CN203756344U - Fuel selecting system of electric control dual-fuel engine - Google Patents
Fuel selecting system of electric control dual-fuel engine Download PDFInfo
- Publication number
- CN203756344U CN203756344U CN201420039337.9U CN201420039337U CN203756344U CN 203756344 U CN203756344 U CN 203756344U CN 201420039337 U CN201420039337 U CN 201420039337U CN 203756344 U CN203756344 U CN 203756344U
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- Prior art keywords
- fuel
- engine
- signal sensor
- gas
- control unit
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- 239000000446 fuel Substances 0.000 title claims abstract description 129
- 238000012545 processing Methods 0.000 claims abstract description 21
- 239000007921 spray Substances 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 40
- 239000011435 rock Substances 0.000 description 22
- 239000002283 diesel fuel Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000000567 combustion gas Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012857 repacking Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
A fuel selecting system of an electric control dual-fuel engine comprises a fuel selecting device (1), a master control unit (2) and an execution unit (3), wherein the fuel selecting device (1) comprises a fuel selecting switch (4) and a signal processing device (5). The master control unit (2) comprises an engine ECU controller (6), an accelerator pedal signal sensor (7), an engine rotation signal sensor (8) and a crankshaft signal sensor (9). The execution unit comprises a fuel spray nozzle (10) and a gas spray nozzle (11), wherein the engine ECU controller (6) is respectively connected with the fuel spray nozzle (10) and the gas spray nozzle (11) through an automotive CAN bus, and the signal processing device (5) is respectively connected with the fuel selecting switch (4), the engine ECU controller (6), the accelerator pedal signal sensor (7), the engine rotation signal sensor (8) and the crankshaft signal sensor (9) through the automotive CAN bus.
Description
Technical field
The utility model relates to a kind of Double-fuel motor fuel selective system, relates in particular a kind of electrically controlled dual-fuel motor fuel selective system, belongs to engine electronic control system technical field.
Background technique
At present, the world is faced with energy scarcity and environmental protection pressure problem, and in order to alleviate the problems referred to above, duel fuel engine is born thereupon; Rock gas is a kind of high-grade energy of clean environmental protection, it has good Economy and lower disposal of pollutants, be considered to optimal vehicle alternative fuel, so rock gas and Diesel Dual-Fuel Engine feature superior with its emission performance, good economical benefit more and more come into one's own.
Yet on domestic market, the gas station of rock gas seldom, is unfavorable for that the energy of rock gas and Diesel Dual-Fuel Engine is filled, and makes vehicle course continuation mileage restricted, causes the application of rock gas and Diesel Dual-Fuel Engine comparatively to be limited to; And the regional price of rock gas differs greatly, part area gas price is amounted to cost ratio and is used diesel-fuel price also high, therefore needs rock gas and Diesel Dual-Fuel Engine can realize at any time Fuel switching.But existing rock gas and Diesel Dual-Fuel Engine are controlled and COMM communication exists the defects such as complex structure, poor reliability, maintenance inconvenience, cause it to apply in real life on a large scale; And existing rock gas and Diesel Dual-Fuel Engine are most of is later stage repacking, on Fuel switching, control simple, if driver's misoperation Fuel switching button, system can switch to rock gas according to false command, motor there will be suddenly and runs out of steam,, there is the hidden danger that causes traffic accident in the problem such as flame-out; Even if some control is comparatively accurate, but it switches fuel requirement could realize the switching of fuel under exacting terms very.Therefore, a kind of rock gas and Diesel Dual-Fuel Engine fuel mutual converting system is constantly provided, make its conversion no longer be confined to the specific factors such as a certain rotating speed, a certain load, but at any time can be according to operator's intention, and switch flexibly in conjunction with car load and generator operating conditions, and the component at other positions of motor are not changed is the problem that those skilled in the art need solution badly.
Chinese invention patent application publication No.: CN 103016168A, April 8 2013 Shen Qing Publication day, day, were called: disclose a kind of diesel engine/natural gas double fuel engine control gear in the application for a patent for invention of < < diesel engine/natural gas double fuel engine automatical control system > >, it is retaining on the basis of former engine control system, increase a set of diesel oil and combustion gas control unit, each sensor signal of former machine is shared by the automatical control system of dual-fuel control system and former machine; The fuel gas injection system that the double fuel control unit increasing can be controlled diesel injection and install additional, and process with the relevant signal of gas burning system.This control system can accurately be controlled diesel injection amount and time for spraying according to the different working state of diesel engine, can control the time for spraying of rock gas simultaneously and spray the duration; Thereby guarantee the operation of duel fuel engine safety and steady, lower fuel consumption, reduce exhaust emissions.But first, this device is integrated in a control unit, need to control diesel spray when double fuel, the reliability of controlling complexity not only but also control unit self needs checking; Secondly, its switch condition is comparatively harsh, do not consider the functions such as gas alarm exits, and has larger potential safety hazard; And its later stage repacking is changed larger to car load, cost is higher.
Summary of the invention
The purpose of this utility model is for existing rock gas and the simple harshness of Diesel Dual-Fuel Engine switching controls, has the problems such as potential safety hazard, and a kind of electrically controlled dual-fuel motor fuel selective system is provided.
For achieving the above object, technical solution of the present utility model is: a kind of electrically controlled dual-fuel motor fuel selective system, comprise fuel selection device, main control unit and performance element, described fuel selection device comprises fuel selection switch, described main control unit comprises Engine ECU controller, accelerator pedal signal emitter, engine rotational speed signal sensor and crankshaft-signal sensor, described performance element comprises oil nozzle and gas nozzle, described Engine ECU controller is connected by automobile-used CAN bus with gas nozzle with oil nozzle respectively, in described fuel selection device, also include signal processing apparatus, described signal processing apparatus by automobile-used CAN bus respectively with fuel selection switch, Engine ECU controller, accelerator pedal signal emitter, engine rotational speed signal sensor is connected with crankshaft-signal sensor.
Also include gas alarm device, described gas alarm device is connected by automobile-used CAN bus with signal processing apparatus.
Compared with prior art, the beneficial effects of the utility model are:
1, modern design, simple in structure, realized steadily switching constantly of rock gas and Diesel Dual-Fuel Engine fuel.The utility model comprises fuel selection device, main control unit and performance element, and fuel selection device comprises fuel selection switch and signal processing apparatus; During work, the switching fuel request that signal processing apparatus based on fuel selector switch sends, realize in time, neatly the steady switching of rock gas and Diesel Dual-Fuel Engine fuel, solved the mutual problems such as simple, harsh of controlling that exist of switching between current duel fuel engine fuel.
2, the utility model can lack at rock gas, to diesel emission, require strict region to use pure diesel oil to travel, increased thus the flexibility of rock gas and Diesel Dual-Fuel Engine, compare single-fuel engine, given full play to discharge environment-friendly advantage; And the utility model course continuation mileage is unrestricted, use region unrestricted, can widespread adoption.
3, the utility model can be amounted to price upper zone at rock gas and uses pure diesel oil to travel, and has reduced actual user cost.
4, in the utility model, comprised signal processing apparatus, not only can guarantee that the stability of former diesel engine and reliability are constant, and less to former car change in retrofit process, saved later stage repacking cost, be easy to promote.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: fuel selection device 1, main control unit 2, performance element 3, fuel selection switch 4, signal processing apparatus 5, ECU controller 6, accelerator pedal signal emitter 7, engine rotational speed signal sensor 8, crankshaft-signal sensor 9, oil sprayer 10, gas injector 11, gas alarm device 12.
Embodiment
Below in conjunction with accompanying drawing explanation and embodiment, the utility model is described in further detail.
Referring to Fig. 1, a kind of electrically controlled dual-fuel motor fuel selective system, comprises fuel selection device 1, main control unit 2 and performance element 3; During work, fuel selection device 1 sends Fuel switching signal, and main control unit 2 is accepted Fuel switching signal and sent execution instruction, and the execution instruction that performance element 3 execution main control units 2 send realizes steady Fuel switching.Described fuel selection device 1 comprises fuel selection switch 4 and signal processing apparatus 5, and described fuel selection switch 4 is touch switch, has 2 to select gear: double fuel gear and single fuel gear; Described signal processing apparatus 5 is small-sized signal processing apparatus, mainly input signal is carried out to Treatment Analysis, according to set logic, sends output signal.Described main control unit 2 comprises Engine ECU controller 6, accelerator pedal signal emitter 7, engine rotational speed signal sensor 8, crankshaft-signal sensor 9 and other motor related sensor parts; Described performance element 3 comprises oil nozzle 10, gas nozzle 11 and other power units.Described Engine ECU controller 6 is connected by automobile-used CAN bus with oil nozzle 10, gas nozzle 11 and other power units respectively.Described signal processing apparatus 5 is connected with fuel selection switch 4, Engine ECU controller 6, accelerator pedal signal emitter 7, engine rotational speed signal sensor 8, crankshaft-signal sensor 9 and other motor related sensor parts respectively by automobile-used CAN bus; During work, signal processing apparatus 5, according to engine condition and operator's intention, determines whether fuel switches and switching time.
Referring to Fig. 1, preferred, also include gas alarm device 12, described gas alarm device 12 is connected by automobile-used CAN bus with signal processing apparatus 5; Gas alarm device 12, in order to monitor rock gas residual capacity, when reaching design alarming value, sends alarm signal to signal processing apparatus 5, and signal processing apparatus 5 exits double fuel state or entry deterrence double fuel state in good time.
Referring to Fig. 1, during work, fuel selection device 1 controls by acquisition operations person switching fuel information the binding engine state that fuel selection switch 4 sends, by 5 pairs of current vehicle condition of signal processing apparatus, analyze, in good time ECU controller 6 in main control unit 2 sends Fuel switching request; ECU controller 6 in main control unit 2, after receiving the request of switching fuel, is controlled performance element 3 and is realized the steady switching between double fuel and single fuel; When rock gas lacks, fuel selection device 1 automatically sends and switches to single fuel mode signal, and the now operation of outer bound pair fuel selection switch 4 will no longer produce any effect.Detailed process is as follows:
When operator stirs fuel selection switch 4 and makes it to be positioned at single fuel gear, first information processor 5 in fuel selection device 1 carries out misoperation judgement to this operation, when when judgement, this is operating as operator's true intention, information processor 5 gathers accelerator pedal signal emitter 7, engine rotational speed signal sensor 8, the information of crankshaft-signal sensor 9 and other motor related sensor parts, analyze motor and now whether can carry out Fuel switching: step 1, if can switch, information processor 5 sends and switches fuel request to main control unit 2, ECU controller 6 in main control unit 2 is after receiving the request of switching fuel, to performance element 3, send execution instruction, the appropriate fuel injection quantity that strengthens of oil sprayer 10 in performance element 3, and the jet amount of gas injector 11 appropriate minimizing, realize double fuel to the steady switching of diesel oil list fuel, if step 2 now cannot be switched, fuel selection device 1 will be waited for when switching condition meets, and to main control unit 2, send and will switch fuel request, and executive mode is as shown in step 1 above.
When operator stirs fuel selection switch 4 and makes it to be positioned at double fuel gear, first information processor 5 in fuel selection device 1 carries out misoperation judgement to this operation, when when judgement, this is operating as operator's true intention, information processor 5 gathers accelerator pedal signal emitter 7, engine rotational speed signal sensor 8, the information of crankshaft-signal sensor 9 and other motor related sensor parts, analyze motor and now whether can carry out Fuel switching: step 1, if can switch, information processor 5 sends and switches fuel request to main control unit 2, ECU controller 6 in main control unit 2 is after receiving the request of switching fuel, to performance element 3, send execution instruction, the appropriate fuel injection quantity that reduces of oil sprayer 10 in performance element 3, and the jet amount of gas injector 11 appropriate increase, realizing single fuel steadily switches to double fuel, if step 2 now cannot be switched, fuel selection device 1 will be waited for when switching condition meets, and to main control unit 2, send and will switch fuel request, and executive mode is as shown in step 1 above.
When gas alarm device 12 sends the warning of rock gas shortage, combustion gas selection device 1 sends the signal that switches to single fuel gear from trend main control unit 2, and the now operation of outer bound pair fuel selection switch 4 will no longer produce any effect; When rock gas lacks warning elimination, combustion gas selection device 1, by recovery operation person's control intention, is realized the normal switching of fuel.
When car load starts, the fuel selection switch 4 in fuel selection device 1 is in single fuel mode, and the information processor 5 in combustion gas selection device 1 sends single fuel gear signal from trend main control unit 2.After car load power-off, the state of the fuel selection switch 4 in fuel selection device 1 when maintaining power-off, and information processor 5 is by clear history data.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, said structure all should be considered as belonging to protection domain of the present utility model.
Claims (2)
1. an electrically controlled dual-fuel motor fuel selective system, comprise fuel selection device (1), main control unit (2) and performance element (3), described fuel selection device (1) comprises fuel selection switch (4), described main control unit (2) comprises Engine ECU controller (6), accelerator pedal signal emitter (7), engine rotational speed signal sensor (8) and crankshaft-signal sensor (9), described performance element (3) comprises oil nozzle (10) and gas nozzle (11), described Engine ECU controller (6) is connected by automobile-used CAN bus with gas nozzle (11) with oil nozzle (10) respectively, it is characterized in that: in described fuel selection device (1), also include signal processing apparatus (5), described signal processing apparatus (5) by automobile-used CAN bus respectively with fuel selection switch (4), Engine ECU controller (6), accelerator pedal signal emitter (7), engine rotational speed signal sensor (8) is connected with crankshaft-signal sensor (9).
2. a kind of electrically controlled dual-fuel motor fuel selective system according to claim 1, is characterized in that: also include gas alarm device (12), described gas alarm device (12) is connected by automobile-used CAN bus with signal processing apparatus (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420039337.9U CN203756344U (en) | 2014-01-22 | 2014-01-22 | Fuel selecting system of electric control dual-fuel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420039337.9U CN203756344U (en) | 2014-01-22 | 2014-01-22 | Fuel selecting system of electric control dual-fuel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756344U true CN203756344U (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420039337.9U Expired - Lifetime CN203756344U (en) | 2014-01-22 | 2014-01-22 | Fuel selecting system of electric control dual-fuel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756344U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9776624B1 (en) | 2016-05-04 | 2017-10-03 | Ford Global Technologies, Llc | Method and system for engine control |
| US9873435B2 (en) | 2016-05-04 | 2018-01-23 | Ford Global Technologies, Llc | Method and system for engine control |
| US9925975B2 (en) | 2016-05-04 | 2018-03-27 | Ford Global Technologies, Llc | Method and system for hybrid vehicle control |
| US9944276B2 (en) | 2016-05-04 | 2018-04-17 | Ford Global Technologies, Llc | Method and system for engine control |
| US10060362B2 (en) | 2016-05-04 | 2018-08-28 | Ford Global Technologies, Llc | Method and system for engine control |
| US10145316B2 (en) | 2016-05-04 | 2018-12-04 | Ford Global Technologies, Llc | Method and system for engine control |
-
2014
- 2014-01-22 CN CN201420039337.9U patent/CN203756344U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9776624B1 (en) | 2016-05-04 | 2017-10-03 | Ford Global Technologies, Llc | Method and system for engine control |
| US9873435B2 (en) | 2016-05-04 | 2018-01-23 | Ford Global Technologies, Llc | Method and system for engine control |
| US9925975B2 (en) | 2016-05-04 | 2018-03-27 | Ford Global Technologies, Llc | Method and system for hybrid vehicle control |
| US9944276B2 (en) | 2016-05-04 | 2018-04-17 | Ford Global Technologies, Llc | Method and system for engine control |
| US10060362B2 (en) | 2016-05-04 | 2018-08-28 | Ford Global Technologies, Llc | Method and system for engine control |
| US10145316B2 (en) | 2016-05-04 | 2018-12-04 | Ford Global Technologies, Llc | Method and system for engine control |
| US10378460B2 (en) | 2016-05-04 | 2019-08-13 | Ford Global Technologies, Llc | Method and system for engine control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |
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| CX01 | Expiry of patent term |