CN106224082B - A kind of cooling system of electric engineering car - Google Patents

A kind of cooling system of electric engineering car Download PDF

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Publication number
CN106224082B
CN106224082B CN201610614225.5A CN201610614225A CN106224082B CN 106224082 B CN106224082 B CN 106224082B CN 201610614225 A CN201610614225 A CN 201610614225A CN 106224082 B CN106224082 B CN 106224082B
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China
Prior art keywords
cooling
engine
oil
cooler
turbocharger
Prior art date
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CN201610614225.5A
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Chinese (zh)
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CN106224082A (en
Inventor
王启银
袁思祥
程远
力勃勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Datong Power Supply Co of State Grid Shanxi Electric Power Co Ltd
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Datong Power Supply Co of State Grid Shanxi Electric Power Co Ltd
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Application filed by Datong Power Supply Co of State Grid Shanxi Electric Power Co Ltd filed Critical Datong Power Supply Co of State Grid Shanxi Electric Power Co Ltd
Priority to CN201610614225.5A priority Critical patent/CN106224082B/en
Publication of CN106224082A publication Critical patent/CN106224082A/en
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Publication of CN106224082B publication Critical patent/CN106224082B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12Control of the pumps
    • F02B37/18Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/08Arrangements of lubricant coolers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00Liquid cooling
    • F01P3/12Arrangements for cooling other engine or machine parts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P3/00Liquid cooling
    • F01P3/20Cooling circuits not specific to a single part of engine or machine
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/14Lubrication of pumps; Safety measures therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00Cooling circuits using auxiliaries
    • F01P2060/02Intercooler
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00Cooling circuits using auxiliaries
    • F01P2060/04Lubricant cooler
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2060/00Cooling circuits using auxiliaries
    • F01P2060/12Turbo charger
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B29/00Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
    • F02B29/04Cooling of air intake supply
    • F02B29/0406Layout of the intake air cooling or coolant circuit
    • F02B29/0437Liquid cooled heat exchangers
    • F02B29/0443Layout of the coolant or refrigerant circuit
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

A kind of cooling system of electric engineering car, including engine, the engine configuration have turbocharger, and turbocharger includes turbine, shaft coupling and compressor, and EGR conduit is provided with before turbocharger, is provided with cooler for recycled exhaust gas on the EGR conduit.It further include oil cooled system, for being lubricated to the turbocharger and engine.It further include water cooling system, for being lubricated to oil cooled system and cooler for recycled exhaust gas.It is additionally provided with exhaust pipe before the turbocharger, is introduced directly into exhaust after treatment system and without the turbocharger for that will be vented.Cooling system of the invention can choose whether turbocharger works, and effectively cool down to turbocharger and air inlet, and the cooling requirement between each thermal part of balanced engine improves the cooling efficiency of system on the whole.

Description

A kind of cooling system of electric engineering car
Technical field
The present invention relates to a kind of cooling system, more particularly, to a kind of cooling system of electric engineering car.
Background technique
Electric engineering car is the vehicle for executing electric power task, is widely used in all kinds of electric power first-aids, in installation task.Electric power work It is normally travel when journey vehicle routine work, but when the certain tasks of execution, engine is needed to export biggish torque.Such as hung When dress, trailer task, the revolving speed of engine and output is needed all to reach higher level.Under normal conditions, electric engineering car meeting Meet powerful demand using turbocharger, however turbocharger can increase oil consumption significantly, because usually starting The flame-out front and back of machine, it is necessary to maintain the oil lubricating to turbocharger cooling, otherwise can cause heat waste to turbocharger.When When electric engineering car is cruised, due to not needing high-power output, it is not usually required to turbocharger and works.However it is existing Having in technology can selectively select whether turbocharger works there is no a kind of system, no matter usual turbocharger is sent out How the output of motivation is all to maintain working condition, this has resulted in turbocharger and has needed while being cooled down, and is increased The cooling load of engine.
Summary of the invention
In order to solve the problems in the existing technology, present invention thus provides a kind of cooling systems of electric engineering car Including engine, the engine configuration has turbocharger, and the turbocharger includes turbine, shaft coupling and compression Machine;The exhaust end of the engine is managed configured with ERG, for the portion of engine to be introduced ERG cooler, by ERG Cooler exhaust gas after cooling passes through compressed air escape pipe after further mixing with the compressed air after the compressor compresses It enters in charge air cooler and is cooled down, then enter the inlet end of engine, the air inlet by inlet manifold together again Cooler is arranged on the inlet manifold;Further include oil cooled system, for the turbocharger and engine into Row lubrication;It further include water cooling system, for being lubricated to oil cooled system and cooler for recycled exhaust gas;It is characterized in that, institute State and be additionally provided with exhaust pipe before turbocharger, for will be vented be introduced directly into exhaust after treatment system and without described Turbocharger.
Particularly, lubrication oil bypass can be crossed the turbocharger and be directly entered institute by the oil cooled system It states in engine, the water cooling system can introduce cooling water or side passes through the charge air cooler.
Particularly, the oil cooled system includes machine oil refrigerating module and engine oil pipeline, and the machine oil refrigerating module is used In being filtered and cooling down to lubricating oil, the engine oil pipeline is for exporting filtering and lubricating oil after cooling, in the machine oil Organic oil is arranged on pipeline to bypass, machine oil bypass imports in the shaft coupling for that will filter with lubricating oil after cooling, right Turbocharger is cooled down;The engine is in fluid communication in the engine oil pipeline, further includes machine oil drainback passage, for that will moisten Lubricating oil after sliding and cooling engine returns in machine oil refrigerating module.
Particularly, the water cooling system includes water pump, for it will introduce by radiator cooling water after cooling described in It further include cooler for recycled exhaust gas pipeline in machine oil refrigerating module and cooler for recycled exhaust gas, for that cooling water will be imported after cooler for recycled exhaust gas In cooling supply mains, it further includes water return pipeline that the cooling supply mains, which imports in engine, described for returning to cooling water In radiator;It is provided with water bypass pipe on the cooler for recycled exhaust gas pipeline, which is used for will be cold in EGR But the cooling water of device pipeline is introduced into charge air cooler air inlet is cooled down after import in the cooling supply mains.
Particularly, it is provided with solenoid valve on the engine oil pipeline, is used to open or closes engine oil pipeline;In the machine oil Solenoid valve is also equipped in bypass, for being used to open or closing machine oil bypass;Solenoid valve is provided on cooler for recycled exhaust gas pipeline It is used to open or closes cooler for recycled exhaust gas pipe;The water bypass pipe be provided with solenoid valve be used to open or cooling water bypass Pipe, above-mentioned all solenoid valves are electrically connected on ECU, and the ECU is beaten according to the above-mentioned all electromagnetism of demand control of engine On or off is closed.
Further, when ECU detects that engine needs high-power, large torque output, the ECU controls the whirlpool Booster work is taken turns, while controlling the solenoid valve on the solenoid valve and water bypass pipe that machine oil bypasses and opening, while controlling EGR Solenoid valve on solenoid valve and engine oil pipeline on cooler pipeline is closed.
Further, when ECU detects that engine does not need high-power, large torque output, the ECU control exhaust Side is controlled the solenoid valve on the solenoid valve and water bypass pipe that machine oil bypasses and is closed by the turbocharger, together When control cooler for recycled exhaust gas pipeline on solenoid valve and engine oil pipeline on solenoid valve open.
Further, when ECU detects that engine does not need high-power, large torque output, the ECU control exhaust Side is by the turbocharger, while the solenoid valve for controlling machine oil bypass is closed, while controlling the electricity on water bypass pipe Solenoid valve on solenoid valve and engine oil pipeline on magnet valve, cooler for recycled exhaust gas pipeline is opened.
Further, the machine oil refrigerating module includes oil filter and oil cooler, the oil cooler packet Cooling core is included, the oil filter is twinfilter form, and wherein first filter is used to carry out engine conveying Lubricating oil is filtered, and the cooling core is used for for receiving the filtered lubricating oil of first filter, the second filter by institute It states after cooling core lubricating oil after cooling is filtered again and is output in engine oil pipeline
Cooling system of the invention makes when engine does not need high-power operation, whether lubricating oil or cooling water All preferable through less thermal part, " direct " cools down engine, thus the cooling efficiency of engine of the invention It gets a promotion.And when engine needs high-power operation, cooling system of the invention can effectively to turbocharger and Air inlet is cooled down, and the cooling requirement between each thermal part of balanced engine improves the cooling efficiency of system on the whole.
Detailed description of the invention
When considered in conjunction with the accompanying drawings, can be good at understanding that structure of the invention, principle, work are special with reference to following description Point and advantage, but attached drawing described herein as is used to that of the invention is explained further, and accompanying schematic figure is intended merely to preferably right The present invention is illustrated, and does not constitute improper restriction to the present invention, in which:
Fig. 1 is the composition schematic diagram of the cooling system of electric engineering car of the present invention;
Fig. 2 is the structural schematic diagram of the machine oil refrigerating module of the cooling system of electric engineering car of the invention.
Specific embodiment
Below with reference to example and attached drawing, the invention will be further described, it is noted that following embodiment is only Be it is schematical, be not intended to limitation the present invention.
With reference to Fig. 1, the cooling system of electric engineering car of the invention includes engine 1, which increases configured with turbine Depressor, turbocharger include turbine 9, shaft coupling 8 and compressor 10, and wherein turbine 9 is used to receive the useless of engine 1 Gas rotates under the driving of exhaust gas, and drives compressor 10 to rotate by shaft coupling 8.Compressor 10 is for after compressing air Conveying charge air cooler 6 is cooled down, and is then delivered to the inlet end of engine 1 again.The exhaust end of engine 1 is configured with ERG Pipe, for the portion of engine 1 to be introduced ERG cooler 7, by the exhaust gas after cooling of ERG cooler 7 further with pressure Enter in charge air cooler 6 and cooled down by compressed air escape pipe 23 after the mixing of contracting air, then again together by into Gas general pipeline 21 enters the inlet end of engine 1.
Cooling system of the invention includes lubricating oil cooling system, and with reference to Fig. 2, which includes that machine oil is cold But module 5, the machine oil refrigerating module 5 include oil filter 51 and oil cooler 52, are filtered by oil filter 51 Machine oil is further cooled down in the cooling core 52 of oil cooler 52, and machine oil after cooling is delivered to by engine oil pipeline 15 Engine 1 is returned in oil filter 51 after engine 1 is further lubricated and cooled down by machine oil drainback passage 17. Organic oil is set on engine oil pipeline 15 and bypasses 16, machine oil bypass 16 is for importing turbocharger for lubricating oil after cooling Shaft coupling 8 in, to cool down to turbocharger, the lubricating oil after cooling turbocharger is imported in engine oil pipeline 15, It enters back into after engine 1 is cooled down and lubricated to engine 1 and is returned in oil filter 51 by machine oil drainback passage 17.
Oil filter 51 of the invention is twinfilter form, and lubricating oil is initially entered in first filter 511 and carried out Enter in cooling core 53 after filtering, after carrying out heat exchange with the cooling water in oil cooler 52 in cooling core 53, enters back into It is filtered into the second filter 512, enters in engine oil pipeline 15 after the completion of filtering.Since cooling core 53 is usually by made of metal At, therefore also will receive certain pollution by the lubricating oil of cooling core 53, it is therefore necessary to it is for re-filtering to its.
Cooling system of the invention further includes water cooling system, which includes water pump 4, and water pump 4 is for will be through It crosses the cooling water after cooling of radiator 2 to be introduced into the oil cooler 52 of machine oil refrigerating module 5, in machine oil refrigerating module 5 Lubricating oil is cooled down, and then cooling water enters in cooler for recycled exhaust gas 7 by cooling water pipeline 22, to the exhaust in cooler for recycled exhaust gas It being imported in cooling supply mains 20 after carrying out cooling using cooler for recycled exhaust gas pipeline 25, cooling supply mains 20 imports in engine 1, After cylinder and cylinder cap to engine 1 cool down, returned in radiator 2 by water return pipeline 18.In cooler for recycled exhaust gas pipeline 25 On be provided with water bypass pipe 24, the water bypass pipe 24 in the cooling water of ERG cooler pipeline 25 for will be introduced into It is imported in cooling water pipeline 20 after being cooled down in Gas Cooler 6 to air inlet.
It is provided with solenoid valve 14 on engine oil pipeline 15, is used to open or closes engine oil pipeline 15.In machine oil bypass 16 It is provided with solenoid valve 13, for being used to open or closing machine oil bypass 16.Cooler for recycled exhaust gas pipeline 25 is provided with solenoid valve 11 and is used for Open or close cooler for recycled exhaust gas pipeline 25.Water bypass pipe 24 is provided with solenoid valve 12 and is used to open or water bypass pipe 24.Above-mentioned solenoid valve 11,12,13,14 is electrically connected on ECU3.ECU3 is according to the above-mentioned solenoid valve of demand control of engine 3 11,12,13,14 open or close.
Electric engineering car often needs to powerful output in execution task, is needed at this time using turbocharger operation, To improve the torque output of engine.However in electric engineering car cruise, it is usually only necessary to output powered by conventional energy, is not required to High-power output is wanted, at this point, optimal operating method is that turbocharger is in off position, directly side is vented and passes through turbine Booster enters exhaust after treatment system.Turbocharger can be improved the power output of engine, but due to turbocharger Use need lubricating oil to be cooled down, therefore improve the temperature of lubricating oil.It needs to carry out lubricating oil additional heat dissipation.This It is unfavorable for the thermal stability of system.Therefore, intermittently using turbocharger be very it is necessary to.
In the present invention, when ECU detects that engine needs high-power, large torque output, such as electric engineering car When carrying out trailer, lifting task, the exhaust of ECU3 control engine 1 is initially entered in the turbine 9 of turbocharger, drives whirlpool Wheel booster works, and is then discharged using exhaust after treatment system 19.At this point, ECU3 controls solenoid valve 12 and electricity simultaneously Magnet valve 13 is opened, and solenoid valve 11 and solenoid valve 14 are closed.In this way, since the solenoid valve 13 of machine oil bypass 16 is opened, and machine oil Solenoid valve 14 on pipeline 15 is closed, therefore lubricating oil first passes around the shaft coupling 8 of turbocharger to turbocharger progress After lubrication and cooling, enter in engine 1 using engine oil pipeline 15 and engine is lubricated and is cooled down, finally passes through machine oil Drainback passage 17 returns in oil filter 51.At the same time, due to the compressor of turbocharger 10 to inlet air into Compression is gone, therefore compressed intake air temperature is greatly improved, therefore, ECU3 controls cooler for recycled exhaust gas pipeline at this time Solenoid valve 11 on 25 is closed, and the solenoid valve 12 on water bypass pipe 24 is opened, and cooling water will be cooling in cooling EGR at this time Charge air cooler 6 is further cooled down after device 7, is then imported again in cooling supply mains 20.As a result, when the output of engine 3 increases When, turbocharger and exhaust gas recycling use simultaneously, cooling water at the same to turbocharger and compressed air with follow again The gaseous mixture of ring exhaust gas is cooled down, and is effectively met the cooling requirement of engine, is improved engine efficiency and thermostabilization Property.
When engine 3 is in cruising rating, when such as normally travel, the exhaust of EUC3 control at this time is without turbocharging Device is directly entered exhaust aftertreatment device 19.Since turbocharger does not work, do not need at this time to turbocharger into Row is cooling and lubricates, and the solenoid valve 13 that ECU3 is controlled in machine oil bypass 16 is closed, and the solenoid valve 14 on engine oil pipeline 15 is opened, Lubricating oil is directly entered in engine 1 and engine is cooled down and lubricated at this time, to improve the cooling efficiency of engine. Simultaneously because turbocharger does not work, therefore does not need the cooling for carrying out total power to charge air cooler 6, ECU3 is controlled at this time The solenoid valve 11 of cooler for recycled exhaust gas pipeline 25 is opened, while the solenoid valve 12 for controlling water bypass pipe 24 is also opened, such part Cooling water cools down charge air cooler 6, and cooling water directly side in part is directly entered cooling water by charge air cooler 6 In general pipeline 20.Thus the temperature of cooling water will not Sheng get Tai Gao, preferably engine 1 can be lubricated.Preferably at one Embodiment in, the solenoid valve 11 that ECU3 controls cooler for recycled exhaust gas pipeline 25 is opened, while controlling the electromagnetism of water bypass pipe 24 Valve 12 is closed, and cooling water is directly other to be directly entered in cooling supply mains 20 by charge air cooler 6, charge air cooler 6 only according to It is cooled down by atmospheric air.Cooling water can not carry out air inlet cooling and directly cool down to engine 1 as a result, save Cooling capacity is saved.
When engine does not need high-power operation, whether lubricating oil or cooling water are all preferable through less underground heat Component, " direct " cool down engine, and thus the cooling efficiency of engine of the invention gets a promotion.
And when engine need high-power operation when, cooling system of the invention can effectively to turbocharger and into Gas is cooled down, and the cooling requirement between each thermal part of balanced engine improves the cooling efficiency of system on the whole.
Although having been combined embodiment to be described in detail the present invention, it should be understood by those skilled in the art that Ground is that the present invention is not limited only to specific embodiment, on the contrary, becoming in the various amendments without departing from the application spirit and essence Shape and replacement are all fallen among the protection scope of the application.

Claims (4)

1. a kind of cooling system of electric engineering car, including engine, the engine configuration has turbocharger, the turbine Booster includes turbine, shaft coupling and compressor;The exhaust end of the engine is managed configured with ERG, for by engine Portion introduce ERG cooler, by ERG cooler exhaust gas after cooling further with the compression after the compressor compresses It is entered in charge air cooler and is cooled down by compressed air escape pipe after air mixing, then pass through inlet manifold together again Into the inlet end of engine, the charge air cooler is arranged on the inlet manifold;Further include oil cooled system, is used for The turbocharger and engine are lubricated;It further include water cooling system, for cooling to oil cooled system and EGR Device is cooled down;It is characterized in that, being additionally provided with exhaust pipe before the turbocharger, it is introduced directly into for that will be vented Exhaust after treatment system and without the turbocharger;The oil cooled system includes machine oil refrigerating module and machine oil pipe Road, the machine oil refrigerating module is for being filtered and cooling down to lubricating oil, and the engine oil pipeline is for exporting filtering and cooling Lubricating oil afterwards is arranged organic oil on the engine oil pipeline and bypasses, and solenoid valve is provided in machine oil bypass, for that will filter It is imported in the shaft coupling with lubricating oil after cooling, turbocharger is cooled down;Or lubrication oil bypass was crossed into institute It states turbocharger and is directly entered in the engine, it further includes machine oil that the engine, which is in fluid communication, in the engine oil pipeline Drainback passage, for will lubricate and cooling engine after lubricating oil back in machine oil refrigerating module;The cooling mould of the machine oil Block includes oil filter and oil cooler, and the oil cooler includes cooling core, and the oil filter is double filterings Device form, wherein first filter is used to be filtered the lubricating oil that engine conveying comes, and the cooling core is for receiving the The filtered lubricating oil of one filter, cooling core lubricating oil after cooling for after being filtered by the second filter again It is output in engine oil pipeline;When ECU detects that engine needs high-power, large torque output, the ECU controls the whirlpool Booster work is taken turns, while controlling the solenoid valve on the solenoid valve and water bypass pipe that machine oil bypasses and opening, while controlling EGR Solenoid valve on solenoid valve and engine oil pipeline on cooler pipeline is closed;When to detect that engine does not need high-power, big by ECU When the output of torque, the ECU controls the excessively described turbocharger of exhaust bypass, while the solenoid valve for controlling machine oil bypass closes It closes, the solenoid valve controlled on the solenoid valve and engine oil pipeline on cooler for recycled exhaust gas pipeline is opened;Solenoid valve on water bypass pipe Selection closes or opens.
2. the cooling system of electric engineering car as described in claim 1, it is characterised in that: the water cooling system can will be cold But water introduces or side passes through the charge air cooler.
3. the cooling system of electric engineering car as claimed in claim 2, which is characterized in that the water cooling system includes water Pump further includes EGR for that will be introduced into the machine oil refrigerating module and cooler for recycled exhaust gas by radiator cooling water after cooling Cooler pipeline, for that cooling water will import in cooling supply mains after cooler for recycled exhaust gas, the cooling supply mains, which imports, to start It further include water return pipeline in machine, for returning to cooling water in the radiator;It is arranged on the cooler for recycled exhaust gas pipeline There is water bypass pipe, the water bypass pipe is right in charge air cooler for will be introduced into the cooling water of cooler for recycled exhaust gas pipeline Air inlet imports in the cooling supply mains after carrying out cooling.
4. the cooling system of electric engineering car as claimed in claim 3, which is characterized in that be provided on the engine oil pipeline Solenoid valve is used to open or closes engine oil pipeline;It is also equipped with solenoid valve in machine oil bypass, is used to open or closes machine Oil bypass;It is provided with solenoid valve on cooler for recycled exhaust gas pipeline and is used to open or closes cooler for recycled exhaust gas pipe;By the cooling water Siphunculus is provided with that solenoid valve is used to open or water bypass pipe, above-mentioned all solenoid valves are electrically connected on ECU, the ECU According to opening or closing for the above-mentioned all electromagnetism of the demand control of engine.
CN201610614225.5A 2016-07-29 2016-07-29 A kind of cooling system of electric engineering car Active CN106224082B (en)

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CN201610614225.5A CN106224082B (en) 2016-07-29 2016-07-29 A kind of cooling system of electric engineering car

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CN201610614225.5A CN106224082B (en) 2016-07-29 2016-07-29 A kind of cooling system of electric engineering car

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CN204344190U (en) * 2014-11-13 2015-05-20 北汽福田汽车股份有限公司 Motor and there is the vehicle of this motor
CN104641085A (en) * 2012-09-21 2015-05-20 戴姆勒股份公司 Method for operating an internal combustion engine, in particular an Otto engine, having at least one inlet valve

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Publication number Priority date Publication date Assignee Title
US20140298803A1 (en) * 2013-04-04 2014-10-09 Electro-Motive Diesel, Inc Pre-lubrication and soak-back system for a machine
CN203702328U (en) * 2014-01-02 2014-07-09 宁波威孚天力增压技术有限公司 Turbocharging system capable of controlling oil inlet of lubricating oil
GB201401704D0 (en) * 2014-01-31 2014-03-19 Cummins Ltd Turbocharger system
CN203978589U (en) * 2014-06-27 2014-12-03 长城汽车股份有限公司 A kind of coolant circulation system of motor and vehicle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104641085A (en) * 2012-09-21 2015-05-20 戴姆勒股份公司 Method for operating an internal combustion engine, in particular an Otto engine, having at least one inlet valve
CN103334820A (en) * 2013-07-15 2013-10-02 西华大学 Thermal control system and method of automobile engine
CN204344190U (en) * 2014-11-13 2015-05-20 北汽福田汽车股份有限公司 Motor and there is the vehicle of this motor

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