CN101865016B - Cooling fan system of engine and cooling fan control method used for same - Google Patents
Cooling fan system of engine and cooling fan control method used for same Download PDFInfo
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- CN101865016B CN101865016B CN 201010212109 CN201010212109A CN101865016B CN 101865016 B CN101865016 B CN 101865016B CN 201010212109 CN201010212109 CN 201010212109 CN 201010212109 A CN201010212109 A CN 201010212109A CN 101865016 B CN101865016 B CN 101865016B
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- 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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- 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
- F01P7/12—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers by thermostatic control
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention provides a cooling fan system of an engine and a cooling fan control method used for the same The system comprises a multi-stage cooling fan unit used for cooling an engine, and a fan control unit used for controlling all stages of fans in the multi-stage cooling fan unit to open or close according to the real-time working temperature of the engine. The control method comprises the following steps of: setting the opening or closing temperature values of all stages of fans; acquiring the real-time working temperature of the engine; judging whether the real-time working temperature of the engine reaches the opening and closing temperature values of the all stages of fans or not, and if the real-time working temperature reaches the opening and closing temperature values, sending opening or closing control signals for opening or closing the all stages of fans; and controlling all stages of fans to open or close according to the control signals. The invention can carry out intelligent and reliable fan starting or opening control according to the preset temperature and the real-time working temperature of the engine, is suitable for a plurality of fans or multi-stage running fans, and has the characteristics of simple structure, easy realization, energy saving and noise reduction.
Description
Technical field
The present invention relates to a kind of car engine cooling system, more specifically, the cooling fan system that relates to a kind of motor reaches the cooling fan control method that is used for this system.
Background technique
At present, usually only adopt a fan to carry out the air draft cooling in the engine-cooling system, single fan control is carried out in temperature signal detection and logic control by Engine ECU itself, this kind fan control mode poor reliability, the real-time change that can not adapt to engine temperature, therefore, be necessary to provide a kind of the have fan system of Multi-stage cooling ability and the control method for fan of intelligence.
Summary of the invention
The present invention aims to provide a kind of cooling fan of engine system and is used for the cooling fan control method of this system, and the cooling-down effect of cooling fan that can solve motor is poor, control mode reliability and intelligent low technical problem.
For this reason, according to an aspect of the present invention, provide a kind of cooling fan of engine system, it comprises: multistage cooling fan unit is used to engine cooling; Fan control unit is used for controlling according to the real-time working temperature of motor the open and close of multistage cooling fan unit fans at different levels.
Further, described fan control unit can comprise: fan On/Off temperature is preset the interface, is used for artificial unlatching or the closing temperature value of setting fans at different levels; The signals collecting bus, for the real-time working temperature that gathers motor, this signals collecting bus is connected with the central processing unit signal of motor; The field bus instrument controller is judged the temperature signal that the signals collecting bus collects, and sends the control signal of opening or closing fans at different levels according to judged result; Fan control switch, the control signal of sending according to the field bus instrument controller is controlled the open and close of fans at different levels.
Further, can comprise low temperature refrigeration fan and High-temperature cooling fan in the multistage cooling fan unit; Fan control switch can be relay switch, and the master control contact of this relay switch can be series on the control wiring of field bus instrument controller, and the controlled contact of relay switch can be series on the line between fans at different levels and the working power.
According to another aspect of the present invention, also provide a kind of cooling fan of engine controlling method, it comprises the following steps: to set unlatching or the closing temperature value of fans at different levels; Gather the real-time working temperature of motor; Judge whether the real-time working temperature of motor reaches unlatching or the closing temperature value of described fans at different levels, if reach, then send unlatching or the closing control signal opening or close described fans at different levels; According to the unlatching of described unlatching or the described fans at different levels of closing control SC sigmal control or close.
Further, unlatching or the closing temperature value of setting fans at different levels can comprise: the unlatching intake temperature T1 that sets described motor; Set and open coolant temperature T2; Intake temperature T3 is closed in setting; And set and close coolant temperature T4, wherein, each temperature includes a plurality of level of temperature identical with the progression of multistage cooling fan unit; The real-time working temperature that gathers motor can comprise: the real-time intake temperature Ta that gathers motor; Gather real-time coolant temperature Tc.
Further, open intake temperature T1 and can comprise that low temperature is opened intake temperature T11 and high temperature is opened intake temperature T12, and T11＜T12; Open coolant temperature T2 and can comprise that low temperature is opened coolant temperature T21 and high temperature is opened coolant temperature T22, and T21＜T22; Close intake temperature T3 and can comprise that low temperature is closed intake temperature T31 and high temperature is closed intake temperature T32, and T31＜T11, T32＜T12; Close coolant temperature and can comprise that low temperature is closed coolant temperature T41 and high temperature is closed coolant temperature T42, and T41＜T21, T42＜T22.
Further, high temperature is closed intake temperature T32 and can be lower than described low temperature and close intake temperature T31; High temperature is closed coolant temperature T42 and can be lower than low temperature and close coolant temperature T41.
Further, whether the real-time working temperature of judging motor satisfies the unlatching of described fans at different levels or closes pre-conditioned can comprising the following steps: after engine start, at first judge whether to satisfy low temperature refrigeration fan unlocking condition: if Ta＞T11 or Tc＞T21 then open described low temperature refrigeration fan; When the low temperature refrigeration fan is in independent opening state, judge whether to satisfy High-temperature cooling fan unlocking condition: if Ta＞T12 or Tc＞T22, then open described High-temperature cooling fan, and judge whether to satisfy the low temperature refrigeration fan and close condition: if Ta＜T31 and Tc＜T41, then close the low temperature refrigeration fan, namely close the multistage fan cooling unit; When low temperature refrigeration fan and High-temperature cooling fan all are in opening state, after the real-time working temperature of motor reduces, at first judge whether to satisfy the low temperature refrigeration fan and close condition, if satisfy, then close the low temperature refrigeration fan, worked on by the High-temperature cooling fan, until the real-time working temperature of motor eases down to and satisfies the High-temperature cooling fan and close condition: if Ta＜T32 and Tc＜T42, then close the High-temperature cooling fan, namely close described multistage fan cooling unit; When the real-time working temperature of motor raises again, return the step that judges whether to satisfy low temperature refrigeration fan unlocking condition.
Further, set the unlatching of fans at different levels or close the pre-conditioned setting low temperature that can also comprise and fall temperature T 5 and high temperature falling temperature T 6 after rise, and satisfy: T11-T31=T21-T42=T5; T12-T32=T42-T22=T6.
Further, high temperature falls temperature T 6 after rise can fall temperature T 5 after rise greater than low temperature, and satisfies: T12-T6=T32＜T11-T5=T31; T22-T6=T42＜T21-T5=T41.
The present invention has following technique effect:
Signals collecting bus of the present invention reads temperature signal, can set cooling fan by the adjustment of Temperature Setting interface starts and the halt temperature, and can utilize control unit to carry out intelligence reliably starting fan or unlatching control according to the real-time working temperature of preset temperature and motor, be applicable to a plurality of fans or multistage operation fan, simple in structure, be easy to realize to have the characteristics of energy-saving and noise reduction.
Except purpose described above, feature and advantage, the present invention also has other purpose, feature and advantage.The below is with reference to figure, and the present invention is further detailed explanation.
Description of drawings
Accompanying drawing is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the cooling fan of engine system preferred structure schematic representation of the preferred embodiment of the present invention;
Fig. 2 is the cooling fan of engine system control method schematic flow sheet of the preferred embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Fig. 1 is the cooling fan of engine system preferred structure schematic representation of the embodiment of the invention, as shown in Figure 1, the invention provides a kind of cooling fan of engine system, it comprises: multistage cooling fan unit F, be used to engine cooling, in this cooling fan unit F, can comprise 2 to 3 other fan groups of cooling class, in the present embodiment, can be provided with other fan group of two cooling class of low temperature high temperature, wherein, low temperature refrigeration fan group can comprise fan F1 and fan F2 two desk fans, in order to reach the effect of fast cooling, High-temperature cooling fan group can be by four desk fan F3, F4, F5, F6, and four desk fans can be divided into two groups and control simultaneously; Fan control unit J is used for controlling according to the real-time working temperature of motor the open and close of multistage cooling fan unit F fans at different levels.
In order to control according to the real time temperature of motor the startup of fans at different levels, described fan control unit can comprise: fan On/Off temperature presetting module, can manually set unlatching or the closing temperature value of fans at different levels by this presetting module; The engine temperature signal acquisition module can be for the real-time working temperature that gathers motor; Judge module can be judged the temperature signal that the engine temperature signal acquisition module collects, and sends the control signal of opening or closing described fans at different levels according to judged result; And fan control switch can be controlled according to the control signal that judge module sends the open and close of fans at different levels.
Preferably, in order to simplify the structure of cooling fan of engine system, be easy to the cooling system of available engine is improved, in the present embodiment, above-mentioned engine temperature signal acquisition module can be the signals collecting bus, this signals collecting bus can directly be connected with the ECU of motor, gathers the real-time working temperature value of motor; Judge module can be the field bus instrument controller Z that is connected with the signals collecting bus signals, and, fan On/Off temperature presetting module can be arranged on the upper of field bus instrument controller Z, can display parameters be set at field bus instrument controller Z display screen is set, by this parameter display screen being set can arrange the cooling fan unlatching or close parameter, so that opening the fan of the real-time working temperature of motor and setting or close parameter, judge module is analyzed, thus the unlatching of controlled different other fans of cooling class or close; Fan control switch can be for being connected in the relay switch between field bus instrument controller Z and the cooling fans at different levels unit, in the present embodiment, can adopt three relay switch J1, J2 and J3, wherein, J1 can be used for F1 and the F2 of control low temperature refrigeration fan group, and J2 can be used for any two desk fans of control High-temperature cooling fan group, such as the open and close of F3 and F4, correspondingly, J3 can be used for the other two desk fan F5 of control High-temperature cooling fan group and the open and close of F6.
Fig. 2 is the cooling fan of engine controlling method schematic flow sheet of the preferred embodiment of the present invention, as shown in Figure 2.Another aspect of the present invention provides again a kind of cooling fan of engine controlling method that is applied to above-mentioned cooling fan of engine system, and the method comprises the following steps:
(1) unlatching or the closing temperature value of setting fans at different levels:
In this step, can set the unlatching intake temperature T1 of motor, open coolant temperature T2, close intake temperature T3, and close coolant temperature T4, these parameter values can arrange display screen setting by the parameter on the field bus instrument controller Z, being used for judge module is analyzed according to the real-time working temperature of these parameter values to motor, draw the control signal of opening or closing fans at different levels, wherein, open intake temperature T1 and can comprise that low temperature is opened intake temperature T11 and high temperature is opened intake temperature T12, and T11＜T12, open coolant temperature T2 and can comprise that low temperature is opened coolant temperature T21 and high temperature is opened coolant temperature T22, and T21＜T22, close intake temperature T3 and can comprise that low temperature is closed intake temperature T31 and high temperature is closed intake temperature T32, and T31＜T11, T32＜T12 closes coolant temperature and can comprise that low temperature is closed coolant temperature T41 and high temperature is closed coolant temperature T42, and T41＜T21, T42＜T22.
In fact, high temperature is closed intake temperature T32 and should be lower than low temperature and close intake temperature T31, high temperature and close coolant temperature T42 and should be lower than low temperature and close coolant temperature T41, like this, just can guarantee that the closing temperature of high temperature fan group is lower than the closing temperature of low temperature fan group, after temperature dropped to a certain extent, high temperature fan group after closing, low temperature fan group is just closed, so just in high temperature fan group is in the process of unlatching, make low temperature fan group obtain having a rest, reduce the loss to low temperature fan group.
(2) the real-time working temperature of collection motor:
Can gather by the signals collecting bus that is connected with the ECU of motor the real-time working temperature of motor, comprising real-time intake temperature Ta and the real-time coolant temperature Tc of motor.
(3) judge whether the real-time working temperature of motor reaches unlatching or the closing temperature value of described fans at different levels, if reach, then send unlatching or the closing control signal opening or close fans at different levels:
After engine start, should at first judge whether to satisfy low temperature refrigeration fan unlocking condition: if Ta＞T11 or Tc＞T21 then open F1 and F2 in the low temperature refrigeration fan group;
When low temperature refrigeration fan group is in independent opening state, need to judge whether to satisfy High-temperature cooling fan unlocking condition: Ta＞T12 or Tc＞T22, then open all the fan F3 in the High-temperature cooling fan group, F4, F5, and F6, simultaneously, also may there be the situation that makes the real-time working temperature reduction of motor owing to the unlatching of low temperature refrigeration fan group, so at this moment, also need to judge whether to satisfy the low temperature refrigeration fan and close condition: if Ta＜T31 and Tc＜T41, then close low temperature refrigeration fan group F1 and F2, at this moment, each fan in the multistage fan cooling unit all is in closed condition;
When low temperature refrigeration fan group and High-temperature cooling fan group all are in opening state, can produce apparent in view cooling-down effect, because the closing temperature of predefined low temperature refrigeration fan group is higher than the closing temperature of High-temperature cooling fan group, so should again judge whether to satisfy the condition of closing of above-mentioned low temperature refrigeration fan group, if the real-time working temperature of motor be reduced to satisfy low temperature refrigeration fan group the condition of closing, then low temperature refrigeration fan group is closed, make it be in resting state, there is High-temperature cooling fan group to continue motor is cooled, because the cooling intensity of High-temperature cooling fan group is larger, the real-time working temperature of motor still can be in the state of decline, at this moment, then need to judge whether to satisfy the High-temperature cooling fan and close condition: if Ta＜T32 and Tc＜T42, then close whole fan F3 in the described High-temperature cooling fan group, F4, F5, and F6, at this moment, each fan in the multistage fan cooling unit all is in closed condition; But, at this moment, field bus instrument controller Z does not quit work yet, because motor is still in running order, be under the state of closing at fans at different levels, the real-time working temperature of motor may raise again, so, then need to return again the step that judges whether to satisfy low temperature refrigeration fan unlocking condition, carry out the cooling fan of a new round and open or close judgement.
In order to prevent owing to after the engine shutdown; fan is still worked and is caused the power shortage of vehicle battery; in the present embodiment; can set when the rotating speed of motor is lower than 300 rev/mins; the multistage fan unit is closed; make the outage of multistage fan unit, and then prevent fan loss to storage battery behind engine shutdown.
In fact, opening intake temperature T11 at low temperature closes between the intake temperature T31 with low temperature and low temperature is opened coolant temperature T21 and low temperature and closed and should have a low temperature falling temperature gap T5 between the coolant temperature T41, namely opening intake temperature T11 and low temperature from low temperature opens coolant temperature T21 and is reduced to low temperature and closes intake temperature T31 and low temperature and close temperature difference between the coolant temperature T41, this temperature value also can arrange display screen setting by the parameter on the field bus instrument controller Z, and its value can be set according to concrete actual conditions, to reach preferably cooling-down effect as target.After low temperature refrigeration fan group is opened, in case the real-time working temperature of motor is reduced to and low temperature is opened intake temperature T11 and low temperature and opened difference between the coolant temperature T21 when reaching low temperature and falling temperature gap T5 after rise, namely during T11-T31=T21-T42=T5, then judged by judge module to draw the control signal that low temperature refrigeration fan group is closed.Correspondingly, high temperature is opened intake temperature T12 and high temperature is closed between the intake temperature T32, and high temperature is opened coolant temperature T22 and is closed with high temperature and also can have high temperature falling temperature gap T6, i.e. a T11-T31=T21-T42=T5 between the coolant temperature T42; T12-T32=T42-T22=T6, it is large that the ratio low temperature that this high temperature falling temperature gap T6 can arrange falls temperature gap T5 after rise, preferably can be greatly to the closing temperature that makes High-temperature cooling fan group under open temp, namely should satisfy T12-T6=T32＜T11-T5=T31; T22-T6=T42＜T21-T5=T41 like this, just can guarantee at first low temperature refrigeration fan group to be closed after temperature reduces, and makes the low temperature refrigeration fan group can rest a period of time, avoids the excessive work of low temperature refrigeration fan group.
Below, will concrete structure and the working procedure of the described cooling fan of engine of present embodiment system be described in detail:
With reference to Fig. 1, field bus instrument controller Z is connected with Engine ECU by the signals collecting bus, and the low temperature control pin Z1 of field bus instrument controller Z is connected the 86 pin ground connection of J1 with 85 pin of the relay switch J1 of low temperature fan group, 30 pin connect the positive pole of power supply E, and 87 pin meet low speed fan F1 and F2; The high-temperature control pin Z2 of field bus instrument controller Z and 85 pin of the relay switch J2 of high temperature fan group are connected 85 pin and are connected with relay switch J3, it is anodal that the equal ground connection of 86 pin of J2 and J3,30 pin all meet power supply E, 87 pin wind-receiving fan F3 and the F4 of J2,87 pin wind-receiving fan F5 and the F6 of J3.
Behind engine start, field bus instrument controller Z reads the real-time working temperature value of motor by the signals collecting bus, comprises real-time intake temperature parameter Ta and real-time coolant temperature parameter Tc:
When Ta＞T11 or Tc＞T21, Z1 exports high level, relay J 1 closure, and fan F1, F2 start; After a period of time, if Ta＞T12 or Tc＞T22, Z2 exports high level, relay J 2, J3 closure, and fan F3, F4, F5, F6 start; If Ta＜T31 and Tc＜T41, i.e. Ta＜T11-T5 and Tc＜T21-T5, Z1 output low level then, relay switch J1 disconnects, and fan F1 and F2 stop;
When fan F1, F2, F3, F4, F5, F6 all open, be that low temperature refrigeration combination of fans High-temperature cooling fan group is when all opening, if Ta＜T32 and Tc＜T42, when being Ta＜T12-T6 and Tc＜T22-T6, the Z2 output low level, relay switch J2 and J3 all disconnect, and fan F3, F4, F5, the F6 of High-temperature cooling fan group all stop; If satisfy Ta＜T31 and Tc＜T41 this moment again, i.e. Ta＜T11-T5 and Tc＜T21-T5, Z1 output low level then, relay switch J1 disconnects, and fan F1 and F2 stop, and low temperature refrigeration fan group quits work.At this moment, because motor is still in running order, field bus instrument controller Z does not quit work yet, be under the state of closing at fans at different levels, the real-time working temperature of motor may raise again, so, then need to return again the step that judges whether to satisfy low temperature refrigeration fan unlocking condition, carry out the cooling fan of a new round and open or close judgement.
The present invention adopts the signals collecting bus to read temperature signal, can adjust and set cooling fan startup and halt temperature, and intelligence is reliable, and for a plurality of fans or multistage operation fan, energy-saving and noise reduction.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a cooling fan of engine system is characterized in that, comprising:
Multistage cooling fan unit is used to described engine cooling;
Fan control unit, be used for controlling according to the real-time working temperature of described motor the open and close of described multistage cooling fan unit fans at different levels, described fan control unit also is used for setting unlatching or the closing temperature value of described fans at different levels and the real-time working temperature that gathers described motor, and described unlatching or closing temperature value comprise:
The unlatching intake temperature T1 of described motor;
Open coolant temperature T2;
Close intake temperature T3; And
Close coolant temperature T4,
Wherein, each described temperature includes a plurality of level of temperature identical with the progression of described multistage cooling fan unit;
The real-time working temperature of described motor comprises:
The real-time intake temperature Ta of described motor;
Real-time coolant temperature Tc;
Described unlatching intake temperature T1 comprises that low temperature is opened intake temperature T11 and high temperature is opened intake temperature T12, and T11＜T12;
Described unlatching coolant temperature T2 comprises that low temperature is opened coolant temperature T21 and high temperature is opened coolant temperature T22, and T21＜T22;
The described intake temperature T3 that closes comprises that low temperature is closed intake temperature T31 and high temperature is closed intake temperature T32, and T31＜T11, T32＜T12;
The described coolant temperature of closing comprises that low temperature is closed coolant temperature T41 and high temperature is closed coolant temperature T42, and T41＜T21, T42＜T22.
2. cooling fan of engine according to claim 1 system is characterized in that described fan control unit comprises:
Fan On/Off temperature is preset the interface, is used for artificial unlatching or the closing temperature value of setting described fans at different levels;
The signals collecting bus, for the real-time working temperature that gathers described motor, described signals collecting bus is connected with central processing unit (ECU) signal of described motor;
The field bus instrument controller is judged the temperature signal that described signals collecting bus collects, and sends the control signal of opening or closing described fans at different levels according to judged result;
Fan control switch, the control signal of sending according to described field bus instrument controller is controlled the open and close of described fans at different levels.
3. cooling fan of engine according to claim 2 system is characterized in that,
Comprise low temperature refrigeration fan (F1, F2) and High-temperature cooling fan (F3, F4, F5, F6) in the described multistage cooling fan unit;
Described fan control switch is relay switch, and the master control contact of described relay switch is series on the control wiring of described field bus instrument controller, and the controlled contact of described relay switch is series on the line between described fan at different levels and the working power (E).
4. a cooling fan of engine controlling method that is applied in the claims 1 to 3 each described cooling fan of engine system is characterized in that, comprises the following steps:
Set unlatching or the closing temperature value of described fans at different levels;
Gather the real-time working temperature of described motor;
Judge whether the real-time working temperature of described motor reaches unlatching or the closing temperature value of described fans at different levels, if reach, then send unlatching or the closing control signal opening or close described fans at different levels;
According to the unlatching of described unlatching or the described fans at different levels of closing control SC sigmal control or close;
Unlatching or the closing temperature value of setting described fans at different levels comprise:
Set the unlatching intake temperature T1 of described motor;
Set and open coolant temperature T2;
Intake temperature T3 is closed in setting; And
Coolant temperature T4 is closed in setting,
Wherein, described each temperature includes a plurality of level of temperature identical with the progression of described multistage cooling fan unit;
The real-time working temperature that gathers described motor comprises:
Gather the real-time intake temperature Ta of described motor;
Gather real-time coolant temperature Tc;
Described unlatching intake temperature T1 comprises that low temperature is opened intake temperature T11 and high temperature is opened intake temperature T12, and T11＜T12;
Described unlatching coolant temperature T2 comprises that low temperature is opened coolant temperature T21 and high temperature is opened coolant temperature T22, and T21＜T22;
The described intake temperature T3 that closes comprises that low temperature is closed intake temperature T31 and high temperature is closed intake temperature T32, and T31＜T11, T32＜T12;
The described coolant temperature of closing comprises that low temperature is closed coolant temperature T41 and high temperature is closed coolant temperature T42, and T41＜T21, T42＜T22.
5. cooling fan of engine controlling method according to claim 4 is characterized in that,
Described high temperature is closed intake temperature T32 and is lower than described low temperature and closes intake temperature T31;
Described high temperature is closed coolant temperature T42 and is lower than described low temperature and closes coolant temperature T41.
6. cooling fan of engine controlling method according to claim 5 is characterized in that, judges whether the real-time working temperature of described motor satisfies the unlatching of described fans at different levels or close pre-conditioned comprising the following steps:
After described engine start, at first judge whether to satisfy low temperature refrigeration fan unlocking condition:
If Ta＞T11 or Tc＞T21 then open described low temperature refrigeration fan (F1, F2);
When described low temperature refrigeration fan is in independent opening state, judge whether to satisfy High-temperature cooling fan unlocking condition:
If Ta＞T12 or Tc＞T22 then open described High-temperature cooling fan (F3, F4, F5, F6), and
Judge whether to satisfy the low temperature refrigeration fan and close condition:
If Ta＜T31 and Tc＜T41 then close described low temperature refrigeration fan (F1, F2), namely the fans at different levels in the described multistage fan cooling unit all are in closed condition;
When described low temperature refrigeration fan and described High-temperature cooling fan all are in opening state, after the real-time working temperature of described motor reduces, at first judge whether to satisfy described low temperature refrigeration fan and close condition, if satisfy, then close the low temperature refrigeration fan, worked on by described High-temperature cooling fan, until the real-time working temperature of described motor eases down to and satisfies the High-temperature cooling fan and close condition:
If Ta＜T32 and Tc＜T42 then close described High-temperature cooling fan (F3, F4, F5, F6), namely the fans at different levels in the described multistage fan cooling unit all are in closed condition;
When the real-time working temperature of described motor raises again, return the described step that judges whether to satisfy low temperature refrigeration fan unlocking condition.
7. each described cooling fan of engine controlling method in 6 according to claim 4 is characterized in that, sets the unlatching of described fans at different levels or closes pre-conditioned also comprising and set that low temperature falls temperature T 5 after rise and high temperature falls temperature T 6 after rise, and satisfy:
T11-T31＝T21-T41＝T5；
T12-T32＝T42-T22＝T6。
8. cooling fan of engine controlling method according to claim 7 is characterized in that, described high temperature falls temperature T 6 after rise and falls temperature T 5 after rise greater than described low temperature, and satisfies:
T12-T6＝T32＜T11-T5＝T31；
T22-T6＝T42＜T21-T5＝T41。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010212109 CN101865016B (en) | 2010-06-29 | 2010-06-29 | Cooling fan system of engine and cooling fan control method used for same |
| PCT/CN2011/076037 WO2012000397A1 (en) | 2010-06-29 | 2011-06-21 | Cooling fan system of engine and cooling fan control method for the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010212109 CN101865016B (en) | 2010-06-29 | 2010-06-29 | Cooling fan system of engine and cooling fan control method used for same |
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| CN101865016A CN101865016A (en) | 2010-10-20 |
| CN101865016B true CN101865016B (en) | 2013-01-23 |
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| WO (1) | WO2012000397A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865016B (en) * | 2010-06-29 | 2013-01-23 | 三一汽车起重机械有限公司 | Cooling fan system of engine and cooling fan control method used for same |
| JP2012145021A (en) | 2011-01-11 | 2012-08-02 | Mitsubishi Heavy Ind Ltd | Cooling device for engine |
| CN102434477A (en) * | 2011-10-28 | 2012-05-02 | 国家电网公司运行分公司银川管理处 | System and method for controlling air cooling device to start and stop in outdoor converter valve cooling system of converter station |
| CN104295357B (en) * | 2014-09-05 | 2017-09-12 | 龙口中宇热管理系统科技有限公司 | Radiator and its control method |
| CN106150652A (en) * | 2016-06-27 | 2016-11-23 | 广东康菱动力科技有限公司 | Oil-electric engine group control method and 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 |
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| US4590772A (en) * | 1983-10-07 | 1986-05-27 | Nissan Motor Co., Ltd. | Air conditioning system for vehicle |
| US4651922A (en) * | 1985-05-15 | 1987-03-24 | Toyota Jidosha Kabushiki Kaisha | Apparatus for controlling rotational speed of radiator fan |
| US4658595A (en) * | 1984-11-29 | 1987-04-21 | Nissan Motor Co., Ltd. | Cooling system for radiator and condenser of vehicles with an air conditioner and method of operating the same |
| JP2002004860A (en) * | 2000-06-27 | 2002-01-09 | Nissan Motor Co Ltd | Cooling device for hybrid electric vehicle |
| DE10257642A1 (en) * | 2002-12-10 | 2004-07-08 | Robert Bosch Gmbh | Motor vehicle double blower fan device wherein the two blowers can be controlled independently by use of a fan control unit and a temperature regulated switch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005030363A (en) * | 2003-07-11 | 2005-02-03 | Denso Corp | Motor-driven fan system for vehicle |
| CN101865016B (en) * | 2010-06-29 | 2013-01-23 | 三一汽车起重机械有限公司 | Cooling fan system of engine and cooling fan control method used for same |
-
2010
- 2010-06-29 CN CN 201010212109 patent/CN101865016B/en not_active Expired - Fee Related
-
2011
- 2011-06-21 WO PCT/CN2011/076037 patent/WO2012000397A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4590772A (en) * | 1983-10-07 | 1986-05-27 | Nissan Motor Co., Ltd. | Air conditioning system for vehicle |
| US4658595A (en) * | 1984-11-29 | 1987-04-21 | Nissan Motor Co., Ltd. | Cooling system for radiator and condenser of vehicles with an air conditioner and method of operating the same |
| US4651922A (en) * | 1985-05-15 | 1987-03-24 | Toyota Jidosha Kabushiki Kaisha | Apparatus for controlling rotational speed of radiator fan |
| JP2002004860A (en) * | 2000-06-27 | 2002-01-09 | Nissan Motor Co Ltd | Cooling device for hybrid electric vehicle |
| DE10257642A1 (en) * | 2002-12-10 | 2004-07-08 | Robert Bosch Gmbh | Motor vehicle double blower fan device wherein the two blowers can be controlled independently by use of a fan control unit and a temperature regulated switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101865016A (en) | 2010-10-20 |
| WO2012000397A1 (en) | 2012-01-05 |
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