CN105673186A - Cooling system of turbocharger and control method thereof - Google Patents
Cooling system of turbocharger and control method thereof Download PDFInfo
- Publication number
- CN105673186A CN105673186A CN201610066007.2A CN201610066007A CN105673186A CN 105673186 A CN105673186 A CN 105673186A CN 201610066007 A CN201610066007 A CN 201610066007A CN 105673186 A CN105673186 A CN 105673186A
- Authority
- CN
- China
- Prior art keywords
- turbocharger
- water pump
- electronic water
- control method
- cooling 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
- 238000001816 cooling Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 238000011217 control strategy Methods 0.000 claims description 16
- 239000000498 cooling water Substances 0.000 claims description 11
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 description 6
- 238000009835 boiling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 210000000476 body water Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
-
- 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
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/10—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Supercharger (AREA)
Abstract
The invention discloses a cooling system of a turbocharger and a control method thereof. The cooling system comprises an intercooler, a turbocharger and an electronic water pump, and further comprises a switch valve; the intercooler is serially connected with the electronic water pump after being connected with the turbocharger in parallel; and the switch valve is arranged on a branch of the intercooler, and is serially connected with the intercooler. The control method comprises a cycle opening control policy, a recycle opening control policy, and a stop opening control policy. The cooling system and the control method can efficiently provide reliable cooling to the turbocharger under various working conditions, can shorten the operation time of the electronic water pump and prolong the service life as far as possible, can singly cool the turbocharger after an engine is stopped, reduces the power loss, and is simple in structure, convenient to realize and low in cost.
Description
Technical field
The present invention relates to engine turbine supercharging technology field, especially relate to cooling system and the control method thereof of a kind of turbocharger.
Background technology
Adopt at present the machine oil of electromotor own and cooling water to cool down on petrol engine simultaneously, and be integrated with charge air cooler in inlet manifold engine charge is cooled down, to ensure turbocharger normal operation.
When electromotor is shut down; the cooling capacity of the machine oil of electromotor own and cooling water reduces rapidly; now turbocharger of motor is due to thermal inertia effect; its operating temperature is also very high; if its bearing arrangement only lowers the temperature by natural cooling, will result in bearing wear aggravation, have a strong impact on booster performance and service life; bearing locking will be directly contributed time serious, cause turbocharger impairment. And for ensureing that turbocharger is without prejudice, driver generally also needs to make electromotor run a period of time in the idling state after a stoppage, both add the waiting time, consume again gasoline. For avoiding this problem, use electronic water pump, it is possible to after engine stop, start electronic water pump cooling turbocharger. But it is very short to run total duration in the electronic water pump life-span, irrational control method will shorten water pump mileage in service life.
And existing charge air cooler and the parallel connection of supercharger water route exist, ensure that assignment of traffic is reasonable by the design of pipeline flow resistance. But when electromotor is shut down, engine charge is made without cooling, and supercharger also needs to electronic water pump cooling, and now current are yet by charge air cooler, causes the waste of pump power, also have impact on the cooling effect of supercharger simultaneously.
Summary of the invention
Not enough for prior art, the technical problem to be solved is to provide cooling system and the control method thereof of a kind of turbocharger, and it can provide cooling reliably for turbocharger efficiently under various operating modes.
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is:
A kind of cooling system of turbocharger, including charge air cooler and turbocharger and electronic water pump, also include switch valve, be in series with electronic water pump after described charge air cooler is in parallel with turbocharger, described switch valve is located on the branch road of charge air cooler, and switch valve and charge air cooler are in series setting.
Described switch valve is all connected with the ECU control unit in vehicle with electronic water pump.
Also including the subcolling condenser in vehicle, described subcolling condenser and electronic water pump and charge air cooler in parallel and turbocharger form closed circuit.
A kind of control method of the cooling system of turbocharger,
Control strategy is opened including circulation:
The 8-12 second is run every the 300-400 second after electronic water pump stall.
Control strategy is opened including recirculation:
When electromotor runs, delivery temperature exceedes uniform temperature, electronic water pump is opened; When the oil temperature of electromotor or cooling water temperature exceed uniform temperature, electronic water pump is opened.
Control strategy is opened including shutting down:
When electromotor is shut down, when the oil temperature of electromotor or cooling water temperature exceed uniform temperature, electronic water pump is opened.
Further, described recirculation is opened in control strategy, and when when electromotor runs, delivery temperature is more than 700-800 DEG C, electronic water pump is opened.
The present invention compared with prior art, has the advantage that
This cooling system and control method efficient can provide cooling reliably for turbocharger under various operating modes, can shorten again the operation time of electronic water pump as much as possible, and increase the service life mileage; And electromotor can be made individually to cool down turbocharger after shutting down, decrease the loss of power; Simple in construction, it is simple to realizing, cost is low.
Accompanying drawing explanation
Below the content expressed by each width accompanying drawing of this specification and the labelling in figure are briefly described:
Fig. 1 is the cooling system structure schematic diagram of turbocharger of the present invention.
In figure: 1. charge air cooler, 2. turbocharger, 3. subcolling condenser, 4. electronic water pump, 5. switch valve, 6.ECU control unit.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, the cooling system of this turbocharger, including the ECU control unit 6 in charge air cooler 1, turbocharger 2, electronic water pump 4, switch valve 5 and vehicle, wherein, it is in series with electronic water pump 4 after charge air cooler 1 is in parallel with turbocharger 2, switch valve 5 is located on the branch road of charge air cooler 1, and be in series setting, switch valve 5 and electronic water pump 4 of switch valve 5 and charge air cooler 1 is all connected with the ECU control unit 6 in vehicle.
Subcolling condenser 3 in vehicle and electronic water pump 4 and charge air cooler in parallel and turbocharger form closed circuit.
In the control strategy of electronic water pump, it is necessary to run certain time after shutting down again, cool down to turbocharger, with after preventing from shutting down in booster shaft system oil temperature too high and lost efficacy, protect turbo-charger bearing. And after electromotor shutdown, charge air cooler quits work, now need not supply water by electronic water pump.
When the engine is running, low-temperature cooling system runs well, electronic water pump normal operating conditions, and switch valve is held open, and electronic water pump supplies water to charge air cooler and turbocharger simultaneously. When electromotor is shut down, after engine intercooler quits work, ECU control unit issues electronic water pump and one signal of switch valve simultaneously; running status after electronic water pump entrance, switch valve cuts out, so that cooling water system continues to run with; cool down to turbocharger, until electronic water pump quits work. Electromotor can be made individually to cool down turbocharger after shutting down, decrease the loss of power, provide cooling reliably for turbocharger efficiently.
The control method of the cooling system of turbocharger, it can provide cooling reliably for turbocharger efficiently under various operating modes.
Control strategy is opened: for preventing the cooling water in turbocharger middle body water jacket and in adnexa pipeline overheated including circulation, forming bubble, local boiling, no matter electromotor runs under what operating mode, in every cycle at regular intervals after electronic water pump stall, the short time is run once; Preferably, the 8-12 second is run every the 300-400 second after electronic water pump stall.
Control strategy is opened including recirculation:
When electromotor runs, delivery temperature exceedes uniform temperature, electronic water pump is opened; When the oil temperature of electromotor or cooling water temperature exceed uniform temperature, electronic water pump is opened. Preferably, when when electromotor runs, delivery temperature is more than 700-800 DEG C, electronic water pump is opened.
When electromotor runs, delivery temperature exceedes a certain fixed temperature, such as 700 DEG C, and electronic water pump is opened, and arranges Wen Yuegao, and running speed is more high. When electromotor row's temperature is lower than this fixed temperature, if oil temperature or cooling water temperature exceed a certain limit value, electron assistant water pump is opened, and turbocharger is cooled down, and temperature is more high, and rotating speed is more high, until oil temperature or coolant temperature are lower than limit value. Otherwise, electron assistant water pump shuts down, but circulation is opened control strategy and run still maintenance effectively.
Opening control strategy including shutting down: when electromotor is shut down, when the oil temperature of electromotor or cooling water temperature exceed uniform temperature, electronic water pump is opened. Temperature is more high, and cool time is more long. After running a period of time, electronic water pump stops.
Circulation is opened control strategy and is possible to prevent the local boiling under any engine operation condition. Open control strategy in circulation and can cool down turbocharger in high exhaust temperature operating mode. Low exhaust temperature can also gone to from high exhaust temperature operating mode, but turbocharger due to thermal inertia thermic load still high time, electronic water pump still keeps operating condition until supercharger thermic load reduces. Shutting down and open control strategy, after engine stop, if supercharger thermic load is higher, electronic water pump can cool down supercharger, reduces its thermic load.
Above in conjunction with accompanying drawing, the present invention is exemplarily described; the obvious present invention implements and is not subject to the restrictions described above; as long as have employed the design of the present invention and the improvement of various unsubstantialities that technical scheme carries out; or the not improved design by the present invention and technical scheme directly apply to other occasion, all within protection scope of the present invention.
Claims (7)
1. the cooling system of a turbocharger, including charge air cooler and turbocharger and electronic water pump, it is characterized in that: also include switch valve, it is in series with electronic water pump after described charge air cooler is in parallel with turbocharger, described switch valve is located on the branch road of charge air cooler, and switch valve and charge air cooler are in series setting.
2. the cooling system of turbocharger as claimed in claim 1, it is characterised in that: described switch valve is all connected with the ECU control unit in vehicle with electronic water pump.
3. the cooling system of as claimed in claim 1 turbocharger, it is characterised in that: also include the subcolling condenser in vehicle, described subcolling condenser and electronic water pump and charge air cooler in parallel and turbocharger formation closed circuit.
4. the control method of the cooling system of turbocharger as described in any one of claims 1 to 3, it is characterised in that: described control method includes circulation and opens control strategy:
The 8-12 second is run every the 300-400 second after electronic water pump stall.
5. the control method of the cooling system of turbocharger as described in any one of claims 1 to 3, it is characterised in that: described control method includes recirculation and opens control strategy:
When electromotor runs, delivery temperature exceedes uniform temperature, electronic water pump is opened; When the oil temperature of electromotor or cooling water temperature exceed uniform temperature, electronic water pump is opened.
6. the control method of the cooling system of turbocharger as described in any one of claims 1 to 3, it is characterised in that: described control method includes shutting down opens control strategy:
When electromotor is shut down, when the oil temperature of electromotor or cooling water temperature exceed uniform temperature, electronic water pump is opened.
7. control method as claimed in claim 5, it is characterised in that: described recirculation is opened in control strategy, and when when electromotor runs, delivery temperature is more than 700-800 DEG C, electronic water pump is opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610066007.2A CN105673186A (en) | 2016-01-28 | 2016-01-28 | Cooling system of turbocharger and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610066007.2A CN105673186A (en) | 2016-01-28 | 2016-01-28 | Cooling system of turbocharger and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105673186A true CN105673186A (en) | 2016-06-15 |
Family
ID=56304351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610066007.2A Pending CN105673186A (en) | 2016-01-28 | 2016-01-28 | Cooling system of turbocharger and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105673186A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370428A (en) * | 2016-09-12 | 2017-02-01 | 奇瑞汽车股份有限公司 | Closed-loop control spray-type intercooler, and manufacturing method and application method thereof |
| CN109184888A (en) * | 2018-08-27 | 2019-01-11 | 奇瑞汽车股份有限公司 | A kind of electronic water pump control method of turbocharger of motor |
| CN109854355A (en) * | 2019-02-26 | 2019-06-07 | 东风汽车集团有限公司 | A kind of booster supplement heat rejecter method and system, booster cooling system and control method and automobile |
| CN113565622A (en) * | 2021-06-17 | 2021-10-29 | 东风汽车集团股份有限公司 | Method and device for controlling auxiliary electric water pump of turbocharger |
| CN115217607A (en) * | 2022-01-29 | 2022-10-21 | 广州汽车集团股份有限公司 | Cooling control method, cooling control device, electronic apparatus, and readable medium |
| WO2023087945A1 (en) * | 2021-11-22 | 2023-05-25 | 广州汽车集团股份有限公司 | Cooling control method for supercharger |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202628254U (en) * | 2012-04-28 | 2012-12-26 | 浙江吉利汽车研究院有限公司杭州分公司 | Cooling device for engine turbocharger and intercooler |
| CN103422965A (en) * | 2012-05-21 | 2013-12-04 | 通用汽车环球科技运作有限责任公司 | Engine thermal management system and method |
| CN103615302A (en) * | 2013-12-05 | 2014-03-05 | 安徽江淮汽车股份有限公司 | Cooling system of engine |
| US20150129161A1 (en) * | 2012-05-23 | 2015-05-14 | Denso Corporation | Thermal management system |
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2016
- 2016-01-28 CN CN201610066007.2A patent/CN105673186A/en active Pending
Patent Citations (4)
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| CN202628254U (en) * | 2012-04-28 | 2012-12-26 | 浙江吉利汽车研究院有限公司杭州分公司 | Cooling device for engine turbocharger and intercooler |
| CN103422965A (en) * | 2012-05-21 | 2013-12-04 | 通用汽车环球科技运作有限责任公司 | Engine thermal management system and method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370428A (en) * | 2016-09-12 | 2017-02-01 | 奇瑞汽车股份有限公司 | Closed-loop control spray-type intercooler, and manufacturing method and application method thereof |
| CN109184888A (en) * | 2018-08-27 | 2019-01-11 | 奇瑞汽车股份有限公司 | A kind of electronic water pump control method of turbocharger of motor |
| CN109854355A (en) * | 2019-02-26 | 2019-06-07 | 东风汽车集团有限公司 | A kind of booster supplement heat rejecter method and system, booster cooling system and control method and automobile |
| CN113565622A (en) * | 2021-06-17 | 2021-10-29 | 东风汽车集团股份有限公司 | Method and device for controlling auxiliary electric water pump of turbocharger |
| CN113565622B (en) * | 2021-06-17 | 2022-09-27 | 东风汽车集团股份有限公司 | Method and device for controlling auxiliary electric water pump of turbocharger |
| WO2023087945A1 (en) * | 2021-11-22 | 2023-05-25 | 广州汽车集团股份有限公司 | Cooling control method for supercharger |
| CN115217607A (en) * | 2022-01-29 | 2022-10-21 | 广州汽车集团股份有限公司 | Cooling control method, cooling control device, electronic apparatus, and readable medium |
| CN115217607B (en) * | 2022-01-29 | 2024-01-16 | 广州汽车集团股份有限公司 | Cooling control method, cooling control device, electronic equipment and readable medium |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160615 |
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| RJ01 | Rejection of invention patent application after publication |