CN102787922A - Electronic control system for oil gas mixed fuel of engine - Google Patents
Electronic control system for oil gas mixed fuel of engine Download PDFInfo
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- CN102787922A CN102787922A CN2012103230364A CN201210323036A CN102787922A CN 102787922 A CN102787922 A CN 102787922A CN 2012103230364 A CN2012103230364 A CN 2012103230364A CN 201210323036 A CN201210323036 A CN 201210323036A CN 102787922 A CN102787922 A CN 102787922A
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- oil
- control system
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- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The invention discloses an electronic control system for oil gas mixed fuel of an engine, belongs to fuel control systems of engines, and provides an electronic control system for accurately controlling the matching ratio of fuel oil to natural gas. The electronic control system for the oil gas mixed fuel of the engine comprises the engine provided with a speed sensor, a fuel gas injection valve communicated with the engine, a fuel injector solenoid valve communicated with the engine, a common rail communicated with the fuel injector solenoid valve and provided with a pressure sensor and a first control unit electrically connected with the fuel injector solenoid valve and the common rail respectively. The pressure sensor (6), the speed sensor (4) and the fuel injector solenoid valve (5) are electrically connected with a second control unit (7) respectively, and the second control unit (7) is electrically connected with the fuel gas injection valve (1). The electronic control system utilizes two electronic control units (ECU) to perform cooperative control on the fuel oil and the fuel gas respectively, so that the fuel oil and the fuel gas can be ensured to be in an optimal matching ratio state according to the preset proportion.
Description
Technical field
The present invention relates to a kind of motor fuel control system, relate in particular to a kind of diesel oil and the dimethyl ether of natural gas proportions of ingredients or motor and automatical control system of natural gas proportions of ingredients of controlling motor.
Background technique:At present, it all is to be formed by the compression ignition engine transformation usually that oil, gas mix engine fuel, and its renovation technique route is on compression ignition engine, to increase a cover oil, gas dispensing control gear.Though this oil, gas mixing combustion engine to original structure change less, be easy to realize; But the proportioning control accuracy between oil, two kinds of fuel of gas is not high; Can not adapt to the requirement of various complex working conditions, so the power character of motor, fuel economy and exhaust emissions are difficult to the level that reaches higher.
In order to overcome the above-mentioned defective that exists in the conventional art, it is the electric-control motor system of fuel combination with diesel oil and natural gas that the patent of invention that notice of authorization number is called " engine system of the electrically controlled dual-fuel automobile of mechanical type diesel-oil vehicle repacking " for " CN1111645C ", name discloses a kind of; This system is to be setting value with the desired speed and the throttle position of motor under various operating modes; Convert the parameter of speed probe and throttle sensor collection into electrical signal and send control unit to; This control unit compares said parameter and setting value; Then throttle actuator and natural gas injection valve are regulated control, thereby realize improving the proportioning degree of regulation of diesel oil and natural gas.Though this system can solve problems such as power character, fuel economy and the exhaust emissions level of present diesel oil, natural gas duel fuel engine are not high preferably; Yet; When automobile under overload condition; Particularly motor uses a period of time and after producing mechanical wear, power curve and changing; Setting value under parameters such as the actual speed of motor under dual fuel mode, actual throttle position and the corresponding operating mode can produce deviation; Thereby cause throttle desired location under throttle physical location, the pairing fuel delivery of actual engine speed and the same terms, the pairing fuel delivery of motor set rotary speed to have greatly changed, cause supply proportioning, the fuel of diesel oil and natural gas always to consume control accuracy decline, do not reach the order of stable engine power, raising fuel economy, reduction exhaust emissions.
Summary of the invention:In order to overcome the defective that exists in the existing technology, the present invention aims to provide and a kind ofly can accurately control oil, gas proportioning, thereby reduces the engine oil gas fuel combination automatical control system of oil consumption.
To achieve these goals, the present invention adopts following technological scheme: it comprises the motor that is provided with speed probe, the fuel gas injection valve that is communicated with this motor, the fuel injector magnetic system that is communicated with this motor, first control unit that is communicated with this fuel injector magnetic system and is provided with the high-pressure common rail of pressure transducer, is electrically connected with said fuel injector magnetic system and said high-pressure common rail respectively; Pressure transducer, speed probe and fuel injector magnetic system are electrically connected with second control unit respectively, and this second control unit is electrically connected with fuel gas injection valve.
Compare with existing technology; The present invention is owing to adopted technique scheme; First control unit (ECU that former motor carries) control motor normally moves; At this moment second control unit calculates actual fuel delivery according to the pressure of the common rail of engine high pressure, the open frequency and the pulsewidth of fuel injector magnetic system; And according to the actual fuel delivery of calculating, according to the air demand of the rotating speed of motor and predetermined oil-gas ratin real-time regulated fuel gas injection valve, thereby can guarantee that fuel oil and natural gas are in best proportioning state all the time.
Description of drawings:
Fig. 1 is a principle schematic of the present invention.
Among the figure: fuel gas injection valve 1 motor 2 first control units 3 speed probes 4 fuel injector magnetic systems 5 pressure transducers 6 second control units 7 high-pressure common rails 8
Embodiment:Below in conjunction with accompanying drawing and concrete embodiment the present invention is described further:
As shown in Figure 1: high-pressure common rail 8 is communicated with motor 2 through fuel injector magnetic system 5, and the fuel gas injection valve of being controlled by second control unit 71 is communicated with motor 2; Be located at the pressure transducer 6 on the high-pressure common rail 8, speed probe 4 and the fuel injector magnetic system 5 that is located on the motor 2 is electrically connected with second control unit 7 respectively, first control unit 3 is electrically connected with fuel injector magnetic system 5, high-pressure common rail 8 respectively.
Claims (1)
1. engine oil gas fuel combination automatical control system comprises the motor that is provided with speed probe, the fuel gas injection valve that is communicated with this motor, the fuel injector magnetic system that is communicated with this motor, first control unit that is communicated with this fuel injector magnetic system and is provided with the high-pressure common rail of pressure transducer, is electrically connected with said fuel injector magnetic system and said high-pressure common rail respectively; It is characterized in that: pressure transducer (6), speed probe (4) and fuel injector magnetic system (5) are electrically connected with second control unit (7) respectively, and this second control unit is electrically connected with fuel gas injection valve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103230364A CN102787922A (en) | 2012-09-04 | 2012-09-04 | Electronic control system for oil gas mixed fuel of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103230364A CN102787922A (en) | 2012-09-04 | 2012-09-04 | Electronic control system for oil gas mixed fuel of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102787922A true CN102787922A (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103230364A Pending CN102787922A (en) | 2012-09-04 | 2012-09-04 | Electronic control system for oil gas mixed fuel of engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN102787922A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1289003A (en) * | 2000-11-17 | 2001-03-28 | 清华大学 | Electrically controlled dual-fuel automobile engine system refitted from mechanical diesel engine |
| US20030187565A1 (en) * | 2002-03-20 | 2003-10-02 | Hoi-Ching Wong | Dual fuel engine having multiple dedicated controllers connected by a broadband communications link |
| CN102072036A (en) * | 2011-01-17 | 2011-05-25 | 吕国怀 | Method and device for controlling fuel-gas ratio of dual-fuel engine |
| CN201963413U (en) * | 2010-12-20 | 2011-09-07 | 浙江蓝邦控制***有限公司 | High-pressure common-rail engine electric control system for diesel and natural gas dual-fuel vehicle |
| CN102278215A (en) * | 2011-05-26 | 2011-12-14 | 周秀芬 | Electric-control double-fuel engine system |
| CN202832806U (en) * | 2012-09-04 | 2013-03-27 | 周继光 | Engine oil-gas combined fuel electronic control system |
-
2012
- 2012-09-04 CN CN2012103230364A patent/CN102787922A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1289003A (en) * | 2000-11-17 | 2001-03-28 | 清华大学 | Electrically controlled dual-fuel automobile engine system refitted from mechanical diesel engine |
| US20030187565A1 (en) * | 2002-03-20 | 2003-10-02 | Hoi-Ching Wong | Dual fuel engine having multiple dedicated controllers connected by a broadband communications link |
| CN201963413U (en) * | 2010-12-20 | 2011-09-07 | 浙江蓝邦控制***有限公司 | High-pressure common-rail engine electric control system for diesel and natural gas dual-fuel vehicle |
| CN102072036A (en) * | 2011-01-17 | 2011-05-25 | 吕国怀 | Method and device for controlling fuel-gas ratio of dual-fuel engine |
| CN102278215A (en) * | 2011-05-26 | 2011-12-14 | 周秀芬 | Electric-control double-fuel engine system |
| CN202832806U (en) * | 2012-09-04 | 2013-03-27 | 周继光 | Engine oil-gas combined fuel electronic control system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121121 |