CN103498722A - Automatic engine coolant concentration adjusting device and automatic engine coolant concentration adjusting method - Google Patents
Automatic engine coolant concentration adjusting device and automatic engine coolant concentration adjusting method Download PDFInfo
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- CN103498722A CN103498722A CN201310492889.5A CN201310492889A CN103498722A CN 103498722 A CN103498722 A CN 103498722A CN 201310492889 A CN201310492889 A CN 201310492889A CN 103498722 A CN103498722 A CN 103498722A
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Abstract
The invention provides an automatic concentration adjusting device for engine coolant, which comprises a separating device, a concentration branch, a dilution branch and a control system, wherein the concentration branch is connected with the control system; a separation membrane is arranged in the separation device to divide the space in the separation device into a concentrated solution area and a solvent area; the concentrated solution zone is connected in series on a main pipeline; the solvent area is provided with an exhaust port and a water outlet; one end of the concentration branch pipeline is connected with an exhaust port of a solvent area of the separation device, and the other end of the concentration branch pipeline is connected with a water pump; a concentration valve is arranged on the concentration branch pipeline; one end of the dilution branch pipeline is connected with a water outlet of the water storage container, and the other end of the dilution branch pipeline is connected with the cooling liquid circulation loop; a dilution valve is arranged on the dilution branch pipeline; and the control system controls the concentration valve and the dilution valve to be opened and closed according to the water temperature signal of the engine, the external air temperature signal of the automobile and the current concentration signal of the LLC. The invention can realize the automatic adjustment of the concentration of the engine coolant according to various working conditions and use environments of the vehicle.
Description
Technical field
The present invention relates to a kind of engine coolant concentration automatic control tegulatingdevice and Automatic adjustment method.
Background technique
Engine coolant (the aqueous solution of ethylene glycol commonly, hereinafter to be referred as " LLC ") its concentration (volume density of ethylene glycol) is deployed fixed value when vehicle dispatches from the factory, as needed, adjust, can only buy special-purpose stoste and be changed by the professional staff, vehicle itself can not be regulated automatically.
The following performance of the concentration affects of LLC:
1, air-conditioning heating performance: LLC concentration is lower, and the air-conditioning heating performance is better;
2, engine radiating performance: LLC concentration is lower, and the engine radiating performance is better;
3, the concentration of anti-freeze performance: LLC has determined its freezing point, because the LLC freezing point first reduces and raises afterwards with its concentration rising, the anti-freeze performance of LLC raises and the rear variation that first improves with its concentration, so LLC concentration just can not freeze at low temperatures in OK range, and motor could normally start.
In order to adapt to the weather conditions of different geographical, the LLC concentration that domestic many automobile manufacturing companies are sold to southern vehicle is lower, and the LLC concentration of selling to northern vehicle is higher.Like this, when winter, the south client vehicles was left for the north, the concentration of LLC must be heightened, otherwise LLC will freeze and cause vehicle to start.
Due to the many performances of LLC concentration affects vehicle, perfect condition is that LLC concentration can be adjusted automatically according to vehicle-state and vehicle Environmental Conditions.Yet present situation is that LLC concentration is just fixed when vehicle dispatches from the factory and follow-up needs are manually adjusted, and can't meet the various usage requirements of client.
Therefore, provide the adjustable engine coolant concentration automatic control tegulatingdevice of a kind of LLC concentration and method to become the problem that industry need to solve.
Summary of the invention
Different from prior art, the invention provides a kind of engine coolant concentration automatic control tegulatingdevice and Automatic adjustment method, and it can realize automatically regulating engine coolant concentration.
To achieve these goals, the invention provides a kind of engine coolant concentration automatic control tegulatingdevice, for automatically regulating the cooling liquid concentration of motor; Motor is undertaken cooling by cooling system, cooling system comprises the liquid circulation loop, and the liquid circulation loop comprises motor, air conditioner heating system, water pump and by the main line pipeline of its series connection; Wherein, the concentration automatic control tegulatingdevice comprises:
Segregating unit, be provided with a diffusion barrier space in it be divided into to concentrated solution district and solvent district two-part in this segregating unit; The concentrated solution district is series on the pipeline of main line; The solvent district is provided with relief opening and drain opening; It should be noted that the concentrated solution district can be series on any one section main line pipeline, for example, between motor and air conditioner heating system or between air conditioner heating system and water pump, is preferably between air conditioner heating system and water pump;
Concentrated branch road, it comprises concentrated bypass line; Should concentrate the relief opening that bypass line one end connects the solvent district of segregating unit, the other end connects water pump; Concentrated bypass line is provided with concentrated valve;
The dilution branch road, it comprises tank, dilution bypass line; Tank has water intake, water outlet; The drain opening in the solvent district of segregating unit is connected with the water intake of tank by pipeline; One end of dilution bypass line connects the water outlet of tank, and the other end is connected in the liquid circulation loop; The dilution bypass line is provided with dilution valves;
Control system, the current concentration signal control of its water temperature signal according to motor, automobile external air temperature signal, LLC concentrates the unlatching of valve, dilution valves, closes.
Normally, engine-cooling system further comprises the radiator branch road, and this radiator branch road is in parallel with air conditioner heating system, and is controlled and opened and closed by thermostat, for example, when the temperature of engine coolant reaches certain numerical value (82 ℃), opens.And the effect of air conditioner heating system is to carry hot air in car, to promote the temperature of interior space.For motor, air conditioner heating system and radiator have formed the two-stage radiation scheme: when the temperature of engine coolant does not include when high, only enable air conditioner heating system motor is dispelled the heat; When the temperature of engine coolant reaches certain value, open air conditioner heating system and radiator is dispelled the heat to motor simultaneously.
It should be noted that engine coolant is the term with respect to engine temperature, because cooling liquid is used for the motor of " cooling " automobile.Cooling liquid is by the motor of cooling automobile, obtains the heat energy by the air of air conditioner heating system for heating, thus cooling liquid with respect to atmospheric temperature in higher temperature.
In the present invention, the effect of tank is to hold the water of separating from segregating unit.
State that it should be noted that concentrated valve, dilution valves is divided into adjustment state and non-adjustment state.Wherein, in adjustment state, concentrated valve and dilution valves are linkage valve, and concentrated valve opens dilution valves and cuts out, and now the cooling liquid of motor is concentrated to adjusting, and after regulating, the cooling liquid concentration of motor improves; The dilution valves unlatching can concentrate valve and close, and now the cooling liquid of motor is diluted to adjusting, and after regulating, the cooling liquid concentration of motor reduces; In non-adjustment state, concentrated valve and dilution valves are closed simultaneously, now for the cooling liquid concentration of motor, are not regulated.
The present invention is on the basis of existing cooling system, append the segregating unit of water and ethylene glycol, outside air temperature and the current concentration of LLC according to engine water temperature, automobile, control moisture content and separate (improving LLC concentration) or moisture content recovery (reducing LLC concentration), thereby realize the automatic adjusting of engine coolant concentration, meet the various working condition requirements of vehicle.
Further, by segregating unit, realize separating of water and ethylene glycol, be provided with a diffusion barrier in this segregating unit the space in it is divided into to two-part: concentrated solution district and solvent district.It should be noted that the ethylene glycol in engine coolant can not pass to diffusion barrier, and water can pass this diffusion barrier.Water is that water pump is air-breathing to the solvent district, makes the solvent district form negative pressure, and then makes the water in concentrated solution district enter the solvent district through diffusion barrier through the condition of this diffusion barrier.
The present invention can realize the automatic adjusting of engine coolant concentration, and in the concentration adjustment process, do not need extraneous ethylene glycol or water to enter the cooling system of motor, also not needing ethylene glycol or water in engine-cooling system to flow out, is that the concentration of locking system is regulated automatically fully.
Another embodiment according to the present invention, control system comprises sensing system; Sensing system comprises engine water temperature sensor, automobile external air-temperature sensor, the current concentration sensor of LLC; Wherein, the current concentration sensor of LLC is positioned on the pipeline of main line, before segregating unit, is preferably between segregating unit and air conditioner heating system.
Another embodiment according to the present invention, the state of concentrated valve, dilution valves is divided into adjustment state and non-adjustment state; Wherein, in adjustment state, concentrated valve and dilution valves are linkage valve, and concentrated valve opens dilution valves and cuts out, and dilution valves is opened concentrated valve and closed; In non-adjustment state, concentrated valve and dilution valves are closed simultaneously.
Another embodiment according to the present invention, the diffusion barrier cross setting in segregating unit is divided into upper and lower two-part by the space in segregating unit: the concentrated solution district and the solvent district that is positioned at below that are positioned at top.
Another embodiment according to the present invention, the relief opening in solvent district is positioned at the side in solvent district, and the drain opening in solvent district is positioned at the bottom in described solvent district.Further, for example, tank is positioned at the below in solvent district, and its water outlet is positioned at the lower side of tank.
On the other hand, the invention provides a kind of concentration Automatic adjustment method of engine coolant, it comprises the steps:
(1) sensor gathers the signal of engine water temperature, automobile external temperature, the current concentration of LLC;
(2) controller receives the signal of engine water temperature signal, automobile external air temperature signal, the current concentration of LLC;
(3) controller, according to engine water temperature signal, automobile external air temperature signal, draws the aimed concn of LLC;
(4) controller compares the aimed concn of LLC and the current concentration of LLC, and the concentration of judgement LLC should raise, reduces or remain unchanged;
(5) when the current concentration of engine coolant, during in the aimed concn state, make concentrated valve, dilution valves in non-adjustment state; When the current concentration of engine coolant, during in non-aimed concn state, make concentrated valve, dilution valves in adjustment state, the concentration of LLC is raise or reduce, to be adjusted to aimed concn.
In the present invention, the amount of the ethylene glycol in the engine coolant of participation engine cooling circulation is constant, and the amount of the water in the engine coolant of participation engine cooling circulation is variable, turn down or heighten by the water yield by engine coolant, realize rising or the reduction of LLC concentration, thereby realize that the concentration of LLC is adjustable.
Further, the step in step (5), LLC concentration raise is: the moisture content in the cooling liquid that makes (to participate in the engine cooling circulation) in the liquid circulation loop reduces, and then improves the concentration of LLC.
Particularly, in step (5), the step of LLC concentration rising is realized by segregating unit, be provided with a diffusion barrier in this segregating unit the space in it is divided into to concentrated solution district and solvent district two-part, the concentrated solution district is series on the engine coolant circulation loop; Manufacture negative pressure by the solvent district at segregating unit, make the water in the concentrated solution district of segregating unit enter the solvent district through diffusion barrier, thereby the interior moisture content of cooling liquid that participates in the engine cooling circulation is reduced, and then improve the concentration of LLC.
Further, the step in step (5), LLC concentration reduced is: the interior moisture content of cooling liquid that participates in the engine cooling circulation is increased, and then reduce the concentration of LLC.
Particularly, the step in step (5), LLC concentration reduced is: make the water in tank enter the engine coolant circulation loop, thereby the moisture content in the cooling liquid in the liquid circulation loop is increased, and then reduce the concentration of LLC.
Compared with prior art, the present invention possesses following beneficial effect:
The present invention can be according to the various operating modes of vehicle and Environmental Conditions, realize the automatic adjusting of engine coolant concentration, when guaranteeing that engine coolant does not freeze, optimize vehicle air conditioning heating performance and engine radiating performance, thereby avoid the generation of the bad problem in market that causes because of current programme.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The accompanying drawing explanation
Fig. 1 has shown embodiment 1 engine coolant concentration automatic control tegulatingdevice and the engine-cooling system of applying it.
Embodiment
Embodiment 1
Fig. 1 has shown embodiment 1 engine coolant concentration automatic control tegulatingdevice and the engine-cooling system of applying it.
Motor is undertaken cooling by cooling system, cooling system comprises liquid circulation loop 1, radiator branch road 2, concentration automatic control tegulatingdevice 3, pipe arrangement 4.Liquid circulation loop 1 comprises motor 101, air conditioner heating system 102, water pump 103 and by the main line pipeline of its series connection.Radiator branch road 2 is in parallel with air conditioner heating system 102 respectively with pipe arrangement 4, and is controlled and opened and closed by thermostat 202, and radiator branch road 2 comprises radiator 201.
Concentration automatic control tegulatingdevice 3 comprises segregating unit 31, concentrated branch road 32, dilution branch road 33, control system 34.
Be provided with the diffusion barrier 313 of a cross setting in segregating unit 31, the space in segregating unit 31 is divided into to upper and lower two-part: the concentrated solution district 311 and the solvent district 312 that is positioned at below that are positioned at top.Concentrated solution district 311 is series on the pipeline of main line, between air conditioner heating system 102 and water pump 103; Solvent district 312 is provided with relief opening 314 and drain opening 315.The relief opening 314 in solvent district 312 is positioned at the lower side in solvent district 312, and the drain opening 315 in solvent district 312 is positioned at the bottom in solvent district 312.
Concentrated branch road 32 comprises concentrated bypass line 321; Should concentrate the relief opening 314 that bypass line 321 1 ends connect the solvent district 312 of segregating units 31, the other end connects water pump 103; Concentrated bypass line 321 is provided with concentrated valve 322.
Dilution branch road 33 comprises tank 331, dilution bypass line 334; Tank 331 has water intake, water outlet, accommodates the water 332 of separating from segregating unit 31 in it; Tank 331 is positioned at the below in solvent district 312, and tank 331 water outlets are positioned at the lower side of tank 331.The drain opening 315 in the solvent district 312 of segregating unit 31 is connected with the water intake of tank 331 by pipeline; One end of dilution bypass line 334 connects the water outlet of tank 331, and the other end is connected in the main line pipeline in liquid circulation loop 1, the position of nearly pump entrance; Dilution bypass line 334 is provided with dilution valves 333.
Control system 34 comprises sensing system and controller 341.Sensing system comprises engine water temperature sensor (not shown), automobile external air-temperature sensor (not shown), the current concentration sensor 342 of LLC; Wherein, the current concentration sensor 342 of LLC is on the pipeline of main line, between segregating unit 31 and air conditioner heating system 102.Controller 341 is controlled the unlatching of concentrated valve 322, dilution valves 333, is closed according to the water temperature signal A of motor, the current concentration signal C of automobile external air temperature signal B, LLC.
The state of concentrated valve 322, dilution valves 333 is divided into adjustment state and non-adjustment state; Wherein, in adjustment state, concentrated valve 322 and dilution valves 333 are linkage valve, and concentrated valve 322 opens dilution valves 333 and cuts out, and dilution valves 333 is opened concentrated valve 322 and closed; In non-adjustment state, concentrated valve 322 and dilution valves 333 are closed simultaneously.
The engine coolant concentration Automatic adjustment method of the present embodiment comprises the steps:
(1) sensor gathers engine water temperature signal A, the current concentration signal C of automobile external air temperature signal B, LLC;
(2) controller 34 receives the signal C of engine water temperature signal A, automobile external air temperature signal B, the current concentration of LLC;
(3) controller 34, according to engine water temperature signal A, automobile external air temperature signal B, draws the aimed concn of LLC;
(4) controller 34 compares the aimed concn of LLC and the current concentration of LLC, and the concentration of judgement LLC should raise, reduces or remain unchanged;
(5) when the current concentration of engine coolant, during in the aimed concn state, make concentrated valve 322, dilution valves 333 in non-adjustment state; When the current concentration of engine coolant, during in non-aimed concn state, make concentrated valve 322, dilution valves 333 in adjustment state, the concentration of LLC is raise or reduce, to be adjusted to aimed concn.
The step in step (5), LLC concentration raise is: control concentrated valve 322 and open, dilution valves 333 is closed, make the solvent district 312 of 103 pairs of segregating units 31 of water pump air-breathing, solvent district 312 at segregating unit 31 manufactures negative pressure, and then make the water in the concentrated solution district 311 of segregating unit 31 enter solvent district 312 through diffusion barrier 313, thereby the interior moisture content of cooling liquid that participates in the engine cooling circulation is reduced, and then improve the concentration of LLC.
The step in step (5), LLC concentration reduced is: control dilution valves 333 and open, concentrated valve 322 cuts out, make water pump 103 extract the water 332 of 331 li of tanks, thereby the interior moisture content of cooling liquid that participates in the engine cooling circulation is increased, and then reduce the concentration of LLC.
Embodiment 2
The present embodiment and embodiment's 1 difference is: do not comprise radiator, pipe arrangement, thermostat in cooling system.
Although the present invention discloses as above with preferred embodiment, not in order to limit scope of the invention process.Any those of ordinary skill in the art, within not breaking away from invention scope of the present invention, when doing a little improvement, every equal improvement of doing according to the present invention, should be scope of the present invention and contain.
Claims (10)
1. an engine coolant concentration automatic control tegulatingdevice, for automatically regulating the cooling liquid concentration of motor; Described motor is undertaken cooling by cooling system, described cooling system comprises the liquid circulation loop, and described liquid circulation loop comprises motor, air conditioner heating system, water pump and by the main line pipeline of its series connection; Wherein, described concentration automatic control tegulatingdevice comprises:
Segregating unit, be provided with a diffusion barrier space in it be divided into to concentrated solution district and solvent district two-part in described segregating unit; Described concentrated solution district is series on the pipeline of described main line; Described solvent district is provided with relief opening and drain opening;
Concentrated branch road, it comprises concentrated bypass line; Described concentrated bypass line one end connects the relief opening in the solvent district of described segregating unit, and the other end connects described water pump; Described concentrated bypass line is provided with concentrated valve;
The dilution branch road, it comprises tank, dilution bypass line; Described tank has water intake, water outlet; The drain opening in the solvent district of described segregating unit is connected with the water intake of described tank by pipeline; One end of described dilution bypass line connects the water outlet of described tank, and the other end is connected in described liquid circulation loop; Described dilution bypass line is provided with dilution valves;
Control system, described control system according to the current concentration signal of the water temperature signal of motor, automobile external air temperature signal, LLC control described concentrated valve, described dilution valves unlatching, close.
2. concentration automatic control tegulatingdevice as claimed in claim 1, wherein, described control system comprises sensing system; Described sensing system comprises engine water temperature sensor, automobile external air-temperature sensor, the current concentration sensor of LLC; Wherein, the current concentration sensor of described LLC be positioned on the pipeline of main line, before segregating unit.
3. concentration automatic control tegulatingdevice as claimed in claim 1, wherein, the state of described concentrated valve, dilution valves is divided into adjustment state and non-adjustment state; Wherein, in adjustment state, concentrated valve and dilution valves are linkage valve, and concentrated valve opens dilution valves and cuts out, and dilution valves is opened concentrated valve and closed; In non-adjustment state, concentrated valve and dilution valves are closed simultaneously.
4. concentration automatic control tegulatingdevice as claimed in claim 1, wherein, the diffusion barrier cross setting in described segregating unit is divided into upper and lower two-part by the space in described segregating unit: be positioned at the concentrated solution district of top and be positioned at the solvent district of below.
5. concentration automatic control tegulatingdevice as claimed in claim 4, wherein, the relief opening in the solvent district of described segregating unit is positioned at the side in described solvent district, and the drain opening in described solvent district is positioned at the bottom in described solvent district.
6. the concentration Automatic adjustment method of an engine coolant, it comprises the steps:
(1) sensor gathers the signal of engine water temperature, automobile external temperature, the current concentration of LLC;
(2) controller receives the signal of engine water temperature signal, automobile external air temperature signal, the current concentration of LLC;
(3) controller, according to engine water temperature signal, automobile external air temperature signal, draws the aimed concn of LLC;
(4) controller compares the aimed concn of LLC and the current concentration of LLC, and the concentration of judgement LLC should raise, reduces or remain unchanged;
(5) when the current concentration of engine coolant, during in the aimed concn state, make concentrated valve, dilution valves in non-adjustment state; When the current concentration of engine coolant, during in non-aimed concn state, make concentrated valve, dilution valves in adjustment state, the concentration of LLC is raise or reduce, to be adjusted to aimed concn.
7. concentration Automatic adjustment method as claimed in claim 6, wherein, the step in step (5), LLC concentration raise is: the moisture content in the cooling liquid in the liquid circulation loop is reduced, and then improve the concentration of LLC.
8. concentration Automatic adjustment method as claimed in claim 7, wherein, the step in step (5), LLC concentration raise realizes by segregating unit, be provided with a diffusion barrier in described segregating unit the space in it is divided into to concentrated solution district and solvent district two-part, described concentrated solution district is series on the engine coolant circulation loop; Manufacture negative pressure by the solvent district at segregating unit, make the water in the concentrated solution district of segregating unit enter the solvent district through diffusion barrier, thereby the interior moisture content of cooling liquid that participates in the engine cooling circulation is reduced, and then improve the concentration of LLC.
9. concentration Automatic adjustment method as claimed in claim 6, wherein, the step in step (5), LLC concentration reduced is: the moisture content that makes to participate in the cooling liquid of engine cooling circulation increases, and then reduces the concentration of LLC.
10. concentration Automatic adjustment method as claimed in claim 9, wherein, the step in step (5), LLC concentration reduced is: make the water in tank enter the liquid circulation loop, thereby the moisture content in the cooling liquid in the liquid circulation loop is increased, and then reduce the concentration of LLC.
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| CN201310492889.5A CN103498722B (en) | 2013-10-18 | 2013-10-18 | Automatic engine coolant concentration adjusting device and automatic engine coolant concentration adjusting method |
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| CN201310492889.5A CN103498722B (en) | 2013-10-18 | 2013-10-18 | Automatic engine coolant concentration adjusting device and automatic engine coolant concentration adjusting method |
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| CN112892391A (en) * | 2021-01-27 | 2021-06-04 | 中国工程物理研究院激光聚变研究中心 | Polishing solution moisture online adjustment precision control device and method |
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| CN103498722B (en) | 2015-10-14 |
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