CN105863804A - Engine cooling system adopting electronic control-assisted water pump - Google Patents
Engine cooling system adopting electronic control-assisted water pump Download PDFInfo
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- CN105863804A CN105863804A CN201610284528.5A CN201610284528A CN105863804A CN 105863804 A CN105863804 A CN 105863804A CN 201610284528 A CN201610284528 A CN 201610284528A CN 105863804 A CN105863804 A CN 105863804A
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- cooling system
- coolant
- pump
- automatically controlled
- high temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/20—Cooling circuits not specific to a single part of engine or machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/02—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
- B60H1/04—Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant from cooling liquid of the plant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/002—Cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P2005/105—Using two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2031/00—Fail safe
- F01P2031/30—Cooling after the engine is stopped
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2050/00—Applications
- F01P2050/22—Motor-cars
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/02—Intercooler
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/04—Lubricant cooler
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/12—Turbo charger
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Supercharger (AREA)
Abstract
The invention relates to an engine cooling system adopting an electronic control-assisted water pump. The engine cooling system comprises a high-temperature circulation cooling system and a low-temperature circulating cooling system, wherein the high-temperature circulation cooling system is provided with a large-circulation cooling liquid flow path, a small-circulation cooling liquid flow path and a delayed-circulation cooling liquid flow path. The heating requirement of each component after shutoff of an engine can be met better, and the problem of flow directions of cooling circulations among different components is solved through adding the electronic control-assisted water pump to the high-temperature circulation cooling system and realizing delayed circulation.
Description
Technical field
The invention belongs to automobile cooling system field, specifically refer to a kind of electromotor using automatically controlled auxiliary pump
Cooling system.
Background technology
The oil consumption of electromotor is promulgated more and more harsh standard by national governments, such as specifies in the year two thousand twenty requirement
Automobile main frame maker persistently reduces oil consumption to 5.0L/100km；Fuel-economizing has become as the development trend of world car,
And a most important technology is exactly the supercharging miniaturization+Technology of Hybrid Electric Vehicle of electromotor in fuel-saving measures.
In response to the regulation of local government, it is necessary to find a kind of Engine Matching system more innovated
Become this target.Because on the premise of not losing dynamic property, want oil consumption to decline on the basis of at present
30% is substantially an impossible mission.It is proposed that face uses hybrid power system on the engine
The supercharging of+electronics, by weak mixed and engine booster miniaturization, reduces the requirement of oil consumption with this.By
Extremely complex in whole system coupling, corresponding car load design of Cooling System also tends to complexity.
Conventional engines cooling system, during electromotor work, the heat that fuel oil burning produces is except acting, warm
Radiation, conducting outside waste gas is taken away, remaining is cooled down by cooling system.Whole cooling circulation point
One-tenth two states: thermostat closed mode and thermostat opening, and thus it is divided into systemic circulation and partial circulating.
Electromotor is in and just starts duty, and water temperature does not rises up, and now, thermostat is in cut out
State, electromotor is in partial circulating state；Along with water temperature gradually rises, the La Bao inside thermostat is heated swollen
Swollen, thermostat is gradually opened, and the loop of connection radiator is opened, and then enters systemic circulation.
Prior art disadvantageously, under the electromotor systemic circulation state of cooling, only one major loop.Along with
The continuous popularization of engines fuel-economizing technology, amount of parts integrated on electromotor gradually increases, as charge air cooler,
BSG, Electron pressurizing unit, electronic water pump etc., these new integrated parts, need also exist for cooling down,
But, its required chilling temperature, flow and to control logical AND engine cylinder-body, cylinder cap completely different；
It addition, along with the application of start-stop technology, such as the HyBoost electromotor of the exploitation such as Ricardo Inc. have quickly
Start-stop function, to reduce engine consumption level, the simple switching regulator mechanical water pump that relies on cannot meet electromotor
Heating demands after shutdown, especially in temperature lower ground district, this defect is especially prominent.Therefore, pass
The Cooling System Control Circuit of system can not meet the application of new technique.
It addition, traditional mechanical type thermostat response is slowly, opens, close the water temperature decision by electromotor,
It is unfavorable for the warming-up of electromotor and the quick cooling of water temperature.
With water-cooled relatively, prior art there is also the air-cooled mode of employing to charge air cooler, BSG, electronics
Supercharger carries out the technical scheme cooled down, but this air cooling way space requirement is high, to whole enging cabin
Being disposed with high requirement, arrange that difficulty is big, thermal balance risk is big, can be only achieved reason it is generally required to be iteratively improved
Think effect.Additionally car load uses environment changeable so that air cooling system is difficult to meet the multiple each operating mode of use environment
Demand；It addition, along with the application of start-stop technology, mechanical water pump cannot meet the heating after electromotor is shut down
Demand, especially in temperature lower ground district, this defect is especially prominent.
To this end, existing engine-cooling system is proposed to improve by applicant, it is specifically shown in the earlier patents of applicant,
CN 105134359A, a kind of engine-cooling system using delay circulation stream；CN 103806999A,
A kind of engine-cooling system；CN 105257384A, a kind of engine-cooling system；CN
105179065A, a kind of electromotor dual cycle cooling system with double expansion tank；In these existing skills
In art, applicant by existing engine cooling and circulating system by improve stream, be improved to high temperature and follow
Loop systems and cold cycle system, and postpone blood circulation, comprehensively improve electromotor and respectively need
The cooling effect of cooling-part, and such improvement technical scheme, compared with technical scheme compare,
Blood circulation cooling effectiveness whole to electromotor improves a lot；But at further research process
In, it has been found that the different coolings order between each parts that electromotor and whole needs cool down,
The most different cooling flowing paths, the raising to the cooling effectiveness of whole cooling system is different, and this
Difference does not have comparability, the i.e. little improvement to cooling flowing path and is respectively provided with different cooling effects.
Summary of the invention
It is an object of the invention to, by proposing to improve technical scheme to existing engine-cooling system, particularly solve
The cooling problem of hybrid power system+electronics engine with supercharger, passes through the technical program, it is possible to preferably fit
The heating requirement of each parts after answering electromotor to shut down, the flow direction solving to cool down between different parts circulation is asked
Topic, is particularly well-suited to such as Hyboost electromotor.
The present invention is achieved by the following technical solutions:
A kind of engine-cooling system using automatically controlled auxiliary pump, includes high temperature circulation cooling system and low
Temperature circulating cooling system；Described high temperature circulation cooling system includes expansion tank, high temperature heat sink, cylinder body
Water jacket, cylinder cover water jacket, switching regulator mechanical water pump, electronic thermostat, oil cooler, automatically controlled auxiliary pump,
Turbocharger and warm braw；Described cold cycle cooling system, includes described expansion tank, low temperature radiation
Device, electronic water pump, Electron pressurizing unit, charge air cooler and BSG；In described cold cycle cooling system, come
Being divided into two-way after the coolant in described low-temperature radiator is pumped out by described electronic water pump, wherein a road is successively
Return to described low-temperature radiator after flowing through described BSG, described Electron pressurizing unit, another road flow through described in cold
Described low-temperature radiator is returned to after device；Described high temperature circulation cooling system has systemic circulation, partial circulating and delay
Circulate three kinds of coolant streams；Postponing in circulation described, described switching regulator mechanical water air pump inoperative, in institute
Stating under the driving of automatically controlled auxiliary pump, the coolant coming from described cylinder cover water jacket flows through described automatically controlled auxiliary water
Entering described switching regulator mechanical water pump after pump, described turbocharger, described warm braw, then coolant is divided into
Three tunnels, the first via returns to described cylinder cover water jacket after flowing through described oil cooler, the second road flows through described cylinder body
Returning to described cylinder cover water jacket after water jacket, the 3rd road returns to described cylinder cover water jacket after flowing through described electronic thermostat.
Preferably, described postponing in circulation, described electronic thermostat is in running order or off position；
When described electronic thermostat is in running order, the 3rd tunnel coolant flows through the main valve of described electronic thermostat
Described cylinder cover water jacket is returned to after door, described high temperature heat sink；
When described electronic thermostat is in off position, the 3rd tunnel coolant flows through described electronic thermostat
Auxiliary-valve after return to described cylinder cover water jacket and without described high temperature heat sink.
Preferably, in described systemic circulation, described automatically controlled auxiliary water air pump inoperative, described switching regulator mechanical water
Coolant in described high temperature heat sink is pumped into described by the main valve of described electronic thermostat by pump respectively
Oil cooler and described cylinder body water jacket, the coolant in described oil cooler returns to the heat radiation of described high temperature
Device, the coolant in described cylinder body water jacket is divided into two-way after flowing through described cylinder cover water jacket, and wherein a road returns to institute
Stating high temperature heat sink, an other road flows through described automatically controlled auxiliary pump, described turbocharger, described warm braw
After return to described switching regulator mechanical water pump.
Preferably, in described partial circulating, described automatically controlled auxiliary water air pump inoperative, described cylinder cover water jacket, institute
State the coolant in oil cooler and enter described switching regulator mechanical water through the auxiliary-valve of described electronic thermostat
Pump, the coolant in described warm braw enters described switching regulator mechanical water pump, and described switching regulator mechanical water pump is by cold
But liquid pumps into described oil cooler and described cylinder body water jacket respectively, and the coolant in described cylinder body water jacket flows through
Being divided into two-way after described cylinder cover water jacket, a road returns to described electricity together with the coolant in described oil cooler
Sub-thermostat, another road enters described warm braw after flowing through described automatically controlled auxiliary pump, described turbocharger.
Preferably, the engine-cooling system of the automatically controlled auxiliary pump of above-mentioned employing also includes water pipe, described
Expansion tank supplements coolant through described water pipe to described electronic water pump and described switching regulator mechanical water pump.
Preferably, the engine-cooling system of the automatically controlled auxiliary pump of above-mentioned employing also includes gas exhaust piping, described
Low-temperature radiator, described high temperature heat sink and described cylinder cover water jacket are through described gas exhaust piping and described expansion tank
Connection.
Preferably, on described gas exhaust piping, it is in series with between described low-temperature radiator and described expansion tank
Between check valve and choke valve, and/or described high temperature heat sink and described cylinder cover water jacket and described expansion tank
It is in series with check valve and choke valve.
Preferably, described low-temperature radiator connects described expansion from described high temperature heat sink by different entrances
Water tank.
The invention has the beneficial effects as follows:
In the engine-cooling system of the application, in addition to large and small cycles, also add delay circulation, electromotor
After shutdown, switching regulator mechanical water pump and electronic water pump all quit work, and the most automatically controlled auxiliary pump is opened, electricity
The coolant that drives control auxiliary pump continues flowing and cools down turbocharger, meets turbocharger and postpones
Cooling demand, then coolant flow through heater to driver's cabin continue heating, coolant through turbine increase
After depressor, coolant temperature improves, and i.e. improves the temperature of the coolant entering warm braw；Turbocharger is with warm
The pressure reduction at wind apparatus branch road two ends increases, and flow improves, and improves warm braw effect.This programme can be effective
Complete the coupling work of engine-cooling system, make car load thermal balance be in a state the best, pipe
Road is reasonable in design；From the angle of car load heat management, significantly reduce the oil consumption of electromotor.And follow at low temperature
In ring cooling system, in coolant flow direction, BSG and Electron pressurizing unit be cascaded after with in cold
Device is in parallel, it is possible to meet respective cooling requirement, and coolant leaving water temperature is the highest, make cold cycle cool down
Liquid temp is held in less than 50 DEG C, and Engine Inlet Temperature and intake efficiency have been effectively ensured, and is conducive to sending out
Wave engine power performance, prevent pinking.
Further, in postponing circulation, by controlling the work of electronic thermostat and not working, be equivalent to
Achieving the large and small circulation postponed within circulation, more adapting to the cooling of different parts under different operating mode needs
Ask.
Further, low-temperature radiator gas exhaust piping, built with check valve and choke valve, prevents in high temperature circulation
When pressure is higher, high-temperature water adverse current enters cold cycle, and additionally choke valve prevents the middle temperature of too much expansion tank
Spend higher coolant to participate in cold cycle.
Further, electronic thermostat and switching regulator mechanical water pump with the use of, it is possible to realize rapid warming-up.
Further, low-temperature radiator connects expansion tank with high temperature heat sink by different entrances, it is possible to
Prevent the gas exhaust piping hypertonia of high temperature circulation cooling system from affecting the aerofluxus of cold cycle cooling system.
Accompanying drawing explanation
Fig. 1 is the engine-cooling system frame using automatically controlled auxiliary pump of first embodiment of the present invention
Frame figure；
Fig. 2 is the engine-cooling system frame using automatically controlled auxiliary pump of second embodiment of the present invention
Frame figure.
Description of reference numerals
1 expansion tank, 2 low-temperature radiators, 3BSG, 4 charge air coolers, 5 electronic water pumps, 6 joints
Stream valve, 7 check valves, 8 high temperature heat sink, 9 electronic thermostats, 10 switching regulator mechanical water pump, 11
Oil cooler, 12 cylinder body water jackets, 13 cylinder cover water jackets, 14 automatically controlled auxiliary pumps, 15 electronics increase
Depressor, 16 turbocharger, 17 warm braws, 18 check valves, 19 choke valves, 20 outlets.
Detailed description of the invention
Describing technical scheme by the following examples in detail, below example is only exemplary
, it is only capable of for explaining and illustrate technical scheme, and is not to be construed as the technology of the present invention side
The restriction of case.
Critical component defines
BSG:(Belt Starter Generator) a kind of belt start generator system: can realize sending out
Motivation plays/stops function, it is achieved energy regenerating, and auxiliary increases the functions such as torsion.
Electronic water pump: a kind of motor-driven water pump, uses piezoelectric to be used as power device, it is possible to achieve from
Control to driving electronization, use electronic integration system to control liquid transmission, it is achieved the adjustability of liquid transport,
Accuracy.
High temperature heat sink: radiator is a part for automobile cooling system, mainly by intake chamber, water-supplying chamber,
The part assembly such as main leaf and radiator centre, Main Function is the high-temperature water in cooling engine water jacket, belongs to
High temperature cooling circulates.
Low-temperature radiator: low-temperature radiator is a part for automobile cooling system, mainly by intake chamber, water outlet
The part assemblies such as room, main leaf and radiator centre, in Main Function is cooling engine intercooler, BSG
Water, belongs to sub-cooled circulation.
Expansion tank: the parts of a kind of automobile cooling system, Main Function is used to store coolant, and this is specially
Profit uses enclosed expansion tank, and the coolant in water tank also assists in the circulation of car load coolant, it addition, swelling water
Case also acts as the scavenging action to radiator and electromotor.
Turbocharger: a kind of air compressor, increases air inflow by compressed air, utilizes electromotor
The waste gas inertia impulsive force discharged promotes the turbine in turbine room, and turbine drives again coaxial impeller, impeller pressure
Sending the air sent here by air filter pipeline to be allowed to supercharging and enter cylinder, Main Function is to increase turning of electromotor
Speed.
Charge air cooler: the auxiliary equipment of engine turbine supercharging, its role is to improve the scavenging efficiency of electromotor,
It it is the important set compound component of engine supercharging system.
Electronic thermostat: a kind of novel electromotor attemperating unit, in this system coolant temperature regulation, cold
But the work of the circulating cooling fan of liquid is determined and by control unit of engine control, phase by engine load
For traditional engine cooling apparatus, there is more preferable fuel economy and lower hydrocarbon emission.
Oil cooler: the thermantidote of a kind of electromotor, Main Function be used to cool down engine crankcase,
The electromotor heat generating components such as clutch, valve assembly.
In following description, as shown in Figures 1 and 2, high temperature circulation is represented with the solid line of band arrow
Systemic circulation coolant stream in cooling system and the coolant flow direction in cold cycle cooling system, with
Dash line with arrow represents the partial circulating coolant flow direction in high temperature circulation cooling system, with band arrow
Tubular wire represent postpone circulation in coolant flow direction, represent cold cycle with the chain-dotted line of band arrow
Water pipe coolant flow direction in cooling system and high temperature circulation cooling system, with the dotted line of band arrow
Represent the gas exhaust piping gas flow direction in cold cycle cooling system and high temperature circulation cooling system.
Reference Fig. 1, the engine-cooling system using automatically controlled auxiliary pump of first embodiment of the present invention,
Include high temperature circulation cooling system and cold cycle cooling system.Cold cycle cooling system, includes swollen
Swollen water tank 1, low-temperature radiator 2, electronic water pump 5, Electron pressurizing unit 15, charge air cooler 4 and BSG3；High
Temperature circulating cooling system include expansion tank 1, high temperature heat sink 8, cylinder body water jacket 12, cylinder cover water jacket 13,
Switching regulator mechanical water pump 10, electronic thermostat 9, oil cooler 11, automatically controlled auxiliary pump 14, turbine
Supercharger 16 and warm braw 17.Although the high temperature circulation cooling system of the present embodiment and cold cycle cooling system
Share an expansion tank 1 as aerofluxus and water replanishing device, but the high temperature circulation cooling system of the present invention with
Cold cycle cooling system runs alone, and each circulation has independent water pump and radiator, and both are the most not
Intervene, and after adding BSG3 and the parts such as Electron pressurizing unit 15, turbocharger 16,
The connection in series-parallel of pipeline, trend, tandem, the design of cooling logic just become extremely important, and
Complicated.The cooling logical design of this programme can effectively complete BSG3 and charge air cooler 4, electronics supercharging
Parts and engine cylinder-body, the different cooling requirements of cylinder cap such as device 15, turbocharger 16.
Cold cycle cooling system is for cooling down BSG3 and charge air cooler 4, Electron pressurizing unit 15.At low temperature
In circulating cooling system, come from after the coolant of low-temperature radiator 2 is pumped out by electronic water pump 5 and be divided into two-way,
Wherein a road returns to low-temperature radiator 2 after flowing through BSG3, Electron pressurizing unit 15 successively, and another road is cold in flowing through
Described low-temperature radiator is returned to, it is ensured that the cooling requirement of three after device 4；In cold cycle cooling system,
The power of coolant comes from the electronic water pump 5 that ECU (electronic control unit) controls, it is possible to meet electromotor
The slow-speed of revolution, high load capacity or electromotor when carrying out thermal starting by BSG3 front end belt BSG3 and charge air cooler 4,
The radiating requirements of Electron pressurizing unit 15, because it is said that in general, during BSG3 is less than for the traffic demand of coolant
Cooler 4；Engine Inlet Temperature and intake efficiency are effectively ensured, have been conducive to playing engine power performance,
Prevent pinking.It addition, in cold cycle cooling system, the coolant in expansion tank 1 passes through electronic water
The water pipe in pump 5 front supplements coolant to electronic water pump 5, it is possible to prevent hypotony before electronic water pump 5
Produce cavitation erosion.It addition, low-temperature radiator 2 connects with expansion tank 1 through gas exhaust piping, and at gas exhaust piping
On, it is in series with check valve 7 and choke valve 6 between low-temperature radiator 2 and expansion tank 1, in low-temperature radiator 2
The coolant being mixed with bubble due to the pressure differential between expansion tank 1 and low-temperature radiator 2 by joint
Stream valve 6 and check valve 7 enter expansion tank.
High temperature circulation cooling system has systemic circulation, partial circulating and delay three kinds of coolant streams of circulation.Start
Machine outlet 20 water temperature is higher than the first predetermined temperature, such as when 105 degrees Celsius, high temperature circulation cooling system
It is in systemic circulation state；Engine water outlet 20 water temperature is less than the second predetermined temperature, such as when 97 degrees Celsius,
High temperature circulation cooling system is in partial circulating state；Outlet 20 water temperature is positioned at the first predetermined temperature and second
Between predetermined temperature, such as, when being less than 105 degrees Celsius higher than 97 degrees Celsius, large and small circulation is deposited simultaneously
?；After electromotor shutdown in the scheduled time, such as in 15 minutes, the delay circulation after electromotor is shut down is left
Beginning work.Can be different according to different engine model, predetermined temperature and the scheduled time.
After engine start, engine water outlet 20 water temperature is higher than the first predetermined temperature, and such as 105 is Celsius
When spending, the main valve of electronic thermostat 9 is opened, and auxiliary-valve is closed, and coolant enters systemic circulation state.?
In systemic circulation state, automatically controlled auxiliary pump 14 does not works, and now can be regarded as allowing coolant to pass through
Pipeline, switching regulator mechanical water pump 10 by the main valve of electronic thermostat 9 by high temperature heat sink 8
Coolant pumps into oil cooler 11 and cylinder body water jacket 12 respectively, the coolant warp in oil cooler 11
The outlet 20 of electromotor returns to high temperature heat sink 8 and realizes circulation, and the coolant in cylinder body water jacket 12 flows through
Being divided into two-way after cylinder cover water jacket 13, wherein a road returns to high temperature heat sink 8 through outlet 20 and realizes circulation,
An other road returns to switching regulator machine after flowing through automatically controlled auxiliary pump 14, turbocharger 16, warm braw 17 successively
Tool water pump 10 realizes circulation.Automatically controlled auxiliary pump keeps not working before engine misses.In systemic circulation,
The coolant temperature that cylinder cover water jacket 13 flows out fully meets the coolant temperature requirement of turbocharger 16, with
Time also improve the temperature of coolant and the flow entering warm braw 17, improve warm braw effect.
Engine water outlet 20 water temperature is less than the second predetermined temperature, such as when 97 degrees Celsius, electronic thermostat
The main valve of 9 is closed, and auxiliary-valve is opened, and high temperature circulation cooling system is in partial circulating state.At partial circulating
In, automatically controlled auxiliary pump 14 does not works, and the coolant of switching regulator mechanical water pump 10 comes from oil cooler
Backwater, the backwater of cylinder cover water jacket 13 and the backwater of warm braw 17 of 11.Wherein, cylinder cover water jacket 13, machine oil
Coolant in cooler 11 after outlet 20 confluxes through the auxiliary-valve access switch formula of electronic thermostat 9
Mechanical water pump 10, the coolant in warm braw 17 is directly entered switching regulator mechanical water pump 10, switching regulator mechanical water
Coolant is pumped into oil cooler 11 and cylinder body water jacket 12, the cooling in cylinder body water jacket 12 by pump 10 respectively
Liquid stream is divided into two-way after cylinder cover water jacket 13, and a road returns to electricity together with the coolant in oil cooler 11
Before the auxiliary-valve of sub-thermostat 9 arrives switching regulator mechanical water pump 10, another road flow through automatically controlled auxiliary pump 14,
Entering warm braw 17 after turbocharger 16, the coolant in warm braw 17 returns switching regulator mechanical water pump 10.
Before engine misses, automatically controlled donkey pump 14 does not works, and now can be considered one section of pipeline.
When the water temperature of outlet 20 is between the first predetermined temperature and the second predetermined temperature, above-mentioned follow greatly
Ring, partial circulating coexist.
And after tail-off, switching regulator mechanical water pump 10 does not works, after the scheduled time, such as 15min,
Automatically controlled auxiliary pump 14 is powered start working by HyBoost system battery or other circuit, high temperature circulation
Cooling system enters and postpones circulation duty.In the delay of first shown in Fig. 1 embodiment circulates,
Electronic thermostat 9 is in running order, and electronic thermostat 9 heats by electrically heated rod, and main valve is opened, secondary
Valve closing, under the driving of automatically controlled auxiliary pump 14, from high temperature heat sink 8, oil cooler 11,
Coolant in cylinder cover water jacket 13 all converges to the cylinder cover water jacket 13 of head exhaust side, then cylinder cover water jacket 13
Coolant flow through and enter switching regulator mechanical water after automatically controlled auxiliary pump 14, turbocharger 16, warm braw 17
Pump 10, coolant is divided into three tunnels after flowing out switching regulator mechanical water pump 10, and the first via flows through oil cooler 11
Returning to cylinder cover water jacket 13 by outlet 20, the second road returns to cylinder cover water jacket 13 after flowing through cylinder body water jacket 12,
3rd road returns to cylinder head water through outlet 20 after flowing through the main valve of electronic thermostat 9, high temperature heat sink 8
Set 13.
With reference to Fig. 2, unlike first embodiment in Fig. 1, implement second shown in Fig. 2
In example, in postponing circulation, electronic thermostat 9 is in off position, now the master of electronic thermostat 9
Valve closing, auxiliary-valve opens, and the 3rd tunnel coolant coming from switching regulator mechanical water pump 10 flows through electronics
After the auxiliary-valve of thermostat 9 directly through outlet 20 return to cylinder cover water jacket 13 and without high temperature heat sink 8.
The effect postponing circulation in Fig. 1 and Fig. 2 is, after electromotor is shut down, and switching regulator mechanical water pump 10
All quitting work with electronic water pump 5, the most automatically controlled auxiliary pump 14 is opened, and automatically controlled auxiliary pump 14 drives
Coolant continues flowing and cools down turbocharger 16, meets the need of turbocharger 16 delayed quench
Asking, then coolant passes through warm braw 17 to driver's cabin continuation heating.Turbocharger 16 is arranged on warm braw
Before 17, the coolant temperature that cylinder cover water jacket 13 is gone out fully meets the coolant temperature of turbocharger 16
Requirement, the coolant temperature through turbocharger 16 improves simultaneously, i.e. improves and enters the cold of warm braw 17
But the temperature of liquid, improves capacity usage ratio and warm braw effect；Turbocharger 16 and warm braw 17 branch road two
The pressure reduction of end increases, and flow improves, and improves warm braw effect.Regardless of whether be in high temperature circulation cooling system
Systemic circulation, partial circulating and delay circulation, or the cold cycle in cold cycle cooling system, all can have
The coupling work completing engine-cooling system of effect, makes car load thermal balance be in a shape the best
State, circuit design is reasonable；From the angle of car load heat management, significantly reduce the oil consumption of electromotor.
And in postponing circulation, by controlling the work of electronic thermostat 9 and the two states that do not works, quite
In having separated again through the systemic circulation of high temperature heat sink 8 with without high temperature heat sink 8 in delay circulation inside
Partial circulating, more adapt to the cooling requirement of different parts under different operating mode.So, turbocharger
16 can either at high temperature circulate, it is also possible to circulate at low temperatures.Therefore, this programme also can be considered right
A kind of new method that engine-cooling system is controlled.
Similar with the water pipe in cold cycle cooling system, high temperature circulation cooling system there is also moisturizing
Pipeline, expansion tank 1 supplements coolant through water pipe to switching regulator mechanical water pump 10.
Similar with the gas exhaust piping in cold cycle cooling system, high temperature circulation cooling system there is also aerofluxus
Pipeline, high temperature heat sink 8 connects 1 through gas exhaust piping with expansion tank with cylinder cover water jacket 13.And row
On air pipe, between high temperature heat sink 8 and cylinder cover water jacket 13 and expansion tank 1, it is in series with check valve 18
With choke valve 19.Low-temperature radiator 2 connects expansion tank 1 from high temperature heat sink 8 by different entrances
Realize aerofluxus, it is possible to prevent the gas exhaust piping hypertonia of high temperature circulation cooling system and to affect cold cycle cold
But the aerofluxus of system.In two embodiments of the application, cold cycle cooling system and high temperature circulation cooling
System all have employed and has been equipped with choke valve and check valve in water pipe, gas exhaust piping, and gas exhaust piping,
Actually cold cycle cooling system or high temperature circulation cooling system also is able to be independently matched with water pipe, aerofluxus
Pipeline, check valve and choke valve.Advantage in the application is, low-temperature radiator gas exhaust piping is built with list
To valve 7 and choke valve 6, it is possible to when preventing that in high temperature circulation, pressure is higher, high-temperature water adverse current enters cold cycle,
The coolant that during additionally choke valve 6 prevents too much expansion tank 1, temperature is higher participates in cold cycle
In.And electronic thermostat 9 and switching regulator mechanical water pump 10 with the use of, it is possible to realize rapid warming-up.
Electron pressurizing unit 15 is positioned in cold cycle cooling system, and turbocharger 16 is positioned at high temperature circulation
In cooling system and participate in postpone circulation, so can adapt to the cooling requirement that both are different.
The above is only the description of the preferred embodiment of the present invention, it is noted that due to literal table
The finiteness reached, and objectively there is unlimited concrete structure, for the common skill of the art
For art personnel, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications,
These improvements and modifications also should be regarded as protection scope of the present invention.
Claims (8)
1. the engine-cooling system using automatically controlled auxiliary pump, it is characterised in that: include high temperature
Circulating cooling system and cold cycle cooling system；
Described high temperature circulation cooling system includes expansion tank, high temperature heat sink, cylinder body water jacket, cylinder head water
Set, switching regulator mechanical water pump, electronic thermostat, oil cooler, automatically controlled auxiliary pump, turbocharger
And warm braw；
Described cold cycle cooling system, include described expansion tank, low-temperature radiator, electronic water pump,
Electron pressurizing unit, charge air cooler and BSG；
In described cold cycle cooling system, come from the coolant of described low-temperature radiator by described electronics
Water pump is divided into two-way after pumping out, and wherein a road returns to institute after flowing through described BSG, described Electron pressurizing unit successively
Stating low-temperature radiator, another road returns to described low-temperature radiator after flowing through described charge air cooler；
Described high temperature circulation cooling system has systemic circulation, partial circulating and delay three kinds of coolant streams of circulation；
Postponing in circulation described, described switching regulator mechanical water air pump inoperative, at described automatically controlled auxiliary pump
Under driving, the coolant coming from described cylinder cover water jacket flows through described automatically controlled auxiliary pump, described turbocharging
Entering described switching regulator mechanical water pump after device, described warm braw, then coolant is divided into three tunnels, and the first via flows through
Returning to described cylinder cover water jacket after described oil cooler, the second road returns to described cylinder after flowing through described cylinder body water jacket
Lid water jacket, the 3rd road returns to described cylinder cover water jacket after flowing through described electronic thermostat.
The engine-cooling system of the automatically controlled auxiliary pump of employing the most according to claim 1, its feature
Being: described postpone in circulation, described electronic thermostat is in running order or off position；
When described electronic thermostat is in running order, the 3rd tunnel coolant flows through described electronic thermostat
Described cylinder cover water jacket is returned to after main valve, described high temperature heat sink；
When described electronic thermostat is in off position, the 3rd tunnel coolant flows through described electronic thermostat
Auxiliary-valve after return to described cylinder cover water jacket and without described high temperature heat sink.
The engine-cooling system of the automatically controlled auxiliary pump of employing the most according to claim 1 and 2, its
It is characterised by:
In described systemic circulation, described automatically controlled auxiliary water air pump inoperative, described switching regulator mechanical water pump passes through institute
Coolant in described high temperature heat sink is pumped into the cooling of described machine oil by main valve respectively that state electronic thermostat
Device and described cylinder body water jacket, the coolant in described oil cooler returns to described high temperature heat sink, described cylinder
Coolant in body water jacket is divided into two-way after flowing through described cylinder cover water jacket, and wherein a road returns to the heat radiation of described high temperature
Device, an other road returns to described after flowing through described automatically controlled auxiliary pump, described turbocharger, described warm braw
Switching regulator mechanical water pump.
The engine-cooling system of the automatically controlled auxiliary pump of employing the most according to claim 1 and 2, its
It is characterised by:
In described partial circulating, described automatically controlled auxiliary water air pump inoperative, described cylinder cover water jacket, described machine oil are cold
But the coolant in device enters described switching regulator mechanical water pump through the auxiliary-valve of described electronic thermostat, described warm
Coolant in wind enters described switching regulator mechanical water pump, and described switching regulator mechanical water pump is by coolant pump respectively
Entering described oil cooler and described cylinder body water jacket, the coolant in described cylinder body water jacket flows through described cylinder head water
Being divided into two-way after set, a road returns to described electronic thermostat together with the coolant in described oil cooler,
Another road enters described warm braw after flowing through described automatically controlled auxiliary pump, described turbocharger.
The engine-cooling system of the automatically controlled auxiliary pump of employing the most according to claim 1 and 2, its
Be characterised by: also include water pipe, described expansion tank through described water pipe to described electronic water pump and
Described switching regulator mechanical water pump supplements coolant.
The engine-cooling system of the automatically controlled auxiliary pump of employing the most according to claim 1 and 2, its
It is characterised by: also include gas exhaust piping, described low-temperature radiator, described high temperature heat sink and described cylinder head water
Set connects with described expansion tank through described gas exhaust piping.
The engine-cooling system of the automatically controlled auxiliary pump of employing the most according to claim 6, its feature
It is: on described gas exhaust piping, between described low-temperature radiator and described expansion tank, is in series with check valve
And be in series with between choke valve, and/or described high temperature heat sink and described cylinder cover water jacket and described expansion tank
Check valve and choke valve.
The engine-cooling system of the automatically controlled auxiliary pump of employing the most according to claim 6, its feature
It is: described low-temperature radiator connects described expansion tank from described high temperature heat sink by different entrances.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111878212A (en) * | 2020-07-23 | 2020-11-03 | 广西玉柴机器股份有限公司 | Efficient hybrid engine cooling system and engine cooling method |
| CN111878209A (en) * | 2020-07-23 | 2020-11-03 | 广西玉柴机器股份有限公司 | Efficient hybrid engine cooling system and engine cooling method |
| CN114810276A (en) * | 2022-05-06 | 2022-07-29 | 马勒汽车技术（中国）有限公司 | Variable flow type heat exchanger and power assembly |
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| CN105156195A (en) * | 2015-10-16 | 2015-12-16 | 安徽江淮汽车股份有限公司 | Engine cooling system adopting electric control auxiliary water pump |
| CN105351070A (en) * | 2015-10-16 | 2016-02-24 | 安徽江淮汽车股份有限公司 | Engine cooling system adopting electronic control auxiliary water pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156195A (en) * | 2015-10-16 | 2015-12-16 | 安徽江淮汽车股份有限公司 | Engine cooling system adopting electric control auxiliary water pump |
| CN105351070A (en) * | 2015-10-16 | 2016-02-24 | 安徽江淮汽车股份有限公司 | Engine cooling system adopting electronic control auxiliary water pump |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878212A (en) * | 2020-07-23 | 2020-11-03 | 广西玉柴机器股份有限公司 | Efficient hybrid engine cooling system and engine cooling method |
| CN111878209A (en) * | 2020-07-23 | 2020-11-03 | 广西玉柴机器股份有限公司 | Efficient hybrid engine cooling system and engine cooling method |
| CN111878209B (en) * | 2020-07-23 | 2023-08-08 | 广西玉柴机器股份有限公司 | Efficient hybrid engine cooling system and engine cooling method |
| CN111878212B (en) * | 2020-07-23 | 2023-10-10 | 广西玉柴机器股份有限公司 | Efficient hybrid engine cooling system and engine cooling method |
| CN114810276A (en) * | 2022-05-06 | 2022-07-29 | 马勒汽车技术（中国）有限公司 | Variable flow type heat exchanger and power assembly |
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