CN201646373U - Device for detecting and controlling oil gas of automobile engine room - Google Patents
Device for detecting and controlling oil gas of automobile engine room Download PDFInfo
- Publication number
- CN201646373U CN201646373U CN2010201700713U CN201020170071U CN201646373U CN 201646373 U CN201646373 U CN 201646373U CN 2010201700713 U CN2010201700713 U CN 2010201700713U CN 201020170071 U CN201020170071 U CN 201020170071U CN 201646373 U CN201646373 U CN 201646373U
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Abstract
The utility model relates to a device for detecting and controlling oil gas of an automobile engine room. The device comprises an oil gas detection sensor, a central controller, a combined instrument, an engine electric control unit, an indicator lamp and an oil supply system, wherein the oil gas detection sensor is arranged in the automobile engine room and connected with the central controller; the combined instrument and the engine electric control unit are connected with the central controller respectively; the combined instrument is connected with the indicator lamp; and the engine electric control unit is connected with the oil supply system. By increasing the oil gas detection sensor in the automobile engine room, the device can monitor the concentration of the oil gas in the engine room in real time, control the concentration through the central controller, take corresponding control for the detected oil gas concentration situation, prompt a driver when the concentration of the oil gas of the automobile engine room is over high, directly cut off the oil supply system when the concentration of the oil gas is greater than a set value and eliminate the hidden danger of self-combustion of the vehicle; and the technology greatly improves the safety performance of the vehicle.
Description
Technical field
The utility model relates to a kind of motor vehicle fuel control setup, relates in particular to a kind of device that detects control for automobile cabin oil gas.
Background technology
Along with the progress of society, the raising of living standards of the people, the popularity rate of automobile is more and more higher, but along with automobile quantity is increased sharply, the vehicle failure situation also grows with each passing day, thereby people also more and more pay close attention to for the safety performance of automobile.In these failure conditions that automobile occurs, the self-burning of vehicle phenomenon is of common occurrence, and the serious consequence that the vehicle spontaneous combustion is brought also allows people can't help to have a lingering fear.Dieseling is studied carefully the leakage that its major cause still comes from vehicle fuel oil and fuel-steam, just has very big probability to cause spontaneous combustion the oil gas that leaks out reaches finite concentration in the automobile cabin after.
Open day is on December 31st, 2008, publication number is that neat regenerative apparatus of a kind of vehicle-mounted gasoline of CN101332769 and recovery method disclose such technical scheme: carbon canister is communicated with driving engine through electromagnetic valve, be communicated with the outlet of oil separator through breather pipe, the outlet of oil separator is communicated with through the outlet of breather pipe with the vent line check valve, the import of vent line check valve is communicated with breather pipe and fuel tank successively, fuel filler pipe puts in the fuel tank, arrival end at following fuel filler pipe is installed an one way stop peturn valve, control cock is connected with breather pipe and is fixed in the fuel tank, to be fixed in the fuel tank behind the gradient valve connection breather pipe, be attempted by behind the triple valve serial connection blowdown valve on the pipeline between the breather pipe.This invention stops the interior gasoline vapor of fuel tank directly to airborne release, make gasoline vapor flow to carbon canister from control cock, gradient valve, get rid of the SELF CL that the flow of steam is realized nozzle by reducing fuel tank step by step, reduce the oiling discharging, avoid fuel leakage and realize the recovery of oil gas and utilize again.Though this scheme can reduce exhaust of oil, avoid fuel leakage, the situation that can only avoid fuel oil to leak to a certain extent if fuel leakage takes place, can not be made the control corresponding operation, and the leakage situation is handled it, and still has potential safety hazard.
The utility model content
The utility model provides a kind of automobile cabin oil and gas detection control setup, by the oil and gas detection sensor is set in the automobile cabin gas concentration in the cabin is detected, and send central controller to compare analysis the testing result, thereby take corresponding measure to give navigating mate caution or cut-out fuel-feed system pull up circuit at actual conditions, effectively prevent because the gas concentration that fuel leakage or evaporation cause is crossed problems such as height, and then avoid caused therefrom self-burning of vehicle phenomenon.
At the problems referred to above, the utility model is taked following technical scheme:
Be provided with the oil and gas detection sensor in the automobile cabin, the oil and gas detection sensor links to each other with central controller, and combination instrument, engine electric-controlled unit are connected with central controller respectively, and combination instrument links to each other with indicator lamp, and engine electric-controlled unit links to each other with fuel charger.The oil and gas detection sensor plays the effect that detects gas concentration in the cabin, detected result sends into central controller, central controller is judged for the gas concentration that test obtains, judge the degree whether this result exceeds standard and exceed standard, and then central controller sends corresponding instruction, and the instruction of taking can be divided three classes: F/s does not exceed standard thereby do not operate; Gas concentration has just exceeded standard thereby has sent the instruction unpack indicator lamp in the subordinate phase cabin, gives navigating mate with prompting; Gas concentration has surpassed maximum set value in the phase III cabin.
The technical solution of the utility model can be further perfect;
As optimization, be provided with preposition comparator in the central controller, the in-phase end of preposition comparator is connected with preposition comparative voltage circuit, the end of oppisite phase of preposition comparator links to each other with the oil and gas detection sensor, the mouth of preposition comparator links to each other respectively with the end of oppisite phase of rearmounted comparator, combination instrument, the in-phase end of rearmounted comparator links to each other with rearmounted comparative voltage circuit, and the mouth of rearmounted comparator links to each other with engine electric-controlled unit.The input voltage of the in-phase end of preposition comparator also just defines the maximum set value of gas concentration in the cabin, when the input voltage of the end of oppisite phase of preposition comparator during less than the input voltage of its in-phase end, comparator is exported a high level, thereby give combination instrument with the work indication, only light indicator lamp, when the input voltage of the end of oppisite phase of preposition comparator during greater than the input voltage of its in-phase end, preposition comparator output low level, rearmounted comparator is then exported a high level, make engine electric-controlled unit send and stop the oil fuel feed pump power supply and then driving engine is quit work, solve the hidden danger of spontaneous combustion.
As optimization, the input voltage of rearmounted comparator input terminal is less than the voltage of the high level of preposition comparator output terminal output.The definite assurance of this voltage swing relation makes accurate judgment to gas concentration.
As optimization, the oil and gas detection sensor is provided with filter screen.The filter screen that is provided with on the sensor can reduce oil gas adhering on sensor, thereby avoids adhering to the too much influence to transducer sensitivity of greasy dirt.
Automobile of the present utility model cabin oil gas monitor controller, in terms of existing technologies: it is by increasing the oil and gas detection sensor in the automobile cabin, can monitor the gas concentration in the cabin in real time, control by central controller, take control corresponding at detected gas concentration situation, prompting navigating mate when automobile cabin gas concentration is higher, then directly cut off fuel-feed system during greater than maximum set value at its gas concentration, eliminate the hidden danger of vehicle spontaneous combustion, this technology has improved the safety performance of vehicle well.
Description of drawings
Fig. 1 is a kind of structural representation of automobile of the present utility model cabin oil and gas detection control setup.
Wherein: 1, filter screen; 2, oil and gas detection sensor; 3, central controller; 31, preposition comparative voltage circuit; 32, preposition comparator; 33, rearmounted comparative voltage circuit; 34, rearmounted comparator; 4, combination instrument; 5, engine electric-controlled unit; 6, indicator lamp; 7, fuel-feed system.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
The utility model is provided with oil and gas detection sensor 2 in the automobile cabin, oil and gas detection sensor 2 is in order to detect the gas concentration in the automobile cabin, this sensor is provided with one deck filter screen 1, in order to the influence for transducer sensitivity of the greasy dirt that reduces to adsorb, this sensor is sent into central controller 3 to back generation one level signal of gas concentration.
Be provided with a preposition comparator 32 in the central controller 3, the in-phase end of preposition comparator 32 is connected with a preposition comparative voltage circuit 31, preposition comparative voltage circuit 31 outputs one burning voltage, the level signal that the oil gas monitoring sensor returns is imported the end of oppisite phase of preposition comparator 32, thereby preposition comparator 32 is according to the input voltage of its in-phase end and end of oppisite phase make comparisons decision output high level or low level.Be divided into two-way from the voltage of preposition comparator 32 mouths output, one tunnel combination instrument 4 that is sent to thereafter wherein, the end of oppisite phase of rearmounted comparator 34 is sent on another road, the in-phase end of rearmounted comparator 34 links to each other with a rearmounted comparative voltage circuit 33, and this postposition comparative voltage circuit 33 is sent into the voltage of the high level that the voltage of the in-phase end of rearmounted comparator 34 exports less than preposition comparator 32 mouths.Thereby rearmounted comparator 34 is made comparisons according to the input voltage of its in-phase end and end of oppisite phase and is determined output high level or low level, and this output voltage is sent into the electrical generator ECU (Electrical Control Unit).
Indicator lamp 6 in combination instrument 4 and the automobile case on the gauge panel links to each other the situation that exceeds standard of these indicator lamp 6 display automobile cabin gas concentrations.Engine electric-controlled unit 5 is controlled by the output voltage of its front end central controller 3, if receive high level signal, then sends instruction control fuel-feed system 7, cuts off fuel-feed system 7, and electrical generator is quit work, and stops spontaneous combustion hidden danger.
When automobile was worked, the oil gas sensor was monitored the gas concentration in the automobile cabin in real time, when gas concentration is very low, has response range during the oil gas sensor, this is that the oil gas sensor can return signal, thereby also just can not produce induced voltage, the automobile normal operation.Along with gas concentration further raises, the induced voltage that the oil gas sensor produces increases, this voltage signal is sent into the end of oppisite phase of the preposition comparator 32 in the central controller 3, compare with the input voltage of preposition comparator 32 in-phase ends at this voltage signal, if the voltage signal intensity that sensor produces is less than the input voltage of comparator in-phase end, then preposition comparator 32 outputs one high level signal, the high level signal of output is sent into combination instrument 4 thereafter, combination instrument 4 is lighted indicator lamp 6 after receiving this high level signal, thereby give navigating mate with prompting, show that gas concentration in the automobile cabin situation of exceeding standard occurs and should be handled as early as possible.If the gas concentration in the automobile cabin has reached quite high concentration, the voltage signal intensity that sensor produces is greater than the input voltage of the in-phase end of preposition comparator 32, export a low level signal from the input end of preposition comparator 32 so, this low level signal is sent into the end of oppisite phase of rearmounted comparator 34, this low level signal is less than the input voltage of the in-phase end of rearmounted comparator 34, so export a high level signal from the mouth of rearmounted comparator 34, after the high level signal that produces is sent into engine electric-controlled unit 5, engine electric-controlled unit 5 sends instruction, cut off fuel-feed system 7, the work of shutting engine down, the hidden danger of elimination vehicle spontaneous combustion.
The technical scheme of this utility model can effectively prevent owing to the too high situation of gas concentration that fuel leakage or fuel oil evaporation caused, and then avoids the generation of this situation of vehicle spontaneous combustion.
Claims (4)
1. automobile cabin oil and gas detection control setup, it is characterized in that, it comprises oil and gas detection sensor (2), central controller (3), combination instrument (4), engine electric-controlled unit (5), indicator lamp (6) and fuel-feed system (7), oil and gas detection sensor (2) is arranged in the automobile cabin, oil and gas detection sensor (2) links to each other with central controller (3), combination instrument (4), engine electric-controlled unit (5) is connected with described central controller (3) respectively, described combination instrument (4) links to each other with indicator lamp (6), and engine electric-controlled unit (5) links to each other with fuel-feed system (7).
2. a kind of automobile according to claim 1 cabin oil and gas detection control setup, it is characterized in that, be provided with preposition comparator (31) in the described central controller, the in-phase end of described preposition comparator (31) is connected with preposition comparator circuit (32), the end of oppisite phase of preposition comparator (31) links to each other with oil and gas detection sensor (2), the end of oppisite phase of the mouth of preposition comparator (31) and rearmounted comparator (33), combination instrument (4) links to each other respectively, the in-phase end of rearmounted comparator (33) links to each other with rearmounted comparator circuit (34), and the mouth of rearmounted comparator (33) links to each other with engine electric-controlled unit (5).
3. require 2 described a kind of automobile cabin oil and gas detection control setups according to claim, it is characterized in that, the input voltage of rearmounted comparator (33) input end is less than the voltage of the high level of preposition comparator (31) mouth output.
4. a kind of automobile according to claim 1 and 2 cabin oil and gas detection control setup is characterized in that described oil and gas detection sensor (2) is provided with filter screen (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201700713U CN201646373U (en) | 2010-04-26 | 2010-04-26 | Device for detecting and controlling oil gas of automobile engine room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201700713U CN201646373U (en) | 2010-04-26 | 2010-04-26 | Device for detecting and controlling oil gas of automobile engine room |
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| Publication Number | Publication Date |
|---|---|
| CN201646373U true CN201646373U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201700713U Expired - Fee Related CN201646373U (en) | 2010-04-26 | 2010-04-26 | Device for detecting and controlling oil gas of automobile engine room |
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| CN (1) | CN201646373U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253140A (en) * | 2012-12-31 | 2013-08-21 | 湖南吉利汽车部件有限公司 | Device capable of preventing spontaneous combustion of vehicles |
| CN110281862A (en) * | 2019-05-23 | 2019-09-27 | 东风柳州汽车有限公司 | Fuel combustion vehicle and electric vehicle fire behavior monitoring early-warning system |
| CN110420532A (en) * | 2019-07-19 | 2019-11-08 | 中国船舶重工集团公司第七一九研究所 | A kind of bleeder recirculating oil air purifying apparatus and method for watercraft engine room |
-
2010
- 2010-04-26 CN CN2010201700713U patent/CN201646373U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103253140A (en) * | 2012-12-31 | 2013-08-21 | 湖南吉利汽车部件有限公司 | Device capable of preventing spontaneous combustion of vehicles |
| CN110281862A (en) * | 2019-05-23 | 2019-09-27 | 东风柳州汽车有限公司 | Fuel combustion vehicle and electric vehicle fire behavior monitoring early-warning system |
| CN110420532A (en) * | 2019-07-19 | 2019-11-08 | 中国船舶重工集团公司第七一九研究所 | A kind of bleeder recirculating oil air purifying apparatus and method for watercraft engine room |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20170426 |
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| CF01 | Termination of patent right due to non-payment of annual fee |