CN104401248A - Vehicle wading warning and protecting system and control method thereof - Google Patents
Vehicle wading warning and protecting system and control method thereof Download PDFInfo
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- CN104401248A CN104401248A CN201410559829.5A CN201410559829A CN104401248A CN 104401248 A CN104401248 A CN 104401248A CN 201410559829 A CN201410559829 A CN 201410559829A CN 104401248 A CN104401248 A CN 104401248A
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Abstract
The invention relates to a vehicle wading warning and protecting system and a control method thereof. The system comprises an engine ECU (Electronic Control Unit), a vehicle ignition control module, a vehicle oil injection control module, at least two groups of water level sensors, a micro ECU, a micro power supply, an air inlet passage choke valve device and at least two water level warning lamps, wherein the vehicle ignition control module and the vehicle oil injection control module are connected with the engine ECU; the water level sensors are arranged on a vehicle body from bottom to top according to warning levels from low to high; the position of each water level sensor at the highest warning level is lower than that of an air inlet of an air filter of a vehicle; the signal output ends of the water level sensors at the highest warning level are connected with the engine ECU; the signal acquisition end of the micro ECU is connected with the signal output ends of the at least two groups of water level sensors; the instruction output end of the micro ECU is connected with the air inlet passage choke valve device and the water level warning lamps; the micro power supply is connected with the power supply end of the micro ECU; the air inlet passage choke valve device is arranged on an air inlet passage of the vehicle and is used for controlling opening and closing of the air inlet passage; the number of the water level warning lamps is the same with the group number of the water level sensors. According to the vehicle wading warning and protecting system and the control method, a water depth can be effectively prompted to a driver, and an engine and electrical appliances of the whole vehicle are effectively protected from being damaged.
Description
" technical field "
The present invention relates to sensing and field of intelligent control technology, be specifically related to the warning of a kind of automobile wading and protection system and control method thereof.
" background technology "
Along with the quick increase of automobile quantity in recent years, there is traffic accident quantity and also significantly rise.Wherein, automobile wading, fall into rivers or also increase gradually by the automobile water logging case such as flood inundation on tracks, especially coastal province of harassing by Heavy Rain of Typhoon, every year due to the city waterlogging that heavy rain causes, brings the cases such as a lot of automobile wading, water logging.
Automobile can sink because the gravity of self is greater than buoyancy car load gradually when water logging, water can from car ventilation mouth and other inflow compartment, gap communicated with the external world simultaneously, and the vehicle window of closing and car door almost cannot be opened under the effect of the outer hydraulic pressure of car, thus passenger cannot escape from rapidly and stranded.At present, at home periodical is delivered and describe security protection system after a kind of automobile water logging, the problem that this system mainly solves and radical function have: 1.ECU (Electronic Control Unit, electronic control unit, also known as car running computer) judge the conclusion of automobile water logging after to vehicle window or skylight electric device send drive singal make vehicle window or skylight with than usual faster speed open; 2. design provides the airbag of buoyancy, after ECU judges the conclusion of automobile water logging, send instruction, makes solid matter generation chemical reaction produce gas, and being charged into rapidly the airbag be arranged on roof increases the buoyancy of automobile in water, slows down the speed that automobile sinks; 3. in car, set up oxygen bottle device, breathe air enough after automobile water logging is provided.Generally speaking, this system just can have the more time allow passenger inside the vehicle's safe escape vehicle after automobile water logging, and better protects passenger inside the vehicle; But almost do not have the protection of vehicle.
During automobile wading, when the depth of water reaches engine air inlet tube admission port, engine operation can suck a large amount of aqueous water and enter cylinder, aqueous water can not be compressed, make engine off, have very Great inertia because crankshaft high-speed rotates, can cause the major failures such as cylinder wall is pulled, Remedy for Piston Damage, connecting rod bending, driving engine basic need scraps process.As can be seen here, except personal safety, during automobile water logging, car load computer particularly automotive theft proof system all can damage because of water logging; If start the engine, driving engine and auto electrical appliance can be caused to damage.
" summary of the invention "
The present invention aims to provide the warning of a kind of automobile wading and protection system and control method thereof; when automobile wading, can effectively point out the chaufeur depth of water, or when after water inflow of the engine; chaufeur cannot restart engine motor, thus available protecting driving engine and auto electrical appliance are not damaged.Object of the present invention is realized by following technical scheme:
A kind of automobile wading warning and protection system, comprise Engine ECU and the Automobile Igniting Control module that is connected with Engine ECU and automobile Injection Control module; It is characterized in that, also comprise: at least two group water level detectors, by alert level from low to high, be arranged at from low to high on auto body; The position that the water level detector of the highest alert level is arranged lower than the airfilter admission port position of automobile, its signal output part connecting engine ECU; Miniature ECU, the signal output part of at least two group water level detectors described in its acquisition of signal end connects, the instruction output end of miniature ECU connects inlet channel choke and water level caution lamp; Micro power, is connected with the feeder ear of miniature ECU; Inlet channel choke, is arranged on the inlet channel of automobile, controls the keying of inlet channel; At least two water level caution lamps, quantity is identical with the group number of water level detector.
As further technical scheme, the warning of above-mentioned automobile wading also comprises exploder with protection system, is connected to battery negative post and forges iron on circuit, this exploder ignition end connect described miniature ECU.
As concrete technical scheme, the group number of described water level detector is three groups, and first group of water level detector is arranged at vehicle body lower position, for sensing comparatively low water; Second group of water level detector is arranged at the vehicle body position slightly high relative to first group of water level detector, for sensing slightly high water level; 3rd group of water level detector is arranged at the position of vehicle body relative to second group slightly high, lower than automotive air intake pipe position, for the highest safe water level of sensing.
As concrete technical scheme, described water level detector of often organizing comprises two, left and right, being specifically arranged as of each water level detector: about first group two water level detectors are installed on inside front bumper near the lower edge left and right sides; On the left of in the of 3rd group, water level detector is installed on airfilter admission port position, and right side water level detector is installed on inside right flank daughter board; About second group two water level detectors are installed on inside left and right daughter board.
As concrete technical scheme, described water level detector is provided with preventing water drops guard shield.
As concrete technical scheme, described inlet channel choke comprises strangler valve, strangler valve Controlling solenoid valve, wind-proof door control device, strangler valve is installed in the middle of inlet channel, strangler valve Controlling solenoid valve is electrically connected with miniature ECU, for receiving miniature ECU signal, control wind-proof door control device works, and wind-proof door control device controls the keying of the strangler valve in the middle of inlet channel.
Above-mentioned automobile wading warning and a control method for protection system, comprise the following steps:
(1) alert level of described at least two group water level detectors and at least two water level caution lamps are recorded in miniature ECU by the arrangement information of alert level;
(2) miniature ECU judges whether other water level detectors of non-highest level sense water level signal, be then, miniature ECU controls other of non-highest level water level caution lamp is corresponding to light, otherwise does not respond;
(3) miniature ECU and Engine ECU judge whether other water level detectors of highest level sense water level signal simultaneously, that the water level caution lamp that miniature ECU controls highest level lights, Engine ECU control Automobile Igniting Control module and automobile Injection Control module make driving engine stop working immediately simultaneously, otherwise return step (2).
As concrete technical scheme, said method also comprises: on battery negative post forges iron circuit, connect exploder, by this exploder ignition end connect described miniature ECU, when miniature ECU judges that other water level detectors of highest level sense water level signal, also control exploder and blow up battery negative post.
As concrete technical scheme, the group number of described water level detector is three groups, and first group of water level detector is arranged at vehicle body lower position, for sensing comparatively low water; Second group of water level detector is arranged at the vehicle body position slightly high relative to first group of water level detector, for sensing slightly high water level; 3rd group of water level detector is arranged at the position of vehicle body relative to second group slightly high, lower than automotive air intake pipe position, for the highest safe water level of sensing.
As concrete technical scheme, described water level detector of often organizing comprises two, left and right, described miniature ECU and Engine ECU judge water level detector whether sense water level signal be about often organizing two sensors all sense water level signal and be as the criterion.
Invention major advantage of the present invention is embodied in: 1. by the water level caution lamp lamp of different stage, and chaufeur can know the grasp automobile wading degree of depth, for vehicle is by taking correct operation, simultaneously as the warning of personal safety; . when fordable depth is too high, start function to stop working immediately, and due to negative pole forge iron circuit disconnect, effectively can prevent chaufeur maloperation start the engine, bring the heavy damage to driving engine; Also Engine ECU and auto electrical appliance element can be protected.
" accompanying drawing explanation "
The formation block diagram of the automobile wading warning that Fig. 1 provides for the embodiment of the present invention and protection system.
" detailed description of the invention "
As shown in Figure 1; the automobile wading warning that the present embodiment provides and protection system; except comprising, automobile is original to be comprised except Engine ECU, Automobile Igniting Control module and automobile Injection Control module, also comprises: three groups of water level detectors, micro power, miniature ECU, inlet channel choke, exploder and three water level caution lamps.
Often organize water level detector and comprise two, left and right, be distributed in vehicle body both sides.Three groups of water level detectors are arranged at sensed positions of paddling different on vehicle body, sense the water level of different depth from shallow to deep.First group of water level detector is arranged at vehicle body lower position, for sensing comparatively low water; Second group of water level detector is arranged at the position of vehicle body relative to first group slightly high, for sensing slightly high water level; 3rd group of water level detector is arranged at the position of vehicle body relative to second group slightly high, lower than automotive air intake pipe position, for the highest safe water level of sensing.Level sensor implement body is arranged as: a left side 1 is identical with right 1 setting height(from bottom), being installed on close lower edge inside front bumper, being positioned at vehicle body lower position, for sensing comparatively low water; Left 3 are installed on airfilter admission port position, and right 3 are installed on inside left 3 mutually level right flank daughter boards; A left side 2 is identical with right 2 setting height(from bottom)s, and the middle between left 1 and left 3, is arranged on inside left and right daughter board respectively.Six water level detectors are all electrically connected with miniature ECU, and the water level information of corresponding collection is inputed to miniature ECU.
Miniature ECU, micro power are all installed on below facia board, miniature ECU is used for receiving and process water level detector signal, and sends instruction corresponding actr (comprising inlet channel choke, exploder and three Warning lights) is worked; Micro power is direct current 12V power supply, for providing power supply for miniature ECU.
Three water level caution lamps are respectively blue Warning light, Amber Alerts lamp, red Warning light, are all electrically connected with miniature ECU.Blue Warning light, Amber Alerts lamp, red Warning light are respectively used to the sensing signal of response first group, second group, the 3rd group water level detector, and for showing alert level from low to high, the depth of water of carrying out different depth is reported to the police.
Inlet channel choke comprises strangler valve, strangler valve Controlling solenoid valve, wind-proof door control device, strangler valve is installed in the middle of inlet channel, strangler valve Controlling solenoid valve is electrically connected with miniature ECU, for receiving miniature ECU signal, make wind-proof door control device work, strangler valve in the middle of inlet channel is closed, enters engine cylinder to prevent liquid water stream.
Exploder is installed in the middle of automotive battery minus earth circuit, receives the guiding detonating controlling signal of miniature ECU, and exploder is ignited and disconnected battery negative post bonding circuit by force.
Shown in Figure 1, above-mentioned automobile wading warning is described as follows with the water-level alarm control principle and method analysis of protection system:
When running car is when paddling road surface, the depth of water degree of depth reaches water level detector 1, and signal transmission is sent instruction to miniature ECU, miniature ECU by sensor makes installation blue alarm lamp on the dash panel light, the degree of depth of paddling to remind chaufeur.When fordable depth reaches water level detector 2, miniature ECU sends instruction and blueness and yellow indicator lamp is lighted simultaneously, reminds chaufeur care should be used to drive, sails out of region of paddling as early as possible.When fordable depth reaches air filter admission port, Engine ECU receives water level detector 3 signal, controls engine ignition and oil spout module, driving engine is stopped working immediately; Meanwhile, miniature ECU receives the signal of water level detector 3, will send execution instruction and make instrument carrier panel red light being lit to instrument alarm lamp, reminds chaufeur flame-out immediately and vehicle is pushed away region of paddling.Meanwhile, when fordable depth exceedes water level detector 3, miniature ECU receives water level signal and controls air inlet pipe choke immediately, and the strangler valve in the middle of air inlet pipe is closed rapidly, stops water to suck engine cylinder, to protect driving engine.
In addition; when fordable depth exceedes water level detector 3, miniature ECU receive water level signal immediately control linkage to forge iron in battery negative post the exploder work of circuit, disconnect battery negative post by force; prevent chaufeur start the engine again, protection Engine ECU and car load electric elements.
Prevent ECU from judging measure by accident: many times, owing to raining, carwash or the water wave travelled of paddling, easily " because of carelessness " this just requires that fender guard and ECU have judgement accurately to single sensing to ECU transmission water logging signal.Major measure has: 1) structurally, each sensor is placed in (see photo) in a protective cover, protective case has a lot of aperture, facing attachment is designed with in aperture, this structure can prevent the water splashed from entering protective case, but the water of water logging can enter, effectively reduce the erroneous judgement of ECU; 2) when designing the program of ECU controller, what should read to sensing is " current " signal, instead of simple " having water " signal.The judgment basis of miniature ECU is that the mutually level water level detector in left and right sends signal simultaneously.
Radical function of the present invention has: 1. when automobile wading travels, can the automatic monitoring depth of water, reminds chaufeur to take correct operation to sail out of region of paddling, or should stop working rapidly when the depth of water reaches admission port automobile is pushed away region of paddling; 2. in air inlet pipe, set up valve, this valve is controlled by the miniature ECU installed additional separately, and when air inlet pipe is intake, miniature ECU by-pass valve control is closed, and stops aqueous water to enter engine cylinder; 3., when air inlet pipe is intake, Engine ECU makes driving engine stop working immediately; 4., when the automobile wading degree of depth reaches air inlet pipe, miniature ECU sends the igniter work that instruction makes to be connected to battery negative post bonding circuit, blows up battery earth cable road, to protect engine computer and car load electrical equipment.
Above embodiment is only fully open and unrestricted the present invention, based on the present invention innovate purport, without the replacement of the equivalence techniques feature of creative work, the scope that the application discloses should be belonged to.
Claims (10)
1. automobile wading warning and a protection system, comprises Engine ECU and the Automobile Igniting Control module that is connected with Engine ECU and automobile Injection Control module; It is characterized in that, also comprise: at least two group water level detectors, by alert level from low to high, be arranged at from low to high on auto body; The position that the water level detector of the highest alert level is arranged lower than the airfilter admission port position of automobile, its signal output part connecting engine ECU; Miniature ECU, the signal output part of at least two group water level detectors described in its acquisition of signal end connects, the instruction output end of miniature ECU connects inlet channel choke and water level caution lamp; Micro power, is connected with the feeder ear of miniature ECU; Inlet channel choke, is arranged on the inlet channel of automobile, controls the keying of inlet channel; At least two water level caution lamps, quantity is identical with the group number of water level detector.
2. automobile wading according to claim 1 warning and protection system, is characterized in that, also comprise exploder, be connected to battery negative post and forge iron on circuit, this exploder ignition end connect described miniature ECU.
3. automobile wading warning according to claim 1 and 2 and protection system, it is characterized in that, the group number of described water level detector is three groups, and first group of water level detector is arranged at vehicle body lower position, for sensing comparatively low water; Second group of water level detector is arranged at the vehicle body position slightly high relative to first group of water level detector, for sensing slightly high water level; 3rd group of water level detector is arranged at the position of vehicle body relative to second group slightly high, lower than automotive air intake pipe position, for the highest safe water level of sensing.
4. automobile wading warning according to claim 3 and protection system, it is characterized in that, described water level detector of often organizing comprises two, left and right, being specifically arranged as of each water level detector: about first group two water level detectors are installed on inside front bumper near the lower edge left and right sides; On the left of in the of 3rd group, water level detector is installed on airfilter admission port position, and right side water level detector is installed on inside right flank daughter board; About second group two water level detectors are installed on inside left and right daughter board.
5. automobile wading warning according to claim 4 and protection system, it is characterized in that, described water level detector is provided with preventing water drops guard shield.
6. automobile wading warning according to claim 1 and protection system; it is characterized in that; described inlet channel choke comprises strangler valve, strangler valve Controlling solenoid valve, wind-proof door control device; strangler valve is installed in the middle of inlet channel; strangler valve Controlling solenoid valve is electrically connected with miniature ECU; for receiving miniature ECU signal, control wind-proof door control device work, wind-proof door control device controls the keying of the strangler valve in the middle of inlet channel.
7. automobile wading warning described in claim 1 and a control method for protection system, comprises the following steps:
(1) alert level of described at least two group water level detectors and at least two water level caution lamps are recorded in miniature ECU by the arrangement information of alert level;
(2) miniature ECU judges whether other water level detectors of non-highest level sense water level signal, be then, miniature ECU controls other of non-highest level water level caution lamp is corresponding to light, otherwise does not respond;
(3) miniature ECU and Engine ECU judge whether other water level detectors of highest level sense water level signal simultaneously, that the water level caution lamp that miniature ECU controls highest level lights, Engine ECU control Automobile Igniting Control module and automobile Injection Control module make driving engine stop working immediately simultaneously, otherwise return step (2).
8. control method according to claim 7, it is characterized in that, also comprise: on battery negative post forges iron circuit, connect exploder, by this exploder ignition end connect described miniature ECU, when miniature ECU judges that other water level detectors of highest level sense water level signal, also control exploder and blow up battery negative post.
9. control method according to claim 7, is characterized in that, the group number of described water level detector is three groups, and first group of water level detector is arranged at vehicle body lower position, for sensing comparatively low water; Second group of water level detector is arranged at the vehicle body position slightly high relative to first group of water level detector, for sensing slightly high water level; 3rd group of water level detector is arranged at the position of vehicle body relative to second group slightly high, lower than automotive air intake pipe position, for the highest safe water level of sensing.
10. the control method according to claim 7,8 or 9, it is characterized in that, described water level detector of often organizing comprises two, left and right, described miniature ECU and Engine ECU judge water level detector whether sense water level signal be about often organizing two sensors all sense water level signal and be as the criterion.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104713613A (en) * | 2015-04-11 | 2015-06-17 | 济南超舜中药科技有限公司 | Water level recognition method for vehicle-exterior water level monitoring and skylight opening device |
| CN105253060A (en) * | 2015-11-06 | 2016-01-20 | 南京理工大学 | Vehicle-mounted fording depth detection and early warning apparatus |
| CN105329165A (en) * | 2015-09-16 | 2016-02-17 | 重庆长安汽车股份有限公司 | Vehicle fording depth warning device |
| CN106184094A (en) * | 2016-09-21 | 2016-12-07 | 西安培华学院 | The self-help apparatus of a kind of motor-vehicle wading and method |
| CN106401760A (en) * | 2016-08-31 | 2017-02-15 | 北京小米移动软件有限公司 | Engine control method and device and vehicle |
| CN107539259A (en) * | 2017-09-12 | 2018-01-05 | 北京汽车研究总院有限公司 | A kind of grid control device and automobile |
| CN111634187A (en) * | 2020-05-18 | 2020-09-08 | 广汽本田汽车有限公司 | Wading protection device for vehicle |
| CN112373299A (en) * | 2020-10-16 | 2021-02-19 | 东风汽车集团有限公司 | Vehicle wading detection device and using method thereof |
| US10928239B1 (en) | 2019-10-08 | 2021-02-23 | Ford Global Technologies, Llc | Wheel depth water capacitive fender molding |
| CN113232563A (en) * | 2021-05-25 | 2021-08-10 | 重庆长安汽车股份有限公司 | Vehicle-mounted wading rescue system |
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| CN107757470A (en) * | 2017-09-25 | 2018-03-06 | 南京律智诚专利技术开发有限公司 | A kind of automobile wading warning system based on ultrasonic wave |
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| CN111634187A (en) * | 2020-05-18 | 2020-09-08 | 广汽本田汽车有限公司 | Wading protection device for vehicle |
| CN112373299A (en) * | 2020-10-16 | 2021-02-19 | 东风汽车集团有限公司 | Vehicle wading detection device and using method thereof |
| CN113232563A (en) * | 2021-05-25 | 2021-08-10 | 重庆长安汽车股份有限公司 | Vehicle-mounted wading rescue system |
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