CN105697189B - System and control method for increasing energy utilization rate of EGR engine - Google Patents
System and control method for increasing energy utilization rate of EGR engine Download PDFInfo
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- CN105697189B CN105697189B CN201610195051.3A CN201610195051A CN105697189B CN 105697189 B CN105697189 B CN 105697189B CN 201610195051 A CN201610195051 A CN 201610195051A CN 105697189 B CN105697189 B CN 105697189B
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- heat exchanger
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- exhaust
- electromotor
- cooling water
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
- F02G5/02—Profiting from waste heat of exhaust gases
- F02G5/04—Profiting from waste heat of exhaust gases in combination with other waste heat from combustion engines
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- 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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00792—Arrangement of detectors
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- 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
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
- B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
- B60H1/00885—Controlling the flow of heating or cooling liquid, e.g. valves or pumps
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G2260/00—Recuperating heat from exhaust gases of combustion engines and heat from cooling circuits
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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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Exhaust-Gas Circulating Devices (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a system and control method for increasing the energy utilization rate of an EGR engine. A power transmission system comprises the engine. One part of exhaust gas exhausted out of the engine passes through an exhaust gas turbocharging system, a secondary heat exchanger and an exhaust aftertreatment system, and the other part of the exhaust gas passes through an exhaust gas recirculating system. An engine cooling system treats cooling water of the engine and meanwhile is connected with a cab heating assembly. The temperature collected by a temperature sensor is received by a signal collection system and sent to a data analysis execution system. A bottom circulating system carries out multistage heating on a circulating work medium with the cooling water of the engine, engine exhaust and heat energy in the exhaust gas recirculating system as a heat source and then expands in an expander to do work, a generator coaxial with the expander is driven for power generation, generated electric energy is stored in a storage battery, and conversion from heat energy to chemical energy is completed. The chemical energy which is released during combustion of fuel oil and not converted into mechanical energy by the engine is utilized to the maximum extent by means of bottom circulating.
Description
Technical field
The present invention relates to technical field of internal combustion engines, more particularly to a kind of system for improving EGR engine energy utilization rate and
Control method.
Background technology
Waste gas recirculation (Exhaust Gas Recirculation, EGR) refers to that electromotor will discharge a part for gas
Isolating, and import air inlet side makes the technology which burns once again.Rankine cycle refers to that the one kind using vapor as working medium is preferable
Cyclic process, mainly including isentropic Compression, isobaric heating, constant entropy expansion and an isobaric condensation process.
It is well known that the energy produced by common engine fuel combustion only about 30% can be converted into machinery
Work(, the effective efficiency of most advanced diesel engine are less than 45%, but still have most energy to be taken away by high-temp waste gas and cooling water,
It is discharged in air, causes energy loss.From from energy figure, diesel exhaust gas temperature reaches 600 DEG C, and gasoline engine row's temperature is reachable
To 700 DEG C, the exhaust energy in electromotor is still with the quality that comparison is high.Therefore, this part energy is reclaimed by Rankine cycle
Amount, becomes and realizes vehicle energy saving, improves vehicle effective energy utilization rate and reduces an approach of carbon emission.
At present, the method for improving capacity usage ratio is mostly simply to install a heat exchanger after exhaustor additional, what this brought
Problem is：If size of heat exchanger is too little, the cycle fluid of Rankine cycle can not sufficiently absorb heat, reach superheat state；
If size of heat exchanger is too big, the rising of engine exhaust back pressure is may result in, increase the load of electromotor, reduce electromotor
The thermal efficiency.And in the electromotor equipped with gas recirculation system (EGR) system, generally require in exhaustor and compressor
Between increase a middle device for cooling, reduce EGT, this part of energy also wastes.Accordingly, it would be desirable to pass through right
The exhaust energy of electromotor is reasonably made full use of.
The content of the invention
The purpose of the present invention is exactly to solve the above problems, there is provided it is a kind of improve EGR engine energy utilization rate be
System and control method, the system are burnt using fuel oil to greatest extent by bottoming cycle in the case of engine work
That a part of chemical energy released but that mechanical energy is not converted to by electromotor.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of system for improving EGR engine energy utilization rate, including power drive system, the power drive system bag
Include electromotor；The a part of Jing exhaust turbocharging systems of waste gas, secondary heat exchanger and exhaust aftertreatment that the electromotor is discharged
System is discharged to air, and another part carries out new circulation into electromotor with fresh air Jing after gas recirculation system；Start
Also heat assembly with driver's cabin while machine cooling system processes the cooling water of electromotor to be connected；Signal acquiring system connects
By the temperature that temperature sensor is gathered, and give data analysiss execution system and processed；
Bottom cycle system using the heat energy in engine cooling water, engine exhaust and gas recirculation system as thermal source,
Multi-stage heating is carried out to cycle fluid, is allowed to fully absorb heat, subsequently the expansion work in expansion apparatuss, driven same with expansion apparatuss
The electromotor of axle is generated electricity, and the electrical power storage for sending in accumulator, completes heat energy to chemical transformation of energy.
The power drive system also includes change speed gear box, retarder and the driving being sequentially connected by power transmission shaft with electromotor
Bridge.
The bottom cycle system include by pipeline circulate successively the transfer tube of connection, first-class heat exchanger, secondary heat exchanger,
Three-level heat exchanger, expansion apparatuss and condenser；The expansion apparatuss are connected by power transmission shaft with electromotor.
Connecting line between the transfer tube and first-class heat exchanger is provided with bottoming cycle just temperature sensor；The three-level is changed
Connecting line between hot device and expansion apparatuss is provided with bottoming cycle final temperature sensor, all of temperature sensor with the data
Acquisition system connects, and data collecting system is connected with the data analysiss execution system；Data analysiss execution system and transfer tube
Switch electrical connection.
The exhaust turbocharging system includes exhaust-driven turbo-charger exhaust-gas turbo charger, and the compressor air inlet machine end of exhaust-driven turbo-charger exhaust-gas turbo charger leads to
Cross air pipe line to be connected with air inlet pipe, outlet side is connected with intercooler and motor intake manifold successively by air pipe line
Connect；
The turbine inlet end of exhaust-driven turbo-charger exhaust-gas turbo charger is connected by air pipe line with enmgine exhaust, outlet side
It is connected by air pipe line with the secondary heat exchanger of engine aftertreatment system and bottom cycle system.
The waste gas of the gas recirculation system from enmgine exhaust, then by air pipe line Jing bottoming cycles system
The three-level heat exchanger of system, into the inlet end of exhaust-driven turbo-charger exhaust-gas turbo charger compressor.
The engine-cooling system include by cooling water pipeline circulate successively the cooling water tank of connection, cooling water pump,
Electromotor, driver's cabin heat assembly, the first-class heat exchanger of bottom cycle system and engine radiator.
The connecting line that the electromotor and driver's cabin are heated between assembly is provided with coolant temperature sensor；The driving
Room heats assembly and is provided with cabin temperature sensor；The driver's cabin heats the connecting line between assembly and bottom cycle system
One-level coolant temperature sensor is provided with, all of temperature sensor is connected with data collecting system, the data acquisition system
System is connected with data analysiss execution system；The data analysiss execution system heats the three-way magnetic valve and of assembly with driver's cabin
The three-way magnetic valve connection of level heat exchanger.
A kind of control method for improving EGR engine energy utilization rate, comprises the following steps：
S201：When bottoming cycle is carried out, the temperature of the transfer tube port of export and the as received basis positioned at first-class heat exchanger front end is detected
The temperature of degree and cooling water, passes to data analysiss execution system；
S202：The two temperature are contrasted by data analysiss execution system；If differing by more than setting value, data analysiss
Execution system sends instruction to two three-way magnetic valves of first-class heat exchanger, and electromagnetic valve is located at the unobstructed state of heat exchanger；Otherwise not
Heat exchange is carried out in first-class heat exchanger, S204 is directly carried out；
S203：Cycle fluid carries out heat exchange with cooling water in first-class heat exchanger；
S204：Cycle fluid carries out heat exchange, cycle fluid heat absorption in secondary heat exchanger and three-level heat exchanger；
S205：Judge as received basis temperature whether more than saturation temperature：If it has, then explanation as received basis has reached saturation or mistake
Saturation；If it is otherwise, explanation as received basis heat absorption is inadequate, current working is not suitable for carrying out bottoming cycle, system halt setting time
Afterwards, re-start S201；
S206：Cycle fluid does work to expansion apparatuss, heat release within the condenser；
S207：Determine whether to shut down request, if it has, then loop ends；If it has not, then carrying out to S201 next new
Circulation.
Also include, in colder weather condition downward driving, driver selects opening vehicle to heat to vehicle according to their needs
System, detects the cooling water temperature of engine cool water out and drives indoor temperature, pass to data analysiss execution system；
If cooling water temperature exceedes setting value higher than cabin temperature, data analysiss execution system is heated always to driver's cabin
Into three-way magnetic valve and driver's cabin radiator fan send instruction, three-way magnetic valve is transformed into radiator state, and radiator fan is beaten
Open, now cooling water flows through radiator, forced heat-exchanging is carried out in the presence of radiator fan, improve and drive indoor temperature；Otherwise,
Three-way magnetic valve is located at flow tube state, and radiator fan cuts out, and is heated using electromotor direct drive air-conditioning.
Beneficial effects of the present invention：
The present invention is made cycle fluid flow through three heat exchangers and is absorbed heat, finally using the bottoming cycle based on Rankine cycle
Superheated steam state is reached, the expansion work in expansion apparatuss drives electrical power generators, realization to convert heat energy into electric energy, and will
Which is stored in accumulator.
The present invention can directly be such that cooling water enters with cabin air to heat to driver's cabin according to driver intention
Row forced heat-exchanging, raises cabin temperature, reduces the use of air-conditioning, also avoid air-conditioning to a certain extent and environment is broken
It is bad.
Present configuration is simple, and existing vehicle is capable of achieving by simple refit, and does not cause shadow to original vehicle performance
Ring, energy utilization rate can be improved, promote energy-saving and emission-reduction.
Description of the drawings
Accompanying drawing 1 is that invention system is circulated and structure principle chart.
The control strategy flow chart of 2 invention system circulations of accompanying drawing.
Wherein, 1 electromotor, 2 change speed gear boxes, 3 coolant temperature sensors, 4 retarders, 5 drive axles, 6 three-way magnetic valves, 7 are driven
Sail room heat assembly, 8 cabin temperature sensors, 9 secondary heat exchangers, 10 one-level coolant temperature sensors, 11 first-class heat exchangers,
Just temperature sensor, 14 transfer tubes, 15 data analysiss execution systems, 16 data acquisitions of 12 engine aftertreatment systems, 13 bottoming cycles
System, 17 condensers, 18 three-level heat exchangers, 19 electromotors, 20 expansion apparatuss, 21 engine radiators, 22 bottoming cycle final temperatures sensing
Device, 23 cooling water tanks, 24 exhaust-driven turbo-charger exhaust-gas turbo chargers, 25 charge air coolers, 26 cooling water pumps.
Specific embodiment
Specific embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
A kind of system for improving EGR engine energy utilization rate, including：Power drive system, exhaust turbocharging system,
Gas recirculation system, gas extraction system, engine-cooling system, bottom cycle system and signal acquisition process execution system.
Power drive system includes electromotor 1, change speed gear box 2, retarder 4 and the drive axle 5 being sequentially connected by power transmission shaft.
Exhaust turbocharging system includes that compressor air inlet machine end and the air inlet pipe of exhaust-driven turbo-charger exhaust-gas turbo charger 24 pass through air hose
Road is connected, and outlet side is sequentially connected by air pipe line with intercooler 25 and 1 inlet manifold of electromotor；Exhaust gas turbine increases
The turbine inlet end of depressor 24 is connected by air pipe line with 1 exhaust manifold of electromotor, and outlet side is started with electromotor 1
Machine after-treatment system 12 is connected by air pipe line with bottoming cycle secondary heat exchanger 9；
The waste gas of gas recirculation system is exchanged heat by air pipe line Jing bottoming cycles three-level from 1 exhaust manifold of electromotor
Device 18, into the inlet end of 24 compressor of exhaust-driven turbo-charger exhaust-gas turbo charger；
Engine-cooling system include by cooling water pipeline circulate successively the cooling water tank 23 of connection, cooling water pump 26,
Electromotor 1, driver's cabin heats assembly 7, bottoming cycle first-class heat exchanger 11, engine radiator 21 etc.；Electromotor 1 and driver's cabin system
Connecting line between hot assembly 7 is provided with coolant temperature sensor 3；The driver's cabin heats assembly 7 and is provided with driving room temperature
Degree sensor 8；The driver's cabin heats the connecting line between assembly 7 and bottoming cycle and is provided with one-level coolant temperature sensor
10；
Bottom cycle system includes that circulating the transfer tube 14 of connection, bottoming cycle first-class heat exchanger 11, bottom successively by pipeline follows
Ring secondary heat exchanger 9, bottoming cycle three-level heat exchanger 18, expansion apparatuss 20, condenser 17 etc.；The transfer tube 14 and first-class heat exchanger
Connecting line between 11 is provided with bottoming cycle just temperature sensor 13；Connection between the three-level heat exchanger 18 and expansion apparatuss 20
Pipeline is provided with bottoming cycle final temperature sensor 22；The expansion apparatuss 20 are connected by power transmission shaft with high-speed engine 19；
Coolant temperature sensor 3 gathers from electromotor the real time temperature of the cooling water for flowing out；Cabin temperature sensor 8 is adopted
The temperature of collection driver's cabin；After the collection driver's cabin of one-level coolant temperature sensor 10 heats assembly 7, before first-class heat exchanger 11
Water temperature；The temperature of the circulatory mediator that the first collection of temperature sensor 13 transfer tube 14 of bottoming cycle is pumped out；Bottoming cycle final temperature sensor 22 is adopted
Final temperature after collection circulatory mediator Jing three-levels heat exchange 18；
Coolant temperature sensor 3, cabin temperature sensor 8, one-level coolant temperature sensor 10, bottoming cycle initial temperature sensing
Device 13, bottoming cycle final temperature sensor 22 are connected with data collecting system 16；The data collecting system 16 is held with data analysiss
Row system 15 connects；The data analysiss execution system 15 and bottoming cycle transfer tube 14 are switched, driver's cabin heats the threeway of assembly 7
The three-way magnetic valve connection of electromagnetic valve 6 and bottoming cycle first-class heat exchanger 11；
In the course of the work, cooling water is transported to electromotor 1 from cooling water tank 23 to electromotor 1 by cooling water pump 26, with
Body enters radiating link after being exchanged heat, next circulation is entered in being eventually returned to cooling water tank 23.The aerofluxuss of electromotor 1
It is divided into two parts, is partly into exhaust-driven turbo-charger exhaust-gas turbo charger 24, expansion work (calms the anger for driving by this part work(in the turbine
Machine compression will enter the gaseous mixture of the fresh air and EGR exhaust of electromotor), then Jing exhaust after treatment system and two grades are changed
Hot device 9 is entered in air.
In bottoming cycle, cycle fluid flows in the presence of transfer tube 14, and absorbing heat in three heat exchangers ultimately forms
Superheated steam, superheated steam expansion work in high speed expansion apparatuss 20 drive turbine rotation, finally the condensed device of remaining weary gas
17 heat releases form unsaturated liquid and enter next circulation.In the process, turbine rotation drives electrical power generators, and electric energy is stored up
Exist in accumulator.Thermal energy collecting originally to be slatterned is converted into into available electric energy in this circulation using the system.
The present invention is released using fuel oil burning to greatest extent by bottoming cycle in the case of engine work
But that a part of chemical energy of mechanical energy is not converted to by electromotor.The bottoming cycle with engine cooling water, engine exhaust and
Heat energy in gas recirculation system (EGR) carries out Multi-stage heating to cycle fluid as thermal source, is allowed to fully absorb heat,
Subsequently the expansion work in expansion apparatuss, drives the electromotor coaxial with expansion apparatuss to be generated electricity, and the electrical power storage for sending is existed
In accumulator, heat energy is completed to chemical transformation of energy.Additionally, the system and method can also be realized in cold snap to driver's cabin
The function of being heated.
A kind of control method for improving EGR engine energy utilization rate, comprises the following steps：
S201：When bottoming cycle is carried out, positioned at the first temperature sensor of the transfer tube port of export and in front of first-class heat exchanger
One-level coolant temperature sensor respectively by the temperature Jing signal acquiring system of the temperature and cooling water of now as received basis, pass to
Data analysiss execution system；
S202：The two temperature are contrasted by data analysiss execution system；If differing by more than 10% (artificially to set
It is fixed, it is not limited to herein 10%), data analysiss execution system sends finger to two three-way magnetic valves of first-class heat exchanger
Order, electromagnetic valve are located at the unobstructed state of heat exchanger；Otherwise heat exchange is not carried out in first-class heat exchanger, directly skip next step
S203, carries out S204；
S203：Cycle fluid carries out heat exchange with cooling water in first-class heat exchanger；
S204：Cycle fluid carries out heat exchange, cycle fluid heat absorption in two grades, three-level heat exchanger；
S205：Judge as received basis temperature whether more than saturation temperature：If it has, then explanation as received basis has reached saturation or mistake
Saturation；If it is otherwise, explanation as received basis heat absorption is inadequate, current working is not suitable for carrying out bottoming cycle, and system halt 5 minutes (can
It is manually set, it is not limited to 5 minutes herein) after, re-start S201；
S206：Cycle fluid does work to expansion apparatuss, heat release within the condenser；
S207：Determine whether to shut down request, if it has, then loop ends；If it has not, then carrying out to S201 next new
Circulation.
In colder weather condition downward driving, driver can select to open vehicle heating vehicle according to their needs,
Be now placed in engine cool water out temperature sensor and drive indoor temperature sensor respectively by cooling water temperature and
Drive indoor temperature Jing data collecting system and pass to data analysiss execution system.If cooling water temperature is higher than cabin temperature ten
Degree (can be manually set, it is not limited to ten degree herein), then data analysiss execution system heats the threeway of assembly to driver's cabin
Electromagnetic valve and driver's cabin radiator fan send instruction, and electromagnetic valve is transformed into radiator state, and fan is opened, and now cooling water is flowed through
Radiator, carries out forced heat-exchanging in the presence of radiator fan, improves and drives indoor temperature.Otherwise, electromagnetic valve is located at flow tube
State, fan are closed, and are heated using electromotor direct drive air-conditioning.
Although the above-mentioned accompanying drawing that combines is described to the specific embodiment of the present invention, not to present invention protection model
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
The various modifications made by needing to pay creative work or deformation are still within protection scope of the present invention.
Claims (9)
1. it is a kind of improve EGR engine energy utilization rate control method, it is characterized in that, bottom cycle system include by pipeline according to
Transfer tube, first-class heat exchanger, secondary heat exchanger, three-level heat exchanger, expansion apparatuss and condenser that secondary circulation connects；The expansion apparatuss
It is connected by power transmission shaft with electromotor；Control method is comprised the following steps：
S201：When bottoming cycle is carried out, detect the transfer tube port of export and positioned at first-class heat exchanger front end as received basis temperature and
The temperature of cooling water, passes to data analysiss execution system；
S202：The two temperature are contrasted by data analysiss execution system；If differing by more than setting value, data analysiss are performed
System sends instruction to two three-way magnetic valves of first-class heat exchanger, and electromagnetic valve is located at the unobstructed state of heat exchanger；Otherwise not one
Heat exchange is carried out in level heat exchanger, S204 is directly carried out；
S203：Circulation as received basis carries out heat exchange with cooling water in first-class heat exchanger；
S204：Circulation as received basis carries out heat exchange, circulation as received basis heat absorption in secondary heat exchanger and three-level heat exchanger；
S205：Judge as received basis temperature whether more than saturation temperature：If it has, then explanation as received basis has reached saturation or supersaturation
State；If it is otherwise, explanation as received basis heat absorption is inadequate, current working is not suitable for carrying out bottoming cycle, after system halt setting time,
Re-start S201；
S206：Circulation work confrontation expansion apparatuss acting, within the condenser heat release；
S207：Determine whether to shut down request, if it has, then loop ends；If it has not, then carrying out next new follow to S201
Ring.
2. a kind of control method for improving EGR engine energy utilization rate as claimed in claim 1, is characterized in that, also include,
In colder weather condition downward driving, driver selects to open vehicle heating vehicle according to their needs, detects electromotor
The indoor temperature of the cooling water temperature of coolant outlet and driving, passes to data analysiss execution system；
If cooling water temperature exceedes setting value higher than cabin temperature, data analysiss execution system heats assembly to driver's cabin
Three-way magnetic valve and driver's cabin radiator fan send instruction, and three-way magnetic valve is transformed into radiator state, and radiator fan is opened, this
When cooling water flow through radiator, carry out forced heat-exchanging in the presence of radiator fan, improve and drive indoor temperature；Otherwise, threeway
Electromagnetic valve is located at flow tube state, and radiator fan cuts out, and is heated using electromotor direct drive air-conditioning.
3. using a kind of raising EGR engine energy utilization rate described in claim 1 control method system, its feature
It is that, including power drive system, the power drive system includes electromotor；The a part of Jing of waste gas that the electromotor is discharged gives up
After air turbine pressure charging system, secondary heat exchanger and exhaust after treatment system, row is to air, another part Jing gas recirculation systems
New circulation is carried out into electromotor with fresh air afterwards；It is same that engine-cooling system is processed to the cooling water of electromotor
When also heat assembly with driver's cabin and be connected；Signal acquiring system receives the temperature of temperature sensor collection, and gives data analysiss
Execution system is processed；
Bottom cycle system using the heat energy in engine cooling water, engine exhaust and gas recirculation system as thermal source, to following
Ring as received basis carries out Multi-stage heating, is allowed to fully absorb heat, subsequently the expansion work in expansion apparatuss, drives coaxial with expansion apparatuss
Electromotor generated electricity, and the electrical power storage for sending in accumulator, complete heat energy to chemical transformation of energy.
4. system as claimed in claim 3, is characterized in that, the power drive system also includes passing through power transmission shaft with electromotor
Change speed gear box, retarder and the drive axle being sequentially connected.
5. system as claimed in claim 3, is characterized in that, set on the connecting line between the transfer tube and first-class heat exchanger
There is bottoming cycle just temperature sensor；Connecting line between the three-level heat exchanger and expansion apparatuss is provided with bottoming cycle final temperature sensing
Device, all of temperature sensor are connected with the data collecting system, and data collecting system performs system with the data analysiss
System connection；Data analysiss execution system is electrically connected with switch pump is driven.
6. system as claimed in claim 3, is characterized in that, the exhaust turbocharging system includes exhaust-driven turbo-charger exhaust-gas turbo charger,
The compressor air inlet machine end of exhaust-driven turbo-charger exhaust-gas turbo charger is connected with air inlet pipe by air pipe line, and outlet side is by air pipe line and increasing
Pressure charge air cooler and motor intake manifold are sequentially connected；
The turbine inlet end of exhaust-driven turbo-charger exhaust-gas turbo charger is connected by air pipe line with enmgine exhaust, outlet side with send out
Motivation after-treatment system is connected by air pipe line with the secondary heat exchanger of bottom cycle system.
7. system as claimed in claim 6, is characterized in that, the waste gas of the gas recirculation system is from engine exhaust discrimination
Pipe, then by the three-level heat exchanger of air pipe line Jing bottom cycle systems, into the inlet end of exhaust-driven turbo-charger exhaust-gas turbo charger compressor.
8. system as claimed in claim 3, is characterized in that, the engine-cooling system is included by cooling water pipeline successively
The cooling water tank of circulation connection, cooling water pump, electromotor, driver's cabin heat assembly, the first-class heat exchanger of bottom cycle system and send out
Motivation radiator.
9. system as claimed in claim 8, is characterized in that, the electromotor and driver's cabin heat the connecting line between assembly
It is provided with coolant temperature sensor；The driver's cabin heats assembly and is provided with cabin temperature sensor；The driver's cabin is heated
Connecting line between assembly and bottom cycle system is provided with one-level coolant temperature sensor, all of temperature sensor with number
Connect according to acquisition system, the data collecting system is connected with data analysiss execution system；The data analysiss execution system with
Driver's cabin heats the three-way magnetic valve connection of the three-way magnetic valve and first-class heat exchanger of assembly.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195051.3A CN105697189B (en) | 2016-03-31 | 2016-03-31 | System and control method for increasing energy utilization rate of EGR engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610195051.3A CN105697189B (en) | 2016-03-31 | 2016-03-31 | System and control method for increasing energy utilization rate of EGR engine |
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| CN105697189B true CN105697189B (en) | 2017-05-03 |
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| CN107605619A (en) * | 2017-09-04 | 2018-01-19 | 安徽江淮汽车集团股份有限公司 | Engine exhaust heat two-way staged retracting device, control method and control system |
| CN110985230B (en) * | 2019-12-16 | 2021-03-16 | 西安交通大学 | Automobile waste heat recycling system and operation method thereof |
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| KR20100037994A (en) * | 2008-10-02 | 2010-04-12 | 현대자동차주식회사 | Heater for vehicle and controlling method using the same |
| CN103726949B (en) * | 2013-12-27 | 2015-06-24 | 天津大学 | Double-pressure double-loop multistage-expansion internal combustion engine waste heat recovery system |
| CN203978644U (en) * | 2014-07-23 | 2014-12-03 | 山东大学 | Automatically controlled servo pressure-regulating formula natural gas engine auxiliary fuel supply-system |
| CN205400924U (en) * | 2016-03-31 | 2016-07-27 | 山东大学 | System for it rates to improve EGR engine energy utilization |
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