CN105867192A - Method for LIN-based intelligent grid network control - Google Patents
Method for LIN-based intelligent grid network control Download PDFInfo
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- CN105867192A CN105867192A CN201610242412.5A CN201610242412A CN105867192A CN 105867192 A CN105867192 A CN 105867192A CN 201610242412 A CN201610242412 A CN 201610242412A CN 105867192 A CN105867192 A CN 105867192A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- JLYXXMFPNIAWKQ-UHFFFAOYSA-N γ Benzene hexachloride Chemical compound ClC1C(Cl)C(Cl)C(Cl)C(Cl)C1Cl JLYXXMFPNIAWKQ-UHFFFAOYSA-N 0.000 title abstract 2
- 238000004891 communication Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000004378 air conditioning Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/08—Air inlets for cooling; Shutters or blinds therefor
- B60K11/085—Air inlets for cooling; Shutters or blinds therefor with adjustable shutters or blinds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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- Engineering & Computer Science (AREA)
- Small-Scale Networks (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a method for LIN-based intelligent grid network control. The method comprises a step (1) of arranging an intelligent grid module on a grid to form an intelligent grid; a step (2) of performing a full vehicle state judgment by an engine management system; a step (3) determining, by the engine management system, grid opening and closing and/or opening range according to judgment results of the step (2); a step (4) of causing the engine management system to communicate with the intelligent grid module through a LIN bus; and a step (5) of implementing opening and closing control of the intelligent grid and/or fault query through the communication in the step (4). By the communication between the engine management system and the intelligent grid module through the LIN bus, the opening and closing control of the grid and fault query are implemented, a harness is simplified, the cost is reduced, fuel economy is improved, the wind resistance coefficient and oil consumption are reduced, and the network communication efficiency and reliability are improved.
Description
Technical field
The present invention relates to whole vehicle state control field, be specifically related to a kind of intelligent grid network control method based on LIN.
Background technology
At present urban air pollution is serious, how to reduce automobile fuel consumption, reduces discharge, improve fuel economy become each greatly
The topic that main engine plants pay special attention to.Intelligence grid is the one of air-inlet grille for automobile device, is arranged on the grid in radiator front
Mouth position.Relatively common air-inlet grille, intelligence grid has can be with the electronic blade of half-twist, can be according to engine water
The height of temperature adjusts the air inlet angle (closing vent when need not cooling) of air-inlet grille in time, has reduction automobile windage
The features such as coefficient, shortening engine warms time, reduction oil consumption, raising automobile dynamic quality.Such as low speed row under road conditions of blocking up
When sailing, grid can actively be opened；When vehicle keeps stabilized speed to travel at super expressway, grid can be automatically switched off to obtain more
Good air force performance, improves fuel economy.Under standard riving condition, typically need not the air cooling added, institute
Intelligent grid is had to keep vent to close.This makes being obviously improved of aerodynamic performance, and contributes to electromotor and faster reach
Preferably operating temperature.Intelligence grid only opens vent when needs air cools down, to keep the temperature of electromotor to locate all the time
In optimum level.
LIN is the abbreviation of Local Interconnect Network, is based on UART/SCI (Universal
Asynchronous Receiver-Transmitter/Serial Communication Interface, universal asynchronous receiving-transmitting
Device/serial communication interface) low cost serial communication protocol, can be used for the multiple fields such as automobile, household electrical appliances, office equipment.LIN is total
The main purpose of line is to provide the automobile-used bus of a kind of low cost, thus is formed and supplement CAN.LIN bus is
Accepted by most of motor corporations in the world and component manufacturer widely, be expected to become generally acknowledged Class A Network standard.
Estimating at coming 10 years, averagely each car will have LIN node about 20.The so whole world will produce 1,200,000,000 LIN joints every year
Point.Visible, the application of LIN also exists huge potential market, and agreement itself also can improve in constantly application.LIN is total
Line has the following characteristics that how serial communication, single wire transmission, flank speed 20Kbit/s, single master are from structure, based on general UART/
The low cost interface hardware of SCI, just can realize synchronizing without crystal oscillator or ceramic oscillator device from node, the transmission of computable signal
Time delay, can be increased or decreased flexibly and at most can connect 16 nodes from node, bus, support that multipacket message passes
Defeated, support diagnostic function.
In sum, prior art exists following technical problem: atmospheric pollution at present is serious, how to reduce automobile oil
Consumption, reduces discharge, improves fuel economy and becomes the topic that Ge great main engine plants pay special attention to.Intelligence grid can be according to electromotor
The height of water temperature adjusts the air inlet angle of air-inlet grille in time, have reduction automobile windage coefficient, shorten the engine warms time,
Reduce oil consumption, improve the features such as automobile dynamic quality.Traditional mechanical full-open type grid then cannot realize these features.
Summary of the invention
For above-mentioned prior art problem, the present invention proposes a kind of intelligent grid network control method based on LIN, solves
Utilizing the different opening of grid to reach to improve fuel economy, reduce the application targets such as windage, final purpose is for reducing oil
Consumption provides a kind of method.
Intelligence grid is made a LIN controller, engine management system by a series of judgement (water temperature height,
Air-conditioning state, grid whether fault etc.) determine the open range of grid, to reach to improve fuel economy, reduce windage etc.
Purpose.Concrete technical scheme is as follows:
A kind of intelligent grid network control method based on LIN, comprises the steps:
(1) intelligence grid modules composition intelligence grid is set on grid；
(2) engine management system carries out whole vehicle state judgement；
(3) engine management system determines the opening and closing of grid, and/or open range according to the judged result of step (2)；
(4) communication is carried out by LIN bus between engine management system and intelligence grid modules；
(5) open and close controlling of intelligence grid, and/or fault inquiry is realized by step (4) described communication.
Further, intelligence grid modules includes that grid and intelligence grid modules, described intelligence grid modules control to connect
Described grid also can control its opening and closing and open range.
Further, whole vehicle state described in step (2) judges to include whether judging water temperature height, air-conditioning state, grid
Fault etc..
Further, arranging engine management system is LIN host node, and intelligence grid modules is that LIN is from node.
Further, step (5) farther includes following algorithm:
(5-1) when ON shelves got to by key, intelligence grid modules normally works；
(5-2) getting to OFF shelves when key from ON shelves, if grid does not fully open, then communication a period of time just meets
Sleep condition.
Further, in step (5-2), when key is after ON shelves get to OFF shelves, if grid does not fully open, send out
After dynamic machine management system is fully opened by LIN signal control grid aperture, and full opening of feedback of status is given by grid
Engine management system, it is 0x3c that engine management system just can send a frame ID, and first character joint is the main claim frame of zero
Intelligence grid modules is made to enter sleep.
Further, a described frame message is SLEEP instruction, and intelligence grid modules is defined herein as receiving SLEEP instruction
Immediately enter sleep state afterwards.
Further, in step (5-2), if intelligence grid modules is not received by SLEEP instruction, when bus free 4 arrives
The when of 10 seconds, intelligence grid modules has to enter into sleep state.
Further, the definition of described free time is not have the conversion between dominant bit and recessive position.
Further, after sleep, inside does not has the merit needing to wake up up in the case of key OFF shelves to intelligence grid modules
Energy；And/or, the LIN communication signal between engine management system and intelligence grid modules includes: message one: LIN ID is
0xF0, the signal of message one realizes engine management system according to the height of engine water temperature, the speed of speed, the state of air-conditioning
Control the open position of grid etc. vehicle condition factor, and the demarcation of grid is asked by engine management system；Message two: LIN
ID is 0xB1, and the signal of message two realizes grid and the position implemented is fed back to engine management system, grid by overvoltage,
The fault such as excess temperature, communication feeds back to engine management system, breaks down, and grid is required to standard-sized sheet.
Compared with currently available technology, the present invention provides the LIN bus marco intelligence grid of a kind of engine management system
Module, it is achieved it carries out different grid apertures in different operating modes, to reach to save wire harness, to improve network communication efficiency and reliable
Property, improve fuel economy, reduce the application target such as oil consumption.Specifically: engine management system with intelligence grid modules it
Between realized the open and close controlling of grid, fault inquiry by the communication of LIN bus, simplify wire harness, reduce cost, improve fuel-economy
Property, reduce air resistance coefficient, reduce oil consumption, network communication efficiency and reliability.
Detailed description of the invention
Describing the present invention below, it is a kind of preferred embodiment in numerous embodiments of the present invention.
In a preferred embodiment,
A kind of intelligent grid network control method based on LIN, comprises the steps: that (1) arranges intelligence lattice on grid
Grid module composition intelligence grid；(2) engine management system carries out whole vehicle state judgement；(3) engine management system is according to step
Suddenly the judged result of (2) determines the opening and closing of grid, and/or open range；(4) engine management system with intelligence grid modules it
Between realized open and close controlling of intelligence grid, and/or fault inquiry by step (4) described communication by (5).
Intelligence grid modules includes that grid and intelligence grid modules, described intelligence grid modules control to connect described grid also
Its opening and closing and open range can be controlled.Whole vehicle state described in step (2) judge to include judging water temperature height, air-conditioning state,
Grid whether fault etc..Arranging engine management system is LIN host node, and intelligence grid modules is that LIN is from node.Step (5)
Farther include following algorithm: (5-1), when ON shelves got to by key, intelligence grid modules normally works；(5-2) when key from
ON shelves get to OFF shelves, if grid does not fully open, then communication a period of time just meets sleep condition.In step (5-2),
When key is after ON shelves get to OFF shelves, if grid does not fully open, engine management system controls lattice by LIN signal
After grid aperture fully opens, and grid by full opening of feedback of status to engine management system, engine management system
Just can send a frame ID is 0x3c, first character joint be zero main claim frame make intelligence grid modules enter sleep.Described
One frame message is SLEEP instruction, and intelligence grid modules immediately enters sleep state defined herein as after receiving SLEEP instruction.
In step (5-2), if intelligence grid modules is not received by SLEEP instruction, when bus free 4 to 10 seconds when, intelligence lattice
Grid module has to enter into sleep state.The definition of described free time is not have the conversion between dominant bit and recessive position.Intelligence grid
After sleep, inside does not has the function needing to wake up up in the case of key OFF shelves to module；And/or, engine management system and intelligence
LIN communication signal between energy grid modules includes: message one: LIN ID is 0xF0, and the signal of message one realizes engine tube
Reason system controls the aperture position of grid according to the height of engine water temperature, the speed of speed, the vehicle condition factor such as state of air-conditioning
Put, and the demarcation of grid is asked by engine management system；Message two: LIN ID is 0xB1, and the signal of message two realizes lattice
The position implemented is fed back to engine management system by grid, and the faults such as overvoltage, excess temperature, communication are fed back to electromotor by grid
Management system, breaks down, and grid is required to standard-sized sheet.
LIN communication signal between engine management system and intelligence grid modules is as follows:
Message one:
LIN ID is 0xF0, the signal of message one mainly realize engine management system according to the height of engine water temperature,
The speed of speed, the vehicle condition factor such as state of air-conditioning control the open position of grid, and engine management system is to grid
Demarcation request.
Table one engine management system is sent to the signal of intelligence grid
Message two:
LIN ID is 0xB1, and the signal of message two mainly realizes grid and the position implemented is fed back to engine management
System, the faults such as overvoltage, excess temperature, communication are fed back to engine management system, break down and (include grid fault, biography by grid
Sensor fault etc.), grid is required to standard-sized sheet.
Table two intelligence grid is sent to the signal of engine management system
Engine management system is LIN host node, and intelligence grid modules is that LIN is from node.Intelligence grid modules is at key
Normally work in the case of getting to ON shelves, at key after ON shelves get to OFF shelves, if grid does not fully open, in addition it is also necessary to logical
News a period of time just meets sleep condition.Sleep and to wake up policy definition up as follows:
Wake up strategy up:
After sleep, inside does not has the function needing to wake up up in the case of key OFF shelves to intelligence grid modules.
Sleep strategy:
Intelligence grid has two kinds of sleep modes:
1. when key is after ON shelves get to OFF shelves, if grid does not fully open, engine management system passes through LIN
Signal controls after grid aperture fully opens, and grid by full opening of feedback of status to engine management system, start
It is 0x3c that machine management system just can send a frame ID, first character joint be zero main claim frame make intelligence grid modules enter
Sleep.This frame message is referred to as SLEEP instruction.Intelligence grid modules is defined herein as vertical after receiving SLEEP instruction (such as table three)
I.e. enter sleep state.
| Data1 | Data2 | Data3 | Data4 | Data5 | Data6 | Data7 | Data8 |
| 0 | 0xFF | 0xFF | 0xFF | 0xFF | 0xFF | 0xFF | 0xFF |
Table three SLEEP instruction
If 2. intelligence grid modules is not received by SLEEP instruction, when bus free 4 to 10 seconds when, intelligence grid mould
Block has to enter into sleep state.
Note: idle definition is not have the conversion between dominant bit and recessive position.
Above the present invention is exemplarily described, it is clear that the present invention implements and is not subject to the restrictions described above,
As long as have employed method design and the various improvement that carry out of technical scheme of the present invention, or the most improved directly apply to other
Close, all within protection scope of the present invention.
Claims (10)
1. an intelligent grid network control method based on LIN, it is characterised in that comprise the steps:
(1) intelligence grid modules composition intelligence grid is set on grid；
(2) engine management system carries out whole vehicle state judgement；
(3) engine management system determines the opening and closing of grid, and/or open range according to the judged result of step (2)；
(4) communication is carried out by LIN bus between engine management system and intelligence grid modules；
(5) open and close controlling of intelligence grid, and/or fault inquiry is realized by step (4) described communication.
2. intelligent grid network control method based on LIN as claimed in claim 1, it is characterised in that intelligence grid modules
Including grid and intelligence grid modules, described intelligence grid modules controls connect described grid and can control its opening and closing and aperture
Scope.
3. intelligent grid network control method based on LIN as claimed in claim 1 or 2, it is characterised in that in step (2)
Described whole vehicle state judges to include judging water temperature height, air-conditioning state, grid whether fault etc..
4. based on LIN the intelligent grid network control method as described in claim 1-3, it is characterised in that electromotor is set
Management system is LIN host node, and intelligence grid modules is that LIN is from node.
5. based on LIN the intelligent grid network control method as described in claim 1-4, it is characterised in that step is entered in (5)
One step includes following algorithm:
(5-1) when ON shelves got to by key, intelligence grid modules normally works；
(5-2) getting to OFF shelves when key from ON shelves, if grid does not fully open, then communication a period of time just meets sleep
Condition.
6. intelligent grid network control method based on LIN as claimed in claim 5, it is characterised in that in step (5-2),
When key is after ON shelves get to OFF shelves, if grid does not fully open, engine management system controls lattice by LIN signal
After grid aperture fully opens, and grid by full opening of feedback of status to engine management system, engine management system
Just can send a frame ID is 0x3c, first character joint be zero main claim frame make intelligence grid modules enter sleep.
7. intelligent grid network control method based on LIN as claimed in claim 6, it is characterised in that a described frame message
For SLEEP instruction, intelligence grid modules immediately enters sleep state defined herein as after receiving SLEEP instruction.
8. intelligent grid network control method based on LIN as claimed in claim 5, it is characterised in that in step (5-2),
If intelligence grid modules is not received by SLEEP instruction, when bus free 4 to 10 seconds when, intelligence grid modules must be entered
Enter sleep state.
9. intelligent grid network control method based on LIN as claimed in claim 8, it is characterised in that determining of described free time
Justice is not have the conversion between dominant bit and recessive position.
10. based on LIN the intelligent grid network control method as described in claim 1-9, it is characterised in that intelligence grid mould
After sleep, inside does not has the function needing to wake up up in the case of key OFF shelves to block；And/or, engine management system and intelligence
LIN communication signal between grid modules includes: message one: LIN ID is 0xF0, and the signal of message one realizes engine management
System controls the open position of grid according to the height of engine water temperature, the speed of speed, the vehicle condition factor such as state of air-conditioning,
And the demarcation request that engine management system is to grid；Message two: LIN ID is 0xB1, and the signal of message two realizes grid will
The position implemented feeds back to engine management system, and the faults such as overvoltage, excess temperature, communication are fed back to engine management by grid
System, breaks down, and grid is required to standard-sized sheet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610242412.5A CN105867192A (en) | 2016-04-19 | 2016-04-19 | Method for LIN-based intelligent grid network control |
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| CN201610242412.5A CN105867192A (en) | 2016-04-19 | 2016-04-19 | Method for LIN-based intelligent grid network control |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109130841A (en) * | 2018-08-16 | 2019-01-04 | 奇瑞汽车股份有限公司 | A kind of grid control method and device |
| CN109606098A (en) * | 2017-10-04 | 2019-04-12 | 丰田自动车株式会社 | Grid shutter controller |
| CN110474128A (en) * | 2019-07-16 | 2019-11-19 | 江苏大学 | A kind of battery module structure and control method based on variable grid |
| CN110539629A (en) * | 2018-05-28 | 2019-12-06 | 长城汽车股份有限公司 | Control method and control system for air inlet grille of electric vehicle and electric vehicle |
| CN112109538A (en) * | 2020-09-25 | 2020-12-22 | 长城汽车股份有限公司 | Fuel vehicle air intake method, device, equipment and storage medium |
| CN113442853A (en) * | 2021-07-31 | 2021-09-28 | 重庆长安汽车股份有限公司 | Active air inlet grille anti-icing device and method |
| CN113997783A (en) * | 2021-11-15 | 2022-02-01 | 东风柳州汽车有限公司 | Active air intake grille control method, system and equipment utilizing neural network |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109606098A (en) * | 2017-10-04 | 2019-04-12 | 丰田自动车株式会社 | Grid shutter controller |
| DE102018120614B4 (en) | 2017-10-04 | 2022-03-31 | Toyota Jidosha Kabushiki Kaisha | Grille shutter control device |
| CN110539629A (en) * | 2018-05-28 | 2019-12-06 | 长城汽车股份有限公司 | Control method and control system for air inlet grille of electric vehicle and electric vehicle |
| CN110539629B (en) * | 2018-05-28 | 2021-05-25 | 长城汽车股份有限公司 | Control method and control system for air inlet grille of electric vehicle and electric vehicle |
| CN109130841A (en) * | 2018-08-16 | 2019-01-04 | 奇瑞汽车股份有限公司 | A kind of grid control method and device |
| CN109130841B (en) * | 2018-08-16 | 2020-08-04 | 奇瑞汽车股份有限公司 | Grid control method and device |
| CN110474128A (en) * | 2019-07-16 | 2019-11-19 | 江苏大学 | A kind of battery module structure and control method based on variable grid |
| CN110474128B (en) * | 2019-07-16 | 2022-09-16 | 江苏大学 | Battery module structure based on variable grating and control method |
| CN112109538A (en) * | 2020-09-25 | 2020-12-22 | 长城汽车股份有限公司 | Fuel vehicle air intake method, device, equipment and storage medium |
| CN113442853A (en) * | 2021-07-31 | 2021-09-28 | 重庆长安汽车股份有限公司 | Active air inlet grille anti-icing device and method |
| CN113997783A (en) * | 2021-11-15 | 2022-02-01 | 东风柳州汽车有限公司 | Active air intake grille control method, system and equipment utilizing neural network |
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Application publication date: 20160817 |