CN106948954A - Torque control device and torque control method, vehicle torsional moment control system - Google Patents
Torque control device and torque control method, vehicle torsional moment control system Download PDFInfo
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- CN106948954A CN106948954A CN201710351263.0A CN201710351263A CN106948954A CN 106948954 A CN106948954 A CN 106948954A CN 201710351263 A CN201710351263 A CN 201710351263A CN 106948954 A CN106948954 A CN 106948954A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000003507 refrigerant Substances 0.000 claims description 42
- 230000008878 coupling Effects 0.000 claims description 28
- 238000010168 coupling process Methods 0.000 claims description 28
- 238000005859 coupling reaction Methods 0.000 claims description 28
- 238000000465 moulding Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000004378 air conditioning Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 9
- 230000033228 biological regulation Effects 0.000 description 6
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 230000002045 lasting effect Effects 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000008450 motivation Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000008246 gaseous mixture Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/04—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/1002—Output torque
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/18—Control of the engine output torque
Abstract
The embodiments of the invention provide a kind of torque control device and torque control method, vehicle torsional moment control system, belong to air conditioning equipment of car technical field.Torque control device includes：First pressure sensor, second pressure sensor and master control set, compressor is coupled with engine, first pressure sensor and second pressure sensor are coupled with compressor, and first pressure sensor and second pressure sensor are also coupled with master control set, and master control set is coupled with engine.The pressure that compressor operating is produced is obtained by pressure sensor, and the output torque of engine is adjusted according to pressure and rotating speed for master control set, the waste of the energy of compressor operationally can be effectively reduced, to effectively improve the fuel economy and actually used applicability of automobile.
Description
Technical field
The present invention relates to air conditioning equipment of car technical field, in particular to a kind of torque control device and moment of torsion control
Method processed, vehicle torsional moment control system.
Background technology
With the development of national economy, the living standard of people is improved constantly, and automobile gradually realizes popularization.
The compressor of air conditioner of automobile is driven by automobile engine.Automobile engine is operationally the air-conditioning pressure of automobile
Contracting machine output torque, with the normal work for the compressor of air conditioner for ensureing automobile.But in the prior art, most of automobile engines are equal
The peak load moment of torsion of peak load state is in the compressor of air conditioner output compressor of air conditioner of automobile so that compressor of air conditioner
Normal work no matter which load condition be in, the peak load moment of torsion acquired in compressor of air conditioner ensure that its is normal
Work.But when compressor of air conditioner, which only needs to low torque, just ensure that its refrigeration or heating effect, what compressor of air conditioner was obtained
Peak load moment of torsion causes the waste of big energy so that automobile fuel consumption increases, and exhaust emissions deteriorates, and then significantly reduces
Automobile is in actually used applicability.
Therefore, the waste of the energy of compressor operationally how is effectively reduced, to effectively improve automobile actually used
Applicability be current industry a great problem.
The content of the invention
In view of this, it is an object of the invention to provide a kind of torque control device and torque control method, vehicle torsional moment
Control system, it can effectively reduce the waste of the energy of compressor operationally, to effectively improve automobile actually used
Applicability.
What embodiments of the invention were realized in：
In a first aspect, the embodiments of the invention provide a kind of torque control device, the torque control device is applied to vapour
Car torque control system, the vehicle torsional moment control system includes：Engine and compressor, the torque control device include：
First pressure sensor, second pressure sensor and master control set, the compressor are coupled with the engine, first pressure
Force snesor and the second pressure sensor are coupled with the compressor, the first pressure sensor and second pressure
Force snesor is also coupled with the master control set, and the master control set is coupled with the engine.The first pressure sensing
Device, for obtaining first pressure value of the compressor operationally produced by refrigerant input, and by the first pressure value
Export to the master control set.The second pressure sensor, for obtaining the compressor operationally refrigerant output end institute
The second pressure value of generation, and the second pressure value is exported to the master control set；The master control set, for according to institute
State first pressure value and the second pressure value obtains pressure difference value, and according to the pressure difference value and engine speed value and torsion
The preset relation of square value, obtains the output torque of the engine, to adjust the torsion of the engine according to the output torque
Square is exported.
Further, the master control set includes：Torque arithmetic control module and car running computer, the torque arithmetic control
Module is coupled with the first pressure sensor and the second pressure sensor respectively, and the car running computer is turned round with described respectively
Square calculation control module and engine coupling.The torque arithmetic control module, for according to the first pressure value and
The second pressure value obtains pressure difference value, and the engine speed value and the pressure sent according to the car running computer
The compressor operating moment of torsion that difference is obtained with the preset relation of the torque value, the compressor operating moment of torsion is sent to described
Car running computer.The car running computer, for obtaining the hair according to the compressor operating moment of torsion and the engine speed value
The output torque of motivation, to adjust the torque output of the engine according to the output torque.
Further, the torque arithmetic control module passes through CAN bus and the car running computer coupling
Close.
Further, the torque arithmetic control module is edge calculations torque management module.
Further, the torque control device also includes：Supply unit, the supply unit is pressed with described first respectively
Force snesor, the second pressure sensor and master control set coupling.
Further, the supply unit respectively with the first pressure sensor, the second pressure sensor, described
Torque arithmetic control module and car running computer coupling.
Further, the supply unit, the torque arithmetic control module and the car running computer are integrated in circuit
On plate.
Second aspect, the embodiments of the invention provide a kind of torque control method, applied to the torque control device, institute
Stating torque control device includes first pressure sensor, second pressure sensor and master control set, the compressor and the hair
Motivation is coupled, and the first pressure sensor and the second pressure sensor are coupled with the compressor, first pressure
Force snesor and the second pressure sensor are also coupled with the master control set, the master control set and the engine coupling
Close.Methods described includes：The first pressure sensor obtains the of the compressor operationally produced by refrigerant input
One pressure value, and the first pressure value is exported to the master control set.The second pressure sensor obtains the compression
The second pressure value of machine operationally produced by refrigerant output end, and the second pressure value is exported to the master control set.
The master control set obtains pressure difference value according to the first pressure value and the second pressure value, and according to the pressure difference value
With the preset relation of engine speed value and torque value, the output torque of the engine is obtained, with according to the output torque
Adjust the torque output of the engine.
Further, the master control set includes：Torque arithmetic control module and car running computer, the torque arithmetic control
Module is coupled with the first pressure sensor and the second pressure sensor respectively, and the car running computer is turned round with described respectively
Square calculation control module and engine coupling.Methods described also includes：The torque arithmetic control module is according to described
One pressure value and the second pressure value obtain pressure difference value, and the engine speed value sent according to the car running computer
The compressor operating moment of torsion obtained with the preset relation of the pressure difference value and the torque value, by the compressor operating moment of torsion
Send to the car running computer.The car running computer is according to the compressor operating moment of torsion and engine speed value acquisition
The output torque of the engine, to adjust the torque output of the engine according to the output torque.
The third aspect, the embodiments of the invention provide a kind of vehicle torsional moment control system, the vehicle torsional moment control system
Including：Engine, compressor and the torque control device, the engine and compressor coupling, the engine point
Do not coupled with the compressor and the master control set.
The beneficial effect of the embodiment of the present invention is：
First pressure sensor is by the coupling with compressor, and can obtaining compressor, operationally refrigerant input is produced
Raw first pressure value, and second pressure sensor can then obtain compressor operationally cold by the coupling with compressor
Second pressure value produced by matchmaker's output end.First pressure sensor and second pressure sensor pass through the coupling with master control set
Close, the first pressure value and second pressure value of acquisition are exported to master control set.Master control set by first pressure value and
Second pressure value, can obtain the pressure difference value produced between first pressure value and second pressure value.Master control set is further according to this
Pressure difference value and engine speed value obtain output torque, so that the torque output of engine is adjusted according to the output torque, with
Engine is set to export to the moment of torsion of compressor and compressor current operating state required moment of torsion same.Therefore, pressure is passed through
Sensor obtains the pressure that compressor operating is produced, and master control set enters according to pressure and rotating speed to the output torque of engine
Row regulation, can effectively reduce the waste of the energy of compressor operationally, to effectively improve the fuel economy and reality of automobile
The applicability that border is used.
Other features and advantages of the present invention will be illustrated in subsequent specification, also, partly be become from specification
It is clear that or being understood by implementing the embodiment of the present invention.The purpose of the present invention and other advantages can be by being write
Specifically noted structure is realized and obtained in specification, claims and accompanying drawing.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.By shown in accompanying drawing, above and other purpose of the invention, feature and advantage will become apparent from.In whole
Identical reference indicates identical part in accompanying drawing.Deliberately accompanying drawing, emphasis are not drawn by actual size equal proportion scaling
It is the purport for showing the present invention.
Fig. 1 shows a kind of structured flowchart of vehicle torsional moment control system provided in an embodiment of the present invention；
Fig. 2 shows a kind of structured flowchart of torque control device first provided in an embodiment of the present invention；
Fig. 3 shows a kind of structured flowchart of torque control device second provided in an embodiment of the present invention；
Fig. 4 shows the encapsulating structure schematic diagram of circuit board in a kind of torque control device provided in an embodiment of the present invention；
Fig. 5 shows a kind of flow chart of torque control method provided in an embodiment of the present invention；
Fig. 6 shows the sub-process figure of step S130 in a kind of torque control method provided in an embodiment of the present invention.
Icon：200- vehicle torsional moment control systems；210- engines；220- compressors；100- torque control devices；110-
Supply unit；120- first pressure sensors；130- second pressure sensors；140- master control sets；141- torque arithmetics are controlled
Module；142- car running computers；150- circuit boards.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Present invention implementation generally here described and illustrated in accompanying drawing
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.In addition, term " the
One ", " second " etc. is only used for distinguishing description, and it is not intended that indicating or implying relative importance.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " connection ",
" coupling " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be two
The connection of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood in the present invention
In concrete meaning.
Referring to Fig. 1, the embodiments of the invention provide vehicle torsional moment control system 200, the vehicle torsional moment control system 200
Including：Engine 210, compressor 220 and torque control device 100.
Engine 210 is mainly that the traveling of automobile and the work of compressor 220 provide power resources, and engine 210 can be with
For petrol engine 210.Gasoline is ignited burning in the cylinder inside engine 210, produces gas expansion and pusher cylinder
Interior reciprocating motion of the pistons.Reciprocating motion of the pistons can form acting, and produce moment of torsion.Engine 210 is by by the moment of torsion of generation
Output just can provide the traveling of automobile, and driving compressor 220, so that compressor 220 is operated.
Compressor 220 can be by the coupling with engine 210, so as to enter under the driving of the output torque of engine 210
Row compression work, to reach the effect of refrigeration.Specifically, point refrigerant input and refrigerant are defeated in the performance loop of compressor 220
Go out end, refrigerant can think refrigerant.Compressor 220 is under the driving of engine 210, and refrigerant is compressed by compressor 220, by pressing
The refrigerant input of contracting machine 220 carries out compressed shape into high-pressure gaseous state after entering.The refrigerant of high-pressure gaseous state is passing through pressure
The refrigerant output end of contracting machine 220 is exported to the condenser of compressor 220.The condenser that high-pressure gaseous state passes through compressor 220
Liquid is condensed into, then is ejected into by the capillary in compressor 220 in the evaporator of compressor 220.Now, the pressure of refrigerant
Power is reduced suddenly, and refrigerant is changed into gaseous state by liquid, so that substantial amounts of heat in absorption air, so that air cooling-down, therefore compression
Machine 220 has reached refrigeration.Gaseous refrigerant is produced after refrigeration, is re-introduced into the refrigerant input of compressor 220
Circulation is formed, the carry out refrigeration work that can continue in order to compressor 220.It should be noted that the torsion that engine 210 is exported
Square provides the compression work of compressor 220, when compressor 220 needs the temperature freezed different, its compression degree to refrigerant
Also different, i.e., the refrigerant input of compressor 220 is different with the pressure difference value of refrigerant output end, therefore the compression work of compressor 220
Moment of torsion required for making is also different.
Torque control device 100 can obtain the pressure produced when compressor 220 works by the coupling with compressor 220
Power difference.Specifically, torque control device 100 can obtain compressor 220 operationally, its refrigerant output end and refrigerant output
The pressure difference value at end.In addition, torque control device 100 can also obtain 210 turns of engine by the coupling with engine 210
Speed value.By pressure difference value and the tachometer value of engine 210, torque control device 100 results in the work of compressor 220 at this moment
Make the moment of torsion needed for state, and when now vehicle works, the output torque of output needed for engine 210.Torque control device
100 adjust the torque output of engine 210 according to output torque, so that engine 210 is exported to the moment of torsion of compressor 220
It is same with moment of torsion needed for the working condition of compressor 220 at this moment.
Referring to Fig. 2, the embodiments of the invention provide torque control device 100, the torque control device 100 includes：Electricity
Source device 110, first pressure sensor 120, second pressure sensor 130 and master control set 140.
Supply unit 110 is used for for first pressure sensor 120, second pressure sensor 130 and master control set 140 just
Often work provides power supply.
First pressure sensor 120 is used to obtain first pressure of the compressor 220 operationally produced by refrigerant input
Value, and first pressure value is exported to master control set 140.
Second pressure sensor 130 is used to obtain second pressure of the compressor 220 operationally produced by refrigerant output end
Value, and second pressure value is also exported to master control set 140.
Master control set 140 is used to obtain pressure difference value according to first pressure value and second pressure value, and according to pressure difference value
The output torque of engine 210 is obtained with the tachometer value of engine 210, it is defeated with the moment of torsion that engine 210 is adjusted according to output torque
Go out.
As shown in Fig. 2 supply unit 110 is rechargable power supplies, it can be the electricity of automobile, and supply unit 110 passes through hair
The work of motivation 210 and charged.Supply unit 110, will by coupling respectively with pressure sensor and master control set 140
The electric energy of storage is exported to pressure sensor and master control set 140 respectively, to ensure pressure sensor and master control set 140 just
Often work.As a kind of embodiment, supply unit 110 can provide 5 volts of dc source for master control set 140, its
5 volts of dc source can be provided for first pressure sensor 120 and second pressure sensor 130, and supply unit 110 is carried
Power supply all the way and supply unit 110 for master control set 140 provide first pressure sensor 120 and second pressure sensor 130
Another road power supply between realize electrical isolation.
First pressure sensor 120 and second pressure sensor 130 are coupled with supply unit 110, to obtain power supply dress
110 offer power supplys are provided.First pressure sensor 120 with compressor 220 by coupling, and it is defeated to be arranged on the refrigerant of compressor 220
Enter end, when being worked with obtaining compressor 220, the first pressure value that its refrigerant input is produced.Second pressure sensor 130 also leads to
Cross and coupled with compressor 220, and installed in the refrigerant output end of compressor 220, when being worked with obtaining compressor 220, its refrigerant
The second pressure value that input is produced.As a kind of embodiment, first pressure sensor 120 and second pressure sensor 130
It can be piezoelectric pressure indicator.First pressure sensor 120 itself and second pressure sensor 130 itself are respectively provided with electricity
Pole plate.When first pressure sensor 120 and second pressure 130 live line work of sensor, the battery lead plate of first pressure sensor 120
Also can be powered, to produce the first electric signal；And the battery lead plate of second pressure sensor 130 also can be powered, to produce the second telecommunications
Number.Wherein, the first electric signal can represent the current pressure of the refrigerant input of compressor 220, and the second electric signal being capable of table
Show the current pressure of the refrigerant output end of compressor 220.And needed for the cryogenic temperature of compressor 220 changes, and causes its work
Moment of torsion when also changing, the pressure of the refrigerant input of compressor 220 and/or the refrigerant input of compressor 220 also can be corresponding
Change.And then the battery lead plate of first pressure sensor 120 and/or the battery lead plate distance of second pressure sensor 130 can be because pressures
Power and produce and increased or decrease, therefore first pressure sensor 120 can because pole plate distance change cause the first electric signal strengthen or
Weaken, and second pressure sensor 130 is as pole plate distance change causes the first electric signal to strengthen or weaken.It is appreciated that
, the change of the first electric signal can represent the change of the refrigerant input current pressure of compressor 220, the change of the second electric signal
Change the change for the refrigerant output end current pressure that can also represent compressor 220.First pressure sensor 120 and second pressure are passed
Sensor 130 is coupled with master control set 140, therefore first pressure sensor 120 can be by the defeated of the first electric signal duration of generation
Go out to master control set 140, second pressure sensor 130 also can be by the output of the second electric signal duration of generation to master control set
140。
Referring to Fig. 3, master control set 140 includes：Torque arithmetic control module 141 and car running computer 142.
Torque arithmetic control module 141 is used for according to first pressure value and second pressure value acquisition pressure difference value, and according to
The compressor that the tachometer value of engine 210 and the preset relation of pressure difference value and torque value that the car running computer 142 is sent are obtained
220 operation torques, the operation torque of compressor 220 is sent to car running computer 142.
Car running computer 142 is used to obtain engine 210 according to the operation torque of compressor 220 and the tachometer value of engine 210
Output torque, to adjust the torque output of engine 210 according to output torque.
Specifically, torque arithmetic control module 141 is the IC chip with data operation disposal ability, it passes through
Coupling power device 110 obtains working power.As a kind of mode, torque arithmetic control module 141 is edge calculations moment of torsion control
Molding block.Torque arithmetic control module 141 by being coupled respectively with first pressure sensor 120 and second pressure sensor 130,
The first pressure value and lasting acquisition second pressure sensor 130 sent with lasting acquisition first pressure sensor 120 is sent out
The second pressure value sent.In addition, torque arithmetic control module 141 is by the coupling with car running computer 142, therefore can persistently it obtain
The tachometer value of engine 210 for taking car running computer 142 to send.Alternatively, torque arithmetic control module 141 passes through control
Device Area Network bus (Controller Area Network, CAN) is coupled with car running computer 142.Torque arithmetic control module
First pressure value and second pressure value are digitized processing by 141, by first pressure value and second pressure value by mould
Intend signal and be converted to data signal, and first pressure value and second pressure value are subtracted each other, obtain first pressure value and second pressure
Pressure difference value between value.In the present embodiment, torque arithmetic control module 141 has prestored 210 turns of pressure difference value and engine
The torque curve of the corresponding operation torque of compressor 220 of speed value.The pressure difference value that torque arithmetic control module 141 obtains reality
Default torque curve is corresponded to the actual tachometer value of engine 210 obtained, the pressure difference value of actual acquisition just can be obtained
With the operation torque of compressor 220 in the real work of compressor 220 corresponding to the actual tachometer value of engine 210 obtained.Can be with
Understand, by predetermined torque curve, while accurately 220 operation torque of compressor is got, it can be effectively reduced
The operand of torque arithmetic control module 141, improves operation efficiency.On the other hand, it can also avoid torque arithmetic control module
141 is excessive due to operand, causes it to crash or postpone, and then influence the accuracy of calculating.Torque arithmetic control module 141 is again
Coupled by CAN bus with car running computer 142, the operation torque of compressor 220 of acquisition is sent to driving
Computer 142.To improve the accuracy of moment of torsion regulation, torque arithmetic control module 141 is obtained after the operation torque of compressor 220, just
First pressure value, the second pressure value persistently obtained further according to lasting acquisition and the tachometer value of engine 210 persistently obtained enter
The calculating of the capable operation torque of compressor 220 next time.Therefore torque arithmetic control module 141 can be lasting to car running computer 142
Send the operation torque of compressor 220.
Car running computer 142 is also the IC chip with data operation disposal ability, and it passes through coupling power device
110 obtain working power.Car running computer 142 can be used for control fuel injection amount, gaseous mixture ratio etc..Car running computer 142
It is made up of microcomputer and peripheral circuit.Microcomputer is the electricity for being integrated with central processing unit (Central Processing Unit, CPU)
The unit of road chip, memory and input/output interface.The major part of car running computer 142 is microcomputer, and its core members is CPU.OK
Input signal is converted into digital form by car computer 142, is carried out contrast process according to the reference data of storage, is calculated output
Value, output signal removes several regulation servoelements of control through power amplification again, such as relay and switch.
Specifically, car running computer 142 is by the coupling with engine 210, car running computer 142 can obtain engine 210
The tachometer value of engine 210 that sends of speed probe, and the tachometer value of engine 210 is sent to torque arithmetic control module
141.In addition, car running computer 142 can also calculate moment of torsion needed for travelling according to the tachometer value of engine 210.Car running computer 142
The moment of torsion according to needed for the operation torque of compressor 220 got and the traveling calculated, by the operation torque of compressor 220 and calculating
Moment of torsion needed for the traveling gone out is added, and just resulting in engine 210 now needs the total torque of output, i.e., engine 210 is defeated
Go out moment of torsion.Car running computer 142 is further according to the coupling with engine 210, so as to generate control to engine 210, the control
Signal can accordingly adjust the fuel injection amount of engine 210, gaseous mixture ratio etc., so as to the engine 210 of regulation
Torque output, so that the current torque output of engine 210 and the output torque matching calculated.It should be noted that being also
The accuracy of moment of torsion regulation is improved, car running computer 142 is obtained after the output torque of engine 210, just further according to lasting acquisition
The operation torque of compressor 220, the tachometer value of engine 210 persistently obtained carry out the meter of the output torque of engine 210 next time
Calculate.Therefore car running computer 142 can be to the lasting transmission control signal of engine 210, to continue to the torque output of engine 210
Regulation.
Referring to Fig. 4, for simplification of flowsheet and reducing the supply unit in equipment volume, torque control device 100
110th, torque arithmetic control module 141 and car running computer 142 are integrated on circuit board 150.In the present embodiment, supply unit
110th, torque arithmetic control module 141 and car running computer 142 are encapsulated on same circuit board 150.It is of course also possible to be by
Torque arithmetic control module 141 and car running computer 142 are encapsulated in an on-chip system or system integrated chip (system on
Chip, SOC) on, then the SOC and power module be integrated on circuit board 150.
In addition, for the demand of actual installation, can be by above-mentioned supply unit 110, the and of torque arithmetic control module 141
Several different modules in car running computer 142 are integrated in a SOC, with the mesh realized low cost and reduce volume
, do not limit herein.
Referring to Fig. 5, the embodiment of the present invention additionally provides a kind of torque control method, applied to torque control device.Should
Torque control method includes：Step S110, step S120 and step S130.
Step S110：The first pressure sensor obtains the of the compressor operationally produced by refrigerant input
One pressure value, and the first pressure value is exported to the master control set.
Step S120：The second pressure sensor obtains the of the compressor operationally produced by refrigerant output end
Two pressure values, and the second pressure value is exported to the master control set.
Step S130：The master control set obtains pressure difference value according to the first pressure value and the second pressure value,
And according to the preset relation of the pressure difference value and engine speed value and torque value, the output torque of the engine is obtained,
To adjust the torque output of the engine according to the output torque.
Referring to Fig. 6, the sub-process of the step S130 in the torque control method also includes：Step S131 and step
S132。
Step S131：The torque arithmetic control module is obtained according to the first pressure value and the second pressure value and pressed
Power difference, and the engine speed value that is sent according to the car running computer and the pressure difference value and the torque value is pre-
If the compressor operating moment of torsion of Relation acquisition, the compressor operating moment of torsion is sent to the car running computer.
Step S132：The car running computer is according to the compressor operating moment of torsion and engine speed value acquisition institute
The output torque of engine is stated, to adjust the torque output of the engine according to the output torque.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the method for foregoing description
Specific work process, may be referred to the corresponding process in aforementioned means, will not be repeated here.
In summary, the embodiments of the invention provide a kind of torque control device 100 and torque control method, vehicle torsional moment
Control system 200.Vehicle torsional moment control system 200 includes：Engine 210 and compressor 220, torque control device 100 include：
First pressure sensor 120, second pressure sensor 130 and master control set 140.Compressor 220 is coupled with engine 210, the
One pressure sensor 120 and second pressure sensor 130 are coupled with compressor 220, and first pressure sensor 120 and second is pressed
Force snesor 130 is also coupled with master control set 140, and master control set 140 is coupled with engine 210.
First pressure sensor 120 can obtain the operationally refrigerant of compressor 220 by the coupling with compressor 220
First pressure value produced by input, and second pressure sensor 130 can then be obtained by the coupling with compressor 220
The second pressure value of compressor 220 operationally produced by refrigerant output end.First pressure sensor 120 and second pressure sensing
Device 130 by the coupling with master control set 140, the first pressure value and second pressure value of acquisition is exported to master control and filled
Put 140.Master control set 140 by first pressure value and second pressure value, can obtain first pressure value and second pressure value it
Between the pressure difference value that produces.Master control set 140 obtains output torque further according to the pressure difference value and the tachometer value of engine 210, from
And according to the output torque adjust engine 210 torque output so that engine 210 export to compressor 220 moment of torsion and
Moment of torsion needed under the current operating state of compressor 220 is same.Therefore, the work of compressor 220 is obtained by pressure sensor to produce
The output torque of engine 210 is adjusted according to pressure and rotating speed for raw pressure, and master control set 140, can be effective
Reduce the waste of the energy operationally of compressor 220, to effectively improve the fuel economy of automobile and actually used be applicable
Property.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of torque control device, it is characterised in that the torque control device is applied to vehicle torsional moment control system, described
Vehicle torsional moment control system includes：Engine and compressor, the torque control device include：First pressure sensor, second
Pressure sensor and master control set, the compressor are coupled with the engine, the first pressure sensor and described second
Pressure sensor is coupled with the compressor, the first pressure sensor and the second pressure sensor also with it is described
Master control set is coupled, and the master control set is coupled with the engine；
The first pressure sensor, for obtaining first pressure of the compressor operationally produced by refrigerant input
Value, and the first pressure value is exported to the master control set；
The second pressure sensor, for obtaining second pressure of the compressor operationally produced by refrigerant output end
Value, and the second pressure value is exported to the master control set；The master control set, for according to the first pressure value and
The second pressure value obtains pressure difference value, and according to the default pass of the pressure difference value and engine speed value and torque value
System, obtains the output torque of the engine, to adjust the torque output of the engine according to the output torque.
2. torque control device according to claim 1, it is characterised in that the master control set includes：Torque arithmetic control
Molding block and car running computer, the torque arithmetic control module are passed with the first pressure sensor and the second pressure respectively
Sensor is coupled, and the car running computer is coupled with the torque arithmetic control module and the engine respectively；
The torque arithmetic control module, for obtaining pressure difference value according to the first pressure value and the second pressure value,
And the preset relation of the engine speed value and the pressure difference value and the torque value sent according to the car running computer
The compressor operating moment of torsion of acquisition, the compressor operating moment of torsion is sent to the car running computer；
The car running computer, for obtaining the engine according to the compressor operating moment of torsion and the engine speed value
The output torque, to adjust the torque output of the engine according to the output torque.
3. torque control device according to claim 2, it is characterised in that the torque arithmetic control module passes through control
Device Area Network bus is coupled with the car running computer.
4. torque control device according to claim 3, it is characterised in that the torque arithmetic control module is edge meter
Calculate torque management module.
5. torque control device according to claim 2, it is characterised in that the torque control device also includes：Power supply
Device, the supply unit respectively with the first pressure sensor, the second pressure sensor and the master control set coupling
Close.
6. torque control device according to claim 5, it is characterised in that the supply unit is pressed with described first respectively
Force snesor, the second pressure sensor, the torque arithmetic control module and car running computer coupling.
7. torque control device according to claim 6, it is characterised in that the supply unit, the torque arithmetic control
Molding block and the car running computer it is integrated on circuit boards.
8. a kind of torque control method, it is characterised in that applied to the moment of torsion control dress as described in claim any one of 1-7
Put, the torque control device includes first pressure sensor, second pressure sensor and master control set, the compressor and institute
Engine coupling is stated, the first pressure sensor and the second pressure sensor couple with the compressor, described the
One pressure sensor and the second pressure sensor are also coupled with the master control set, and the master control set starts with described
Machine is coupled；Methods described includes：
The first pressure sensor obtains the first pressure value of the compressor operationally produced by refrigerant input, and will
The first pressure value is exported to the master control set；
The second pressure sensor obtains the second pressure value of the compressor operationally produced by refrigerant output end, and will
The second pressure value is exported to the master control set；
The master control set obtains pressure difference value according to the first pressure value and the second pressure value, and according to the pressure
The preset relation of difference and engine speed value and torque value, obtains the output torque of the engine, with according to the output
Moment of torsion adjusts the torque output of the engine.
9. torque control method according to claim 8, it is characterised in that the master control set includes：Torque arithmetic control
Molding block and car running computer, the torque arithmetic control module are passed with the first pressure sensor and the second pressure respectively
Sensor is coupled, and the car running computer is coupled with the torque arithmetic control module and the engine respectively；Methods described is also wrapped
Include：
The torque arithmetic control module obtains pressure difference value according to the first pressure value and the second pressure value, and according to
The engine speed value and the pressure difference value that the car running computer is sent are obtained with the preset relation of the torque value
Compressor operating moment of torsion, the compressor operating moment of torsion is sent to the car running computer；
The car running computer is in the institute that the engine is obtained according to the compressor operating moment of torsion and the engine speed value
Output torque is stated, to adjust the torque output of the engine according to the output torque.
10. a kind of vehicle torsional moment control system, it is characterised in that the vehicle torsional moment control system includes：Engine, compressor
With the torque control device as described in claim 1-7 any one, the engine and compressor coupling are described to start
Machine is coupled with the compressor and the master control set respectively.
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| CN201710351263.0A CN106948954A (en) | 2017-05-19 | 2017-05-19 | Torque control device and torque control method, vehicle torsional moment control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710351263.0A CN106948954A (en) | 2017-05-19 | 2017-05-19 | Torque control device and torque control method, vehicle torsional moment control system |
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Application publication date: 20170714 |