CN108146426A - A kind of startup control method and device of hybrid electric vehicle engine - Google Patents
A kind of startup control method and device of hybrid electric vehicle engine Download PDFInfo
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- CN108146426A CN108146426A CN201711417224.2A CN201711417224A CN108146426A CN 108146426 A CN108146426 A CN 108146426A CN 201711417224 A CN201711417224 A CN 201711417224A CN 108146426 A CN108146426 A CN 108146426A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W20/00—Control systems specially adapted for hybrid vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
- B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/06—Combustion engines, Gas turbines
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Air-Conditioning For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
This application discloses a kind of startup control methods of hybrid electric vehicle engine, when vehicle enters driving condition, when compressor of air conditioner works and engine does not work, entire car controller is by judging whether engine misses, whether gear is neutral gear, in the case of whether motor speed is rational, it is preferential to start engine using the mode of motor towing astern, only when gear is neutral gear and towing astern condition is unsatisfactory for, the mode that starter starts can just be selected to start engine, it realizes to turn on the aircondition and starts the function of engine, this function substantially reduces the probability that starter starts engine, avoid starter Fraquent start, effective protection starter and its parts, when can realize that vehicle interior temperature meets set temperature simultaneously, engine start and stop function can be acted on normally, oil consumption is reduced to a certain extent, improve the economy of vehicle.
Description
Technical field
The present invention relates to Development of HEV Technology field, more particularly to a kind of hybrid electric vehicle engine
Start control method and device.
Background technology
The new energy bus of hybrid power system is more and more currently on the market, relative to conventional truck, hybrid power
The difference lies in increase the components such as motor, battery, therefore hybrid vehicle has idling and opens in structure for automobile
Stop function.
When idling start and stop function is opened, if in vehicle electric-only mode driving driving process, air-conditioning panel is being pressed
Under on off state, once vehicle interior temperature reaches set temperature, compressor of air conditioner is stopped, and compressor of air conditioner working condition is answered
Position, start and stop function work, engine misses；In engine misses, compressor of air conditioner was stopped after a period of time, interior temperature
When degree is higher than set temperature, compressor of air conditioner automatically begins to work, after entire car controller receives compressor of air conditioner working condition,
Engine is controlled to open, motor speed is too low at this time, will starter startup engine.The air conditioner compressed chance of the air-conditioning system
According to vehicle interior temperature intermittent work, this results in starter frequent starting engine, considerably increases starter and its component
The speed of damage.
And if turned off engine idling start and stop function, engine does not stop always, and compressor of air conditioner changes with vehicle interior temperature
It can be but had the disadvantage that with discontinuous operation, eliminate idling start and stop function, the oil consumption of dynamical system is greatly increased, substantially reduced
The economy of vehicle, the competitiveness of vehicle substantially reduce.
Invention content
In view of this, it the present invention provides a kind of startup control method and device of hybrid electric vehicle engine, is protecting
On the basis of staying engine start and stop function, the phenomenon that avoiding starter frequent starting, effective protection starter and its parts.
In order to achieve the above-mentioned object of the invention, specific technical solution provided by the invention is as follows：
A kind of startup control method of hybrid electric vehicle engine, including：
When vehicle enter driving condition, compressor of air conditioner work and engine do not work when, judge current gear whether be
Neutral gear；
If neutral gear, judge whether engine temperature is less than preset value；
If being less than, control starter starts engine；
If being not less than, control motor towing astern starts engine；
If not neutral gear obtains current motor rotating speed, and whether within a preset range to judge current motor rotating speed, described default
The upper limit of range is the corresponding motor speed of current gear shift-up point, and the lower limit of the preset range is under engine idle conditions
Motor speed；
If in the preset range, control motor towing astern starts engine；
If not in the preset range, return described in performing when vehicle enters driving condition, air-conditioning switch is opened, is started
When machine does not work, judge whether current gear is neutral gear.
Preferably, it is described judge whether current gear is neutral gear before, the method further includes：
When vehicle enters driving condition, judge whether compressor of air conditioner is in running order；
If being not in working condition, engine is started using idling start and stop function, engine start-up and shut-down control is not by air-conditioning shadow
It rings；
If in running order, judge whether engine has worked；
If having worked, engine is forbidden to shut down；
If not working, return execution is described to judge whether current gear is neutral gear.
Preferably, it is described to judge whether compressor of air conditioner is in running order, including：
Judge whether air-conditioning switch is opened；
If opening, judge whether Current Temperatures reach preset temperature；
If not up to, judgement compressor of air conditioner is in running order；
If having reached, judgement compressor of air conditioner is in non-working condition；
If being not switched on, judgement compressor of air conditioner is in non-working condition.
Preferably, the preset temperature is preset for driver.
A kind of startup control device of hybrid electric vehicle engine, including：
First judging unit, for when vehicle enters driving condition, compressor of air conditioner work and engine and do not work, sentencing
Whether disconnected current gear is neutral gear；If neutral gear, second judgment unit is triggered, if not neutral gear, triggers third judging unit；
The second judgment unit, for judging whether engine temperature is less than preset value；If being less than, the first control of triggering
Unit if being not less than, triggers the second control unit；
First control unit, for starter to be controlled to start engine；
Second control unit, for motor towing astern to be controlled to start engine；
Whether the third judging unit for obtaining current motor rotating speed, and judges current motor rotating speed in default model
In enclosing, the upper limit of the preset range is the corresponding motor speed of current gear shift-up point, and the lower limit of the preset range is hair
Motor speed under motivation idling mode；If in the preset range, second control unit is triggered；If not described pre-
If in range, trigger first judging unit.
Preferably, described device further includes：
4th judging unit, for when vehicle enters driving condition, judging whether compressor of air conditioner is in running order；
If being not in working condition, idling start-up and shut-down control unit is triggered；If in running order, the 5th judging unit is triggered；
The idling start-up and shut-down control unit, for starting engine using idling start and stop function, engine start-up and shut-down control is not
It is influenced by air-conditioning；
5th judging unit, for judging whether engine has worked；If having worked, engine is forbidden to shut down, if
It does not work, triggers first judging unit.
Preferably, the 4th judging unit includes：
First judgment sub-unit, for judging whether air-conditioning switch is opened；If opening, the second judgment sub-unit is triggered, if
It is not switched on, triggering the first judgement subelement；
Second judgment sub-unit, for judging whether Current Temperatures reach preset temperature；If not up to, triggering second
Judge subelement；If having reached, triggering the first judgement subelement；
The second judgement subelement, for judging that compressor of air conditioner is in running order；
The first judgement subelement, non-working condition is in for compressor of air conditioner.
Preferably, the preset temperature is preset for driver.
Relative to the prior art, beneficial effects of the present invention are as follows：
A kind of startup control method and device of hybrid electric vehicle engine disclosed by the invention enter driving in vehicle
During state, air-conditioning panel switch is opened, when temperature is higher than set temperature in the car, compressor of air conditioner automatically begins to work, vehicle
Controller by judging whether engine misses, gear whether be in the case of whether neutral gear, motor speed rational, it is preferential to use
The mode of motor towing astern starts engine, only when gear is neutral gear and towing astern condition is unsatisfactory for, starter can just be selected to rise
Dynamic mode realizes the function for startup engine of turning on the aircondition to start engine, this function substantially reduces starter and starts hair
The probability of motivation, avoids starter Fraquent start, effective protection starter and its parts, while can realize interior temperature
When degree meets set temperature, engine start and stop function can be acted on normally, reduce oil consumption to a certain extent, improve the warp of vehicle
Ji property；In addition it ensure that air-conditioning just can be worked normally timely, effectively avoid heat weather once driver has air conditioning requirements
Under, driver turns on the aircondition engine the problem of being not responding to, and substantially improves the riding experience of driver and passenger.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of startup control method flow chart of hybrid electric vehicle engine disclosed by the embodiments of the present invention；
Fig. 2 is the startup control method flow chart of another hybrid electric vehicle engine disclosed by the embodiments of the present invention；
Fig. 3 is a kind of startup control device structural representation of hybrid electric vehicle engine disclosed by the embodiments of the present invention
Figure.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, present embodiment discloses a kind of startup control method of hybrid electric vehicle engine, applied to whole
Vehicle controller specifically includes following steps：
S101：When vehicle, which enters driving condition, compressor of air conditioner work and engine, not to work, judge that current gear is
No is neutral gear；If neutral gear, S102 is performed, if not neutral gear, performs S103；
S102：Judge whether engine temperature is less than preset value；If being less than, S104 is performed, if being not less than, performs S105；
S104：Starter is controlled to start engine；
S105：Motor towing astern is controlled to start engine；
When vehicle enters driving condition, compressor of air conditioner works, engine does not work and current gear is neutral gear, preferentially
Using motor towing astern engine start engine, started under the occasional case of the non-heat engine of engine using the startup of starter static state
Machine.
The non-heat engine of engine refers specifically to：Engine temperature is less than preset value.
Motor towing astern starts engine and refers specifically to close clutch, the similar rigid connection of motor-clutch-engine；Then
To motor plus torque, motor has rotating speed, while drives engine rotation by clutch.
S103：Obtain current motor rotating speed；
S106：Judge current motor rotating speed whether within a preset range；
If in the preset range, S105 is performed, if not in the preset range, returns and performs S101.
The upper limit of the preset range is the corresponding motor speed of current gear shift-up point, and the lower limit of the preset range is
Motor speed under engine idle conditions；Engine idling is scalar quantity, each engine all corresponds to an idling scalar quantity.
Each the corresponding motor speed of gear shift-up point is also a scalar quantity, as long as determining current gear, it is possible to logical
Power assembly system is crossed to be configured to obtain the corresponding motor speed of current gear shift-up point.
If when not in the preset range, return and perform S101, delay start, isotype switching is cut from electric-only mode
When being changed to hybrid mode, restart when meeting engine start condition.
A kind of startup control method of hybrid electric vehicle engine disclosed in the present embodiment, enters driving condition in vehicle
When, air-conditioning panel switch is opened, when temperature is higher than set temperature in the car, compressor of air conditioner automatically begins to work, full-vehicle control
For device by judging whether engine misses, whether gear is in the case of whether neutral gear, motor speed are rational, preferentially using motor
The mode of towing astern starts engine, only when gear is neutral gear and towing astern condition is unsatisfactory for, starter can just be selected to start
Mode realizes the function for startup engine of turning on the aircondition to start engine, this function substantially reduces starter and starts engine
Probability, avoid starter Fraquent start, effective protection starter and its parts, while can realize that vehicle interior temperature is expired
During sufficient set temperature, engine start and stop function can be acted on normally, reduce oil consumption to a certain extent, improve the economy of vehicle
Property；In addition it ensure that air-conditioning just can be worked normally timely, effectively be avoided under heat weather once driver has air conditioning requirements,
Driver turns on the aircondition engine the problem of being not responding to, and substantially improves the riding experience of driver and passenger.
Referring to Fig. 2, present embodiment discloses the startup control method of another hybrid electric vehicle engine, it is specific to wrap
Include following steps：
S201：When vehicle enters driving condition, judge whether compressor of air conditioner is in running order；If it is not in work
State performs S202, if in running order, performs S203；
Specifically, described judge whether compressor of air conditioner is in running order, including：
Judge whether air-conditioning switch is opened；
If opening, judge whether Current Temperatures reach preset temperature；The preset temperature is preset for driver.
If not up to, judgement compressor of air conditioner is in running order；
If having reached, judgement compressor of air conditioner is in non-working condition；
If being not switched on, judgement compressor of air conditioner is in non-working condition.
S202：Engine is started using idling start and stop function, engine start-up and shut-down control is not influenced by air-conditioning；
S203：Judge whether engine has worked；If having worked, S204 is performed, S205 is performed if not working；
S204：Engine is forbidden to shut down；
S205：Judge whether current gear is neutral gear；If neutral gear, S206 is performed, if not neutral gear, performs S207；
S206：Judge whether engine temperature is less than preset value；If being less than, S208 is performed, if being not less than, performs S209；
S208：Starter is controlled to start engine；
S209：Motor towing astern is controlled to start engine；
S207：Obtain current motor rotating speed；
S210：Judge current motor rotating speed whether within a preset range；
The upper limit of the preset range is the corresponding motor speed of current gear shift-up point, and the lower limit of the preset range is
Motor speed under engine idle conditions；
If in the preset range, S209 is performed, if not in the preset range, returns and performs S205.
The startup control method of a kind of hybrid electric vehicle engine disclosed in the present embodiment, when vehicle enters driving shape
State, and when compressor of air conditioner is in non-working condition, the start-up and shut-down control of engine is not influenced by air-conditioning, is opened using existing idling
Stop function and start engine；When vehicle enters driving condition and compressor of air conditioner is in running order, preferentially fallen using motor
The mode dragged starts engine, only when gear is neutral gear and towing astern condition is unsatisfactory for, can just select the side of starter starting
Formula starts engine.The present embodiment does not need to change existing vehicle arrangement, is retaining engine start and stop work(by control strategy
On the basis of energy, the function for startup engine of turning on the aircondition is realized, avoids starter frequent starting.
Based on the startup control method of hybrid electric vehicle engine a kind of disclosed in above-described embodiment, referring to Fig. 3, this
Embodiment corresponds to the startup control device for disclosing a kind of hybrid electric vehicle engine, including：
First judging unit 301, for working as, vehicle enters driving condition, compressor of air conditioner works and engine does not work
When, judge whether current gear is neutral gear；If neutral gear, second judgment unit 302 is triggered, if not neutral gear, triggering third judges
Unit 303；
The second judgment unit 302, for judging whether engine temperature is less than preset value；If being less than, triggering first
Control unit 304 if being not less than, triggers the second control unit 305；
First control unit 304, for starter to be controlled to start engine；
Second control unit 305, for motor towing astern to be controlled to start engine；
Whether the third judging unit 303 for obtaining current motor rotating speed, and judges current motor rotating speed default
In the range of, the upper limit of the preset range is the corresponding motor speed of current gear shift-up point, and the lower limit of the preset range is
Motor speed under engine idle conditions；If in the preset range, second control unit is triggered；If not described
In preset range, first judging unit is triggered.
Preferably, described device further includes：
4th judging unit, for when vehicle enters driving condition, judging whether compressor of air conditioner is in running order；
If being not in working condition, idling start-up and shut-down control unit is triggered；If in running order, the 5th judging unit is triggered；
The idling start-up and shut-down control unit, for starting engine using idling start and stop function, engine start-up and shut-down control is not
It is influenced by air-conditioning；
5th judging unit, for judging whether engine has worked；If having worked, engine is forbidden to shut down, if
It does not work, triggers first judging unit.
Preferably, the 4th judging unit includes：
First judgment sub-unit, for judging whether air-conditioning switch is opened；If opening, the second judgment sub-unit is triggered, if
It is not switched on, triggering the first judgement subelement；
Second judgment sub-unit, for judging whether Current Temperatures reach preset temperature；The preset temperature is department
Machine is preset.
If not up to, the second judgement of triggering subelement；If having reached, triggering the first judgement subelement；
The second judgement subelement, for judging that compressor of air conditioner is in running order；
The first judgement subelement, non-working condition is in for compressor of air conditioner.
A kind of startup control device of hybrid electric vehicle engine disclosed in the present embodiment, enters driving condition in vehicle
When, air-conditioning panel switch is opened, when temperature is higher than set temperature in the car, compressor of air conditioner automatically begins to work, full-vehicle control
For device by judging whether engine misses, whether gear is in the case of whether neutral gear, motor speed are rational, preferentially using motor
The mode of towing astern starts engine, only when gear is neutral gear and towing astern condition is unsatisfactory for, starter can just be selected to start
Mode realizes the function for startup engine of turning on the aircondition to start engine, this function substantially reduces starter and starts engine
Probability, avoid starter Fraquent start, effective protection starter and its parts, while can realize that vehicle interior temperature is expired
During sufficient set temperature, engine start and stop function can be acted on normally, reduce oil consumption to a certain extent, improve the economy of vehicle
Property；In addition it ensure that air-conditioning just can be worked normally timely, effectively be avoided under heat weather once driver has air conditioning requirements,
Driver turns on the aircondition engine the problem of being not responding to, and substantially improves the riding experience of driver and passenger.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide range caused.
Claims (8)
1. a kind of startup control method of hybrid electric vehicle engine, which is characterized in that including：
When vehicle, which enters driving condition, compressor of air conditioner work and engine, not to work, judge whether current gear is neutral gear；
If neutral gear, judge whether engine temperature is less than preset value；
If being less than, control starter starts engine；
If being not less than, control motor towing astern starts engine；
If not neutral gear obtains current motor rotating speed, and whether within a preset range to judge current motor rotating speed, the preset range
The upper limit for the corresponding motor speed of current gear shift-up point, the lower limit of the preset range is the electricity under engine idle conditions
Machine rotating speed；
If in the preset range, control motor towing astern starts engine；
If not in the preset range, return described in performing when vehicle enters driving condition, air-conditioning switch opening, engine not
During work, judge whether current gear is neutral gear.
2. according to the method described in claim 1, it is characterized in that, it is described judge whether current gear is neutral gear before, institute
The method of stating further includes：
When vehicle enters driving condition, judge whether compressor of air conditioner is in running order；
If being not in working condition, engine is started using idling start and stop function, engine start-up and shut-down control is not influenced by air-conditioning；
If in running order, judge whether engine has worked；
If having worked, engine is forbidden to shut down；
If not working, return execution is described to judge whether current gear is neutral gear.
3. according to the method described in claim 2, it is characterized in that, described judge whether compressor of air conditioner is in running order,
Including：
Judge whether air-conditioning switch is opened；
If opening, judge whether Current Temperatures reach preset temperature；
If not up to, judgement compressor of air conditioner is in running order；
If having reached, judgement compressor of air conditioner is in non-working condition；
If being not switched on, judgement compressor of air conditioner is in non-working condition.
4. according to the method described in claim 3, it is characterized in that, the preset temperature is preset for driver.
5. a kind of startup control device of hybrid electric vehicle engine, which is characterized in that including：
First judging unit, for when vehicle enters driving condition, compressor of air conditioner work and engine and do not work, judging to work as
Whether preceding gear is neutral gear；If neutral gear, second judgment unit is triggered, if not neutral gear, triggers third judging unit；
The second judgment unit, for judging whether engine temperature is less than preset value；If being less than, the first control of triggering is single
Member if being not less than, triggers the second control unit；
First control unit, for starter to be controlled to start engine；
Second control unit, for motor towing astern to be controlled to start engine；
Whether within a preset range the third judging unit for obtaining current motor rotating speed, and judges current motor rotating speed,
The upper limit of the preset range is the corresponding motor speed of current gear shift-up point, and the lower limit of the preset range is idle for engine
Motor speed under fast state；If in the preset range, second control unit is triggered；If not in the preset range
It is interior, trigger first judging unit.
6. device according to claim 5, which is characterized in that described device further includes：
4th judging unit, for when vehicle enters driving condition, judging whether compressor of air conditioner is in running order；If not
It is in running order, trigger idling start-up and shut-down control unit；If in running order, the 5th judging unit is triggered；
The idling start-up and shut-down control unit, for starting engine using idling start and stop function, engine start-up and shut-down control is not by sky
Adjusting influences；
5th judging unit, for judging whether engine has worked；If having worked, engine is forbidden to shut down, if non-work
Make, trigger first judging unit.
7. device according to claim 6, which is characterized in that the 4th judging unit includes：
First judgment sub-unit, for judging whether air-conditioning switch is opened；If opening, the second judgment sub-unit is triggered, if not beating
It opens, triggering the first judgement subelement；
Second judgment sub-unit, for judging whether Current Temperatures reach preset temperature；If not up to, the second judgement of triggering
Subelement；If having reached, triggering the first judgement subelement；
The second judgement subelement, for judging that compressor of air conditioner is in running order；
The first judgement subelement, non-working condition is in for compressor of air conditioner.
8. the device according to right will go 7, which is characterized in that the preset temperature is preset for driver.
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| CN110686901A (en) * | 2019-09-29 | 2020-01-14 | 潍柴动力股份有限公司 | Control method and device for engine pilot injection |
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| CN110254428A (en) * | 2019-05-22 | 2019-09-20 | 中国第一汽车股份有限公司 | A kind of automatic on-off control method of 48V hybrid vehicle |
| CN110686901A (en) * | 2019-09-29 | 2020-01-14 | 潍柴动力股份有限公司 | Control method and device for engine pilot injection |
| CN113879275A (en) * | 2021-09-29 | 2022-01-04 | 奇瑞汽车股份有限公司 | Engine starting method and device |
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| CN108146426B (en) | 2019-12-10 |
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