses generating means 3 carries out filtering, can also arrange eliminator 8 between pulse generating unit 3 and oil transfer pump 4, can by distorted waveform filtering, thus prevent oil transfer pump 4 from producing misoperation by filtering.
Further, can also between oil pressure sensor 2 and microprocessor 1 signalization modular converter 9, wherein, the signal that signal conversion module 9 can adopt decoder etc. the signal that oil pressure sensor 2 gathers can be converted to microprocessor 1 can to identify, so that carry out respective handling.
Above-mentioned motor car engine fuel oil supply system can also comprise: the monitoring module 10 be connected with voltage transformation module 6, microprocessor 1 and signal conversion module 9 respectively, thus can monitor signal in real time.In addition, can also comprise: the engine electronic control unit 11 be connected with the output terminal of monitoring module 10 respectively and instrument 12, thus the data information can monitored according to monitoring module 10, control associated components and carry out logical operation, judge, make response etc.
The motor car engine fuel oil supply system that the embodiment of the present invention provides, the fuel pressure value in the outlet line of oil transfer pump is gathered by oil pressure sensor, and this fuel pressure value and the Targeted fuel pressure value that presets are compared calculate pressure difference, microprocessor is according to the dutycycle of this pressure difference adjustment pulse generating unit, thus the rotating speed of oil transfer pump is adjusted, and then the amount of fuel that adjustment oil transfer pump pumps, thus can control effectively to the amount of fuel that oil transfer pump pumps according to the actual conditions of motor, not only energy saving, reduce noise, and the working life of oil transfer pump can be improved.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a motor car engine fuel oil supply system, is characterized in that, comprising: microprocessor, oil pressure sensor, pulse generating unit and oil transfer pump; Described oil pressure sensor is arranged in the outlet line between described oil transfer pump and described microprocessor; One end of described pulse generating unit is connected with described microprocessor, and the other end is connected with described oil transfer pump; Fuel pressure value in the outlet line of the described oil transfer pump that described microprocessor gathers according to described oil pressure sensor and the pressure difference between the Targeted fuel pressure value preset control the dutycycle of described pulse generating unit, the rotating speed of described oil transfer pump is adjusted, thus the amount of fuel that described oil transfer pump pumps is adjusted.
2. motor car engine fuel oil supply system according to claim 1, is characterized in that, also comprise: the DC electrical source be connected with described pulse generating unit.
3. motor car engine fuel oil supply system according to claim 2, is characterized in that, also comprise: one end is connected with described DC electrical source, the voltage transformation module that the other end is connected with described microprocessor.
4. motor car engine fuel oil supply system according to claim 3, be is characterized in that, also comprise: be arranged on the protective circuit between described DC electrical source and described oil transfer pump, be connected between described protective circuit with described microprocessor by communication line.
5. motor car engine fuel oil supply system according to claim 4, is characterized in that, also comprise: be arranged on the eliminator between described pulse generating unit and described oil transfer pump.
6. motor car engine fuel oil supply system according to claim 5, is characterized in that, also comprise: be arranged on the signal conversion module between described microprocessor and described oil pressure sensor.
7. motor car engine fuel oil supply system according to claim 6, is characterized in that, also comprise: the monitoring module be connected with described voltage transformation module, microprocessor and signal conversion module respectively.
8. motor car engine fuel oil supply system according to claim 7, is characterized in that, also comprise: the engine electronic control unit be connected with the output terminal of described monitoring module respectively and instrument.
9. the motor car engine fuel oil supply system according to any one of claim 3 to 8, is characterized in that: described voltage transformation module is DC voltage regulator circuit.
10. motor car engine fuel oil supply system according to claim 9, is characterized in that: the voltage of described DC electrical source is 12 ~ 13.5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410508807.6A CN104389689A (en) | 2014-09-28 | 2014-09-28 | Automobile engine fuel oil supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410508807.6A CN104389689A (en) | 2014-09-28 | 2014-09-28 | Automobile engine fuel oil supply system |
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| CN104389689A true CN104389689A (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410508807.6A Pending CN104389689A (en) | 2014-09-28 | 2014-09-28 | Automobile engine fuel oil supply system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121990A (en) * | 2016-08-31 | 2016-11-16 | 温州市沃力机车部件有限公司 | A kind of FPC Fuel Pump Controller |
| CN111005826A (en) * | 2019-12-30 | 2020-04-14 | 三一重机有限公司 | Electronic fuel pump control device, control method thereof and excavator |
| CN113464303A (en) * | 2021-08-17 | 2021-10-01 | 安徽江淮汽车集团股份有限公司 | Engine fuel pressure control method |
| CN113790107A (en) * | 2021-08-19 | 2021-12-14 | 浙江吉利控股集团有限公司 | Pre-pressure building method and system for vehicle oil supply system and vehicle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0727029A (en) * | 1993-07-08 | 1995-01-27 | Mitsubishi Electric Corp | Fuel supply device of engine |
| US5483940A (en) * | 1992-11-09 | 1996-01-16 | Unisia Jecs Corporation | Apparatus and a method for controlling fuel supply to engine |
| CN1140234A (en) * | 1995-06-28 | 1997-01-15 | 日本电装株式会社 | Fuel supply system for internal combustion engine and method for adjusting same |
| US20010009149A1 (en) * | 2000-01-25 | 2001-07-26 | Yasuo Hirata | Fuel supply amount controller for internal combustion engine |
| CN101063425A (en) * | 2006-04-28 | 2007-10-31 | 株式会社日立制作所 | Fuel supplu equipment for motor and control method thereof |
| JP2007303372A (en) * | 2006-05-11 | 2007-11-22 | Toyota Motor Corp | Fuel supply system of internal combustion engine |
| CN201771655U (en) * | 2010-08-20 | 2011-03-23 | 台州汇正汽车电机有限公司 | Electronic brushless fuel pump for automobile |
-
2014
- 2014-09-28 CN CN201410508807.6A patent/CN104389689A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5483940A (en) * | 1992-11-09 | 1996-01-16 | Unisia Jecs Corporation | Apparatus and a method for controlling fuel supply to engine |
| JPH0727029A (en) * | 1993-07-08 | 1995-01-27 | Mitsubishi Electric Corp | Fuel supply device of engine |
| CN1140234A (en) * | 1995-06-28 | 1997-01-15 | 日本电装株式会社 | Fuel supply system for internal combustion engine and method for adjusting same |
| US20010009149A1 (en) * | 2000-01-25 | 2001-07-26 | Yasuo Hirata | Fuel supply amount controller for internal combustion engine |
| CN101063425A (en) * | 2006-04-28 | 2007-10-31 | 株式会社日立制作所 | Fuel supplu equipment for motor and control method thereof |
| JP2007303372A (en) * | 2006-05-11 | 2007-11-22 | Toyota Motor Corp | Fuel supply system of internal combustion engine |
| CN201771655U (en) * | 2010-08-20 | 2011-03-23 | 台州汇正汽车电机有限公司 | Electronic brushless fuel pump for automobile |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121990A (en) * | 2016-08-31 | 2016-11-16 | 温州市沃力机车部件有限公司 | A kind of FPC Fuel Pump Controller |
| CN111005826A (en) * | 2019-12-30 | 2020-04-14 | 三一重机有限公司 | Electronic fuel pump control device, control method thereof and excavator |
| CN111005826B (en) * | 2019-12-30 | 2024-03-29 | 三一重机有限公司 | Electronic fuel pump control device, control method thereof and excavator |
| CN113464303A (en) * | 2021-08-17 | 2021-10-01 | 安徽江淮汽车集团股份有限公司 | Engine fuel pressure control method |
| CN113790107A (en) * | 2021-08-19 | 2021-12-14 | 浙江吉利控股集团有限公司 | Pre-pressure building method and system for vehicle oil supply system and vehicle |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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Application publication date: 20150304 |
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| RJ01 | Rejection of invention patent application after publication |