CN115750063A - Control method of silicone oil fan, control device of silicone oil fan and vehicle - Google Patents
Control method of silicone oil fan, control device of silicone oil fan and vehicle Download PDFInfo
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- CN115750063A CN115750063A CN202211527383.9A CN202211527383A CN115750063A CN 115750063 A CN115750063 A CN 115750063A CN 202211527383 A CN202211527383 A CN 202211527383A CN 115750063 A CN115750063 A CN 115750063A
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- 229920002545 silicone oil Polymers 0.000 title claims abstract description 210
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000004044 response Effects 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 238000001816 cooling Methods 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 16
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The invention discloses a control method of a silicone oil fan, control equipment of the silicone oil fan and a vehicle, wherein the control method of the silicone oil fan comprises the following steps: acquiring the operating parameters of the engine and the operating parameters of the vehicle air conditioner to determine the target rotating speed of the silicone oil fan; acquiring the actual rotating speed of the silicone oil fan, and determining the rotating speed deviation with the target rotating speed of the silicone oil fan; acquiring the response time of the silicone oil fan; and adjusting the rotating speed of the silicone oil fan in real time according to the rotating speed deviation between the actual rotating speed and the target rotating speed of the silicone oil fan and the response time of the silicone oil fan.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a control method of a silicone oil fan, control equipment of the silicone oil fan and a vehicle.
Background
The cooling fan has the advantages of controllable rotating speed, higher control precision and rotating speed adjusting range, lower power consumption, good heat dissipation performance and the like, so that the cooling fan is widely applied to the automobile industry to cool an engine of a vehicle, a condenser of an air conditioner and the like.
In the related technology, a water pump and a fan of an engine use a mechanical water pump and a direct-connected fan, and are in transmission with a crankshaft of the engine through a belt, so that a fixed transmission ratio is achieved. Under every rotational speed of the engine, the accessory power of the water pump and the fan is constant, the adjustability is poor, and the accurate thermal management control of the engine is not facilitated.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a control method of a silicone oil fan, which can carry out on-off control and real-time regulation on the rotating speed of the silicone oil fan according to the rotating speed deviation between the actual rotating speed and the target rotating speed of the silicone oil fan and the response time of the silicone oil fan.
The invention also provides control equipment of the silicone oil fan.
The invention also provides a vehicle.
According to a first aspect of the present invention, a method for controlling a silicone oil fan is provided, for dissipating heat from an engine, the method including: acquiring the operating parameters of the engine and the operating parameters of the vehicle air conditioner to determine the target rotating speed of the silicone oil fan; acquiring the actual rotating speed of the silicone oil fan, and determining the rotating speed deviation between the actual rotating speed and the target rotating speed of the silicone oil fan; acquiring the response time of the silicone oil fan; and adjusting the rotating speed of the silicone oil fan in real time according to the rotating speed deviation between the actual rotating speed and the target rotating speed of the silicone oil fan and the response time of the silicone oil fan.
Compared with the structure that the existing mechanical fan is directly connected with the engine, the control method of the silicone oil fan has the advantages that the silicone oil fan is connected with the engine through the silicone oil medium, the rotating speed is controllable, the control precision and the rotating speed adjusting range are high, the power consumption is low, the heat dissipation performance is good, and the like. The invention is different from the method that the invention not only carries out comprehensive judgment through the deviation value between the target rotating speed and the actual rotating speed, but also through the responsiveness of the silicone oil fan, the rotating stability of the silicone oil fan and the like, and carries out comprehensive correction according to the factors in various aspects to determine the rotating speed value suitable for the steady-state rotation of the silicone oil fan, thereby ensuring that the silicone oil fan can show good follow-up performance and controllability under different target rotating speeds, and the corresponding cooling liquid temperature, the intercooler air outlet temperature and the like can meet the heat dissipation requirements of the engine.
According to some embodiments of the invention, the step of obtaining the operating parameters of the engine and the operating parameters of the vehicle air conditioner to determine the target rotating speed of the silicone oil fan further comprises: and comparing the request rotating speed determined according to the operating parameters of the engine with the request rotating speed determined according to the operating parameters of the vehicle air conditioner, and selecting the maximum request rotating speed value as the request rotating speed of the silicone oil fan.
According to some embodiments of the invention, the step of obtaining the operating parameters of the engine and the operating parameters of the vehicle air conditioner to determine the target rotating speed of the silicone oil fan further comprises: and comparing the requested rotating speed of the silicone oil fan with the highest allowable rotating speed of the silicone oil fan, and selecting a smaller rotating speed value as the target rotating speed of the silicone oil fan.
According to some embodiments of the present invention, the target rotation speed of the silicone oil fan is controlled according to a duty ratio calibrated in advance at each target rotation speed, and then the target rotation speed is output as the final rotation speed of the silicone oil fan.
According to some embodiments of the present invention, the final rotation speed of the silicone oil fan is adjusted in real time according to a pre-calibrated proportional-integral control parameter according to the response time of the silicone oil fan and according to the deviation between the actual rotation speed and the final rotation speed of the silicone oil fan.
According to some embodiments of the present invention, the step of adjusting the final rotation speed of the silicone oil fan in real time according to the pre-calibrated proportional-integral control parameter according to the response time of the silicone oil fan and the deviation between the actual rotation speed and the final rotation speed of the silicone oil fan further includes: presetting a group of proportional-integral control parameters; determining an input speed of the engine; changing the cooling requirement of the engine, and acquiring the response time of the silicone oil fan and the final rotating speed and the actual rotating speed of the silicone oil fan; and adjusting the proportional-integral control parameter according to the response time of the silicone oil fan and the deviation between the actual rotating speed and the final rotating speed, and recalibrating the adjusted proportional-integral control parameter value until the rotating speed deviation of the silicone oil fan at different final rotating speeds is controlled within the calibrated proportional-integral control parameter.
According to some embodiments of the invention, the operating parameters of the engine comprise: a water temperature parameter of an engine to determine a first requested speed of the silicone oil fan; and/or an oil temperature parameter of the engine to determine a second requested speed of the silicone oil fan.
According to some embodiments of the invention, the operating parameters of the air conditioner include: and acquiring an outlet pressure parameter of the air conditioner condenser to determine a third requested rotating speed of the silicone oil fan.
The control device of the silicone oil fan according to the second aspect of the present invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the control method when executing the computer program.
According to a vehicle of an embodiment of a third aspect of the invention, comprising: the silicone oil fan is operated by the control method of the silicone oil fan.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a first control flow chart of a silicone oil fan according to an embodiment of the invention;
fig. 2 is a second control flow chart of the silicone oil fan according to the embodiment of the invention.
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
The following describes a control method of a silicone oil fan according to an embodiment of the present invention with reference to fig. 1-2, and the present invention also proposes a control apparatus of a silicone oil fan and a vehicle having the control method described above.
Regarding the working principle of the silicone oil fan: fan silicon oil is by the oil storage chamber of silicon oil mouth below utilize the high-speed centrifugal force that produces of driving shaft to get into the working chamber through the silicon oil mouth, and engine controller controls the aperture of clutch valve block and decides silicon oil volume at the silicon oil mouth, utilizes the shearing moment that silicon oil produced to transmit the torque through the driving shaft, drives the fan rotation of covering behind. The silicone oil then flows back to the oil storage chamber through an oil return line by relative centrifugal force.
The engine crankshaft is connected with a crankshaft belt pulley, the crankshaft belt pulley is in transmission connection with a water pump belt pulley through a transmission belt, a silicone oil fan is connected with the water pump belt pulley, the water pump belt pulley is fixed on a water pump shell, and the water pump shell is installed on an engine cylinder body. The crankshaft pulley drives the water pump pulley to rotate, and the water pump pulley drives the silicone oil fan and the water pump impeller to rotate.
As shown in fig. 1 to 2, the method for controlling a silicone oil fan includes: acquiring the operating parameters of an engine and the operating parameters of a vehicle air conditioner to determine the target rotating speed of a silicone oil fan; acquiring the actual rotating speed of the silicone oil fan, and determining the rotating speed deviation with the target rotating speed of the silicone oil fan; acquiring the response time of the silicone oil fan; and adjusting the rotating speed of the silicone oil fan in real time according to the rotating speed deviation between the actual rotating speed and the target rotating speed of the silicone oil fan and the response time of the silicone oil fan.
Because the operating conditions of the engine and the vehicle air conditioner are two major factors influencing the silicone oil fan, the target rotating speed of the silicone oil fan can be determined together by acquiring the operating parameters of the engine, such as the water temperature, the oil temperature, the air outlet temperature and other parameters of the engine, and by acquiring the operating parameters of the vehicle air conditioner, such as the outlet pressure, the outlet temperature and other parameters of the vehicle air conditioner condenser. After the target rotation speed of the silicone oil fan is determined, the silicone oil fan is rotated according to the cooling requirement so as to cool the engine of the vehicle, the condenser of the vehicle air conditioner and the like. In the use process of the silicone oil fan, the rotating speed is limited by the rotating speed of the engine, and the variation can be generated along with the fluctuation of the rotating speed of the engine in the working process, so that the rotating speed deviation between the actual rotating speed and the target rotating speed of the silicone oil fan is detected in the working process, namely the following performance of the silicone oil fan, the response time of the silicone oil fan is obtained, namely the response performance of the silicone oil fan is obtained, and the on-off control of the silicone oil fan and the real-time regulation of the rotating speed of the silicone oil fan can be realized by judging the following performance and the response performance of the silicone oil fan.
Therefore, compared with the structure that the existing mechanical fan is directly connected with the engine, the silicone oil fan is connected with the engine through the silicone oil medium, and has the characteristics of controllable rotating speed, higher control precision and rotating speed adjusting range, lower power consumption, good heat dissipation performance and the like. The invention is different from the method that the final rotating speed is output after the control method of the mechanical fan is generally corrected again according to the deviation between the target rotating speed and the actual rotating speed, the invention carries out comprehensive judgment according to the deviation value between the target rotating speed and the actual rotating speed, the responsiveness of the silicone oil fan, the rotating stability of the silicone oil fan and the like, and the invention carries out comprehensive correction according to the factors in various aspects to determine the rotating speed value suitable for the steady-state rotation of the silicone oil fan, thereby ensuring that the silicone oil fan can show better following performance and controllability under different target rotating speeds, and the corresponding temperature of a cooling liquid outlet, the temperature of an intercooler air outlet and the like can meet the heat dissipation requirements of an engine.
Further, the step of obtaining the operating parameters of the engine and the operating parameters of the vehicle air conditioner to determine the target rotating speed of the silicone oil fan further comprises the following steps: and comparing the request rotating speed determined according to the operating parameters of the engine with the request rotating speed determined according to the operating parameters of the vehicle air conditioner, and selecting the maximum request rotating speed value as the request rotating speed of the silicone oil fan.
That is, the requested rotation speed corresponding to the parameters is determined according to the operation parameters of the engine, for example, the water temperature of the engine is T1 ℃, the corresponding requested rotation speed is V1rpm, and different water temperatures correspond to different requested rotation speeds; and the request rotating speed is determined according to the operation parameters of the vehicle air conditioner, for example, the outlet temperature of the condenser of the vehicle air conditioner is T2 ℃, the corresponding request rotating speed is V2rpm, the V1rpm and the V2rpm are compared, and the larger value is selected as the request rotating speed of the silicone oil fan, so that the effective cooling of the engine and the condenser of the vehicle air conditioner is ensured.
Further, the step of obtaining the operating parameters of the engine and the operating parameters of the vehicle air conditioner to determine the target rotating speed of the silicone oil fan further comprises the following steps: and comparing the requested rotating speed of the silicone oil fan with the maximum allowable rotating speed of the silicone oil fan, and selecting a smaller rotating speed value as the target rotating speed of the silicone oil fan.
The maximum allowable rotating speed of the silicone oil fan is determined according to the transmission ratio between the silicone oil fan and the engine, and the corresponding allowable rotating speed needs to be adjusted downwards under the strength limit of the silicone oil fan to avoid influencing the service life of the silicone oil fan, so that the maximum allowable rotating speed of the silicone oil fan can be obtained.
That is to say, the requested rotation speed of the silicone oil fan is compared with the maximum allowable rotation speed of the silicone oil fan, and the smaller value of the requested rotation speed and the maximum allowable rotation speed is selected as the target rotation speed of the silicone oil fan, that is, if the requested rotation speed is greater than the maximum allowable rotation speed, the maximum allowable rotation speed is used as the target rotation speed of the silicone oil fan for outputting, and if the maximum allowable rotation speed is greater than the requested rotation speed, the requested rotation speed is used as the target rotation speed of the silicone oil fan for outputting, so that the silicone oil fan can be ensured to operate after not exceeding the range of the maximum allowable rotation speed all the time, and the use durability and controllability of the silicone oil fan are ensured.
Further, the target rotating speed of the silicone oil fan is controlled according to the duty ratio calibrated in advance under each target rotating speed, and then the target rotating speed is output as the final rotating speed of the silicone oil fan.
That is to say, the target rotation speed is converted into a duty ratio value controlled by PWM, and different target rotation speeds correspond to different duty ratio values, wherein an engine ECU (i.e. an electronic control unit) obtains signals of water temperature, air inlet and outlet temperature, engine rotation speed, outlet temperature of a vehicle air conditioner, silicone oil fan rotation speed and the like of an engine, and after comprehensive arrangement and calculation are performed on the data, an electric pulse instruction is output according to a pulse width modulation theory (PWM) to control the opening of a clutch valve plate in a silicone oil fan, wherein the clutch valve plate is used for adjusting the size of an oil inlet, and the larger the opening of the clutch valve plate is, the larger the amount of silicone oil entering a clutch working chamber is, so that the higher the rotation speed of the silicone oil fan is, and the rotation speed of the silicone oil fan can be changed by controlling the amount of silicone oil entering the clutch working chamber, and can be used as the final rotation speed of the silicone oil fan, and can well correspond to the cooling demand of the engine. In other words, the engine ECM sends out different PWM control instructions to correspondingly generate different voltage signals, the opening size of the clutch valve plate is controlled through the size of the voltage signals, then the amount of silicone oil flowing into the silicone oil cavity is adjusted, different amounts of silicone oil can generate different clutch friction forces, and finally the control of the rotating speed of the silicone oil fan is achieved. And if the actual rotating speed of the silicone oil fan is not consistent with the final rotating speed of the silicone oil fan, the engine ECU sends out an adjusting instruction again through calculation until the actual rotating speed of the silicone oil fan is consistent with the set rotating speed of the fan.
And further, according to the response time of the silicone oil fan and the deviation between the actual rotating speed and the final rotating speed of the silicone oil fan, the final rotating speed of the silicone oil fan is adjusted in real time according to a pre-calibrated proportional-integral control parameter.
That is to say, because the silicone oil fan has certain response hysteresis, and the silicone oil fan has certain volatility, that is, the actual rotational speed fluctuates around the final rotational speed, therefore, according to the response time of the silicone oil fan and the deviation between the actual rotational speed of the silicone oil fan and the final rotational speed, the final rotational speed is adjusted in real time according to the calibrated proportional-integral control parameter, so as to ensure that the silicone oil fan can be adjusted and rotated within a certain rotational speed range all the time.
The calibrated proportional-integral control parameter (namely PID) can be understood as the rotating speed deviation control range of the silicone oil fan, and the deviation between the actual rotating speed and the output final rotating speed can be always controlled within a certain range for different final rotating speeds of the silicone oil fan, so that the silicone oil fan can be stably output, timely and effective response can be realized according to an engine ECM control instruction, and the follow-up property and the response property of the silicone oil fan are improved.
Further, with reference to fig. 2, the step of adjusting the final rotation speed of the silicone oil fan in real time according to the pre-calibrated proportional-integral control parameter according to the response time of the silicone oil fan and the deviation between the actual rotation speed and the final rotation speed of the silicone oil fan further includes: presetting a group of proportional-integral control parameters; determining an input speed of the engine; changing the cooling requirement of the engine to obtain the response time of the silicone oil fan and the final rotating speed and the actual rotating speed of the silicone oil fan; and adjusting the proportional-integral control parameter according to the response time of the silicone oil fan and the deviation between the final rotating speed and the actual rotating speed, and re-calibrating the adjusted proportional-integral control parameter value until the response time and the rotating speed deviation of the silicone oil fan at different final rotating speeds are controlled within the calibrated proportional-integral control parameter.
That is, after the PID confirms the input speed of the engine, the cooling requirement of the engine is changed, for example, the engine ECU obtains the changed water temperature signal by changing the water temperature signal, then the engine ECU performs finishing calculation, and then sends out an instruction to control the rotation speed of the silicone oil fan, then the response time and the actual rotation speed of the silicone oil fan are obtained, the proportional-integral control parameter is adjusted by the rotation speed deviation of the actual rotation speed and the final rotation speed, then the engine is continuously loaded with a load, the rotation speed of the engine is increased, and further the operation parameter of the engine is changed, for example, the water temperature is increased, thereby, the final rotation speed of the silicone oil fan is changed, then the proportional-integral control parameter is adjusted again according to the response time of the silicone oil fan and the rotation speed deviation of the actual rotation speed and the final rotation speed, so, a set of proportional-integral control parameter values applicable to different final rotation speeds can be finally determined by the speed regulation characteristic and the rotation speed fluctuation of the silicone oil fan in the whole section, the proportional-integral control parameter values are relative parameter values after test calibration and repeated comparison, thus, for the output of different final rotation speeds of the silicone oil fan, the proportional-integral control parameter values can be adjusted reasonably in real time, the follow-up property of the silicone oil fan, the follow-up of the cooling requirement of the silicone oil fan can be ensured, the response of the silicone oil fan can be kept better than the temperature of the existing intercooler, and the existing air temperature can be kept by the existing method.
Where the proportional-integral control parameter value is synchronously input to a MAP in the engine ECU, which may be expressed as: a table stored in advance in the engine ECU. Namely, the proportional-integral control parameter values obtained by the multiple times of test calibration and repeated comparison and measurement are input into the MAP, and the engine ECU outputs a control instruction after finishing calculation according to the proportional-integral control parameter input into the MAP, so that the rotating speed of the silicone oil fan can be adjusted. And the rotating speed of the silicone oil fan can be adjusted in real time along with the continuously changing proportional-integral control parameters.
Further, the operating parameters of the engine include: the water temperature parameter of the engine is used for determining a first request rotating speed of the silicone oil fan; and/or an oil temperature parameter of the engine to determine a second requested speed of the silicone oil fan.
That is, the water temperature signal of the engine or the oil temperature signal of the engine may be collected to determine the corresponding requested rotation speed, and of course, the operation parameters such as the intake air temperature or the exhaust air temperature signal of the engine may also be collected. For example, if the water temperature signal of the engine is T3 ℃, the corresponding first requested rotation speed is V3rmp, and the oil temperature signal of the engine is T4 ℃, the corresponding second requested rotation speed is V4rmp, different water temperature signals/oil temperature signals correspond to different requested rotation speeds.
Specifically, the requested rotation speed of the silicone oil fan is determined according to a water temperature parameter of the engine, and a certain control interval is designed, specifically, the following can be referred to:
when the water temperature T of the engine is less than 93 ℃ and the vehicle is at any speed, the required rotating speed of the silicone oil fan is 0rpm;
when the water temperature T of the engine is more than or equal to 93 ℃ and less than or equal to 112 ℃, the requested rotating speed of the silicone oil fan is within 500-4000 rpm;
when the water temperature T of the engine is higher than 112 ℃, the required rotating speed of the silicone oil fan is 4100-4200 rpm.
In summary, the required rotating speeds of different silicone oil fans are designed correspondingly according to different water temperature intervals, so that the cooling requirements of the engine at different water temperatures can be well met, the heat dissipation performance is improved, and the use power consumption is reduced.
Also, the operating parameters of the vehicle air conditioner include: and acquiring an outlet pressure parameter of the condenser of the vehicle air conditioner to determine a third request rotating speed of the silicone oil fan. Therefore, the outlet pressure value of the condenser of the vehicle air conditioner can be collected to determine the corresponding third request rotating speed, and of course, the outlet temperature value of the condenser can also be collected to determine the corresponding request rotating speed.
The control device of the silicone oil fan according to the second aspect of the present invention includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the control method when executing the computer program.
According to a vehicle of an embodiment of a third aspect of the present invention, there is provided a silicone oil fan and a control apparatus of the silicone oil fan, wherein the silicone oil fan operates in the control method of the silicone oil fan of the above-described embodiment.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A control method of a silicone oil fan is used for radiating heat of an engine, and is characterized by comprising the following steps:
acquiring the operating parameters of the engine and the operating parameters of the vehicle air conditioner to determine the target rotating speed of the silicone oil fan;
acquiring the actual rotating speed of the silicone oil fan, and determining the rotating speed deviation between the actual rotating speed and the target rotating speed of the silicone oil fan;
acquiring the response time of the silicone oil fan;
and adjusting the rotating speed of the silicone oil fan in real time according to the rotating speed deviation between the actual rotating speed and the target rotating speed of the silicone oil fan and the response time of the silicone oil fan.
2. The method for controlling the silicone oil fan according to claim 1, wherein the step of obtaining the operating parameters of the engine and the operating parameters of the vehicle air conditioner to determine the target rotating speed of the silicone oil fan further comprises:
and comparing the request rotating speed determined according to the operating parameters of the engine with the request rotating speed determined according to the operating parameters of the vehicle air conditioner, and selecting the maximum request rotating speed value as the request rotating speed of the silicone oil fan.
3. The method as claimed in claim 2, wherein the step of obtaining the operating parameters of the engine and the vehicle air conditioner to determine the target speed of the silicone oil fan further comprises:
and comparing the requested rotating speed of the silicone oil fan with the maximum allowable rotating speed of the silicone oil fan, and selecting a smaller rotating speed value as the target rotating speed of the silicone oil fan.
4. The method for controlling the silicone oil fan according to claim 1, wherein the target rotation speed of the silicone oil fan is controlled according to a duty ratio at each target rotation speed calibrated in advance and then output as the final rotation speed of the silicone oil fan.
5. The method for controlling the silicone oil fan according to claim 4, wherein the final rotating speed of the silicone oil fan is adjusted in real time according to a pre-calibrated proportional-integral control parameter according to the response time of the silicone oil fan and the deviation between the actual rotating speed and the final rotating speed of the silicone oil fan.
6. The method for controlling the silicone oil fan according to claim 5, wherein the step of adjusting the final rotation speed of the silicone oil fan in real time according to the pre-calibrated proportional-integral control parameter according to the response time of the silicone oil fan and the deviation between the actual rotation speed and the final rotation speed of the silicone oil fan further comprises:
presetting a group of proportional-integral control parameters;
determining an input speed of the engine;
changing the cooling requirement of the engine, obtaining the response time of the silicone oil fan and obtaining the final rotating speed and the actual rotating speed of the silicone oil fan;
and adjusting the proportional-integral control parameter according to the response time of the silicone oil fan and the deviation between the actual rotating speed and the final rotating speed, and recalibrating the adjusted proportional-integral control parameter value until the rotating speed deviation of the silicone oil fan at different final rotating speeds is controlled within the calibrated proportional-integral control parameter.
7. The method of controlling a silicone oil fan as recited in claim 1, wherein the operating parameters of the engine include: a water temperature parameter of an engine to determine a first requested rotational speed of the silicone oil fan; and/or the presence of a gas in the gas,
an oil temperature parameter of the engine to determine a second requested speed of the silicone oil fan.
8. The method of claim 1, wherein the operating parameters of the air conditioner comprise: and acquiring an outlet pressure parameter of the air conditioner condenser to determine a third requested rotating speed of the silicone oil fan.
9. A control device for a silicone oil fan, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the steps of the method according to any one of claims 1 to 8 are implemented when the computer program is executed by the processor.
10. A vehicle, characterized by comprising: a silicone oil fan that operates in the control method of a silicone oil fan according to any one of claims 1 to 8, and the control apparatus of a silicone oil fan according to claim 9.
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| CN202211527383.9A CN115750063A (en) | 2022-12-01 | 2022-12-01 | Control method of silicone oil fan, control device of silicone oil fan and vehicle |
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| CN202211527383.9A CN115750063A (en) | 2022-12-01 | 2022-12-01 | Control method of silicone oil fan, control device of silicone oil fan and vehicle |
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| CN105756767A (en) * | 2016-03-10 | 2016-07-13 | 优数通（北京）科技有限公司 | Control system and method capable of realizing stepless speed regulation of engine cooling fan |
| CN111911277A (en) * | 2020-08-25 | 2020-11-10 | 三一汽车制造有限公司 | Silicone oil fan control device and method and road roller |
| CN112523857A (en) * | 2020-11-30 | 2021-03-19 | 中国第一汽车股份有限公司 | Control method, device, storage medium and system of electric control silicone oil mechanical fan |
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