CN104675504A - Cooling system for hybrid vehicle and adjusting method thereof - Google Patents
Cooling system for hybrid vehicle and adjusting method thereof Download PDFInfo
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- CN104675504A CN104675504A CN201410693560.XA CN201410693560A CN104675504A CN 104675504 A CN104675504 A CN 104675504A CN 201410693560 A CN201410693560 A CN 201410693560A CN 104675504 A CN104675504 A CN 104675504A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
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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
- F01P7/165—Controlling of coolant flow the coolant being liquid by thermostatic control characterised by systems with two or more loops
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K2001/003—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units
- B60K2001/006—Arrangement or mounting of electrical propulsion units with means for cooling the electrical propulsion units the electric motors
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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
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P2005/105—Using two or more 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
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
- F01P5/12—Pump-driving arrangements
- F01P2005/125—Driving auxiliary pumps electrically
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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
- F01P2025/00—Measuring
- F01P2025/08—Temperature
- F01P2025/40—Oil temperature
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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
- F01P2050/00—Applications
- F01P2050/24—Hybrid vehicles
-
- 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
- F01P2060/04—Lubricant cooler
- F01P2060/045—Lubricant cooler for transmissions
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- General Details Of Gearings (AREA)
Abstract
The present invention relates to a cooling system for a hybrid vehicle and having an oil circuit (11) and a water cooling circuit (5), wherein the oil circuit (11) is used for adjusting the heat of a transmission (10) and a motor. Surplus heat (Qe) is tranfrrred to the water cooling circuit (5) from the oil circuit (11) through a heat exchanger (14), and the waste heat of an internal combuistion engine (2) passes the water cooling circuit (5) and is adjusted by a temperature adjusting device (8), and is discharged to an environment when a main water cooling device (6) is being used. The invention further relates to a method for adjusting the cooling system. In order to solve the target conflicts between the settings of optimal temperatures of a transmission and a motor, a method for adjusting the cooling system (1) used by the hydrbid vehicle driving device is proposed. In the water cooling circuit (5), when an electric pump (17) which is adjusted by the current temperature (T) of the oil circuit (11) is being used, the cooling water, after leaving a water side (15) of the heat exchanger (14), on the one hand, is introduced to the front of temperature adjusting device (8) through a branch circuit (24) having a throttle valve at a branching point (21); and on the other hand, in the water cooling circuit (5), when a bypass branch circuit (22) is being used, the cooling water is introduced to the position behind the internal combuistion engine (2).
Description
Technical field
The present invention relates to a kind of cooling system of motor vehicle driven by mixed power, described motor vehicle driven by mixed power has at least one drive motor and at least one internal-combustion engine.The invention still further relates to a kind of for regulating the method for this cooling system.
Background technique
By EP0966627B1 there is known a kind of for internal combustion engine of motor vehicle, the control that is integrated in motor in transmission device and this motor.The document discloses a kind of drive train, wherein motor to be arranged in an integrated manner in the gear of vehicle and to be used as the actuating motor of internal-combustion engine or the generator for the power supply for onboard power system alternatively.In the cooling of this motor, guaranteed the fluid cooling of motor by the Water-cooling circulating loop being connected to internal-combustion engine.Alternatively refer to and carry out Air flow by means of the cooling fan in outer installment.
A kind of cooling system of power train of motor vehicle driven by mixed power is there is known by WO2012/092402A2.This design of Cooling System is unique closed cooling circuit, and this closed cooling circuit is used for cooling internal combustion engines.Motor-drive pump and mechanically driven pump make liquid circulation.The electric parts of hybrid drive, such as motor, inverter or coupling device can optionally load by means of valve or depart from the cooling circuit of internal-combustion engine.
DE102010004903A1 discloses a kind of cooling system, and wherein internal-combustion engine is assigned to elementary cooling circuit or main cooling circuit.Mixed power assembly, such as motor or inverter are attached troops to a unit in secondary drive device, wherein, for secondary drive device is provided with independent, irrelevant with main cooling circuit cooling circuit.
Summary of the invention
Task of the present invention is, a kind of cooling system for motor vehicle driven by mixed power is provided, this motor vehicle driven by mixed power has internal-combustion engine, speed changer and motor, wherein there is goal conflict between relevant to the running temperature of motor and speed changer, contrary efficiency characteristic, that describe subsequently.In addition, this cooling system should structure simple and can reliably run by means of little expense.In addition, task of the present invention is also, according to each driven unit-such as speed changer and/or motor or motor and internal-combustion engine-load so each driven unit described is cooled, make as far as possible for driver provide the maximal efficiency of the maximum electric power of motor and/or speed changer and and then provide maximum power/dynamic property for.
The goal conflict to be solved according to the present invention is, the running temperature of motor is lower, then it tends to have higher efficiency.On the contrary, mechanical transmission, such as fully-automatic gearbox or speed-changing gear box have so a kind of characteristic, and wherein its reduction along with running temperature has the efficiency of reduction.This is because, because higher frictional loss has appearred in oil in the transmission more sticky at a lower temperature.On the contrary, the efficiency of motor raises along with temperature and reduces.Especially because its overheated danger there will be so-called load shedding or the Power Limitation of motor at too high a temperature.But when running temperature is higher, that is concerning rarer transmission oil, mechanical transmission is potential higher efficiency because less frictional loss has.
Such as, especially for following situation: motor is integrally arranged in the transmission and jointly by means of transmission oil, be abbreviated as the so-called automatic transmission fluid liquid cooling of ATF but, then this goal conflict between different efficiency characteristics is more obvious.
The first and second cooling circuits are comprised by the cooling system that prior art is known.Motor and speed changer is at least provided with as assembly to be cooled in the first cooling circuit.In addition, be wherein provided with recycle pump, this recycle pump is by means of transmission oil, and such as ATF cools described assembly to be cooled.The form that also uses in this first cooling circuit is liquid-liquid-heat exchanger, so-called ATF cooler/radiator.ATF cooler has oily side, and this oily side is connected on the first cooling circuit.In addition, ATF cooler has water side, and this water side is arranged in the second cooling circuit, and this second cooling circuit defines the main cooling circuit of internal-combustion engine.By ATF heat exchanger, the heat of motor and/or speed changer is passed to the water-flow circuit of internal-combustion engine (or being abbreviated as VKM), these two cooling circuits are not directly connected to each other simultaneously.The pump that water side for ATF cooler has arranged motor-drive pump and has been coupled with VKM machinery.In order to regulate the average criterion temperature in the first cooling circuit, in the second cooling circuit, be provided with flexible pipe thermoregulator.About above-mentioned prior art with reference to accompanying drawing 2.
In this two circuit cools systems, concerning the first cooling circuit (comprising the cooling circuit of motor and speed changer in other words) for cooling power with the average criterion temperature regulated by means of flexible pipe thermoregulator for guiding.Therefore, this target temperature be presented as speed changer and for the best of motor running temperature between compromise.Therefore, because goal conflict described subsequently always can not reach the optimum efficiency of speed changer and motor simultaneously.Such as, in vehicle absolutely internal combustion engine operation, the temperature of speed changer is not high best, thus in mechanical transmission, occurred less desirable loss in efficiency.In the 100% traveling operation based on electric driver, concerning the power largely limiting motor the situation subscribing target temperature, because concerning this operation, the target temperature predetermined for thermoregulator is often too high, and motor reaches rapidly its maximum permission wasted power depending on this temperature levels due to this high temperature levels or is absorbed in so-called load shedding.
Another shortcoming is: according to by the known method of prior art, and the used heat of motor and speed changer is passed to the cooling water of internal-combustion engine by oil return line.Cooling water returns and flows through internal-combustion engine and may heat/cooling internal combustion engines unevenly.Because this uneven heating fully can not be detected by the temperature transducer installed within the engine, so may lead to errors the in some cases starting and/or injection strategy selected.
In addition, known cooling circuit largely depends in its heat radiation power, and whether internal-combustion engine runs or close, as this just in hybrid drive once in a while may with expectation.
According to the present invention, so solved by the method with feature described in claim 1 aforesaidly sets up for speed changer while provide enough heat radiation power at any time for cooling circuit, the task of the goal conflict between motor and the optimum temperature of internal-combustion engine: when using the motor-drive pump regulated by the Current Temperatures in oil return line, the outlet port of the cooling unit of cooling water before point of branching place is directed to thermoregulator by throttle valve on the one hand and after being directed to internal-combustion engine when using bypass branch on the other hand in water cooling loop or at internal-combustion engine after the water side leaving heat exchanger.
Such as, owing to employing the motor-drive pump through regulating, the flexible pipe thermoregulator before used becomes unnecessary, which reduces the quantity of different assembly in chilled(cooling) water return (CWR).When internal-combustion engine cuts out, cooling water is flowed out by the water side of motor-drive pump from heat exchanger now, and approximate being pumped in main water cooler is not in the loop flow through and cool simultaneously.In order to keep little this effect relative to the new-create bypass branch of use, throttle valve is comprised in this first branch road, and the second branch road or bypass branch do not have throttle valve and and then cooling adjustable major part of cooling water in main water cooler, again the loss heat from oil return line can be being absorbed by heat exchanger subsequently after motor-drive pump.According to prior art, this maintenance cooling as required or to discharge loss heat from oil return line be impossible when internal-combustion engine cuts out.
According to the particularly advantageous improvement project of one, in the new bypass branch in water cooling loop, use one-way valve or safety check, this one-way valve or safety check only allow the flow direction from the water side of heat exchanger to the outlet of the cooling unit of internal-combustion engine.This improvement project considers that this is true: the transmission power of pump that is related to this, that be coupled with combustion engine mechanical and delivered volume are obviously greater than transmission power and the delivered volume of motor-drive pump.When connecting internal-combustion engine, such as, in the mixed running of hybrid drive, the mechanical pump of internal-combustion engine aspirates by the water heated towards main water cooler from the branch road with throttle valve via thermoregulator and internal-combustion engine.Meanwhile, the safety check in the new bypass branch in water cooling loop prevents to be walked around from internal-combustion engine the water side that main water cooler directly arrives heat exchanger by the cooling water of heat intensive.
In addition, this task also by for motor vehicle driven by mixed power, form is that the device of cooling system completes, wherein, by regulation by the motor-drive pump in the temperature adjustment water-flow circuit in oil return line, and be provided with point of branching in the water side of heat exchanger, at point of branching place, the branch road on the one hand with throttle valve is connected between motor-drive pump and thermoregulator, after bypass branch is connected to the outlet of the cooling unit of internal-combustion engine on the other hand or place.
In preferred embodiments, bypass branch has one-way valve or safety check, and this one-way valve or safety check only allow the flowing from the water side of heat exchanger to the outlet of the cooling unit of internal-combustion engine.
Concerning above-mentioned motor vehicle driven by mixed power, reduce or also achieve the loss heat of fully discharging from the oil return line of hybrid drive in the running state of internal-combustion engine of closing.Therefore, except the speed changer cooling when the pure driving by internal-combustion engine is together with except the cooling to the motor run in generator mode and affiliated power electric device, also meets by internal-combustion engine and open the combination drive of motor and the pure driving by motor.
Advantageously, be integrated with speed changer drive unit be used as electric driver, thus only need compact structure unit to insert in oil return line and there is best temperature while heat radiation power fully providing at any time.
Accompanying drawing explanation
Further describe with reference to the accompanying drawings according to the further feature of embodiment of the present invention compared with known cooling system and advantage below with reference to embodiments of the invention.Wherein illustrate with schematic diagram:
Fig. 1 is the block diagram of embodiments of the invention;
Fig. 2 is similar to Fig. 1, view by the known cooling system of prior art;
Fig. 3 a is the block diagram when internal-combustion engine is turned off according to Fig. 1, which depict flow path, and
Fig. 3 b is the block diagram when internal-combustion engine is opened according to Fig. 1, which depict flow path.
Embodiment
Ignore different accompanying drawings, concerning identical element, use identical reference character all the time.
The block diagram of Fig. 2 illustrates by the known cooling system 1 of prior art, and its initial design is used for the vehicle driven by internal-combustion engine 2.This vehicle expands to so-called plug-in hybrid vehicle (Plug-in-Hybrid) by adding motor 3 now.But, because remain the basic structure of cooling system at this, thus below by only have internal-combustion engine 2 vehicle drive unit cooling unit describe this structure:
Be arranged in water cooling loop 5 together with internal-combustion engine 2 and the pump 4 that is coupled with this combustion engine mechanical, this water cooling loop is expelled to excessive heat energy environment from water cooling loop 5 by main water cooler 6.In water cooling loop 5, so bypass 7 is controlled by thermoregulator 8, namely when still cooling that is cold or internal-combustion engine 2 for other reasons is unnecessary excessively for internal-combustion engine 2, the water cooling loop 5 driven by water-circulating pump 4 is so closed by thermoregulator 8 via bypass 7/connects, and makes main water cooler 6 near short circuit and does not have heat to be expelled in environment.This situation is drawn a circle by the point in Fig. 2 and is illustrated.On the contrary, if must cooling internal combustion engines 2, then thermoregulator 8 cuts out bypass 7, then obtain the circulation along with the heat radiation by main water cooler 6, as by shown in dotted line circle larger in Fig. 2.
In this embodiment, in order to cool speed changer 10, when using automated transmission for vehicles 10, use in oily cooling circuit and be called automatic transmission fluid--be abbreviated as the dedicated transmission oil of ATF, this dedicated transmission oil therefore both for the hydraulic function of controlled variator 10 inside also for lubrication and cooling speed changer 10.For this reason, in oily cooling circuit 11, be provided with oil pump 12, it is so coupled with speed changer 10, that is, this oil pump be provided for cooling speed changer 10, both depended on that power also depended on the oily transmission power of rotating speed.At this, when transmission oil temperature is higher than 90 DEG C, speed changer 10 has the high efficiency being worth pursuing usually.In order to discharge superfluous heat from oily cooling circuit 11, this oily cooling circuit is closed by the oily side 13 of ATF cooler 14.In ATF cooler 14, heat transfers in the branch road 16 in water cooling loop 5 by water side 15, wherein, and this branch road 16 cross-over connection thermoregulator 8.Because the radiating efficiency of this water branch road 16 should be used for exporting the superfluous heat from oily cooling circuit 11, thus its with and the pump power of water pump 4 that is coupled of internal-combustion engine 2 ameliorating effect that independently reacts on the flexible pipe thermoregulator 18 of outflow place in water side 15 by independent, electrically driven (operated) pump 17 of inflow place in the water side 15 of ATF cooler 14 supplied cooling water by from main water cooler 6.Flexible pipe thermoregulator 18 almost can stop the branch road 16 of water loop 5 completely, thus the cooling water flowed out by the water side 15 of ATF cooler 14 almost has the temperature of the ATF oil of oil return line 11.Along with the maximum temperature of setting in flexible pipe thermoregulator 18 the oil exceeded oily circulation loop 11, flexible pipe thermoregulator 18 disconnects, thus when being carried by unregulated motor-drive pump 17, the heat from ATF cooler 14 can be expelled to main water cooler 6 by water loop 5.
As mentioned above, this cooling system 1 is expanded for the formation of the motor 3 of plug-in hybrid driving device by adding now.This motor 3 forms an element of construction together by joint space-efficient integrated (as being only considered as the so-called special circumstances being integrated with the motor of speed changer) and speed changer 10, and this element of construction can correspondingly also only cool via ATF cooler 14 commonly by the ATF oil of oily cooling circuit 11.But speed changer 10 is in oil temperature higher than just reaching the high efficiency being worth pursuing when about 90 DEG C, and motor 3 passes through oilcan in oil temperature lower than when 70 DEG C
in and in the good cooling at winding head place, there is high efficiency.From the fixing limiting value of winding or magnet temperature, motor 3 runs in the scope of so-called load shedding curve.In order to the contrary temperature requirement at oily circulation loop 11 place that is equilibrated at motor 3 equitably and the oil return line place at speed changer 10 can be similar to, according to prior art in above-mentioned cooling system 1 in flexible pipe thermoregulator 18 setting be used for the compromise temperature of the oil of oily circulation loop 11.By this compromise loss receiving the efficiency aspect of speed changer 10 and motor 3.
Fig. 1 illustrates and illustrates block diagram that is similar, embodiment of the present invention with Fig. 2.Be from the different of block diagram of Fig. 2, this is in water cooling circulation loop 5 and no longer there is flexible pipe thermoregulator 18.Temperature T in oil cooling circuit 11, is detected by the measuring point at motor 3 place directly by detecting at the inner measuring point not shown further of speed changer 10 alternatively at this.Temperature T is transfused in control gear 19.By the initial value of oil cooling loop temperature T, determine the control signal 20 of the motor-drive pump 17 for water loop 5 in control gear 19, wherein, pump 17 is now configured to the pump through regulating.New design according to the block diagram with reference to figure 1, the cooling of motor 3 and speed changer 10 is no longer controlled by flexible pipe thermoregulator 18, therefore eliminates this branch road.But, temperature that detect based on the thermoregulator 8 via water cooling loop 5 as required, internal-combustion engine 2 and carry out this cooling when using the regulatory function in control gear 19 by the temperature in oily cooling circuit 11.
Control gear 19 is not extra component, but a kind of component of having existed in the driving mechanism of motor vehicle in modern times or circuit.Correspondingly only extend the functional of this component.Because transmit corresponding running state to control gear 19, namely drive by means of only motor 3, drive or mixed running by means of only internal-combustion engine 2, so can so run according to the load existed as required utilizing best on the basis of the cooling circuit of each assembly, namely concerning driver except for accelerate or also for can also provide except the maximum electric power of the charging of on-vehicle battery the maximum power of hybrid drive for.Because the electrically driven (operated) pump 17 in the branch road 16 in only water cooling loop 5 when needed just works, so obtain following advantage:
-when cold operation, pump 17 is approximate to be turned off and does not therefore need energy relative to according to the old design of Fig. 2.
-on the contrary in other cases, replace consistently based on the pump that same rotational speed is run, manipulate described pump as required at this, this saves electric energy equally.
Because control gear 19 exists usually, and by means of only this aforementioned extra input parameter and extra adjustment task to be loaded extraly by a small margin, so compared with known design, only there is relatively little hardware cost by realizing embodiments of the invention due to less complexity entirety, especially it is to be noted and eliminating flexible pipe thermoregulator 18.
Even if in order to also abundant cooling can be guaranteed when internal-combustion engine 2 is turned off, in the implementation of figure 1, flow direction along cooling water is seen, point of branching 21 is provided with after the water side 15 of heat exchanger 14, from this point of branching, after bypass branch 22 is connected to the outlet of the unshowned cooling unit of internal-combustion engine 2 or outlet port.Show the situation that internal-combustion engine 2 cuts out in fig. 3 a.For clarity sake, only still with dotted line, inoperative, to have thermoregulator 8, mechanical pump 4 and internal-combustion engine 2 minor loop is shown at this.When being driven by motor-drive pump 17, in order to discharge superfluous heat Q
e, cooling water is directed to main water cooler 6 and is back to motor-drive pump 17 therefrom by bypass branch 22 from oil return line 11 through the internal-combustion engine 2 of closing in large loop I.
When describing runnability when internal-combustion engine 2 is connected with reference to figure 3b, other element of the cooling circuit of Fig. 1 and 3a becomes and is appreciated that.For discharging superfluous heat Q from oil return line 11 by bypass branch 22 via main water cooler 6
e, point-draw-large circulation loop I that line is drawn drives basically by motor-drive pump 17 again.In order to discharge the used heat of the surplus of internal-combustion engine 2, another loop II is closed via main water cooler 6 by thermoregulator 8, and wherein, the heating function being directed to Fig. 2 description when manipulating bypass 7 via thermoregulator 8 hereinbefore remains unchanged.In view of relative to motor-drive pump 17, the obviously larger delivered volume of the pump 4 be coupled with internal-combustion engine 2 machinery, must prevent at this, the cooling water heated by internal-combustion engine 2 pushes back the bifurcation 21 of the water side 15 of heat exchanger 14 by bypass branch 22.Therefore, in bypass branch 22, be provided with safety check 23, this safety check only allows the flow direction of water side 15 to the main water cooler 6 from heat exchanger 14.
In order to the used heat Q of oil return line also can be considered during temperature in regulating loop II
eeffect, in the I of loop, branch road 24 is drawn at point of branching 21 place, and lead to thermoregulator 8 in the II of loop before.The pump 4 of internal-combustion engine 2 aspirates cooling water by this branch road 24 and thermoregulator 8.In order to the restriction in this set amount, in branch road 24, be provided with throttle valve 25.
According to Fig. 3 a, when internal-combustion engine 2 is turned off, the throttle valve 25 of branch road 24 plays the effect to quantitative limitation equally: the circulation loop being defined the cooling water without cooling by branch road 24 via the water side 15 of motor-drive pump 17 and heat exchanger 14, and large loop I can be expelled to the heat of surplus in air by main cooling water cooler 6.At this, the throttle valve 25 in branch road 24 is intervened again, to keep the little share of the cooling water without cooling.
Therefore, when changing very little, in order to be used in Motor Vehicle best plug-in hybrid driving device in and in order to be used in be integrated in speed changer 10 and in oil cooled drive motor 3, by aforementioned design newly, when realizing aforementioned advantages, further improve that itself is known and in use also through test and the cooling system structure in two loops that proves.
Reference numerals list
1 cooling system
2 internal-combustion engines
3 motors
4 pumps
5 water cooling loops
6 main water coolers
7 bypasses
8 thermoregulators
10 speed changers
11 oily cooling circuits
12 oil pumps
The oily side of 13 heat exchangers 14
14 ATF cooler/heat exchangers
The water side of 15 heat exchangers 14
The branch road of 16 water loops
The motor-drive pump of 17 water branch roads
18 flexible pipe thermoregulators
19 control gear
The control signal at motor-drive pump 17 place through regulating in the branch road 16 of 20 water loops 5
21 point of branching
22 bypass branch
23 safety check
24 branch roads
25 throttle valve
Q
esuperfluous heat
Temperature in T oil circulation loop 11
Large loop in I water cooling loop 5
Minor loop in II water cooling loop 5
Claims (8)
1. one kind for regulating the method for the cooling system (1) of drive device for hybrid vehicle, this cooling system has oil return line (11) and water cooling loop (5), wherein, oil return line (11) for regulating the heat of speed changer (10) and motor (3), superfluous heat (Q
e) be passed to water cooling loop (5) from oil return line (11) by heat exchanger (14), and the used heat of internal-combustion engine (2) also pass through this water cooling loop (5) by thermoregulator (8) regulate and when use main water cooler (6) be discharged in environment, it is characterized in that, regulated by the Current Temperatures (T) in oil return line (11) in use, when motor-drive pump (17) in water cooling loop (5), cooling water is after the water side (15) leaving heat exchanger (14) before point of branching (21) place is on the one hand directed into thermoregulator (8) by the branch road (24) with throttle valve (25) and after being directed into internal-combustion engine (2) when using bypass branch (22) in water cooling loop (5) on the other hand.
2. the method according to aforementioned claim, is characterized in that, uses safety check (23) in the bypass branch (22) in water cooling loop (5).
3. according to method in any one of the preceding claims wherein, it is characterized in that, when using control gear (20) based on the motor-drive pump (17) regulated at speed changer (10) or the temperature value (T) determined in motor (3) in water cooling loop (5).
4. according to method in any one of the preceding claims wherein, it is characterized in that, use the drive unit being integrated with speed changer as drive motor (3).
5. the cooling system of a motor vehicle driven by mixed power, this cooling system has oil return line (11) and water cooling loop (5), described motor vehicle driven by mixed power has at least one drive motor (3), speed changer (10) and at least one internal-combustion engine (2), wherein, drive motor (3) and speed changer (10) are arranged in closed oil return line (11), and described oil return line is coupled for transmitting superfluous heat (Q by heat exchanger (14) and the branch road (16) of water loop (5)
e), and water cooling loop (5) are designed for and also the heat of internal-combustion engine (2) are discharged in environment by main water cooler (6), wherein, especially true being designed for of cooling system (1) is implemented according to method in any one of the preceding claims wherein, namely, regulate the motor-drive pump (17) in water cooling loop (5) by the temperature (T) in oil return line (11) and be provided with point of branching (21) at water side (15) place of heat exchanger (14) according to the rules, from point of branching (21)s, the branch road (24) on the one hand with throttle valve (25) is connected between motor-drive pump (17) and thermoregulator (8), on the other hand, after bypass branch (22) is connected to the outlet of the cooling unit of internal-combustion engine (2) or described outlet port.
6. cooling system according to claim 5, it is characterized in that, bypass branch (22) comprises safety check (23), and this safety check only allows the flowing from the water side (15) of heat exchanger (14) to the outlet of the cooling unit of internal-combustion engine (2).
7. the cooling system according to claim 5 or 6, it is characterized in that, speed changer (10) and/or motor (3) are designed for be determined temperature value (T) in oil return line (11) and is connected with control gear (19) to transmit temperature value (T), the motor-drive pump (17) in the branch road (16) of described control gear manipulation water cooling loop (5).
8. the cooling system according to any one of aforementioned claim 5-7, is characterized in that, drive motor (3) and speed changer (10) are configured to the drive unit being integrated with speed changer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201310019687 DE102013019687B3 (en) | 2013-11-26 | 2013-11-26 | Cooling system for a hybrid vehicle comprising at least one electric drive machine and at least one internal combustion engine and method for its regulation |
| DE102013019687.6 | 2013-11-26 |
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| Publication Number | Publication Date |
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| CN104675504A true CN104675504A (en) | 2015-06-03 |
| CN104675504B CN104675504B (en) | 2017-04-12 |
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| CN201410693560.XA Active CN104675504B (en) | 2013-11-26 | 2014-11-26 | Cooling system for hybrid vehicle and adjusting method thereof |
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| CN (1) | CN104675504B (en) |
| DE (1) | DE102013019687B3 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870096A (en) * | 2015-12-10 | 2017-06-20 | 现代自动车株式会社 | For the cooling system of vehicle |
| CN106904070A (en) * | 2015-12-21 | 2017-06-30 | 丰田自动车株式会社 | Vehicle cooling device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1319815A2 (en) * | 2001-12-15 | 2003-06-18 | DaimlerChrysler AG | Cooling circuit of a liquid cooled internal combustion engine |
| CN1793622A (en) * | 2004-12-23 | 2006-06-28 | 现代自动车株式会社 | Cooling system for an engine |
| CN101184910A (en) * | 2005-07-28 | 2008-05-21 | 奥迪股份公司 | Cooling system for a vehicle, and method for the operation of a cooling system |
| CN102442200A (en) * | 2010-10-07 | 2012-05-09 | 现代自动车株式会社 | Cooling system for hybrid vehicle |
| US20120173063A1 (en) * | 2010-12-31 | 2012-07-05 | Mahesh Madurai Kumar | Hybrid vehicle powertrain cooling system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR9808326A (en) * | 1997-03-11 | 2000-05-16 | Bosch Gmbh Robert | Electric machine integrated in the gear for internal combustion engines of automobiles and control thereof |
| DE102009023724A1 (en) * | 2009-06-03 | 2010-12-09 | Bayerische Motoren Werke Aktiengesellschaft | Method for cooling transmission oil of hybrid vehicle, involves pumping coolant in coolant cycle of internal combustion engine by electrical coolant pump in operating conditions of vehicle |
| DE102010004903A1 (en) * | 2010-01-19 | 2011-07-21 | Dr. Ing. h.c. F. Porsche Aktiengesellschaft, 70435 | Hybrid vehicle, has separate hybrid cooling circuit provided for hybrid components that are attached to secondary drive, where hybrid cooling circuit is designed independent of main cooling circuit, and has separate hybrid cooler |
| KR101144078B1 (en) * | 2010-08-26 | 2012-05-23 | 기아자동차주식회사 | Thermal management system and method for hybrid electric vehicle |
| DE102011118898A1 (en) * | 2011-11-18 | 2012-06-06 | Daimler Ag | Device for thermal coupling of two cooling circuits in vehicle, has cooling circuits that are formed as high-temperature circuit and low-temperature circuit and are couple by mixing valve in thermal and fluidic manner |
-
2013
- 2013-11-26 DE DE201310019687 patent/DE102013019687B3/en active Active
-
2014
- 2014-11-26 CN CN201410693560.XA patent/CN104675504B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1319815A2 (en) * | 2001-12-15 | 2003-06-18 | DaimlerChrysler AG | Cooling circuit of a liquid cooled internal combustion engine |
| CN1793622A (en) * | 2004-12-23 | 2006-06-28 | 现代自动车株式会社 | Cooling system for an engine |
| CN101184910A (en) * | 2005-07-28 | 2008-05-21 | 奥迪股份公司 | Cooling system for a vehicle, and method for the operation of a cooling system |
| CN102442200A (en) * | 2010-10-07 | 2012-05-09 | 现代自动车株式会社 | Cooling system for hybrid vehicle |
| US20120173063A1 (en) * | 2010-12-31 | 2012-07-05 | Mahesh Madurai Kumar | Hybrid vehicle powertrain cooling system |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107532500A (en) * | 2015-07-08 | 2018-01-02 | 宝马股份公司 | Coolant circuit for liquid-cooled transmission |
| CN107532500B (en) * | 2015-07-08 | 2019-12-10 | 宝马股份公司 | Coolant circuit for liquid-cooled transmission |
| CN106870096A (en) * | 2015-12-10 | 2017-06-20 | 现代自动车株式会社 | For the cooling system of vehicle |
| CN106904070A (en) * | 2015-12-21 | 2017-06-30 | 丰田自动车株式会社 | Vehicle cooling device |
| CN106904070B (en) * | 2015-12-21 | 2019-11-26 | 丰田自动车株式会社 | Vehicle cooling device |
| CN107152333A (en) * | 2016-03-02 | 2017-09-12 | 奥迪股份公司 | Method for running motor vehicle |
| CN107152333B (en) * | 2016-03-02 | 2019-10-08 | 奥迪股份公司 | Method for running motor vehicle |
| CN107225956A (en) * | 2016-03-24 | 2017-10-03 | 长城汽车股份有限公司 | Dynamical system |
| CN111094799A (en) * | 2017-08-30 | 2020-05-01 | 标致雪铁龙汽车股份有限公司 | Assembly of cooling circuits for heat engines and gearboxes |
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| CN112997027B (en) * | 2018-11-09 | 2024-05-17 | 采埃孚股份公司 | Working medium circuit of transmission |
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| CN112350517A (en) * | 2019-08-06 | 2021-02-09 | 日本电产株式会社 | Motor unit, temperature control system, and vehicle |
| CN114046200A (en) * | 2021-11-09 | 2022-02-15 | 上海柴油机股份有限公司 | Anti-overheating cooling system of hybrid power engine and control method thereof |
| CN114046200B (en) * | 2021-11-09 | 2023-02-17 | 上海新动力汽车科技股份有限公司 | Anti-overheating cooling system of hybrid power engine and control method thereof |
| CN115030806A (en) * | 2022-06-20 | 2022-09-09 | 东风汽车集团股份有限公司 | High-temperature dynamic protection method for engine cooling water in hybrid electric vehicle |
| CN115030806B (en) * | 2022-06-20 | 2023-05-16 | 东风汽车集团股份有限公司 | High-temperature dynamic protection method for engine cooling water in hybrid vehicle type |
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| Publication number | Publication date |
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| DE102013019687B3 (en) | 2015-03-26 |
| CN104675504B (en) | 2017-04-12 |
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