CN104494443B - Intelligent vehicle gas safety control device and control method - Google Patents
Intelligent vehicle gas safety control device and control method Download PDFInfo
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Abstract
The invention provides an intelligent vehicle gas safety control device and control method for 24-hour real-time car gas safety monitoring, gas leakage alarming and intelligent malfunction processing. According to the technical scheme, the intelligent vehicle gas safety control device consists of a gas concentration sensor module, a vehicle gas safety control module, a car electronic control unit gas safety monitoring and processing module and wiring harnesses for connecting the gas concentration sensor module, the vehicle gas safety control module and the car electronic control unit gas safety monitoring and processing module. By adopting the control device and the control method, the gas safety of a car can be monitored in real time all weather according to different concentration of the gas leakage, the gas leakage alarming and intelligent malfunction processing can be carried out in different areas and different stages, people inside the car can be reminded of checking the gas leakage by virtue of alarming and also can be reminded of taking effective measures to guarantee the gas safety, and safety accidents caused by the gas leakage can be effectively avoided.
Description
Technical field
The present invention relates to a kind of intelligence control system is and in particular to a kind of vehicle fuel safety intelligent control device and control
Method.
Background technology
As clean energy resource, its main component is alkane to natural gas, and wherein methane accounts for the overwhelming majority, separately has a small amount of second
Alkane, propane and butane, mainly proper use of, natural gas is that comparison is safe.Constantly develop, become with natural gas used for automobile technology
Ripe, and it has that unit calorific value is high, exhaust pollution is little, supply is reliable, the low advantage of price, natural gas is used more and more widely
In automobile.As motor vehicle fuel, natural gas has compressed natural gas (cng) and two kinds of liquefied natural gas (lng).Due to natural gas
Lta and easily dissipate, if natural gas leaking occurring and assembling when reaching certain concentration, just have the danger of blast.
In recent years, often there is the gas combustion automobile security incident causing because of gas leakage, it is therefore necessary to automobile-used combustion
The safety of gas carries out monitor in real time.In order to avoid causing security incident because of gas leakage, the detection method commonly used at present has:
First, traditional leak detection liquid detection method, quickly and easily, but need to will be equal to in-car gas piping and combustion gas parts junction
Detected, be only applicable to detection when gas burning system is installed.
2nd, the product reported to the police by detecting gas leakage concentration to realize is detected, this kind of product generally has and lacks as follows
Fall into:
1st, single function, can only simple realization gas leakage alarm, these systems only have 1 alarm point (warning concentration),
And a usually default fixed value, that is, warning concentration cannot change；
2nd, detectable leakage scope is little, and maximum only can support 3 leakage concentration sensors；
3rd, product power consumption is larger, and vehicle also stops monitoring after stopping immediately, otherwise can cause and cannot open because of storage battery power shortage
The fault of electrical automobile；
4th, part system is outer except reporting to the police, and is also integrated with solenoid valve control and cuts off source of the gas, especially when running into single-fuel vapour
Che Shi, also cannot realize cutting off source of the gas function；
If 5 leakage concentration detection sensors break down, no any prompting is it is impossible to ensure to use gas safety.
Content of the invention
For above-mentioned weak point of the prior art, the present invention is intended to provide a kind of round-the-clock real-time bus gas safe
The vehicle fuel safety intelligent control device that monitoring, gas leakage alarm and intelligent fault are processed.
To achieve these goals, technical scheme: a kind of vehicle fuel safety intelligent control device, it includes
There are gas concentration sensor assembly, vehicle fuel safety control module, the monitoring of vehicle electronic control unit gas safe and process
Wire harness between module and connection three, wherein said vehicle fuel safety control module includes:
Gas concentration collecting sensor signal module, for gathering described gas concentration sensor die block signal；
Gas safe subregion staged care module, for gas safe subregion staged care；
Gas safe selftest module, is used for realizing self detection, judges whether described gas concentration sensor assembly
Open circuit and fault, and show testing result；
Power management module, for providing electric energy；
Gas safe subregion classifying alarm module, for gas safe subregion classifying alarm；
Gas safe information subregion hierarchical transmission module, for exporting gas safe information to described Vehicle Electronic Control
The monitoring of unit gas safe and processing module, the monitoring of this vehicle electronic control unit gas safe and processing module are according to receiving
Gas safe information coordinate described gas safe subregion staged care module to carry out subregion staged care to gas safe；
Vehicle fuel safety governor, for coordinating the master controller effectively running between each module.
Gas concentration sensor assembly position each on car installed by gas concentration collecting sensor signal module
The monitoring signals being generated are acquired, and are analyzed by vehicle fuel safety governor, according to corresponding accident treatment rank
Carry out subregion warning and safe handling, can be prevented effectively from and cause security incident because of gas leakage, it is round-the-clock right in real time to realize
Automobile carries out gas safe monitoring, gas leakage alarm and intelligent fault and processes.
Further, described gas concentration sensor die number of blocks is 1～8, and described gas concentration sensor assembly
For semiconductor-type low-power consumption gas concentration sensor assembly, had on automobile by a considerable amount of gas concentration sensor assemblies
The region of gas leakage may be produced or position carries out fixed point monitoring, the leakage accident of vehicle fuel can be grasped completely, to ensure
System carries out corresponding coping strategy process by each leakage intensity.
Further, it is integrated with low power dissipation design semiconductor-type gas sensor in described gas concentration sensor assembly, and
The signal corresponding from high, medium and low three kinds of different concentration can be exported according to the difference of gas leakage concentration, by height, in,
Low three kinds different concentration form three kinds of signals, are suitable for the safe class of vehicle fuel leakage completely, accomplish vehicle fuel
Varying strength leaks, and all can give corresponding safe handling, disposal ability is strong.
Further, described vehicle fuel safety control module can to described gas concentration sensor assembly produced signal
High, medium and low three kinds of variable concentrations carry out from setting, by gas concentration sensor assembly is produced with the difference corresponding to signal
Concentration carries out, from setting, to meet the gas safe Based Intelligent Control of different automobile types.
Another object of the present invention also resides in the control method disclosing a kind of vehicle fuel safety intelligent control device, its bag
Including step has,
S1, by 1～8 gas concentration sensor assembly be directed to automobile on have risk of leakage position carry out real-time monitoring；
S2, gas concentration sensor assembly are directed to the difference of gas leakage concentration, export high, medium and low three kinds of signals, by firing
The signal that gas concentration sensor signal acquisition module is generated to gas concentration sensor assembly is acquired；
S3, vehicle fuel safety governor analyze the signal that described gas concentration collecting sensor signal module is gathered,
Control described gas safe subregion staged care module, gas safe subregion classifying alarm module for unlike signal respectively
Carry out corresponding signal processing；
S4, described gas safe information subregion hierarchical transmission module are by gas safe information output to described automotive electronics
In the monitoring of control unit gas safe and processing module, described vehicle electronic control unit gas safe monitoring and processing module are joined
Close described gas safe subregion staged care module and carry out signal processing.
Gas concentration sensor assembly position each on car installed by gas concentration collecting sensor signal module
The monitoring signals being generated are acquired, and are analyzed by vehicle fuel safety governor, according to corresponding accident treatment rank
Carry out subregion warning and safe handling, can be prevented effectively from and cause security incident because of gas leakage, this control method can achieve
Round-the-clock gas safe monitoring, gas leakage alarm and the intelligent fault of in real time automobile being carried out is processed.
Further, described vehicle fuel safety governor the produced signal to described gas concentration sensor assembly in advance
High, medium and low three kinds of concentration set.
Further, described vehicle fuel safety governor passes through gas safe selftest module in real time to described gas concentration
Sensor assembly is monitored, and judges whether described gas concentration sensor assembly open circuit and fault, and shows detection
Result.
Further, for three kinds of signals high, medium and low produced by described gas concentration sensor assembly, described combustion gas
Security partitioning domain classifying alarm module divides high, medium and low three-level response, wherein, when alarm signal is rudimentary, only light flash report
Alert；When alarm signal is middle rank, carry out light flash audio alert simultaneously；When alarm signal is senior, improve light flash report
The alert frequency with audio alert.
Further, for three kinds of signals high, medium and low produced by described gas concentration sensor assembly, described combustion gas
Security partitioning domain staged care module, the monitoring of described vehicle electronic control unit gas safe and processing module are respectively high, medium and low
Three-level responds, wherein,
When process signal is rudimentary, described gas safe subregion staged care module will improve corresponding gas concentration automatically
The frequency acquisition of collecting sensor signal module, and the monitoring of described vehicle electronic control unit gas safe and processing module are not located
Reason；
When process signal is middle rank, described gas safe subregion staged care module judges whether leakage region is starting
In cabin, crew module or luggage compartment, if so, then Fuel switching is opened by this gas safe subregion staged care module control and open
Close, and ask described vehicle electronic control unit gas safe monitoring and processing module to carry out Fuel switching, described automotive electronics
The monitoring of control unit gas safe and processing module control air demand, restricted speed；
When process signal is senior, described gas safe subregion staged care module opens Fuel switching switch immediately,
The monitoring of described vehicle electronic control unit gas safe and processing module carry out Fuel switching, disconnect gas cylinder electromagnetic valve after, described
Gas safe subregion staged care module is automatically switched off gas cylinder electromagnetic valve and fuel gas pipeline electromagnetic valve.
Further, stop and gas concentration collecting sensor signal module is not when collecting signal, vehicle fuel safety
Controller controls described gas concentration sensor assembly to enter low power operation pattern.
Beneficial effects of the present invention: can be according to the variable concentrations of gas leakage, the round-the-clock gas safe to automobile in real time
Monitoring, and subregion graduation carries out gas leakage alarm and intelligent fault is processed, and to remind occupant to enter by reporting to the police
While row gas leakage investigation, independently take effective measures to guarantee to use gas safety, be prevented effectively from and cause because of gas leakage
Security incident.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the entire block diagram of the present invention；
Fig. 2 is the structured flowchart of vehicle fuel safety control module in Fig. 1.
Specific embodiment
To further describe the present invention with reference to specific embodiment and accompanying drawing.
A kind of vehicle fuel safety intelligent control device as shown in Figure 1 and Figure 2, it includes gas concentration sensor die
Block 1, vehicle fuel safety control module 2, the monitoring of vehicle electronic control unit gas safe and processing module 3 and connection three
Between wire harness, wherein said vehicle fuel safety control module 2 includes:
Gas concentration collecting sensor signal module 4, for gathering described gas concentration sensor assembly 1 signal；
Gas safe subregion staged care module 5, for gas safe subregion staged care；
Gas safe selftest module 6, is used for realizing self detection, judges whether described gas concentration sensor assembly
1 open circuit and fault, and show testing result；
Power management module 7, for providing electric energy；
Gas safe subregion classifying alarm module 9, for gas safe subregion classifying alarm；
Gas safe information subregion hierarchical transmission module 10, for exporting gas safe information to described automotive electronics control
Unit gas safe monitoring processed and processing module 3, that is to say the monitoring of vehicle electronic control unit (ecu) gas safe and process mould
Block 3, the monitoring of this vehicle electronic control unit gas safe and processing module 3 are according to the gas safe information cooperation receiving
Gas safe subregion staged care module 5 carries out subregion staged care to gas safe；
Vehicle fuel safety governor 8, for coordinating the master controller effectively running between each module.
The present invention is sensed by the gas concentration that gas concentration collecting sensor signal module 4 is installed to position each on car
The monitoring signals that device module 1 is generated are acquired, and are analyzed by vehicle fuel safety governor 8, according to corresponding accident
Process rank and carry out subregion warning and safe handling, can be prevented effectively from and cause security incident because of gas leakage, realize whole day
Wait and in real time automobile is carried out with gas safe monitoring, gas leakage alarm and intelligent fault process.
Specifically, described gas concentration sensor assembly 1 quantity is 1～8, at most installs 8, is preferentially installed on automobile
The key area of interior easy leakage or key position, or the size according to vehicle and concrete needs, have leakage wind on automobile
This gas concentration sensor assembly 1 is installed at the position of danger.After the completion of gas concentration sensor assembly 1 initialization, that is, start to detect
Concentration of natural gas in the surrounding of installation position, and export and concentration dependent signal.Described gas concentration sensor assembly 1
For semiconductor-type low-power consumption gas concentration sensor assembly, under parking and no gas safe malfunction, system is entered automatically
Enter low power operation pattern.
It is integrated with low power dissipation design semiconductor-type gas sensor in described gas concentration sensor assembly 1, can be according to combustion
The difference of gas leakage concentration, exports the signal corresponding from high, medium and low three kinds of different concentration, and described vehicle fuel safety
Control module 2 can carry out to high, medium and low three kinds of variable concentrations of the produced signal of described gas concentration sensor assembly 1 certainly setting
Fixed.
Described gas safe subregion classifying alarm module 9, reports to the police for gas safe, can be divided into high, medium and low three-level,
And separated regions simultaneously, possesses light flash and voice alarm function.When alarm signal for rudimentary when, only light flash report
Alert；When alarm signal is middle rank, carry out carrying out audio alert while light flash is reported to the police；When alarm signal for senior when,
Improve the frequency that light flash is reported to the police with audio alert simultaneously, and then reach enough warning functions.All of alarm signal is equal
Unlike signal according to gas concentration sensor assembly 1 carries out corresponding to classification and makes a distinction warning by region.
Gas safe subregion staged care module 5, is processed for gas safe, and this process can be divided into high, medium and low three
Level, and separated regions simultaneously.When low-level signal is detected, module is improved the letter of gas concentration sensor assembly 1 automatically
Number frequency acquisition；When intermediate signal is detected, cross and occur the region of leakage to be mounted in enging cabin, crew module or luggage compartment
Interior, will automatically turn on combustion gas switching switch, request vehicle electronic control unit gas safe monitoring and processing module 3 carry out fuel
Switching；When advanced signal is detected, open Fuel switching switch immediately, after completing Fuel switching, be automatically switched off gas cylinder electricity
Magnet valve and fuel gas pipeline electromagnetic valve, avoid the generation of security incident from source.
Gas safe information subregion hierarchical transmission module 10, for exporting gas safe information to Vehicle Electronic Control list
First gas safe monitoring and processing module 3, this information can divide high, medium and low three-level.
The monitoring of vehicle electronic control unit gas safe and processing module 3, can receive vehicle fuel safety control module 2
The combustion gas fault message going out, i.e. the gas safe information of described gas safe information subregion hierarchical transmission module 10 output,
Carry out response at different level by high, medium and low three-level.When receiving low-level signal, do not carry out special handling；When receiving intermediate signal
When, vehicle electronic control unit gas safe monitoring and processing module 3 will by corresponding control strategy realize restriction air demand,
Restricted speed；When receiving advanced signal, the monitoring of vehicle electronic control unit gas safe and processing module 3 are independently carried out
Fuel switching (being only limitted to oil-gas two-way fuel automobile), disconnect gas cylinder electromagnetic valve, light trouble light to remind driver to stop simultaneously
Car test is looked into.
Power management module 7, is responsible for the power supply of whole system, under dead ship condition, automatically into low power operation
Pattern.
Present invention simultaneously discloses the control method of above-mentioned vehicle fuel safety intelligent control device, it includes step has,
S1, by 1～8 gas concentration sensor assembly 1 be directed to automobile on have risk of leakage position carry out real-time monitoring；
S2, gas concentration sensor assembly 1 are directed to the difference of gas leakage concentration, export high, medium and low three kinds of signals, by
The signal that gas concentration collecting sensor signal module 4 is generated to gas concentration sensor assembly 1 is acquired；
S3, vehicle fuel safety governor 8 analyze the letter that described gas concentration collecting sensor signal module 4 is gathered
Number, control described gas safe subregion staged care module 5, gas safe subregion classifying alarm respectively for unlike signal
Module 9 carries out corresponding signal processing；
S4, described gas safe information subregion hierarchical transmission module 10 are by gas safe information output to described automobile electricity
In the monitoring of sub-control unit gas safe and processing module 3, described vehicle electronic control unit gas safe is monitored and is processed mould
Block 3 coordinates described gas safe subregion staged care module 5 to carry out signal processing.
Specifically, described vehicle fuel safety governor 8 passes through gas safe selftest module 6 in real time to described gas concentration
Sensor assembly 1 is monitored, and judges whether that described gas concentration sensor assembly 1 is opened a way and fault, and shows inspection
Survey result.
When stopping and gas concentration collecting sensor signal module 4 does not collect signal, vehicle fuel safety governor 8
Described gas concentration sensor assembly 1 is controlled to enter low power operation pattern.
Described vehicle fuel safety governor 8 in advance to the height of the produced signal of described gas concentration sensor assembly 1,
In, low three kinds of concentration are set.
For three kinds of signals high, medium and low produced by described gas concentration sensor assembly 1, described gas safe subregion
The high, medium and low three-level of 9 points of domain classifying alarm module responds, and wherein, when alarm signal is rudimentary, only light flash is reported to the police；Alarm signal
Number for middle rank when, carry out light flash audio alert simultaneously；When alarm signal is senior, improves light flash and report to the police and voice reporting
Alert frequency.
For three kinds of signals high, medium and low produced by described gas concentration sensor assembly 1, described gas safe subregion
Domain staged care module 5, the monitoring of described vehicle electronic control unit gas safe and processing module 3 are divided equally high, medium and low three-level and are rung
Should, wherein,
When process signal is rudimentary, it is dense that described gas safe subregion staged care module 5 will improve corresponding combustion gas automatically
The frequency acquisition of degree collecting sensor signal module 4, and the monitoring of described vehicle electronic control unit gas safe and processing module 3
Do not process；
When process signal is middle rank, described gas safe subregion staged care module 5 judges whether leakage region is being sent out
In motivation cabin, crew module or luggage compartment, if so, then fuel is opened by the control of this gas safe subregion staged care module 5 and cut
Change switch, and ask described vehicle electronic control unit gas safe monitoring and processing module 3 to carry out Fuel switching, described automobile
The monitoring of electronic control unit gas safe and processing module 3 control air demand, restricted speed；
When process signal is senior, described gas safe subregion staged care module 5 opens Fuel switching switch immediately,
The monitoring of described vehicle electronic control unit gas safe and processing module 3 carry out Fuel switching, disconnect gas cylinder electromagnetic valve after, described
Gas safe subregion staged care module 5 is automatically switched off gas cylinder electromagnetic valve and fuel gas pipeline electromagnetic valve.
Gas concentration sensor assembly position each on car installed by gas concentration collecting sensor signal module 4
1 monitoring signals being generated are acquired, and are analyzed by vehicle fuel safety governor 8, according to corresponding accident treatment level
Do not carry out subregion warning and safe handling, can be prevented effectively from and cause security incident because of gas leakage, this control method can be real
Existing round-the-clock gas safe monitoring, gas leakage alarm and the intelligent fault of in real time automobile being carried out is processed.
The technical scheme above embodiment of the present invention being provided is described in detail, specific case used herein
The principle and embodiment of the embodiment of the present invention is set forth, the explanation of above example is only applicable to help understand this
The principle of inventive embodiments；Simultaneously for one of ordinary skill in the art, according to the embodiment of the present invention, in specific embodiment party
All will change in formula and range of application, in sum, this specification content should not be construed as limitation of the present invention.
Claims (9)
1. a kind of vehicle fuel safety intelligent control device it is characterised in that: include gas concentration sensor assembly (1), car
With gas safe control module (2), vehicle electronic control unit gas safe monitoring and processing module (3) and connect three it
Between wire harness, wherein said vehicle fuel safety control module (2) includes:
Gas concentration collecting sensor signal module (4), for gathering described gas concentration sensor assembly (1) signal；
Gas safe subregion staged care module (5), for gas safe subregion staged care；For described gas concentration
High, medium and low three kinds of signals produced by sensor assembly (1), described gas safe subregion staged care module (5), described
The monitoring of vehicle electronic control unit gas safe and processing module (3) divide equally high, medium and low three-level response, wherein,
When process signal is rudimentary, described gas safe subregion staged care module (5) will improve corresponding gas concentration automatically
The frequency acquisition of collecting sensor signal module (4), and the monitoring of described vehicle electronic control unit gas safe and processing module
(3) do not process；
When process signal is middle rank, described gas safe subregion staged care module (5) judges whether leakage region is starting
In cabin, crew module or luggage compartment, if so, then fuel is opened by the control of this gas safe subregion staged care module (5) and cut
Change switch, and ask described vehicle electronic control unit gas safe monitoring and processing module (3) to carry out Fuel switching, described vapour
The monitoring of car electronic control unit gas safe and processing module (3) control air demand, restricted speed；
When process signal is senior, described gas safe subregion staged care module (5) opens Fuel switching switch, institute immediately
State vehicle electronic control unit gas safe monitoring and processing module (3) carry out Fuel switching, disconnect gas cylinder electromagnetic valve after, described
Gas safe subregion staged care module (5) is automatically switched off gas cylinder electromagnetic valve and fuel gas pipeline electromagnetic valve；
Gas safe selftest module (6), is used for realizing self detection, judges whether described gas concentration sensor assembly
(1) open circuit and fault, and show testing result；
Power management module (7), for providing electric energy；
Gas safe subregion classifying alarm module (9), for gas safe subregion classifying alarm；
Gas safe information subregion hierarchical transmission module (10), for exporting gas safe information to described Vehicle Electronic Control
The monitoring of unit gas safe and processing module (3), the monitoring of this vehicle electronic control unit gas safe and processing module (3) basis
The gas safe information receiving coordinates described gas safe subregion staged care module (5) to carry out subregion to gas safe
Staged care；
Vehicle fuel safety governor (8), for coordinating the master controller effectively running between each module.
2. vehicle fuel safety intelligent control device according to claim 1 it is characterised in that: described gas concentration sensing
Device module (1) quantity is 1～8, and described gas concentration sensor assembly (1) is that semiconductor-type low-power consumption gas concentration senses
Device module.
3. vehicle fuel safety intelligent control device according to claim 2 it is characterised in that: described gas concentration sensing
Be integrated with low power dissipation design semiconductor-type gas sensor in device module (1), and can according to the difference of gas leakage concentration, export with
The corresponding signal of high, medium and low three kinds of different concentration.
4. vehicle fuel safety intelligent control device according to claim 3 it is characterised in that: described vehicle fuel safety
Control module (2) can be carried out to high, medium and low three kinds of variable concentrations of the produced signal of described gas concentration sensor assembly (1)
From setting.
5. the control method according to the arbitrary described vehicle fuel safety intelligent control device of claim 1-4 it is characterised in that: bag
Including step has,
S1, by 1～8 gas concentration sensor assembly (1) be directed to automobile on have risk of leakage position carry out real-time monitoring；
S2, gas concentration sensor assembly (1) are directed to the difference of gas leakage concentration, export high, medium and low three kinds of signals, by firing
The signal that gas concentration sensor signal acquisition module (4) is generated to gas concentration sensor assembly (1) is acquired；
S3, vehicle fuel safety governor (8) analyze the letter that described gas concentration collecting sensor signal module (4) is gathered
Number, control described gas safe subregion staged care module (5), gas safe subregion classification report respectively for unlike signal
Alert module (9) carries out corresponding signal processing；
S4, described gas safe information subregion hierarchical transmission module (10) are by gas safe information output to described automotive electronics
In the monitoring of control unit gas safe and processing module (3), described vehicle electronic control unit gas safe is monitored and is processed mould
Block (3) coordinates described gas safe subregion staged care module (5) to carry out signal processing.
6. according to claim 5 vehicle fuel safety intelligent control device control method it is characterised in that: described automobile-used
Gas safe controller (8) the high, medium and low three kinds of concentration to the produced signal of described gas concentration sensor assembly (1) in advance
Set.
7. according to claim 5 vehicle fuel safety intelligent control device control method it is characterised in that: described automobile-used
Gas safe controller (8) is supervised to described gas concentration sensor assembly (1) in real time by gas safe selftest module (6)
Survey, and judge whether described gas concentration sensor assembly (1) open circuit and fault, and show testing result.
8. according to claim 5 vehicle fuel safety intelligent control device control method it is characterised in that: for described
High, medium and low three kinds of signals produced by gas concentration sensor assembly (1), described gas safe subregion classifying alarm module
(9) divide high, medium and low three-level response, wherein, when alarm signal is rudimentary, only light flash is reported to the police；When alarm signal is middle rank,
Carry out light flash audio alert simultaneously；When alarm signal is senior, improve the frequency that light flash is reported to the police with audio alert.
9. according to claim 5 vehicle fuel safety intelligent control device control method it is characterised in that: stop and fire
When gas concentration sensor signal acquisition module (4) does not collect signal, vehicle fuel safety governor (8) controls described combustion gas dense
Degree sensor assembly (1) enters low power operation pattern.
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| CN105464821A (en) * | 2015-12-30 | 2016-04-06 | 广西玉柴机器股份有限公司 | Self-service control device for vehicle gas |
| CN106128044A (en) * | 2016-08-23 | 2016-11-16 | 重庆盟讯电子科技有限公司 | A kind of gas combustion automobile tolerance display leakage alarm |
| CN107082404A (en) * | 2017-05-12 | 2017-08-22 | 海湾环境科技（北京）股份有限公司 | Oil gas monitoring method and oil gas monitoring system |
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| CN112918259A (en) * | 2021-03-15 | 2021-06-08 | 北京科技大学 | Hydrogen leakage safety grading alarm system for hydrogen energy automobile |
| CN115713840A (en) * | 2022-10-08 | 2023-02-24 | 重庆中烟工业有限责任公司 | Natural gas leakage-proof linkage alarm system |
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| CN203449920U (en) * | 2013-08-16 | 2014-02-26 | 东南（福建）汽车工业有限公司 | Natural gas leakage control device for CNG (Compressed Natural Gas) automobile |
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| CN104494443A (en) | 2015-04-08 |
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Inventor after: Zou Bowen Inventor after: Wu Xiangchang Inventor after: Ge Xiaocheng Inventor after: Liu Jungang Inventor after: Li Jingbo Inventor after: Lin Xiaojiao Inventor before: Zou Bowen |