CN104912652A - Intercooling control system and method - Google Patents
Intercooling control system and method Download PDFInfo
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- CN104912652A CN104912652A CN201510270637.7A CN201510270637A CN104912652A CN 104912652 A CN104912652 A CN 104912652A CN 201510270637 A CN201510270637 A CN 201510270637A CN 104912652 A CN104912652 A CN 104912652A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention provides an intercooling control system and method. Cooling water is divided into two branches behind a water inflow pipe. The first water inflow branch enters a water outflow pipe through an intercooler, so that gas in a front intercooling air inflow pipe is cooled through cooling water in the intercooler, the cooled gas is conveyed to a supercharged engine through a rear intercooling air inflow pipe, the temperature of gas of an air outlet of the intercooler is acquired through a temperature sensor, an electronic control circuit controls the opening degree of a control valve in the second water inflow branch according to the relationship between the temperature of the gas and the preset temperature range so as to adjust the water flow of the cooling water in the first water inflow branch and the water flow of the cooling water in the second water inflow branch, and therefore the flow of water in the intercooler is controlled. Compared with the prior art that only gas in the front intercooling air inflow pipe is cooled, the intercooling control system controls the flow of water in the intercooler according to the gas inflow temperature and the preset temperature range, so that the temperature of inflow gas of the intercooling control system is accurately controlled.
Description
Technical field
The present invention relates to technical field of electromechanical control, more particularly, particularly relate to cold control system and method in one.
Background technique
Intercooler is a kind of component cooled the intake temperature of supercharged engine, is the important process parts in supercharged engine.It not only can reduce the intake temperature of motor, can also improve the power of motor.
In current supercharged engine, the operating diagram of cold control system is as shown in Figure 1, wherein, in cold control system comprise intake pipe 11, intercooler 12, in cold front suction tude 13, outlet pipe 14 and in cold rear suction tude 15.When supercharged engine normally works, cooling water in supercharged engine in intake pipe 11 flows to outlet pipe 14 again after intercooler 12 cools, in intake temperature in cold front suction tude 13 through intercooler 12 time by water quench, and cold rear suction tude 15 enters supercharged engine in being passed through by cooled gas, avoid the high temperature air after supercharging and directly enter supercharged engine, and the phenomenon causing supercharged engine to damage even dead fire occurs.
Although the structure of cold control system is simple in shown in Fig. 1, but it is Shortcomings still, such as, cold control system can not control accurately to intake temperature, simultaneously under the state of supercharged engine cold start-up or low-load, because the intake temperature of supercharged engine is lower, make the burn deterioration of supercharged engine, increase the oil consumption of supercharged engine.
Summary of the invention
In view of this, the object of this invention is to provide cold control system and method in one, for achieving the accurate control of intake temperature in the cold control system of centering.To achieve these goals, the invention provides following technological scheme:
The invention provides cold control system in one, cold front suction tude in comprising, in cold rear suction tude, intercooler, intake pipe and outlet pipe; In described, cold front suction tude connects the suction port of described intercooler, and in described, cold rear suction tude connects the air outlet of described intercooler, and in described, cold control system also comprises:
Control valve, temperature transducer and electronic control circuit;
Wherein, described intake pipe comprises the first water inlet shunt and the second water inlet shunt, and the cooling water in described first water inlet along separate routes enters described outlet pipe by described intercooler, and the described second cooling water of intaking along separate routes enters described outlet pipe by described control valve;
Described temperature transducer is for gathering the gas temperature at the air outlet place of described intercooler;
Described electronic control circuit is used for the aperture controlling described control valve according to described gas temperature and preset temperature range, to realize the control of the water flow to intercooler.
Preferably, described electronic control circuit comprises: central processing unit (CPU), and described central processing unit (CPU) is used for obtaining voltage control signal according to the relation of described gas temperature and preset temperature range, and controls the aperture of described servovalve according to described voltage control signal.
Preferably, described central processing unit (CPU) comprises:
Amplifier, for amplifying described voltage control signal;
Controller, for the voltage control signal after amplification is converted to current controling signal, and controls the aperture of described servovalve according to the situation of change of described current controling signal.
Preferably, described control valve is electrohydraulic control.
The present invention also provides cooling control method in one, be applied to above-mentioned in cold control system, described method comprises:
Obtain the gas temperature at the air outlet place of the described intercooler that described temperature transducer gathers;
Judge whether described gas temperature is less than the lower limit of preset temperature range; If so, the aperture of described control valve is increased;
When make after the aperture Preset Time increasing described control valve gas temperature be greater than preset temperature range lower limit and be greater than preset temperature range upper in limited time, reduce the aperture of described control valve;
When make after the aperture Preset Time increasing described control valve gas temperature be greater than preset temperature range lower limit and be not more than preset temperature range upper in limited time, the aperture maintaining described control valve does not fade to the upper limit that described intake temperature is greater than preset temperature range, prescribe a time limit when described intake temperature is greater than the upper of preset temperature range, reduce the aperture of described control valve;
Still be not more than the lower of described preset temperature range when making gas temperature after the aperture Preset Time increasing described control valve to prescribe a time limit, the aperture continuing to increase described control valve is still greater than the lower limit of described preset temperature range to gas temperature, when continue to increase the aperture of described control valve make gas temperature be greater than preset temperature range lower limit and be not more than preset temperature range upper in limited time, the aperture maintaining described control valve does not fade to the upper limit that described intake temperature is greater than preset temperature range, prescribe a time limit when described intake temperature is greater than the upper of preset temperature range, reduce the aperture of described control valve,
If not, judge whether described gas temperature is less than the upper limit of preset temperature range, prescribe a time limit when described gas temperature is not less than the upper of preset temperature range, reduce the aperture of described control valve;
The aperture wherein reducing described control valve comprises: reduce once the aperture of described control valve until described gas temperature is less than the preset temperature range upper limit and is greater than preset temperature range lower limit at interval of Preset Time, when reduce the aperture of described control valve make described intake temperature be less than preset temperature range the upper limit and be not more than described preset temperature range lower in limited time, return the aperture increasing described control valve.
Preferably, to increase and the aperture that reduces described control valve comprises:
Voltage control signal is obtained according to the current described gas temperature of temperature transducer collection and the relation of preset temperature range;
Described voltage control signal is amplified, and the voltage control signal after amplifying is converted to current controling signal;
The current described current controling signal obtained and the last described current controling signal obtained are compared;
On The Current Value is less than On The Current Value in the described circuit control signal once obtained in the current current controling signal obtained, reduce the aperture of described control valve;
On The Current Value is not less than On The Current Value in the described circuit control signal once obtained in the current current controling signal obtained, increase the aperture of described control valve.
Compared with prior art, advantage of the present invention is as follows:
In provided by the invention in cold control system, cooling water is divided into two-way after intake pipe, wherein the first water inlet enters outlet pipe by intercooler along separate routes, the gas in cold front suction tude is made to utilize the cooling water in intercooler to cool, and by cooled gas by cold rear suction tude pass to supercharged engine, simultaneous temperature sensor is captured in the gas temperature at intercooler air outlet place, electronic control circuit also controls the second aperture of intaking control valve along separate routes according to the relation of gas temperature and preset temperature range, to regulate the water flow of cooling water in the first water inlet shunt and the second water inlet along separate routes, and then the control realized water flow in intercooler.Compared with carrying out cooling with the gas in prior art the cold front suction tude of centering, in provided by the invention, cold control system is by intake temperature and preset temperature range to the control of water flow in intercooler, achieves the accurate control of intake temperature in the cold control system of centering.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 be existing in the operating diagram of cold control system;
Fig. 2 for the embodiment of the present invention provide in the structural representation of cold control system;
Fig. 3 be shown in Fig. 2 in the structural representation of central processing unit (CPU) in cold control system;
Fig. 4 for the embodiment of the present invention provide in a kind of flow chart of cooling control method;
Fig. 5 for the embodiment of the present invention provide in the another kind of flow chart of cooling control method;
Fig. 6 for the embodiment of the present invention provide in increase and reduce the flow chart of aperture of control valve in cooling control method.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide cold control system in one, for accurately controlling the intake temperature of supercharged engine, in this, the structural representation of cold control system as shown in Figure 2, comprising: intake pipe 11, intercooler 12, in cold front suction tude 13, outlet pipe 14, in cold rear suction tude 15, temperature transducer 16, electronic control circuit 17 and control valve 18.
Wherein, cooling water after entering intake pipe 11, in cooling water in cold control system be divided into the first water inlet along separate routes and the second water inlet along separate routes, the first water inlet shunt flows to outlet pipe 14 by intercooler 12; Second water inlet flows to outlet pipe 14 by control valve 18 along separate routes.Gas by cold front suction tude 13 entered by intercooler 12 in cold rear suction tude 15 enter supercharged engine again, exist owing to there being cooling water in intercooler 12, so the gas entering intercooler 12 carries out cooling process under the effect of cooling water, then in being passed through by cooled gas, cold rear suction tude 15 passes in supercharged engine.For the ease of the collection of gas temperature cooled in intercooler 12, temperature transducer 16 is provided with in the air outlet of intercooler 12, temperature transducer 16 gathers the gas temperature at the air outlet place of intercooler, and gas temperature is transferred to electronic control circuit 17, gas temperature and preset temperature contrast by electronic control circuit 17, control the aperture of control valve 18, its control mode can be: electronic control circuit 17 is according to the relation size between gas temperature and preset temperature range, control the aperture of control valve 18 in real time, realize the control to water flow in two water inlets along separate routes in intake pipe.
It should be noted that, in embodiments of the present invention, the control means in electronic control circuit 17 can select chip microcontroller to the control of control valve 18, also can select the control of other control meanss realization to control valve 18.
In addition, electronic control circuit 17 comprises: central processing unit (CPU).Wherein:
Central processing unit (CPU), for obtaining voltage control signal according to the relation of described gas temperature and preset temperature range, and controls the aperture of control valve 18 according to described voltage control signal.In electronic control circuit 17, central processing unit (CPU) is core, the bearing signal of gas temperature and preset temperature range that it obtains temperature transducer 16 collection carries out computing, and operation result is converted to voltage control signal, and then control the aperture of control valve 18 in the second water inlet along separate routes.
Wherein, central processing unit (CPU) can also adopt structural representation as shown in Figure 3, can comprise:
Amplifier 71, for amplifying voltage control signal.
Controller 72, for the voltage control signal after amplification is converted to current controling signal, and controls the aperture of control valve 18 according to the situation of change of current controling signal.
In embodiments of the present invention, the voltage control signal that the bearing signal of the gas temperature that temperature transducer 16 is gathered by the amplifier 71 in central processing unit (CPU) by electronic control circuit 17 and preset temperature range converts to amplifies, and the voltage control signal after amplifying is converted to current controling signal under the effect of controller 72, and the aperture of control valve 18 is controlled according to the situation of change of current controling signal, and then control the water flow of the first water inlet along separate routes and in the second water inlet along separate routes, cooled gas temperature in intercooler 12 can be remained in preset temperature range, so that supercharged engine works under best intake temperature, improve the adequacy of oil inflame, realize energy-saving and emission-reduction.
Wherein, the control valve 18 adopted in the embodiment of the present invention can be electrohydraulic control, and after electrohydraulic control receives the analog current signal of electronic control circuit 17 transmission, corresponding Drazin inverse water flow, namely controls aperture size voluntarily according to the electrical signal received.It should be noted that, control valve 18 can be the control valve that electrohydraulic control also can be other types.
In provided by the invention in cold control system, cooling water is divided into two-way after intake pipe, wherein the first water inlet enters outlet pipe 14 by intercooler 12 along separate routes, the gas in cold front suction tude 13 is made to utilize the cooling water in intercooler 12 to cool, and cold rear suction tude 15 passes to supercharged engine in being passed through by cooled gas, simultaneous temperature sensor 16 is captured in the gas temperature at intercooler 12 air outlet place, electronic control circuit 17 also controls the second aperture of intaking control valve 18 along separate routes according to the relation size of gas temperature and preset temperature range, to regulate the water flow of cooling water in the first water inlet shunt and the second water inlet along separate routes, and then the control realized water flow in intercooler 12.Compared with carrying out cooling with the gas in prior art the cold front suction tude 13 of centering, in provided by the invention cold control system by intake temperature and preset temperature range to the control of water flow in intercooler 12, achieve the accurate control of intake temperature in the cold control system of centering, avoid under the state of supercharged engine cold start-up or low-load simultaneously, because the intake temperature of supercharged engine is lower, make the burn deterioration of supercharged engine, the phenomenon increasing the oil consumption of supercharged engine occurs.
Embodiment is corresponding with said system, and the embodiment of the present invention additionally provides cooling control method in one.Refer to Fig. 4, it illustrates the flow chart of a kind of middle cooling control method that the embodiment of the present invention provides, in this, cooling control method is applied in additional issue motor, can comprise the following steps:
Step 101: the gas temperature obtaining the air outlet place of the described intercooler that described temperature transducer gathers.
Step 102: judge whether described gas temperature is less than the lower limit of preset temperature range; If so, the aperture of described control valve is increased.
Step 103: when make after the aperture Preset Time increasing described control valve gas temperature be greater than preset temperature range lower limit and be greater than preset temperature range upper in limited time, reduce the aperture of described control valve.
Step 104: when make after the aperture Preset Time increasing described control valve gas temperature be greater than preset temperature range lower limit and be not more than preset temperature range upper in limited time, the aperture maintaining described control valve does not fade to the upper limit that described intake temperature is greater than preset temperature range, prescribe a time limit when described intake temperature is greater than the upper of preset temperature range, reduce the aperture of described control valve.
Step 105: be still not more than the lower of described preset temperature range when making gas temperature after the aperture Preset Time increasing described control valve and prescribe a time limit, the aperture continuing to increase described control valve is still greater than the lower limit of described preset temperature range to gas temperature, when continue to increase the aperture of described control valve make gas temperature be greater than preset temperature range lower limit and be not more than preset temperature range upper in limited time, the aperture maintaining described control valve does not fade to the upper limit that described intake temperature is greater than preset temperature range, prescribe a time limit when described intake temperature is greater than the upper of preset temperature range, reduce the aperture of described control valve.
Step 106: if not, judges whether described gas temperature is less than the upper limit of preset temperature range, prescribes a time limit, reduce the aperture of described control valve when described gas temperature is not less than the upper of preset temperature range.
The aperture wherein reducing described control valve comprises: reduce once the aperture of described control valve until described gas temperature is less than the preset temperature range upper limit and is greater than preset temperature range lower limit at interval of Preset Time, when reduce the aperture of described control valve make described intake temperature be less than preset temperature range the upper limit and be not more than described preset temperature range lower in limited time, return the aperture increasing described control valve.
In embodiment provided by the invention, by gas in cold front suction tude enter after cooling through intercooler in cold after suction tude, to enter in supercharged power generator.The cooled gas temperature that temperature transducer collection is discharged by intercooler air outlet, the gas temperature signal of collection is transferred to electronic control circuit, gas temperature and the temperature range preset compare by electronic control circuit, judge whether be in preset temperature range through the cooled gas temperature of intercooler.Optimum temperature range when wherein preset temperature range is supercharged engine work, it arranges according to the working state of supercharged engine, is not random.If cooled gas temperature is in preset temperature range, then the aperture size of control valve is not done to change, if cooled gas temperature is not in preset temperature range, then to make corresponding adjustment according to the magnitude relationship of gas temperature and preset temperature range.
The situation of preset temperature range is not in for gas temperature after cooling, first will judges whether gas temperature is less than the lower limit of preset temperature range; If so, the aperture of control valve is increased.It should be noted that, the aperture of increase control valve is herein not increase always, but the real-time gas temperature of comparison collection and the relation of preset temperature range.It is mainly divided into following several situation:
One, after the aperture Preset Time increasing control valve, if gas temperature be greater than preset temperature range lower limit and be greater than preset temperature range upper in limited time, control valve is controlled by electronic control circuit, reduce the aperture of control valve, make to be increased by the water flow of intercooler in the first water inlet along separate routes, and then reduce gas temperature.
They are two years old, when after the aperture Preset Time increasing control valve, gas temperature be greater than preset temperature range lower limit and be not more than preset temperature range upper in limited time, then continue the aperture maintaining control valve, until the gas temperature collected is greater than the upper of preset temperature range control control valve by electronic control circuit in limited time, reduce the aperture of control valve, make to be increased by the water flow of intercooler in the first water inlet along separate routes, and then reduce gas temperature.
They are three years old, when after the aperture Preset Time increasing control valve, gas temperature is still not more than the lower of preset temperature range and prescribes a time limit, then control control valve by electronic control circuit, continue the aperture increasing control valve, until gas temperature be greater than preset temperature range lower limit and be not more than preset temperature range upper in limited time, then maintain control valve aperture size now, prescribe a time limit until the gas temperature collected is greater than the upper of preset temperature range, control valve is controlled by electronic control circuit, reduce the aperture of control valve, make to be increased by the water flow of intercooler in the first water inlet along separate routes, and then reduction gas temperature.Judge whether gas temperature is less than the upper limit of preset temperature range, prescribe a time limit when gas temperature is not less than the upper of preset temperature range, then the aperture reducing control valve increases the cooling water flow of intercooler simultaneously.Wherein, the process reducing the aperture of control valve is: the aperture reducing a control valve at interval of Preset Time, until gas temperature is less than the preset temperature range upper limit and is greater than preset temperature range lower limit, when reduce the aperture of control valve make gas temperature be less than preset temperature range the upper limit and be not more than preset temperature range lower in limited time, return the aperture increasing control valve.
It should be noted that, Preset Time preset before supercharged engine starts.
The gas temperature signal collected is transferred to electronic control circuit by temperature transducer, and gas temperature and preset temperature range compare by electronic control circuit, according to both magnitude relationship, makes corresponding control to control valve.
Wherein, the implementation process of middle cooling control method can reference drawing 5, it illustrates the detailed operation flow chart of a kind of middle cooling control method that the embodiment of the present invention provides, can comprise step:
Step 201: judge whether gas temperature is less than the lower limit of preset temperature range, if so, then performs step 202, if not, then performs step 208.
Step 202: control control valve aperture by electronic control circuit and increase, regulates the cooling water inflow of the first water inlet along separate routes and in the second water inlet along separate routes.
Step 203: control control valve and increase aperture in Preset Time.
In order to better control the normal work of supercharged engine, be arranged in Preset Time to the control of control valve, namely when specified control valve needs the situation increasing or reduce, control valve is needed to keep a period of time in this state, this a period of time is just Preset Time, the aperture that can control control valve in this Preset Time remains unchanged, and namely maintains in the determined aperture of step 202, also can control control valve and increase aperture gradually.
Step 204: judge whether gas temperature is greater than the lower limit of preset temperature range.If so, then step 205 is performed; If not, then step 202 is performed.When gas temperature is not more than the lower limit of preset temperature range, need the aperture increasing control valve further, make gas temperature be greater than the lower limit of preset temperature range to make the cooling water entering intercooler reduce.
Step 205: judge whether gas temperature is greater than the upper limit of preset temperature range.If so, then step 206 is performed; If not, then step 203 is performed.When gas temperature is not more than the upper limit of preset temperature range, return step 203, now will maintain the aperture of control valve in the determined aperture of step 202.
Step 206: control control valve by electronic control circuit, makes its aperture reduce.
Step 207: control control valve and reduce aperture in Preset Time.The aperture that can control control valve in this Preset Time remains unchanged, and namely maintains in the determined aperture of step 206, also can control control valve and reduce aperture gradually.
Step 208: judge whether gas temperature is less than the upper limit of preset temperature range.If so, then step 209 is performed; If not, then step 206 is performed.When gas temperature is not less than the upper limit of preset temperature range, need the aperture reducing control valve further, make gas temperature be less than the upper limit of preset temperature range to make the cooling water increase entering intercooler.
Step 209: judge whether gas temperature is greater than the lower limit of preset temperature range.If so, then the aperture size of control valve is remained unchanged; If not, then step 202 is performed.
Prescribe a time limit when gas temperature is greater than the lower of preset temperature range, when namely gas temperature is in the scope of preset temperature range, then the aperture of retentive control valve is constant.In embodiments of the present invention, preset temperature range is determined according to the actual intake temperature (intake temperature is the gas temperature at the air outlet place of intercooler) of supercharged engine, when the actual intake temperature demand of supercharged engine is different, preset temperature range is different, and the upper and lower bound of its preset temperature range is also different accordingly.The determination of same Preset Time also can be determined according to the actual intake temperature of supercharged engine, this embodiment of the present invention is not limited to the value of preset temperature range and Preset Time.
Please refer to Fig. 6, it illustrates in a kind of middle cooling control method that the embodiment of the present invention provides a kind of flow chart of the aperture increasing and reduce control valve, can step be comprised:
Step 301: obtain voltage control signal according to the current described gas temperature of temperature transducer collection and the relation of preset temperature range.
Step 302: described voltage control signal is amplified, and the voltage control signal after amplifying is converted to current controling signal.
Step 303: the current described current controling signal obtained and the last described current controling signal obtained are compared.
Step 304: On The Current Value is less than On The Current Value in the described circuit control signal once obtained in the current current controling signal obtained, reduce the aperture of described control valve.
Step 305: On The Current Value is not less than On The Current Value in the described circuit control signal once obtained in the current current controling signal obtained, increase the aperture of described control valve.
In electronic control circuit, voltage control signal is obtained according to the gas temperature of temperature transducer collection and the bearing signal of preset temperature range, voltage control signal amplifies by the amplifier in electronic control circuit, current controling signal will be converted into, and the more current described current controling signal obtained and the last described current controling signal obtained, if On The Current Value is less than the situation of On The Current Value in the described circuit control signal once obtained in the current current controling signal obtained, then control control valve, namely the aperture of described control valve is reduced, increase the cooling water flow in intercooler, in the current current controling signal obtained, On The Current Value is not less than On The Current Value in the described circuit control signal once obtained, then increase the aperture of described control valve, reduce the cooling water flow in intercooler, achieve according to automatically being regulated by water flow by the intake temperature of supercharged engine, supercharged engine is worked under the state of temperature of the best.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or control panel, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
To the above-mentioned explanation of the disclosed embodiments, those skilled in the art are realized or uses the present invention.To be apparent for a person skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a cold control system in, cold front suction tude in comprising, in cold rear suction tude, intercooler, intake pipe and outlet pipe; In described, cold front suction tude connects the suction port of described intercooler, and in described, cold rear suction tude connects the air outlet of described intercooler, it is characterized in that, in described, cold control system also comprises:
Control valve, temperature transducer and electronic control circuit;
Wherein, described intake pipe comprises the first water inlet shunt and the second water inlet shunt, and the cooling water in described first water inlet along separate routes enters described outlet pipe by described intercooler, and the described second cooling water of intaking along separate routes enters described outlet pipe by described control valve;
Described temperature transducer is for gathering the gas temperature at the air outlet place of described intercooler;
Described electronic control circuit is used for the aperture controlling described control valve according to described gas temperature and preset temperature range, to realize the control of the water flow to intercooler.
2. system according to claim 1, it is characterized in that, described electronic control circuit comprises: central processing unit (CPU), described central processing unit (CPU) is used for obtaining voltage control signal according to the relation of described gas temperature and preset temperature range, and controls the aperture of described servovalve according to described voltage control signal.
3. system according to claim 2, is characterized in that, described central processing unit (CPU) comprises:
Amplifier, for amplifying described voltage control signal;
Controller, for the voltage control signal after amplification is converted to current controling signal, and controls the aperture of described servovalve according to the situation of change of described current controling signal.
4. system according to claim 1, is characterized in that, described control valve is electrohydraulic control.
5. a cooling control method in, be applied to as claimed in claim 1 in cold control system, it is characterized in that, described method comprises:
Obtain the gas temperature at the air outlet place of the described intercooler that described temperature transducer gathers;
Judge whether described gas temperature is less than the lower limit of preset temperature range; If so, the aperture of described control valve is increased;
When make after the aperture Preset Time increasing described control valve gas temperature be greater than preset temperature range lower limit and be greater than preset temperature range upper in limited time, reduce the aperture of described control valve;
When make after the aperture Preset Time increasing described control valve gas temperature be greater than preset temperature range lower limit and be not more than preset temperature range upper in limited time, the aperture maintaining described control valve does not fade to the upper limit that described intake temperature is greater than preset temperature range, prescribe a time limit when described intake temperature is greater than the upper of preset temperature range, reduce the aperture of described control valve;
Still be not more than the lower of described preset temperature range when making gas temperature after the aperture Preset Time increasing described control valve to prescribe a time limit, the aperture continuing to increase described control valve is still greater than the lower limit of described preset temperature range to gas temperature, when continue to increase the aperture of described control valve make gas temperature be greater than preset temperature range lower limit and be not more than preset temperature range upper in limited time, the aperture maintaining described control valve does not fade to the upper limit that described intake temperature is greater than preset temperature range, prescribe a time limit when described intake temperature is greater than the upper of preset temperature range, reduce the aperture of described control valve,
If not, judge whether described gas temperature is less than the upper limit of preset temperature range, prescribe a time limit when described gas temperature is not less than the upper of preset temperature range, reduce the aperture of described control valve;
The aperture wherein reducing described control valve comprises: reduce once the aperture of described control valve until described gas temperature is less than the preset temperature range upper limit and is greater than preset temperature range lower limit at interval of Preset Time, when reduce the aperture of described control valve make described intake temperature be less than preset temperature range the upper limit and be not more than described preset temperature range lower in limited time, return the aperture increasing described control valve.
6. method according to claim 5, is characterized in that, increases and the aperture that reduces described control valve comprises:
Voltage control signal is obtained according to the current described gas temperature of temperature transducer collection and the relation of preset temperature range;
Described voltage control signal is amplified, and the voltage control signal after amplifying is converted to current controling signal;
The current described current controling signal obtained and the last described current controling signal obtained are compared;
On The Current Value is less than On The Current Value in the described circuit control signal once obtained in the current current controling signal obtained, reduce the aperture of described control valve;
On The Current Value is not less than On The Current Value in the described circuit control signal once obtained in the current current controling signal obtained, increase the aperture of described control valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510270637.7A CN104912652A (en) | 2015-05-25 | 2015-05-25 | Intercooling control system and method |
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| CN201510270637.7A CN104912652A (en) | 2015-05-25 | 2015-05-25 | Intercooling control system and method |
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| CN201510270637.7A Pending CN104912652A (en) | 2015-05-25 | 2015-05-25 | Intercooling control system and method |
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| CN109798179A (en) * | 2019-01-19 | 2019-05-24 | 潍柴重机股份有限公司 | A kind of pressurized air means of deflation and bleed method |
| CN111140338A (en) * | 2019-12-02 | 2020-05-12 | 潍柴动力股份有限公司 | Engine protection method and system based on air inlet temperature |
| CN113107660A (en) * | 2021-03-31 | 2021-07-13 | 潍柴重机股份有限公司 | Control method of intercooler cooling system |
| CN114658533A (en) * | 2022-03-28 | 2022-06-24 | 一汽解放汽车有限公司 | Intercooler, engine intercooling system and vehicle |
| CN114718716A (en) * | 2022-03-09 | 2022-07-08 | 浙江吉利控股集团有限公司 | Intercooler control system, control method and vehicle with same |
| CN114893291A (en) * | 2022-05-09 | 2022-08-12 | 中国铁建重工集团股份有限公司 | Air inlet heating device and heating method for diesel generating set |
| CN115750070A (en) * | 2022-12-20 | 2023-03-07 | 江苏大学 | Non-road diesel engine air inlet working medium and fuel thermal management system and control method |
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| CN109798179A (en) * | 2019-01-19 | 2019-05-24 | 潍柴重机股份有限公司 | A kind of pressurized air means of deflation and bleed method |
| CN111140338A (en) * | 2019-12-02 | 2020-05-12 | 潍柴动力股份有限公司 | Engine protection method and system based on air inlet temperature |
| CN113107660A (en) * | 2021-03-31 | 2021-07-13 | 潍柴重机股份有限公司 | Control method of intercooler cooling system |
| CN114718716A (en) * | 2022-03-09 | 2022-07-08 | 浙江吉利控股集团有限公司 | Intercooler control system, control method and vehicle with same |
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| CN114893291A (en) * | 2022-05-09 | 2022-08-12 | 中国铁建重工集团股份有限公司 | Air inlet heating device and heating method for diesel generating set |
| CN114893291B (en) * | 2022-05-09 | 2023-08-08 | 中国铁建重工集团股份有限公司 | Air inlet heating device and heating method for diesel generator set |
| CN115750070A (en) * | 2022-12-20 | 2023-03-07 | 江苏大学 | Non-road diesel engine air inlet working medium and fuel thermal management system and control method |
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Application publication date: 20150916 |