CN100590343C - Gas fuel system for motor vehicle - Google Patents
Gas fuel system for motor vehicle Download PDFInfo
- Publication number
- CN100590343C CN100590343C CN200510072451A CN200510072451A CN100590343C CN 100590343 C CN100590343 C CN 100590343C CN 200510072451 A CN200510072451 A CN 200510072451A CN 200510072451 A CN200510072451 A CN 200510072451A CN 100590343 C CN100590343 C CN 100590343C
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- storage box
- fuel
- gas
- pressure
- controller
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Abstract
A gas fuel system for motor vehicles includes a gas fuel storage box and a correlative pressure transducer for monitoring the pressurization gas in the storage box. A parameter driver is used for monitoring the completeness of the storage box by tracking filling circulation of the pressure in the storage box. If the filling circulation is over the preset times or the other system completeness monitoring indication needs to be regulated, the regulating action can be adopted.
Description
Technical field
The gaseous fuel storage and the transmission system that the present invention relates in motor vehicle, use.
Background technique
The gaseous fuel storage and the supply system of motor vehicle propose unique challenges to the motor vehicle artificer, compare because in contrast to the relevant modest pressure of treatment fluid fuel (as gasoline and diesel oil), such fuel system need be handled gas under high relatively pressure.In addition, some pressurized gas as hydrogen and rock gas has proposed other challenge, because so by contrast gas has buoyancy, and the steam that is produced by liquid hydrocarbon fuel usually lacks buoyancy.In addition and the vapor phase ratio that produces of liquid hydrocarbon fuel, hydrogen not only has buoyancy, and tasteless and have a littler molecular dimension.These all characteristics all make compressed fuel gas be difficult to storage more.
Bring the complexity of a series of increases during the needs of store compressed gas and motor vehicle safety require to handle to the design relevant with motor vehicle under high relatively pressure, because such gaseous fuel storage box must have than the much higher intensity of liquid oil storage tank to adapt to much higher pressure.Moreover simultaneously allow vehicle-mounted storage box to be filled into their maximum safety and available (performance constraint) capacity to guarantee to keep enough safe clearances the working life that must monitor container under this pressure, expects with the design of satisfying vehicle travel.
Compressed gas storage case supervisory system is used valving usually, and it is not enough that this device often is partial to filling, the result, and the available energy density of such storage box system usually can not be satisfactory, and this has tangible counter productive to vehicle travel.
System and method of the present invention allows the compressed gas storage case is carried out maximum may annotating, and monitors the working life of storage box simultaneously, is effectively kept to allow the storage box integrity.
Summary of the invention
The gas fuel system of motor vehicle comprises the gaseous fuel storage box and is used to monitor the sensor of the pressure and temperature that is included in the gas in the storage box.Pressure transducer produces the gas pressure signal corresponding to storage box pressure.ECU (Electrical Control Unit) (after this being called controller) receiver gases pressure signal and other sensor signals, and according to a built-in algorithm predefined, that design for the usable range that at utmost uses fuel system, initiate to regulate action, and satisfy every other designing requirement.In first example, controller writes down each filling circulation, and wherein the pressure in the gas pressure signal indication storage box is increased to value or the reading that surpasses second threshold value under first threshold value.If the filling cycle-index of record surpasses predetermined loop number, then controller begins to regulate.Adjusting can comprise the pressure that the restriction storage box may be annotated and be reached, or restriction can enter the amount of the compressed fuel gas of storage box.If the temperature of the gas of pressure, the storage of the gas of storage, or the temperature of fuel storage box surpasses predetermined threshold, and then controller can be initiated other and be regulated action, as stopping to the storage box fueling.Therefore, as used in this, term " adjusting " refers to limit the amount of the fuel in the gaseous fuel storage box or the pressure of the fuel in the storage box, or during fueling, after the fueling, or the pressure of the fuel in the storage box when stopping fueling, and correspondingly,, then limit the amount of the fuel in the storage box if the operating parameter of one or more appointments surpasses predetermined threshold.
According to another aspect of the present invention, controller is determined the amount of the fuel in the storage box at least as the function of the temperature and pressure that is stored in the gas in this storage box.This information can be used in regulates in the action, or can be used by another controller in the motor vehicle directly or indirectly, with the fuel quantity ga(u)ge of powered vehicle.
Gas fuel system of the present invention also comprises and being connected with fuel storage box and by the fill valve of controller function, and the Transmission gear sensor that also is connected with controller, controller prevents that fuel system from annotating like this, unless the speed changer of Transmission gear sensor indication vehicle is in the " STOP " shelves.This fuel system also comprise some with controller function on the fuel gas sensor of the escape that is connected, if make that controller will be closed fill valve when the fuel gas of escaping takes place to leak during fueling.
This fuel system also comprises the fuel transmission line line that extends to prime mover from storage box.The fuel transmission line comprises the fuel pressure sensor that is connected with controller.Controller is followed the trail of the pressure in the transmission line not from storage box extraction fuel the time, and monitors the integrity of fuel transmission line and related valves in this way.
The fill valve of fuel storage box can have the variable inlet by controller function, so that control fuel enters the speed of storage box.
The communication line that is built in the controller helps the filling of storage box to reach its maximum available, with currency that at least one fuel adding parameter is provided to fuel adder.This parameter can be, for example, and the pressure maximum that the fuel storage box filling reaches, or put into the biggest quality of the fuel of fuel storage box.
According to another aspect of the present invention, the prime mover that is installed in the motor vehicle with this fuel system can comprise a whirler and relevant speed changer at least.Whirler can be a reciprocating internal combustion engine, or produces the motor of power by the fuel cell that the gaseous fuel that uses fuel storage box is operated, or the whirler of those skilled in the art's other type known and as suggested in the present invention.
Above-mentioned fill valve can be equipped with the situation that detects the charging point nozzle and send the sensor of fueling signal to controller, if the fueling signal, then controller prevents that vehicle from moving.
According to another aspect of the present invention, a kind of method that is used to monitor the operational condition of gaseous fuel storage system and relevant prime mover comprises that the example that is increased to second threshold value from first threshold value by the gas pressure that writes down in each storage box monitors the step of the filling circuit quantity of gaseous fuel storage box, and by monitoring the step of integrity that extends to the fuel transmission line of prime mover from storage box when storage box is extracted fuel out, not following the trail of pressure in the transmission line.At last, this method comprises that if annotate circuit quantity a predetermined level is exceeded perhaps the pressure in the fuel transmission line of Zhui Zonging reduces to surpass the predetermined maximum speed of speed that allows, and then begins to regulate.
According to another aspect of the present invention, the controller that is connected on a kind of and a plurality of sensor functions, comprise parameter driven program, this program uses the output of the pressure transducer relevant with the gaseous fuel storage box as the input data at least, monitors the operational condition of fuel storage box.
An advantage of system and method for the present invention is that the vehicle of in addition compressed fuel gas can effectively allow stroke to operate with maximum, monitors the integrity of storage box and relevant fuel transmission line simultaneously.
Another advantage of the present invention is that native system can be handled hydrogen and compressed natural gas, changes when have minimum hardware when a kind of fuel switches to another kind of fuel.
Another advantage of the present invention is that system of the present invention helps with automatically controlled or the automatic control filling station equipment compressed gas storage case of annotating.
Other advantages of the present invention, characteristic and target are conspicuous to the reader of this specification.
Description of drawings
Fig. 1 is the perspective view of vehicle chassis according to an aspect of the present invention;
Fig. 2 is the plan view of the vehicle chassis of Fig. 1, shows other aspects of the present invention; And
Fig. 3 is the skeleton diagram of the each several part of displaying vehicle fuel system of the present invention and dynamical system.
Embodiment
As shown in Figure 1, vehicle 10 comprises compressed fuel storage box 14, and it can preserve rock gas, hydrogen, or some other compressed fuel gas.By fuel transmission line 30 fuel is offered prime mover 12.As mentioned above, prime mover 12 can comprise fuel cell or internal-combustion engine, or the compressed fuel gas of those skilled in the art's other types that are used in prime mover known or as suggested in the present invention.
Fig. 2 shows the other details of vehicle of the present invention and fuel system.Prime mover of first type comprises motor 16, and it is connected with speed changer 24 with traction motor 22 by radiator 18 and circulating fan 19 coolings.Motor 16 receives fuel by fuel transmission line 30 from storage box 14.By between fuel transmission line 30 and the fuel storage box 14 and the fuel valve 20 between fuel transmission line 30 and the motor 16 control flowing via the fuel of fuel transmission line 30.Though what show among Fig. 2 is motor 16, those skilled in the art will recognize in view of the present invention, can substitute motor 16 with the fuel cell by rock gas, hydrogen or other inflammable gas work.Such details is given those hope and is put into practice people of the present invention.
Some sensors that are used in vehicle 10 are for multiple purpose.Fuel storage box pressure transducer 32 is measured the pressure of the fuel in the storage box 14.The fuel gas sensor 46 of some escapes is positioned at rear portion, the fuel storage box 14 residing compartments of vehicle 10, and in the engine compartment and compartment of vehicle 10.What fuel gas sensor 46 provided relevant gas incident of escaping inputs to controller 42, and this will discuss in conjunction with Fig. 3.
Fig. 3 shows the relation between vehicle control device 42 and some vehicle components, these parts comprise several general purpose transducers 26, they are corresponding to sensor shown in Figure 2 and other sensor, include but are not limited to sensor and other system temperatures and the pressure transducer of the temperature of measuring fuel storage box 14.
Controller 42 by it with storage box pressure transducer 32 between be connected the pressure of monitoring continuously in the fuel storage box 14.No matter when the gas pressure in the storage box 14 under first threshold value of the stress level when using up in the storage box 14, be increased to corresponding to storage box 14 by the filling value, as second threshold value of 4000psi (pound/square inch) or other predetermined values, controller 42 all writes down its detected each that takes place and annotates and circulate.Because each filling circulation all can make storage box bear possible harmful stress, all the such filling circulations of controller 42 records, make and reaching the circulation time of predetermined quantity, limit filling according to the pressure maximum that reaches or greatest amount of fuel that allow to inject storage box, up to authentication again or change storage box to storage box.
Controller 42 also prevents to move and other unexpected activities at the unexpected vehicle of appearance during fuel storage box 14 fuelings.Therefore, one of sensor 26 comprises the Transmission gear sensor.If gear position sensor indication speed changer 24 is not in the " STOP " position, then controller 42 will prevent that fill valve 38 from opening.
When fill valve 38 was indicated to vehicle 10 fuelings, controller 42 prevented that motor 16 from starting.In order to realize this effect, fill valve 38 is equipped with from those skilled in the art knows the sensor of choosing several sensors, with the appearance of the charging point nozzle (showing) determining to comprise in automatically controlled fuel adder 48 or manual fuel adder.In this way, if vehicle just at fueling, then controller 42 prevents that vehicle from moving, and equally during fueling, occurs if the fuel gas sensor 46 of escaping senses gas, then controller 42 also will be closed fuel adding valve 38, thereby prevent fueling.Fuel valve 20 also will be maintained in its closed position, and start to avoid motor 16.
During some other pattern when vehicle is in " STOP " pattern or prime mover 12 not in consume fuel, controller 42 is also monitored the situation of fuel transmission line 30, it is by closing fuel valve shown in Figure 2 20, and the pressure in the fuel transmission line 30 of monitoring and following the trail of by fuel transmission line pressure transducer 36 carries out.
Fig. 3 displaying is built in communication line 44 in the controller 42, that communicate by letter with fuel adder 48 or manual fuel adder formation.Communication line 44 can use being electrically connected of those skilled in the art's know and type as suggested in the present invention, radio frequency line, infrared rays, optical fiber, magnetic, or the ultrasonic communication system.Under any circumstance, communication line 44 is all by allowing charging point 48 or manual charging point fuel storage box 14 to be realized the filling of maximum possible to automatic control fuel adder 48 at least one fuel adding parameter of suggestion, preferably, such parameter can be the pressure maximum that storage box 14 is reached by filling.This will allow native system to be avoided, in traditional pressurized gas loading system, run into frequently, owing to consider the integrity of vehicle-mounted storage box and the pressure of will annotating intentionally remains on a kind of situation of very conservative level.Because controller 42 is monitored the integrity of storage box and transmission line system by other security-related aspects of monitoring filling circuit quantity and fueling process, be accompanied by vehicle travel and increase and to realize higher filling pressure.
According to another aspect of the present invention, a kind of driving parameter program or method that is used to monitor the operational condition of gaseous fuel storage system and relevant prime mover comprises the step of using controller 42 and storage box pressure transducer 32 monitoring filling circuit quantity, and monitors the step of the integrity that extends in the fuel transmission line 30 between storage box 14 and prime mover 12 by following the trail of pressure in the transmission line 30 when not extracting fuel out from storage box 14.This method also is included under the situation of filling loop number a predetermined level is exceeded, or the pressure in the fuel transmission line of following the trail of 30 begins to regulate with under the further situation that surpasses the speed reduction of being scheduled to maximum permission speed.As mentioned above, adjusting can comprise the follow-up filling that limits storage box, or fuel limitation is drained into the fuel transmission line 30 from storage box 12.
Native system provides the advantage of monitoring the operational condition of fuel storage box with the parameter driven program of operational condition, can at utmost use the active volume of storage box, keep storage box simultaneously and extended to the integrity of the fuel transmission line between prime mover of vehicle from storage box.
Though the present invention is illustrated in conjunction with particular implementation form of the present invention, should be understood that those skilled in the art can make various modifications, change and the reorganization that does not depart from the spirit and scope of setting forth in the claim of the present invention.
Claims (22)
1. the gas fuel system of motor vehicle is characterized in that, described gas fuel system comprises:
The gaseous fuel storage box;
Pressure transducer is for monitoring is included in the pressure of the gas in the described storage box and produces gas pressure signal corresponding to described pressure;
Controller, for receiving described gas pressure signal and writing down each filling circulation, wherein said pressure signal indicates the pressure in the described storage box to be increased to certain value on second threshold value under first threshold value, if the filling loop number of record surpasses predetermined loop number, then described controller begins to regulate.
2. gas fuel system as claimed in claim 1 is characterized in that, described adjusting comprises the pressure that the restriction storage box may be annotated and be reached.
3. gas fuel system as claimed in claim 1 is characterized in that, described adjusting comprises that restriction can be entered the amount of the compressed fuel of storage box.
4. gas fuel system as claimed in claim 1 is characterized in that, if the temperature of the gas of pressure, the storage of the gas of storage, and in the temperature of described fuel storage box at least one surpass predetermined threshold, then described controller begins to regulate.
5. gas fuel system as claimed in claim 1 is characterized in that, described controller is determined the amount of the fuel in the storage box as the function of the temperature and pressure at least that is stored in the gas in this storage box.
6. gas fuel system as claimed in claim 1, it is characterized in that, also comprise the fill valve that is connected with described fuel storage box and described controller, described controller is also connected to the Transmission gear sensor, make the described controller described fuel system that prevents to annotate, unless described transmission sensors indication transmission for vehicles is in park.
7. gas fuel system as claimed in claim 1, it is characterized in that, also comprise the fill valve that is connected with described fuel storage box and described controller, described controller is also connected to the fuel gas sensor of a plurality of escapes, if at least one described sensor detects the appearance of the fuel gas of escape during fueling, then described controller is closed described fill valve.
8. gas fuel system as claimed in claim 1, it is characterized in that, also comprise the fuel transmission line that extends to prime mover from described storage box, described transmission line has the fuel pressure sensor that is connected with described controller, and described controller is followed the trail of the pressure in the described transmission line when not extracting fuel out from described storage box.
9. gas fuel system as claimed in claim 1 is characterized in that, also comprises the variable inlet fill valve that has by described controller function.
10. gas fuel system as claimed in claim 1 is characterized in that, also comprises being built in described controller, being used for advising communicating to connect of at least one fuel adding parameter to automatically controlled fuel adder.
11. gas fuel system as claimed in claim 10 is characterized in that, described controller and the described pressure maximum that is reached by filling about described storage box to described automatically controlled fuel adder suggestion that communicates to connect.
12. motor vehicle is characterized in that, described motor vehicle comprise:
The gaseous fuel storage box of holding amount of compressed gas;
The prime mover that comprises at least one whirler and associated transmissions, from described fuel storage box to described prime mover supply gas fuel;
For monitoring is included in the pressure of the gas in the described storage box and produces pressure transducer corresponding to the gas pressure signal of described pressure; And
Receive described gas pressure signal and write down each filling circuit controller, wherein said pressure signal indicates the described pressure in the described storage box to be increased to a value on second threshold value under first threshold value, if the filling loop number of record surpasses predetermined loop number, then described controller begins to regulate.
13. motor vehicle as claimed in claim 12, it is characterized in that, also comprise the fill valve that is connected with described fuel storage box, described fill valve has the appearance that detects priming jet and sends the sensor of fueling signal to described controller, if described fueling signal, then described controller prevents that described motor vehicle from moving.
14. motor vehicle as claimed in claim 12 is characterized in that, described prime mover comprises reciprocating internal combustion engine and relevant speed changer.
15. motor vehicle as claimed in claim 12 is characterized in that, described prime mover comprises fuel cell, motor, and relevant speed changer.
16. motor vehicle as claimed in claim 12 is characterized in that, described pressurized gas comprises rock gas.
17. motor vehicle as claimed in claim 12 is characterized in that, described pressurized gas comprises hydrogen.
18. a method of monitoring the operational condition of gaseous fuel storage system and relevant prime mover is characterized in that described method comprises step:
By writing down the example that gas pressure in each storage box is increased to second certain value on the threshold value under first threshold value, the filling circuit quantity of monitoring gaseous fuel storage box;
By at the pressure of when described storage box is extracted fuel out, not following the trail of in the described transmission line, monitor the integrity that extends to the fuel transmission line of described prime mover from described storage box; And
If filling circuit quantity a predetermined level is exceeded, or the pressure in the described fuel transmission line of tracking then begins to regulate to surpass the speed reduction that predetermined maximum allows speed.
19. method as claimed in claim 18 is characterized in that, described adjusting comprises if surpass described filling circuit predetermined quantity, then limits the step of the maximum filling pressure of described storage box.
20. method as claimed in claim 18 is characterized in that, described adjusting comprises if the pressure of described tracking reduces to surpass the described predetermined maximum speed of speed that allows, then limits gas enters described fuel transmission line from described storage box step.
21. the gas fuel system of motor vehicle is characterized in that, described gas fuel system comprises:
The gaseous fuel storage box;
A plurality of sensors are the value of a plurality of operating parameters of determining described gas fuel system, and described sensor comprises the pressure transducer of determining the gas pressure in the described storage box at least; And
With the controller that is connected on described a plurality of sensor functions, described controller comprises parameter driven program, and the output of using described pressure transducer is at least monitored the operational condition of described fuel storage box as the input data,
Described controller is monitored the working life of described storage box by writing down each filling circulation, and the output of wherein said pressure transducer indicates the pressure in the described storage box to be increased to second threshold value from first threshold value.
22. gas fuel system as claimed in claim 21 is characterized in that, if the filling loop number of record surpasses predetermined loop number, then described controller begins to regulate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510072451A CN100590343C (en) | 2005-05-13 | 2005-05-13 | Gas fuel system for motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510072451A CN100590343C (en) | 2005-05-13 | 2005-05-13 | Gas fuel system for motor vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1862073A CN1862073A (en) | 2006-11-15 |
| CN100590343C true CN100590343C (en) | 2010-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510072451A Expired - Fee Related CN100590343C (en) | 2005-05-13 | 2005-05-13 | Gas fuel system for motor vehicle |
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| CN (1) | CN100590343C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7950303B2 (en) * | 2007-10-24 | 2011-05-31 | Ford Global Technologies, Llc | Transmission temperature sensing and control |
| DE112008004184T5 (en) * | 2008-12-11 | 2012-07-12 | Toyota Jidosha K.K. | Gas filling system, gas-powered vehicle and gas station |
| JP5489752B2 (en) * | 2010-01-29 | 2014-05-14 | トヨタ自動車株式会社 | Gas filling system and vehicle |
| US9528472B2 (en) * | 2013-04-19 | 2016-12-27 | Ford Global Technologies, Llc | Enhanced fuel injection based on choke flow rate |
| DE102015218235A1 (en) * | 2015-09-23 | 2017-03-23 | Bayerische Motoren Werke Aktiengesellschaft | Service device for a pressure vessel system |
| KR101745272B1 (en) * | 2016-07-27 | 2017-06-08 | 현대자동차주식회사 | System for filling lpg of lpg vehicle using auxiliary bombe |
-
2005
- 2005-05-13 CN CN200510072451A patent/CN100590343C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1862073A (en) | 2006-11-15 |
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Granted publication date: 20100217 Termination date: 20180513 |
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