CN105805285B - Gearbox lubrication method and speed changing box lubricating system suitable for hybrid vehicle - Google Patents
Gearbox lubrication method and speed changing box lubricating system suitable for hybrid vehicle Download PDFInfo
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- CN105805285B CN105805285B CN201410856550.3A CN201410856550A CN105805285B CN 105805285 B CN105805285 B CN 105805285B CN 201410856550 A CN201410856550 A CN 201410856550A CN 105805285 B CN105805285 B CN 105805285B
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Abstract
The invention discloses a kind of gearbox lubrication method suitable for hybrid vehicle, automobile includes electrodynamic pump and mechanical pump.The operating mode of automobile includes EV mode and hybrid electric vehicle mode.Method is the following steps are included: S11: controller judges the operating mode of automobile；S12: under electric-only mode, controller controls electrodynamic pump according to the temperature of lubricating oil with different power to gearbox lubrication；And S13: under hybrid mode, controller closes electrodynamic pump, and mechanical pump starts with engine start to the gearbox lubrication.Above-mentioned gearbox lubrication method mode according to locating for automobile starting electrodynamic pump or working machine pump, realize electrodynamic pump and mechanical pump in the division of labor of different mode, meanwhile, the above method controls electronic revolution speed according to lubricating oil temperature, and then improves lubricating efficiency.The invention also discloses a kind of speed changing box lubricating systems.
Description
Technical field
The present invention relates to automotive engineering, more particularly, to a kind of gearbox lubrication method suitable for hybrid vehicle and
A kind of speed changing box lubricating system.
Background technique
The mode of oil jet lubrication at present is mainly used in new-energy automobile, including pure electric automobile and hybrid vehicle,
Using the mechanical pump connected firmly with engine output shaft or independently of transmission system electrodynamic pump as power source.It is mixed in severe
In power vehicle speed changer, if vehicle is in EV mode (pure electric vehicle mould individually using mechanical pump is connected firmly with engine output shaft
Formula) under engine it is inoperative, the flowing passive delivery of lubricating oil, if individually use electric drive oil pump, need to select larger
Motor greatly increases system weight.
Moreover, driven type oil pump drives oil jet lubrication system to lack to system mode in the mode of above-mentioned oil jet lubrication
Monitoring, since lubricating system payload size changes with lubricating oil viscosity, and lubricating oil viscosity varies with temperature, electricity
Motivation can not judge that the band of motor carries situation and gives drive motor with perseverance due to lacking system mode feedback, controller,
It causes given insufficient, the small load of heavy load to give excessive situation, increases system useless power consumption.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention needs to provide one
Gearbox lubrication method and a kind of speed changing box lubricating system of the kind suitable for hybrid vehicle.
A kind of gearbox lubrication method suitable for hybrid vehicle, the automobile includes gearbox, lubricating oil, electronic
Pump, mechanical pump, temperature sensor and controller, the lubricating oil are contained in the gearbox, the electrodynamic pump and the machine
Tool pumps the bottom and top for being respectively communicated with the gearbox, for the lubricating oil to be sucked out and add from the bottom of the gearbox
From the top spray of the gearbox with for the gearbox lubrication, the temperature sensor is for sensing the lubricating oil after pressure
Temperature, the described method comprises the following steps:
S11: the controller judges that the operating mode of the automobile, the operating mode include electric-only mode and mixing
Dynamic mode；
S12: under the electric-only mode, the controller controls the electrodynamic pump according to the temperature of the lubricating oil
With different power to the gearbox lubrication；And
S13: under the hybrid mode, the controller closes the electrodynamic pump, and the mechanical pump is with engine
Start and starts to the gearbox lubrication.
Above-mentioned gearbox lubrication method mode according to locating for automobile starting electrodynamic pump or working machine pump, realize electronic
The division of labor of pump and mechanical pump on the different mode locating for hybrid vehicle, avoids mechanical pump and electrodynamic pump works at the same time two-way
Lubricating oil flow interferes with each other, and also avoids the frequent start-stop of electrodynamic pump, meanwhile, above-mentioned gearbox lubrication method is according to lubrication
The revolving speed of the temperature control electrodynamic pump of oil avoids given insufficient, the small load of heavy load and gives excessive situation, reduces system
Useless power consumption, and then improve lubricating efficiency.In addition, loading for starting or run because of the electrodynamic pump is direct and lubricating oil
Viscosity is related, and the temperature of lubricating oil directly affects lubricating oil viscosity, and temperature is smaller, and viscosity is bigger, load therewith it is bigger, then
Control that the power that the electrodynamic pump needs the gearbox lubrication is bigger, and temperature is bigger, viscosity is smaller, load therewith it is smaller,
So control that the power that the electrodynamic pump needs the gearbox lubrication is smaller, for this purpose, the temperature for sensing the lubricating oil
The sensor of degree, the controller control the electrodynamic pump according to the temperature of the lubricating oil with different power to the change
Fast case lubrication.
In one embodiment, the temperature of the lubricating oil and the electrodynamic pump are negative to the power of the gearbox lubrication
Correlation, as lubricating oil temperature increases, the controller controls the electrodynamic pump and gradually subtracts to the power of the gearbox lubrication
It is small.
In one embodiment, when the electrodynamic pump starts, with the increase of the lubricating oil temperature, the control
The duty ratio that device control starts electrodynamic pump is gradually reduced.In one embodiment, in the electrodynamic pump continuous service, with
The duty ratio of the increase of the lubricating oil temperature, the controller control operation electrodynamic pump is gradually reduced.
In one embodiment, before the automobile meets driving conditions, the controller controls the electrodynamic pump
Starting is to the gearbox lubrication；
After the electrodynamic pump continuous service preset time, the automobile is still unsatisfactory for the driving conditions, the controller
It controls the electrodynamic pump to close, wherein the driving conditions are as follows: the gear of the automobile is the speed of non-park position and the automobile
It is not zero.
A kind of speed changing box lubricating system suitable for hybrid vehicle, including gearbox, lubricating oil, electrodynamic pump, machinery
Pump, temperature sensor and controller；
The lubricating oil is contained in the gearbox, and the electrodynamic pump and the mechanical pump are respectively communicated with the gearbox
Bottom and top, for after the lubricating oil is sucked out and is pressurizeed from the bottom of the gearbox from the top of the gearbox
Spray thinks the gearbox lubrication；
The temperature sensor is used to sense the temperature of the lubricating oil；
The controller is used to judge the operating mode of the automobile, and the operating mode includes electric-only mode and mixing
Dynamic mode；
Under the electric-only mode, the controller controls the electrodynamic pump according to the temperature of the lubricating oil with not
Same power is to the gearbox lubrication；
Under the hybrid mode, the controller closes the electrodynamic pump, and the mechanical pump is with engine start
And start to the gearbox lubrication.
Because the electrodynamic pump starts or the load of operation is directly related with lubricating oil viscosity, the temperature of lubricating oil is direct
Influence lubricating oil viscosity, temperature is smaller, and viscosity is bigger, load therewith it is bigger, then controlling the electrodynamic pump to the speed change
Case lubrication need power it is bigger, temperature is bigger, and viscosity is smaller, load therewith it is smaller, then controlling the electrodynamic pump to described
Gearbox lubrication need power it is smaller, for this purpose, for sense the lubricating oil temperature sensor, the controller according to
The temperature of the lubricating oil controls the electrodynamic pump with different power to the gearbox lubrication.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention is from combining in description of the following accompanying drawings to embodiment by change
It obtains obviously and is readily appreciated that, in which:
Fig. 1 is the module signal of the speed changing box lubricating system suitable for hybrid vehicle of better embodiment of the present invention
Figure.
Fig. 2 is the structural schematic diagram of the speed changing box lubricating system of Fig. 1.
Fig. 3 is the process signal of the gearbox lubrication method suitable for hybrid vehicle of better embodiment of the present invention
Figure.
Fig. 4 is another stream of the gearbox lubrication method suitable for hybrid vehicle of better embodiment of the present invention
Journey schematic diagram.
Fig. 5 is another stream of the gearbox lubrication method suitable for hybrid vehicle of better embodiment of the present invention
Journey schematic diagram.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or hidden conjunction indicates the quantity of indicated technical characteristic.Define as a result, " the
The feature of one ", " second " can express or it is hidden include one or more feature with closing.In description of the invention
In, " multiple " are meant that two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected or can be in communication with each other；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements or the interaction relationship of two elements.For the ordinary skill of this field
For personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Following disclosure provides many different embodiments or example is used to realize different structure of the invention.In order to
Simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
FIG. 1 to FIG. 2 is please referred to, the speed changing box lubricating system 100 of better embodiment of the present invention is suitable for hybrid power vapour
Vehicle.The operating mode of hybrid vehicle includes electric-only mode (electric vehicle, the EV mould of driving motor driving
Formula) and simultaneously by driving motor and engine-driven hybrid mode (hybrid-electric vehicle, HEV mould
Formula).The system 100 include gearbox 11, lubricating oil 12, electrodynamic pump 13, control unit of engine (ECM) 14, mechanical pump 15,
Temperature sensor 18 and controller.Lubricating oil 12 is contained in gearbox 11.Electrodynamic pump 13 and be connected to gearbox 11 bottom and
Top.ECM14 is for acquiring speed signal, EPB parking signal and vehicle operating mode signal.Mechanical pump 15 is connected to gearbox
11 bottom and top.Mechanical pump 15 is connect with the engine of automobile, is started for the starting with engine with by lubricating oil
12 be sucked out and pressurize from the bottom of gearbox 11 after from the top spray of gearbox 11 to lubricate gearbox 11.
Because the electrodynamic pump 13 starts or the load of operation directly, the temperature of lubricating oil 12 related with the viscosity of lubricating oil 12
Degree directly affects the viscosity of lubricating oil 12, and temperature is smaller, and viscosity is bigger, load therewith it is bigger, then controlling the electrodynamic pump 13
To the gearbox 11 lubrication need power it is bigger, temperature is bigger, and viscosity is smaller, load therewith it is smaller, then control described in
The power that electrodynamic pump 13 needs the gearbox 11 lubrication is smaller.For this purpose, the temperature of the temperature for sensing the lubricating oil 12
Sensor 18 is spent, the controller controls the electrodynamic pump 13 according to the temperature of the lubricating oil 12 with different power to institute
State the lubrication of gearbox 11.It formulates with the control strategy of the starting point of the loading condition of electrodynamic pump 13, the electrodynamic pump 13 can be prevented
Load capacity is insufficient or the appearance of the excessive caused extreme case of starting current.
Specifically, the temperature sensor 18 is used to sense the temperature of the lubricating oil 12.The controller is for judging
The operating mode of the automobile.Under the electric-only mode, the controller is used for the temperature according to the lubricating oil 12, control
The electrodynamic pump 13 is made to lubricate the gearbox 11 with different power.Under the hybrid mode, the controller
For closing the electrodynamic pump 13, the mechanical pump 15 starts with the starting of engine lubricates the gearbox 11.
In one embodiment, in one embodiment, the temperature of the lubricating oil is with the electrodynamic pump to described
The power of gearbox lubrication is negatively correlated, and as lubricating oil temperature increases, the controller controls the electrodynamic pump to the speed change
The power of case lubrication is gradually reduced.Specifically, the temperature of the lubricating oil 12 is lower, institute's controller control the electrodynamic pump 13 with
Biggish power lubricates the gearbox 11.The temperature of the lubricating oil 12 is higher, and institute's controller controls the electrodynamic pump 13
The gearbox 11 is lubricated with lesser power.
The electrodynamic pump 13 is the power and the busbar voltage of electrodynamic pump 13 and the starting of electrodynamic pump 13 that gearbox 11 lubricates
Or the duty ratio of operation is related.
In one embodiment, the temperature sensor 18 detects 12 temperature of lubricating oil；If the lubricating oil
12 temperature is started less than the first preset temperature, the controller control electrodynamic pump 13 with the first duty ratio, at this time lubricating oil 12
Temperature is lower, in order to guarantee 13 normal starting of electrodynamic pump, electrodynamic pump 13 is needed to play maximum capacity for starting, at this time with maximum
Duty ratio started, can obtain maximum starting current, guarantee normal starting.
If 12 temperature of lubricating oil is less than the second preset temperature and when being greater than the first preset temperature, controller judgement
The busbar voltage of the electrodynamic pump 13, if the busbar voltage of electrodynamic pump 13 is less than default busbar voltage, the controller control
Electrodynamic pump 13 is with the starting of the second duty ratio, if the busbar voltage of electrodynamic pump 13 is greater than default busbar voltage, controller control electricity
Dynamic pump 13 is with the starting of third duty ratio.In the temperature range of some lubricating oil, the electrodynamic pump 13 is loading identical feelings
It is started under condition, busbar voltage is higher, can be started with lesser duty ratio at this time, prevent excessive starting current to electrodynamic pump
13 impact.
If 12 temperature of lubricating oil is less than third preset temperature and is greater than the second preset temperature, controller judgement
The busbar voltage of the electrodynamic pump 13, if the busbar voltage of electrodynamic pump 13 is less than default busbar voltage, the controller control
Electrodynamic pump 13 is with the starting of the 4th duty ratio, if the busbar voltage of electrodynamic pump 13 is greater than default busbar voltage, controller control electricity
Dynamic pump 13 is with the starting of the 5th duty ratio.
If 12 temperature of lubricating oil is greater than third preset temperature, the busbar voltage of the electrodynamic pump 13 is judged,
If the busbar voltage of electrodynamic pump 13 is less than default busbar voltage, the controller control electrodynamic pump 13 with the 6th duty compared with
Dynamic, if the busbar voltage of electrodynamic pump 13 is greater than default busbar voltage, controller controls electrodynamic pump 13 with the starting of the 7th duty ratio.
Wherein, first preset temperature to the third preset temperature gradually increases, first duty ratio to the 7th
Duty ratio is gradually reduced.
During the electrodynamic pump 13 constantly lubricates for gearbox 11, the temperature sensor 18 detects the profit
12 temperature of lubricating oil；If 12 temperature of lubricating oil is less than the 4th preset temperature, the controller control electrodynamic pump 13 is with the 8th
Duty ratio operation；
If 12 temperature of lubricating oil is less than the 5th preset temperature and when being greater than four preset temperatures, controller judgement
The busbar voltage of the electrodynamic pump 13, if the busbar voltage of electrodynamic pump 13 is less than default busbar voltage, the controller control
Electrodynamic pump 13 is with the operation of the 9th duty ratio, if the busbar voltage of electrodynamic pump 13 is greater than default busbar voltage, controller control electricity
Dynamic pump 13 is with the operation of the tenth duty ratio.
If 12 temperature of lubricating oil is less than the 6th preset temperature and when being greater than five preset temperatures, controller judgement
The busbar voltage of the electrodynamic pump 13, if the busbar voltage of electrodynamic pump 13 is less than default busbar voltage, the controller control
Electrodynamic pump 13 is with the operation of the 11st duty ratio, if the busbar voltage of electrodynamic pump 13 is greater than default busbar voltage, controller control
Electrodynamic pump 13 is with the operation of the 12nd duty ratio.
If 12 temperature of lubricating oil is greater than the 6th preset temperature, controller judges the bus electricity of the electrodynamic pump 13
Pressure, if the busbar voltage of electrodynamic pump 13 is less than default busbar voltage, the controller control electrodynamic pump 13 is with the 13rd duty
Than operation, if the busbar voltage of electrodynamic pump 13 is greater than default busbar voltage, controller controls electrodynamic pump 13 with the 14th duty
Than operation.
Wherein, the 4th preset temperature to the 6th preset temperature gradually increases, the 8th duty ratio to the tenth
Four duty ratios are gradually reduced.
Because lubricating oil 12 during lubricating repeatedly, temperature can be increased accordingly, in embodiment provided by the invention
In, the 4th preset temperature is greater than third preset temperature.
In one embodiment, before the automobile meets driving conditions, the controller controls the electrodynamic pump
13 startings are to lubricate the gearbox 11.
After the 13 continuous service preset time of electrodynamic pump, the automobile is still unsatisfactory for the driving conditions, the control
Device controls the electrodynamic pump 13 and closes, wherein the driving conditions are as follows: the gear of the automobile is non-park position and the automobile
Speed is not zero.Specifically, the controller includes drive controller (TCU) 20 and Oil pump electrical machinery controller 21, the transmission
Controller 20 is used to judge the operating mode of the automobile.Under electric-only mode, the drive controller 20 is used for according to institute
The temperature of lubricating oil 12 is stated to start after the electrodynamic pump 13 and by the Oil pump electrical machinery by the Oil pump electrical machinery controller 21
Controller 21 controls the revolving speed of the electrodynamic pump 13, and under hybrid mode, and the drive controller 20 is for passing through institute
It states Oil pump electrical machinery controller 21 and closes the electrodynamic pump 13, the mechanical pump 15 starts with engine start to the gearbox
11 lubrications.
Control unit of the TCU20 as system, driving unit of the Oil pump electrical machinery controller 21 as system, electrodynamic pump 13 are
The execution unit of system strategy.TCU20 is needed from ECM14 acquisition speed signal, EPB parking signal and vehicle operating mode letter
Number.The temperature that temperature sensor 18 measures transmission oil 12 is simultaneously transmitted to TCU20 processing, to judge that electrodynamic pump 13 is current
Loading condition.The signal interaction of Oil pump electrical machinery controller 21 and TCU20 realize that wherein motor enable signal is used by 3 rigid lines
It is high/low level signal in the starting/stopping of control electrodynamic pump 13；Motor speed Setting signal is fixed for frequency, and duty ratio becomes
The pwm signal of change；Speed feedback signal is fixed for duty ratio, the pwm signal of frequency variation.Execution unit (including passed without position
The electrodynamic pump 13 of sensor three-phase direct-current brushless motor) with the connection of driving unit (Oil pump electrical machinery controller 21) be and motor three-phase
The triple line of windings in series realizes the rotational speed regulation of electrodynamic pump 13 by the control to three-phase voltage, and then adjusts electrodynamic pump 13
Load capacity and lubricating pipe flow.
In present embodiment, Oil pump electrical machinery controller 21 is connect for controlling electrodynamic pump 13 for lubricating oil 12 with electrodynamic pump 13
Go out after being sucked out and pressurize from the bottom of gearbox 11 from the top spray of gearbox 11 for the lubrication of gearbox 11.Electrodynamic pump 13 wraps
Include oil pump 131 and motor 132.Oil pump electrical machinery controller 21 is connect with motor 132, with control motor 132 starting, close and turn
Speed.
The bottom of gearbox 11 is formed with first interface 111 and second interface 112, and the top of gearbox 11 is formed with oil return
Interface 113, the system 100 further include the first flowline 16, the second flowline 17, oil return pipe 18 and check valve 19, and first goes out
Oil pipe 16 connects first interface 111 and check valve 19, and the second flowline 17 connects second interface 112 and check valve 19, oil return pipe
18 connection oil return interfaces 113 and check valve 19, electrodynamic pump 13 are arranged on the first flowline 16, and the setting of mechanical pump 15 goes out second
On oil pipe 17, the lubricating oil 12 of first flowline 16 enters the second flowline when check valve 19 is used to prevent mechanical pump 15 inactive
17.Check valve 19 be also possible to prevent electrodynamic pump 13 it is inactive when into the second flowline 17 lubricating oil 12 enter the first flowline
16。
In other words, check valve 19 can prevent automotive service in electric-only mode, and the second flowline 17 is due to machinery
Pump 15 it is inactive without oil pressure cause lubricating oil 12 by after 13 oil suction of electrodynamic pump from 16 oil return of the first flowline to the second fuel sucking pipe
17。
The system 100 further includes oil cooler 1a, and oil cooler 1a is arranged on oil return pipe 18, and it is cold that oil cooler 1a has high temperature concurrently
But with low-temperature heat function.In actual use, the transmission gear phase mutual friction in gearbox 11 will be such that 12 temperature of lubricating oil rises,
And high oil temperature can make 12 viscosity of lubricating oil too low, influence lubricant effect.
The system 100 further includes filter 1b, and filter 1b is arranged on oil return pipe 18, is used for filtering lubricant oil 12.
Transmission gear is also easy to produce metal fragment in running in stage, and therefore, filtering lubricant oil 12 has the service life for improving transmission gear
Important role.
Mechanical pump 15 further includes fuel-displaced oil circuit 151, and the gearshift or clutch hydraulic system of fuel-displaced oil circuit 151 and automobile connect
It connects, for providing power to gearshift or clutch hydraulic system.In this way, not only can provide power but also can avoid high engine speeds fortune
Lubricating loop oil pressure is excessively high when row.
In addition, the system 100 further includes spray head 1e, spray head 1e is arranged in gearbox 11, and is located at top simultaneously
It connect with oil return interface 113 with spray lubrication oil 12.
Referring to Fig. 3, the gearbox lubrication method of better embodiment of the present invention the following steps are included:
S11: the controller judges that the operating mode of the automobile, the operating mode include electric-only mode and mixing
Dynamic mode；
S12: under the electric-only mode, the controller controls described electronic according to the temperature of the lubricating oil 12
Pump 13 lubricates the gearbox 11 with different power；And
S13: under the hybrid mode, the controller closes the electrodynamic pump 13, and the mechanical pump 15 is with hair
Motivation starts and starts and lubricate the gearbox 11.
Above-mentioned gearbox lubrication method mode according to locating for automobile starting electrodynamic pump or working machine pump, realize electronic
The division of labor of pump 13 and mechanical pump 15 in the mode locating for hybrid vehicle, avoids mechanical pump 15 and electrodynamic pump 13 works at the same time
Two-way lubricating oil flow interferes with each other, and also avoids the frequent start-stop of electrodynamic pump 13, meanwhile, above-mentioned gearbox lubrication method root
According to the revolving speed of the temperature control electrodynamic pump 13 of lubricating oil 12, avoids given insufficient, the small load of heavy load and gives excessive situation,
Reduce the useless power consumption of system, and then improves lubricating efficiency.
It is appreciated that above-mentioned steps S11~S13 can be in ON grades in automobile by above system 100, automobile starting that is to say
After start to execute realization.In addition, the starting of electrodynamic pump 13 and closing refer mainly to the starting and closing of motor 132.
In one embodiment, Fig. 4 please be join, in step s 12, the temperature of the lubricating oil 12 and the electrodynamic pump 13
Negatively correlated to the power of the gearbox 11 lubrication, as 12 temperature of lubricating oil increases, the controller controls the electrodynamic pump
The power that 13 pairs of gearboxes 11 lubricate is gradually reduced.Specifically, the temperature of the lubricating oil 12 is lower, the controller control
It makes the electrodynamic pump 13 to lubricate the gearbox 11 with biggish power, the temperature of the lubricating oil 12 is higher, the control
Device is controlled the electrodynamic pump 13 and is lubricated with lesser power the gearbox 11.The low lubricating oil 12 of temperature is as a result, with larger
Power start electrodynamic pump 13, the case where avoiding 13 starting difficulty of electrodynamic pump appearance.
Specifically, step S12 the following steps are included:
S121: the controller judges the temperature T of the lubricating oil 12 whether less than the first preset temperature T11, if then
S122 is entered step, if otherwise entering step S123；
S122: the controller starts the electrodynamic pump 13 with the first duty ratio Dmax；
S123: the controller judges whether the temperature T of the lubricating oil 12 is greater than the first preset temperature T11 and small
In the second preset temperature T12, if then entering step S124, if otherwise entering step S127；
S124: the controller judges whether busbar voltage is less than default busbar voltage U1, if then entering step S125,
If otherwise entering step S126；
S125: the controller starts the electrodynamic pump 13 with the second duty ratio D11, and the second duty ratio D11 compares institute
It is small to state the first duty ratio Dmax；
S126: the controller starts the electrodynamic pump 13 with third duty ratio D12, and the third duty ratio d12 compares institute
It is small to state the second duty ratio D11；
S127: the controller judges whether the temperature T of the lubricating oil 12 is greater than the second preset temperature T12 and small
In third preset temperature T13, if then entering step S128, if otherwise entering step S131；
S128: the controller judges whether the busbar voltage is less than the first voltage U1, if then entering step
S129, if otherwise entering step S130；
S129: the controller starts the electrodynamic pump 13 with the 4th duty ratio D13, and the 4th duty ratio D13 compares institute
It is small to state third duty ratio D12；
S130: the controller starts the electrodynamic pump 13 with the 5th duty ratio D14, and the 5th duty ratio D14 compares institute
It is small to state the 4th duty ratio D13；
S131: the controller judges whether the busbar voltage is less than the default busbar voltage U1, if then entering
Step S132, if otherwise entering step S133；
S132: the controller starts the electrodynamic pump 13 with the 6th duty ratio D15, and the 6th duty ratio D15 compares institute
It is small to state the 5th duty ratio D14；And
S133: the controller starts the electrodynamic pump 13 with the 7th duty ratio D16, and the 7th duty ratio D16 compares institute
It is small to state the 6th duty ratio D15.
Above-mentioned steps can be regarded as the start-up strategy flow chart of electrodynamic pump 13 (Oil pump electrical machinery 132).For lubricating pipe knot
For the lubricating system that structure arrangement has determined, the variable for influencing payload size is the viscosity of lubricating oil 12, and lubricating oil 12
Viscosity is directly related to the temperature of lubricating oil 12.Under same load (i.e. synthermal under), the busbar voltage (distribution of electrodynamic pump 13
To the voltage of electrodynamic pump) it is bigger, the starting current of Oil pump electrical machinery 132 is bigger, and (i.e. pwm pulse is wide for the duty ratio that adjusting starts
Degree modulation) starting current under identical busbar voltage can be limited.The formulation of the start-up strategy of electrodynamic pump 13 is with Oil pump electrical machinery 132
Loading condition starting point, to prevent 132 load capacity of Oil pump electrical machinery is insufficient or starting current is excessive extreme case
Occur, 12 temperature T of transmission oil is judged before fuel primer pump motor 132, starts point four temperature sections, i.e. T <
T11, T11 < T < T12, T12 < T < T13, T > T13, and the voltage of low tension battery (busbar voltage) is taken into account,
Duty ratio, i.e. Dmax, D11, D12, D13, D14, D15, D16, this seven duty ratios are started with 7 different Oil pump electrical machineries 132
Size successively reduce, i.e., when the busbar voltage of the described electrodynamic pump 13 is larger, the controller control the electrodynamic pump 13 with compared with
Big power lubricates the gearbox 11；When the busbar voltage of the electrodynamic pump 13 is smaller, the controller controls the electricity
Dynamic pump 13 lubricates the gearbox 11 with lesser power.Watt level is positively correlated with duty ratio size.On it is appreciated that
The unit for stating temperature is degree Celsius (DEG C), and the unit of voltage is volt (V).
It please join Fig. 3, the method further comprises the steps of: between step S11 and step S12
S14: the controller judge the electrodynamic pump 13 pump whether continuous service, if then entering step S15, if otherwise
Enter step S12；
S15: controller electrodynamic pump 13 according to the gear of the automobile and speed closing or continuous service.
Specifically, TCU20 judge the electrodynamic pump 13 pump whether continuous service, and control oil pump electric machine controller 31 is closed
Or electrodynamic pump 13 described in continuous service.When the operating mode of automobile is electric-only mode, sometimes due to the maloperation for the person of making is driven,
The signal for being switched to electric-only mode can be retransmitted.Therefore, the controller is judging 13 continuous service of electrodynamic pump
In the case of, it can avoid sending signal again and start electrodynamic pump 13, cause system resource waste, and the above-mentioned maloperation the case where
Under, this method can also be directly entered the continuous service strategy of electrodynamic pump 13, improve the error correction rate of method.
The method further comprises the steps of: between step S12 and step S15
S16: the controller judges whether the continuous working period of the electrodynamic pump 13 is greater than first time t1, if then
S15 is entered step, if otherwise repeating step S16.
That is, before the automobile meets driving conditions, the controller controls the electrodynamic pump 13 before step S15
Starting is to lubricate the gearbox 11.Since automobile is by other operating modes incision electric-only mode or in electric-only mode
It is corresponding with driving motor quick response down after upper ON grades of electricity, consider oil pressure settling time, avoids speed changer lubrication 12 not in time
Increasing on the temperature of gear pair influences, it is specified that continuous service is greater than first time t1 (preset time) second after electrodynamic pump 13 starts
Afterwards, then the operation reserve of electrodynamic pump 13 is executed, this makes the execution of method more acurrate.
Please join Fig. 3, step S15 the following steps are included:
S151: the controller judges whether the automobile gears are that parking is kept off and whether the speed of the automobile is zero,
If then entering step S152, if it is not, then entering step S153；
S152: the controller judges whether the automobile has run over, if then entering step S154, if otherwise entering
Step S155；
S153: electrodynamic pump 13 described in the controller continuous service；
S154: electrodynamic pump 13 described in the controller continuous service；
S155: the controller closes the electrodynamic pump 13；
S156: the controller judges whether the continuous working period of the electrodynamic pump 13 is greater than the second time t2, if
S157 is then entered step, if otherwise repeating step S156；
S157: the controller judges whether the automobile gears are that parking is kept off and whether the speed of the automobile is zero,
If then entering step S155, if otherwise entering step S153.
Parking brake (including electronics parking brake, mechanical parking brake etc.) is pulled up the foundation as automobile gears for parking gear.
In above-mentioned steps S152, the TCU20 of the controller is by judging whether ON grades of electric cars have speed not on this
Judge whether automobile exercised at the time of being 0.If automobile was not exercised, motor 132 is closed, the energy has been saved.
That is in above-mentioned steps S15, after 13 continuous service first time t1 seconds (preset time) of electrodynamic pump, the vapour
Vehicle is still unsatisfactory for the driving conditions, and the controller controls the electrodynamic pump 13 and closes, wherein the driving conditions are as follows: the automobile
Gear be that the speed of non-park position and the automobile is not zero.If the automobile gears are the speed of parking gear and the automobile
It is zero (being unsatisfactory for driving conditions) and at the time of there there are not for 0 ON grades of electric car speed on this, then entered for the second time time t2 second
Timing prevents vehicle from of short duration stopping/continually closing/fuel primer pump motor 132 when driving frequent.Gear be park position and
Speed is 0, to Oil pump electrical machinery 132 execute the second time time t2 second continuous service strategy after, then judge automobile gears whether be
Park position and whether speed is 0, the judgement as vehicle long-time stagnation of movement.
Specifically, Fig. 5, step S153 or step S154 please be join the following steps are included:
S402: the controller judge the temperature of the lubricating oil 12 whether less than the 4th preset temperature T21, if then into
Enter step S403, if otherwise entering step S404；
S403: the controller runs the electrodynamic pump 13 with the 8th duty ratio Dmax；
S404: the controller judges whether the temperature of the lubricating oil 12 is greater than the 4th preset temperature T21 and small
In the 5th preset temperature T22, if then entering step S405, if otherwise entering step S408；
S405: the controller judges whether busbar voltage is less than default busbar voltage U1, if then entering step S406,
If otherwise entering step S407；
S406: the controller runs the electrodynamic pump 13 with the 9th duty ratio, and the 9th duty ratio D21 is than described the
Eight duty ratio Dmax are small；
S407: the controller runs the electrodynamic pump 13 with the tenth duty ratio, and the tenth duty ratio D22 is than described the
Nine duty ratio D21 are small；
S408: the controller judges whether the temperature of the lubricating oil 12 is greater than the 5th preset temperature T22 and small
In the 6th preset temperature T23, if then entering step S409, if otherwise entering step S412；
S409: the controller judges whether the busbar voltage is less than the default busbar voltage U1, if then entering
Step S410, if otherwise entering step S411；
S410: the controller runs the electrodynamic pump 13, the 11st duty ratio D23 with the 11st duty ratio D23
It is smaller than the tenth duty ratio D22；
S411: the controller runs the electrodynamic pump 13, the 12nd duty ratio D24 with the 12nd duty ratio D24
It is smaller than the 11st duty ratio D23；
S412: the controller judges whether the busbar voltage is less than the default busbar voltage U1, if then entering
Step S413, if otherwise entering step S414；
S413: the controller runs the electrodynamic pump 13, the 13rd duty ratio D25 with the 13rd duty ratio D25
It is smaller than the 12nd duty ratio D24；
S414: the controller runs the electrodynamic pump 13, the 14th duty ratio D26 with the 14th duty ratio D26
It is smaller than the 13rd duty ratio D25.
Above-mentioned steps can be regarded as the operation reserve flow chart of Oil pump electrical machinery 132.The lubricating oil 12 of speed changer is giving gear
While pair provides lubrication, the heat that gear pair engagement generates also is taken away, cooling gear is played the role of.Gearbox oil cooler energy
Enough play the role of adjusting lubricating oil temperature 12, to avoid vehicle dynamical system from becoming under heavy load operating condition because of long-term work work
Fast device gear pair temperature rise is excessively high, under the premise of meeting speed changer lubrication demand, with the temperature of gear-box lubricating oil 12 and
132 busbar voltage of Oil pump electrical machinery is input variable, matches 132 input voltage of Oil pump electrical machinery, realizes the reduction of 100 power consumption of system.
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the invention.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
While embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principle of the present invention and objective and become
Type, the scope of the present invention are defined by the claims and their equivalents.
Claims (8)
1. a kind of gearbox lubrication method suitable for hybrid vehicle, which is characterized in that the automobile includes gearbox, profit
Lubricating oil, electrodynamic pump, mechanical pump, temperature sensor and controller, the lubricating oil are contained in the gearbox, the electrodynamic pump
And the mechanical pump is respectively communicated with the bottom and top of the gearbox, for by the lubricating oil from the bottom of the gearbox
From the top spray of the gearbox with for the gearbox lubrication, the temperature sensor is for sensing institute after being sucked out and pressurizeing
The temperature for stating lubricating oil, the described method comprises the following steps:
S11: the controller judges that the operating mode of the automobile, the operating mode include electric-only mode and hybrid power
Mode；
S12: under the electric-only mode, the controller controls the electrodynamic pump according to the temperature of the lubricating oil with not
Same power is to the gearbox lubrication；And
S13: under the hybrid mode, the controller closes the electrodynamic pump, and the mechanical pump is with engine start
And start to the gearbox lubrication；
The temperature of the lubricating oil and the electrodynamic pump are negatively correlated to the power of the gearbox lubrication, with the lubricating oil
Temperature increases, and the controller controls the electrodynamic pump and is gradually reduced to the power of the gearbox lubrication.
2. the method as described in claim 1, which is characterized in that detect the temperature of the lubricating oil；If the lubricating oil
Temperature is started less than the first preset temperature, the controller control electrodynamic pump with the first duty ratio；
If the temperature of the lubricating oil judges the electricity less than the second preset temperature and when being greater than first preset temperature
The busbar voltage of dynamic pump, if the busbar voltage of electrodynamic pump is less than default busbar voltage, the controller controls the electrodynamic pump
With the starting of the second duty ratio, if the busbar voltage of the electrodynamic pump is greater than the default busbar voltage, the controller control
The electrodynamic pump is with the starting of third duty ratio；
If the temperature of the lubricating oil is less than third preset temperature and is greater than second preset temperature, the electricity is judged
The busbar voltage of dynamic pump, if the busbar voltage of the electrodynamic pump is less than the default busbar voltage, the controller controls institute
It states electrodynamic pump to start with the 4th duty ratio, if the busbar voltage of the electrodynamic pump is greater than the default busbar voltage, the control
Device processed is controlled the electrodynamic pump and is started with the 5th duty ratio；
If the temperature of the lubricating oil is greater than third preset temperature, the busbar voltage of the electrodynamic pump is judged, if institute
The busbar voltage for stating electrodynamic pump is less than the default busbar voltage, the controller control the electrodynamic pump with the 6th duty compared with
Dynamic, if the busbar voltage of the electrodynamic pump is greater than the default busbar voltage, the controller controls the electrodynamic pump with the
Seven duty ratios start；
Wherein, first preset temperature to the third preset temperature gradually increases, first duty ratio to the described 7th
Duty ratio is gradually reduced.
3. the method as described in claim 1, which is characterized in that detect the temperature of the lubricating oil；If the lubricating oil
Temperature is controlled the electrodynamic pump and is run with the 8th duty ratio less than the 4th preset temperature, the controller；
If the temperature of the lubricating oil judges the electricity less than the 5th preset temperature and when being greater than four preset temperature
The busbar voltage of dynamic pump, if the busbar voltage of the electrodynamic pump is less than default busbar voltage, the controller controls the electricity
Dynamic pump is with the operation of the 9th duty ratio, if the busbar voltage of the electrodynamic pump is greater than the default busbar voltage, the controller
The electrodynamic pump is controlled to run with the tenth duty ratio；
If the temperature of the lubricating oil judges the electricity less than the 6th preset temperature and when being greater than five preset temperature
The busbar voltage of dynamic pump, if the busbar voltage of the electrodynamic pump is less than the default busbar voltage, the controller control
Electrodynamic pump is run with the 11st duty ratio, if the busbar voltage of the electrodynamic pump is greater than the default busbar voltage, the control
Device processed is controlled the electrodynamic pump and is run with the 12nd duty ratio；
If the temperature of the lubricating oil is greater than the 6th preset temperature, the busbar voltage of the electrodynamic pump is judged, if
The busbar voltage of the electrodynamic pump is less than the default busbar voltage, and the controller controls the electrodynamic pump with the 13rd duty
Than operation, if the busbar voltage of the electrodynamic pump is greater than the default busbar voltage, the controller controls the electrodynamic pump
With the operation of the 14th duty ratio；
Wherein, the 4th preset temperature to the 6th preset temperature gradually increases, the 8th duty ratio to the described tenth
Four duty ratios are gradually reduced.
4. the method as described in claim 1, which is characterized in that before the automobile meets driving conditions, the controller
The electric priming pump is controlled to the gearbox lubrication；
After the electrodynamic pump continuous service preset time, the automobile is still unsatisfactory for the driving conditions, the controller control
The electrodynamic pump is closed, wherein the driving conditions are as follows: the gear of the automobile is that the speed of non-park position and the automobile is not
Zero.
5. a kind of speed changing box lubricating system suitable for hybrid vehicle, which is characterized in that including gearbox, lubricating oil, electricity
Dynamic pump, mechanical pump, temperature sensor and controller；
The lubricating oil is contained in the gearbox, and the electrodynamic pump and the mechanical pump are respectively communicated with the bottom of the gearbox
Portion and top, for the top spray after the lubricating oil is sucked out and is pressurizeed from the bottom of the gearbox from the gearbox
Think the gearbox lubrication；
The temperature sensor is used to sense the temperature of the lubricating oil；
The controller is used to judge the operating mode of the automobile, and the operating mode includes electric-only mode and hybrid power
Mode；
Under the electric-only mode, the controller controls the electrodynamic pump according to the temperature of the lubricating oil with different
Power is to the gearbox lubrication；
Under the hybrid mode, the controller closes the electrodynamic pump, and the mechanical pump is opened with engine start
It moves to the gearbox lubrication；
The temperature of the lubricating oil and the electrodynamic pump are negatively correlated to the power of the gearbox lubrication, with lubricating oil temperature liter
Height, the controller control the electrodynamic pump and are gradually reduced to the power of the gearbox lubrication.
6. system as claimed in claim 5, which is characterized in that the temperature sensor detects the temperature of the lubricating oil；Such as
The temperature of lubricating oil described in fruit is controlled the electrodynamic pump and is started with the first duty ratio less than the first preset temperature, the controller；
If the temperature of the lubricating oil is less than the second preset temperature and when being greater than first preset temperature, the controller
The busbar voltage of the electrodynamic pump is judged, if the busbar voltage of the electrodynamic pump is less than the default busbar voltage, the control
Device processed is controlled the electrodynamic pump and is started with the second duty ratio, if the busbar voltage of the electrodynamic pump is greater than the default bus electricity
Pressure, the controller control the electrodynamic pump with the starting of third duty ratio；
If the temperature of the lubricating oil is less than third preset temperature and is greater than second preset temperature, the controller
The busbar voltage of the electrodynamic pump is judged, if the busbar voltage of the electrodynamic pump is less than the default busbar voltage, the control
Device processed is controlled the electrodynamic pump and is started with the 4th duty ratio, if the busbar voltage of the electrodynamic pump is greater than the default bus electricity
Pressure, the controller are controlled the electrodynamic pump and are started with the 5th duty ratio；
If the temperature of the lubricating oil is greater than the third preset temperature, the controller judges the mother of the electrodynamic pump
Line voltage, if the busbar voltage of the electrodynamic pump is less than the default busbar voltage, the controller controls the electrodynamic pump
With the starting of the 6th duty ratio, if the busbar voltage of the electrodynamic pump is greater than the default busbar voltage, the controller control
The electrodynamic pump is started with the 7th duty ratio；
Wherein, first preset temperature to the third preset temperature gradually increases, first duty ratio to the described 7th
Duty ratio is gradually reduced.
7. system as claimed in claim 5, which is characterized in that the temperature sensor detects the temperature of the lubricating oil；Such as
The temperature of lubricating oil described in fruit is controlled the electrodynamic pump and is run with the 8th duty ratio less than the 4th preset temperature, the controller；
If the temperature of the lubricating oil is less than the 5th preset temperature and when being greater than four preset temperature, the controller
The busbar voltage of the electrodynamic pump is judged, if the busbar voltage of the electrodynamic pump is less than default busbar voltage, the controller
The electrodynamic pump is controlled to run with the 9th duty ratio, if the busbar voltage of the electrodynamic pump is greater than the default busbar voltage,
The controller is controlled the electrodynamic pump and is run with the tenth duty ratio；
If the temperature of the lubricating oil is less than the 6th preset temperature and when being greater than five preset temperature, the controller
The busbar voltage of the electrodynamic pump is judged, if the busbar voltage of the electrodynamic pump is less than the default busbar voltage, the control
Device processed is controlled the electrodynamic pump and is run with the 11st duty ratio, if the busbar voltage of the electrodynamic pump is greater than the default bus
Voltage, the controller are controlled the electrodynamic pump and are run with the 12nd duty ratio；
If the temperature of the lubricating oil is greater than the 6th preset temperature, the controller judges the bus of the electrodynamic pump
Voltage, if the busbar voltage of the electrodynamic pump is less than the default busbar voltage, the controller control the electrodynamic pump with
13rd duty ratio operation, if the busbar voltage of the electrodynamic pump is greater than the default busbar voltage, the controller control
The electrodynamic pump is run with the 14th duty ratio；
Wherein, the 4th preset temperature to the 6th preset temperature gradually increases, the 8th duty ratio to the described tenth
Four duty ratios are gradually reduced.
8. system as claimed in claim 5, which is characterized in that before the automobile meets driving conditions, the controller
The electric priming pump is controlled to the gearbox lubrication；
After the electrodynamic pump continuous service preset time, the automobile is still unsatisfactory for the driving conditions, the controller control
The electrodynamic pump is closed, wherein the driving conditions are as follows: the gear of the automobile is that the speed of non-park position and the automobile is not
Zero.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410856550.3A CN105805285B (en) | 2014-12-31 | 2014-12-31 | Gearbox lubrication method and speed changing box lubricating system suitable for hybrid vehicle |
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| CN201410856550.3A CN105805285B (en) | 2014-12-31 | 2014-12-31 | Gearbox lubrication method and speed changing box lubricating system suitable for hybrid vehicle |
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| CN105805285B true CN105805285B (en) | 2019-06-07 |
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| CN106499803A (en) * | 2016-11-30 | 2017-03-15 | 广州市花都全球自动变速箱有限公司 | A kind of automatic gear-box with cooling system |
| CN108386248B (en) * | 2018-01-29 | 2019-11-05 | 广州汽车集团股份有限公司 | A kind of engine oil method for controlling pump and device |
| CN109764132A (en) * | 2019-01-29 | 2019-05-17 | 东风汽车集团有限公司 | A kind of hydraulic control method and system of hybrid power gearbox |
| CN111817503B (en) * | 2019-04-11 | 2023-04-07 | 上海汽车集团股份有限公司 | Hybrid gearbox driving motor cooling system and control method |
| CN113757354B (en) * | 2021-10-11 | 2023-06-23 | 安徽江淮汽车集团股份有限公司 | Control method and device for electronic oil pump of automatic gearbox |
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| DE60325436D1 (en) * | 2002-03-27 | 2009-02-05 | Calsonic Kansei Corp | Cooling device of a water-cooled Brennkraftmascine and transmission oil cooler module |
| JP2009255776A (en) * | 2008-04-17 | 2009-11-05 | Aisin Ai Co Ltd | Hybrid power unit |
| CN201827348U (en) * | 2010-07-15 | 2011-05-11 | 浙江吉利汽车研究院有限公司 | Device for controlling automatic transmission to enter different heat mode layers |
| KR20140006941A (en) * | 2011-03-11 | 2014-01-16 | 알리손 트랜스미션, 인크. | Clogged filter detection system and method |
| CN203348511U (en) * | 2013-06-01 | 2013-12-18 | 比亚迪汽车工业有限公司 | Oil jet lubrication system of transmission |
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