CN107503835A - A kind of engine cooling and circulating system and its control method - Google Patents
A kind of engine cooling and circulating system and its control method Download PDFInfo
- Publication number
- CN107503835A CN107503835A CN201710883225.XA CN201710883225A CN107503835A CN 107503835 A CN107503835 A CN 107503835A CN 201710883225 A CN201710883225 A CN 201710883225A CN 107503835 A CN107503835 A CN 107503835A
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- Prior art keywords
- engine
- water pump
- exhaust gas
- temperature
- temperature sensor
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Classifications
-
- 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
-
- 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
- F01P5/12—Pump-driving arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/33—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage controlling the temperature of the recirculated gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/45—Sensors specially adapted for EGR systems
- F02M26/46—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition
- F02M26/47—Sensors specially adapted for EGR systems for determining the characteristics of gases, e.g. composition the characteristics being temperatures, pressures or flow rates
-
- 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
- F01P5/12—Pump-driving arrangements
- F01P2005/125—Driving auxiliary pumps electrically
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Analytical Chemistry (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention discloses a kind of engine cooling and circulating system and its control method, including：Vehicle refrigerating module, heating installation, engine water pump, thermostat, electronic water pump, control unit of engine and exhaust gas recycling system, exhaust gas recycling system includes cooler for recycled exhaust gas and temperature sensor, and temperature sensor is used for the air outlet temperature for measuring cooler for recycled exhaust gas；Electronic water pump is arranged in the inlet pipeline of cooler for recycled exhaust gas；Control unit of engine is used to send control instruction to electronic water pump according to the temperature that temperature sensor detects.The present invention by ECU control electronic water pump operating whether and rotating speed size, solve engine section operating point, the water-carrying capacity deficiency of EGR cooler distributions, caused EGR rate limitation problem, so as to which engine full working scope point can reach optimal EGR rate, fuel economy is further improved.
Description
Technical field
Cooled down automatically the present invention relates to engine, more particularly to a kind of engine cooling and circulating system and its control method.
Background technology
With severity, exhaust gas recirculatioon (Exhaust Gas Recirculation, abbreviation EGR) skill of Abgasgesetz
Art is arisen at the historic moment on petrol engine, reaches the purpose for reducing discharge and oil consumption；But due to conventional engines water
The performance limitation (water-carrying capacity is raised and increased with rotating speed, unrelated with load) of pump, the water-carrying capacity of EGR-cooler distributions are limited
System, causes Part load point EGR rate to increase；EGR rate is improved under these Part load points in other words to cause EGR to cool down
The air outlet temperature of device (EGR-cooler) is high, causes intake air temperature to raise and damage the parts of air inlet rear end and (exceeds temperature
The scope of application).Fig. 1 is the assignment of traffic illustraton of model according to mechanical water pump in the prior art；In figure, topmost a curve is machine
The total flow of tool water pump, a bottom curve are flow of the mechanical water pump for EGR cooling distribution.Fig. 2 is cooler for recycled exhaust gas flow
Demand contrasts with actual distribution.From Fig. 1 and Fig. 2, mechanical water pump is that the flow of EGR cooling distribution is obvious not in the prior art
It is enough.
In order to not damage the parts of air inlet rear end, a kind of way is to reduce EGR when temperature is high in the early stage in the prior art
Rate.
Therefore, how on the premise of Optimum EGR rate is ensured, the air outlet temperature of cooler for recycled exhaust gas is controlled in rational scope
It is inside technical problem urgently to be resolved hurrily.
The content of the invention
In order to solve the above-mentioned technical problem, the application increases small-power electronic water pump to make up Part load point on water route
The problem of water-carrying capacity underfed, reach the supply on demand of EGR-cooler cooling water flows；So as to solve sub-load EGR rate
Because water-carrying capacity it is small and limited the problem of.
The invention provides a kind of engine cooling and circulating system, including：Vehicle refrigerating module, heating installation, engine
Water pump, thermostat, electronic water pump, control unit of engine and exhaust gas recycling system, wherein,
Exhaust gas recycling system includes cooler for recycled exhaust gas and temperature sensor, and the temperature sensor is used to measure EGR coolings
The air outlet temperature of device；
The vehicle refrigerating module is connected with engine water pump and thermostat by pipeline respectively,
The heating installation is connected with thermostat and cooler for recycled exhaust gas by pipeline respectively, the delivery port of the cooler for recycled exhaust gas
It is connected with the water inlet pipeline of the engine water pump；
The electronic water pump is arranged in the inlet pipeline of cooler for recycled exhaust gas；
The control unit of engine, which is used to be sent to the electronic water pump according to the temperature that temperature sensor detects, to be controlled
System instruction.
Further, the exhaust gas recycling system also includes turbocharger, ternary catalyzing unit, blast pipe and EGR valve.
Further, in addition to air cleaner, it is arranged in the air inlet pipeline of turbocharger.
Further, electronic throttle, water-cooled charge air cooler, air inlet discrimination are additionally provided with the pipeline of the turbocharger
Pipe and exhaust manifold.
Further, the control unit of engine is used for the electronics according to the temperature control that temperature sensor detects
The working speed of water pump.
The temperature that the control unit of engine is further used for detecting in the temperature sensor is higher than default threshold
During value, the electronic water pump is controlled with default first rotary speed working；The control unit of engine is further used for described
When the temperature that temperature sensor detects is not higher than default threshold value, the electronic water pump is controlled with default second rotating speed work
Make.
Further, the water inlet of the cooler for recycled exhaust gas is connected with the delivery port of the heating installation by pipeline.
A kind of engine cooling and circulating system control method, based on above-mentioned engine cooling and circulating system, method includes：
Control unit of engine receives the temperature signal that temperature sensor is sent；
Control unit of engine sends control instruction according to the temperature that temperature sensor detects to electronic water pump.
Further, the control unit of engine sends to electronic water pump according to the temperature that temperature sensor detects and controlled
System instruction, including：
For control unit of engine when the temperature that temperature sensor detects is higher than default threshold value, control electronics is with default
The first rotary speed working；
Control unit of engine controls electronic water pump when the temperature that temperature sensor detects is not higher than default threshold value
With default second rotary speed working.
In summary, the invention provides a kind of engine cooling and circulating system, including：Vehicle refrigerating module, heating dress
Put, engine water pump, thermostat, electronic water pump, control unit of engine and exhaust gas recycling system, electronic water pump are arranged on
In the inlet pipeline of cooler for recycled exhaust gas, the control unit of engine is used for according to the temperature that temperature sensor detects to described
Electronic water pump sends control instruction.The present invention by ECU control electronic water pump operating whether and working speed, solve to start
Machine Part load point, the water-carrying capacity deficiency of EGR-cooler distributions, caused EGR rate limitation problem, or ensure optimal EGR
The problem of EGR-cooler air outlet temperature is high caused by rate, and intake air temperature raises and damages the parts of air inlet rear end
(exceeding temperature applicable range)；So as to which engine full working scope point can reach optimal EGR rate, fuel-economy is further improved
Property.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art and advantage, below will be to implementing
The required accompanying drawing used is briefly described in example or description of the prior art, it should be apparent that, drawings in the following description are only
Only it is some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is that engine water pump is the actual water-carrying capacity distributed of cooler for recycled exhaust gas；
Fig. 2 is that cooler for recycled exhaust gas traffic demand contrasts with actual distribution.
Fig. 3 is the structure chart of engine cooling and circulating system provided by the invention.
Embodiment
What is be described below is some in multiple possible embodiments of the invention, it is desirable to provide to the basic of the present invention
Solution, it is no intended to confirm the crucial or conclusive key element of the present invention or limit scope of the claimed.It is readily appreciated that, according to this
The technical scheme of invention, in the case where not changing the connotation of the present invention, those of ordinary skill in the art can propose can be mutual
Other implementations replaced.Therefore, detailed description below and accompanying drawing are only the examples to technical scheme
Property explanation, and the whole or be considered as being not to be construed as the present invention defines or limits to technical solution of the present invention.
In following description, for the clear and concise of description, all multiple parts shown in figure are not retouched
State.There is provided shown in the drawings of multiple parts for those of ordinary skill in the art in the disclosure for being fully able to realize of the present invention
Hold.To those skilled in the art, perhaps multipart operation is all familiar and obvious.
Herein, " on ", " under ", the directional terminology of "left", "right", "front", "rear" are filled relative to the opening and closing in accompanying drawing
The orientation after installing and using in rail vehicle or the orientation shown in relative accompanying drawing is put to define, and, it should be understood that
Arrive, these directional terminologies are relative concepts, they be used for relative to description and clarification, it can be according to engine cool
The change in the orientation of the circulatory system and correspondingly change.
Fig. 3 is the structure chart of engine cooling and circulating system provided by the invention.
It can be seen from figure 3 that the invention provides a kind of engine cooling and circulating system, including：Vehicle refrigerating module 14, heating
Device 15, engine water pump 12, thermostat 13, electronic water pump 18, control unit of engine 19 and exhaust gas recycling system.
Exhaust gas recirculatioon (Exhaust Gas Recirculation) is that automobile using compact internal combustion engine after combustion will discharge
A part for gas, which goes out and imports suction side, makes the technology (gimmick or method) of its air-breathing once again.Main purpose is discharged to reduce
Nitrogen oxides (NOx) in gas when sharing sub-load with that can improve rate of fuel consumption rate.Take the prefix of each of which English individual character
" EGR " is common name.
Exhaust gas recycling system includes cooler for recycled exhaust gas 9 and temperature sensor 10, and the temperature sensor 10 is used to measure
The air outlet temperature of cooler for recycled exhaust gas 9.
In an optional embodiment, temperature sensor 10 is arranged on the gas outlet of cooler for recycled exhaust gas 9, so that detection
The air outlet temperature of cooler for recycled exhaust gas 9 is more accurate.
The vehicle refrigerating module 14 is connected with engine water pump 12 and thermostat 13 by pipeline respectively, the heating dress
Put 15 to be connected by pipeline with thermostat 13 and cooler for recycled exhaust gas 9 respectively, delivery port and the engine of the cooler for recycled exhaust gas 9
The water inlet pipeline connection of water pump 12.The electronic water pump 18 is arranged in the inlet pipeline of cooler for recycled exhaust gas 9.
The control unit of engine 19 is used for according to the temperature that temperature sensor 10 detects to the electronic water pump 18
Send control instruction.Control unit of engine is also referred to as ECU.ECU (Electronic Control Unit) is also known as " driving electricity
Brain ", " vehicle-mounted computer " etc..It is then automobile specified microcomputerized controller from purposes, is also automobile specified single-chip microcomputer.It and it is common
Single-chip microcomputer it is the same, by microprocessor (CPU), memory (ROM, RAM), input/output interface (I/O), analog-digital converter
And the large scale integrated circuit such as shaping, driving composition (A/D).
The control unit of engine 19 of the present invention is additionally operable to calculate EGR rate.EGR rate be defined as recycling exhausted air quantity with
Sucking the ratio between air inlet total amount of cylinder, clean-up effect and the complete machine discharge of the reasonable control of EGR rate to nitrogen oxides are of crucial importance,
Carry out needing a kind of method to quantify EGR rate during rating test, to judge influence of the waste gas recycling to engine performance.Engine
The air outlet temperature of the cooler for recycled exhaust gas 9 that control unit 19 detects according to EGR rate and temperature sensor controls electronic water pump 18
Work whether operates and rotating speed size, improves control accuracy, controls the work of electronic water pump 18 to ensure with reference to EGR rate
Accurately distribution water-carrying capacity, and system effectiveness is higher, will not cause energy waste on the premise of EGR rate.
In an optional embodiment, the exhaust gas recycling system also include turbocharger 6, ternary catalyzing unit 7,
Blast pipe 8 and EGR valve 11.
In an optional embodiment, in addition to air cleaner 1, it is arranged in the air inlet pipeline of turbocharger 6,
Air cleaner 1 can carry out pre-filtering to the gas for entering turbocharger 6, so as to improve the efficiency of turbocharger 6, drop
The loss of low turbocharger 6.
In an optional embodiment, electronic throttle 2, water cooling are additionally provided with the pipeline of the turbocharger 6
Formula charge air cooler 3, inlet manifold 4 and exhaust manifold 5.
In an optional embodiment, the ternary catalyzing unit 7 is arranged on the blast pipe 8.
In an optional embodiment, the control unit of engine 19 is used for what is detected according to temperature sensor 10
The working speed of electronic water pump 18 described in temperature control.
In an optional embodiment, the control unit of engine 19 is further used in the temperature sensor 10
When the temperature detected is higher than default threshold value, the electronic water pump 18 is controlled with default first rotary speed working；It is described to start
Machine control unit 19 is further used for when the temperature that the temperature sensor 10 detects is not higher than default threshold value, controls institute
Electronic water pump 18 is stated with default second rotary speed working.Default threshold value can be 140~160 DEG C, such as 150 DEG C.
Wherein, the first rotating speed can be the speed more than zero；Second rotating speed can be zero.
In an optional embodiment, the control unit of engine 19 is further used in the temperature sensor 10
When the temperature detected is higher than default threshold value, the electronic water pump 18 is controlled to work.
In an optional embodiment, the control unit of engine 19 is further used in the temperature sensor 10
When the temperature detected is not higher than default threshold value, the electronic water pump 18 is controlled not work.
In an optional embodiment of the present invention, default threshold value is empirical value, is connected with the gas outlet of cooler for recycled exhaust gas 9
The material for connecing device is relevant, i.e. sets default threshold value according to the material of the gas outlet institute interface unit of cooler for recycled exhaust gas 9.
In an optional embodiment, the delivery port of the water inlet of the cooler for recycled exhaust gas 9 and the heating installation 15 leads to
Cross pipeline connection.
Below, the course of work of engine cooling and circulating system provided by the invention is described in detail：
Referring to Fig. 3, referring initially to the gas process of circulation：Extraneous air enters turbocharger 6 by air cleaner 1, through whirlpool
Gas after the wheel heating of booster 6 first passes through water-cooled charge air cooler 3 after electronic throttle 2 and cooled down, and gas passes sequentially through
Discharged after inlet manifold 4, outlet manifold 5 from blast pipe 8.Wherein, it is provided with ternary catalyzing unit on blast pipe 8.Draw from blast pipe 8
The EGR exhaust entered is cooled down by cooler for recycled exhaust gas 9.
Thick line in Fig. 3 is cooling water pipeline, and the cooling water process of circulation is illustrated below：
Engine water pump 12 is mechanical water pump, there is provided the main water flow power of cooling system.Refrigerating module 14 is with starting
Machine water pump 12, thermostat 13, the electronic water pump of heating installation 15 and cooler for recycled exhaust gas 9 form water circulation.
After the water that heating installation 15 flows out flows into cooler for recycled exhaust gas water inlet pipe 16, into cooler for recycled exhaust gas 9, cooler for recycled exhaust gas 9 flows
The water gone out imports the water inlet pipe of engine water pump through cooler for recycled exhaust gas return pipe 17.Electronic water pump 18 is arranged on cooler for recycled exhaust gas water inlet
In pipe 16, for being opened when water temperature is higher than default threshold value, increase water-carrying capacity, reach the cooling requirement of EGR gases.
Engine cooling and circulating system provided by the invention can realize the supply on demand of cooler for recycled exhaust gas cooling water flow,
So as to solve the problems, such as that part meets EGR rate because water-carrying capacity is small and limited.
According to another embodiment of the present invention, there is provided a kind of engine cooling and circulating system control method, based on above-mentioned
Engine cooling and circulating system, method includes：
Control unit of engine receives the temperature signal that temperature sensor is sent；
Control unit of engine sends control instruction according to the temperature that temperature sensor detects to electronic water pump.
Further, the control unit of engine sends to electronic water pump according to the temperature that temperature sensor detects and controlled
System instruction, including：
Further, control unit of engine electronic water pump according to the temperature control that temperature sensor detects
Working speed.
Further, the control unit of engine sends to electronic water pump according to the temperature that temperature sensor detects and controlled
System instruction, including：
For control unit of engine when the temperature that temperature sensor detects is higher than default threshold value, control electronics is with default
The first rotary speed working；
Control unit of engine controls electronic water pump when the temperature that temperature sensor detects is not higher than default threshold value
With default second rotary speed working.
In summary, the invention provides a kind of engine cooling and circulating system, including：Vehicle refrigerating module, heating dress
Put, engine water pump, thermostat, electronic water pump, control unit of engine and exhaust gas recycling system, electronic water pump are arranged on
In the inlet pipeline of cooler for recycled exhaust gas, the control unit of engine is used for according to the temperature that temperature sensor detects to described
Electronic water pump sends control instruction.Whether is operating of the invention by ECU control electronic water pumps, solves engine portion divided working status
Caused by the optimal EGR rate of point, the water-carrying capacity deficiency of EGR-cooler distributions, caused EGR rate limitation problem, or guarantee
EGR-cooler air outlet temperature is high, and intake air temperature is raised and (fitted the problem of damaging the parts of air inlet rear end beyond temperature
With scope)；So as to which engine full working scope point can reach optimal EGR rate, fuel economy is further improved.
Example above primarily illustrates system and method provided by the invention.Although only to the implementation of some of present invention
Mode is described, but those of ordinary skill in the art it is to be appreciated that the present invention can without departing from its spirit with scope
It is interior to be implemented in the form of many other.Therefore, the example shown is considered as illustrative and not restrictive with embodiment,
In the case where not departing from the spirit and scope of the present invention as defined in appended claims, the present invention may cover various
Modification and replacement.
Claims (10)
- A kind of 1. engine cooling and circulating system, it is characterised in that including：Vehicle refrigerating module (14), heating installation (15), hair Motivation water pump (12), thermostat (13), electronic water pump (18), control unit of engine (19) and exhaust gas recycling system, wherein,Exhaust gas recycling system includes cooler for recycled exhaust gas (9) and temperature sensor (10), and the temperature sensor (10) is used to measure The air outlet temperature of cooler for recycled exhaust gas (9)；The vehicle refrigerating module (14) is connected with engine water pump (12) and thermostat (13) by pipeline respectively,The heating installation (15) is connected with thermostat (13) and cooler for recycled exhaust gas (9) by pipeline respectively, the cooler for recycled exhaust gas (9) delivery port is connected with the water inlet pipeline of the engine water pump (12)；The electronic water pump (18) is arranged in the inlet pipeline of cooler for recycled exhaust gas (9)；The control unit of engine (19) is used for according to the temperature that temperature sensor (10) detects to the electronic water pump (18) control instruction is sent.
- 2. engine cooling and circulating system according to claim 1, it is characterised in that the exhaust gas recycling system is also wrapped Include turbocharger (6), ternary catalyzing unit (7), blast pipe (8) and EGR valve (11).
- 3. engine cooling and circulating system according to claim 1 or 2, it is characterised in that also including air cleaner (1), it is arranged in the air inlet pipeline of turbocharger (6).
- 4. engine cooling and circulating system according to claim 1, it is characterised in that the pipe of the turbocharger (6) Electronic throttle (2), water-cooled charge air cooler (3), inlet manifold (4) and exhaust manifold (5) are additionally provided with road.
- 5. the engine cooling and circulating system according to claim 1 or 3, it is characterised in that the control unit of engine (19) it is used for the working speed of the electronic water pump (18) according to the temperature control that temperature sensor (10) detects.
- 6. engine cooling and circulating system according to claim 1, it is characterised in that the control unit of engine (19) It is further used for, when the temperature that the temperature sensor (10) detects is higher than default threshold value, controlling the electronic water pump (18) with default first rotary speed working.
- 7. engine cooling and circulating system according to claim 1, it is characterised in that the control unit of engine (19) It is further used for, when the temperature that the temperature sensor (10) detects is not higher than default threshold value, controlling the electronic water pump (18) with default second rotary speed working.
- 8. engine cooling and circulating system according to claim 1, it is characterised in that the water inlet of the cooler for recycled exhaust gas (9) Mouth is connected with the delivery port of the heating installation (15) by pipeline.
- A kind of 9. engine cooling and circulating system control of any described engine cooling and circulating system in 1-8 based on claim Method processed, it is characterised in that including：Control unit of engine receives the temperature signal that temperature sensor is sent；Control unit of engine sends control instruction according to the temperature that temperature sensor detects to electronic water pump.
- 10. engine cooling and circulating system control method according to claim 9, it is characterised in that the engine control Unit processed sends control instruction according to the temperature that temperature sensor detects to electronic water pump, including：For control unit of engine when the temperature that temperature sensor detects is higher than default threshold value, control electronic water pump is with default The first rotary speed working；For control unit of engine when the temperature that temperature sensor detects is not higher than default threshold value, control electronic water pump is with pre- If the second rotary speed working.
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| CN201710883225.XA CN107503835A (en) | 2017-09-26 | 2017-09-26 | A kind of engine cooling and circulating system and its control method |
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| CN201710883225.XA CN107503835A (en) | 2017-09-26 | 2017-09-26 | A kind of engine cooling and circulating system and its control method |
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Cited By (7)
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| CN108397314A (en) * | 2018-02-07 | 2018-08-14 | 贵阳吉利发动机有限公司 | Cooling system for recycled exhaust gas, egr system and cooling system for recycled exhaust gas control method |
| CN111734616A (en) * | 2020-07-06 | 2020-10-02 | 潍柴动力股份有限公司 | Electric control water pump control method and ECU |
| CN111878265A (en) * | 2020-03-02 | 2020-11-03 | 广西玉柴机器股份有限公司 | EGR cooling system |
| CN111927658A (en) * | 2020-08-06 | 2020-11-13 | 一汽解放汽车有限公司 | Engine air intake control system and control method |
| CN115306535A (en) * | 2022-10-12 | 2022-11-08 | 潍柴动力股份有限公司 | Control method and device for speed-regulating water pump, electronic equipment and storage medium |
| CN115506880A (en) * | 2022-10-31 | 2022-12-23 | 长城汽车股份有限公司 | Control method and device for electronic water pump of engine, storage medium and vehicle |
| CN115506880B (en) * | 2022-10-31 | 2024-06-28 | 长城汽车股份有限公司 | Control method and device of electronic water pump of engine, storage medium and vehicle |
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| CN111878265A (en) * | 2020-03-02 | 2020-11-03 | 广西玉柴机器股份有限公司 | EGR cooling system |
| CN111734616A (en) * | 2020-07-06 | 2020-10-02 | 潍柴动力股份有限公司 | Electric control water pump control method and ECU |
| CN111734616B (en) * | 2020-07-06 | 2022-04-26 | 潍柴动力股份有限公司 | Electric control water pump control method and ECU |
| CN111927658A (en) * | 2020-08-06 | 2020-11-13 | 一汽解放汽车有限公司 | Engine air intake control system and control method |
| CN115306535A (en) * | 2022-10-12 | 2022-11-08 | 潍柴动力股份有限公司 | Control method and device for speed-regulating water pump, electronic equipment and storage medium |
| CN115506880A (en) * | 2022-10-31 | 2022-12-23 | 长城汽车股份有限公司 | Control method and device for electronic water pump of engine, storage medium and vehicle |
| CN115506880B (en) * | 2022-10-31 | 2024-06-28 | 长城汽车股份有限公司 | Control method and device of electronic water pump of engine, storage medium and vehicle |
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Application publication date: 20171222 |