CN106931145A - A kind of transmission oil temperature control system and method - Google Patents
A kind of transmission oil temperature control system and method Download PDFInfo
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- CN106931145A CN106931145A CN201511018996.XA CN201511018996A CN106931145A CN 106931145 A CN106931145 A CN 106931145A CN 201511018996 A CN201511018996 A CN 201511018996A CN 106931145 A CN106931145 A CN 106931145A
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- Prior art keywords
- temperature
- control valve
- lubricating oil
- change
- oil temperature
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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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
Abstract
The present invention relates to transmission oil domain of control temperature, there is provided a kind of transmission oil temperature control system and method, transmission oil temperature control system include：Heat control valve (2), the valve opening of the heat control valve (2) changes with the change of the lubricating oil temperature in the speed changer (1)；And water-cooled oil cooler (3), connected with the heat control valve (2), the lubricating oil of the water-cooled oil cooler (3) is flow to by the heat control valve (2) for cooling down；Wherein, the heat control valve (2) is on the pipeline that the water-cooled oil cooler (3) connects with the speed changer (1).Valve opening by heat control valve of the present invention changes with the change of lubricating oil temperature, realizing can cool down the lubricating oil that water-cooled oil cooler is flow to by heat control valve by water-cooled oil cooler, the precise control to transmission oil temperature is realized well, so as to substantially increase the efficiency of speed changer, the oil consumption of vehicle is reduced.
Description
Technical field
The present invention relates to transmission oil technical field of temperature control, more particularly to a kind of speed changer lubrication
Oil temperature control system and method.
Background technology
In recent years, developing rapidly with automobile industry, the purposes of automobile has no longer been only to meet people
The demand ridden instead of walk, people more pursue the comfortableization of automobile, intelligent and hommization.Automatic transmission because
Its operation and operating largely improve the comfort level in driving procedure, are especially gathered around in urban road
The fatigue of driver can farthest be alleviated when stifled, thus, automatic transmission has turned into more and more
The selection of consumer.
However, automatic transmission transmission efficiency for conventional manual transmission is relatively low, because its 20%
The energy of left and right will be consumed in the form of overcoming part resistance and in the form of heat.Produced this
Partial heat is eventually absorbed by lubricating oil, so as to the temperature for causing transmission oil can rise to
More than 120 DEG C, even more high.Automatic transmission lubricating oil (also as ATF oil) is easy at high temperature
It is oxidized, and viscosity can drastically decline under high temperature so that and lubricant effect is deteriorated, so as to influence speed changer
Normal work, can also shorten the life-span of speed changer.
Automatic transmission cooling system is very poor for the control accuracy of lubricating oil, the fluctuation model of lubricating oil temperature
Enclose also very big, it is impossible to which lubricating oil temperature is accurately controlled.For currently used by air-cooled
The mode that oil cooling system is cooled down to transmission oil, in high temperature environments, vehicle is in the big torsion of low speed
During square load long time running, it is low to be limited by head-on wind wind speed, so causing air-cooled oil cooler cooling effect
It is not good, ultimately cause transmission oil temperature drift.For currently used common water-cooled oil cooling
The mode that system is cooled down to transmission oil, under extreme low temperature environment, is limited by systemic circulation slow
Cannot open late so that water side temperature is relatively low, thus it is excessively obvious to water-cooled oil cooler cooling effect, most
Cause transmission oil temperature relatively low eventually.
The content of the invention
In view of this, the present invention is directed to propose a kind of transmission oil temperature control system, for solving
To the problem of the precise control of the lubricating oil temperature in speed changer.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of transmission oil temperature control system, the transmission oil temperature control system bag
Include：Heat control valve, the valve opening of the heat control valve changes with the change of the transmission oil temperature；
And water-cooled oil cooler, connected with the heat control valve, the water is flow to by the heat control valve for cooling down
The lubricating oil of cold oil cooler；Wherein, the heat control valve is arranged on the water-cooled oil cooler and the speed changer
On the pipeline of lubricating oil casing connection.
Further, the heat control valve has temperature sensor, and the valve opening of the heat control valve is according to the sense
The change of the lubricating oil temperature that warm body is sensed and change.
Further, the temperature sensor is temperature-sensing wax bag, and the volume of the temperature-sensing wax bag is with being sensed
The change of lubricating oil temperature and change, so as to change the valve opening of the heat control valve.
Further, the transmission oil temperature control system also includes：Water pump, it is cold for adjusting
But liquid flows into the speed of the water-cooled oil cooler；Oil temperature sensor, for detecting the transmission oil
Temperature；And controller, controlled for the lubricating oil temperature according to detected by the oil temperature sensor
The operating of the water pump.
Further, the controller is additionally operable to：The lubricating oil temperature is detected in the oil temperature sensor
Degree sends instruction of stopping in emergency more than in the case of a fixed threshold.
Relative to prior art, transmission oil temperature control system of the present invention has following excellent
Gesture：
(1) valve opening by heat control valve of the present invention with speed changer lubricating oil temperature change
And change, the direct control of transmission oil temperature is realized, so that water-cooled oil cooler can be cooled down
The lubricating oil flowed out by heat control valve, valve opening is bigger, and lubricating oil temperature is higher, by heat control valve stream
The lubricating oil for going out is more, however, this causes the lubricating oil for flowing into water-cooled oil cooler also more, can see
Go out, this realizes the precise control to transmission oil temperature well, so as to substantially increase speed change
The efficiency of device, reduces the oil consumption of vehicle.
(2) of the present invention using the temperature-sensing valve with temperature sensor, further, the temperature sensor can
The temperature-sensing wax bag that volume changes with the change of the lubricating oil temperature for being sensed is thought, in temperature-sensing wax bag
Paraffin is gradually changed into liquid with temperature change from low to high from solid-state, so that the volume of temperature-sensing wax bag
Also can be increasing, realize the purpose of the valve opening of adjust automatically heat control valve.
(3) speed that water-cooled oil cooler is flowed into by testing pump coolant of the present invention, and
Transmission oil temperature of the controller according to detected by oil temperature sensor controls the operating of water pump, can
With cooling of the regulation to lubricating oil when lubricating oil temperature is higher, so as to ensure in speed changer Life cycle
Optimum operating temperature is in, is become with the change of speed changer lubricating oil temperature by the rotating speed of water pump
Change, realize the indirect control by adjusting the flow velocity in coolant peripheral passage to transmission oil temperature
System, by the combination of water pump and heat control valve, realizes and speed change lubrication oil gradient is precisely controlled.
(4) it is of the present invention to detect lubricating oil temperature more than a fixed threshold in oil temperature sensor
In the case of, instruction of stopping in emergency is sent, can largely ensure traffic safety.
Another object of the present invention is to propose a kind of transmission oil temprature control method, for solving
To the problem of the precise control of the lubricating oil temperature in speed changer.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of transmission oil temprature control method, the transmission oil temprature control method bag
Include：Cooled down by the water-cooled oil cooler connected with heat control valve and the water-cooled oil cooling is flow to by the heat control valve
The lubricating oil of device；Wherein, the heat control valve is arranged on the water-cooled oil cooler and transmission oil casing
On the pipeline of connection, the valve opening of the heat control valve becomes with the change of the transmission oil temperature
Change.
Further, the heat control valve has temperature sensor, and the valve opening of the heat control valve is according to the sense
The change of the lubricating oil temperature that warm body is sensed and change.
Further, the temperature sensor is temperature-sensing wax bag, and the volume of the temperature-sensing wax bag is with being sensed
The change of lubricating oil temperature and change, so as to change the valve opening of the heat control valve.
Further, the transmission oil temprature control method also includes：Detect the speed changer profit
Oil temperature；And the water-cooled is flowed into controlling to adjust coolant according to detected lubricating oil temperature
The operating of the water pump of the speed of oil cooler.
Further, the transmission oil temprature control method also includes：Described in detected
Lubricating oil temperature sends instruction of stopping in emergency more than in the case of a fixed threshold.
The transmission oil temprature control method and above-mentioned transmission oil temperature control system phase
Had the advantage that for prior art identical, will not be repeated here.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Brief description of the drawings
The accompanying drawing for constituting a part of the invention is used for providing a further understanding of the present invention, of the invention
Schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.
In accompanying drawing：
Fig. 1 is the block diagram of the transmission oil temperature control system described in the embodiment of the present invention；
Fig. 2 is the transmission oil temperature control system schematic diagram described in the embodiment of the present invention；And
Fig. 3 is the frame of the further transmission oil temperature control system described in the embodiment of the present invention
Figure.
Description of reference numerals：
1- speed changers, 2- heat control valves, 3- water-cooled oil coolers, 4- engines, 5- water pumps, 6- radiators, 7-
Oil temperature sensor, 8- controllers.
Specific embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the spy in embodiment
Levying to be mutually combined.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 is the block diagram of the transmission oil temperature control system described in the embodiment of the present invention, such as Fig. 1
Shown, the system includes heat control valve 2 and water-cooled oil cooler 3.Heat control valve 2, the valve of the heat control valve 2
Aperture changes with the change of the lubricating oil temperature of speed changer 1；Water-cooled oil cooler 3 is connected with heat control valve 2,
The lubricating oil of water-cooled oil cooler 3 is flow to by heat control valve 2 for cooling down；Wherein, heat control valve 2 is arranged on
On the pipeline that water-cooled oil cooler 3 is connected with the lubricating oil casing of speed changer 1.
The present invention on the pipeline that the lubricating oil casing of speed changer 1 is connected by installing heat control valve 2 so that becomes
Lubricating oil temperature in the grease-box body of fast device 1 can be with precisely controlled.The valve of heat control valve 2 is opened
Degree changes with the change of the lubricating oil temperature of speed changer 1, and specifically, the lubricating oil temperature of speed changer 1 is got over
Height, the valve opening of heat control valve 2 is bigger, in the lubricating oil temperature of speed changer 1 less than a temperature upper limit value
In the case of, the valve of heat control valve 2 is to close, and now the lubricating oil of speed changer 1 flows through straight after heat control valve 2
Connect and flow back to the lubricating oil casing of speed changer 1 (being circulated equivalent in the lubricating oil box house of speed changer 1),
The lubricating oil temperature of speed changer 1 can rise rapidly.In the lubricating oil temperature of speed changer 1 more than temperature upper limit value
In the case of, the valve of heat control valve 2 opens a part of (namely not fully open, lubricating oil of speed changer 1
Temperature is higher, and valve opening is bigger), now the lubricating oil part of speed changer 1 will be by heat control valve 2
Valve flow to water-cooled oil cooler 3, water-cooled oil cooler 3 will be to flowing to this part of water-cooled oil cooler 3
Lubricating oil is cooled down, and the lubricating oil for not flowing to water-cooled oil cooler 3 is not cooled, and after heat control valve 2
Directly flow back to the lubricating oil casing of speed changer 1.Here the lubricating oil casing of speed changer 1 can be understood as gearbox.
Specifically, heat control valve 2 has temperature sensor, and the valve opening of heat control valve 2 is sensed with temperature sensor
To lubricating oil temperature change and change.With reference to Fig. 2, the present invention will be further elaborated.
Fig. 2 is the transmission oil temperature control system schematic diagram described in the embodiment of the present invention, empty in Fig. 2
Line represents the flow path of lubricating oil, and solid line represents the flow path of coolant.The grease-box of speed changer 1
Body is connected with heat control valve 2, and in the case where the valve of heat control valve 2 is opened, the lubricating oil of speed changer 1 passes through
Heat control valve 2 flow to water-cooled oil cooler 3, and the lubricating oil that the convection current of water-cooled oil cooler 3 comes is cooled down, cold
But the lubricating oil after flows back to the lubricating oil casing of speed changer 1 via heat control valve again, and this is oily side cooling procedure.
As shown in Fig. 2 in water side (that is, coolant side) cools down, (the radiating in the present invention of radiator 6
The principle of device 6 with it is identical in the prior art, therefore to its principle refuse description) coolant is cooled down,
Coolant flow to water-cooled oil cooler 3 and is cooled down (this area skill with to the lubricating oil in water-cooled oil cooler 3
Art personnel should be appreciated that the coolant in water-cooled oil cooler 3 is to separate with lubricating oil), wherein,
When needs, for example, in the case that lubricating oil temperature is very high, can be adjusted (here by water pump 5
It is to accelerate) flow velocity of coolant.Additionally, it will be appreciated by those skilled in the art that water-cooled oil cooler 3 flows
The coolant for going out can with for cooling down after the coolant of engine 4 mixes cooling engine 4.
As shown in Fig. 2 speed changer 1 (being actually the lubricating oil casing of speed changer 1) connects with heat control valve 2
It is logical so that the temperature sensor of heat control valve 2 can touch the lubricating oil of speed changer 1 such that it is able to according to speed change
The change of the lubricating oil of device 1 adjusts the valve opening of heat control valve 2.Wherein, temperature sensor can be temperature-sensing wax
Bag, the volume of temperature-sensing wax bag changes with the change of the lubricating oil temperature for being sensed, so as to change temperature adjustment
The valve opening of valve 2.Operating personnel can select corresponding heat control valve 2 according to real needs, to temperature
The requirement of degree is different, it is necessary to the heat control valve 2 of temperature-sensing wax bag of the selection with different temperature-sensitive effects.
Fig. 3 is the frame of the further transmission oil temperature control system described in the embodiment of the present invention
Figure, as shown in figure 3, the system also includes water pump 5, oil temperature sensor 7 and controller 8.Wherein,
Water pump 5 is used to adjust the speed that coolant flows into water-cooled oil cooler 3, for example, can be by accelerating to cool down
The flow velocity of liquid come accelerate cool down the grease-box body of speed changer 2 in lubricating oil (when lubricating oil temperature is higher
Start water pump 5 to increase the cooling effect of water-cooled oil cooler 3).Oil temperature sensor 7 is used to detect speed change
Device lubricating oil temperature；Controller 8 is used to the lubricating oil temperature according to detected by oil temperature sensor 7 control
The operating of water pump processed, pump operation is faster, and cooling effect is better.Wherein, by the valve of heat control valve 2
The lubricating oil for flowing to water-cooled oil cooler 3 carries out heat with the coolant for flowing through water pump 5 in water-cooled oil cooler 3
Exchange.
Technical scheme is specifically described with reference to Fig. 2, design temperature lower limit A and
Temperature upper limit B, the paraffin in temperature-sensing wax bag is solid-state in the case where temperature is less than temperature upper limit value A,
Paraffin in temperature-sensing wax bag is gradually changed into liquid and expands as temperature rises from solid-state, is more than in temperature
Paraffin in the case of temperature upper limit B in temperature-sensing wax bag is entirely liquid.
When vehicle just starts, lubricating oil temperature is less than temperature upper limit value A, and the paraffin in temperature-sensing wax bag is complete
It is solid-state, the valve closing of heat control valve 2, the lubricating oil of speed changer 1 will not reach water-cooled oil cooler 3, and
Only in the circulation of the lubricating oil box house of speed changer 1, the lubricating oil temperature of speed changer 1 rises rapidly, this feelings
Under condition, water air pump inoperative, water side is voluntarily circulated.
In the lubricating oil temperature of speed changer 1 temperature upper limit is less than or equal to more than or equal to temperature upper limit value A
In the case of value B, as temperature slowly rises, the temperature sensor (that is, temperature-sensing wax bag) of heat control valve 2
Liquid is gradually become by solid-state, during temperature sensor is changed into complete liquid from complete solid-state, temperature-sensing wax
Paraffin expansion in bag, promotes the push rod of heat control valve 2 then to open valve, that is to say, that temperature sensor
Volume is bigger, and the valve opening of heat control valve 2 is also bigger.Now, voluntarily being circulated by water side just can be with
Meet cooling of the water-cooled oil cooler 3 to lubricating oil, thus water pump can not work.
In the case where the lubricating oil temperature of speed changer 1 is more than temperature upper limit B, the valve of heat control valve 2 is complete
It is complete to open, can now start water pump 5 and operate, to increase water side cooling liquid speed, such that it is able to make profit
Lubricating oil fast cooling.Such case system, can detect lubricating oil temperature, in profit by oil temperature sensor
More than in the case of temperature upper limit B, the control of controller 8 starts water pump 5 and works oil temperature, also,
The lubricating oil temperature that controller can be detected according to oil temperature sensor controls the running speed of water pump 5,
It will be appreciated by those skilled in the art that lubricating oil temperature is higher, the running speed of water pump 5 is faster, specifically
Operating method can realize that it will not go into details by technology well known to those skilled in the art.
Temperatures above lower limit A and temperature upper limit B are not fixed values, and technical staff can basis
Different speed changer sets itselfs.Also, when the lubricating oil temperature of speed changer 1 changes from high to low, mistake
Journey is with described above conversely, it will not go into details in this.
Additionally, in order to ensure traffic safety, controller 8 can be also used for detecting profit in oil temperature sensor
Oil temperature sends and stops in emergency more than (that is, in abnormal condition) in the case of a fixed threshold
Instruction, the fixed threshold can be set according to actual conditions.
Technical scheme described in the present invention is particularly useful for automatic transmission above, and the present invention is mentioned
Water pump be generally electric water pump.
Correspondingly, present invention also offers a kind of flow chart of transmission oil temprature control method, should
Method includes：Cooled down by the water-cooled oil cooler connected with heat control valve and the water is flow to by the heat control valve
The lubricating oil of cold oil cooler；Wherein, the heat control valve is arranged on the pipe connected with transmission oil casing
Lu Shang, the valve opening of the heat control valve changes with the change of the transmission oil temperature.
It should be noted that the present invention provide transmission oil temprature control method detail and
Benefit is similar with the transmission oil temperature control system that the present invention is provided, and in this, it will not go into details.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all at this
Within the spirit and principle of invention, any modification, equivalent substitution and improvements made etc. should be included in
Within protection scope of the present invention.
Claims (10)
1. a kind of transmission oil temperature control system, it is characterised in that the transmission oil
Temperature control system includes：
Heat control valve (2), the valve opening of the heat control valve (2) is with the speed changer (1) lubricating oil
The change of temperature and change；And
Water-cooled oil cooler (3), is connected with the heat control valve (2), and the heat control valve is passed through for cooling down
(2) it flow to the lubricating oil of the water-cooled oil cooler (3)；
Wherein, the heat control valve (2) is installed in the water-cooled oil cooler (3) and the speed changer (1)
On the pipeline of lubricating oil casing connection.
2. transmission oil temperature control system according to claim 1, it is characterised in that
, with temperature sensor, the valve opening of the heat control valve (2) is according to the temperature sensor for the heat control valve (2)
The change of the lubricating oil temperature for being sensed and change.
3. transmission oil temperature control system according to claim 2, it is characterised in that
The temperature sensor is temperature-sensing wax bag, the volume of the temperature-sensing wax bag with the lubricating oil temperature for being sensed change
Change and change, so as to change the valve opening of the heat control valve (2).
4. transmission oil temperature control system according to claim 1 and 2, its feature exists
In the transmission oil temperature control system also includes：
Water pump (5), the speed of the water-cooled oil cooler (3) is flowed into for adjusting coolant；
Oil temperature sensor (7), for detecting the speed changer (1) lubricating oil temperature；And
Controller (8), for the lubricating oil temperature according to detected by the oil temperature sensor (7) come
Control the operating of the water pump (5).
5. transmission oil temperature control system according to claim 4, it is characterised in that
The controller (8) is additionally operable to：It is big the lubricating oil temperature to be detected in the oil temperature sensor (7)
In the case of a fixed threshold, instruction of stopping in emergency is sent.
6. a kind of transmission oil temprature control method, it is characterised in that the transmission oil
Temprature control method includes：
Cooled down by the heat control valve (2) by the water-cooled oil cooler (3) connected with heat control valve (2)
It flow to the lubricating oil of the water-cooled oil cooler (3)；
Wherein, the heat control valve (2) is moistened installed in the water-cooled oil cooler (3) and speed changer (1)
On the pipeline of lubricating oil casing connection, the valve opening of the heat control valve (2) is moistened with the speed changer (1)
The change of oil temperature and change.
7. transmission oil temprature control method according to claim 6, it is characterised in that
, with temperature sensor, the valve opening of the heat control valve (2) is according to the temperature sensor for the heat control valve (2)
The change of the lubricating oil temperature for being sensed and change.
8. transmission oil temprature control method according to claim 7, it is characterised in that
The temperature sensor is temperature-sensing wax bag, the volume of the temperature-sensing wax bag with the lubricating oil temperature for being sensed change
Change and change, so as to change the valve opening of the heat control valve (2).
9. the transmission oil temprature control method according to claim 6 or 7, its feature exists
In the transmission oil temprature control method also includes：
Detect the speed changer (1) lubricating oil temperature；And
Coolant is controlled to adjust according to detected lubricating oil temperature and flows into the water-cooled oil cooler (3)
Speed water pump (5) operating.
10. transmission oil temprature control method according to claim 9, it is characterised in that
The transmission oil temprature control method also includes：
In the case where the detected lubricating oil temperature is more than a fixed threshold, sends and stop in emergency
Instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018996.XA CN106931145A (en) | 2015-12-29 | 2015-12-29 | A kind of transmission oil temperature control system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511018996.XA CN106931145A (en) | 2015-12-29 | 2015-12-29 | A kind of transmission oil temperature control system and method |
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| CN201511018996.XA Pending CN106931145A (en) | 2015-12-29 | 2015-12-29 | A kind of transmission oil temperature control system and method |
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| CN109489973A (en) * | 2018-11-06 | 2019-03-19 | 武汉东湖大数据交易中心股份有限公司 | A kind of transmission for vehicles big data monitoring system |
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| CN114337104A (en) * | 2019-07-15 | 2022-04-12 | 华为技术有限公司 | Oil-cooled motor control device and method |
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| CN109630664A (en) * | 2019-02-27 | 2019-04-16 | 三汽车制造有限公司 | Fire fighting truck cooling system and fire fighting truck |
| CN114337104A (en) * | 2019-07-15 | 2022-04-12 | 华为技术有限公司 | Oil-cooled motor control device and method |
| CN111361410A (en) * | 2020-03-18 | 2020-07-03 | 吉泰车辆技术（苏州）有限公司 | Heat control system and control method for hybrid electric vehicle |
| CN111361410B (en) * | 2020-03-18 | 2024-04-02 | 吉泰车辆技术（苏州）有限公司 | Hybrid electric vehicle heat control system and control method |
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