CN104153894A - Fuel gas dual-fuel electrical control device with fuel gas leakage alarm function, and fuel gas leakage detection and alarming method - Google Patents
Fuel gas dual-fuel electrical control device with fuel gas leakage alarm function, and fuel gas leakage detection and alarming method Download PDFInfo
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- CN104153894A CN104153894A CN201410452857.7A CN201410452857A CN104153894A CN 104153894 A CN104153894 A CN 104153894A CN 201410452857 A CN201410452857 A CN 201410452857A CN 104153894 A CN104153894 A CN 104153894A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The invention discloses a fuel gas dual-fuel electrical control device with a fuel gas leakage alarm function. The fuel gas dual-fuel electrical control device comprises a fuel gas electrical control unit (ECU), a fuel gas leakage sensor, a solenoid valve, a fuel gas jet rail, a decompressor and a fuel gas state indication switch, wherein the fuel gas leakage sensor is arranged on a fuel gas supply pipeline; one end of the solenoid valve is externally connected with a gas storage tank, and the other end of the solenoid valve passes through the decompressor and is connected with the fuel gas jet rail; the fuel gas ECU is used for controlling the solenoid valve and the fuel gas leakage sensor to be switched on or off; the fuel gas leakage sensor is used for detecting the concentration of external combustible gas and sending detected information to the fuel gas ECU through an electrical signal; the fuel gas state indication switch is connected with the fuel gas ECU and controlled by the fuel gas ECU. A fuel gas leakage alarm device is integrated in a fuel gas control system; once the leakage of fuel gas is detected, the fuel gas control system can be used for performing emergency disposal in first time without manual intervention and automatically making a switch to a fuel oil mode, so that the active safety of a vehicle is improved.
Description
Technical field
The present invention relates to gasoline/natural gas double-fuel and mix supply control field, be specifically related to detection and emergency processing that gaseous fuel leaks, relate in particular to a kind of combustion gas double fuel electric controller with gas leakage warning function and gas leakage and detect and alarm method.
Background technique
Because rock gas is compared gasoline, there are the features such as price is low, environmental protection.So there is increasing vehicle to be repacked into gasoline/natural gas double-fuel, supply with, in the economy that people bring at enjoyment rock gas, environmental protection, also to vehicle, brought a potential safety hazard.After repacking rock gas, because supply air line is to install additional below, along with the passing of service time, pipeline aging, compares original gas supply, and gas leakage more easily occurs, if leaked, fail again to find in time the serious danger that may blast.Current gasoline/natural gas double-fuel modifying system both domestic and external does not all have integrated gas leakage alarming device.User can only install Fuel Gas Leak Alarm by the mode installing additional in addition, because gas leakage alarming device and gas control system are separated, once occur after gas leakage alarm, can only be by manually carrying out emergency treatment, manual-lock fuel gas supply.
Summary of the invention
For above-mentioned technological deficiency, the present invention proposes a kind of combustion gas double fuel electric controller with gas leakage warning function and gas leakage detects and alarm method.
In order to solve the problems of the technologies described above, technological scheme of the present invention is as follows:
A combustion gas double fuel electric controller with gas leakage warning function, comprises the automatically controlled ECU of combustion gas, gas leakage sensor, solenoid valve, gas injection rail, decompressor, combustion gas state-indicating switch; Described gas leakage sensor setting on gas supply pipeline, the external gas storage tank in described solenoid valve one end, the other end connects gas injection rail after by decompressor, the automatically controlled ECU of described combustion gas controls the unlatching of solenoid valve, gas leakage sensor or closes; Described gas leakage sensor detects extraneous combustable gas concentration, and the information exchange detecting is crossed to electrical signal is sent to the automatically controlled ECU of combustion gas, and described combustion gas state-indicating switch is connected and controlled by it with the automatically controlled ECU of described combustion gas.
Further, the automatically controlled ECU of described combustion gas is also connected with former car ECU, fuel nozzle, is linked with former car ECU, controls the unlatching of fuel nozzle or closes.
Further, the automatically controlled ECU of described combustion gas comprises mu balanced circuit, MCU microprocessor, spray rail drive circuit, driving circuit for electromagnetic valve, oil-gas switch circuit, analog signal input circuit, digital signal input circuit, communicating circuit, and described mu balanced circuit, spray rail drive circuit, driving circuit for electromagnetic valve, oil-gas switch circuit, analog signal input circuit, digital signal input circuit, communicating circuit are connected with MCU microprocessor and controlled by it; Described spray rail drive circuit is used for driving gas injection rail; Described driving circuit for electromagnetic valve is used for driving solenoid valve.
Gas leakage detects and an alarm method, comprises the steps:
Gas leakage sensor is just activated and starts working by the automatically controlled ECU of combustion gas, when the automatically controlled ECU of combustion gas detects conversion combustion gas condition and meets, can output control signal open solenoid valve, combustion gas meeting is transported to decompressor from gas storage tank, via flowing to gas injection rail after decompressor decompression; The automatically controlled ECU of combustion gas cuts off the fuel injector control signal that outputs to fuel nozzle from former car ECU, exports jet control signal to gas injection rail; Once surpass if the automatically controlled ECU of combustion gas detects airborne combustable gas concentration by gas leakage sensor the warning value of setting, the automatically controlled ECU of combustion gas can cut off solenoid valve at once, stop fuel gas supply, reopen the fuel injector control signal that outputs to fuel nozzle from former car ECU, stop exporting the jet control signal of gas injection rail, make vehicle operation in fuel delivery pattern; The automatically controlled ECU output of combustion gas gas alarm pattern, to combustion gas state-indicating switch, is reported to the police thereby realize.
Further, comprise the steps: after vehicle is flame-out, gas leakage sensor meeting delay working, during this time as there is gas leakage, the automatically controlled ECU of combustion gas can send gas leakage alarm, and after not handling it as user in a period of time of reporting to the police, state of alarm under meeting stop alarm preservation, does not wait next time and open after ignition key, the automatically controlled ECU of combustion gas can send warning again, and reminding user has gas leakage occurred after vehicle is flame-out.
Beneficial effect of the present invention is; The present invention is integrated into gas leakage alarming device in gas control system, once gas leakage be detected, gas control system can be in the situation that not needing manual intervention the very first time carry out emergency treatment, when automatically switching into fuel oil pattern, send acoustooptic alarm reminding user and check gas supply pipeline, thereby improved the active safety of vehicle.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the method flow diagram of the present invention while travelling;
Fig. 3 is the method flow diagram after the present invention stops working.
Gas storage tank 1; Solenoid valve 2; Decompressor 3; Gas injection rail 4; Engine intake manifold 5; Gas leakage sensor 6; The automatically controlled ECU7 of combustion gas; Former car ECU8; Fuel nozzle 9; Combustion gas state-indicating switch 10.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described further.
As shown in Figure 1, a kind of combustion gas double fuel electric controller with gas leakage warning function, comprising: the automatically controlled ECU of combustion gas, gas leakage sensor, solenoid valve, gas injection rail, decompressor, combustion gas state-indicating switch; Diverse location at gas supply pipeline is installed gas leakage sensor, the external gas storage tank in solenoid valve one end, the other end connects gas injection rail after by decompressor, and be connected and controlled by it with the automatically controlled ECU of combustion gas, described gas leakage sensor detects extraneous combustable gas concentration, and the information exchange detecting is crossed to electrical signal is sent to the automatically controlled ECU of combustion gas, detects after gas leakage, the automatically controlled ECU of combustion gas cuts off gas supply automatically, and sends acoustooptic alarm.
The automatically controlled ECU of described combustion gas is comprised of mu balanced circuit, MCU microprocessor, spray rail drive circuit, driving circuit for electromagnetic valve, oil-gas switch circuit, analog signal input circuit, digital signal input circuit, communicating circuit; Described mu balanced circuit, spray rail drive circuit, driving circuit for electromagnetic valve, oil-gas switch circuit, analog signal input circuit, digital signal input circuit, communicating circuit are connected with MCU microprocessor and controlled by it, wherein spray rail drive circuit for driving gas injection rail; Driving circuit for electromagnetic valve is used for driving solenoid valve, after vehicle launch, the automatically controlled ECU of combustion gas can activate gas leakage sensor, gas leakage sensor converts the concentration signal of inflammable gas in the air collecting to magnitude of voltage, through transfer bus, send into the automatically controlled ECU of combustion gas, once detecting combustable gas concentration, the automatically controlled ECU of combustion gas surpasses the warning value of setting, can cut off solenoid valve and stop gas supply, by combustion gas state-indicating switch, send acoustooptic alarm reminding user simultaneously at once.
After the ignition key of vehicle is opened, gas leakage sensor is just activated and starts working by the automatically controlled ECU of combustion gas, when the automatically controlled ECU of combustion gas detects conversion combustion gas condition and meets, can output control signal open solenoid valve, combustion gas meeting is transported to decompressor from gas storage tank, via flowing to gas injection rail after decompressor decompression, now, the automatically controlled ECU of combustion gas can cut off the fuel injector control signal that outputs to fuel nozzle from former car ECU, exports jet control signal to gas injection rail simultaneously.In Vehicle Driving Cycle process, once detecting airborne combustable gas concentration by gas leakage sensor, the automatically controlled ECU of combustion gas surpasses the warning value of setting, the automatically controlled ECU of combustion gas can cut off solenoid valve at once, stop fuel gas supply, reopen the fuel injector control signal that outputs to fuel nozzle from former car ECU, stop exporting the jet control signal of gas injection rail, make vehicle operation in fuel delivery pattern.Meanwhile, the automatically controlled ECU output of combustion gas gas alarm pattern arrives combustion gas state-indicating switch, all tutorial light output alarm buzzer on combustion gas state-indicating switch meeting flasher.After vehicle is flame-out, the automatically controlled ECU of combustion gas can not close gas leakage sensor at once, then gas leakage sensor a period of time of can working just closes, during this time as there is gas leakage, the automatically controlled ECU of combustion gas can send gas leakage alarm, and after a period of time user that reports to the police handles it, state of alarm under meeting stop alarm preservation, does not wait next time and open after ignition key, the automatically controlled ECU of combustion gas can send warning again, and reminding user has gas leakage occurred after vehicle is flame-out.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, without departing from the inventive concept of the premise; can also make some improvements and modifications, these improvements and modifications also should be considered as in protection domain of the present invention.
Claims (5)
1. with a combustion gas double fuel electric controller for gas leakage warning function, it is characterized in that, comprise the automatically controlled ECU of combustion gas, gas leakage sensor, solenoid valve, gas injection rail, decompressor, combustion gas state-indicating switch; Described gas leakage sensor setting on gas supply pipeline, the external gas storage tank in described solenoid valve one end, the other end connects gas injection rail after by decompressor, the automatically controlled ECU of described combustion gas controls the unlatching of solenoid valve, gas leakage sensor or closes; Described gas leakage sensor detects extraneous combustable gas concentration, and the information exchange detecting is crossed to electrical signal is sent to the automatically controlled ECU of combustion gas, and described combustion gas state-indicating switch is connected and controlled by it with the automatically controlled ECU of described combustion gas.
2. a kind of combustion gas double fuel electric controller with gas leakage warning function according to claim 1, it is characterized in that, the automatically controlled ECU of described combustion gas is also connected with former car ECU, fuel nozzle, is linked with former car ECU, controls the unlatching of fuel nozzle or closes.
3. a kind of combustion gas double fuel electric controller with gas leakage warning function according to claim 1, it is characterized in that, the automatically controlled ECU of described combustion gas comprises mu balanced circuit, MCU microprocessor, spray rail drive circuit, driving circuit for electromagnetic valve, oil-gas switch circuit, analog signal input circuit, digital signal input circuit, communicating circuit, and described mu balanced circuit, spray rail drive circuit, driving circuit for electromagnetic valve, oil-gas switch circuit, analog signal input circuit, digital signal input circuit, communicating circuit are connected with MCU microprocessor and controlled by it; Described spray rail drive circuit is used for driving gas injection rail; Described driving circuit for electromagnetic valve is used for driving solenoid valve.
4. gas leakage detects and an alarm method, it is characterized in that, comprises the steps:
Gas leakage sensor is just activated and starts working by the automatically controlled ECU of combustion gas, when the automatically controlled ECU of combustion gas detects conversion combustion gas condition and meets, can output control signal open solenoid valve, combustion gas is transported to decompressor from gas storage tank, via flowing to gas injection rail after decompressor decompression; The automatically controlled ECU of combustion gas cuts off the fuel injector control signal that outputs to fuel nozzle from former car ECU, exports jet control signal to gas injection rail; Once surpass if the automatically controlled ECU of combustion gas detects airborne combustable gas concentration by gas leakage sensor the warning value of setting, the automatically controlled ECU of combustion gas can cut off solenoid valve at once, stop fuel gas supply, reopen the fuel injector control signal that outputs to fuel nozzle from former car ECU, stop exporting the jet control signal of gas injection rail, make vehicle operation in fuel delivery pattern; The automatically controlled ECU output of combustion gas gas alarm pattern, to combustion gas state-indicating switch, is reported to the police thereby realize.
5. a kind of gas leakage according to claim 4 detects and alarm method, it is characterized in that, comprise the steps: after vehicle is flame-out, gas leakage sensor meeting delay working, during this time as there is gas leakage, the automatically controlled ECU of combustion gas can send gas leakage alarm, state of alarm under meeting stop alarm preservation after not handling it as user in a period of time of reporting to the police, Deng opening after ignition key next time, the automatically controlled ECU of combustion gas can send warning again, and reminding user has gas leakage occurred after vehicle is flame-out.
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| CN201410452857.7A CN104153894A (en) | 2014-09-05 | 2014-09-05 | Fuel gas dual-fuel electrical control device with fuel gas leakage alarm function, and fuel gas leakage detection and alarming method |
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| CN201410452857.7A CN104153894A (en) | 2014-09-05 | 2014-09-05 | Fuel gas dual-fuel electrical control device with fuel gas leakage alarm function, and fuel gas leakage detection and alarming method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792661A (en) * | 2015-03-19 | 2015-07-22 | 中国石油化工股份有限公司 | Liquefied natural gas leakage diffusion fire disaster integrated experimental platform |
| CN104879226A (en) * | 2015-05-19 | 2015-09-02 | 贵州大学 | Fuel control system for double-fuel engine of automobile |
| CN105216803A (en) * | 2015-10-30 | 2016-01-06 | 南车资阳机车有限公司 | A kind of methane safe-guard system of hybrid fuel locomotive |
| CN105240162A (en) * | 2015-10-30 | 2016-01-13 | 南车资阳机车有限公司 | Fuel mode switching system for double-fuel locomotive and switching method of fuel mode switching system |
| CN105508048A (en) * | 2015-12-30 | 2016-04-20 | 中国第一汽车股份有限公司 | Detection method and detection system of leakage of gas guide rail of natural gas engine |
| CN105888908A (en) * | 2016-04-08 | 2016-08-24 | 中国第汽车股份有限公司 | Natural gas engine gas track leakage detection method |
| CN109790784A (en) * | 2016-09-22 | 2019-05-21 | 罗伯特·博世有限公司 | The function monitoring of solenoid valve for fuel injection system |
| CN110657037A (en) * | 2019-09-29 | 2020-01-07 | 潍柴西港新能源动力有限公司 | Method for detecting leakage of gas supply system of natural gas engine |
| CN112590554A (en) * | 2020-12-23 | 2021-04-02 | 武汉格罗夫氢能汽车有限公司 | Safety control system for fuel gas leakage of hydrogen energy automobile |
| US11117449B2 (en) | 2016-09-16 | 2021-09-14 | Carrier Corporation | Fuel system control for refrigeration unit engine |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104792661A (en) * | 2015-03-19 | 2015-07-22 | 中国石油化工股份有限公司 | Liquefied natural gas leakage diffusion fire disaster integrated experimental platform |
| CN104792661B (en) * | 2015-03-19 | 2018-03-23 | 中国石油化工股份有限公司青岛安全工程研究院 | A kind of On Lng Leakage spreads fire integration experimental platform |
| CN104879226A (en) * | 2015-05-19 | 2015-09-02 | 贵州大学 | Fuel control system for double-fuel engine of automobile |
| CN105240162B (en) * | 2015-10-30 | 2017-08-25 | 中车资阳机车有限公司 | A kind of double fuel railroad fuel mode switching system and its switching method |
| CN105240162A (en) * | 2015-10-30 | 2016-01-13 | 南车资阳机车有限公司 | Fuel mode switching system for double-fuel locomotive and switching method of fuel mode switching system |
| CN105216803A (en) * | 2015-10-30 | 2016-01-06 | 南车资阳机车有限公司 | A kind of methane safe-guard system of hybrid fuel locomotive |
| CN105508048A (en) * | 2015-12-30 | 2016-04-20 | 中国第一汽车股份有限公司 | Detection method and detection system of leakage of gas guide rail of natural gas engine |
| CN105508048B (en) * | 2015-12-30 | 2018-02-06 | 中国第一汽车股份有限公司 | The detection method of the combustion gas guide rail leak detection systems of natural gas engine |
| CN105888908A (en) * | 2016-04-08 | 2016-08-24 | 中国第汽车股份有限公司 | Natural gas engine gas track leakage detection method |
| US11117449B2 (en) | 2016-09-16 | 2021-09-14 | Carrier Corporation | Fuel system control for refrigeration unit engine |
| CN109790784A (en) * | 2016-09-22 | 2019-05-21 | 罗伯特·博世有限公司 | The function monitoring of solenoid valve for fuel injection system |
| CN110657037A (en) * | 2019-09-29 | 2020-01-07 | 潍柴西港新能源动力有限公司 | Method for detecting leakage of gas supply system of natural gas engine |
| CN112590554A (en) * | 2020-12-23 | 2021-04-02 | 武汉格罗夫氢能汽车有限公司 | Safety control system for fuel gas leakage of hydrogen energy automobile |
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Application publication date: 20141119 |
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