CN114183238A - Control system matched with supercharger and motor - Google Patents
Control system matched with supercharger and motor Download PDFInfo
- Publication number
- CN114183238A CN114183238A CN202111506338.0A CN202111506338A CN114183238A CN 114183238 A CN114183238 A CN 114183238A CN 202111506338 A CN202111506338 A CN 202111506338A CN 114183238 A CN114183238 A CN 114183238A
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- CN
- China
- Prior art keywords
- generator
- motor
- engine
- turbine
- control system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 19
- 238000011084 recovery Methods 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 14
- 239000002912 waste gas Substances 0.000 abstract description 7
- 239000000446 fuel Substances 0.000 abstract description 5
- 230000004044 response Effects 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 description 10
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
- F02B37/10—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump at least one pump being alternatively or simultaneously driven by exhaust and other drive, e.g. by pressurised fluid from a reservoir or an engine-driven pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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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
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/14—Control of the alternation between or the operation of exhaust drive and other drive of a pump, e.g. dependent on speed
-
- 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
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/02—Drives of pumps; Varying pump drive gear ratio
- F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
- F02B39/10—Non-mechanical drives, e.g. fluid drives having variable gear ratio electric
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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
- F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
- F02B41/02—Engines with prolonged expansion
- F02B41/10—Engines with prolonged expansion in exhaust turbines
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/143—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with multiple generators
-
- 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
Abstract
The invention aims to provide a control system matched with a supercharger and a motor, which comprises an engine, a turbine and a gas compressor, wherein an exhaust pipe of the engine is connected with the turbine, an air inlet pipe of the engine is connected with the gas compressor, the turbine and the gas compressor are coaxial, the control system also comprises a lithium battery pack, a power turbine, a generator and a motor/generator, the turbine is connected with the power turbine, the lithium battery pack is connected with the motor/generator through a first controller, the lithium battery pack is connected with the generator through a second controller, the motor/generator is connected with the gas compressor through a first flexible diaphragm coupler, and the generator is connected with the power turbine through a second flexible diaphragm coupler. The invention can improve the recycling of the waste gas energy, effectively improve the phenomenon of slow response or deterioration of the working condition under low working condition in the starting stage of the engine, optimize the high working condition, recycle the waste gas energy, improve the efficiency of the whole engine and reduce the fuel consumption.
Description
Technical Field
The invention relates to an engine supercharging system, in particular to an engine supercharging control system.
Background
Engine supercharging is the increase of air pressure before the engine cylinder, i.e. the increase of charge density, to increase the mass of air entering the cylinder. The power of the internal combustion engine is increased by increasing the power per liter of the internal combustion engine. The application of supercharging technology to internal combustion engines is a breakthrough technical progress in the development process of the internal combustion engines.
The current supercharging modes are many, and mainly include four types, namely mechanical supercharging, turbocharging, composite supercharging, air wave supercharging and the like. At present, the most widely used method is turbocharging, and the turbocharging is characterized in that a mechanical coupling is not arranged between a turbocharger and an internal combustion engine and the turbocharger and the internal combustion engine are connected through an air passage. The exhaust gas discharged from the internal combustion engine is expanded by the turbine to do work and then discharged to the atmosphere, and the turbine drives the compressor to rotate, so that the power balance between the compressor and the turbine is ensured. However, the turbo-charging mode has poor acceleration performance, serious heat load problem, sensitivity to atmospheric temperature and exhaust back pressure, is mostly suitable for low-power diesel engines and gasoline engines, and develops towards high-charging direction; when the engine is in a low working condition, the energy of exhaust gas flowing to the turbine is less, and the pressure of air supplied to the combustion chamber is increased less, namely the turbine lag; the demand for electricity is increasing regardless of whether the gasoline engine or the diesel engine is used, and the problem of electricity shortage is also an important problem.
Disclosure of Invention
The invention aims to provide a control system matched with a supercharger and a motor, which can improve the energy recovery efficiency, protect the motor/generator, effectively improve the low working condition, optimize the high working condition, overcome the power reduction of the engine caused by the rarefied plateau air, improve the fuel economy, reduce the oil consumption, and have high reliability, good matching characteristic and high transient response characteristic.
The purpose of the invention is realized as follows:
the invention relates to a control system matched with a supercharger and a motor, which comprises an engine, a turbine and a gas compressor, wherein an exhaust pipe of the engine is connected with the turbine, an air inlet pipe of the engine is connected with the gas compressor, and the turbine and the gas compressor are coaxial, and the control system is characterized in that: the lithium battery pack is connected with the motor/generator through a first controller, the lithium battery pack is connected with the generator through a second controller, the motor/generator is connected with the gas compressor through a first flexible membrane coupler, and the generator is connected with the power turbine through a second flexible membrane coupler.
The present invention may further comprise:
1. when the engine is in a high working condition, the compressor rotates at a high speed to drive the motor/generator to generate electricity, electric energy is transmitted to the lithium battery pack to be stored through the energy recovery module in the first controller, the energy of turbine exhaust gas is discharged into the power turbine to do work through expansion, the generator is driven to generate electricity, and the electric energy is stored to the lithium battery pack through the energy recovery module of the second controller, so that the normal operation of the motor at the end of the compressor is protected.
2. When the engine is in a low working condition, the speed regulating module of the first controller controls the motor/generator, and the motor/generator drives the air compressor to increase speed, so that the air inflow is increased.
The invention has the advantages that: when the engine is in a starting stage or a low working condition, the speed regulating module in the controller controls the motor, the motor drives the compressor, the rotating speed is increased, the air inlet resistance is reduced, the air inlet amount is increased, the full combustion of fuel in a cylinder is facilitated, and the engine efficiency is improved; when the engine is in a high working condition, the motor is used as a generator, the energy of the waste gas is recovered through the energy recovery module in the controller and is stored in the lithium battery pack; meanwhile, excessive waste gas energy is discharged into the power turbine to drive the generator to generate electricity, the waste gas energy is further recovered, the operability is strong, and the full-range working condition matching of the diesel engine and the supercharger is realized. This turbocharging system passes through motor control system's design, can export turbine residual energy for the generator, charges for lithium cell group, avoids the waste of turbine exhaust energy, improves engine efficiency. The system matched with the supercharger and the motor can improve the recycling of the energy of the exhaust gas, effectively improve the phenomenon of slow response or deterioration of the working condition under low working condition in the starting stage of the engine, optimize the high working condition, recycle the energy of the exhaust gas, improve the efficiency of the whole engine and reduce the fuel consumption.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention will now be described in more detail by way of example with reference to the accompanying drawings in which:
with reference to fig. 1, the present invention comprises: the device comprises an engine 1, an engine air inlet pipe 2, an intercooler 3, a compressor 4, an air filter 5, a flexible diaphragm coupling I6, a motor/generator 7, a controller I8, an air filter 8, a lithium battery pack 9, a controller II10, a generator 11, a flexible diaphragm coupling II12, a power turbine 13, a turbine 14, a generator exhaust pipe 15 and the like.
The turbine 14 is connected with the engine 1 through an exhaust pipe 15, air enters the compressor 4 through the air filter 5, the compressor 4 is connected with the engine 1 through an air inlet pipe 2, and the intercooler 3 is installed on the air inlet pipe 2. The turbine 14 communicates with the power turbine 13 through a non-mechanical connection; the power turbine 13 is connected with the generator 11 through the flexible diaphragm coupler II12, so that the influence of the vibration of the power turbine on the rotating shaft of the generator rotor is reduced; the lithium battery pack 9 is connected with the generator 11 through the controller II10, part of energy released by the prior bypass air release valve is further converted into electric energy, the recovery amount of the energy is improved, the high rotating speed of the supercharger is slowed down, and the motor/generator 7 is protected; the controller II10 and the controller I8 are connected with the lithium battery pack 9 through circuits, and directly or indirectly adjust the working state of the supercharger.
The engine includes a gasoline engine or a diesel engine.
The inlet and outlet of the turbocharger are connected with the atmosphere.
The solid arrow direction in fig. 1 is the direction of gas flow, and the dotted arrow direction is the direction of electric signal/electric power transmission.
On one hand, the invention adds the motor controlled by the controller at the air inlet end of the supercharger to replace the original requirement that the air inlet amount of the air compressor is improved by the air blower, the electric energy of the motor is provided by the lithium battery pack, when the engine is started or the working condition is low, the controller has the speed regulation function to control the air compressor to work and drive the air compressor to rotate, the air inlet amount of the air compressor is increased, the air inlet resistance is reduced, the air inlet of the engine is smoother, the whole efficiency is higher, the starting performance is good, and the full combustion of the fuel in the cylinder is facilitated.
On the other hand, when the engine 1 is in a high working condition, the supercharger rotates at a high speed to drive the generator 7 to generate electricity, and the electric energy is transmitted to the lithium battery pack 9 to be stored through the energy recovery module in the controller 8; the rotating speed of the supercharger is too high under a high working condition, the working state of the motor 7 is inevitably influenced, and meanwhile, more waste gas energy is lost, the waste gas energy of the turbine 14 is discharged into the power turbine 13 to do work through expansion, the generator 11 is driven to generate electricity, and the electric energy is stored into the lithium battery pack through the energy recovery module of the controller I, so that the normal operation of the motor at the end of the compressor is protected, the energy recovery efficiency is further improved, in addition, more electric energy obtained can also be supplied to other parts for power utilization, and the problem of power utilization shortage is solved.
Claims (3)
1. A control system matched with a supercharger and a motor comprises an engine, a turbine and a gas compressor, wherein an exhaust pipe of the engine is connected with the turbine, an air inlet pipe of the engine is connected with the gas compressor, and the turbine and the gas compressor are coaxial, and is characterized in that: the lithium battery pack is connected with the motor/generator through a first controller, the lithium battery pack is connected with the generator through a second controller, the motor/generator is connected with the gas compressor through a first flexible membrane coupler, and the generator is connected with the power turbine through a second flexible membrane coupler.
2. The control system of claim 1, wherein the control system comprises: when the engine is in a high working condition, the compressor rotates at a high speed to drive the motor/generator to generate electricity, electric energy is transmitted to the lithium battery pack to be stored through the energy recovery module in the first controller, the energy of turbine exhaust gas is discharged into the power turbine to do work through expansion, the generator is driven to generate electricity, and the electric energy is stored to the lithium battery pack through the energy recovery module of the second controller, so that the normal operation of the motor at the end of the compressor is protected.
3. The control system of claim 1, wherein the control system comprises: when the engine is in a low working condition, the speed regulating module of the first controller controls the motor/generator, and the motor/generator drives the air compressor to increase speed, so that the air inflow is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111506338.0A CN114183238A (en) | 2021-12-10 | 2021-12-10 | Control system matched with supercharger and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111506338.0A CN114183238A (en) | 2021-12-10 | 2021-12-10 | Control system matched with supercharger and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114183238A true CN114183238A (en) | 2022-03-15 |
Family
ID=80543075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111506338.0A Pending CN114183238A (en) | 2021-12-10 | 2021-12-10 | Control system matched with supercharger and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114183238A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565609A (en) * | 2021-07-20 | 2021-10-29 | 潍柴动力股份有限公司 | Tail gas energy recovery system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07102989A (en) * | 1993-10-04 | 1995-04-18 | Isuzu Motors Ltd | Exhaust energy recovery device |
| CN1160434A (en) * | 1994-08-25 | 1997-09-24 | 詹姆斯·内维尔·兰德尔 | Turbocharged internal combustion engine arrangement |
| CN103912349A (en) * | 2013-01-09 | 2014-07-09 | 广西玉柴机器股份有限公司 | Engine power turbine energy recovery device |
| CN107420190A (en) * | 2017-08-28 | 2017-12-01 | 吉林大学 | A kind of whirlpool pressure separation accumulative type engine pressure charging system |
| CN109944683A (en) * | 2019-03-08 | 2019-06-28 | 哈尔滨工程大学 | Flexible electronic composite turbocharging system |
| CN111350582A (en) * | 2018-12-21 | 2020-06-30 | 通用汽车环球科技运作有限责任公司 | Multi-stage turbocharged engine system |
-
2021
- 2021-12-10 CN CN202111506338.0A patent/CN114183238A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07102989A (en) * | 1993-10-04 | 1995-04-18 | Isuzu Motors Ltd | Exhaust energy recovery device |
| CN1160434A (en) * | 1994-08-25 | 1997-09-24 | 詹姆斯·内维尔·兰德尔 | Turbocharged internal combustion engine arrangement |
| CN103912349A (en) * | 2013-01-09 | 2014-07-09 | 广西玉柴机器股份有限公司 | Engine power turbine energy recovery device |
| CN107420190A (en) * | 2017-08-28 | 2017-12-01 | 吉林大学 | A kind of whirlpool pressure separation accumulative type engine pressure charging system |
| CN111350582A (en) * | 2018-12-21 | 2020-06-30 | 通用汽车环球科技运作有限责任公司 | Multi-stage turbocharged engine system |
| CN109944683A (en) * | 2019-03-08 | 2019-06-28 | 哈尔滨工程大学 | Flexible electronic composite turbocharging system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565609A (en) * | 2021-07-20 | 2021-10-29 | 潍柴动力股份有限公司 | Tail gas energy recovery system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220315 |
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| RJ01 | Rejection of invention patent application after publication |