CN205395988U - Hybrid vehicle coupling mechanism cooling and lubrication system - Google Patents
Hybrid vehicle coupling mechanism cooling and lubrication system Download PDFInfo
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- CN205395988U CN205395988U CN201620150396.2U CN201620150396U CN205395988U CN 205395988 U CN205395988 U CN 205395988U CN 201620150396 U CN201620150396 U CN 201620150396U CN 205395988 U CN205395988 U CN 205395988U
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Abstract
The utility model relates to an automotive filed discloses a hybrid vehicle coupling mechanism cooling and lubrication system, and it includes first pump, second pump, first coolant oil passageway and second coolant oil passageway, the second pump is mechanical pump, the driving motor's of second pump and coupling mechanism output shaft or jackshaft coaxial coupling to along with the driving motor operation, first coolant oil passageway is connected with first pump, and first coolant oil passageway is carried the coolant oil to the generator and the clutch of coupling mechanism and is carried out cooling and lubrication to generator and clutch under the drive of first pump, second coolant oil passageway is connected with the second pump, and second coolant oil passageway is carried the coolant oil and is carried out cooling and lubrication to driving motor and to driving motor under the drive of second pump. The utility model discloses the collection is lubricated as an organic whole with the cooling, second pump and driving motor's output shaft or the jackshaft is coaxial arranges, and its simple structure reduces the weight of space layout size and system, saving cost.
Description
Technical field
This utility model relates to automotive field, particularly relates to a kind of hybrid vehicle coupling mechanism cooling and lubricating system.
Background technology
Along with the raising of the shortage of petroleum resources and people's environmental consciousness, and the requirement of increasingly stricter legislations of environmental protection, in the urgent need to the environmental protection automobile product of the energy and low emission or even zero-emission can be saved.For this, various types of new-energy automobile is developed going into overdrive in countries in the world government and each big automobile making commercial city.Compared with traditional combustion engine, hybrid vehicle refers to the vehicle using two or more energy sources.
Cooling and lubricating system as one of aid system, is one of the major technique of whole system, is also the key of whole system stable operation simultaneously.The ripe hybrid electric vehicle thrown in from existing market, the double-motor parallel-serial drive system that the Prius of Toyota Company of Japan adopts, this system to consider power transmission performance index, what also to realize structurally and functionally is integrated, accomplish miniaturization, lightweight, intellectuality and modularity, this system casing internal employing oil lubrication related components and housing arrange cooling jacket and carries out whole system cooling by cooling water circulation.What the BYD F3DM of China adopted is also dual-motor drive system, and this system configuration is relatively simple compared with Prius system, adopts the method for similar Prius lubrication whole system is lubricated and cools down simultaneously.The housing of this lubricating and cooling system needs increasingly complex technique and manufacture requirements, causes that production efficiency reduces, and increases cost, too increases the size of whole system, accordingly, it would be desirable to improve further simultaneously.
Coupling mechanism has two kinds of mode of operations, one is electric-only mode, two is increase journey pattern or hybrid mode, the fluid of the cooling oil required by different mode of operations is different with flow, the cooling and lubricating system having at present adopts the first pump or the second pump as power source, no matter which kind of mode of operation coupling mechanism is in, and all adopts same power source that coupling mechanism is carried out cooling and lubricating, and it is big, relatively costly that the system that thereby results in controls difficulty.
In order to reduce the control difficulty of existing hybrid vehicle coupling mechanism cooling and lubricating system with regard to cost, have at present to adopt and cooling and the lubrication of coupling mechanism are integrated, adopt two pumps as the power source of fluid cooling and lubricating, can switch over according to the mode of operation of coupling mechanism, saving development cost, reduce control difficulty, in prior art, one of them pump is to be connected by gear pair axle different from the power source of coupling mechanism, driving by gear pair, its structure is more complicated, it is bigger to take up room.
Utility model content
The purpose of this utility model is to provide a kind of hybrid vehicle coupling mechanism cooling and lubricating system, and this system integrates cooling and lubrication, and can the structure of simplified system, the bulk reducing system and weight.
To achieve these goals, this utility model provides a kind of hybrid vehicle coupling mechanism cooling and lubricating system, described coupling mechanism includes differential mechanism, electromotor and drive motor, described electromotor is coaxially connected with the power shaft of automobile engine, it is provided with clutch between described electromotor and electromotor, described drive motor is by actuating device and described clutch, differential mechanism connects, described actuating device includes jackshaft, first gear pair and the second gear pair, the output shaft of described drive motor is connected with described jackshaft by the first gear pair, described jackshaft is connected with described differential mechanism by the second gear pair；
Described cooling and lubricating system includes:
First pump；
Second pump, described second pump is mechanical pump, and described second pump is coaxially connected with the output shaft of described drive motor or described jackshaft, and along with drive motor operates；
First cooling oil passage, it is connected with described first pump, and cooling oil, under the driving of the first pump, is delivered to electromotor and clutch and electromotor and clutch are carried out cooling and lubricating by described first cooling oil passage；
Second cooling oil passage, it is connected with described second pump, and cooling oil, under the driving of described second pump, is delivered to drive motor and drive motor is carried out cooling and lubricating by described second cooling oil passage.
Preferably, described first pump is mechanical pump, and described first pump is connected with the power shaft of electromotor by the 3rd gear pair, and along with electromotor operates.
Preferably, described first pump is electrodynamic pump, and the outside of coupling mechanism is located at by described first pump, and individually controls operating.
Preferably, described cooling and lubricating system also includes hydraulic module, described first cooling oil passage and the second cooling oil passage are integrated in described hydraulic module, and described hydraulic module controls the size of the oily trend of cooling and flow according to the temperature that the mode of operation of coupling mechanism and coupling mechanism are internal.
Preferably, described cooling and lubricating system also includes being located at the oil supply mechanism bottom described coupling mechanism, described oil supply mechanism includes oil sump and nutsch filter, and the oil-out place of described oil sump is located at by described nutsch filter, and described nutsch filter is connected with described first pump, the second pump.
Preferably, described cooling and lubricating system also includes being located at the oil cooling system outside described coupling mechanism, and described oil cooling system is for cooling oil and the cooling oil after cooling is delivered to described first cooling oil passage and the second cooling oil passage；
Described oil cooling system includes oil cooler and the first switch；Described oil cooler is connected with described first pump, the second pump by the first pipeline, and described oil cooler is connected with described first cooling oil passage, the second cooling oil passage by the second pipeline；
Described first switch is located on described first pipeline and the second pipeline, is used for detecting the temperature of cooling oil, and realizes the break-make control of the first pipeline and the second pipeline according to the temperature cooling down oil.
Preferably, described cooling and lubricating system also includes the 3rd pipeline, the 4th pipeline and the 5th pipeline；
Connecting with described 3rd pipeline, the first pipeline after described 4th pipeline and the 5th pipeline parallel connection, the other end of described 3rd pipeline is oil-in, and the other end of described first pipeline is connected with described oil cooler；
Described first pump is connected with described 4th pipeline, and described second pump is connected with described 5th pipeline.
Preferably, described cooling and lubricating system also includes the 6th pipeline, one end of described 6th pipeline is connected with the oil-out of described 4th pipeline, the 5th pipeline, and the other end of described 6th pipeline is connected with described clutch, and the motion for the piston for described clutch provides oil pressure；
Described 6th pipeline is provided with second switch, and described second switch is for controlling break-make and the trend of the 6th pipeline.
Preferably, described first pipeline is provided with the 3rd switch, and described 3rd switch is for controlling the size of the oil pressure of the first pipeline；Described 3rd switch is connected to the oil return pipe of unnecessary cold oil return.
A kind of hybrid vehicle coupling mechanism cooling and lubricating system provided by the utility model, integrate cooling and the lubrication of coupling mechanism, its integrated level is high, system adopts the first pump and the second pump as the power source of fluid cooling and lubricating, can switch over according to the mode of operation of coupling mechanism, save development cost, reduce control difficulty；Second pump disclosure satisfy that the cooling and lubricating requirement of drive motor under electric-only mode, the running speed of the second pump regulates according to the running speed of drive motor, individually the second pump need not be controlled, can save and develop into, and under extended-range or hybrid mode, the first pump can improve enough hydraulic pressure and flow and electromotor and clutch are carried out cooling and lubricating；Further, it is also possible to the cooling and lubricating demand of different operating mode can be met by regulating the rotating speed of the first pump；Second pump is coaxially arranged with the output shaft of drive motor or jackshaft, its simple in construction, the weight of reduction space layout size and system, and decreases driving gear and the driven gear of mechanical pump, has saved cost.
Accompanying drawing explanation
Fig. 1 is the hydraulic scheme of this utility model embodiment one hybrid vehicle coupling mechanism cooling and lubricating system；
Fig. 2 is the structural representation of the coupling mechanism of this utility model embodiment one；
Fig. 3 is the structural representation of the coupling mechanism of this utility model embodiment two；
Fig. 4 is the structural representation of the coupling mechanism of this utility model embodiment three；
Fig. 5 is the structural representation of the coupling mechanism of this utility model embodiment four.
Wherein: 1, electromotor；2, the power shaft of electromotor；3, the first pump driving gear；4, the first pump driven gear；5, the power shaft of the first pump；6, the first pump；7, clutch；8, the first gear；9, electromotor；10, the second gear；11, jackshaft；12, the 3rd gear；13, drive motor；14, the output shaft of drive motor；18, the second pump；19, the 4th gear；20, the 5th gear；21, differential mechanism；22, the first jack shaft；23, the second jack shaft；24, oil sump；25, nutsch filter；26, the 3rd pipeline；27, the 4th pipeline；28, the 5th pipeline；29, the 6th pipeline；30, cooler；31, the first pipeline；32, the second pipeline；33, the first switch；34, second switch；35, the 3rd switch；36, the oil pocket of clutch；37, oil return pipe；38, hydraulic module；39, the first branch road of the first cooling oil passage；40, the second branch road of the first cooling oil passage；41, the second cooling oil passage；42, electromotor spray bar；43, clutch spray bar；44, drive motor spray bar.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following example are used for illustrating this utility model, but are not limited to scope of the present utility model.
First embodiment of hybrid vehicle coupling mechanism cooling and lubricating system
As depicted in figs. 1 and 2, a kind of hybrid vehicle coupling mechanism cooling and lubricating system that this utility model embodiment provides, wherein, coupling mechanism includes electromotor 9, drive motor 13, differential mechanism 21 and coupling mechanism controller, electromotor 9 is coaxially connected with the power shaft 2 of automobile engine, clutch 7 it is provided with between electromotor 1 and electromotor 9, drive motor 13 is connected with clutch 7 and differential mechanism 21 by actuating device, electromotor 9, drive motor 13, differential mechanism 21 and clutch 7 are all connected with coupling mechanism controller, and are subject to the control of coupling mechanism controller；Clutch 7 can realize the joint of drive motor 13 and electromotor 1 or separate；When engaging clutch 7, drive motor 13, electromotor 1 and electromotor 9 work simultaneously, and coupling mechanism is in hybrid mode or increases journey pattern；When separating clutch 7, electromotor 1 and electromotor 9 do not work, and only drive motor 13 works, and is in electric-only mode.
nullActuating device includes the first gear 8、Second gear 10、3rd gear 12、4th gear 19、5th gear 20 and jackshaft 11，Wherein，First gear 8 is located on the output shaft of electromotor 1 and is connected with the secondary part of clutch 7，The active part of clutch 7 is connected with the output shaft of electromotor 1，First gear 8 is meshed with the second gear 10，3rd gear 12 is located on the output shaft 14 of drive motor，3rd gear 12 is meshed with the second gear 10，Second gear 10 and the 4th gear 19 are respectively arranged on the two ends of jackshaft 11，4th gear 19 is meshed with the 5th gear 20，5th gear 20 is connected with differential mechanism 21，Differential mechanism 21 is connected with the first jack shaft 22，5th gear 20 is located on the second jack shaft 23，Wherein，Second gear 10 and the 3rd gear 12 are set to the first gear pair，4th gear 19 and the 5th gear 20 are set to the second gear pair.
Cooling and lubricating system includes first pump the 6, second pump 18, first and cools down oil passage and the second cooling oil passage 42, wherein, first pump 6 of the present embodiment is electrodynamic pump, it is located at the outside of coupling mechanism, and individually control operating, second pump 18 is mechanical pump, and second pump the 18, first cooling oil passage and the second cooling oil passage 42 are located at the inside of coupling mechanism, are formed as internal cooling lubricating system.First pump 6 individually controls operating, and the second pump 18 is coaxially connected with the output shaft 14 of drive motor, the driving force of drive motor 13 thus can be delivered to the second pump 18 to drive the second pump 18 to operate.Second pump 18 is coaxially arranged with the output shaft 14 of drive motor, its simple in construction, reduction space layout size, and decreases driving gear and the driven gear of mechanical pump, saves cost.
First cooling oil passage and the first pump 6 connect, this the first cooling oil passage includes the first branch road and the second branch road, wherein, first branch road 39 of the first cooling oil passage is for being delivered to electromotor 9 so that electromotor 9 to be lubricated by cooling oil, second branch road 40 of the first cooling oil passage for being delivered to clutch 7 and clutch 7 being carried out cooling and lubricating by cooling oil, and the parts such as generator unit stator, dynamo bearing, clutch friction plate and clutch bearing are mainly carried out cooling and lubricating by the second cooling oil passage 41；Second cooling oil passage 41 is connected with the second pump 18, for cooling oil being delivered to drive motor 13 and drive motor 13 being carried out cooling and lubricating, mainly the parts such as drive motor stator, drive motor gear pair and drive motor output shaft bearing are carried out cooling and lubricating.Wherein, first cooling oil passage and second cooling oil passage 41 the cooling and lubricating mode of electromotor, clutch and drive motor can be adopted oil spout, base oil or get rid of oil mode carry out.
The cooling and lubricating system of the present embodiment integrates cooling and the lubrication of coupling mechanism, its integrated level is high, the bulk of system can be reduced and alleviate the weight of system unit, system adopts the power source that the second pump 18 and the first pump 6 cool down as oil lubrication, can switch over according to the mode of operation of coupling mechanism, save development cost, reduce control difficulty；Second pump 18 disclosure satisfy that the cooling and lubricating requirement of drive motor under electric-only mode, the running speed of the second pump 18 regulates according to the running speed of drive motor 13, individually the second pump 18 need not be controlled, can save and develop into, and under extended-range or hybrid mode, first pump 6 can improve enough hydraulic pressure and flow and electromotor 9 and clutch 7 are carried out cooling and lubricating, can meet the cooling and lubricating demand of different operating mode by regulating the rotating speed of the first pump 6.
Can by the outside internal lubricating system fuel feeding that oil supply mechanism is the present embodiment, internal oil supply mechanism fuel feeding can also be passed through, preferably, the oil circulation use of cooling in order to realize, the cooling and lubricating system of the present embodiment also includes the oil supply mechanism being located at bottom coupling mechanism, and this oil supply mechanism is used for as cooling and lubricating system fuel feeding.The oil supply mechanism of the present embodiment can be arbitrary structures, can be fuel tank, tank structure, it is preferable that the oil supply mechanism of the present embodiment includes oil sump 24 and nutsch filter 25, the oil-out place of oil sump 24 is located at by nutsch filter 25, and nutsch filter 25 is connected with first pump the 6, second pump 18.
Temperature in order to avoid cooling down oil is too high and affects the cooling and lubricating effect of coupling mechanism, preferably, the cooling and lubricating system of the present embodiment also includes the external refrigeration system being located at outside coupling mechanism, this external refrigeration system for cooling oil and by cooling after cooling oil be delivered to the first cooling oil passage and second cooling oil passage 41 provide cooling oil, so that drive motor 13, electromotor 9 and clutch 7 are carried out cooling and lubricating, oil cooling system is set and conveniently can provide cooling oil for the cooling and lubricating of coupling mechanism.
Oil cooling system includes oil supply mechanism, cooler 30 and the first switch 33；Oil cooler 30 is connected with first pump the 6, second pump 18 by the first pipeline 31, cooler 30 will cool down oil cooling, and cooler 30 is connected with the first cooling oil passage and the second cooling oil passage 41 by the second pipeline 32, the cooling oil after cooling to be delivered to the first cooling oil passage and the second cooling oil passage 41 by the second pipeline 32；First switch 33 is located on the first pipeline 31 and the second pipeline 32, is used for detecting the temperature of cooling oil, and realizes the break-make control of the first pipeline 31 and the second pipeline 32 according to the temperature cooling down oil.First switch 33 judgement cooling oil is the need of carrying out external refrigeration, when the temperature of cooling oil is higher than threshold value, first switch 33 will be opened so that the first pipeline 31 and the second pipeline 32 are in channel status, cooling oil first passes through the first pipeline 31 and flows into cooler 30 and cool down, and the first cooling oil passage and the second cooling oil passage 41 is flowed into by the second pipeline 32, the inside entering coupling mechanism carries out cooling and lubricating；When the temperature of cooling oil is lower than threshold value, cooling oil is circulated in the inside of internal cooling lubricating system and coupling mechanism, when cooling oil is after the structure cooling and lubricating within the first cooling oil passage and the second cooling oil passage 41 coupling mechanism altogether, the oil sump 24 that cooling oil flows into bottom coupling mechanism recycles again.
In order to facilitate control, the first switch 33 can be thermostat bypass valve.The present embodiment arranges the purpose of the first switch 33: if operating mode is complicated, the power of motor is higher, then it is very big that the motor feels hot, and only the circulation of coolant does not reach cooling effect close to the inner portion.It is necessary to for this increase a thermostat bypass valve, a threshold value is set, when coolant is flow back in oil duct after being accomplished by external refrigeration higher than threshold value by oil temperature again, cool down related components.
The internal cooling lubricating system of the present embodiment also includes the 3rd pipeline the 26, the 4th pipeline 27 and the 5th pipeline 28；Connecting with the 3rd pipeline the 26, first pipeline 31 after 4th pipeline 27 and the 5th pipeline 28 parallel connection, the other end of the 3rd pipeline 26 is connected with the nutsch filter 25 of oil supply mechanism, and the other end of the first pipeline 31 is oil-in, and it connects cooler 30；First pump 6 is connected with the 4th pipeline 27, drives the first pump 6 by the 4th pipeline 27, cooling oil can be delivered to the first pipeline 31；Second pump 18 is connected with the 5th pipeline 28, and when starting drive motor 13, the second pump 18 is driven, and by the 5th pipeline 28, cooling oil is delivered to the first pipeline 31.
Further, cooling and lubricating system also includes the 6th pipeline 29, one end of 6th pipeline 29 is connected with the oil-out of the 4th pipeline 27 and the 5th pipeline 28, and the other end of the 6th pipeline 29 is connected with the oil pocket 36 of clutch, and the motion for the piston for clutch provides oil pressure；6th pipeline 29 is provided with second switch 34, second switch 34 is for controlling break-make and the trend of the 6th pipeline 29, and when needs clutch 7 engages, second switch 34 controls the 6th pipeline 29 and connects, cooling oil provides oil pressure by the 6th pipeline 29, controls clutch 7 and engages；When engaging clutch 7, second switch 34 controls the 6th pipeline 29 and disconnects, then cooling oil cannot be introduced in the middle of the oil pocket 36 of clutch.
First pipeline 31 is provided with the 3rd switch 35, and the 3rd switch 35 is for controlling the size of the oil pressure of the first pipeline 31.Additionally, the 3rd switch 35 is connected with the oil sump 24 of oil supply mechanism by oil return pipe 37, when oil pressure is excessive, oil return pipe 37 can be passed through by the oil sump 24 of unnecessary cold oil return to oil supply mechanism.
Internal cooling lubricating system also includes hydraulic module 38, and this hydraulic module 38 controls the trend of cooling oil and the size of flow according to mode of operation and the coupling mechanism internal temperature situation of coupling mechanism.Specifically, above-described second switch the 34, the 3rd is switched the 35, first cooling oil passage and the second cooling oil passage 41 is integrated in hydraulic module 38, this hydraulic module 38 can be controlled by coupling mechanism controller, according to the temperature conditions within the operating mode of whole cooling and lubricating system, coupling mechanism, control second switch 34 and the 3rd switch 35, and then control trend and the uninterrupted of cooling oil.Wherein, second switch 34 and the 3rd switch 35 can be electromagnetic valve.
Further, internal cooling lubricating system also includes electromotor spray bar 42, clutch spray bar 43 and drive motor spray bar 44, and electromotor spray bar 42 is connected with the first branch road 39 of the first cooling oil passage, for electromotor 9 is carried out Oil injection cooling lubrication；Clutch spray bar 43 is connected with the second branch road 40 of the first cooling oil passage, and for clutch 7 carries out cooling and lubricating, drive motor spray bar 44 is connected with the second cooling oil passage 41, for drive motor is carried out Oil injection cooling lubrication.
The present embodiment distributes flow and the flow velocity of cooling oil by hydraulic module 38, stir oil or the alternate manner related components to coupling mechanism again through spray bar oil spout and gear to cool down, a lot of complicated pipeline need not be set on the housing of coupling mechanism, reduce the difficulty of processing of housing；If not adopting hydraulic module 38 and spray bar, housing can be made to increase a lot of oil ducts so that structure becomes very complicated, thus can increase processing cost.
Second embodiment of hybrid vehicle coupling mechanism cooling and lubricating system
As shown in Figure 3, the hybrid vehicle coupling mechanism cooling and lubricating system that the present embodiment provides, it differs only in embodiment one, wherein, first pump 6 is still for being located at the electrodynamic pump of the outside of coupling mechanism, and second pump 18 of the present embodiment is coaxially connected with jackshaft 11, thus can also realize the operating by drive motor 13 and drive the function of the second pump 18 operating.Second pump 18 is coaxially arranged with jackshaft 11, its simple in construction, reduction space layout size, and decreases driving gear and the driven gear of mechanical pump, saves cost.Other structure of the present embodiment is identical with embodiment one.
3rd embodiment of hybrid vehicle coupling mechanism cooling and lubricating system
As shown in Figure 4, the hybrid vehicle coupling mechanism cooling and lubricating system that the present embodiment provides, it differs only in embodiment one, first pump 6 of the present embodiment is mechanical pump, this first pump 6 is connected with the output shaft 2 of electromotor by the 3rd gear pair, and specifically, the 3rd gear pair includes intermeshing first pump driving gear 3 and the first pump driven gear 4, first pump driving gear 3 is connected with the output shaft 2 of electromotor, and the first pump driven gear 4 is connected with the power shaft 5 of the first pump.Other structure of the present embodiment is identical with embodiment one.
4th embodiment of hybrid vehicle coupling mechanism cooling and lubricating system
As shown in Figure 5, the hybrid vehicle coupling mechanism cooling and lubricating system that the present embodiment provides, itself and embodiment one are distinctive in that, first pump 6 of the present embodiment is mechanical pump, this first pump 6 is connected with the output shaft 2 of electromotor by the 3rd gear pair, and specifically, the 3rd gear pair includes intermeshing first pump driving gear 3 and the first pump driven gear 4, first pump driving gear 3 is connected with the output shaft 2 of electromotor, and the first pump driven gear 4 is connected with the power shaft 5 of the first pump.
The present embodiment and embodiment one also differ in that, second pump 18 of the present embodiment is coaxially connected with jackshaft 11, thus can also realize the operating by drive motor 13 and drive the function of the second pump 18 operating.
Other structure of the present embodiment is identical with embodiment one.
Based on the control method of the hybrid vehicle coupling mechanism cooling and lubricating system that above-described embodiment one and embodiment two provide, it is for switching over the mode of operation of cooling and lubricating system, and wherein, cooling and lubricating system includes two kinds of mode of operations.
Two kinds of mode of operation contrast tables of table one cooling and lubricating system
The control method of the present embodiment comprises the following steps:
The work order of the coupling mechanism that S1, reception coupling mechanism controller send；
S2, when coupling mechanism is in electric-only mode, the first pump 6 does not work, by coupling mechanism controller control clutch separation, electromotor 1 and electromotor 9 quit work, and drive motor 13 drives the second pump 18 to operate drive motor 13 is carried out cooling and lubricating；
S3, when coupling mechanism be in increasing journey pattern time, by coupling mechanism controller control clutch separation, the first pump 6 operates and electromotor 9 is carried out cooling and lubricating, simultaneously drives motor 13 and drives the second pump 18 to operate drive motor 13 is carried out cooling and lubricating；
S4, when coupling mechanism is in hybrid mode, control clutch by coupling mechanism controller to engage, first pump 6 operates and electromotor 9 and clutch 7 is carried out cooling and lubricating, simultaneously drives motor 13 and drives the second pump 18 to operate drive motor is carried out cooling and lubricating.
Owing to hydraulic module 38 is to be controlled by coupling mechanism controller, and second switch the 34, the 3rd switch the 35, first cooling oil passage, the second cooling oil passage 41 and the 6th pipeline 29 are integrated in hydraulic module 38, therefore, in the control method of the present embodiment, second switch 34 and the 3rd switch 35 are all subject to the control of coupling mechanism controller.
Specifically, as shown in above-mentioned table one, hereinafter it should be noted that, Second Threshold is more than first threshold, when automobile battery power is more than Second Threshold, coupling mechanism controller controls the 3rd switch 35 unlatching, 5th pipeline 28 is disconnected, clutch 7 separates, now coupling mechanism is for electric-only mode, electromotor 1 and electromotor 9 do not work, electromotor 9 and clutch 7 all do not need cooling and lubricating, first pump 6 does not need work, only drive motor 13 works, have only to cooling drive motor 13, drive motor 13 drives the second pump 18 to operate and passes through the second cooling oil passage 41 and drive motor 13 is carried out cooling and lubricating.
During when automobile battery power less than first threshold and Second Threshold, coupling mechanism controller coupling mechanism controller controls the 3rd switch 35 unlatching, 5th pipeline 28 is disconnected, clutch 7 separates, now coupling mechanism is in increasing journey pattern, electromotor 1 starts drive electrical generators 9 and generates electricity and be not involved in driving, first pump 6 operates and passes through the first branch road 39 of the first cooling oil passage and electromotor 9 is carried out cooling and lubricating, simultaneously drives motor 13 and drives the second pump 18 to operate and pass through the second cooling oily passage 41 drive motor 13 is carried out cooling and lubricating.
nullWhen automobile battery power more than first threshold less than Second Threshold time，The 3rd switch 35 closedown is controlled by coupling mechanism controller，Connect the 5th pipeline 28，Clutch 7 is engaged，Electromotor 1 and electromotor 9 participate in driving，Now coupling mechanism is in hybrid mode，Drive motor 13 drives the second pump 18 to work drive motor 13 is carried out cooling and lubricating，Second pump 18 be the hydraulic pressure that can be provided by of the 5th pipeline 28 and flow less，It is not enough to control clutch，Now start the first pump 6 and participate in work，To ensure that enough hydraulic pressure and flow are to control clutch 2，To meet the hydraulic demand of clutch 7，Now，Electromotor 9 and clutch 7 all work，Electromotor 9 and clutch 7 are carried out cooling and lubricating by the first branch road 39 of the first cooling oil passage and the second branch road 40 of the first cooling oil passage by the first pump 6.The impact of temperature and car load speed owing to being cooled oil, the hydraulic pressure that first pump 6 produces can produce fluctuation therewith, in order to obtain enough and stable hydraulic pressure, it is necessary that the motor speed (i.e. power output) of the first pump 6 is adjusted by the change of the temperature according to cooling oil and speed, to meet design requirement.
In order to meet the cooling and lubricating demand under coupling mechanism difference operating mode, the control method of the present embodiment further comprises the steps of: when being in increasing journey pattern or hybrid mode when coupling mechanism, obtain the temperature of cooling oil and the speed that automobile is current, meet the cooling and lubricating demand of different operating mode by regulating the motor speed of the first pump 6.It is at coupling mechanism under increasing journey pattern or hybrid mode, when the temperature of cooling oil is higher, and when speed is very fast, the motor speed of the first pump 6 should be improved, think that cooling and lubricating system provides enough hydraulic pressure and flow；When the temperature of cooling oil is relatively low and/or speed is relatively low, the motor speed controlling the first pump 6 can meet the hydraulic pressure of cooling and lubricating system and the requirement of flow in less scope, thus can reduce cost.
The control method of the present embodiment further comprises the steps of: the temperature of detection cooling oil；When the temperature of cooling oil is higher than threshold value, controls the first switch and open, flow into the first cooling oil passage after cooling down the cooling of the oil cooling system outside oily coupled mechanism again and the second cooling oil passage carries out cooling and lubricating with the internal structure to coupling mechanism；When the temperature of cooling oil is lower than threshold value, controlling the first switch and close, cooling oil is in the inner loop of coupling mechanism.Specifically, 33 temperature judging cooling oil are switched by first, when the temperature of cooling oil is higher than threshold value, first switch 33 will be opened so that the first pipeline 31 and the second pipeline 32 are in channel status, cooling oil flows into cooler 30 by the first pipeline 31 and cools down, and flowed into the first cooling oil passage and the second cooling oil passage 41 by the second pipeline 32, and the inside entering coupling mechanism carries out cooling and lubricating；When the temperature of cooling oil is lower than threshold value, the first switch 33 closedown, cooling oil is circulated in the inside of coupling mechanism.
The control method of the present embodiment further comprises the steps of:
Judge the oil pressure size of cooling oil；
When cooling oil oil pressure higher than preset value time, control second switch and open, cooling oil unnecessary in the first pipeline 31 is back to oil supply system by oil return pipe 37；
When the oil pressure of cooling oil is lower than preset value, control second switch to open, the inside that cooling oil is delivered to coupling mechanism all through the first cooling oil passage and the second cooling oil passage 41 is carried out cool cycles with the internal structure to coupling mechanism, it is not necessary to the backflow of cooling oil.
Based on the control method of the hybrid vehicle coupling mechanism cooling and lubricating system that above-described embodiment three and embodiment four provide, it is for switching over the mode of operation of cooling and lubricating system, and wherein, cooling and lubricating system includes two kinds of mode of operations.
Two kinds of mode of operation contrast tables of table two cooling and lubricating system
The control method of the present embodiment comprises the following steps:
The work order of the coupling mechanism that S1, reception entire car controller send；
S2, when coupling mechanism is in electric-only mode, coupling mechanism controller controls clutch 7 and separates, electromotor 1 and electromotor 9 quit work, so that the first pump 6 does not work, drive motor 13 drives the second pump 18 to operate drive motor 13 is carried out cooling and lubricating；
S3, when coupling mechanism be in increasing journey pattern, coupling mechanism controller controls clutch 7 and separates, electromotor and generator drive the first pump 6 operate electromotor 9 is carried out cooling and lubricating, simultaneously drive motor 13 and drive the second pump 18 to operate drive motor is carried out cooling and lubricating；
S4, it is in increasing journey pattern or during hybrid mode when coupling mechanism, coupling mechanism controller controls clutch 7 and engages, electromotor 1 drives the first pump 6 to operate electromotor 9 and clutch 7 are carried out cooling and lubricating, simultaneously drives motor 13 and drives the second pump 18 to operate drive motor 13 is carried out cooling and lubricating.
Owing to hydraulic module 38 is to be controlled by coupling mechanism controller, and second switch the 34, the 3rd switch the 35, first cooling oil passage, the second cooling oil passage 41 and the 6th pipeline 29 are integrated in hydraulic module 38, therefore, in the control method of the present embodiment, second switch 34 and the 3rd switch 35 are all subject to the control of coupling mechanism controller.
Specifically, as shown in above-mentioned table one, hereinafter it should be noted that, Second Threshold is more than first threshold, when automobile battery power is more than Second Threshold, coupling mechanism controller controls the 3rd switch 35 unlatching, 5th pipeline 28 is disconnected, clutch 7 separates, now coupling mechanism is for electric-only mode, electromotor 1 and electromotor 9 do not work, electromotor 9 and clutch 7 all do not need cooling and lubricating, first pump 6 does not need work, only drive motor 13 works, have only to cooling drive motor 13, drive motor 13 drives the second pump 18 to operate and passes through the second cooling oil passage 41 and drive motor 13 is carried out cooling and lubricating.
During when automobile battery power less than first threshold and Second Threshold, coupling mechanism controller coupling mechanism controller controls the 3rd switch 35 unlatching, 5th pipeline 28 is disconnected, clutch 7 separates, now coupling mechanism is in increasing journey pattern, electromotor 1 start drive electrical generators 9 generate electricity but be not involved in drive, electromotor 1 drives the first pump 6 to work and passes through the first the first branch road 39 cooling down oil passage and electromotor 9 is carried out cooling and lubricating, simultaneously drives motor 13 and drives mechanical pump 18 to operate drive motor 13 is carried out cooling and lubricating.
When automobile battery power is more than first threshold and less than Second Threshold, the 3rd switch 35 closedown is controlled by coupling mechanism controller, connect the 5th pipeline 28, clutch 7 is engaged, now coupling mechanism is in hybrid mode, electromotor 1, electromotor 9 participate in driving, electromotor 9 and clutch 7 are carried out cooling and lubricating by the second branch road 40 of the first branch road 39 and the first cooling oil passage that electromotor 1 drives the first pump 6 to work and passes through the first cooling oil passage, meanwhile, drive motor 13 drives the second pump 18 to work described drive motor 13 is carried out cooling and lubricating.
The control method of the present embodiment further comprises the steps of: the temperature obtaining cooling oil；When the temperature of cooling oil is higher than threshold value, cooling oil flows into the inside of coupling mechanism again after external refrigeration system cools down；When the temperature of cooling oil is lower than threshold value, cooling oil is in the inner loop of coupling mechanism.Specifically, 33 temperature judging cooling oil are switched by first, when the temperature of cooling oil is higher than threshold value, first switch 33 will be opened so that the first pipeline 31 and the second pipeline 32 are in channel status, cooling oil flows into oil cooler 30 by the first pipeline 31 and cools down, and flowed into the first cooling oil passage and the second cooling oil passage 41 by the second pipeline 32, and the inside entering coupling mechanism carries out cooling and lubricating；When the temperature of cooling oil is lower than threshold value, the first switch 33 closedown, cooling oil is circulated in the inside of coupling mechanism.
The control method of the present embodiment further comprises the steps of: the oil pressure size judging cooling oil；
When the oil pressure of cooling oil is higher than preset value, controls second switch and open, cooling oil unnecessary in the first pipeline 31 is back to oil supply system by oil return pipe 37；
When the oil pressure of cooling oil is lower than preset value, control second switch to open, the inside that cooling oil is delivered to coupling mechanism all through the first cooling oil passage and the second cooling oil passage 41 is carried out cool cycles with the internal structure to coupling mechanism, it is not necessary to the backflow of cooling oil.
To sum up, a kind of hybrid vehicle coupling mechanism cooling and lubricating system provided by the utility model, have the advantage that
1, cooling and the lubrication of coupling mechanism are integrated, its integrated level is high, can reducing the bulk of system and alleviate the weight of system unit, system adopts the power source that the second pump 18 and the first pump 6 cool down as oil lubrication, it is possible to saves development cost, reduce control difficulty；
2, the second pump 18 is coaxially arranged with the output shaft 14 of drive motor or jackshaft 11, its simple in construction, the weight of reduction space layout size and system, and decreases driving gear and the driven gear of mechanical pump, saves cost；
3, in electric-only mode, the second pump 18 disclosure satisfy that the cooling and lubricating requirement of drive motor, and the running speed of the second pump 18 regulates according to the running speed of drive motor 13, it is not necessary to individually the second pump 18 is controlled, can save and develop into；
4, under extended-range or hybrid mode, the first pump 6 can improve enough hydraulic pressure and flow and electromotor 1, electromotor 9 and clutch 7 are carried out cooling and lubricating, can meet the cooling and lubricating demand of different operating mode by regulating the rotating speed of the first pump 6；
5, this cooling and lubricating system cools down flow and the flow velocity of oil mainly through hydraulic module 38 distribution, then related components is cooled down, it is not necessary to arranges a lot of complicated pipeline on the housing of coupling mechanism, reduces the difficulty of processing of housing.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the premise without departing from this utility model know-why; can also making some improvement and replacement, these improve and replace and also should be regarded as protection domain of the present utility model.
Claims (9)
1. a hybrid vehicle coupling mechanism cooling and lubricating system, described coupling mechanism includes differential mechanism, electromotor and drive motor, described electromotor is coaxially connected with the power shaft of automobile engine, it is provided with clutch between described electromotor and electromotor, described drive motor is by actuating device and described clutch, differential mechanism connects, it is characterized in that, described actuating device includes jackshaft, first gear pair and the second gear pair, the output shaft of described drive motor is connected with described jackshaft by the first gear pair, described jackshaft is connected with described differential mechanism by the second gear pair；
Described cooling and lubricating system includes:
First pump；
Second pump, described second pump is mechanical pump, and described second pump is coaxially connected with the output shaft of described drive motor or described jackshaft, and along with drive motor operates；
First cooling oil passage, it is connected with described first pump, and cooling oil, under the driving of the first pump, is delivered to electromotor and clutch and electromotor and clutch are carried out cooling and lubricating by described first cooling oil passage；
Second cooling oil passage, it is connected with described second pump, and cooling oil, under the driving of described second pump, is delivered to drive motor and drive motor is carried out cooling and lubricating by described second cooling oil passage.
2. hybrid vehicle coupling mechanism cooling and lubricating system as claimed in claim 1, it is characterised in that described first pump is mechanical pump, and described first pump is connected with the power shaft of electromotor by the 3rd gear pair, and along with electromotor operates.
3. hybrid vehicle coupling mechanism cooling and lubricating system as claimed in claim 1, it is characterised in that described first pump is electrodynamic pump, the outside of coupling mechanism is located at by described first pump, and individually controls operating.
4. the hybrid vehicle coupling mechanism cooling and lubricating system as described in any one of claim 1-3, it is characterized in that, described cooling and lubricating system also includes hydraulic module, described first cooling oil passage and the second cooling oil passage are integrated in described hydraulic module, and described hydraulic module controls the size of the oily trend of cooling and flow according to the temperature that the mode of operation of coupling mechanism and coupling mechanism are internal.
5. the hybrid vehicle coupling mechanism cooling and lubricating system as described in any one of claim 1-3, it is characterized in that, described cooling and lubricating system also includes being located at the oil supply mechanism bottom described coupling mechanism, described oil supply mechanism includes oil sump and nutsch filter, the oil-out place of described oil sump is located at by described nutsch filter, and described nutsch filter is connected with described first pump, the second pump.
6. the hybrid vehicle coupling mechanism cooling and lubricating system as described in any one of claim 1-3, it is characterised in that described cooling and lubricating system also includes being located at the oil cooling system outside described coupling mechanism；
Described oil cooling system includes oil cooler and the first switch；Described oil cooler is connected with described first pump, the second pump by the first pipeline, and described oil cooler is connected with described first cooling oil passage, the second cooling oil passage by the second pipeline；
Described first switch is located on described first pipeline and the second pipeline, is used for detecting the temperature of cooling oil, and realizes the break-make control of the first pipeline and the second pipeline according to the temperature cooling down oil.
7. hybrid vehicle coupling mechanism cooling and lubricating system as claimed in claim 6, it is characterised in that described cooling and lubricating system also includes the 3rd pipeline, the 4th pipeline and the 5th pipeline；
Connecting with described 3rd pipeline, the first pipeline after described 4th pipeline and the 5th pipeline parallel connection, the other end of described 3rd pipeline is oil-in, and the other end of described first pipeline is connected with described oil cooler；
Described first pump is connected with described 4th pipeline, and described second pump is connected with described 5th pipeline.
8. hybrid vehicle coupling mechanism cooling and lubricating system as claimed in claim 7, it is characterized in that, described cooling and lubricating system also includes the 6th pipeline, one end of described 6th pipeline is connected with the oil-out of described 4th pipeline, the 5th pipeline, the other end of described 6th pipeline is connected with described clutch, and the motion for the piston for described clutch provides oil pressure；
Described 6th pipeline is provided with second switch, and described second switch is for controlling break-make and the trend of the 6th pipeline.
9. hybrid vehicle coupling mechanism cooling and lubricating system as claimed in claim 6, it is characterised in that described first pipeline is provided with the 3rd switch, and described 3rd switch is for controlling the size of the oil pressure of the first pipeline；Described 3rd switch is connected to the oil return pipe of unnecessary cold oil return.
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| CN201620150396.2U CN205395988U (en) | 2016-02-29 | 2016-02-29 | Hybrid vehicle coupling mechanism cooling and lubrication system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108128135A (en) * | 2017-12-20 | 2018-06-08 | 东风汽车集团有限公司 | A kind of power assembly arrangement of hybrid vehicle |
| CN108944409A (en) * | 2018-06-12 | 2018-12-07 | 广州汽车集团股份有限公司 | Novel hybrid coupling mechanism and hybrid power control method, device |
| TWI643768B (en) * | 2016-08-12 | 2018-12-11 | 日商豐田自動車股份有限公司 | Hybrid vehicle |
| CN110861596A (en) * | 2018-08-27 | 2020-03-06 | 广州汽车集团股份有限公司 | Method, device, control device and storage medium for regulating main oil pressure |
| CN113669435A (en) * | 2021-07-15 | 2021-11-19 | 东风汽车集团股份有限公司 | Hybrid drive system's lubricated cooling system and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI643768B (en) * | 2016-08-12 | 2018-12-11 | 日商豐田自動車股份有限公司 | Hybrid vehicle |
| CN108128135A (en) * | 2017-12-20 | 2018-06-08 | 东风汽车集团有限公司 | A kind of power assembly arrangement of hybrid vehicle |
| CN108944409A (en) * | 2018-06-12 | 2018-12-07 | 广州汽车集团股份有限公司 | Novel hybrid coupling mechanism and hybrid power control method, device |
| CN110861596A (en) * | 2018-08-27 | 2020-03-06 | 广州汽车集团股份有限公司 | Method, device, control device and storage medium for regulating main oil pressure |
| CN110861596B (en) * | 2018-08-27 | 2021-04-06 | 广州汽车集团股份有限公司 | Method, device, control device and storage medium for regulating main oil pressure |
| CN113669435A (en) * | 2021-07-15 | 2021-11-19 | 东风汽车集团股份有限公司 | Hybrid drive system's lubricated cooling system and vehicle |
| CN113669435B (en) * | 2021-07-15 | 2024-01-16 | 东风汽车集团股份有限公司 | Lubricating and cooling system of hybrid power type driving system and vehicle |
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