CN105317521A - Engine electric cooling fan multi-level control system - Google Patents
Engine electric cooling fan multi-level control system Download PDFInfo
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- CN105317521A CN105317521A CN201510773819.6A CN201510773819A CN105317521A CN 105317521 A CN105317521 A CN 105317521A CN 201510773819 A CN201510773819 A CN 201510773819A CN 105317521 A CN105317521 A CN 105317521A
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Abstract
An engine electric cooling fan multi-level control system comprises a sampling unit, a control unit and an action unit, wherein the sampling unit is connected with the input end of the control unit; the action unit is connected with the output ends of the control unit. The engine electric cooling fan multi-level control system is characterized in that the output ends of the control unit comprise a low-speed control end and a high-speed control end which are both connected with the control unit; the action unit comprises at least two motors used for driving a fan and a control loop used for adjusting the series-parallel connection relations of the motors through receiving end signal switching. The engine electric cooling fan multi-level control system is flexible in control, simple in structure, reliable to operate and capable of saving vehicle energy consumption and finishing a control target.
Description
Technical field
The invention belongs to engine-cooling system control field, particularly relate to a kind of electric engine cooling fan multilevel control system.
Background technique
Traditional cooling fan of engine is directly driven by engine crankshaft, or driven by dynamo belt, power required for this rigidly connected cooling fan accounts for the 3-5% of engine power, and low-powered engine is even more than 10%, and the fuel consume caused is very surprising.Rigidly connected fan is directly by the impact of engine speed, and design heat dissipation potential is motor maximum heating load is usually reference standard, but in actual motion, during time of engine low speed, cooling system temperature be forced heat radiation, cause engine temperature too low, winter engine warms difficulty phenomenon.
The current cooling fan without speed adjusting module cannot adjust rotating speed with the change of the gentle air conditioning pressure of engine water, can only close under the instruction of engine controller or operate with fixed rotating speed.So not only can increase energy consumption and the noise of cooling fan, also can affect the life-span of the optimum working temperature of motor, stability and cooling fan, and maintenance cost can be made like this to increase.
Summary of the invention
For the deficiency of existing scheme, the invention provides a kind of electric engine cooling fan multilevel control system, object is to provide a kind of and controls flexibly, structure is simple, reliable, can automobile energy consumption be saved and complete the electric engine cooling fan multilevel control system of control objectives.
Technological scheme of the present invention is to provide a kind of electric engine cooling fan multilevel control system, comprise sampling unit, control unit and motor unit, described sampling unit is connected with the input end of described control unit, described motor unit is connected with the output terminal of described control unit, it is characterized in that: the output terminal of described control unit comprises low speed control end and high speed control end, described low speed control end and described high speed control end are connected with described control unit respectively, described motor unit comprises at least two for the motor of drive fan and switched the control loop adjusting described motor series parallel connection annexation by receiving end signal.
As preferably of the present invention, described motor is provided with two altogether, comprise the first motor and the second motor, the power end of described motor is connected with the first normal power supply, and the power end of the second described motor is connected with the second normal power supply and earth point.
As preferably of the present invention, described control loop is provided with the first relay, the second relay and the 3rd relay; One end of the coil of the first described relay is connected with described low speed control end, and the other end is connected with the described first normal power supply, and the normally opened contact of the first described relay is connected between described first motor and the described first normal power supply; One end of the coil of the second described relay is connected with described high speed control end, the other end is connected with the described second normal power supply, the normally-closed contact of the second described relay is connected between described first motor and described second motor, and the normally opened contact of the second described relay is connected between described first motor and described earth point; The coil of described 3rd relay is connected with the coils from parallel connection of coils of described second relay, and the normally opened contact of described 3rd relay is connected between described second motor and the described second normal power supply.
As preferably of the present invention, the coil of the second described relay and the coils from parallel connection of coils of the 3rd described relay are between described high speed control end and the described second normal power supply.
As preferably of the present invention, the first described relay and the 3rd described relay are single-pole single-throw(SPST single contact normally opened relay, and the second described relay is single-pole double throw double-contact relay.
As preferably of the present invention, described control unit is by the controller of microcomputer as Main Processor Unit.
As preferably of the present invention, described sampling unit comprises cooling-water temperature transmitter and A/C pressure sensor.
As preferably of the present invention, described motor is direct current generator.
The present invention has following beneficial effect:
The present invention adopts the electronic cooling fan controller of self-contained engine, can make Control System of Cooling Fan control flexible, reliable, can control objectives be completed, and reduce engineering time and cost;
Driven by normal power supply, the impact that motor is opened can not be subject to, and automatically be controlled by electronic cooling fan controller, reach constant temperature and automatically cool;
The power of motor can not be shunted, the impact on motor when having stopped to dispel the heat.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure, 1-cooling-water temperature transmitter; 2-A/C pressure sensor; 3-controller; 4-motor; The normal power supply of 5-first; The normal power supply of 6-second; 7-first relay; 8-second relay; 9-the 3rd relay; 10-earth point; 301-low speed control end; 302-high speed control end; 401-first motor; 402-second motor.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Technological scheme of the present invention is: native system adopts split type control, namely refer to depart from motor, drive fan is completed by the electronic control module of outside, to reach the object that cooling system makes the cooling of motor appropriateness, the electronic control module of this outside is exactly motorcar electric cooling fan controller;
Native system fan adopts DC motor Driver, has good startability and durability.Control strategy adopts the cooling fan of taking as the leading factor with target water temperature and air conditioning pressure, the multipole that can realize fan controls, and comprises low speed and high speed, is equivalent to the speed shelves of domestic electric fan.Fan electromotor adopts microcomputer to control, and makes hardware circuit fairly simple, just can complete a lot of function with a small amount of chip, be easy to generalization, maintenance is relatively easy, and cost is also lower, and main hardware comprises: cooling-water temperature transmitter 1, A/C pressure sensor 2 and controller 3 etc.
As shown in Figure 1, the embodiment of the present invention comprises sampling unit, control unit and motor unit, sampling unit is connected with the input end of control unit, motor unit is connected with the output terminal of control unit, it is characterized in that: the output terminal of control unit comprises low speed control end 301 and high speed control end 302, low speed control end 301 and high speed control end 302 are connected with control unit respectively, and motor unit comprises at least two for the motor 4 of drive fan and switched the control loop adjusting motor 4 series parallel connection annexation by receiving end signal.Control unit is that microcomputer is single-chip microcomputer by the controller 3 of microcomputer as Main Processor Unit.Sampling unit comprises cooling-water temperature transmitter 1 and A/C pressure sensor 2.Motor 4 is direct current generator.
As shown in Figure 1, embodiment of the present invention motor 4 is provided with two altogether, comprise the first motor 401 and the second motor 402, the power end that the power end of motor 4 is connected with the first normal power supply 5, second motor 402 is connected with the second normal power supply 6 and earth point 10.Control loop is provided with the first relay 7, second relay 8 and the 3rd relay 9; One end of the coil of the first relay 7 is connected with low speed control end 301, and the other end is connected with the first normal power supply 5, and the normally opened contact of the first relay 7 is connected between the first motor 401 and the first normal power supply 5; One end of the coil of the second relay 8 is connected with high speed control end 302, the other end is connected with the second normal power supply 6, the normally-closed contact of the second relay 8 is connected between the first motor 401 and the second motor 402, and the normally opened contact of the second relay 8 is connected between the first motor 401 and earth point 10; The coil of the 3rd relay 9 is connected with the coils from parallel connection of coils of the second relay 8, and the normally opened contact of the 3rd relay 9 is connected between the second motor 402 and the second normal power supply 6.Wherein the coil of the second relay 8 and the coils from parallel connection of coils of the 3rd relay 9 are between high speed control end 302 and the second normal power supply 6.First relay 7 and the 3rd relay 9 are single-pole single-throw(SPST single contact normally opened relay, and the second relay 8 is single-pole double throw double-contact relay.
The rotating speed control voltage signal of native system fan electromotor has two-way command channel to provide, and cooling fan can be made to obtain the most directly cooling information, realizes to motor car engine in time and cool reliably.Two-way command channel is water temperature and air conditioning pressure respectively.On the engine cooling-water temperature sensor is installed, it tells the temperature experienced to motorcar electric cooling fan controller, controller obtains the temperature report of sensor, when temperature reaches setting value time, will open low speed as temperature reaches 92 ° of computers, temperature reaches 101 ° and opens at a high speed, when coolant temperature arrives 118 DEG C, coolant temperature controller connects coolant temperature warning light circuit, and coolant temperature warning light is bright on instrument panel.No matter open high speed or low speed, all want equitemperature to be reduced to 90 °, computer just can close fan.When air-conditioning is opened, compressor starts work, air-conditioning duct pressure starts to raise, A/C pressure sensor is reported to motorcar electric cooling fan controller pressure, when pressure reaches setting value, as pressure reach more than 10KG time, low speed opened by computer, and pressure reaches more than 14KG, and computer is opened at a high speed.The principle of the signal First come first served of these two passages, whose passage meets is opened requirement, and fan works at once;
The high speed low-speed running mode of native system fan adopts two electric fan serial fashions to obtain low speed, and two fan parallel connections obtain mode at a high speed and carry out rotating speed control.
Embodiment recited above is described the preferred embodiment of the present invention, not limits the spirit and scope of the present invention.Under the prerequisite not departing from design concept of the present invention; the various modification that related domain ordinary person makes technological scheme of the present invention and improvement; all should drop into protection scope of the present invention, the technology contents of request protection of the present invention, all records in detail in the claims.
Claims (8)
1. an electric engine cooling fan multilevel control system, comprise sampling unit, control unit and motor unit, described sampling unit is connected with the input end of described control unit, described motor unit is connected with the output terminal of described control unit, it is characterized in that: the output terminal of described control unit comprises low speed control end (301) and high speed control end (302), described low speed control end (301) and described high speed control end (302) are connected with described control unit respectively, described motor unit is comprised at least two motor for drive fan (4) and is switched the control loop adjusting described motor (4) series parallel connection annexation by receiving end signal.
2. a kind of electric engine cooling fan multilevel control system according to claim 1, it is characterized in that: described motor (4) is provided with two altogether, comprise the first motor (401) and the second motor (402), the power end of described motor (4) is connected with the first normal power supply (5), and the power end of described the second motor (402) is connected with the second normal power supply (6) and earth point (10).
3. a kind of electric engine cooling fan multilevel control system according to claim 2, is characterized in that: described control loop is provided with the first relay (7), the second relay (8) and the 3rd relay (9); One end of the coil of described the first relay (7) is connected with described low speed control end (301), the other end is connected with the described first normal power supply (5), and the normally opened contact of described the first relay (7) is connected between described first motor (401) and the described first normal power supply (5); One end of the coil of described the second relay (8) is connected with described high speed control end (302), the other end is connected with the described second normal power supply (6), the normally-closed contact of described the second relay (8) is connected between described first motor (401) and described second motor (402), and the normally opened contact of described the second relay (8) is connected between described first motor (401) and described earth point (10); The coil of described 3rd relay (9) is connected with the coils from parallel connection of coils of described second relay (8), and the normally opened contact of described 3rd relay (9) is connected between described second motor (402) and the described second normal power supply (6).
4. a kind of electric engine cooling fan multilevel control system according to claim 3, is characterized in that: the coil of described the second relay (8) and the coils from parallel connection of coils of the 3rd described relay (9) are between described high speed control end (302) and the described second normal power supply (6).
5. a kind of electric engine cooling fan multilevel control system according to claim 1, it is characterized in that: described the first relay (7) and the 3rd described relay (9) are single-pole single-throw(SPST single contact normally opened relay, and described the second relay (8) is single-pole double throw double-contact relay.
6. a kind of electric engine cooling fan multilevel control system according to claim 1, is characterized in that: described control unit is by the controller (3) of microcomputer as Main Processor Unit.
7. a kind of electric engine cooling fan multilevel control system according to claim 1, is characterized in that: described sampling unit comprises cooling-water temperature transmitter (1) and A/C pressure sensor (2).
8. a kind of electric engine cooling fan multilevel control system according to claim 1, is characterized in that: described motor (4) is direct current generator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510773819.6A CN105317521B (en) | 2015-11-13 | 2015-11-13 | A kind of electric engine cooling fan multilevel control system |
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| CN201510773819.6A CN105317521B (en) | 2015-11-13 | 2015-11-13 | A kind of electric engine cooling fan multilevel control system |
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| CN105317521B CN105317521B (en) | 2017-11-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107291086A (en) * | 2017-08-17 | 2017-10-24 | 湖南省旭崇智能装备实业有限公司 | The grating of robot pursues circuit |
| CN109098832A (en) * | 2018-08-28 | 2018-12-28 | 北京航天发射技术研究所 | A kind of Mobile Power Transmission assembly joint cooling system and control method |
| CN111520354A (en) * | 2020-05-13 | 2020-08-11 | 安徽江淮汽车集团股份有限公司 | Series-parallel control circuit and device |
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| CN205206932U (en) * | 2015-11-13 | 2016-05-04 | 湖州职业技术学院 | Electronic cooling fan multilevel control system of engine |
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2015
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| CN102684574A (en) * | 2011-03-10 | 2012-09-19 | 盖茨股份有限公司 | Driving circuit, motor driving method and vehicle engine heat exchange system |
| CN202690201U (en) * | 2012-06-27 | 2013-01-23 | 王建华 | Radiator fan control circuit of automotive engine cooling fluid |
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| CN111520354A (en) * | 2020-05-13 | 2020-08-11 | 安徽江淮汽车集团股份有限公司 | Series-parallel control circuit and device |
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| CN105317521B (en) | 2017-11-03 |
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Effective date of registration: 20191220 Address after: 314200 dafengqiaotu, east side of Jiuchang Road, group 5, Shilong village, Caoqiao street, Pinghu City, Jiaxing City, Zhejiang Province (Building 2, Pinghu Xinglong steel structure installation Co., Ltd.) Patentee after: Jiaxing jinrisheng Tools Co., Ltd. Parts Branch Address before: 313000 No. 299, Xuefu Road, Wuxing District, Zhejiang, Huzhou Patentee before: Huzhou Vocational Technology College |