CN108859718B - A kind of vehicle energy-saving system and its control method with twin-engined groups of double fuel tanks- - Google Patents
A kind of vehicle energy-saving system and its control method with twin-engined groups of double fuel tanks- Download PDFInfo
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- CN108859718B CN108859718B CN201810489822.9A CN201810489822A CN108859718B CN 108859718 B CN108859718 B CN 108859718B CN 201810489822 A CN201810489822 A CN 201810489822A CN 108859718 B CN108859718 B CN 108859718B
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- engine
- compression ratio
- small reduction
- reduction ratio
- big compression
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- 239000000446 fuel Substances 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims description 11
- 230000006835 compression Effects 0.000 claims abstract description 66
- 238000007906 compression Methods 0.000 claims abstract description 66
- 239000002828 fuel tank Substances 0.000 claims abstract description 31
- 239000000295 fuel oil Substances 0.000 claims abstract description 24
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000007423 decrease Effects 0.000 claims description 6
- 230000008450 motivation Effects 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 description 8
- 239000003502 gasoline Substances 0.000 description 5
- 239000000284 extract Substances 0.000 description 4
- 150000001335 aliphatic alkanes Chemical class 0.000 description 3
- 238000005474 detonation Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT 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
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/08—Arrangement or mounting of internal-combustion or jet-propulsion units comprising more than one engine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D25/00—Controlling two or more co-operating engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The invention discloses a kind of vehicle energy-saving system with twin-engined groups of double fuel tanks-, including fuel tank, twin-engined groups and two gearboxes, the fuel tank includes the fuel tank one for holding high-octane rating fuel oil and the fuel tank two for holding low octane rating fuel oil, described twin-engined groups include one big compression ratio engine group and a small reduction ratio cluster engine, and described two gearboxes are gearbox one and gearbox two；The big compression ratio engine group provides high-octane rating fuel oil by fuel tank one for it, small reduction ratio cluster engine provides low octane rating fuel oil by fuel tank two for it, the big compression ratio engine group is connect by clutch with gearbox one, and small reduction ratio cluster engine is connect by clutch with gearbox two.The present invention can provide the solution better than conventional truck burning under the friction speed state of vehicle driving, improve fuel utilization ratio, achieve the purpose that energy-saving and emission-reduction, protection environment well.
Description
Technical field
The present invention relates to automobile technical fields, and in particular to a kind of automobile energy-saving system with twin-engined groups of double fuel tanks-
System and its control method.
Background technique
When vehicle is in different operating conditions, has different travel speeds, engine speed, temperature, the pressure of combustion chamber
The physical quantitys such as strong differ greatly: as when vehicle is under idling or moderate rotation, the mean temperature of combustion chamber is about 1000 to take the photograph
Family name's degree, and at high speed, the maximum temperature of combustion chamber can reach 2500 degrees Celsius.Orthodox car often according to vehicle driving when
Condition the most extreme determines the design of cluster engine and the octane number label of gasoline.Under extreme conditions, burning room temperature
Degree is high, if selecting the gasoline of low octane rating, big compression ratio engine is easy detonation, and small reduction ratio engine cannot be exported and be wanted
The big power asked, therefore big compression ratio engine group and high-knock rating gasoline can only be used.But if vehicle is not in high speed
Under the extreme condition of traveling, the temperature of combustion chamber is lower, and engine is not easy detonation, if the Gaoxin for also selecting anti-knock properties good at this time
Alkane value gasoline can also be slow because of burning other than waste of energy, and heat dissipation increases, and leads to a series of problems, such as being short of power.So
In the combustion process of combustion chamber, close to detonation but non-detonating burning is that efficiency is highest.
Industrially once had using the idea of the engine of variable compression ratio on automobile, but it is tired to implement comparison
It is difficult.
Summary of the invention
Conventional engines consider that cylinder compression ratio is all that maximum travel speed being likely to be breached with vehicle etc. is made in design
For foundation, but in daily life, so big compression ratio, such as the family that a F-Zero is 200km/h are often taken less than
With car, most velocity intervals on ordinary days may namely 50-70km/h, in this case, there is no complete for gasoline
It is utilized entirely.
In order to solve the problems, such as that conventional truck burning is insufficient, waste fuel oil, the present invention provides one kind to have double fuel tanks-
Twin-engined groups of vehicle energy-saving system, so that the vehicle using the design can be provided better than conventional truck in the process of moving
Combustion scheme, thus achieve the purpose that energy-saving and emission-reduction, protection environment.The present invention also provides a kind of controls of above-mentioned energy conserving system
Method processed.
Term is explained:
ECU:Electronic Control Unit electronic control unit, also known as " car running computer ", " vehicle-mounted computer ".
The present invention overcomes the technical solution used by its technical problem to be:
A kind of vehicle energy-saving system with twin-engined groups of double fuel tanks-, including fuel tank, twin-engined groups and two speed changes
Case, the fuel tank include the fuel tank one for holding high-octane rating fuel oil and the fuel tank two for holding low octane rating fuel oil, institute
Stating twin-engined groups includes one big compression ratio engine group and a small reduction ratio cluster engine, and described two gearboxes are to become
Fast case one and gearbox two；The big compression ratio engine group provides high-octane rating fuel oil, small reduction ratio hair by fuel tank one for it
Motivation group provides low octane rating fuel oil by fuel tank two for it, and the big compression ratio engine group is connected by clutch and gearbox one
It connects, small reduction ratio cluster engine is connect by clutch with gearbox two.
Currently preferred, the big compression ratio engine group is set to rear axle center position, small reduction ratio starts
Unit is set to front axle center position, or, the big compression ratio engine group is set to front axle center position, small pressure
Compression ratio engine group is set to rear axle center position.
The control method of the present invention also provides a kind of vehicle energy-saving system with twin-engined groups of double fuel tanks-, including
Following steps:
S1, starting vehicle, starting traveling, when vehicle is in " lower-speed state " when driving, ECU controls small reduction ratio engine
Group work, exports power required for vehicle driving, and big compression ratio engine group is idle at this time；
S2, speed rise, and when vehicle changes from " lower-speed state " to " middling speed state ", ECU control small reduction ratio starts
Unit works on a period of time, while big compression ratio engine group is started to work, when big compression ratio engine group is dynamic defeated
After out, small reduction ratio cluster engine tapers off work, and the output power of big compression ratio engine group continues to rise at the same time
Until the power that can satisfy current " middling speed state ", at this moment small reduction ratio cluster engine stops working completely；
S3, speed continue to rise, and when vehicle changes from " middling speed state " to " fast state ", ECU controls big compression ratio
Cluster engine starts output than the power bigger in " middling speed state ", at the same time small reduction ratio cluster engine also start to work with
Output power, until the power for meeting current " fast state ", the big compression ratio engine group of this process and small reduction ratio hair
Motivation group works at the same time；
S4, speed are begun to decline, and when vehicle changes from " fast state " to " middling speed state ", ECU controls small reduction ratio
Cluster engine is gradually reduced power output, while big compression ratio engine group continues to keep working condition, when small reduction ratio starts
After unit stops working completely, vehicle only is provided in the power output of " middling speed state " downward driving by big compression ratio engine group；
S5, speed continue to decline, and when vehicle changes from " middling speed state " to " lower-speed state ", ECU controls big compression ratio
Cluster engine is gradually reduced power output, while small reduction ratio cluster engine is started to work, when small reduction ratio cluster engine has
After power output, big compression ratio engine group stops working, and hereafter, only provides vehicle in " low speed shape by small reduction ratio cluster engine
The power output of state " downward driving.
Currently preferred, in the step S1, " lower-speed state " includes the state of idling traveling.
The beneficial effects of the present invention are:
The present invention can provide the solution better than conventional truck burning under the friction speed state of vehicle driving,
In the narrow sense, a grade variable compression ratio has been realized, fuel utilization ratio is improved, while also having taken into account the various driving status of vehicle,
It ensure that the power output under each state.The present invention can be good at achieving the purpose that energy-saving and emission-reduction, protection environment.
Detailed description of the invention
Fig. 1 is the schematic illustration of the embodiment of the present invention.
In figure, 1, fuel tank one, 2, fuel tank two, 3, big compression ratio engine group, 4, small reduction ratio cluster engine, 5, gearbox
One, 6, gearbox two, 7, semiaxis, 8, the near front wheel, 9, off-front wheel, 10, left rear wheel, 11, off hind wheel.
Specific embodiment
For a better understanding of the skilled in the art, being done in the following with reference to the drawings and specific embodiments to the present invention
It is further described, it is following to be merely exemplary that the scope of protection of the present invention is not limited.
In the embodiment of the present invention, involved " big compression ratio engine group " and " small reduction ratio cluster engine ", due to
The numerical value of different its engine compression ratio of vehicle might have difference, for general different vehicle, described in the embodiment of the present invention
" big " and " small " be for two pairs of cluster engine compression ratio sizes on same vehicle in comparison.Similarly, described " the low speed shape
State ", " middling speed state " and " fast state ", " low speed ", " middling speed " and " high speed " numerical value that it reaches due to different vehicle can also
Can be different, different vehicle has different speed height to divide, for general different vehicle, " low " described in the embodiment of the present invention,
" in " and "high" be also for the velocity magnitude on same vehicle in comparison.Similarly, about " high-octane rating fuel oil " and " low pungent
Alkane value fuel oil ", since the fuel oil that different vehicle needs inject may also be different, for general different vehicle, the present invention is implemented
The example "high" and the size of octane number " low " and for injection same interior fuel oil are in comparison.
Embodiment 1,
A kind of vehicle energy-saving system with twin-engined groups of double fuel tanks-described in the present embodiment is with automatic catch automobile
Example, including fuel tank, twin-engined groups and two gearboxes, as shown in Figure 1, the fuel tank includes for holding high-octane rating fuel oil
Fuel tank 1 and fuel tank 22 for holding low octane rating fuel oil, described twin-engined groups include a big compression ratio engine
Group 3 and a small reduction ratio cluster engine 4, described two gearboxes are gearbox 1 and gearbox 26；The big compression ratio
Cluster engine 3 provides high-octane rating fuel oil by fuel tank 1 for it, and small reduction ratio cluster engine 4 is provided by fuel tank 22 for it low pungent
Alkane value fuel oil, the big compression ratio engine group 3 connect output power with gearbox 1 by clutch and are driven by semiaxis 7
Motor car wheel, small reduction ratio cluster engine 4 connect output power with gearbox 26 by clutch and drive wheel by semiaxis 7,
Since two clutches are respectively arranged in gearbox one and gearbox two, therefore clutch does not identify in figure.It does not mark on the diagram
Also vehicle speed sensor, engine speed sensor and the ECU etc. known.
In the present invention, the big compression ratio engine group 3 can be set to rear axle center position, small reduction ratio hair
Motivation group 4 is set to front axle center position, alternatively, by big compression ratio engine group 3 be set to front axle center position,
Small reduction ratio cluster engine 4 is set to rear axle center position.As a kind of preferred scheme, the present embodiment is by big compression ratio
Cluster engine 3 is set to rear axle center position, small reduction ratio cluster engine 4 is set to front axle center position, such as Fig. 1
It is shown.
Embodiment 2,
A kind of control method of the vehicle energy-saving system with double twin-engined groups of fuel tanks-such as described in embodiment 1, such as
Shown in Fig. 1, include the following steps:
S1, starting vehicle, starting traveling, when vehicle is in " lower-speed state " when driving, " lower-speed state " also includes
The state of idling traveling, ECU control small reduction ratio cluster engine 4 and work, and at this moment small reduction ratio cluster engine 4 extracts fuel tank 22
In low octane rating fuel oil, complete " air inlet, compression, burning, exhaust ", export vehicle driving required for power simultaneously pass through semiaxis
7 driving the near front wheels 8 and off-front wheel 9 rotate, and big compression ratio engine group 3 is idle at this time；
S2, speed rise, and when vehicle changes from " lower-speed state " to " middling speed state ", ECU control small reduction ratio starts
Unit 4 works on a period of time, while big compression ratio engine group 3 is started to work, and extracts the high-octane rating combustion in fuel tank 1
Oil is completed " air inlet, compression, burning, exhaust ", and output power simultaneously drives left rear wheel 10 and off hind wheel 11 to rotate by semiaxis 7, when
Big compression ratio engine group 3 has small reduction ratio cluster engine 4 after certain power output to taper off work, at the same time big pressure
Until the output power of compression ratio engine group 3 continues to rise to the power that can satisfy current " middling speed state ", at this moment small compression
It stops working completely than cluster engine 4；
S3, speed continue to rise, and when vehicle changes from " middling speed state " to " fast state ", ECU controls big compression ratio
Cluster engine 3 starts output than rotating in " middling speed state " bigger power drive left rear wheel 10 and off hind wheel 11, at the same time
Small reduction ratio cluster engine 4 is also started to work, extract fuel tank 22 in low octane rating fuel oil, complete " air inlet, compression, burning,
Exhaust ", output power drives the near front wheel 8 and off-front wheel 9 to rotate, until the power for meeting current " fast state ", this mistake
The big compression ratio engine group 3 of journey and small reduction ratio cluster engine 4 work at the same time；
S4, speed are begun to decline, and when vehicle changes from " fast state " to " middling speed state ", ECU controls small reduction ratio
Cluster engine 4 is gradually reduced power output, while big compression ratio engine group 3 continues that working condition is kept to carry out output power driving
Left rear wheel 10 and off hind wheel 11 rotate, after small reduction ratio cluster engine 3 stops working completely, only by big compression ratio engine group
3 provide vehicle in the power output of " middling speed state " downward driving；
S5, speed continue to decline, and when vehicle changes from " middling speed state " to " lower-speed state ", ECU controls big compression ratio
Cluster engine 3 is gradually reduced power output, while small reduction ratio cluster engine 4 is started to work, and extracts the low octane in fuel tank 22
It is worth fuel oil, completes " air inlet, compression, burning, exhaust ", output power drives the near front wheel 8 and off-front wheel 9 to rotate, and works as small reduction ratio
After cluster engine 4 has certain power output, big compression ratio engine group 3 stops working, hereafter, only by small reduction ratio engine
Group 4 provides vehicle in the power output of " lower-speed state " downward driving.
In the embodiment of the present invention, the cylinder fuel feeding of cluster engine, the acquisition of each sensor how is given to obtain phase about fuel tank
Close how data and engine are all that the prior art may be implemented with clutch and gearbox co-ordination etc., the present invention is real
It applies in example and does not repeat again.
Above only describes basic principle of the invention and preferred embodiment, those skilled in the art can be according to foregoing description
Many changes and improvements are made, these changes and improvements should be within the scope of protection of the invention.
Claims (3)
1. a kind of vehicle energy-saving system with twin-engined groups of double fuel tanks-, including fuel tank, twin-engined groups and two speed changes
Case, the fuel tank include the fuel tank one (1) for holding high-octane rating fuel oil and the fuel tank two for holding low octane rating fuel oil
(2), described twin-engined groups include one big compression ratio engine group (3) and a small reduction ratio cluster engine (4), described two
A gearbox is gearbox one (5) and gearbox two (6)；The big compression ratio engine group (3) is provided by fuel tank one (1) for it
High-octane rating fuel oil, small reduction ratio cluster engine (4) provide low octane rating fuel oil, the big compression ratio by fuel tank two (2) for it
Cluster engine (3) is connect by clutch with gearbox one (5), and small reduction ratio cluster engine (4) passes through clutch and gearbox
Two (6) connection；The control method of the vehicle energy-saving system that there are double twin-engined groups of fuel tanks-, which is characterized in that including
Following steps:
S1, starting vehicle, starting traveling, when vehicle is in " lower-speed state " when driving, ECU controls small reduction ratio cluster engine
(4) it works, exports power required for vehicle driving, big compression ratio engine group (3) is idle at this time；
S2, speed rise, and when vehicle changes from " lower-speed state " to " middling speed state ", ECU controls small reduction ratio cluster engine
(4) it works on a period of time, while big compression ratio engine group (3) is started to work, when big compression ratio engine group (3) has
After power output, small reduction ratio cluster engine (4) tapers off work, at the same time the output work of big compression ratio engine group (3)
Until rate continues to rise to the power that can satisfy current " middling speed state ", at this moment small reduction ratio cluster engine (4) stops completely
Work；
S3, speed continue to rise, and when vehicle changes from " middling speed state " to " fast state ", ECU controls big compression ratio and starts
Unit (3) starts output than the power bigger in " middling speed state ", and small reduction ratio cluster engine (4) is also started to work at the same time
With output power, until the power for meeting current " fast state ", the big compression ratio engine group (3) of this process and small compression
It is worked at the same time than cluster engine (4)；
S4, speed are begun to decline, and when vehicle changes from " fast state " to " middling speed state ", ECU control small reduction ratio starts
Unit (4) is gradually reduced power output, while big compression ratio engine group (3) continues to keep working condition, when small reduction ratio is sent out
After motivation group (3) stops working completely, vehicle only is provided in the dynamic of " middling speed state " downward driving by big compression ratio engine group (3)
Power output；
S5, speed continue to decline, and when vehicle changes from " middling speed state " to " lower-speed state ", ECU controls big compression ratio and starts
Unit (3) is gradually reduced power output, while small reduction ratio cluster engine (4) is started to work, when small reduction ratio cluster engine (4)
After dynamic output, big compression ratio engine group (3) stops working, and hereafter, only provides vehicle by small reduction ratio cluster engine (4)
In the power output of " lower-speed state " downward driving.
2. energy conserving system according to claim 1, which is characterized in that after the big compression ratio engine group (3) is set to
At axle center position, small reduction ratio cluster engine (4) be set to front axle center position, or, big compression ratio engine group
(3) it is set to front axle center position, small reduction ratio cluster engine (4) is set to rear axle center position.
3. energy conserving system according to claim 2, which is characterized in that in the step S1, " lower-speed state " includes idling
The state of traveling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810489822.9A CN108859718B (en) | 2018-05-21 | 2018-05-21 | A kind of vehicle energy-saving system and its control method with twin-engined groups of double fuel tanks- |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810489822.9A CN108859718B (en) | 2018-05-21 | 2018-05-21 | A kind of vehicle energy-saving system and its control method with twin-engined groups of double fuel tanks- |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108859718A CN108859718A (en) | 2018-11-23 |
| CN108859718B true CN108859718B (en) | 2019-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810489822.9A Active CN108859718B (en) | 2018-05-21 | 2018-05-21 | A kind of vehicle energy-saving system and its control method with twin-engined groups of double fuel tanks- |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2043560U (en) * | 1988-06-21 | 1989-08-30 | 周大觉 | Double propulsion unit for the vehicle with two engines |
| CN2041638U (en) * | 1988-07-25 | 1989-07-26 | 周大觉 | Dual motive power device for dual engine automobile |
| CN1160652A (en) * | 1996-09-25 | 1997-10-01 | 马骏瑞 | Energy-economizing automobile |
| CN1199680A (en) * | 1997-05-15 | 1998-11-25 | 时作江 | Fuel economizing automobile |
| CN201205862Y (en) * | 2008-04-30 | 2009-03-11 | 李修燕 | Vehicle fuel-economizing and power device |
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2018
- 2018-05-21 CN CN201810489822.9A patent/CN108859718B/en active Active
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| CN108859718A (en) | 2018-11-23 |
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