US20140161609A1 - Fan control system and method - Google Patents
Fan control system and method Download PDFInfo
- Publication number
- US20140161609A1 US20140161609A1 US14/093,363 US201314093363A US2014161609A1 US 20140161609 A1 US20140161609 A1 US 20140161609A1 US 201314093363 A US201314093363 A US 201314093363A US 2014161609 A1 US2014161609 A1 US 2014161609A1
- Authority
- US
- United States
- Prior art keywords
- value
- actual temperature
- trigger
- fan
- temperature value
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
A fan control system includes a sensor and a controller to control a fan. The controller obtains an actual temperature value sensed by the sensor. The controller speeds up the fan with a first predetermined value, in response to the actual temperature value being between a first and second trigger value, and speeds up the fan with a second predetermined value greater than the first predetermined value, in response to the actual temperature value being greater than the second trigger value.
Description
- 1. Technical Field
- The present disclosure relates to a fan control system.
- 2. Description of Related Art
- Controlling a fan in a computer plays a very important part in heat reduction. The speed of the fan may be controlled in real time in accordance with the amount of heat generated by the components. As the speed of the fan goes up and down with changes in temperature, the acceleration of the fan may be greater at one time, smaller at another time, which make the speed of the fan changed up and down in a short time, and this may cause unwanted noise.
- Therefore, there is room for improvement in the art.
- Many aspects of the present disclosure can be better understood with reference to the following drawing(s). The components in the drawing(s) are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present disclosure. Moreover, in the drawing(s), like reference numerals designate corresponding parts throughout the several views.
-
FIG. 1 is a block diagram of an embodiment of a fan control system of the present disclosure, wherein the fan control system includes a controller. -
FIG. 2 is a block diagram of the controller ofFIG. 1 . -
FIG. 3 is a flow chart of an embodiment of a fan control method of the present disclosure. -
FIG. 1 illustrates an embodiment of afan control system 1 of the present disclosure. Thefan control system 1 includes asensor 20 configured to sense temperature of a component, acontroller 10 generating a control signal according to the temperature sensed by thesensor 20, and afan 30 to be controlled by thecontroller 10. -
FIG. 2 illustrates that thecontroller 10 includes aprocessor 104 and amemory 105 storing a plurality of programs to be executed by theprocessor 104. The plurality of programs includes afirst control unit 101, asecond control unit 102, and anacceleration unit 108. Thefirst control unit 101 defines a first trigger value and a second trigger value. - The
acceleration unit 108 obtains an actual temperature value sensed by thesensor 20, and compares the actual temperature value with the first and second trigger values. For example, when the actual temperature value is greater than the first trigger value and is less than or equal to the second trigger value, thecontroller 10 causes thefan 30 to accelerate for a certain period of time. For example, thecontroller 10 controls thefan 30 to accelerate with a first predetermined value. When the actual temperature value sensed by thesensor 20 is greater than the second trigger value, thecontroller 10 controls thefan 30 to accelerate with a second predetermined value, where the second predetermined value is greater than the first predetermined value. If the actual temperature value sensed by thesensor 20 is less than or equal to the first trigger value, Thecontroller 10 do not perform the operation on thefan 30, and thefan 30 keeps the normal operation. In that condition, the speed of thefan 30 may be controlled by an original component of a computer, such as a baseboard management controller chip. - If the
acceleration unit 108 controls thefan 30 to accelerate with the second predetermined value for a predetermined time, thesecond control unit 102 sets the actual temperature value as a new second trigger value. In addition, theacceleration unit 108 continually obtains a new actual temperature value from thesensor 20, and compares the new actual temperature value with the first trigger value and the new second trigger value. - For example, the first trigger value may be 35 degrees Celsius, and the second trigger value may be defined with 55 degrees Celsius. If the
acceleration unit 108 obtains that the actual temperature value sensed by thesensor 20 is 40 degrees Celsius. Accordingly, theacceleration unit 108 determines that the actual temperature value is greater than the first trigger value and less than the second trigger value, theacceleration unit 108 controls thefan 30 to be accelerated with the first predetermined value, such as 3%. It indicates that an after-acceleration speed of thefan 30 is 1.03 times than a before-acceleration speed of thefan 30. Theacceleration unit 108 continuously obtains the new actual temperature value of the temperature sensed by thesensor 20. If theacceleration unit 108 obtains that the new actual temperature value is 30 degrees Celsius, it indicates that the speed of thefan 30 needs not be adjusted. If theacceleration unit 108 obtains that the new actual temperature value is 60 degrees Celsius after the first acceleration process, it indicates that the actual temperature value is greater than the second trigger value, theacceleration unit 108 controls thefan 30 to be accelerated with the second predetermined value, such as 6%. It indicates that an after-acceleration speed of thefan 30 is 1.06 times than a before-acceleration speed of thefan 30. Thesecond control unit 102 sets the actual temperature value as a new second trigger. Accordingly, the second trigger value is 60 degrees Celsius now, so that the second trigger value is changeable according to the actual temperature value when the actual temperature value is greater than the second trigger value. When thefan 30 is accelerated with the second predetermined value for a predetermined time, theacceleration unit 108 continuously obtains a new actual temperature value from thesensor 20, to compare the new actual temperature value with the first trigger value (35 degrees Celsius) and the second trigger value (60 degrees Celsius). When the new actual temperature value is 61 degrees Celsius, it indicates that the speed of thefan 30 does not meet the requirement, thus, theacceleration unit 108 continuously speeds up the speed of thefan 30 with the second predetermined value. -
FIG. 3 shows that a fan control method of the present disclosure. The fan control method includes following steps. - In step S1, the
first control unit 101 defines the first and second trigger values. - In step S2, the
acceleration unit 108 obtains the actual temperature value sensed by thesensor 20. - In step S3, the
acceleration unit 108 determines whether the actual temperature value is greater than the first trigger value. If the actual temperature value is greater than the first trigger value, step S4 is implemented. If the actual temperature value is less than or equal to the first trigger value, the process ends. - In step S4, the
acceleration unit 108 determines whether the actual temperature value is greater than the second trigger value. If the actual temperature value is greater than the second trigger value, step S6 is implemented, and if the actual temperature value is less than or equal to the second trigger value, step S5 is implemented. - In step S5, the
acceleration unit 108 speeds up the speed of thefan 30 with the first predetermined value, and returns to step S2. - In step S6, the
acceleration unit 108 speeds up the speed of thefan 30 with the second predetermined value. - In step S7, the
second control unit 102 sets the actual temperature value as a new second trigger value. - In step S8, the
acceleration unit 108 delays for the predetermined time before returning to step S2. - While the disclosure has been described by way of example and in terms of preferred embodiment, it is to be understood that the disclosure is not limited thereto. To the contrary, it is intended to cover various modifications and similar arrangements as would be apparent to those skilled in the art. Therefore, the range of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.
Claims (12)
1. A fan control system, comprising:
a sensor sensing a temperature and generating an actual temperature value; and
a controller comprising:
a processor; and
a memory storing a plurality of programs to be executed by the processor, and comprising:
a first control unit defining a first trigger value and a second trigger value; and
an acceleration unit comparing the actual temperature value with the first and second trigger values, wherein if the actual temperature value is greater than the first trigger value and is less than or equal to the second trigger value, the acceleration unit controls the fan to be accelerated with a first predetermined value.
2. The fan control system of claim 1 , wherein if the actual temperature value is greater the second trigger value, the acceleration unit controls the fan to be accelerated with a second predetermined value.
3. The fan control system of claim 2 , wherein the second predetermined value is greater than the first predetermined value.
4. The fan control system of claim 2 , wherein the controller further comprises a second control unit, when the fan is accelerated with the second predetermined value, the second control unit sets the actual temperature value as a new second trigger value.
5. The fan control system of claim 4 , wherein the acceleration unit delays for a predetermined time, after the second control unit sets the actual temperature value as the new second trigger value.
6. The fan control system of claim 5 , wherein the acceleration unit continuously compares a new actual temperature value with a new temperature sensed by the sensor with the first and the new second trigger values.
7. The fan control system of claim 6 , wherein the second predetermined value is greater than the first predetermined value.
8. A fan control method, comprising:
defining a first trigger value and a second trigger value;
obtaining an actual temperature value sensed by a sensor;
determining whether the actual temperature value is greater than the first trigger value and less than or equal to the second trigger value; and
speeding up the fan to be accelerated with a first predetermined value in response to the actual temperature value being greater than the first trigger value and less than or equal to the second trigger value.
9. The fan control method of claim 8 , further comprising:
speeding up the fan to be accelerated with a second predetermined value in response to the actual temperature value being greater than the second trigger value.
10. The fan control method of claim 9 , further comprising:
setting the actual temperature value as a new second trigger value in response to the actual temperature value being greater than the second trigger value.
11. The fan control method of claim 10 , further comprising:
delaying a predetermined time after setting the actual temperature value as the new second trigger value, before returning to the obtaining step.
12. The fan control method of claim 11 , wherein the second predetermined value is greater than the first predetermined value.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW101146352 | 2012-12-10 | ||
TW101146352A TW201422928A (en) | 2012-12-10 | 2012-12-10 | System and method for controlling fan noise |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140161609A1 true US20140161609A1 (en) | 2014-06-12 |
Family
ID=50881131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/093,363 Abandoned US20140161609A1 (en) | 2012-12-10 | 2013-11-29 | Fan control system and method |
Country Status (2)
Country | Link |
---|---|
US (1) | US20140161609A1 (en) |
TW (1) | TW201422928A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140169936A1 (en) * | 2012-12-14 | 2014-06-19 | Wistron Corporation | Method for detecting heat-dissipating air flow and electronic device using the same |
CN105464923A (en) * | 2014-09-09 | 2016-04-06 | 鸿富锦精密工业(武汉)有限公司 | Fan control system and method |
WO2016086620A1 (en) * | 2014-12-01 | 2016-06-09 | 中兴通讯股份有限公司 | Communication device, and multi-fan control method and apparatus therefor |
CN106704234A (en) * | 2015-07-30 | 2017-05-24 | 联想(北京)有限公司 | Control method and device |
CN109779939A (en) * | 2019-01-09 | 2019-05-21 | 合肥联宝信息技术有限公司 | Fan rotational frequency control method and device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6414843B1 (en) * | 1999-08-18 | 2002-07-02 | Nec Corporation | Cooling system for a computer apparatus |
US6592449B2 (en) * | 2001-02-24 | 2003-07-15 | International Business Machines Corporation | Smart fan modules and system |
US20050030171A1 (en) * | 2003-08-06 | 2005-02-10 | Tse-Hung Liu | Cooling system for computing device |
US20070156292A1 (en) * | 2002-06-20 | 2007-07-05 | Minebea Co., Ltd. | System and method of designing cooling fans |
US20070162160A1 (en) * | 2006-01-10 | 2007-07-12 | Giga-Byte Technology Co., Ltd. | Fan speed control methods |
US20120136498A1 (en) * | 2010-11-29 | 2012-05-31 | Inventec Corporation | Rack server system |
-
2012
- 2012-12-10 TW TW101146352A patent/TW201422928A/en unknown
-
2013
- 2013-11-29 US US14/093,363 patent/US20140161609A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6414843B1 (en) * | 1999-08-18 | 2002-07-02 | Nec Corporation | Cooling system for a computer apparatus |
US6592449B2 (en) * | 2001-02-24 | 2003-07-15 | International Business Machines Corporation | Smart fan modules and system |
US20070156292A1 (en) * | 2002-06-20 | 2007-07-05 | Minebea Co., Ltd. | System and method of designing cooling fans |
US20050030171A1 (en) * | 2003-08-06 | 2005-02-10 | Tse-Hung Liu | Cooling system for computing device |
US20070162160A1 (en) * | 2006-01-10 | 2007-07-12 | Giga-Byte Technology Co., Ltd. | Fan speed control methods |
US20120136498A1 (en) * | 2010-11-29 | 2012-05-31 | Inventec Corporation | Rack server system |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140169936A1 (en) * | 2012-12-14 | 2014-06-19 | Wistron Corporation | Method for detecting heat-dissipating air flow and electronic device using the same |
US9399997B2 (en) * | 2012-12-14 | 2016-07-26 | Wistron Corporation | Method for detecting heat-dissipating air flow and electronic device using the same |
CN105464923A (en) * | 2014-09-09 | 2016-04-06 | 鸿富锦精密工业(武汉)有限公司 | Fan control system and method |
WO2016086620A1 (en) * | 2014-12-01 | 2016-06-09 | 中兴通讯股份有限公司 | Communication device, and multi-fan control method and apparatus therefor |
CN106704234A (en) * | 2015-07-30 | 2017-05-24 | 联想(北京)有限公司 | Control method and device |
CN109779939A (en) * | 2019-01-09 | 2019-05-21 | 合肥联宝信息技术有限公司 | Fan rotational frequency control method and device |
Also Published As
Publication number | Publication date |
---|---|
TW201422928A (en) | 2014-06-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20140161609A1 (en) | Fan control system and method | |
US10520959B2 (en) | Temperature control device and auto-tuning method | |
EP3311245B1 (en) | Techniques to control computational resources for an electronic device | |
US9436241B2 (en) | Electronic device and method for adjusting fan of electronic device | |
US20140148954A1 (en) | Fan control system and fan contol method | |
US20190196655A1 (en) | Determining unintended touch rejection | |
US20130162435A1 (en) | Alarm system and method for fans | |
US20150118017A1 (en) | Electronic device and fan controlling method | |
US9927884B2 (en) | Non transitory computer readable recording medium for executing image processing method, and image sensing device applying the image processing method | |
CN115268616A (en) | Frequency control method and device for memory, electronic device and storage medium | |
CN109424570B (en) | Fan control method and device | |
US8615328B2 (en) | Noise reduction apparatus, method, and container data center including the same | |
JP6673950B2 (en) | Reference temperature setting device, reference temperature setting method and reference temperature setting program | |
US20150005947A1 (en) | Electronic device and method for controlling rotation speed of fan thereof | |
KR20190006550A (en) | Fast charge control method, fast charge control system and terminal device | |
US20120331473A1 (en) | Electronic device and task managing method | |
CN103821746A (en) | Fan monitoring method and sever system | |
US20140376177A1 (en) | Server with a function of generating fan table and method for generating fan table | |
TWI494748B (en) | Fan controlling method and notebook thereof | |
JP2019149041A (en) | Numerical control device | |
US10076066B2 (en) | Heat dissipating control module and related server device and heat dissipating control method | |
US20150005948A1 (en) | Electronic device and method for controlling rotation speed of fan thereof | |
CN114167963A (en) | Fan control management method, device, equipment and machine readable storage medium | |
CN104251218A (en) | Fan control device, fan control method and electronic equipment | |
EP3704562B1 (en) | Advanced power based thermal control systems |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HON HAI PRECISION INDUSTRY CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WEI, CHAO-KE;REEL/FRAME:033635/0128 Effective date: 20131128 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |