KR101856129B1 - Control method of fluid fan clutch - Google Patents
Control method of fluid fan clutch Download PDFInfo
- Publication number
- KR101856129B1 KR101856129B1 KR1020150178496A KR20150178496A KR101856129B1 KR 101856129 B1 KR101856129 B1 KR 101856129B1 KR 1020150178496 A KR1020150178496 A KR 1020150178496A KR 20150178496 A KR20150178496 A KR 20150178496A KR 101856129 B1 KR101856129 B1 KR 101856129B1
- Authority
- KR
- South Korea
- Prior art keywords
- valve
- space
- shut
- shutoff valve
- temperature
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D35/00—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
- F16D35/02—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D35/00—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion
- F16D35/02—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part
- F16D35/021—Fluid clutches in which the clutching is predominantly obtained by fluid adhesion with rotary working chambers and rotary reservoirs, e.g. in one coupling part actuated by valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/02—Fluid-pressure mechanisms
Abstract
The present invention relates to a motorcycle comprising a rotating shaft which is installed in a vehicle provided with an engine and is powered by the engine, a fan body which is rotatably coupled to the rotating shaft and is divided into a first space and a second space, And a shut-off valve provided on the rotor for selectively shutting off the first space and the second space, wherein the shut-off valve selectively closes the first space and the second space, Wherein when the rotor rotates, the fan body is rotated by a friction force with the oil, and when the electric current is applied to the shutoff valve, the shutoff valve is maintained in a closed state, Decreasing the rotation of the rotating shaft; When the rotation of the rotary shaft is reduced, providing pressure to the shut-off valve to maintain the shut-off valve in a closed state; Blocking the current applied to the shut-off valve when the pressure is applied to the shut-off valve; After the current applied to the shut-off valve is cut off, the engine transmits power to the rotation shaft; Measuring the temperature of the cooling water flowing in the engine; And shutting off the pressure delivered to the shutoff valve when the temperature of the coolant is equal to or higher than the first temperature, and applying a current to the shutoff valve when the temperature of the coolant is less than the first temperature, And a control unit for controlling the fluid fan.
Description
The present invention relates to a control method of a fluid fan clutch installed in a vehicle.
Generally, a cooling fan for a vehicle is installed in an engine room of a vehicle, and cooling water circulating in the radiator and the engine is cooled to improve the cooling efficiency of the cooling water.
And this vehicle cooling fan is operated by the fluid fan clutch connected to the engine.
A conventional fluid fan clutch includes a rotating shaft that is powered by an engine, a fan body rotatably coupled to the rotating shaft and having an inner space divided into a first space and a second space, A rotor fixed to the rotating shaft, and a shut-off valve selectively communicating the first space and the second space.
When the shutoff valve is opened and the oil in the first space moves to the second space, the fan body is simultaneously rotated by the viscous resistance of the oil in the second space when the rotor rotates.
On the other hand, the control method of the shut-off valve can be divided into an electronic control method and a mechanical control method.
The electronic control method generally controls the shutoff valve to be opened when a current is applied to the shutoff valve in case of failure of electrical parts and the like installed in the vehicle.
Therefore, when the start of the engine is stopped, the current can not be continuously applied to the shut-off valve, so that the shut-off valve must be kept open.
On the other hand, the technique as a background of the present invention is disclosed in Korean Utility Model Registration No. 20-0461409.
SUMMARY OF THE INVENTION The present invention provides a control method of a fluid fan clutch which is created to solve the above-described problems and which can keep the shutoff valve closed even when the engine is stopped without consuming electric energy.
A control method of a fluid fan clutch according to the present invention is a control method for a fluid fan clutch comprising a rotating shaft provided in a vehicle provided with an engine and being powered by the engine and a fan body rotatably coupled to the rotating shaft, A rotor rotatably installed in the fan body and fixed to the rotary shaft; and a shut-off valve provided in the rotor for selectively blocking the first space and the second space, When the oil moves from the first space to the second space, the fan body is rotated by a friction force with the oil when the rotor rotates, and when the current is applied to the shut-off valve, the shut- The method comprising: decreasing rotation of the rotation shaft; When the rotation of the rotary shaft is reduced, providing pressure to the shut-off valve to maintain the shut-off valve in a closed state; Blocking the current applied to the shut-off valve when the pressure is applied to the shut-off valve; After the current applied to the shut-off valve is cut off, the engine transmits power to the rotation shaft; Measuring the temperature of the cooling water flowing in the engine; And shutting off the pressure delivered to the shutoff valve when the temperature of the coolant is equal to or higher than the first temperature, and applying a current to the shutoff valve when the temperature of the coolant is less than the first temperature, .
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According to the control method of the fluid fan clutch according to the present invention, even when the start of the engine is stopped, the shut-off valve can be operated without consuming electric energy to prevent the oil of the fan body from moving to the space where the rotor is located have.
As a result, when the engine is started and the rotor rotates, the fan body is prevented from rotating unnecessarily, and the startability of the engine can be improved.
1 is a cross-sectional view of a fluid fan clutch according to an embodiment of the present invention,
FIG. 2 is a partial block diagram for explaining the operation of the fluid fan clutch of FIG. 1;
3 is a view for explaining a structure of a hydraulic pressure part provided on a rotary shaft of the fluid fan clutch of FIG. 1,
Fig. 4 is a partial cross-sectional view of the hydraulic portion of the fluid fan clutch of Fig. 1,
5 is a flowchart of a fluid fan clutch according to another embodiment of the present invention.
Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings.
In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the understanding why the present invention is not intended to be a complete disclosure.
In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements.
Hereinafter, a fluid fan clutch and a control method thereof according to an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a cross-sectional view of a fluid fan clutch according to an embodiment of the present invention, FIG. 2 is a partial block diagram for explaining the operation of the fluid fan clutch of FIG. 1, FIG. 4 is a partial cross-sectional view of a hydraulic portion of the fluid fan clutch of FIG. 1, and FIG. 5 is a flowchart of a fluid fan clutch according to another embodiment of the present invention.
1 and 2, a
The
The
The inside of the
The oil stored in the
The
More specifically, the
The
Also, the
The shut-off
The
When the
The oil moved to the
That is, when the
Accordingly, when the amount of oil transferred to the
On the other hand, the shut-off
More specifically, when a current is applied to the
The
The
The
Here, the first temperature refers to the temperature of the predetermined cooling water, and the first temperature refers to a temperature at which the rotation of the
Referring to FIG. 3, the
The
The
When the
The
The
The
The
Accordingly, the air compressed by the
The
The
An
The
For example, the
Accordingly, the
The
The
For example, when compressed air flows into the
When the
When the compressed air in the
When the
The
The
More specifically, one end of the
That is, the stopper 1524 is fixed to the
4, the
The
The
Meanwhile, the
More specifically, the
When the temperature measured by the
The
Thus, the
Hereinafter, a method of controlling the fluid fan clutch will be described in detail with reference to the drawings.
Referring to FIG. 5, a method of controlling a fluid fan clutch according to the present invention includes a
In
In the
More specifically, in
When the
At this time, since the current is applied to the
Next, in the
Since the
That is, according to the present invention, since the
The control method of the fluid fan clutch includes a
In
In the
If the temperature measured by the
Since the current is not applied to the
Accordingly, the oil in the
When the temperature measured by the
When the current is applied to the
Blocking the pressure delivered to the
While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.
100: Fluid fan clutch
110: fan body
120: Rotor
130:
140: Shutoff valve
Claims (10)
Decreasing the rotation of the rotation shaft;
When the rotation of the rotary shaft is reduced, providing pressure to the shutoff valve to maintain the shutoff valve in a closed state;
Blocking the current applied to the shut-off valve when the pressure is applied to the shut-off valve;
After the current applied to the shut-off valve is cut off, the engine transmits power to the rotation shaft;
Measuring the temperature of the cooling water flowing in the engine; And
And shutting off the pressure delivered to the shut-off valve when the temperature of the coolant is higher than the first temperature and shutting off the pressure transmitted to the shut-off valve after applying the current to the shut-off valve when the temperature of the coolant is less than the first temperature Wherein the control of the fluid fan clutch comprises the steps of:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020150178496A KR101856129B1 (en) | 2015-12-14 | 2015-12-14 | Control method of fluid fan clutch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150178496A KR101856129B1 (en) | 2015-12-14 | 2015-12-14 | Control method of fluid fan clutch |
Publications (2)
Publication Number | Publication Date |
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KR20170070682A KR20170070682A (en) | 2017-06-22 |
KR101856129B1 true KR101856129B1 (en) | 2018-05-09 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020150178496A KR101856129B1 (en) | 2015-12-14 | 2015-12-14 | Control method of fluid fan clutch |
Country Status (1)
Country | Link |
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KR (1) | KR101856129B1 (en) |
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2015
- 2015-12-14 KR KR1020150178496A patent/KR101856129B1/en active IP Right Grant
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KR20170070682A (en) | 2017-06-22 |
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