CN105464821A - Self-service control device for vehicle gas - Google Patents
Self-service control device for vehicle gas Download PDFInfo
- Publication number
- CN105464821A CN105464821A CN201511019120.7A CN201511019120A CN105464821A CN 105464821 A CN105464821 A CN 105464821A CN 201511019120 A CN201511019120 A CN 201511019120A CN 105464821 A CN105464821 A CN 105464821A
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- China
- Prior art keywords
- gas
- self
- over switch
- ecu
- service control
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
Abstract
The invention discloses a self-service control device for vehicle gas. The self-service control device for the vehicle gas comprises an ECU and a change-over switch, wherein control programs for classifying supplied gas according to the Wobbe indexes are stored in the ECU; the change-over switch is electrically connected with the ECU and comprises different change-over gears, and output signals of all the change-over gears correspond to the components of the gas of all the types one to one; and the ECU starts the different control programs according to the different output signals to control supply of the corresponding gas. By the adoption of the self-service control device for the vehicle gas, the program matched with the components of the current gas can be called in a self-service manner.
Description
Technical field
The present invention relates to field, particularly a kind of self-service control gear of vehicle fuel.
Background technique
Along with the exploitation of alternative energy source, it is supporting with operation that natural gas engine has been widely used in car load.But, because gas component exists geographic difference, and artificially uncontrollablely cause gas component on sale on market and unstable.As everyone knows, for natural gas engine, the rock gas of often kind of heterogeneity needs the power character of the suitable control program of coupling one group (comprising ignition angle, concentration, suction pressure etc.) its best of competence exertion, Economy and emission performance.Otherwise, if the control program preset is not mating by gas componant with current, then not only do not making motor play its optimum performance, may also can damage because of pinking.So, how to realize to become component selections according to current gas and switch one group of suitable control program problem and annoying countless research staff always.
At present, the general way of most domestic motor manufacturer is: artificially revise corresponding control program by known gas component, then entered in ECU by program Solidification, then production marketing.This method cost is lower and relatively reliable.But because various places gas componant differs greatly, be exactly that areal all likely can change in Different periods gas componant, under terminal use's unknown situation, its gas componant used is also unknown, so cannot pre-set program, must wait until that terminal use could final given control program after determining, and also need when gas componant changes producer to revise in continued support after sale.
Thus, the shortcoming of prior art clearly: 1. motor belongs to semifinished product, and car load is only end product, and which region motor can be sold toward when dispatching from the factory and after not knowing to dress up car load, cannot pre-set program.2. terminal use's stand-by period is long.The gas component that necessary first collection terminal user uses, then be back to engine production enterprise, by professional workforce's comparative analysis gas component, and judge whether the gas component that this user uses matches with the current control program of motor.If do not mated, also to again make control program and be delivered to end user location.3. program change procedure is loaded down with trivial details.User oneself does not change the authority of gas componant, can only by authorization service librarian use special tool amendment motor program.Each change all needs connection device, write with a brush dipped in Chinese ink data, expend time in longer.4. for long-distance bus, operating line span is comparatively large, and various places gas componant is also not quite similar, and need to change gas componant and arrange, program cannot be accomplished synchronous in time.
The information being disclosed in this background technique part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
The object of the present invention is to provide a kind of self-service control gear of vehicle fuel, by design gas component throw over switch, can the routine call of self-service realization and current gas mating chemical composition.
For achieving the above object, the invention provides a kind of self-service control gear of vehicle fuel, comprising: ECU, this ECU stores the control program of the fuel gas supply according to wobbe index classification; And throw over switch, it is electrically connected with ECU, and this throw over switch comprises different switching gears, the output signal of each switching gear and the composition one_to_one corresponding of every class combustion gas; Wherein ECU starts different control programs according to different output signals and carries out supply control to the combustion gas of correspondence.
Preferably, throw over switch comprises four and switches gears, these four output signals switching gears respectively with the composition one_to_one corresponding of the four class combustion gas be divided into according to wobbe index.
Preferably, throw over switch comprises control circuit, and control circuit comprises the resistance of four series connection, the magnitude of voltage at each resistance two ends respectively with the composition one_to_one corresponding of four class combustion gas.
Preferably, throw over switch comprises hand knob, switches gear and is switched by hand knob.
Preferably, throw over switch is arranged on installation panel.
Compared with prior art, the present invention has following beneficial effect: by designing a kind of diverter switch and gas component one_to_one corresponding, again control program corresponding for different gas components is implanted this ECU in advance, user can independently switch according to the actual gas source component in locality the service cost that matcher reduces motor producer, when source of the gas changes, user is without the need to waiting for that producer revises, saved time cost, and user gets final product free changeover program without the need to separate diagnostic instrument, convenient flexibly.
Accompanying drawing explanation
Fig. 1 is the control principle drawing of the self-service control gear according to vehicle fuel of the present invention;
Fig. 2 is the structural representation of the throw over switch of self-service control gear according to vehicle fuel of the present invention;
Fig. 3 is the schematic diagram of the plug connector of the throw over switch of self-service control gear according to vehicle fuel of the present invention;
Fig. 4 is the plan view of the throw over switch of self-service control gear according to vehicle fuel of the present invention;
Fig. 5 is the control circuit figure of the throw over switch of self-service control gear according to vehicle fuel of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole specification and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or constituent element, and do not get rid of other element or other constituent element.
As shown in Figures 1 to 5, according to the self-service control gear of a kind of vehicle fuel of the specific embodiment of the invention, comprise ECU and throw over switch, this ECU stores the control program of the fuel gas supply according to wobbe index classification, throw over switch is electrically connected with ECU, this throw over switch comprises different switching gears, the output signal of each switching gear and the composition one_to_one corresponding of every class combustion gas, wherein ECU starts different control programs according to different output signals and carries out supply control to the combustion gas of correspondence.
In such scheme, wobbe index (WobbeIndex is translated into Wobbe index in early days), the volume high calorific power under regulation reference condition is divided by the square root of the relative density under identical regulation metering reference condition.Wobbe index is one of important combustion gas parameter, and its meaning is, has the different gas component of identical wobbe index, under identical firing pressure, can discharge identical heat load.
Research shows, the gas componant that wobbe index is close is negligible to engine performance impacts, this programme utilizes this achievement in research, by gas grouping and classifying close for wobbe index, and control program corresponding for every class gas is implanted ECU in advance, select to switch by throw over switch again, reach user independently can switch suitable procedure object according to current gas composition.
As a kind of preferred embodiment, combustion gas is divided into four classes (A, B, C, D tetra-class gas) according to wobbe index, throw over switch comprises four and switches gears, these four output signals switching gears respectively with the composition one_to_one corresponding of four class combustion gas.In this programme, belong to different classifications according to combustion gas, then the switch transition Switch Controller switching gear of answering, this switching gear outputs signal, and ECU judges the composition of combustion gas according to this output signal, assigns to start corresponding control program according to the one-tenth of combustion gas.
As a kind of preferred embodiment, throw over switch comprises control circuit (see Fig. 5), and control circuit comprises the resistance of four series connection, the magnitude of voltage at each resistance two ends respectively with the composition one_to_one corresponding of four class combustion gas.In this programme, set up the corresponding relation of magnitude of voltage and four class gas components, see table (see Fig. 5):
The each resistance characteristic of switch | The corresponding gas componant of each gear and magnitude of voltage |
R4=1kΩ±1% | 0=gas componant 1 1V |
R3=1kΩ±1% | 1=gas componant 2 2V |
R2=1kΩ±1% | 2=gas componant 3 3V |
R1=2kΩ±1% | 3=gas componant 4 5V |
As a kind of preferred embodiment, throw over switch comprises hand knob 1, switches gear and is switched by hand knob 1.
As a kind of preferred embodiment, throw over switch is arranged on installation panel 3.In this programme, throw over switch can be designed to have index plane board 2 and housing 4, index plane board 2 is marked with four gears (A gas, B gas, C gas, D gas), correspondingly when hand knob 1 points to certain gear connect corresponding resistance and export corresponding magnitude of voltage, index plane board 2 and housing 4 are installed on installation panel 3, in housing 4, control circuit board is set, be fixed on housing 4 by wire buckle 5 after wire 6 is connected with control circuit board, the other end of wire 6 connects connector assembly 7, connector assembly 7 directly can with ECU grafting, connector assembly 7 has signal output 71 and power positive cathode interface.
Working procedure illustrates:
As Fig. 1 shows, before an engine is started, when key operation powers on, control unit (ECU) powers on, ECU reads the magnitude of voltage of " signal output " terminal in Fig. 3, then can determine according to the preset voltage value in Fig. 5 and upper table and gas componant relation the gas componant that current driver's is arranged.ECU, again according to this kind of gas componant, reads the parameter such as ignition advance angle, concentration, suction pressure, electronic throttle aperture of storage inside.Namely following motor runs according to this gas componant parameter preset.When the gas source component that vehicle uses changes, only need, by gas componant current for hand knob 1 sense of rotation shown in Fig. 4, the output voltage values of switch can be changed.Before upper once engine start, when key operation powers on, ECU will judge that gas componant has now changed another kind into, namely uses another set of parameter preset (selection revision program).
To sum up, the self-service control gear of the vehicle fuel of the present embodiment, by designing a kind of diverter switch and gas component one_to_one corresponding, again control program corresponding for different gas components is implanted this ECU in advance, user can independently switch according to the actual gas source component in locality the service cost that matcher reduces motor producer, and when source of the gas changes, user is without the need to waiting for that producer revises, and has saved time cost, and user gets final product free changeover program without the need to separate diagnostic instrument, convenient flexibly.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (5)
1. a self-service control gear for vehicle fuel, is characterized in that, comprising:
ECU, this ECU store the control program of the fuel gas supply according to wobbe index classification; And
Throw over switch, it is electrically connected with described ECU, and this throw over switch comprises different switching gears, the output signal of each switching gear and the composition one_to_one corresponding of every class combustion gas;
Wherein said ECU starts different control programs according to different output signals and carries out supply control to the combustion gas of correspondence.
2. the self-service control gear of vehicle fuel according to claim 1, is characterized in that, described throw over switch comprises four and switches gears, these four output signals switching gears respectively with the composition one_to_one corresponding of the four class combustion gas be divided into according to wobbe index.
3. the self-service control gear of vehicle fuel according to claim 2, it is characterized in that, described throw over switch comprises control circuit, and described control circuit comprises the resistance of four series connection, the magnitude of voltage at each resistance two ends respectively with the composition one_to_one corresponding of described four class combustion gas.
4. the self-service control gear of vehicle fuel according to claim 3, is characterized in that, described throw over switch comprises hand knob, and described switching gear is switched by described hand knob.
5. the self-service control gear of vehicle fuel according to claim 4, is characterized in that, described throw over switch is arranged on installation panel.
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CN201511019120.7A CN105464821A (en) | 2015-12-30 | 2015-12-30 | Self-service control device for vehicle gas |
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CN201511019120.7A CN105464821A (en) | 2015-12-30 | 2015-12-30 | Self-service control device for vehicle gas |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108240261A (en) * | 2017-12-13 | 2018-07-03 | 重庆长安铃木汽车有限公司 | A kind of flexible fuel engine Gas Components Self-learning Controller and control method |
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CN2303931Y (en) * | 1997-12-10 | 1999-01-13 | 马磊 | Gas-oil double fuel apparatus for motor vehicle |
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CN1971013A (en) * | 2005-11-22 | 2007-05-30 | 通用电气公司 | Methods and apparatus for operating gas turbine engine systems |
CN101311630A (en) * | 2007-05-23 | 2008-11-26 | 诺沃皮尼奥内有限公司 | Method and apparatus for controlling the combustion in a gas turbine |
CN101761403A (en) * | 2010-03-04 | 2010-06-30 | 霸州市华威发动机技术有限公司 | Method and device for controlling gas supply of dual-fuel engine |
CN103375286A (en) * | 2012-04-16 | 2013-10-30 | 北京奥润泰克教育科技有限责任公司 | Adaptive gas fuel control system |
EP2711525A1 (en) * | 2011-05-17 | 2014-03-26 | Toyota Jidosha Kabushiki Kaisha | Control system for multifuel internal combustion engine |
CN104494443A (en) * | 2014-12-11 | 2015-04-08 | 重庆凯瑞燃气汽车有限公司 | Intelligent vehicle gas safety control device and control method |
CN105020032A (en) * | 2015-07-31 | 2015-11-04 | 毛志明 | Novel self-adaptation gas fuel control system |
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2015
- 2015-12-30 CN CN201511019120.7A patent/CN105464821A/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN2303931Y (en) * | 1997-12-10 | 1999-01-13 | 马磊 | Gas-oil double fuel apparatus for motor vehicle |
CN1910402A (en) * | 2004-01-12 | 2007-02-07 | 燃料科学和工程公司 | System and method for flame stabilization and control |
CN1971013A (en) * | 2005-11-22 | 2007-05-30 | 通用电气公司 | Methods and apparatus for operating gas turbine engine systems |
CN101311630A (en) * | 2007-05-23 | 2008-11-26 | 诺沃皮尼奥内有限公司 | Method and apparatus for controlling the combustion in a gas turbine |
CN101761403A (en) * | 2010-03-04 | 2010-06-30 | 霸州市华威发动机技术有限公司 | Method and device for controlling gas supply of dual-fuel engine |
EP2711525A1 (en) * | 2011-05-17 | 2014-03-26 | Toyota Jidosha Kabushiki Kaisha | Control system for multifuel internal combustion engine |
CN103375286A (en) * | 2012-04-16 | 2013-10-30 | 北京奥润泰克教育科技有限责任公司 | Adaptive gas fuel control system |
CN104494443A (en) * | 2014-12-11 | 2015-04-08 | 重庆凯瑞燃气汽车有限公司 | Intelligent vehicle gas safety control device and control method |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108240261A (en) * | 2017-12-13 | 2018-07-03 | 重庆长安铃木汽车有限公司 | A kind of flexible fuel engine Gas Components Self-learning Controller and control method |
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