CN108397274A - Automobile fan control method - Google Patents
Automobile fan control method Download PDFInfo
- Publication number
- CN108397274A CN108397274A CN201810184805.4A CN201810184805A CN108397274A CN 108397274 A CN108397274 A CN 108397274A CN 201810184805 A CN201810184805 A CN 201810184805A CN 108397274 A CN108397274 A CN 108397274A
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- Prior art keywords
- fan
- water temperature
- engine
- gear
- value
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- 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.)
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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
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
-
- 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
- F01P7/026—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
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/08—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning For Vehicles (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of automobile fan control methods, including step：As engine water temperature >=(T+A) DEG C, fan starts running, wherein T is the target water temperature value of electronic thermostat, and A is temperature corrected value, A>0.In high speed, high engine load, high Engine Inlet Temperature and high engine speed, since T values are smaller, so fan can more early open operation, reach preferable cooling effect；And when engine partial circulating, speed, engine load, engine inlet temperature and engine speed are relatively low at this time, the target water temperature value of electronic thermostat is higher, fan will be run, and need engine water temperature that could be operated than high A DEG C of target water temperature T values or more, before ensure that the systemic circulation of cooling system water route is opened, fan will not be run when i.e. engine water temperature is less than target water temperature value, reduce warm-up period, improve the heating performance in member cabin, simultaneously fan is run according to duty requirements, reduces fan power consumption.
Description
Technical field
The present invention relates to engine-cooling system technical field, more particularly to a kind of automobile fan control method.
Background technology
Engine provides the machine of power as automobile, is the heart of automobile, influences the dynamic property, economy and ring of automobile
Guarantor property.In order to avoid engine temperature is higher in vehicle traveling process, fan is wide as the cooling element of transmitter cooling system
General use.
The operation control logic of fan mainly formulates fan operation according to two parameters of the mild air conditioning pressure of engine water
Control logic.Three kinds of the control logic setting low speed of usual fan, middling speed, high speed speeds of service, for engine water temperature,
To cover engine water temperature range, reach the cooling effect of demand, each shelves fortune of fan is arranged according to engine water temperature in fan step by step
Row logic, when the slightly higher temperature of water temperature arrival, works as hair specifically, spending fan unlatching low or first gear when engine water temperature is located at 90 DEG C more
Fan opens mid ranger when motivation water temperature is located at 102 DEG C or so, and reaches higher temperature, when engine water temperature is located at 107 DEG C of left sides
Then fan opens top gear when right, i.e. the operation of each shelves wind speed of fan is according to definite value parameter setting.
However, since the engine water circulatory system is divided into partial circulating and systemic circulation, if engine uses electronics section
Warm device, it is assumed that motoring condition electronic thermostat standard-sized sheet temperature be 105 DEG C, then water temperature need to reach 105 DEG C to power on
Just meeting standard-sized sheet, the engine water circulatory system proceed by systemic circulation to sub- thermostat, if before electronic thermostat standard-sized sheet, according to upper
The fan operation control logic stated, fan can be in engine water circulatory system partial circulating, i.e., water temperature only has when being spent 90 DEG C just more
The operation of fan low or first gear is opened, and when engine water temperature is dropped under set temperature, fan is out of service, causes fan start and stop frequency
Numerous, engine water temperature fluctuation heating is slow so that warm-up period extends, and influences engine warm-up performance, especially low temperature environment
Under can also influence the heating performance of crew module, and fan power consumption is increased.
Therefore, how while reducing fan power consumption, improve the heating performance in member cabin, be those skilled in the art urgently
Technical problem to be solved.
Invention content
The object of the present invention is to provide a kind of automobile fan control method, with while reducing fan power consumption, improve at
The heating performance in member cabin.
To achieve the above object, the present invention provides a kind of automobile fan control method, including step：
As engine water temperature >=(T+A) DEG C, fan starts running；
Wherein, T is the target water temperature value of electronic thermostat, and A is temperature corrected value, A>0.
Preferably, in engine water temperature uphill process：
When engine water temperature rises to (T+A) DEG C, fan is operated by the first gear；
When transmitter water temperature rises to (T+B) DEG C, fan is operated by the second gear；
Wherein, B is temperature corrected value, A<B, the air quantity of the first gear<The air quantity of second gear.
Preferably,
When engine water temperature rises to (T+C) DEG C by (T+B) DEG C, fan is operated by third gear；
Wherein, C is temperature corrected value, B<C, the air quantity of the second gear<The air quantity of third gear.
Preferably, during engine cooling：
During engine cooling：
As engine water temperature >=(T+C-F) DEG C, fan is operated by third gear；
As (T+C-F) DEG C<Engine water temperature≤(T+B-E) DEG C, fan are operated by the second gear；
As (T+B-E) DEG C<Engine water temperature≤(T+A-D) DEG C, fan are operated by the first gear；
Work as engine water temperature<(T+A-D) DEG C, fan shuts down.
Wherein, D>0, E>0, F>0, (T+A)<(T+B-E), (T+B)<(T+C-F).
Preferably, D, E and F numerical value are equal；
Preferably, A, B and C are distributed by arithmetic progression.
In the above-mentioned technical solutions, automobile fan control method provided by the invention, including step：When engine water temperature >=
(T+A) DEG C when, fan starts running；Wherein, T is the target water temperature value of electronic thermostat, and A is temperature corrected value, A>0.
By foregoing description it is found that in automobile fan control method provided by the present application, speed that fan starts running
It is associated with the target water temperature value of electronic thermostat, since vehicle operates in low speed, low engine load, low engine inlet temperature
When degree and low engine speed, target water temperature value is higher.With speed, engine load, Engine Inlet Temperature and
The raising of engine speed, target water temperature value are then continuously decreased since standard-sized sheet temperature value, until speed, engine load, hair
When motivation intake air temperature and engine speed reach design maximum ability, target water temperature is preferably minimized value, and high speed, height start
When machine load, high Engine Inlet Temperature and high engine speed, since T values are smaller, so fan can more early open fortune
Row reaches preferable cooling effect if engine water temperature heating is very fast；And when engine partial circulating, at this time speed, start
Machine load, engine inlet temperature and engine speed are also relatively low, and the target water temperature value of electronic thermostat is higher, and fan will be transported
It is capable then need engine water temperature that could be operated than high A DEG C of target water temperature T values or more, it ensure that the systemic circulation of cooling system water route is opened
Before, i.e., fan will not be run when engine water temperature is less than target water temperature value, therefore so that fan can be transported according to duty requirements
Row reduces fan power consumption, reduces warm-up period, improves the heating performance in member cabin.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fan transports control method flow chart in the transmitter water temperature uphill process that Fig. 1 is provided by the embodiment of the present invention.
Specific implementation mode
Core of the invention is to provide a kind of automobile fan control method, with while reducing fan power consumption, improve at
The heating performance in member cabin.
In order to make those skilled in the art more fully understand technical scheme of the present invention, below in conjunction with the accompanying drawings and embodiment party
The present invention is described in further detail for formula.
Referring to FIG. 1, in a specific embodiment, the automobile fan controlling party that the specific embodiment of the invention provides
Method, including step：As engine water temperature >=(T+A) DEG C, fan starts running；Wherein, T is the target water temperature of electronic thermostat
Value, A is temperature corrected value, A>0.
As shown in table 1 to table 3, wherein table 1 is engine load target water temperature value corresponding with speed, and table 2 is engine
Rotating speed target water temperature value corresponding with engine load, table 3 are Engine Inlet Temperature target water temperature value corresponding with speed.
Table 1
Table 2
Table 3
T values value in 105, T1, T2, T3, T4, numerical values recited relationship be 105 ＞ T1 ＞ T2 ＞ T3 ＞ T4, as T1, T2,
It is 100,95,90,85 that T3, T4, which can distinguish value, and maximum value is the standard-sized sheet temperature value 105 of electronic thermostat, needs to illustrate
Be each T values in table be according to oil consumption, discharge of engine etc. require by engine department finally confirm come number
According to table, the different each temperature T values of engine and distribution situation are also different, and table provided by the invention is only made to illustrate, be not limited to table 1 to
Set parameter and parameter distribution situation in table 3.As seen from table, the operating condition of target water temperature value T and vehicle is closely bound up,
Target water temperature value is a dynamic value, due to dynamic value compared with definite value closer to vehicle actual condition, therefore with electronic thermostat
Target water temperature value be formulate fan operation logic parameter, by the target water temperature value of engine water temperature and electronic thermostat into
Line number value compares, to formulate the start-stop logic of fan.There is corresponding speed according to speed operating mode vehicle, engine load, start
Machine rotating speed, Engine Inlet Temperature can find corresponding T values according to table 1 to table 3 in table, and the T values obtained in each table carry out
Final T values are determined by minimum value more afterwards.
Preferably, when engine water temperature rises to (T+A) DEG C, fan is operated by the first gear；
When transmitter water temperature rises to (T+B) DEG C, fan is operated by the second gear；
Wherein, B is temperature corrected value, A<B, the air quantity of the first gear<The air quantity of second gear.
By setting the first gear and the second gear so that fan carries out air quantity adjustment according to actual needs, effectively subtracts
Small fan runs power consumption.
More preferably,
When engine water temperature rises to (T+C) DEG C by (T+B) DEG C, fan is operated by third gear；
Wherein, C is temperature corrected value, B<C, the air quantity of the second gear<The air quantity of third gear.By the way that third gear is arranged
Position realizes the low speed of rotation speed of the fan, middling speed and runs at high speed, therefore select this dynamic value of electronic thermostat target water temperature,
Allow fan to operate in rational gear according to duty requirements, further decreases fan operation power consumption.
Further, automobile fan control method, during engine cooling：
As engine water temperature >=(T+C-F) DEG C, fan is operated by third gear；
As (T+C-F) DEG C<Engine water temperature≤(T+B-E) DEG C, fan are operated by the second gear；
As (T+B-E) DEG C<Engine water temperature≤(T+A-D) DEG C, fan are operated by the first gear；
Work as engine water temperature<(T+A-D) DEG C, fan shuts down.
Wherein, D>0, E>0, F>0, (T+A)<(T+B-E), (T+B)<(T+C-F).
That is, during engine water temperature declines successively, when engine water temperature is reduced to (T+C-F) DEG C or less, fan
It is operated by the second gear；When engine water temperature is reduced to T+B-E) below when, fan by the first gear operate, work as engine water temperature
When being reduced to (T+A-D) DEG C or less, fan shuts down.Fan heating and temperature-fall period middle gear are avoided by the way that D, E and F is arranged
Transformation temperature setting value is equal, and then the case where lead to fan short time frequent changes gear, extends the service life of fan.
Wherein, the gear of fan can specifically be run in which gear by vehicle control unit controls, control opening for fan
Stop, the water temperature value that entire car controller is arrived by temperature sensor measurement on engine is according to above-mentioned temperature logic control.
Preferably, D, E and F numerical value are equal, since D, E and F numerical value are equal, convenient for setting fan control temperature value.It is sending out
In motivation water temperature temperature-fall period, by the way that temperature value D, E and F is arranged, fan is avoided to be transported in a constant gradient successively shift
Turn.
In order to realize that fan gear is controlled by temperature gradient, it is preferable that A, B and C are distributed by arithmetic progression, specifically, A, B, C
1,3,5 or 2,4,6 etc. can be followed successively by.It can specifically be selected according to the actual conditions of vehicle with finally meeting engine water temperature requirement
It selects suitable value and is demarcated by real vehicle correlation test finally to confirm.
By foregoing description it is found that in the automobile fan control method that the application specific embodiment is provided, fan is opened
The speed for beginning to operate is associated with the target water temperature value of electronic thermostat, since vehicle operates in low speed (including idling), low hair
When engine load, low Engine Inlet Temperature and low engine speed, target water temperature value all can be higher.With speed, start
The raising of machine load, Engine Inlet Temperature and engine speed, target water temperature value are then gradually dropped since standard-sized sheet temperature value
It is low, when speed, engine load, Engine Inlet Temperature and engine speed reach design maximum ability, target water
Temperature drop to minimum, so, when automobile with high speed, high engine load, high Engine Inlet Temperature and high engine turn
When fast, since T values are smaller, so fan can more early open operation, if engine water temperature heating is very fast, fan operation also can
It is enough to be quickly transformed into higher rotation speed operating from compared with the slow-speed of revolution, it is ensured that engine water temperature is no more than temperature limit, reaches preferable cold
But effect.
When engine carries out partial circulating, due to speed, engine load, engine inlet temperature and engine speed ratio
Relatively low, the target water temperature value of electronic thermostat is higher at this time, and fan will be run, and needs engine water temperature higher than target water temperature T values
A DEG C or more could operate, and this guarantees fans when i.e. engine water temperature is less than target water temperature value before water route systemic circulation opening not
It can run, therefore so that fan can be run according to duty requirements, reduce fan power consumption, reduce warm-up period, improve member cabin
Heating performance.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (6)
1. a kind of automobile fan control method, which is characterized in that including step：
As engine water temperature >=(T+A) DEG C, fan starts running；
Wherein, T is the target water temperature value of electronic thermostat, and A is temperature corrected value, A>0.
2. automobile fan control method according to claim 1, which is characterized in that in engine water temperature uphill process：
When engine water temperature rises to (T+A) DEG C, fan is operated by the first gear；
When transmitter water temperature rises to (T+B) DEG C, fan is operated by the second gear；
Wherein, B is temperature corrected value, A<B, the air quantity of the first gear<The air quantity of second gear.
3. automobile fan control method according to claim 2, which is characterized in that
When engine water temperature rises to (T+C) DEG C by (T+B) DEG C, fan is operated by third gear；
Wherein, C is temperature corrected value, B<C, the air quantity of the second gear<The air quantity of third gear.
4. automobile fan control method according to claim 3, which is characterized in that during engine cooling：
As engine water temperature >=(T+C-F) DEG C, fan is operated by third gear；
As (T+C-F) DEG C<Engine water temperature≤(T+B-E) DEG C, fan are operated by the second gear；
As (T+B-E) DEG C<Engine water temperature≤(T+A-D) DEG C, fan are operated by the first gear；
Work as engine water temperature<(T+A-D) DEG C, fan shuts down；
Wherein, D>0, E>0, F>0, (T+A)<(T+B-E), (T+B)<(T+C-F).
5. automobile fan control method according to claim 4, which is characterized in that D, E and F numerical value are equal.
6. automobile fan control method according to claim 1, which is characterized in that A, B and C are distributed by arithmetic progression.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810184805.4A CN108397274A (en) | 2018-03-06 | 2018-03-06 | Automobile fan control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810184805.4A CN108397274A (en) | 2018-03-06 | 2018-03-06 | Automobile fan control method |
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| CN108397274A true CN108397274A (en) | 2018-08-14 |
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| CN201810184805.4A Pending CN108397274A (en) | 2018-03-06 | 2018-03-06 | Automobile fan control method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055731A (en) * | 2019-04-04 | 2019-07-26 | 青岛海尔洗衣机有限公司 | A kind of temprature control method and heat-pump-type clothes treatment device of clothes treatment device |
| CN111746496A (en) * | 2020-06-29 | 2020-10-09 | 潍柴动力股份有限公司 | Control strategy and control device of fan and driving equipment |
| CN111779561A (en) * | 2020-05-29 | 2020-10-16 | 中通客车控股股份有限公司 | Engine cooling system and regulation and control method |
| CN112065562A (en) * | 2020-09-04 | 2020-12-11 | 北京理工大学 | Temperature control system and method of air-cooled engine and terminal equipment |
| CN113404582A (en) * | 2020-03-17 | 2021-09-17 | 常州市温帆温控科技有限公司 | Diesel engine electric control fan controller and control method thereof |
| CN113733896A (en) * | 2020-05-28 | 2021-12-03 | 上海汽车集团股份有限公司 | Control method of variable air inlet grille |
| CN113818952A (en) * | 2020-06-18 | 2021-12-21 | 广州汽车集团股份有限公司 | Method and device for controlling vehicle cooling fan |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110055731A (en) * | 2019-04-04 | 2019-07-26 | 青岛海尔洗衣机有限公司 | A kind of temprature control method and heat-pump-type clothes treatment device of clothes treatment device |
| CN113404582A (en) * | 2020-03-17 | 2021-09-17 | 常州市温帆温控科技有限公司 | Diesel engine electric control fan controller and control method thereof |
| CN113733896A (en) * | 2020-05-28 | 2021-12-03 | 上海汽车集团股份有限公司 | Control method of variable air inlet grille |
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| CN111779561B (en) * | 2020-05-29 | 2021-07-16 | 中通客车控股股份有限公司 | Engine cooling system and regulation and control method |
| CN113818952A (en) * | 2020-06-18 | 2021-12-21 | 广州汽车集团股份有限公司 | Method and device for controlling vehicle cooling fan |
| CN111746496A (en) * | 2020-06-29 | 2020-10-09 | 潍柴动力股份有限公司 | Control strategy and control device of fan and driving equipment |
| CN112065562A (en) * | 2020-09-04 | 2020-12-11 | 北京理工大学 | Temperature control system and method of air-cooled engine and terminal equipment |
| CN112065562B (en) * | 2020-09-04 | 2021-08-24 | 北京理工大学 | Temperature control system and method of air-cooled engine and terminal equipment |
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Application publication date: 20180814 |