CN105501116A - Method and system for detecting leakage of fuel tanks of automobiles - Google Patents

Method and system for detecting leakage of fuel tanks of automobiles Download PDF

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Publication number
CN105501116A
CN105501116A CN201610051306.9A CN201610051306A CN105501116A CN 105501116 A CN105501116 A CN 105501116A CN 201610051306 A CN201610051306 A CN 201610051306A CN 105501116 A CN105501116 A CN 105501116A
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CN
China
Prior art keywords
fuel
variable quantity
vehicle
resistance value
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610051306.9A
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Chinese (zh)
Inventor
唐君君
孙则强
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FAW Volkswagen Automotive Co Ltd
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FAW Volkswagen Automotive Co Ltd
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Filing date
Publication date
Application filed by FAW Volkswagen Automotive Co Ltd filed Critical FAW Volkswagen Automotive Co Ltd
Priority to CN201610051306.9A priority Critical patent/CN105501116A/en
Publication of CN105501116A publication Critical patent/CN105501116A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q9/00Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03Fuel tanks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03Fuel tanks
    • B60K2015/03328Arrangements or special measures related to fuel tanks or fuel handling
    • B60K2015/03375Arrangements or special measures related to fuel tanks or fuel handling to improve security

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The invention discloses a method and a system for detecting leakage of fuel tanks of automobiles. The method and the system have the advantages that relations between variation of fuel in the fuel tanks of the automobiles and fuel consumption of engines in identical time periods are compared to one another, whether the fuel in the fuel tanks of the automobiles is normally consumed along running of the engines or not is judged, the fuel tanks of the automobiles leak if the variation of the fuel in the fuel tanks of the automobiles exceeds the fuel consumption of the engines, reminding information can be outputted at the moment, users can be reminded of leakage of the fuel tanks of the automobiles, accordingly, the users can timely take effective measures, and potential safety hazards due to leakage of the fuel tanks of the automobiles can be prevented.

Description

The method of inspection that a kind of fuel tank of vehicle leaks and system
Technical field
The present invention relates to technical field of vehicle safety, in particular, relate to method of inspection and the system of a kind of fuel tank of vehicle leakage.
Background technology
At present, automotive fuel oil system is opened loop control, and the most naked leakage of fuel tank of vehicle is under chassis, and not protection.Fuel oil alarm function be only the fuel oil in fuel tank of vehicle reach warning oil level time carry out alarm, although this function can be pointed out user to arrive petrol service station in time and refuel, but when fuel tank of vehicle leaks, but cannot and alarm, need wait until that fuel leakage just can be reported to the police, during this period, if user does not discover to during warning oil level, then exist because continuing to travel and the potential safety hazard that occurs, such as self-burning of vehicle, fuel tank of vehicle explode even personal casualty etc.
To sum up how realizing the detection that fuel tank of vehicle leaks is those skilled in the art's technical matterss urgently to be resolved hurrily.
Summary of the invention
In view of this, the invention provides method of inspection and the system of a kind of fuel tank of vehicle leakage, to realize the detection of leaking fuel tank of vehicle.
The method of inspection that fuel tank of vehicle leaks, comprising:
Obtain the resistance value of fuel charger, described resistance value is obtained by the levitation height of described fuel charger according to oil float;
Calculate in preset time period, the resistance value variable quantity of described fuel charger;
In the resistance value variable quantity and described fuel tank of vehicle of pre-stored fuel oil variable quantity corresponding relation, find the fuel oil variable quantity that described resistance value variable quantity is corresponding;
Calculate in described preset time period, the fuel consumption of driving engine;
Judge whether described fuel oil variable quantity exceedes described fuel consumption;
If so, then export information, described information is leaked for pointing out user's fuel tank of vehicle.
Preferably, describedly judge whether described fuel oil variable quantity exceedes described fuel consumption and comprise:
Calculate the difference of described fuel oil variable quantity and described fuel consumption;
Judge whether described difference exceedes preset range value.
Preferably, also comprise:
Described information is shown at instrument display.
Preferably, described information is information of voice prompt.
The checking system that fuel tank of vehicle leaks, comprising:
Acquiring unit, for obtaining the resistance value of fuel charger, described resistance value is obtained by the levitation height of described fuel charger according to oil float;
First calculating unit, for calculating in preset time period, the resistance value variable quantity of described fuel charger;
Search unit, in the corresponding relation from fuel oil variable quantity in the resistance value variable quantity and described fuel tank of vehicle of pre-stored, find the fuel oil variable quantity that described resistance value variable quantity is corresponding;
Second calculating unit, for calculating in described preset time period, the fuel consumption of driving engine;
Judging unit, for judging whether described fuel oil variable quantity exceedes described fuel consumption;
Output unit, for when described judging unit is judged as YES, export information, described information is leaked for pointing out user's fuel tank of vehicle.
Preferably, described judging unit comprises:
Computation subunit, for calculating the difference of described fuel oil variable quantity and described fuel consumption;
Judgment sub-unit, for judging whether described difference exceedes preset range value.
Preferably, also comprise:
Display unit, for showing described information at instrument display.
Preferably, described information is information of voice prompt.
As can be seen from above-mentioned technical scheme, the invention provides method of inspection and the system of the leakage of a kind of fuel tank of vehicle, by comparing in same time section, the magnitude relationship of the fuel consumption of fuel oil variable quantity and driving engine in fuel tank of vehicle, judge that whether amount of fuel in fuel tank of vehicle is the normal consumption along with engine running, when in fuel tank of vehicle, fuel oil variable quantity exceedes the fuel consumption of driving engine, show that leaking appears in fuel tank of vehicle, now information can be exported, prompting user fuel tank of vehicle leaks, to make user adopt an effective measure in time, avoid the potential safety hazard occurred because fuel tank of vehicle leaks.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 method of inspection diagram of circuit that a kind of fuel tank of vehicle leaks disclosed in the embodiment of the present invention;
The structural representation of Fig. 2 checking system that a kind of fuel tank of vehicle leaks disclosed in the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the invention discloses method of inspection and the system of the leakage of a kind of fuel tank of vehicle, to realize the detection of leaking fuel tank of vehicle.
See Fig. 1, the method for inspection diagram of circuit that a kind of fuel tank of vehicle that the embodiment of the present invention provides leaks, this method of inspection is applied to ECU (ElectronicControlUnit, electronic control unit), and method of inspection comprises step:
The resistance value of step S11, acquisition fuel charger;
Wherein, described resistance value is obtained by the levitation height of described fuel charger according to oil float.
Oil float in fuel charger is immersed in fuel oil, and under the buoyancy of fuel liquid, can float, levitation height is corresponding with the resistance value of fuel charger.
Step S12, calculate in preset time period, the resistance value variable quantity of described fuel charger;
The concrete numerical basis actual needs of preset time period and determining, the present invention does not limit at this.
Step S13, from the corresponding relation of fuel oil variable quantity in the resistance value variable quantity and described fuel tank of vehicle of pre-stored, find the fuel oil variable quantity that described resistance value variable quantity is corresponding;
Wherein, the corresponding relation of change in resistance amount and fuel oil variable quantity obtains according to practical experience and experiment.
Step S14, calculate in described preset time period, the fuel consumption of driving engine;
It should be noted that, in actual applications, ECU controls injection pressure and the injection time of engine fuel injector, and therefore, ECU can calculate the fuel consumption of driving engine in preset time period.
Step S15, judge whether described fuel oil variable quantity exceedes described fuel consumption, if so, then perform step S16;
It should be noted that, fuel oil variable quantity exceedes fuel consumption and specifically refers to fuel oil variable quantity and exceed the maxim of fuel consumption in error allowed band.
Step S16, output information, described information is leaked for pointing out user's fuel tank of vehicle.
In summary it can be seen, the method of inspection that fuel tank of vehicle provided by the invention leaks, by comparing in same time section, the magnitude relationship of the fuel consumption of fuel oil variable quantity and driving engine in fuel tank of vehicle, judge that whether amount of fuel in fuel tank of vehicle is the normal consumption along with engine running, when in fuel tank of vehicle, fuel oil variable quantity exceedes the fuel consumption of driving engine, show that leaking appears in fuel tank of vehicle, now information can be exported, prompting user fuel tank of vehicle leaks, to make user adopt an effective measure in time, avoid the potential safety hazard occurred because fuel tank of vehicle leaks.
Further, can only know the fuel consumption of driving engine compared to existing technology, the present invention can also know fuel oil variable quantity in fuel tank of vehicle, and therefore, the present invention can realize the closed loop control used fuel oil.
Finally, in method of inspection provided by the invention, hardware used is all the hardware that existing vehicle has possessed, drops into and vehicle refitting, have cost low, the advantage that safety is high without the need to additional hardware.
Be understandable that, when fuel oil variable quantity does not exceed fuel consumption, show that leaking does not appear in fuel tank of vehicle.
For optimizing above-described embodiment further, step S15 specifically comprises:
Step S151, calculate the difference of described fuel oil variable quantity and described fuel consumption;
Step S152, judge whether described difference exceedes preset range value.
Wherein, preset range value refers to the error allowed band value that fuel oil variable quantity differs with fuel consumption.
For optimizing above-described embodiment further, also comprise step:
Step S17, show described information at instrument display.
Wherein, information can lamp form of dodging show at instrument display, and certain information also can show in other forms, and the present invention does not limit at this.
Preferably, information also can be information of voice prompt.
Corresponding with said method embodiment, present invention also offers the checking system that a kind of fuel tank of vehicle leaks.
See Fig. 2, the structural representation of the checking system that a kind of fuel tank of vehicle that the embodiment of the present invention provides leaks, this checking system is applied to ECU, and checking system comprises:
Acquiring unit 21, for obtaining the resistance value of fuel charger, described resistance value is obtained by the levitation height of described fuel charger according to oil float;
Oil float in fuel charger is immersed in fuel oil, and under the buoyancy of fuel liquid, can float, levitation height is corresponding with the resistance value of fuel charger.
First calculating unit 22, for calculating in preset time period, the resistance value variable quantity of described fuel charger;
The concrete numerical basis actual needs of preset time period and determining, the present invention does not limit at this.
Search unit 23, in the corresponding relation from fuel oil variable quantity in the resistance value variable quantity and described fuel tank of vehicle of pre-stored, find the fuel oil variable quantity that described resistance value variable quantity is corresponding;
Wherein, the corresponding relation of change in resistance amount and fuel oil variable quantity obtains according to practical experience and experiment.
Second calculating unit 24, for calculating in described preset time period, the fuel consumption of driving engine;
It should be noted that, in actual applications, ECU controls injection pressure and the injection time of engine fuel injector, and therefore, ECU can calculate the fuel consumption of driving engine in preset time period.
Judging unit 25, for judging whether described fuel oil variable quantity exceedes described fuel consumption, if so, then performs output unit 26;
It should be noted that, fuel oil variable quantity exceedes fuel consumption and specifically refers to fuel oil variable quantity and exceed the maxim of fuel consumption in error allowed band.
Output unit 26, for when judging unit 25 is judged as YES, export information, described information is leaked for pointing out user's fuel tank of vehicle.
In summary it can be seen, the method of inspection that fuel tank of vehicle provided by the invention leaks, by comparing in same time section, the magnitude relationship of the fuel consumption of fuel oil variable quantity and driving engine in fuel tank of vehicle, judge that whether amount of fuel in fuel tank of vehicle is the normal consumption along with engine running, when in fuel tank of vehicle, fuel oil variable quantity exceedes the fuel consumption of driving engine, show that leaking appears in fuel tank of vehicle, now information can be exported, prompting user fuel tank of vehicle leaks, to make user adopt an effective measure in time, avoid the potential safety hazard occurred because fuel tank of vehicle leaks.
Further, can only know the fuel consumption of driving engine compared to existing technology, the present invention can also know fuel oil variable quantity in fuel tank of vehicle, and therefore, the present invention can realize the closed loop control used fuel oil.
Finally, in method of inspection provided by the invention, hardware used is all the hardware that existing vehicle has possessed, drops into and vehicle refitting, have cost low, the advantage that safety is high without the need to additional hardware.
Be understandable that, when fuel oil variable quantity does not exceed fuel consumption, show that leaking does not appear in fuel tank of vehicle.
For optimizing above-described embodiment further, judging unit 25 comprises:
Computation subunit 251, for calculating the difference of described fuel oil variable quantity and described fuel consumption;
Judgment sub-unit 252, for judging whether described difference exceedes preset range value.
Wherein, preset range value refers to the error allowed band value that fuel oil variable quantity differs with fuel consumption.
For optimizing above-described embodiment further, also comprise:
Display unit, for showing described information at instrument display.
Wherein, information can lamp form of dodging show at instrument display, and certain information also can show in other forms, and the present invention does not limit at this.
Preferably, information also can be information of voice prompt.
It should be noted that, in system embodiment, the principle of work of each component part specifically refers to embodiment of the method corresponding part, repeats no more herein.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
In this specification sheets, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (8)

1. a method of inspection for fuel tank of vehicle leakage, is characterized in that, comprising:
Obtain the resistance value of fuel charger, described resistance value is obtained by the levitation height of described fuel charger according to oil float;
Calculate in preset time period, the resistance value variable quantity of described fuel charger;
In the resistance value variable quantity and described fuel tank of vehicle of pre-stored fuel oil variable quantity corresponding relation, find the fuel oil variable quantity that described resistance value variable quantity is corresponding;
Calculate in described preset time period, the fuel consumption of driving engine;
Judge whether described fuel oil variable quantity exceedes described fuel consumption;
If so, then export information, described information is leaked for pointing out user's fuel tank of vehicle.
2. method of inspection according to claim 1, is characterized in that, describedly judges whether described fuel oil variable quantity exceedes described fuel consumption and comprise:
Calculate the difference of described fuel oil variable quantity and described fuel consumption;
Judge whether described difference exceedes preset range value.
3. method of inspection according to claim 1, is characterized in that, also comprises:
Described information is shown at instrument display.
4. method of inspection according to claim 1, is characterized in that, described information is information of voice prompt.
5. a checking system for fuel tank of vehicle leakage, is characterized in that, comprising:
Acquiring unit, for obtaining the resistance value of fuel charger, described resistance value is obtained by the levitation height of described fuel charger according to oil float;
First calculating unit, for calculating in preset time period, the resistance value variable quantity of described fuel charger;
Search unit, in the corresponding relation from fuel oil variable quantity in the resistance value variable quantity and described fuel tank of vehicle of pre-stored, find the fuel oil variable quantity that described resistance value variable quantity is corresponding;
Second calculating unit, for calculating in described preset time period, the fuel consumption of driving engine;
Judging unit, for judging whether described fuel oil variable quantity exceedes described fuel consumption;
Output unit, for when described judging unit is judged as YES, export information, described information is leaked for pointing out user's fuel tank of vehicle.
6. checking system according to claim 5, is characterized in that, described judging unit comprises:
Computation subunit, for calculating the difference of described fuel oil variable quantity and described fuel consumption;
Judgment sub-unit, for judging whether described difference exceedes preset range value.
7. checking system according to claim 5, is characterized in that, also comprises:
Display unit, for showing described information at instrument display.
8. checking system according to claim 5, is characterized in that, described information is information of voice prompt.
CN201610051306.9A 2016-01-26 2016-01-26 Method and system for detecting leakage of fuel tanks of automobiles Pending CN105501116A (en)

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CN106840546A (en) * 2017-03-30 2017-06-13 中国航空工业集团公司西安飞机设计研究所 A kind of aircraft fuel oil leak detection system and method
CN110542520A (en) * 2019-09-29 2019-12-06 潍柴动力股份有限公司 engine liquid leakage monitoring method and system
CN111660961A (en) * 2020-06-22 2020-09-15 浙江吉利新能源商用车集团有限公司 Vehicle fuel consumption calculation method and vehicle
CN112985717A (en) * 2021-02-24 2021-06-18 四川金恒液压有限公司 Fuel leakage detection system and detection method
CN113738508A (en) * 2021-08-31 2021-12-03 东风商用车有限公司 Method, device and equipment for monitoring abnormal oil consumption and readable storage medium

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CN111660961A (en) * 2020-06-22 2020-09-15 浙江吉利新能源商用车集团有限公司 Vehicle fuel consumption calculation method and vehicle
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CN112985717B (en) * 2021-02-24 2024-01-05 四川金恒液压有限公司 Fuel leakage detection system and detection method
CN113738508A (en) * 2021-08-31 2021-12-03 东风商用车有限公司 Method, device and equipment for monitoring abnormal oil consumption and readable storage medium

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Application publication date: 20160420