CN102072007A - Cooling system for engine - Google Patents
Cooling system for engine Download PDFInfo
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- CN102072007A CN102072007A CN201010566219XA CN201010566219A CN102072007A CN 102072007 A CN102072007 A CN 102072007A CN 201010566219X A CN201010566219X A CN 201010566219XA CN 201010566219 A CN201010566219 A CN 201010566219A CN 102072007 A CN102072007 A CN 102072007A
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- cooling liquid
- flow
- temperature
- engine
- circular flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/162—Controlling of coolant flow the coolant being liquid by thermostatic control by cutting in and out of pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2023/00—Signal processing; Details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2037/00—Controlling
- F01P2037/02—Controlling starting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/08—Cabin heater
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Control Of Temperature (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
本发明公开了一种发动机冷却系统(1)，包括：冷却部(2)，其用于使冷却液通过其中流动；冷却液感温传感器部(3)，其检测冷却液温度；热交换装置(4)，其利用冷却液的热量；循环流量改变装置(5)，其用于改变循环流量；循环回路(6)，使冷却液通过其中流动；以及，控制器(7)，当收到来自热交换装置关于请求流量的请求时，通过参照冷却液温度，控制循环流量改变装置，控制器(7)对循环流量进行调节。当根据冷却液温度执行发动机预热时，控制器(7)确定用于预热的条件，控制循环流量改变装置，从而预热发动机而不循环冷却液，以及，在预热期间，当请求了请求流量时，控制器(7)在预定时段内将循环流量增加至请求流量。
The invention discloses an engine cooling system (1), comprising: a cooling part (2), which is used to make cooling liquid flow therethrough; a cooling liquid temperature sensor part (3), which detects the temperature of the cooling liquid; a heat exchange device (4), which utilizes the heat of the cooling liquid; the circulating flow changing device (5), which is used to change the circulating flow; the circulating loop (6), which makes the cooling liquid flow therethrough; and, the controller (7), which, when received The controller (7) regulates the circulation flow rate by controlling the circulation flow rate changing device with reference to the coolant temperature upon request from the heat exchanging means for the requested flow rate. When performing engine warm-up based on the coolant temperature, the controller (7) determines the conditions for warm-up, controls the circulation flow rate changing device so as to warm-up the engine without circulating the coolant, and, during warm-up, when requested When flow is requested, the controller (7) increases the cycle flow to the requested flow for a predetermined period of time.
Description
Technical field
The present invention relates to a kind of cooling system by the circulating cooling liquid cooled engine.More particularly, the present invention relates to a kind of engine-cooling system, it comprises the heat-exchange device that utilizes the cooling liquid heat.
Background technique
Known water-cooled cooling system is used widely, and it comes cooled engine by the pump circulation cooling liquid.Usually, the mechanical water pump that will be driven by engine crankshaft or by for the electric water pump that electric power drove from Vehicular accumulator cell is used for circulating cooling liquid.
JPH08-14043A (hereinafter referred to as patent documentation 1) has disclosed this cooling system, in the engine warming up process, and circulating cooling liquid not before water temperature reaches predetermined value, thus improve the pre-thermal efficiency.
According to the pump control unit that is used for internal-combustion engine disclosed in the patent documentation 1, with motor applications in the used water pump of circulating cooling liquid, and, according near the coolant temperature that temperature transducer detected that is positioned at the cooling liquid outlet, motor is controlled by control gear.According to the disclosure content of patent documentation 1, when coolant temperature is equal to or less than the desired lower limit temperature of motor normal starting, pump operation is stopped.When coolant temperature is higher than the desired lower limit temperature of motor normal starting and be equal to or less than the upper limiting temperature that quickens preheating, make water pump with high speed rotating.Therefore,, shortened the used time of running certainly of used starting time of starter motor and motor by stopping the running of water pump, and, by making water pump,, carry out engine running stably by means of the rapid whole motor of preheating with high speed rotating.
JP 2008-303775A (hereinafter referred to as patent documentation 2) has disclosed a kind of internal-combustion engine cooling system, and it comprises: condensate tank of dehumidifier, and it is arranged on the part place of coolant duct; And boiling detection (fluidized state detection) device, detect coolant boiling based on rate of rise.Patent documentation 2 discloses: the coolant boiling based on water level detects response, detects response faster than the coolant boiling based on temperature.Especially, patent documentation 2 discloses: when during engine warming up etc., water pump being stopped, comparing with detection based on temperature, and obviously sensitive more based on the detection response of water level.In addition, patent documentation 2 discloses: when stopping water pump, can in time detect the fluidized state of cooling liquid, thereby increase coolant rate, therefore reduce water temperature.Just, according to the disclosure content of patent documentation 2, improved the reliability that during carrying out engine warming up, stops pump operation.
On the other hand, usually, being applied to the heat of cooling liquid to the Motor Vehicle defrosting or heating, is favourable aspect efficiency.For example, except that being used to distribute the radiator of cooling liquid heat, the structure disclosed in the patent documentation 1 comprises the air conditioner that is used to heat.The air conditioner of heating uses a part of cooling liquid as thermal source.
In the known cooling system that comprises heat-exchange device such as the air conditioner of heating, in engine warming up and during not having circulating cooling liquid, under the situation of heat-exchange device request circular flow,, can bring problem if make liquid circulation in response to the request of heat-exchange device.According to the coolant temperature that will control, be used for the condition of preheating when determining warm-up the engine, for example, idling, fuel injection quantity, ignition timing etc.In these cases, usually, in the cooling liquid temperature-sensitive sensor part position that is positioned at the outlet of engine cooling portion, coolant temperature is detected, and, beginning after the circulation, the high temperature coolant in the motor is flow direction sensor portion at first, then, the outer cryogenic liquid flow direction sensor portion of motor.Therefore, increased the fluctuation that detects water temperature, be used for the conditional instability of preheating when making warm-up the engine, and the control that is used for preheating is also relatively more difficult.Especially, under preheating proceeds to a certain degree state, when flow that unexpected circulation is asked, make to detect the water temperature big ups and downs, this can influence motor.As the measure of the above-mentioned shortcoming of reply,, can reduce the fluctuation of water temperature if carry out preheating circulating cooling liquid simultaneously.Yet,, the pre-thermal efficiency is reduced with the degree of the circulation by cooling liquid from the cooling liquid distribute heat.
Therefore, for engine-cooling system, there is such demand: when not having circulating cooling liquid in the preheating of carrying out motor, when the circular flow of heat-exchange device request cooling liquid, even circulating cooling liquid, engine-cooling system also can stably be controlled the preheating of motor and can not influence motor.
Summary of the invention
According to above-mentioned situation, the invention provides a kind of engine-cooling system, comprising: be formed at the cooling part of motor, make cooling liquid pass through wherein to flow; Cooling liquid temperature-sensitive sensor part, it detects coolant temperature; Heat-exchange device, it utilizes the heat of cooling liquid; The circular flow modifier, it is used to change the circular flow of cooling liquid; Circulation loop, the cooling part of flowing through, cooling liquid temperature-sensitive sensor part, heat-exchange device and circular flow modifier make cooling liquid flow by circulation loop; And, controller, when receiving from heat-exchange device about the request of request flow, by control circle flow modifier, simultaneously with reference to coolant temperature, controller is regulated the circular flow of cooling liquid.Controller is used for the condition of the described motor of preheating when determining according to the temperature execution engine warming up of described cooling liquid, control circle flow modifier, thereby warm-up the engine and circulating cooling liquid not, and, during the warming up of motor, under the situation of having asked flow, controller increases to circular flow the request flow in scheduled time slot.
According to the present invention, engine-cooling system comprises engine cooling portion, cooling liquid temperature-sensitive sensor part, heat-exchange device, circular flow modifier, circulation loop and controller.Controller is used for the condition of the described motor of preheating when determining according to the temperature execution engine warming up of described cooling liquid, by control circle flow modifier, warm-up the engine and circulating cooling liquid not, and, during engine warming up, when the request of receiving from heat-exchange device request flow, in scheduled time slot, controller increases to the request flow with circular flow.Just, after the request of receiving, cooling liquid begins to flow with the circular flow that is lower than the request flow.Therefore, be positioned at the cooling liquid that the not launched machine preheating of external engine is heated, slow cooling part by motor, and after being heated, arrive cooling liquid temperature-sensitive sensor part.Different with it is, according to one type of prior art syringe, its control circle flow makes it reach the request flow immediately, and the cooling liquid ether that is positioned at external engine fully makes speed that cooling liquid the heats cooling part by motor soon and not.In view of the above, compare, adopt structure of the present invention with prior-art devices, begin the coolant temperature of being heated at engine interior from engine warming up, and, being positioned at the outer and coolant temperature that after by engine cooling portion, heated of motor at first, the difference of the two is less.In addition, less at the fluctuating temperature that cooling liquid temperature-sensitive sensor part place detects according to structure of the present invention, the control of engine warming up running is stable, and this can not influence motor.
According to a further aspect in the invention, the controller step-by-step system increases circular flow.According to another aspect of the invention, controller is proportional to lapse of time increases circular flow.According to another aspect of the invention, controller increases circular flow according to the first-order lag filbter characteristic.
According to the present invention, the controller step-by-step system increases circular flow.According to the present invention, controller is proportional to lapse of time increases circular flow.In addition, according to the present invention, controller increases circular flow according to the first-order lag filbter characteristic.According to said structure of the present invention, after the request of receiving, make cooling liquid begin to flow with the circular flow that is lower than the request flow from heat-exchange device request flow, and, in scheduled time slot, make the circular flow of cooling liquid increase to the request flow.Therefore,, be positioned at outer, the preheating of the launched machine cooling liquid of heating not of motor according to said structure of the present invention, the cooling part by motor lentamente, and after being heated, arrive cooling liquid temperature-sensitive sensor part.Compare with prior-art devices, the coolant temperature of being heated in the motor, and, being positioned at the outer and coolant temperature that after by engine cooling portion, heated of motor at first, the difference of the two is less.In addition, according to structure of the present invention, the fluctuating temperature that cooling liquid temperature-sensitive sensor part place detects is less, and the control of engine warming up running is stable, and this can not influence motor.
According to another aspect of the invention, controller is regulated circular flow with feedback control, with the fluctuation of restriction coolant temperature.
According to the present invention, controller is regulated circular flow by means of feedback control, with the fluctuation of restriction coolant temperature.The fluctuation of coolant temperature can be limited in reliably like this in the scope that does not influence engine warming up control, and, can be by the circular flow that in the scope that does not influence engine warming up control, increases sharply, response is from the request of heat-exchange device.
According to another aspect of the invention, after circular flow being increased to the request flow, coolant temperature is carried out filtering obtain cooling liquid correction temperature, controller is identified for the condition of warm-up the engine according to cooling liquid correction temperature.
According to the present invention, engine-cooling system comprises: engine cooling portion, cooling liquid temperature-sensitive sensor part, heat-exchange device, circular flow modifier, circulation loop and controller.When according to the coolant temperature warm-up the engine, controller is identified for the condition of warm-up the engine, by control circle flow modifier, warm-up the engine and circulating cooling liquid not, and, during engine warming up, when the request of receiving from heat-exchange device request flow, controller increases to circular flow the request flow immediately, afterwards, be identified for the condition of preheating according to cooling liquid correction temperature, cooling liquid correction temperature obtains by coolant temperature is carried out filtering, than the actual temperature that detects of cooling liquid, cooling liquid correction temperature gradually changes.Just, after beginning to cool down the liquid circulation, because be identified for the condition that engine warming up turns round, than the actual temperature that detects of cooling liquid according to cooling liquid correction temperature, cooling liquid correction temperature is further changed into and is gradually changed, and therefore can not influence the control of preheating.In addition, by circular flow is increased to the request flow immediately, engine-cooling system responds to the request from heat-exchange device.
According to a further aspect in the invention, a kind of engine-cooling system comprises: cooling part, and it is formed at motor, is used to make cooling liquid to pass through wherein to flow; Cooling liquid temperature-sensitive sensor part, it detects coolant temperature; Heat-exchange device, it utilizes the heat of cooling liquid; The circular flow modifier, it is used to change the circular flow of cooling liquid; Circulation loop via cooling part, cooling liquid temperature-sensitive sensor part, heat-exchange device and circular flow modifier, makes cooling liquid flow by circulation loop; And, controller, when receive from heat-exchange device about the request flow request the time, by reference coolant temperature control circle flow modifier, controller is regulated the circular flow of cooling liquid.When carrying out the preheating of motor according to coolant temperature, controller is identified for the condition of warm-up the engine, control circle flow modifier, be used for warm-up the engine and circulating cooling liquid not, and, during the warming up of motor, under the situation of having asked flow, controller increases to circular flow the request flow immediately, afterwards, be identified for the condition of engine warming up according to cooling liquid correction temperature, cooling liquid correction temperature obtains by coolant temperature is carried out filtering, and cooling liquid correction temperature gradually changes.
According to another aspect of the invention, the circular flow modifier is corresponding to the electric water pump that changes flow, by engine-driven mechanical water pump or flow control valve.
According to the present invention, can change flow electric water pump, can use as the circular flow modifier by engine-driven mechanical water pump or flow control valve.According to the present invention, the structure of engine-cooling system is not limited to these structures and the variation thereof of water pump, but can use in wideer scope.
According to the present invention, engine-cooling system comprises: heat-radiation loop, and it is self circular loop branch between cooling liquid temperature-sensitive sensor part and heat-exchange device, and adds circulation loop at the inlet of electric water pump; Radiator, it is arranged in the heat-radiation loop; And, temperature-conserving valve.The circular flow modifier is corresponding to the electric water pump that changes flow, and cooling liquid temperature-sensitive sensor part is positioned at the outlet port of engine cooling portion, and the outlet of electric water pump is positioned at the ingress of cooling part.
According to the present invention, the electric water pump that changes flow is used as the circular flow modifier.In addition, cooling system comprises heat-radiation loop, heat-radiation loop self circular loop branch, and after by radiator and temperature-conserving valve, add circulation loop again.According to coolant temperature, temperature-conserving valve is regulated its aperture automatically, and along with coolant temperature raises, the flow of cooling liquid increases in the heat-radiation loop, to increase the heat that distributes via radiator.In view of the above, the heat of cooling liquid is preferentially distributed at the heat-exchange device place, and the too much heat that does not distribute at the heat-exchange device place then distribute at the radiator place.The structure of cooling system can change with following structure according to the present invention: a structure with the heat-exchange device heat radiation; Preferentially in the heat radiation of heat-exchange device place and the structure that the too much heat that do not distribute at the heat-exchange device place is distributed at the radiator place; And, the structure of all dispelling the heat at the two place of heat-exchange device and radiator.
According to a further aspect in the invention, motor is installed on Motor Vehicle, and heat-exchange device is corresponding to heater or windshield heater.
According to the present invention, motor is installed on Motor Vehicle, and, heater or windshield heater are used as heat-exchange device.Cooling system of the present invention is applicable to such cooling system, and it is configured to cool off the motor that is installed on Motor Vehicle.
Description of drawings
According to the detailed description of hereinafter carrying out in conjunction with the accompanying drawings, address supplementary features before of the present invention and characteristics will be more clear, wherein:
Fig. 1 is the schematic representation according to the engine-cooling system of first embodiment of the invention;
Fig. 2 is an illustrative graph, illustrates according to first embodiment, is increased by first controlling method of liquid circulation flow in scheduled time slot by engine control ECU;
Fig. 3 is used to cool off the flow process of control when illustrating according to first embodiment by engine control ECU warm-up the engine;
Fig. 4 is an illustrative graph, and the effect when increasing the liquid circulation flow as shown in Figure 2 in scheduled time slot by engine control ECU is shown;
Fig. 5 is an illustrative graph, illustrates according to first embodiment, is proportional to second controlling method that lapse of time increases the liquid circulation flow by engine control ECU;
Fig. 6 is an illustrative graph, illustrates according to first embodiment, is increased the 3rd controlling method of liquid circulation flow according to the first-order lag filbter characteristic by engine control ECU;
Fig. 7 is used to cool off the flow process of control when illustrating according to second embodiment by engine control ECU warm-up the engine; And
Fig. 8 is an illustrative graph, and the effect when coolant temperature being used Shelving obtain revising water temperature is shown.
Embodiment
Below, with reference to accompanying drawing, the embodiment of engine-cooling system is described.
Referring to figs. 1 through Fig. 6, first embodiment of engine-cooling system is described.As shown in Figure 1, cooling system 1 is configured to, and the motor that is installed on Motor Vehicle is cooled off, and utilize the heat of cooling liquid that the Motor Vehicle crew department is heated.Cooling system 1 comprises water jacket 2, cooling liquid temperature-sensitive sensor part 3, heater 4, electric water pump 5, circulating water loop (circulation loop) 6, engine control ECU 7, water of radiation loop (heat-radiation loop) 81, radiator 82 and temperature-conserving valve 83.
Water jacket 2 is as the cooling part of motor.Water jacket 2 is formed on around the cylinder, and cooling liquid then flows in water jacket 2.Cooling liquid temperature-sensitive sensor part 3 is positioned at outlet 21 places of water jacket 2, and it detects coolant temperature T.Heater 4 is as heat-exchange device.Heater 4 comprises: absorb the heating core (just) 41 of cooling liquid heat as heat exchange body, and, the control unit 42 of control heating core 41 operations.Electric water pump 5 is as the circular flow modifier, and it changes circular flow Qc by control input electric power.Wing pump or centrifugal pump etc. can be used as electric water pump 5.The outlet 51 of electric water pump 5 is connected with the inlet 22 of water jacket 2.
Circulating water loop 6 is configured to, and allows heating core 41 and the electric water pump 5 of liquid circulation by water jacket 2, cooling liquid temperature-sensitive sensor part 3, heater 4.Coolant flow direction is indicated with arrow F in Fig. 1.Circulating water loop 6 comprises: first loop 61, and it connects the inlet 411 of cooling liquid temperature-sensitive sensor part 3 and heating core 41; And, second loop 62, it connects the outlet 412 of heating core 41 and the portion 63 of confluxing.Heat-radiation loop 81 adds circulating water loop 6 at the portion of confluxing 63 places.The portion 63 of confluxing is connected with the inlet 52 of electric water pump 5.
First loop, 61 branches of heat-radiation loop 81 self circular loops 6, and be connected with temperature-conserving valve 83 via radiator 82.With respect to electric water pump 5, the heating core 41 of heater 4 is arranged with radiator 82 (walking abreast) parallel to each other.Radiator 82 comprises home loop, thereby cooling liquid is by the home loop distribute heat.Temperature-conserving valve 83 is configured to, and regulates its opening degree automatically according to coolant temperature.Outlet 831 openings of temperature-conserving valve 83 are towards the portion of confluxing 63, and the opening degree of outlet 831 is variable.The responsive to temperature portion of temperature-conserving valve 83 is positioned at the portion of confluxing 63.Temperature-conserving valve 83 is configured to, and during engine warming up, when hanging down water temperature temperature-conserving valve 83 is closed.Temperature-conserving valve 83 is configured to, and opens automatically when raising in response to the engine running water temperature, thereby allows cooling liquid flow to heat-radiation loop 81.In view of the above, by radiator 82 distribute heats.In addition, liquid tank 84 is set, liquid tank 84 is connected with radiator 82 with heat-radiation loop 81, is used to absorb because of the cooling liquid liquid level change due to the temperature variation, and is used to compensate the deficiency of cooling liquid.
Engine control ECU 7 is the ECU (Electrical Control Unit) that are used to control engine running, and as the controller that is used to adjust/regulate liquid circulation flow Qc.Engine control ECU 7 is configured to, receives from cooling liquid temperature-sensitive sensor part 3 information about coolant temperature T, and, receive control unit 42 from heater 4 be used to the to heat information of the required request flow of motor vehicle cabin Qr.In addition, engine control ECU 7 controls are supplied to the input electric power of electric water pump 5, to regulate circular flow Qc.According to temperature T, based on the engine running condition, the running of engine control ECU 7 control motors.Controlled quentity controlled variable by engine control ECU 7 controls comprises engine speed, fuel injection quantity and ignition timing.
In addition, engine control ECU 7 is identified for the condition of warm-up the engine according to temperature T, and, by control electric water pump 5, warm-up the engine and circulating cooling liquid not.Just, when definite circular flow Qc equals zero (Qc=0), engine control ECU 7 warm-up the engines.Above-mentioned warming up is defined as no liquid circulation preheating.On the other hand, when temperature T reached predetermined value (grade), engine control ECU 7 passed through control electric water pump 5 circulating cooling liquids, thereby continues warming up, and comprises the whole system preheating of circulation loop 6.Above-mentioned warming up has been defined as the liquid circulation preheating.Between circular flow Qc equals zero the no liquid circulation warming up period of (Qc=0), when receiving from heater 4 control units 42 about the request of request flow Qr, engine control ECU 7 control electric water pumps 5 increase to circular flow Qc request flow Qr in scheduled time slot.Engine control ECU 7 comprises timer, is used for timing from having asked request moment t1 in flow Qr place to begin and elapsed time tx.
With reference to Fig. 2, transverse axis express time t, the longitudinal axis is represented flow Q, dotted line represents to ask flow Qr, and solid line is represented circular flow Qc.Situation among Fig. 2 shown in the curve is, between circular flow Qc equals zero the no liquid circulation warming up period of (Qc=0), request constantly t1 asked flow Qr.As shown in Figure 2, at request moment t1, engine control ECU7 does not increase to circular flow Qc request flow Qr immediately, but circular flow Qc is increased to less than the reduction flow Qd that asks flow Qr.Afterwards, the moment t2 in that lapse of time tx reaches scheduled time slot tr increases to request flow Qr with circular flow Qc from reduction flow Qd.Just, when circular flow Qc being increased to request flow Qr, engine control ECU 7 increases circular flow Qc with the stepping of transition processing mode.Qr is equal to or less than under the situation of predetermined amount of flow Q0 at the request flow, and keeping circular flow Qc is zero (Qc=0), continues the preheating of motor.
Reduction flow Qd, scheduled time slot tr and predetermined amount of flow Q0 can be defined as fixed amount, yet preferably, these parameters can be defined as and can change according to temperature T and the request flow Qr in this moment.In order to reduce the fluctuation of temperature T, can reduce to reduce flow Qd, prolong scheduled time slot tr, and, predetermined amount of flow Q0 can be defined as bigger.Comparatively speaking, above-mentioned setting does not have to satisfy the request from heater 4, and the delay of heater 4 is started.Therefore, structure according to present embodiment, determine suitable reduction flow Qd, scheduled time slot tr and predetermined amount of flow Q0 (can start heater 4 rapidly, the fluctuation of limit temperature T simultaneously makes it be equal to or less than predetermined value), so that do not influence the control of engine warming up.Experimentize by means of changing different condition, can obtain these appropriate values, and can be further used as chart and be stored among the engine control ECU 7.
Below, with reference to Fig. 3, the running according to first embodiment's engine-cooling system 1 is described.As shown in Figure 3, when step S1 begins the preheating of motor, judge that at step S2 control ECU 7 is the no liquid circulation preheatings of operation, or moves the liquid circulation preheating is arranged.When operation has the liquid circulation preheating, handle proceeding to step S8.When the no liquid circulation preheating of operation, judge at step S3 whether heater 4 has asked flow Qr.When not asking request flow Qr, handle proceeding to step S7.When having asked flow Qr first, start timer, and, after starting timing process lapse of time tx, handle proceeding to step S4.When request flow Qr continues, handle also proceeding to step S4.
Then, judge at step S4 whether request flow Qr surpasses predetermined amount of flow Q0.When request flow Qr does not surpass predetermined amount of flow Q0, handle proceeding to step S7.When request flow Qr surpasses predetermined amount of flow Q0, judge at step S5 whether lapse of time tx of timer institute timing is equal to or greater than scheduled time slot tr.Be equal to or greater than at lapse of time tx under the situation of scheduled time slot tr, handle to proceed to step S8, and as lapse of time tx during less than scheduled time slot tr, processing proceeding to step S6.In view of the above, handle the final step S6 that arrives to one of step S8.
Receiving between no liquid circulation warming up period above under the request flow Qr and the condition of lapse of time tx of predetermined amount of flow Q0, handling arriving step S6 less than scheduled time slot tr.In the case, engine control ECU 7 control electric water pumps 5 change to reduction flow Qd with circular flow Qc.Be zero or ask flow Qr to be equal to or less than under the condition of predetermined amount of flow Q0 in no liquid circulation preheating of operation and request flow Qr, handle arriving step S7.In the case, engine control ECU 7 control circle flow Qc are zero (Qc=0), and, continue the running of no liquid circulation preheating.Have in running under the condition of liquid circulation preheating, perhaps, Qr is equal to or greater than under the condition of scheduled time slot tr above predetermined amount of flow Q0 and lapse of time tx at the request flow, handles arriving step S8.Request flow Qr surpasses the condition that predetermined amount of flow Q0 and lapse of time tx are equal to or greater than scheduled time slot tr, corresponding to the situation after finishing with reduction flow Qd transition processing in the scheduled time slot tr.In the case, engine control ECU 7 carries out the control that is used to have the normal preheating of liquid circulation.In other words, engine control ECU 7 control circle flow Qc are with the variation among the request flow Qr that makes an immediate response.
To one of step S8, finish the one-period of control at step S6, then, handle being back to step S2, the variety of processes that repeats to control.
Below, with reference to Fig. 4, advantage and effect according to first embodiment's engine-cooling system 1 are described.The effect that increases circular flow Qc based on Fig. 2 in scheduled time slot is shown among Fig. 4.Transverse axis express time t among Fig. 4, and the longitudinal axis is represented the coolant temperature T that detected by cooling liquid temperature-sensitive sensor part 3 among Fig. 4.Fig. 4 illustrates a kind of example, wherein begin at preheating t0 zero hour engine warming up, and t1 receives the request of request flow Qr in the request moment.What the solid line among Fig. 4 (promptly hereinafter alleged line 1) illustrated is, when based on Fig. 2, and from the state of no liquid circulation preheating, when making circular flow Qc step-by-step system increase to request flow Qr via reduction flow Qd, the variation of coolant temperature T.What the dotted line among Fig. 4 (promptly hereinafter alleged line 2) illustrated is, under the state of no liquid circulation preheating, art methods is in request when t1 increases to circular flow Qc request flow Qr immediately constantly, the variation of coolant temperature T.What the double dot dash line among Fig. 4 (promptly hereinafter alleged line 3) illustrated is, when the preheating t0 zero hour begins to use a kind of prior art controlling method, and the variation of coolant temperature.
Following elder generation compares line 1 and line 2 and line 3, and the effect of not having the liquid circulation preheating during circulating cooling liquid not is described.Compare with the prior art controlling method (wherein not carrying out no liquid circulation preheating) of the circulating cooling liquid of representing with line 3, line 1 and the line 2 of carrying out no liquid circulation preheating illustrate: after the preheating t0 zero hour, temperature T sharply raises immediately.This shows the rapid preheating of the engine interior that comprises piston.
Secondly, below alternative line 1 and line 2, the effect of step-by-step system increase circular flow Qc be described.At request moment t1, engine control ECU 7 increases to circular flow Qc request flow Qr immediately.Therefore, between cooling liquid (beginning promptly engine water jacket 2, to heat) flow periods from engine running, temperature T is increased to the P1 among Fig. 4, yet, after cooling liquid in external engine second loop 62 flows through cooling liquid temperature-sensitive sensor part 3, temperature T is reduced to the P2 among Fig. 4, and this causes the precipitous fluctuation of temperature.Therefore, for engine control ECU 7, be difficult to be identified for according to temperature T the stable condition of preheating, also make pre-heat control difficulty, this can influence motor.
On the other hand, shown in Fig. 4 center line 1, after request moment t1, engine control ECU 7 increases to circular flow Qc reduction flow Qd immediately.As a result, when engine running begins, be positioned at the cooling liquid in external engine second loop 62,, arrive cooling liquid temperature-sensitive sensor part 3 after slowly being heated by water jacket 2.In view of the above, as shown in Figure 4, compare with online 2 fluctuation, the temperature T fluctuation of line 1 is less, can be identified for the stable condition of preheating, and this can not influence motor.
According to first embodiment, the reduction flow Qr that is used in scheduled time slot tr increasing with step-by-step system circular flow Qc comprises a stride.Yet circular flow Qc also can progressively increase with a plurality of strides.In addition, about in scheduled time slot tr, being used to increase the method for circular flow Qc, also can use additive method.Fig. 5 and Fig. 6 are illustrated in the optional method example that increases circular flow Qc in the scheduled time slot tr.
As shown in Figure 5, engine control ECU 7 can make circular flow Qc be proportional to lapse of time tx increases.As shown in Figure 5, engine control ECU 7 control electric water pumps 5, thereby, after request moment t1, increase circular flow Qc with constant-slope immediately, make its moment t3 after passage scheduled time slot tr reach request flow Qr.
In addition, Fig. 6 illustrates another controlling method, increases circular flow Qc by engine control ECU 7 according to the first-order lag filbter characteristic.As shown in Figure 6, engine control ECU 7 control electric water pumps 5, thus after request moment t1, beginning immediately increases circular flow Qc according to the first-order lag filbter characteristic with certain increasing amount, and reduce increasing amount gradually with approaching request flow Qr.Using under the situation of first-order lag filbter characteristic as shown in Figure 6, circular flow Qc and request flow Qr can not be equal to each other.Yet, circular flow Qc can be presented identical value needed time substantially with request flow Qr, in other words, circular flow Qc reaches the interior used time of value of certain limit that acquisition is used for the stable condition of preheating, is defined as the scheduled time (scheduled time slot).
Also can use the different control methods except that above-mentioned example, in scheduled time slot, make circular flow Qc reach request flow Qr.
Below, with reference to Fig. 7, second embodiment of engine-cooling system is described.According to second embodiment, feedback control is applied to control the circular flow Qc of cooling liquid.Structure according to second embodiment's cooling system is identical with the structure according to first embodiment's cooling system 1 shown in Figure 1.Second embodiment and first embodiment's the different controlling methods that are engine control ECU 7, just software difference.Below, no longer repeat and the common structure of first embodiment, only second embodiment is described with the different of first embodiment.
As shown in Figure 7, begin preheating (warm-operation begins) at step S11, at step S12, engine control ECU 7 relatively is somebody's turn to do the circular flow Qc constantly and the request flow Qr of heater 4.When request flow Qr is equal to or less than circular flow Qc, because satisfied the request of heater 4, handle proceeding to S17, thereby control electric water pump 5 is kept circular flow Qc.When request flow Qr surpasses circular flow Qc, handle proceeding to step S13, the fluctuation Δ T and the high limit of tolerance value Δ TU of the temperature T that detected by cooling liquid temperature-sensitive sensor part 3 compared.When fluctuation Δ T is excessive when surpassing high limit of tolerance value Δ TU, handle proceeding to step S15, thereby control electric water pump 5 reduces circular flow Qc.In view of the above, the fluctuation Δ T of limit temperature T.
At step S13, when fluctuation Δ T is equal to or less than high limit of tolerance value Δ TU, handle proceeding to step S14, the fluctuation Δ T of C.T T with allow lower limit Δ TL, allow that lower limit Δ TL is less than high limit of tolerance value Δ TU (Δ TL＜Δ TU just).Too small and when allowing lower limit Δ TL as fluctuation Δ T, handle proceeding to step S16, thereby control electric water pump 5 increases circular flow Qc.In view of the above, cooling system 1 responds the request from heater 4 apace.In addition,, handle and proceed to step S17 when fluctuation Δ T is equal to or higher than when allowing lower limit Δ TL, because the fluctuation Δ T of holding temperature T suitably, thereby control electric water pump 5 is kept circular flow Qc.Because to the one-period that one of step S17 has finished control, handle being back to step S12, the variety of processes that repeats to control by step S15.
Control the used flow process of cooling liquid according to second embodiment, control the fluctuation Δ T of coolant temperature T reliably, make it drop on high limit of tolerance value Δ TU and allow that this can not influence the control of engine warming up in the scope between the lower limit Δ TL.In addition, according to second embodiment, by promptly increase circular flow Qc in allowed band, cooling system 1 responds the request from heater 4 rapidly.
Below, with reference to Fig. 8, the 3rd embodiment of engine-cooling system is described.According to the 3rd embodiment, replace the circular flow Qc that adjusts cooling liquid, revise temperature T to be detected.Structure according to the 3rd embodiment's cooling system is identical with the structure according to first embodiment's cooling system 1 shown in Figure 1.The 3rd embodiment is the controlling method of engine control ECU 7, just software difference than first and second embodiments' difference.Below, no longer repeat and the common structure of first embodiment, only the 3rd embodiment is described with the different of first and second embodiments.According to the 3rd embodiment, between no liquid circulation warming up period, when receiving from heater 4 about the request of request flow Qr, engine control ECU 7 control electric water pumps 5 increase to request flow Qr immediately with circular flow Qc.Afterwards, the coolant temperature T that is detected by cooling liquid temperature-sensitive sensor part 3 is carried out filtering,, be identified for the condition of engine warming up (warm-operation) according to the cooling liquid correction temperature T A that gradually changes that obtains by filtering.
According to the 3rd embodiment, coolant temperature T is carried out the effect that filtering obtains cooling liquid correction temperature T A be shown in Fig. 8.Transverse axis is represented time t among Fig. 8.Fig. 8 middle and upper part curve illustrates the variation among the circular flow Qc, and Fig. 8 middle and lower part curve illustrates the variation among coolant temperature T and the cooling liquid correction temperature T a.At request moment t1, the request of receiving request flow Qr, and at moment t4, request flow Qr gets back to zero (0).As shown in the curve of top, engine control ECU 7 control electric water pumps 5 in response to the variation among the request flow Qr, make circular flow Qc consistent with request flow Qr immediately.Further, as shown in the curve of Fig. 8 middle and lower part, by carrying out filtering to detecting temperature T (representing with solid line), engine control ECU 7 obtains cooling liquid correction temperature T A (dotting).After request moment t1, according to the cooling liquid correction temperature T A that gradually changes, engine control ECU7 is identified for the condition of preheating (warm-operation).
Therefore, according to the 3rd embodiment,,, can not influence the control of preheating because be identified for the condition of preheating according to the correction temperature that gradually changes than the actual temperature T that detects.In addition, at request moment t1, by immediately circular flow Qc being increased to request flow Qr, cooling system 1 responds the request from heater 4 rapidly.
Each embodiment of cooling system 1 has used electric water pump 5.Replace electric water pump 5, also can the application machine water pump or flow control valve etc.For example, can use automatically controlled needle-valve as the flow control valve that is subjected to engine control ECU 7 controls.According to said structure,, just can in the mechanical water pump delivery scope that limits based on engine speed, as expectation, regulate circular flow Qc by the aperture of control needle-valve.
In addition, the variation example as these embodiments can be provided with the bypass water loop, and it allows cooling liquid to get back to the portion of confluxing 63 from the outlet 21 of water jacket 2 immediately, to improve engine warming up efficient.Each embodiment's structure also is applicable to other structures.
According to the foregoing description, heater 4 is set as heat-exchange device.Yet, replace heat-exchange device, also can use defrosting plant as heat-exchange device, and can use windshield heater in Fig. 1 as windshield heater 4.
Claims (10)
1. an engine-cooling system (1) comprising:
Be formed at the cooling part (2) of described motor, make cooling liquid pass through wherein to flow;
Cooling liquid temperature-sensitive sensor part (3), it detects the temperature of described cooling liquid;
Heat-exchange device (4), it utilizes the heat of described cooling liquid;
Circular flow modifier (5), it is used to change the circular flow of described cooling liquid;
Circulation loop (6), the described cooling part of flowing through, described cooling liquid temperature-sensitive sensor part (3), described heat-exchange device (4) and described circular flow modifier (5) make described cooling liquid flow by described circulation loop (6); And
Controller (7), when receive from described heat-exchange device (4) about the request flow request the time, by temperature with reference to described cooling liquid, control described circular flow modifier (5), described controller (7) is regulated the circular flow of described cooling liquid; Wherein
Described controller (7) is used for the condition of the described motor of preheating when determining according to the temperature execution engine warming up of described cooling liquid, control described circular flow modifier (5), thereby the described motor of preheating and the described cooling liquid that do not circulate, and, between described engine warming up on-stream period, under the situation of having asked the described request flow, described controller (7) increases to the described request flow with described circular flow in scheduled time slot.
2. engine-cooling system according to claim 1, wherein: described controller (7) step-by-step system increases described circular flow.
3. engine-cooling system according to claim 1, wherein: described controller (7) is directly proportional with lapse of time increases described circular flow.
4. engine-cooling system according to claim 1, wherein: described controller (7) increases described circular flow according to the first-order lag filbter characteristic.
5. engine-cooling system according to claim 1, wherein: described controller (7) is regulated described circular flow with feedback control, to limit the fluctuation of described coolant temperature.
6. engine-cooling system according to claim 1, wherein, after described circular flow is increased to the described request flow, described coolant temperature is carried out filtering obtain cooling liquid correction temperature, described controller (7) is identified for the condition of the described motor of preheating according to described cooling liquid correction temperature.
7. engine-cooling system comprises:
Be formed at the cooling part (2) of described motor, make cooling liquid pass through wherein to flow;
Cooling liquid temperature-sensitive sensor part (3), it detects the temperature of described cooling liquid;
Heat-exchange device (4), it utilizes the heat of described cooling liquid;
Circular flow modifier (5), it is used to change the circular flow of described cooling liquid;
Circulation loop (6), the described cooling part (2) of flowing through, described cooling liquid temperature-sensitive sensor part (3), described heat-exchange device (4) and described circular flow modifier (5) make described cooling liquid flow by described circulation loop (6); And
Controller (7), when receive from described heat-exchange device (4) about the request flow request the time, by temperature with reference to described cooling liquid, control described circular flow modifier (5), described controller (7) is regulated the circular flow of described cooling liquid; Wherein
Described controller (7) is used for the condition of the described motor of preheating when determining according to the temperature execution engine warming up of described cooling liquid, control described circular flow modifier (5), be used for the described motor of preheating and the described cooling liquid that do not circulate, and, between described engine warming up on-stream period, under the situation of having asked the described request flow, described controller (7) increases to the described request flow with described circular flow immediately, afterwards, described controller (7) is identified for the condition of described engine warming up according to the correction temperature of described cooling liquid, described cooling liquid correction temperature obtains by the temperature of described cooling liquid is carried out filtering, and described cooling liquid correction temperature gradually changes.
8. according to claim 1 described engine-cooling system of each claim to the claim 7, wherein: described circular flow modifier (5) is corresponding to the electric water pump that changes flow or corresponding to by described engine-driven mechanical water pump or corresponding to flow control valve.
9. according to claim 1 described engine-cooling system of each claim to the claim 8, further comprise:
Heat-radiation loop (81), it from described circulation loop (6) branch, and adds described circulation loop (6) at the inlet of described circular flow modifier (5) between described cooling liquid temperature-sensitive sensor part (3) and described heat-exchange device (4);
Radiator (82), it is arranged in the described heat-radiation loop (81); And
Temperature-conserving valve (83); Wherein
Described circular flow modifier (5) is corresponding to the electric water pump that changes flow, described cooling liquid temperature-sensitive sensor part (3) is positioned at the outlet port of the described cooling part (2) of described motor, and the outlet of described electric water pump (5) is positioned at the ingress of described cooling part (2).
10. according to claim 1 described engine-cooling system of each claim to the claim 9, wherein: described motor is installed on Motor Vehicle, and described heat-exchange device (4) is corresponding to heater or windshield heater.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-266408 | 2009-11-24 | ||
| JP2009266408A JP4860746B2 (en) | 2009-11-24 | 2009-11-24 | Engine cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102072007A true CN102072007A (en) | 2011-05-25 |
Family
ID=43736042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010566219XA Pending CN102072007A (en) | 2009-11-24 | 2010-11-24 | Cooling system for engine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20110120394A1 (en) |
| EP (1) | EP2333268B1 (en) |
| JP (1) | JP4860746B2 (en) |
| CN (1) | CN102072007A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306800A (en) * | 2012-03-09 | 2013-09-18 | 铃木株式会社 | Cooling apparatus of internal combustion engine for vehicle |
| CN103608557A (en) * | 2011-07-04 | 2014-02-26 | 莱顿汽车部件（苏州）有限公司 | System and method for pumping coolant through internal combustion engine for vehicle |
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| CN106014589A (en) * | 2015-03-26 | 2016-10-12 | 通用汽车环球科技运作有限责任公司 | Engine off cooling strategy |
| CN106089394A (en) * | 2015-04-28 | 2016-11-09 | 丰田自动车株式会社 | The control device of internal combustion engine |
| CN106150824A (en) * | 2015-03-30 | 2016-11-23 | 长城汽车股份有限公司 | The warm-up control method of electromotor and device |
| CN107271163A (en) * | 2017-06-16 | 2017-10-20 | 英特尔产品（成都）有限公司 | Local diagnosis and checking system and method for cooler |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0814043A (en) * | 1994-06-30 | 1996-01-16 | Isuzu Motors Ltd | Water pump control device for internal combustion engine |
| US5619957A (en) * | 1995-03-08 | 1997-04-15 | Volkswagen Ag | Method for controlling a cooling circuit for an internal-combustion engine |
| US6739290B2 (en) * | 2001-03-06 | 2004-05-25 | Calsonic Kansei Corporation | Cooling system for water-cooled internal combustion engine and control method applicable to cooling system therefor |
| US6745726B2 (en) * | 2002-07-29 | 2004-06-08 | Visteon Global Technologies, Inc. | Engine thermal management for internal combustion engine |
| JP2004360509A (en) * | 2003-06-03 | 2004-12-24 | Nissan Motor Co Ltd | Cooling device for internal combustion engine |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58124017A (en) * | 1982-01-19 | 1983-07-23 | Nippon Denso Co Ltd | Cooling system controller of engine |
| DE3810174C2 (en) * | 1988-03-25 | 1996-09-19 | Hella Kg Hueck & Co | Device for regulating the coolant temperature of an internal combustion engine, in particular in motor vehicles |
| DE4109498B4 (en) * | 1991-03-22 | 2006-09-14 | Robert Bosch Gmbh | Device and method for controlling the temperature of an internal combustion engine |
| JP2000303841A (en) * | 1999-04-20 | 2000-10-31 | Honda Motor Co Ltd | Engine cooling control device |
| DE10154091A1 (en) * | 2001-11-02 | 2003-05-15 | Bayerische Motoren Werke Ag | Method and device for controlling a cooling system of an internal combustion engine |
| JP3932277B2 (en) * | 2002-10-18 | 2007-06-20 | 日本サーモスタット株式会社 | Control method of electronic control thermostat |
| JP2004316472A (en) * | 2003-04-14 | 2004-11-11 | Nissan Motor Co Ltd | Cooling device for internal combustion engine |
| DE10332947A1 (en) * | 2003-07-19 | 2005-02-03 | Daimlerchrysler Ag | Internal combustion engine for a motor vehicle |
| JP4529709B2 (en) * | 2005-02-01 | 2010-08-25 | マツダ株式会社 | Engine cooling system |
| JP2007016718A (en) * | 2005-07-08 | 2007-01-25 | Toyota Motor Corp | Engine cooling system |
| JP2008303775A (en) | 2007-06-07 | 2008-12-18 | Nippon Soken Inc | Cooling device for internal combustion engine |
-
2009
- 2009-11-24 JP JP2009266408A patent/JP4860746B2/en not_active Expired - Fee Related
-
2010
- 2010-11-19 EP EP10191902.5A patent/EP2333268B1/en not_active Not-in-force
- 2010-11-23 US US12/952,827 patent/US20110120394A1/en not_active Abandoned
- 2010-11-24 CN CN201010566219XA patent/CN102072007A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0814043A (en) * | 1994-06-30 | 1996-01-16 | Isuzu Motors Ltd | Water pump control device for internal combustion engine |
| US5619957A (en) * | 1995-03-08 | 1997-04-15 | Volkswagen Ag | Method for controlling a cooling circuit for an internal-combustion engine |
| US6739290B2 (en) * | 2001-03-06 | 2004-05-25 | Calsonic Kansei Corporation | Cooling system for water-cooled internal combustion engine and control method applicable to cooling system therefor |
| US6745726B2 (en) * | 2002-07-29 | 2004-06-08 | Visteon Global Technologies, Inc. | Engine thermal management for internal combustion engine |
| JP2004360509A (en) * | 2003-06-03 | 2004-12-24 | Nissan Motor Co Ltd | Cooling device for internal combustion engine |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103608557A (en) * | 2011-07-04 | 2014-02-26 | 莱顿汽车部件（苏州）有限公司 | System and method for pumping coolant through internal combustion engine for vehicle |
| CN103608557B (en) * | 2011-07-04 | 2016-08-17 | 莱顿汽车部件（苏州）有限公司 | For pumping coolant through the system and method for the explosive motor of vehicle |
| CN103306800A (en) * | 2012-03-09 | 2013-09-18 | 铃木株式会社 | Cooling apparatus of internal combustion engine for vehicle |
| CN105386847A (en) * | 2014-08-22 | 2016-03-09 | 通用汽车环球科技运作有限责任公司 | Flexible engine metal warming system and method for an internal combustion engine |
| CN106014589A (en) * | 2015-03-26 | 2016-10-12 | 通用汽车环球科技运作有限责任公司 | Engine off cooling strategy |
| CN106014589B (en) * | 2015-03-26 | 2018-10-19 | 通用汽车环球科技运作有限责任公司 | Engine coolant control system and the method for controlling engine coolant using it |
| CN106150824A (en) * | 2015-03-30 | 2016-11-23 | 长城汽车股份有限公司 | The warm-up control method of electromotor and device |
| CN106089394A (en) * | 2015-04-28 | 2016-11-09 | 丰田自动车株式会社 | The control device of internal combustion engine |
| CN106089394B (en) * | 2015-04-28 | 2018-10-19 | 丰田自动车株式会社 | The control device of internal combustion engine |
| CN107271163A (en) * | 2017-06-16 | 2017-10-20 | 英特尔产品（成都）有限公司 | Local diagnosis and checking system and method for cooler |
| CN113775405A (en) * | 2021-11-11 | 2021-12-10 | 潍坊力创电子科技有限公司 | Engine cooling system capable of adjusting power consumption of water pump and control method of engine cooling system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011111910A (en) | 2011-06-09 |
| JP4860746B2 (en) | 2012-01-25 |
| EP2333268B1 (en) | 2013-05-01 |
| US20110120394A1 (en) | 2011-05-26 |
| EP2333268A2 (en) | 2011-06-15 |
| EP2333268A3 (en) | 2012-01-04 |
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Application publication date: 20110525 |