CN104832264A - Control method and device of cooling fan in vehicle and vehicle - Google Patents
Control method and device of cooling fan in vehicle and vehicle Download PDFInfo
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- CN104832264A CN104832264A CN201410806015.7A CN201410806015A CN104832264A CN 104832264 A CN104832264 A CN 104832264A CN 201410806015 A CN201410806015 A CN 201410806015A CN 104832264 A CN104832264 A CN 104832264A
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- 238000001816 cooling Methods 0.000 title claims abstract description 207
- 238000000034 method Methods 0.000 title claims abstract description 55
- 239000000110 cooling liquid Substances 0.000 claims abstract description 92
- 238000012544 monitoring process Methods 0.000 claims abstract description 28
- 238000012360 testing method Methods 0.000 claims description 29
- 238000001514 detection method Methods 0.000 claims description 25
- 230000000737 periodic effect Effects 0.000 claims description 22
- 230000008569 process Effects 0.000 claims description 20
- 230000005611 electricity Effects 0.000 abstract description 15
- 239000002826 coolant Substances 0.000 description 16
- 230000009471 action Effects 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012634 fragment Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention discloses a control method and a device of a cooling fan in a vehicle and the vehicle, wherein the method comprises the steps of: monitoring if an engine in the vehicle is located in a stop state; acquiring the present temperature of cooling liquid in the vehicle if monitoring that the engine in the vehicle is located in the stop state; judging if the present temperature of the cooling liquid is higher than or equal to a preset temperature threshold; controlling the cooling fan in the vehicle to operate and periodically detecting the battery voltage in the vehicle with a preset time interval as period if judging that the present temperature of the cooling liquid is higher than or equal to the preset temperature threshold; and controlling the cooling fan to stop operating when detecting that the battery voltage is lower than or equal to a preset voltage threshold. The method prevents the consequence of incapability of normal starting of the vehicle due to insufficient battery voltage of the vehicle caused by excessive electricity consumption in the operation of the cooling fan through adding a compensation effect on the influence of vehicle battery electric quantity, so that the vehicle performance is improved.
Description
Technical field
The present invention relates to automobile technical field, particularly relate to the controlling method of cooling fan in a kind of automobile, device and a kind of automobile with the control gear of this cooling fan.
Background technique
At present, in the water cooling system of motor, the function of cooling fan is that suck air makes it by radiator when fan rotates, to strengthen the heat dissipation potential of radiator, and the cooling of accelerating cooling liquid.Cooling system must have enough ventilations to absorb the heat of cooling liquid, is taken away by heat.The ventilation of car load runs the air quantity of inspiration by cooling system fan and natural wind two-part form.When automobile high-speed, main ventilation is natural wind, and when low speed and parking, system ventilation amount provides primarily of fan.Automobile is from after driving to parking, and do not have head-on wind at a high speed, fan is not opened, and coolant temperature can raise rapidly.In order to prevent now coolant temperature too high, general automobile can arrange the function that rear controlled cooling model fan operation shut down by motor in controlling.
In the related, as shown in Figure 1, the existing control strategy that cooling fan runs is: the coolant temperature T will obtained when motor is shut down at every turn, with a fixing limit temperature T
ocompare.If coolant temperature T does not reach limit temperature T at that time
ojust controlled cooling model fan does not run; And if coolant temperature T reaches this limit temperature T at that time
o, just controlled cooling model fan runs, and maintains the set time t of time controling a setting of operation
oin.
But it is not Problems existing is: existing control strategy is fairly simple, when when not considering that motor is shut down, in cooling system, coolant temperature is different, identical to the demand of system ventilation amount; Further, automobile storage battery is come from because general automobile cooling fan runs power, so, when the overlong time that cooling fan runs, storage battery electric quantity consumption may be made too much to cause vehicle launch difficulty next time.
Summary of the invention
Object of the present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.
For this reason, first object of the present invention is the controlling method proposing cooling fan in a kind of automobile.The method, by adding the compensating action on the impact of automobile storage battery electricity, prevents cooling fan to run the electricity consumed and too much makes automobile storage battery undertension, and cause the consequence that automobile cannot normally start, improve vehicle performance.
Second object of the present invention is the control gear proposing cooling fan in a kind of automobile.
3rd object of the present invention is to propose a kind of automobile.
To achieve these goals, the controlling method of cooling fan in the automobile of first aspect present invention embodiment, comprising: whether the motor in monitoring automobile is in outage state; If the motor monitored in described automobile is in outage state, then gather the Current Temperatures of the cooling liquid in described automobile; Judge whether the Current Temperatures of described cooling liquid is more than or equal to preset temperature threshold values; If judge that the Current Temperatures of described cooling liquid is more than or equal to described preset temperature threshold values, then the cooling fan controlled in described automobile brings into operation, and is the cycle with prefixed time interval, the battery voltage in automobile described in periodic detection; And when detecting that described battery voltage is less than or equal to predeterminated voltage threshold values, control described cooling fan out of service.
According to the controlling method of cooling fan in the automobile of the embodiment of the present invention, whether the motor can monitored in automobile is in outage state, if, then gather the Current Temperatures of the cooling liquid in automobile, and judge whether the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, if, then the cooling fan controlled in automobile brings into operation, and be the cycle with prefixed time interval, battery voltage in periodic detection automobile, when detecting that battery voltage is less than or equal to predeterminated voltage threshold values, controlled cooling model fan is out of service, namely in the process of controlled cooling model fan operation, by adding the compensating action on the impact of automobile storage battery electricity, prevent cooling fan to run the electricity consumed and too much make automobile storage battery undertension, and cause the consequence that automobile cannot normally start, improve vehicle performance.
In addition, according to the controlling method of cooling fan in automobile of the present invention, also there is following additional technical feature:
According to one embodiment of present invention, after judging that the Current Temperatures of described cooling liquid is more than or equal to described preset temperature threshold values, described method also comprises: the Estimated Time Of Operation obtaining described cooling fan according to the Temperature-time control curve preset and the Current Temperatures of described cooling liquid.
According to one embodiment of present invention, in the process controlling the operation of described cooling fan, described method also comprises: judge whether the working time of described cooling fan is more than or equal to described Estimated Time Of Operation; If judge that the working time of described cooling fan is more than or equal to described Estimated Time Of Operation, then control described cooling fan out of service.
According to one embodiment of present invention, when judging that the working time of described cooling fan is less than described Estimated Time Of Operation, continuing with prefixed time interval is the cycle, the battery voltage in automobile described in periodic detection.
To achieve these goals, the control gear of cooling fan in the automobile of second aspect present invention embodiment, comprising: monitoring modular, whether is in outage state for the motor of monitoring in automobile; Acquisition module, for when described monitoring module monitors is in outage state to the motor in described automobile, gathers the Current Temperatures of the cooling liquid in described automobile; First judge module, for judging whether the Current Temperatures of described cooling liquid is more than or equal to preset temperature threshold values; Control module, for when described first judge module judges that the Current Temperatures of described cooling liquid is more than or equal to described preset temperature threshold values, the cooling fan controlled in described automobile brings into operation; Testing module, for being the cycle with prefixed time interval, the battery voltage in automobile described in periodic detection; Described control module also for when described testing module detects that described battery voltage is less than or equal to predeterminated voltage threshold values, controls described cooling fan out of service.
According to the control gear of cooling fan in the automobile of the embodiment of the present invention, whether outage state is in by the motor in monitoring module monitors automobile, acquisition module is when monitoring module monitors is in outage state to the motor in automobile, gather the Current Temperatures of the cooling liquid in automobile, first judge module judges whether the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, control module is when the first judge module judges that the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, the cooling fan controlled in automobile brings into operation, testing module take prefixed time interval as the cycle, battery voltage in periodic detection automobile, when testing module detects that battery voltage is less than or equal to predeterminated voltage threshold values, control module controlled cooling model fan is out of service, namely in the process of controlled cooling model fan operation, by adding the compensating action on the impact of automobile storage battery electricity, prevent cooling fan to run the electricity consumed and too much make automobile storage battery undertension, and cause the consequence that automobile cannot normally start, improve vehicle performance.
In addition, according to the control gear of cooling fan in automobile of the present invention, also there is following additional technical feature:
According to one embodiment of present invention, described control gear also comprises: acquisition module, after judging that the Current Temperatures of described cooling liquid is more than or equal to described preset temperature threshold values at described first judge module, obtain the Estimated Time Of Operation of described cooling fan according to the Temperature-time control curve preset and the Current Temperatures of described cooling liquid.
According to one embodiment of present invention, described control gear also comprises: the second judge module, in the process of described cooling fan operation, judge whether the working time of described cooling fan is more than or equal to described Estimated Time Of Operation for controlling in described control module; Described control module also for when described second judge module judges that the working time of described cooling fan is more than or equal to described Estimated Time Of Operation, controls described cooling fan out of service.
According to one embodiment of present invention, described testing module is also for when described second judge module judges that the working time of described cooling fan is less than described Estimated Time Of Operation, continuing with prefixed time interval is the cycle, the battery voltage in automobile described in periodic detection.
To achieve these goals, the automobile of third aspect present invention embodiment, comprises the control gear of cooling fan in the automobile of second aspect present invention embodiment.
According to the automobile of the embodiment of the present invention, whether outage state is in by the motor in the monitoring module monitors automobile in the control gear of cooling fan, acquisition module is when monitoring module monitors is in outage state to the motor in automobile, gather the Current Temperatures of the cooling liquid in automobile, first judge module judges whether the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, control module is when the first judge module judges that the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, the cooling fan controlled in automobile brings into operation, testing module take prefixed time interval as the cycle, battery voltage in periodic detection automobile, when testing module detects that battery voltage is less than or equal to predeterminated voltage threshold values, control module controlled cooling model fan is out of service, namely in the process of controlled cooling model fan operation, by adding the compensating action on the impact of automobile storage battery electricity, prevent cooling fan to run the electricity consumed and too much make automobile storage battery undertension, and cause the consequence that automobile cannot normally start, improve vehicle performance.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein,
Fig. 1 is the exemplary plot of the controlling method of cooling fan of the prior art;
Fig. 2 is the flow chart of the controlling method of cooling fan in automobile according to an embodiment of the invention;
Fig. 3 is the flow chart of the controlling method of cooling fan in automobile in accordance with another embodiment of the present invention;
Fig. 4 is the exemplary plot of the controlling method of cooling fan in automobile according to an embodiment of the invention;
Fig. 5 is the structural representation of the control gear of cooling fan in automobile according to an embodiment of the invention; And
Fig. 6 is the structural representation of the control gear of cooling fan in automobile in accordance with another embodiment of the present invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
During in order to solve the overlong time when cooling fan runs, may make the storage battery electric quantity consumption of automobile too much and cause the problem of vehicle launch difficulty next time etc., the present invention proposes the controlling method of cooling fan in a kind of automobile, device and there is the automobile of this control gear.Particularly, below with reference to the accompanying drawings describe the controlling method of cooling fan in the automobile according to the embodiment of the present invention, device and there is the automobile of control gear of this cooling fan.
Fig. 2 is the flow chart of the controlling method of cooling fan in automobile according to an embodiment of the invention.As shown in Figure 2, in this automobile, the controlling method of cooling fan can comprise:
S201, whether the motor in monitoring automobile is in outage state.
S202, if the motor monitored in automobile is in outage state, then gathers the Current Temperatures of the cooling liquid in automobile.
Should be appreciated that in an embodiment of the present invention, cooling liquid is the cooling liquid in automobile in cooling system.Particularly, when monitoring the motor in automobile and shutting down, the Current Temperatures of cooling liquid in cooling system is now gathered.
S203, judges whether the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values.
Wherein, in an embodiment of the present invention, it is a fixing limit temperature that preset temperature threshold values can be regarded as, and this preset temperature threshold values can be in advance by limits value that a large amount of experimental tests obtains.
That is, the Current Temperatures of a cooling liquid can be obtained when the motor in automobile is shut down at every turn, now the Current Temperatures of this cooling liquid and preset temperature threshold values can be compared, namely judge whether the Current Temperatures of cooling liquid reaches preset temperature threshold values.
S204, if judge that the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, then the cooling fan controlled in automobile brings into operation, and is the cycle with prefixed time interval, the battery voltage in periodic detection automobile.
Wherein, in an embodiment of the present invention, prefixed time interval can be regarded as is the threshold values preset.That is, when judging that the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, the cooling fan that can control in automobile brings into operation, and is the cycle with prefixed time interval, regularly detects the battery voltage in automobile and judges.
S205, when detecting that battery voltage is less than or equal to predeterminated voltage threshold values, controlled cooling model fan is out of service.
Particularly, when certain one-time detection battery voltage is less than or equal to predeterminated voltage threshold values, when namely this time determines battery voltage lower than predeterminated voltage threshold values, can controlled cooling model fan out of service.Wherein, in an embodiment of the present invention, predeterminated voltage threshold values can be and presets.Thus, by considering the change of battery voltage, compensating and the time controlled is run to cooling fan, avoid the cooling fan long storage battery electric quantity consumption that may make working time too much to affect vehicle launch next time.
According to the controlling method of cooling fan in the automobile of the embodiment of the present invention, whether the motor can monitored in automobile is in outage state, if, then gather the Current Temperatures of the cooling liquid in automobile, and judge whether the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, if, then the cooling fan controlled in automobile brings into operation, and be the cycle with prefixed time interval, battery voltage in periodic detection automobile, when detecting that battery voltage is less than or equal to predeterminated voltage threshold values, controlled cooling model fan is out of service, namely in the process of controlled cooling model fan operation, by adding the compensating action on the impact of automobile storage battery electricity, prevent cooling fan to run the electricity consumed and too much make automobile storage battery undertension, and cause the consequence that automobile cannot normally start, improve vehicle performance.
Fig. 3 is the flow chart of the controlling method of cooling fan in automobile in accordance with another embodiment of the present invention.
Be to be understood that, in the running of controlled cooling model fan, also need the continuous working period factor considering cooling fan, namely after judging that the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, also can obtain the Estimated Time Of Operation of cooling fan according to the Current Temperatures of the Temperature-time control curve preset and cooling liquid, and judge whether the working time of cooling fan exceeds the estimates working time, and according to judged result, different control is carried out to cooling fan.Particularly, as shown in Figure 3, in this automobile, the controlling method of cooling fan can comprise:
S301, whether the motor in monitoring automobile is in outage state.
S302, if the motor monitored in automobile is in outage state, then gathers the Current Temperatures of the cooling liquid in automobile.
Should be appreciated that in an embodiment of the present invention, cooling liquid is the cooling liquid in automobile in cooling system.Particularly, when monitoring the motor in automobile and shutting down, the Current Temperatures of cooling liquid in cooling system is now gathered.
S303, judges whether the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values.
Wherein, in an embodiment of the present invention, it is a fixing limit temperature that preset temperature threshold values can be regarded as, and this preset temperature threshold values can be in advance by limits value that a large amount of experimental tests obtains.
That is, the Current Temperatures of a cooling liquid can be obtained when the motor in automobile is shut down at every turn, now the Current Temperatures of this cooling liquid and preset temperature threshold values can be compared, namely judge whether the Current Temperatures of cooling liquid reaches preset temperature threshold values.
S304, if judge that the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, then the cooling fan controlled in automobile brings into operation, and is the cycle with prefixed time interval, the battery voltage in periodic detection automobile.
Wherein, in an embodiment of the present invention, prefixed time interval can be regarded as is the threshold values preset.That is, when judging that the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, the cooling fan that can control in automobile brings into operation, and is the cycle with prefixed time interval, regularly detects the battery voltage in automobile and judges.
S305, when detecting that battery voltage is less than or equal to predeterminated voltage threshold values, controlled cooling model fan is out of service.
Particularly, when certain one-time detection battery voltage is less than or equal to predeterminated voltage threshold values, when namely this time determines battery voltage lower than predeterminated voltage threshold values, can controlled cooling model fan out of service.Wherein, in an embodiment of the present invention, predeterminated voltage threshold values can be and presets.Thus, by considering the change of battery voltage, compensating and the time controlled is run to cooling fan, avoid the cooling fan long storage battery electric quantity consumption that may make working time too much to affect vehicle launch next time.
S306, after judging that the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, the Current Temperatures according to the Temperature-time control curve preset and cooling liquid obtains the Estimated Time Of Operation of cooling fan.
It should be noted that, in an embodiment of the present invention, in the running of controlled cooling model fan, also need the continuous working period factor considering cooling fan.Particularly, after judging that the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, first can obtain default Temperature-time control curve, and get the Estimated Time Of Operation of corresponding cooling fan according to the Current Temperatures of Temperature-time control curve and cooling liquid.Wherein, in an embodiment of the present invention; the Temperature-time control curve preset can be in advance by the curve that a large amount of experimental tests obtains, the most suitable cooling fan working time that when this curve determines that different motor is shut down, the Current Temperatures of cooling liquid is corresponding.Be appreciated that Estimated Time Of Operation is the time that when motor is shut down, cooling fan will run.
Wherein, in the process that controlled cooling model fan runs, also can consider that corresponding factor does corresponding adjustment to this Estimated Time Of Operation.Such as, in the process that cooling fan runs, in order to ensure the accurate of working time and adaptability, a secondary adjustment (or process of secondary and three adjustment) can be had to Estimated Time Of Operation.The aim curve (namely above-mentioned Temperature-time control curve) that engineer demarcates according to experimental test can be prestored; this curve is when shutting down under the different operating mode of coolant temperature, and vehicle carries out target coolant temperature when cooling fan runs to secondary (or three times) adjustment.When secondary (or three times) adjusts, the target temperature in the coolant temperature now truly recorded and this curve is contrasted, if higher than target temperature, then working time suitable increase is carried out to remaining cooling fan; If otherwise the coolant temperature now truly recorded is lower than target temperature, then working time suitable minimizing is carried out to remaining cooling fan.
S307, in the process that controlled cooling model fan runs, judges whether the working time of cooling fan is more than or equal to Estimated Time Of Operation.
S308, if judge that the working time of cooling fan is more than or equal to Estimated Time Of Operation, then controlled cooling model fan is out of service.
In an embodiment of the present invention, when judging that the working time of cooling fan is less than Estimated Time Of Operation, continue to take prefixed time interval as the cycle, the battery voltage in periodic detection automobile.Particularly, when judging that the working time of cooling fan does not reach Estimated Time Of Operation, and when now battery voltage is still greater than predeterminated voltage threshold values, can continue to run by controlled cooling model fan, and be still the cycle with prefixed time interval, the battery voltage in periodic detection automobile, until be more than or equal to Estimated Time Of Operation the working time of cooling fan, or when battery voltage is less than or equal to predeterminated voltage threshold values, controlled cooling model fan is out of service.
For example, as shown in Figure 4, when monitoring motor and shutting down, the Current Temperatures T of the cooling liquid in automobile can be gathered, and by the Current Temperatures T of cooling liquid and preset temperature threshold values T
ojudge, if the Current Temperatures T of cooling liquid is less than preset temperature threshold values T
o, then controlled cooling model fan does not run, and namely motor does not need cooling; If the Current Temperatures T of cooling liquid is more than or equal to preset temperature threshold values T
othen the cooling fan that can control in automobile brings into operation, and with prefixed time interval Δ t for the cycle, the battery voltage V in periodic detection automobile, can obtain the Estimated Time Of Operation t of cooling fan simultaneously according to the Current Temperatures T of the Temperature-time control curve preset and cooling liquid
i, when certain one-time detection battery voltage V is less than or equal to predeterminated voltage threshold values V
o, namely this time determines battery voltage V lower than predeterminated voltage threshold values V
otime, even if now do not exceed the estimates t working time the working time of cooling fan
i, still controlled cooling model fan is out of service; Exceeded the estimates when the working time of cooling fan t working time
itime, even if now battery voltage V is still greater than predeterminated voltage threshold values V
o, still controlled cooling model fan is out of service.
According to the controlling method of cooling fan in the automobile of the embodiment of the present invention, also need the continuous working period factor considering cooling fan, namely after judging that the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, the Estimated Time Of Operation of cooling fan can be obtained according to the Current Temperatures of the Temperature-time control curve preset and cooling liquid, and judge whether the working time of cooling fan exceeds the estimates working time, and according to judged result, different control is carried out to cooling fan, namely due to coolant temperature when motor is shut down different corresponding different cooling fan working time, according to the Temperature-time control curve preset and the Current Temperatures of cooling liquid, obtain the working time that when this motor is shut down, cooling fan will need, improve the performance of cooling system.
In order to realize above-described embodiment, the invention allows for the control gear of cooling fan in a kind of automobile.
Fig. 5 is the structural representation of the control gear of cooling fan in automobile according to an embodiment of the invention.As shown in Figure 5, in this automobile, the control gear of cooling fan can comprise: monitoring modular 10, acquisition module 20, first judge module 30, control module 40 and testing module 50.
Particularly, whether the motor that monitoring modular 10 can be used in monitoring automobile is in outage state.
Acquisition module 20 is used in monitoring modular 10 motor monitored in automobile when being in outage state, gathers the Current Temperatures of the cooling liquid in automobile.Should be appreciated that in an embodiment of the present invention, cooling liquid is the cooling liquid in automobile in cooling system.More specifically, when the motor that monitoring modular 10 monitors in automobile is shut down, now acquisition module 20 gathers the Current Temperatures of cooling liquid in cooling system.
First judge module 30 can be used for judging whether the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values.Wherein, in an embodiment of the present invention, it is a fixing limit temperature that preset temperature threshold values can be regarded as, and this preset temperature threshold values can be in advance by limits value that a large amount of experimental tests obtains.
That is; the Current Temperatures of a cooling liquid can be obtained when motor in automobile is shut down at every turn; the Current Temperatures of this cooling liquid and preset temperature threshold values now can compare by the first judge module 30, namely judge whether the Current Temperatures of cooling liquid reaches preset temperature threshold values.
Control module 40 is used in the first judge module 30 when judging that the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, and the cooling fan controlled in automobile brings into operation.Testing module 50 can be used for taking prefixed time interval as the cycle, the battery voltage in periodic detection automobile.
Wherein, in an embodiment of the present invention, prefixed time interval can be regarded as is the threshold values preset.That is, when the first judge module 30 judges that the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, the cooling fan that control module 40 can control in automobile brings into operation, testing module 50 can prefixed time interval be the cycle, regularly detects the battery voltage in automobile and judges.
In an embodiment of the present invention, control module 40 is also used in testing module 50 when detecting that battery voltage is less than or equal to predeterminated voltage threshold values, and controlled cooling model fan is out of service.More specifically, be less than or equal to predeterminated voltage threshold values when certain testing module 50 detects battery voltage, when namely this time determines battery voltage lower than predeterminated voltage threshold values, control module 40 can controlled cooling model fan out of service.Wherein, in an embodiment of the present invention, predeterminated voltage threshold values can be and presets.Thus, by considering the change of battery voltage, compensating and the time controlled is run to cooling fan, avoid the cooling fan long storage battery electric quantity consumption that may make working time too much to affect vehicle launch next time.
Further, in one embodiment of the invention, as shown in Figure 6, in this automobile, the control gear of cooling fan also can comprise: acquisition module 60.Acquisition module 60 is used in after the first judge module 30 judges that the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, obtains the Estimated Time Of Operation of cooling fan according to the Current Temperatures of the Temperature-time control curve preset and cooling liquid.
It should be noted that, in an embodiment of the present invention, in the running of controlled cooling model fan, also need the continuous working period factor considering cooling fan.Particularly, after the first judge module 30 judges that the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, acquisition module 60 first can obtain default Temperature-time control curve, and gets the Estimated Time Of Operation of corresponding cooling fan according to the Current Temperatures of Temperature-time control curve and cooling liquid.Wherein, in an embodiment of the present invention; the Temperature-time control curve preset can be in advance by the curve that a large amount of experimental tests obtains, the most suitable cooling fan working time that when this curve determines that different motor is shut down, the Current Temperatures of cooling liquid is corresponding.Be appreciated that Estimated Time Of Operation is the time that when motor is shut down, cooling fan will run.
Wherein, in the process that controlled cooling model fan runs, also can consider that corresponding factor does corresponding adjustment to this Estimated Time Of Operation.Such as, in the process that cooling fan runs, in order to ensure the accurate of working time and adaptability, a secondary adjustment (or process of secondary and three adjustment) can be had to Estimated Time Of Operation.The aim curve (namely above-mentioned Temperature-time control curve) that engineer demarcates according to experimental test can be prestored; this curve is when shutting down under the different operating mode of coolant temperature, and vehicle carries out target coolant temperature when cooling fan runs to secondary (or three times) adjustment.When secondary (or three times) adjusts, the target temperature in the coolant temperature now truly recorded and this curve is contrasted, if higher than target temperature, then working time suitable increase is carried out to remaining cooling fan; If otherwise the coolant temperature now truly recorded is lower than target temperature, then working time suitable minimizing is carried out to remaining cooling fan.
Further, in an embodiment of the present invention, as shown in Figure 6, in this automobile, the control gear of cooling fan also can comprise: the second judge module 70.Second judge module 70 is used in the process of control module 40 controlled cooling model fan operation, judges whether the working time of cooling fan is more than or equal to Estimated Time Of Operation.In an embodiment of the present invention, control module 40 is also used in the second judge module 70 when judging that the working time of cooling fan is more than or equal to Estimated Time Of Operation, and controlled cooling model fan is out of service.
In an embodiment of the present invention, testing module 50 is also used in the second judge module 70 when judging that the working time of cooling fan is less than Estimated Time Of Operation, continues to take prefixed time interval as the cycle, the battery voltage in periodic detection automobile.More specifically, when the second judge module 70 judges that the working time of cooling fan does not reach Estimated Time Of Operation, and when now battery voltage is still greater than predeterminated voltage threshold values, control module 40 can continue to run by controlled cooling model fan, testing module 50 is still the cycle with prefixed time interval, battery voltage in periodic detection automobile, until the working time of cooling fan is more than or equal to Estimated Time Of Operation, or when battery voltage is less than or equal to predeterminated voltage threshold values, control module 40 controlled cooling model fan is out of service.
Thus; due to the cooling fan working time that the different correspondence of coolant temperature when motor is shut down is different; according to the Temperature-time control curve preset and the Current Temperatures of cooling liquid, obtain the working time that when this motor is shut down, cooling fan will need, improve the performance of cooling system.
According to the control gear of cooling fan in the automobile of the embodiment of the present invention, whether outage state is in by the motor in monitoring module monitors automobile, acquisition module is when monitoring module monitors is in outage state to the motor in automobile, gather the Current Temperatures of the cooling liquid in automobile, first judge module judges whether the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, control module is when the first judge module judges that the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, the cooling fan controlled in automobile brings into operation, testing module take prefixed time interval as the cycle, battery voltage in periodic detection automobile, when testing module detects that battery voltage is less than or equal to predeterminated voltage threshold values, control module controlled cooling model fan is out of service, namely in the process of controlled cooling model fan operation, by adding the compensating action on the impact of automobile storage battery electricity, prevent cooling fan to run the electricity consumed and too much make automobile storage battery undertension, and cause the consequence that automobile cannot normally start, improve vehicle performance.
In order to realize above-described embodiment, the invention allows for a kind of automobile, comprising the control gear of cooling fan in the automobile of any one embodiment above-mentioned.
According to the automobile of the embodiment of the present invention, whether outage state is in by the motor in the monitoring module monitors automobile in the control gear of cooling fan, acquisition module is when monitoring module monitors is in outage state to the motor in automobile, gather the Current Temperatures of the cooling liquid in automobile, first judge module judges whether the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, control module is when the first judge module judges that the Current Temperatures of cooling liquid is more than or equal to preset temperature threshold values, the cooling fan controlled in automobile brings into operation, testing module take prefixed time interval as the cycle, battery voltage in periodic detection automobile, when testing module detects that battery voltage is less than or equal to predeterminated voltage threshold values, control module controlled cooling model fan is out of service, namely in the process of controlled cooling model fan operation, by adding the compensating action on the impact of automobile storage battery electricity, prevent cooling fan to run the electricity consumed and too much make automobile storage battery undertension, and cause the consequence that automobile cannot normally start, improve vehicle performance.
In describing the invention, it is to be appreciated that term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logical function to data-signal, there is the specific integrated circuit of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (9)
1. the controlling method of cooling fan in automobile, is characterized in that, comprise the following steps:
Whether the motor in monitoring automobile is in outage state;
If the motor monitored in described automobile is in outage state, then gather the Current Temperatures of the cooling liquid in described automobile;
Judge whether the Current Temperatures of described cooling liquid is more than or equal to preset temperature threshold values;
If judge that the Current Temperatures of described cooling liquid is more than or equal to described preset temperature threshold values, then the cooling fan controlled in described automobile brings into operation, and is the cycle with prefixed time interval, the battery voltage in automobile described in periodic detection; And
When detecting that described battery voltage is less than or equal to predeterminated voltage threshold values, control described cooling fan out of service.
2. the controlling method of cooling fan in automobile as claimed in claim 1, it is characterized in that, after judging that the Current Temperatures of described cooling liquid is more than or equal to described preset temperature threshold values, described method also comprises:
The Estimated Time Of Operation of described cooling fan is obtained according to the Temperature-time control curve preset and the Current Temperatures of described cooling liquid.
3. the controlling method of cooling fan in automobile as claimed in claim 2, is characterized in that, controlling in the process that described cooling fan runs, described method also comprises:
Judge whether the working time of described cooling fan is more than or equal to described Estimated Time Of Operation;
If judge that the working time of described cooling fan is more than or equal to described Estimated Time Of Operation, then control described cooling fan out of service.
4. the controlling method of cooling fan in automobile as claimed in claim 2, it is characterized in that, when judging that the working time of described cooling fan is less than described Estimated Time Of Operation, continuing with prefixed time interval is the cycle, the battery voltage in automobile described in periodic detection.
5. the control gear of cooling fan in automobile, is characterized in that, comprising:
Whether monitoring modular, be in outage state for the motor of monitoring in automobile;
Acquisition module, for when described monitoring module monitors is in outage state to the motor in described automobile, gathers the Current Temperatures of the cooling liquid in described automobile;
First judge module, for judging whether the Current Temperatures of described cooling liquid is more than or equal to preset temperature threshold values;
Control module, for when described first judge module judges that the Current Temperatures of described cooling liquid is more than or equal to described preset temperature threshold values, the cooling fan controlled in described automobile brings into operation;
Testing module, for being the cycle with prefixed time interval, the battery voltage in automobile described in periodic detection;
Described control module also for when described testing module detects that described battery voltage is less than or equal to predeterminated voltage threshold values, controls described cooling fan out of service.
6. the control gear of cooling fan in automobile as claimed in claim 5, is characterized in that, also comprise:
Acquisition module, after judging that the Current Temperatures of described cooling liquid is more than or equal to described preset temperature threshold values at described first judge module, obtain the Estimated Time Of Operation of described cooling fan according to the Temperature-time control curve preset and the Current Temperatures of described cooling liquid.
7. the control gear of cooling fan in automobile as claimed in claim 6, is characterized in that, also comprise:
Second judge module, in the process of described cooling fan operation, judges whether the working time of described cooling fan is more than or equal to described Estimated Time Of Operation for controlling in described control module;
Described control module also for when described second judge module judges that the working time of described cooling fan is more than or equal to described Estimated Time Of Operation, controls described cooling fan out of service.
8. the control gear of cooling fan in automobile as claimed in claim 6, it is characterized in that, described testing module is also for when described second judge module judges that the working time of described cooling fan is less than described Estimated Time Of Operation, continuing with prefixed time interval is the cycle, the battery voltage in automobile described in periodic detection.
9. an automobile, is characterized in that, comprises the control gear of cooling fan in the automobile according to any one of claim 5 to 8.
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| CN201410806015.7A CN104832264B (en) | 2014-12-19 | 2014-12-19 | The control method of cooling fan, device and automobile in automobile |
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| CN201410806015.7A CN104832264B (en) | 2014-12-19 | 2014-12-19 | The control method of cooling fan, device and automobile in automobile |
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| CN108528369A (en) * | 2017-03-06 | 2018-09-14 | 腾讯科技（深圳）有限公司 | Control method for vehicle and device |
| CN111251882A (en) * | 2018-11-30 | 2020-06-09 | 长城汽车股份有限公司 | Vehicle heat dissipation control method and system |
| CN114382719A (en) * | 2022-01-20 | 2022-04-22 | 杭州吉利汽车有限公司 | Fan control method, control system and vehicle |
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| CN104832264B (en) | 2017-07-11 |
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