CN108859718A - 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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- CN108859718A CN108859718A CN201810489822.9A CN201810489822A CN108859718A CN 108859718 A CN108859718 A CN 108859718A CN 201810489822 A CN201810489822 A CN 201810489822A CN 108859718 A CN108859718 A CN 108859718A
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- Prior art keywords
- compression ratio
- small reduction
- engine
- reduction ratio
- big compression
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Classifications
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- 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：Such 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 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 double
Cluster engine includes 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, small reduction ratio engine by fuel tank one for it
Group provides low octane rating fuel oil by fuel tank two for it, and the big compression ratio engine group is connect by clutch with gearbox one,
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 cluster engine work
Make, export power required for vehicle driving, 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 controls small reduction ratio cluster engine
It works on a period of time, while big compression ratio engine group is started to work, after the dynamic output of big compression ratio engine group,
Small reduction ratio cluster engine tapers off work, and continue to rise to can for the output power of big compression ratio engine group at the same time
Until the power for meeting 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 and starts
Unit starts output than the power bigger in " middling speed state ", and small reduction ratio cluster engine is also started to work to export at the same time
Power, until the power for meeting current " fast state ", the big compression ratio engine group of this process and small reduction ratio engine
Group works at the same time；
S4, speed are begun to decline, and when vehicle changes from " fast state " to " middling speed state ", ECU control small reduction ratio starts
Unit is gradually reduced power output, while big compression ratio engine group continues to keep working condition, when small reduction ratio cluster engine
After stopping 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 and starts
Unit is gradually reduced power output, while small reduction ratio cluster engine is started to work, when small reduction ratio cluster engine is dynamic defeated
After out, big compression ratio engine group stops working, and hereafter, only provides vehicle under " lower-speed state " by small reduction ratio cluster engine
The power output of traveling.
Currently preferred, in the step S1, " lower-speed state " includes the state of idling traveling.
The beneficial effects of the invention are as follows：
The present invention can provide the solution better than conventional truck burning under the friction speed state of vehicle driving, in narrow sense
On, 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, has been guaranteed
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, by taking automatic catch automobile as an example, packet
Fuel tank, twin-engined groups and two gearboxes are included, as shown in Figure 1, the fuel tank includes the oil for holding high-octane rating fuel oil
Case 1 and fuel tank 22 for holding low octane rating fuel oil, described twin-engined groups include one big compression ratio engine group 3
With a small reduction ratio cluster engine 4, described two gearboxes are gearbox 1 and gearbox 26；The big compression ratio starts
Unit 3 provides high-octane rating fuel oil by fuel tank 1 for it, and small reduction ratio cluster engine 4 provides low octane rating by fuel tank 22 for it
Fuel oil, the big compression ratio engine group 3 connect output power with gearbox 1 by clutch and drive vehicle by semiaxis 7
Wheel, small reduction ratio cluster engine 4 connect output power with gearbox 26 by clutch and drive wheel by semiaxis 7, due to
Two clutches are respectively arranged in gearbox one and gearbox two, therefore clutch does not identify in figure.It does not identify on the diagram
There are also vehicle speed sensor, engine speed sensor and ECU etc..
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 Fig. 1 institute
Show, includes the following steps：
S1, starting vehicle, starting traveling, when vehicle is in " lower-speed state " when driving, " lower-speed state " also includes idling
The state of traveling, ECU control small reduction ratio cluster engine 4 and work, and at this moment small reduction ratio cluster engine 4 extracts in fuel tank 22
Low octane rating fuel oil is completed " air inlet, compression, burning, exhaust ", is exported power required for vehicle driving and is driven by semiaxis 7
Dynamic the near front wheel 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 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, and the high-octane rating fuel oil in fuel tank 1 is extracted, it is complete
Left rear wheel 10 and off hind wheel 11 is driven to rotate at " air inlet, compression, burning, exhaust ", output power and by semiaxis 7, when big pressure
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 compression ratio
Until the output power of cluster engine 3 continues to rise to the power that can satisfy current " middling speed state ", at this moment small reduction ratio is sent out
Motivation group 4 stops working completely；
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 to export than rotating in " middling speed state " bigger power drive left rear wheel 10 and off hind wheel 11, at the same time small pressure
Compression ratio engine group 4 is also started to work, and the low octane rating fuel oil in fuel tank 22 is extracted, and completes " air inlet, compression, burning, row
Gas ", output power drives the near front wheel 8 and off-front wheel 9 to rotate, until the power for meeting current " fast state ", this process
Big compression ratio engine group 3 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 control small reduction ratio starts
Unit 4 is gradually reduced power output, while big compression ratio engine group 3 continues working condition is kept to carry out output power driving left back
Wheel 10 and off hind wheel 11 rotate, and after small reduction ratio cluster engine 3 stops working completely, are only mentioned by big compression ratio engine group 3
For vehicle " middling speed state " downward driving 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, and extracts the low octane rating combustion in fuel tank 22
Oil is completed " air inlet, compression, burning, exhaust ", and output power drives the near front wheel 8 and off-front wheel 9 to rotate, when small reduction ratio starts
After unit 4 has certain power output, big compression ratio engine group 3 stops working, hereafter, only by small reduction ratio cluster engine 4
Vehicle is provided 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 (4)
1. a kind of vehicle energy-saving system with twin-engined groups of double fuel tanks-, which is characterized in that including fuel tank, twin-engined groups
With two gearboxes, the fuel tank includes the fuel tank one for holding high-octane rating fuel oil（1）It is fired with for holding low octane rating
The fuel tank two of oil（2）, described twin-engined groups include one big compression ratio engine group（3）With a small reduction ratio cluster engine
（4）, described two gearboxes are gearbox one（5）With gearbox two（6）；The big compression ratio engine group（3）By fuel tank one
（1）High-octane rating fuel oil, small reduction ratio cluster engine are provided for it（4）By fuel tank two（2）Low octane rating fuel oil, institute are provided for it
State big compression ratio engine group（3）Pass through clutch and gearbox one（5）Connection, small reduction ratio cluster engine（4）Pass through clutch
Device and gearbox two（6）Connection.
2. energy conserving system according to claim 1, which is characterized in that the big compression ratio engine group（3）After being set to
At axle center position, small reduction ratio cluster engine（4）It is 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）It is set to rear axle center position.
3. the control method of the vehicle energy-saving system with double twin-engined groups of fuel tanks-according to claim 1 or 2,
It is characterized in that, includes the following steps：
S1, starting vehicle, starting traveling, when vehicle is in " lower-speed state " when driving, ECU controls small reduction ratio cluster engine
（4）Work exports power required for vehicle driving, at this time big compression ratio engine group（3）It is idle；
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）It starts to work, when big compression ratio engine group（3）Have
After power output, small reduction ratio cluster engine（4）Work is tapered off, at the same time big compression ratio engine group（3）Output work
Rate continues to rise to until can satisfy the currently power of " middling speed state ", at this moment small reduction ratio cluster engine（4）Stop 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）Start output than the power bigger in " middling speed state ", at the same time small reduction ratio cluster engine（4）Also it starts to work
With output power, until the power for meeting current " fast state ", the big compression ratio engine group of this process（3）With small compression
Compare cluster engine（4）It works at the same time；
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）It is gradually reduced power output, while big compression ratio engine group（3）Continue to keep working condition, when small reduction ratio is sent out
Motivation group（3）After stopping working completely, only by big compression ratio engine group（3）Vehicle is provided in the dynamic of " middling speed state " downward driving
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）It is gradually reduced power output, while small reduction ratio cluster engine（4）It starts to work, when small reduction ratio cluster engine（4）
After dynamic output, big compression ratio engine group（3）It stops working, hereafter, only by small reduction ratio cluster engine（4）Vehicle is provided
In the power output of " lower-speed state " downward driving.
4. control method according to claim 3, 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- |
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| 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- |
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| Publication Number | Publication Date |
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| CN108859718A true CN108859718A (en) | 2018-11-23 |
| CN108859718B CN108859718B (en) | 2019-10-11 |
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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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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2041638U (en) * | 1988-07-25 | 1989-07-26 | 周大觉 | Dual motive power device for dual engine automobile |
| CN2043560U (en) * | 1988-06-21 | 1989-08-30 | 周大觉 | Double propulsion unit for the vehicle with two engines |
| 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 |
-
2018
- 2018-05-21 CN CN201810489822.9A patent/CN108859718B/en active Active
Patent Citations (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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| CN108859718B (en) | 2019-10-11 |
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