CN101376337B - Cooling system for hybrid power automobile and control method thereof - Google Patents
Cooling system for hybrid power automobile and control method thereof Download PDFInfo
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- CN101376337B CN101376337B CN2007101476477A CN200710147647A CN101376337B CN 101376337 B CN101376337 B CN 101376337B CN 2007101476477 A CN2007101476477 A CN 2007101476477A CN 200710147647 A CN200710147647 A CN 200710147647A CN 101376337 B CN101376337 B CN 101376337B
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Abstract
The invention provides a cooling system of a hybrid power automobile, which comprises an air-conditioner with an air-conditioner controller, a radiator of electrical parts with a temperature sensor, an engine radiator, a condensating fan and a cooling fan. The condensating fan and the cooling fan are used for reducing the temperatures at the inlet parts of a condensator and the engine radiator in the air-conditioner respectively; wherein the cooling system further comprises a cooling controller which is connected with the air-conditioner controller in the air-conditioner, the temperature sensor in the radiator of the electrical part, the cooling fan and the condensating fan respectively; The cooling controller can control the operation of the condensating fan and the cooling fan based on the operation mode of the air-conditioner, which is transmitted from the air-conditioner controller, the temperature value of the cooling liquid in the radiator of the electrical part, which is sensed by the temperature sensor, or the external temperature value which is transmitted by the air-conditioner controller, the temperature value of the cooling liquid in the engine radiator, and the operating condition of the engine. The cooling system can minimize the power consumption on the premise that the requirements for the cooling system are met.
Description
Technical field
The present invention relates to a kind of cooling system and control method, more specifically, relate to a kind of cooling system and control method thereof of hybrid vehicle.
Background technology
The cooling system of existing hybrid vehicle generally includes: electronic part radiator is used to make the cooling water expansion tank and the air of the electronic part of cooling to carry out interchange of heat, to cool off this part cooling water expansion tank; Engine radiator is used to make the cooling water expansion tank of cooled engine and air to carry out interchange of heat, to cool off this part cooling water expansion tank; Condenser is used for making the high temperature refrigerant of air-conditioning and air to carry out interchange of heat, to cool off said refrigerant.Said electronic part is the electronic part relevant with the control of electrical motor, for example electric machine controller, air-conditioner controller etc.Said cooling system also comprises condenser fan and cooling fan, is respectively applied for the inlet temperature that reduces said condenser and engine radiator, to improve the performance of said engine radiator and condenser.
Under the normal circumstances; For with electronic part, driving engine and refrigerant cools to suitable temperature; The temperature that on-cycle is used to cool off the cooling water expansion tank of electronic part in the said electronic part radiator should remain on below 50 ℃; The temperature of refrigerant should be about 60 ℃ in the said condenser, and the temperature that on-cycle is used for the cooling water expansion tank of cooled engine in the said engine radiator should remain on below 98 ℃.Therefore, under the normal circumstances, the power minimum that said electronic part radiator is required only need just can satisfy electronic part radiator through the natural wind that running car produced; Can be under the situation that can't satisfy normal demand and cool off through controlling condenser fan and cooling fan to satisfy the needs of cooling system at natural wind.In the prior art, cooling controller (ECU) controls respectively condenser fan and cooling fan to satisfy the requirement of whole cooling system according to the temperature of refrigerant fluid in the temperature of electronic part cooling water expansion tank and the engine radiator respectively.
Though cooling system of the prior art can reach the purpose of the electronic partial sum driving engine of cooling; But it can only be respectively controls condenser fan and cooling fan respectively according to the temperature value of refrigerant fluid in the temperature value of electronic part cooling water expansion tank and the engine radiator; The mode of this separately control is owing to fail to consider the state of car load; May cause under the situation of the unnecessary unlatching of cooling fan and condenser fan and open, thereby cause the waste of power consumption.
Summary of the invention
The objective of the invention is to cause the defective of power wastage, a kind of cooling system and control method thereof that on the basis of the needs that can satisfy cooling system, reduces the car load power consumption is provided for the cooling system mode that overcomes prior art.
The present invention provides a kind of cooling system of hybrid vehicle; Said cooling system comprises the air-conditioning with air-conditioner controller, electronic part radiator, engine radiator, condenser fan and the cooling fan with temperature sensor; Said condenser fan and cooling fan are respectively applied for the temperature that reduces the entrance of condenser and engine radiator in the air-conditioning; Wherein, Said cooling system also comprises cooling controller; Said cooling controller respectively with air-conditioner controller, electronic part radiator in temperature sensor, cooling fan and condenser fan be electrically connected; The temperature value and the engine behavior of refrigerant fluid in the external temperature value that the temperature value of refrigerant fluid or air-conditioner controller send in the air-conditioning work mode that said cooling controller sends according to air-conditioner controller simultaneously, the electronic part radiator of temperature sensor senses, the engine radiator, the work of control cooling fan and condenser fan.
The present invention also provides a kind of control method that is used for the hybrid vehicle cooling system may further comprise the steps: the mode of operation of obtaining the mode of operation and the air-conditioning of driving engine; Gather the temperature of refrigerant fluid in the electronic part radiator or obtain external temperature; Obtain the temperature of refrigerant fluid in the engine radiator; It is characterized in that; Further comprising the steps of: simultaneously whether in running order whether and air-conditioning be in refrigerating state, the work of control cooling fan and condenser fan according to the temperature value of refrigerant fluid in the temperature value of refrigerant fluid in the electronic part radiator, the engine radiator or external temperature value, driving engine.
When cooling system that uses hybrid vehicle provided by the invention and control method thereof; Cooling controller in the cooling system jointly controls cooling fan and condenser fan according to the temperature value of refrigerant fluid in the temperature value of refrigerant fluid in the electronic part radiator and the engine radiator simultaneously; Rather than like separately control in the prior art; Like this through taking all factors into consideration the state of temperature of each several part in the whole hybrid vehicle; Make whole control process refinement more, can under the prerequisite that satisfies the cooling system demand, make power consumption minimum.And when the temperature sensor in the electronic part radiator damages, cooling system provided by the invention and control method thereof still can realize the heat radiation to hybrid vehicle.
Description of drawings
Fig. 1 is the block diagram of the cooling system of hybrid vehicle provided by the invention;
Fig. 2 is the diagram of circuit of the cooling control method of hybrid vehicle provided by the invention;
Fig. 3 is the diagram of circuit of detected temperatures sensor in the hybrid vehicle provided by the invention;
Fig. 4 be provided by the invention when temperature sensor damages the diagram of circuit of the cooling control method of hybrid vehicle.
The specific embodiment
Be described in detail with reference to the attached drawings the present invention below.
As shown in Figure 1, the control method that is used for the hybrid vehicle cooling system provided by the present invention may further comprise the steps: the mode of operation of obtaining the mode of operation and the air-conditioning 1 of driving engine; Gather the temperature of refrigerant fluid in the electronic part radiator 2 or obtain external temperature; Obtain the temperature of refrigerant fluid in the engine radiator 3; It is characterized in that; Further comprising the steps of; Simultaneously whether in running order whether and air-conditioning 1 be in refrigerating state, the work of control cooling fan 5 and condenser fan 4 according to the temperature value of refrigerant fluid in the temperature value of refrigerant fluid in the electronic part radiator 2 or external temperature value, the engine radiator 3, driving engine.
Obtain the step of mode of operation of mode of operation and the air-conditioning of driving engine in the said method and obtain the whether in running order information of driving engine in can controller (not shown), and from air-conditioner controller, obtain air-conditioning 1 and whether be in the information of refrigerating state and accomplish through the driving engine from transmitting set.Detection of engine whether realize by the in running order ignition signal that also can pass through the detection of engine high-tension coil.
Gather in the temperature or external temperature step of refrigerant fluid in the electronic part radiator 2 in the said method; The temperature of refrigerant fluid can record through the temperature sensor in the electronic part radiator 2 in the electronic part radiator 2, and external temperature can obtain through the air-conditioner controller in the air-conditioning.Obtain in the said method in the step of the temperature of refrigerant fluid in the engine radiator 3, the temperature of refrigerant fluid then can obtain from the controller of driving engine in the engine radiator 3.
After obtaining the whether in running order and air-conditioning of the temperature value, driving engine of refrigerant fluid in temperature value or external temperature value, the engine radiator 3 of refrigerant fluid in the above-mentioned electronic part radiator 2 and whether being in four parameters of refrigerating state, the invention provides the method for to control respectively condenser fan 4 and cooling fan 5 according to these parameters.
Because when driving engine is in starting state or air-conditioning 1 and is in refrigerating state; Condenser fan 4 can be in opening always; Need not control condenser fan 4 this moment, and when driving engine was in closed condition and air-conditioning 1 and is in non-refrigerating state, condenser fan 4 can be in closed condition; Satisfy cooling requirement thereby need control with in good time unlatching condenser fan 4 this moment, and also can be different to the control of cooling fan 5.
The method of control cooling fan 5 is: (1) is when driving engine is in starting state or air-conditioning 1 when being in refrigerating state: if when the temperature value of refrigerant fluid is in the low-temperature space of refrigerant fluid in the electronic part radiator 2; Then have only when the temperature value of refrigerant fluid in the engine radiator 3 is spent more than or equal to 92; Just control cooling fan 5 and open, otherwise control cooling fan 5 is closed; If the temperature value of refrigerant fluid is in the middle warm area of refrigerant fluid or when the high-temperature zone of refrigerant fluid, then controls cooling fan 5 unlatchings in the electronic part radiator 2; (2) when driving engine is in closed condition and air-conditioning 1 and is in non-refrigerating state: if when the temperature value of refrigerant fluid is in the low-temperature space of refrigerant fluid in the electronic part radiator 2; Then have only when the temperature value of refrigerant fluid in the engine radiator 3 is spent more than or equal to 98; Control cooling fan 5 is opened, otherwise control cooling fan 5 is closed; If the temperature value of refrigerant fluid is in the middle warm area of refrigerant fluid or when the high-temperature zone of refrigerant fluid, then controls cooling fan 5 unlatchings in the electronic part radiator 2.Through using this control method control cooling fan 5, can be in satisfying hybrid vehicle scientifically control the switch of cooling fan 5 under the prerequisite of the cooling requirement of each several part, thereby reduce power consumption.
Preferably, the method for said control cooling fan 5 also comprises: when the temperature value that is in refrigerant fluid in high-temperature zone or the engine radiator 3 when the temperature value of refrigerant fluid in the electronic part radiator 2 is spent more than or equal to 98, and control cooling fan 5 high-grade unlatchings; When if the temperature value that the temperature value of refrigerant fluid is in refrigerant fluid in middle warm area and the engine radiator 3 of refrigerant fluid in the electronic part radiator 2 is spent less than 98, control cooling fan 5 low-grade unlatchings; When driving engine is in starting state or air-conditioning 1 and is in refrigerating state; When if the temperature value of refrigerant fluid is in the low-temperature space of refrigerant fluid in the electronic part radiator 2; Then when the temperature value of refrigerant fluid in the engine radiator 3 more than or equal to 92 and when spending less than 98, then control cooling fan 5 low-grade unlatchings.Like this cooling fan 5 has been done more careful control in the operational mode under the opening, thereby made power consumption become lower.
Therefore, as shown in Figure 2, according to preferred implementation, the method for said control cooling fan 5 is:
(1) when driving engine is in starting state or air-conditioning 1 and is in refrigerating state:
(a) if when the temperature value of refrigerant fluid is in the low-temperature space of refrigerant fluid in the electronic part radiator 2, then when the temperature value of refrigerant fluid in the engine radiator 3 is spent more than or equal to 98, control cooling fan 5 high-grade unlatchings; When the temperature value of refrigerant fluid in the engine radiator 3 is spent more than or equal to 92 and less than 98, spending, control cooling fan 5 low-grade unlatchings; Otherwise control cooling fan 5 is closed;
(b) if when the temperature value of refrigerant fluid is in the middle warm area of refrigerant fluid in the electronic part radiator 2, then when the temperature value of refrigerant fluid in the engine radiator 3 is spent more than or equal to 98, control cooling fan 5 high-grade unlatchings; Otherwise, control cooling fan 5 low-grade unlatchings;
(c), then control cooling fan 5 high-grade unlatchings if when the temperature value of refrigerant fluid is in the high-temperature zone of refrigerant fluid in the electronic part radiator 2.
(2) when driving engine is in closed condition and air-conditioning 1 and is in non-refrigerating state:
(a) if when the temperature value of refrigerant fluid is in the low-temperature space of refrigerant fluid in the electronic part radiator 2, then when the temperature value of refrigerant fluid in the engine radiator 3 is spent more than or equal to 98, control cooling fan 5 high-grade unlatchings; Otherwise control cooling fan 5 is closed;
(b) if when the temperature value of refrigerant fluid is in the middle warm area of refrigerant fluid in the electronic part radiator 2, then when the temperature value of refrigerant fluid in the engine radiator 3 is spent more than or equal to 98, control cooling fan 5 high-grade unlatchings; Otherwise, control cooling fan 5 low-grade unlatchings;
(c), then control cooling fan 5 high-grade unlatchings if when the temperature value of refrigerant fluid is in the high-temperature zone of refrigerant fluid in the electronic part radiator 2.
Mode that cause being adopted constantly changes because the temperature value of electronic part refrigerant fluid changes too frequent in order to prevent; Said control method also comprises when two differential gaps between the middle warm area of the low-temperature space of refrigerant fluid and refrigerant fluid, between the high-temperature zone of the middle warm area of refrigerant fluid and refrigerant fluid of the temperature value of refrigerant fluid in the electronic part radiator 2; If when initial control; When promptly cooling fan 5 being used said control method, the pairing control method of the hithermost temperature range of temperature value of refrigerant fluid is controlled cooling fan 5 in selection and the current electronic part radiator 2; If after initial control, then continue to continue to use the control method of using before the temperature value variation and control cooling fan 5.The low-temperature space of said refrigerant fluid is the interval that temperature value is less than or equal to 30 degree; Said middle warm area at refrigerant fluid is the interval that temperature value is in 32～39 degree; Said high-temperature zone at refrigerant fluid is the interval of temperature value more than or equal to 42 degree.
The process that obtains the temperature value of refrigerant fluid in the electronic part radiator 2 through temperature sensor is known for those skilled in the art, and wherein temperature sensor is arranged in electronic part radiator, can select the temperature sensor of types such as thermocouple, thermistor-type for use.Because temperature sensor might damage in the course of the work; Therefore; The present invention also provides and has been used for the whether additional step of normal operation of detected temperatures sensor---temperature sensor detects step, and said step comprises: receive the temperature value that this temperature sensor sends, and whether a period of time (for example 30 seconds) is not between estimating temperature scope (between 20～65 degree) to judge this temperature value; If confirm that then this temperature sensor damages.As shown in Figure 3, the concrete steps that temperature sensor detects a specific embodiment of step comprise: receive the temperature value that temperature sensor sends, and judge that this temperature value is whether in the estimating temperature scope; If, then do not pick up counting, and continue to receive the temperature value that temperature sensor sends in said scope; If this temperature value is in the estimating temperature scope, if then timing zero clearing is not in the estimating temperature scope; Then continue timing; And whether judge between institute's timing greater than 30 seconds, if greater than 30 seconds, confirm that then temperature sensor damages.When definite temperature sensor damages; As shown in Figure 4; The external temperature value that said method can also be gathered based on air-conditioning 1 self and be the temperature of refrigerant fluid in the electronic part radiator 2 with its equivalence, for example low-temperature space (the being less than or equal to 16 degree) equivalence with external temperature is the low-temperature space (being less than or equal to 30 spends) of refrigerant fluid in the electronic part radiator.
As stated; When said temperature sensor damages; Said method comprises that also the external temperature value of gathering according to said air-conditioning 1 controls the work of cooling fan 5, and (1) is when driving engine is in starting state or air-conditioning 1 when being in refrigerating state: if when the external temperature value is in the low-temperature space of external temperature, then have only when the temperature value of refrigerant fluid in the engine radiator 3 is spent more than or equal to 92; Just control cooling fan 5 and open, otherwise control cooling fan 5 is closed; If when the external temperature value is in the high-temperature zone of middle warm area or external temperature of external temperature, then controls cooling fan 5 and open; (2) when driving engine is in closed condition and air-conditioning 1 and is in non-refrigerating state: if when the external temperature value is in the low-temperature space of external temperature; Then have only when the temperature value of refrigerant fluid in the engine radiator 3 is spent more than or equal to 98; Control cooling fan 5 is opened, otherwise control cooling fan 5 is closed; If when the external temperature value is in the high-temperature zone of middle warm area or external temperature of external temperature, then controls cooling fan 5 and open.
Wherein, when the temperature value that is in refrigerant fluid in high-temperature zone or the engine radiator 3 of external temperature when the external temperature value is spent more than or equal to 98, control cooling fan 5 high-grade unlatchings; If the external temperature value is in the temperature value of refrigerant fluid in middle warm area and the engine radiator 3 of external temperature when spending less than 98, control cooling fan 5 low-grade unlatchings; When driving engine is in starting state or air-conditioning 1 and is in refrigerating state; When if the temperature value of refrigerant fluid is in the low-temperature space of external temperature in the electronic part radiator 2; Then when the temperature value of refrigerant fluid in the engine radiator 3 more than or equal to 92 and when spending less than 98, then control cooling fan 5 low-grade unlatchings.
With above-mentioned the same; Mode that cause being adopted constantly changes because the external temperature value changes too frequent in order to prevent; Control method provided by the invention also comprises between the external temperature value is in the middle warm area of low-temperature space and external temperature of external temperature, during two differential gaps between the high-temperature zone of the middle warm area of external temperature and external temperature; If when initial control, select to control cooling fan 5 with the pairing control method of the hithermost temperature range of current external temperature value; If after initial control, then continue to continue to use the control method of using before the temperature value variation and control cooling fan 5.The low-temperature space of said external temperature is the interval that temperature value is less than or equal to 16 degree; The middle warm area of said external temperature is the interval that temperature value is in 20～24 degree; The high-temperature zone of said external temperature is the interval of temperature value more than or equal to 28 degree.
As shown in Figure 4, when the temperature sensor in the electronic part radiator damaged, the method for control cooling fan 5 was:
(1) when driving engine is in starting state or air-conditioning 1 and is in refrigerating state:
(a), when the temperature value of refrigerant fluid in the engine radiator 3 is spent more than or equal to 98, then control cooling fan 5 high-grade unlatchings if the external temperature value is less than or equal to 16 when spending (low-temperature space that is equivalent to refrigerant fluid); When the temperature value of refrigerant fluid in the engine radiator 3 is spent more than or equal to 92 and less than 98, spending, control cooling fan 5 low-grade unlatchings; Otherwise control cooling fan 5 is closed;
(b) if the external temperature value when 20～24 degree (the middle warm area that is equivalent to refrigerant fluid), then when the temperature value of refrigerant fluid in the engine radiator 3 is spent more than or equal to 98, is controlled cooling fan 5 high-grade unlatchings; Otherwise, control cooling fan 5 low-grade unlatchings;
(c) if the external temperature value when (high-temperature zone that is equivalent to refrigerant fluid), is then controlled cooling fan 5 high-grade unlatchings more than or equal to 28 degree;
(2) when driving engine is in closed condition and air-conditioning 1 and is in non-refrigerating state:
(a) if the external temperature value is less than or equal to 16 degree when (low-temperature space that is equivalent to refrigerant fluid), then when the temperature value of refrigerant fluid in the engine radiator 3 is spent more than or equal to 98, the 5 high-grade unlatchings of control cooling fan; Otherwise control cooling fan 5 is closed;
(b) if the external temperature value when 20～24 degree (the middle warm area that is equivalent to refrigerant fluid), then when the temperature value of refrigerant fluid in the engine radiator 3 is spent more than or equal to 98, is controlled cooling fan 5 high-grade unlatchings; Otherwise, control cooling fan 5 low-grade unlatchings;
(c) if the external temperature value when (high-temperature zone that is equivalent to refrigerant fluid), is then controlled cooling fan 5 high-grade unlatchings more than or equal to 28 degree.Even temperature sensor damages in the electronic like this part radiator 2, this cooling control method still can correctly be controlled cooling fan 5 and condenser fan 4.
The present invention controls condenser fan 4 according to the temperature value of refrigerant fluid in the mode of operation of the mode of operation of driving engine, air-conditioning 1 and the engine radiator 3; When driving engine is in starting state or air-conditioning 1 and is in refrigerating state; Condenser fan 4 can be in opening always, and need not control condenser fan 4 this moment; And when driving engine was in closed condition and air-conditioning 1 and is in non-refrigerating state, condenser fan 4 can be in closed condition, and need control to satisfy cooling requirement this moment to condenser fan 4.Therefore, the method for control condenser fan 4 comprises: when driving engine is in closed condition and air-conditioning 1 and is in non-refrigerating state, as long as the temperature value of refrigerant fluid is more than or equal to 98 degree in the engine radiator 3, just controls condenser fan 4 and open.
The temperature value of refrigerant fluid and the temperature range of external temperature value institute can be confirmed according to the concrete model of driving engine, the protection temperature value of electric machine controller SPM (IPM) partly in above-mentioned electronic part radiator 2 and the engine radiator 3, are not limited to above-mentioned actual temp interval.
In addition; As shown in Figure 1; The present invention also provides a kind of cooling system of hybrid vehicle; Said cooling system comprises the air-conditioning 1 with air-conditioner controller, electronic part radiator 2, engine radiator 3, condenser fan 4 and the cooling fan 5 with temperature sensor; Said condenser fan 4 and cooling fan 5 are respectively applied for the temperature of the entrance of the condenser that reduces in the air-conditioning 1 and engine radiator 3; Wherein, said cooling system also comprises cooling controller 6, said cooling controller 6 respectively with air-conditioning 1 in air-conditioner controller, temperature sensor, cooling fan 5 and the condenser fan 4 in the electronic part radiator 2 be electrically connected; The temperature value and the engine behavior of refrigerant fluid in the temperature value of refrigerant fluid or external temperature that air-conditioner controller sends, the engine radiator 3 in the mode of operation of the air-conditioning 1 that said cooling controller 6 sends according to air-conditioner controller simultaneously, the electronic part radiator 2 of temperature sensor senses, the work of control cooling fan 5 and condenser fan 4.
Wherein, said cooling controller 6 is used for the above-mentioned control method that is used for the hybrid vehicle cooling system.Cooling controller 6 described here can be the various electronic machines that can carry out above-mentioned control method, for example electronic control unit (ECU) in computing machine, digital signal processor, micro controller system and the automobile etc.
When cooling system that uses hybrid vehicle provided by the invention and control method; The controller of the driving engine in the air-conditioner controller in the cooling controller in the cooling system 6 and the air-conditioning 1 and the driving engine is linked to each other; The temperature value of refrigerant fluid is controlled cooling fan 5 and condenser fan 4 in the engine radiator 3 that electronic part cooling-liquid temperature that sends according to temperature sensor in the mode of operation of air-conditioning 1, the mode of operation of driving engine, the electronic part radiator 2 simultaneously and driving engine send; Like this through taking all factors into consideration the state of temperature of each several part in the whole hybrid vehicle; Make whole control process refinement more, can under the prerequisite that satisfies the cooling system demand, make power consumption minimum.And when temperature sensor in the electronic part radiator 2 damaged, the cooling system of hybrid vehicle provided by the invention and control method still can correctly be controlled cooling fan 5 and condenser fan 4.
Claims (10)
1. control method that is used for the hybrid vehicle cooling system, this method may further comprise the steps:
Obtain the mode of operation of the mode of operation and the air-conditioning (1) of driving engine;
Gather the temperature of refrigerant fluid in the electronic part radiator (2) or obtain external temperature;
Obtain the temperature of refrigerant fluid in the engine radiator (3);
It is characterized in that said method is further comprising the steps of:
Simultaneously whether in running order whether and air-conditioning (1) be in refrigerating state according to the temperature value of refrigerant fluid in the temperature value of refrigerant fluid in the electronic part radiator (2) or external temperature value, the engine radiator (3), driving engine; The work of control condenser fan (4) and cooling fan (5)
Wherein, when driving engine is in starting state or air-conditioning (1) when being in refrigerating state, control condenser fan (4) is in opening;
When driving engine is in closed condition and air-conditioning (1) when being in non-refrigerating state,, condenser fan (4) is controlled, to satisfy cooling requirement according to the temperature value of refrigerant fluid in the engine radiator (3).
2. method according to claim 1, wherein, the method for control cooling fan (5) is:
(1) be in starting state or air-conditioning (1) when being in refrigerating state when driving engine:
When if the temperature value of refrigerant fluid is in the low-temperature space of refrigerant fluid in the electronic part radiator (2); Then have only when the temperature value of refrigerant fluid in the engine radiator (3) is spent more than or equal to 92; Just control cooling fan (5) and open, otherwise control cooling fan (5) is closed; If the temperature value of refrigerant fluid is in the middle warm area of refrigerant fluid or when the high-temperature zone of refrigerant fluid, then controls cooling fan (5) unlatching in the electronic part radiator (2);
(2) be in closed condition and air-conditioning (1) when being in non-refrigerating state when driving engine:
When if the temperature value of refrigerant fluid is in the low-temperature space of refrigerant fluid in the electronic part radiator (2); Then have only when the temperature value of refrigerant fluid in the engine radiator (3) is spent more than or equal to 98; Control cooling fan (5) is opened, otherwise control cooling fan (5) is closed; If the temperature value of refrigerant fluid is in the middle warm area of refrigerant fluid or when the high-temperature zone of refrigerant fluid, then controls cooling fan (5) unlatching in the electronic part radiator (2),
Wherein, said low-temperature space at refrigerant fluid is the interval that temperature value is less than or equal to 30 degree; Said middle warm area at refrigerant fluid is the interval that temperature value is in 32～39 degree; Said high-temperature zone at refrigerant fluid is the interval of temperature value more than or equal to 42 degree.
3. method according to claim 2, wherein
When the temperature value that the temperature value of refrigerant fluid is in refrigerant fluid in high-temperature zone or the engine radiator (3) of refrigerant fluid in the electronic part radiator (2) was spent more than or equal to 98, control cooling fan (5) is high-grade to be opened;
If when the temperature value that the temperature value of refrigerant fluid is in refrigerant fluid in middle warm area and the engine radiator (3) of refrigerant fluid in the electronic part radiator (2) was spent less than 98, control cooling fan (5) is low-grade to be opened; When driving engine is in starting state or air-conditioning (1) when being in refrigerating state; When if the temperature value of refrigerant fluid is in the low-temperature space of refrigerant fluid in the electronic part radiator (2); Then the temperature value of refrigerant fluid controls then more than or equal to 92 and when spending less than 98 that cooling fan (5) is low-grade to be opened in the engine radiator (3).
4. method according to claim 3; Wherein, In the electronic part radiator (2) during two differential gaps between the middle warm area of the low-temperature space of refrigerant fluid and refrigerant fluid, between the high-temperature zone of the middle warm area of refrigerant fluid and refrigerant fluid of the temperature value of refrigerant fluid; If when initial control, select to control cooling fan (5) with the pairing control method of the hithermost temperature range of temperature value of the middle refrigerant fluid of current electronic part radiator (2); If after initial control, then continue to continue to use the control method of using before the temperature value variation and control cooling fan (5).
5. method according to claim 4; Wherein, the temperature value of refrigerant fluid adopts temperature sensor measurement in the electronic part radiator (2), and said method comprises that also this temperature sensor detects step; Said step comprises: receive the temperature value that this temperature sensor sends; And judge this temperature value whether continuous 30 seconds not between the estimating temperature scope, if confirm that then this temperature sensor damages
Wherein, said estimating temperature scope is-20～65 degree.
6. method according to claim 5 wherein, when said temperature sensor damages, is controlled the work of cooling fan (5) according to the external temperature value,
(1) be in starting state or air-conditioning (1) when being in refrigerating state when driving engine:
When if the external temperature value is in the low-temperature space of external temperature, then have only when the temperature value of refrigerant fluid in the engine radiator (3) is spent more than or equal to 92, just control cooling fan (5) and open, otherwise control cooling fan (5) is closed; If when the external temperature value is in the high-temperature zone of middle warm area or external temperature of external temperature, then controls cooling fan (5) and open;
(2) be in closed condition and air-conditioning (1) when being in non-refrigerating state when driving engine:
When if the external temperature value is in the low-temperature space of external temperature, then have only when the temperature value of refrigerant fluid in the engine radiator (3) is spent more than or equal to 98, control cooling fan (5) is opened, otherwise control cooling fan (5) is closed; If when the external temperature value is in the high-temperature zone of middle warm area or external temperature of external temperature, then controls cooling fan (5) and open,
Wherein, the low-temperature space of said external temperature is the interval that temperature value is less than or equal to 16 degree; The middle warm area of said external temperature is the interval that temperature value is in 20～24 degree; The high-temperature zone of said external temperature is the interval of temperature value more than or equal to 28 degree.
7. method according to claim 6, wherein
When the temperature value that is in refrigerant fluid in high-temperature zone or the engine radiator (3) of external temperature when the external temperature value was spent more than or equal to 98, control cooling fan (5) is high-grade to be opened;
If the external temperature value is in the temperature value of refrigerant fluid in middle warm area and the engine radiator (3) of external temperature when spending less than 98, control cooling fan (5) is low-grade to be opened; When driving engine is in starting state or air-conditioning (1) when being in refrigerating state; When if the temperature value of refrigerant fluid is in the low-temperature space of external temperature in the electronic part radiator (2); Then the temperature value of refrigerant fluid controls then more than or equal to 92 and when spending less than 98 that cooling fan (5) is low-grade to be opened in the engine radiator (3).
8. method according to claim 7; Wherein, During two differential gaps between the external temperature value is in the middle warm area of low-temperature space and external temperature of external temperature, between the high-temperature zone of the middle warm area of external temperature and external temperature; If when initial control, select to control cooling fan (5) with the pairing control method of the hithermost temperature range of current external temperature value; If after initial control, then continue to continue to use the control method of using before the temperature value variation and control cooling fan (5).
9. according to any said method among the claim 1-8; Wherein, When driving engine is in closed condition and air-conditioning (1) when being in non-refrigerating state, as long as when the temperature value of refrigerant fluid in the engine radiator (3) is spent more than or equal to 98, control condenser fan (4) unlatching.
10. the cooling system of a hybrid vehicle; Said cooling system comprises the air-conditioning (1) with air-conditioner controller, the electronic part radiator (2) with temperature sensor, engine radiator (3), condenser fan (4) and cooling fan (5); Said condenser fan (4) and cooling fan (5) are respectively applied for the temperature of the entrance of the condenser that reduces in the air-conditioning (1) and engine radiator (3); It is characterized in that; Said cooling system also comprises cooling controller (6); Said cooling controller (6) respectively with air-conditioning (1) in air-conditioner controller, temperature sensor, cooling fan (5) and the condenser fan (4) in the electronic part radiator (2) be electrically connected, said cooling controller (6) is used for enforcement of rights and requires the described control method of each claim of 1-9.
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