CN109347711A - A kind of vehicle CAN bus multisegment framework - Google Patents
A kind of vehicle CAN bus multisegment framework Download PDFInfo
- Publication number
- CN109347711A CN109347711A CN201811123676.4A CN201811123676A CN109347711A CN 109347711 A CN109347711 A CN 109347711A CN 201811123676 A CN201811123676 A CN 201811123676A CN 109347711 A CN109347711 A CN 109347711A
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- CN
- China
- Prior art keywords
- controller
- bus
- network segment
- terminal resistance
- vehicle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
Abstract
The present invention provides a kind of vehicle CAN bus multisegment frameworks, including a gateway, a CAN bus power network segment, the safe network segment of a CAN bus, a CAN bus vehicle body network segment and a CAN bus to diagnose network segment；The CAN bus power network segment, the safe network segment of CAN bus, CAN bus vehicle body network segment and CAN bus diagnosis network segment are connect with the gateway.The present invention has the advantages that the quantity of each CAN bus network segment interior joint, CAN bus signal load rate can be controlled rationally；The function of vehicle can be extended under the premise of meeting design requirement.
Description
Technical field
The present invention relates to a kind of network segment frameworks, refer in particular to a kind of vehicle CAN bus multisegment framework.
Background technique
With the development of science and technology being integrated with more and more functions on automobile, the component on automobile is also more and more, such as
Electric oil injector, anti-lock braking device, air bag device etc., and the component on automobile is mostly by electronic control unit
(ECU) it is controlled, causes the electronic control unit (ECU) on automobile also more and more.
However traditional wire laying mode, i.e. electric wire one end are connected with switch, the other end is connect with electrical equipment, will lead to vapour
Number of cables on vehicle sharply increases, and the quality of cable can account for 4% of complete vehicle quality or so, and will lead to circuit structure change
Must be complicated, reduce the reliability of automobile.
In order to solve this problem, current way is to be electronically controlled unit with controller local area network (CAN)
(ECU) information exchange between, but only there are two network segments, i.e. power chassis network segment (PTCAN) and vehicle body network segment (BDCAN).But
There are following problems for this way: with continuing to increase for electronic control unit (ECU) quantity, will cause the total of two network segments
Line signal load rate persistently increases, and leads to signal transmission delay.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of vehicle CAN bus multisegment framework, for rationally controlling
Bus signals load factor reduces signal transmission delay.
The present invention is implemented as follows: a kind of vehicle CAN bus multisegment framework, including a gateway, a CAN bus power
Network segment, the safe network segment of a CAN bus, a CAN bus vehicle body network segment and a CAN bus diagnose network segment；The CAN bus power
The safe network segment of network segment, CAN bus, CAN bus vehicle body network segment and CAN bus diagnosis network segment are connect with the gateway.
Further, the gateway be equipped with a Power Environment Monitoring Network segment interface, a safety net segment interface, a vehicle body network segment interface,
One diagnosis network segment interface, a first terminal resistance, a second terminal resistance and a third terminal resistance；
The Power Environment Monitoring Network segment interface is connect with one end of the first terminal resistance, the other end of the first terminal resistance
It is connect with the CAN bus power network segment；The safety net segment interface is connect with one end of the second terminal resistance, and described
The other end of two terminal resistances is connect with the safe network segment of the CAN bus；The vehicle body network segment interface and the CAN bus vehicle body
Network segment connection；The diagnosis network segment interface is connect with one end of the third terminal resistance, the third terminal resistance it is another
End is connect with CAN bus diagnosis network segment.
Further, the CAN bus power network segment includes an electronics purpose gear controller, a gearbox control and one
Engine controller；The electronics purpose gear controller, gearbox control and engine controller with the first terminal
Resistance connection.
Further, the engine controller is equipped with one the 4th terminal resistance, and the engine controller passes through described
4th terminal resistance is connect with the first terminal resistance.
Further, the safe network segment of the CAN bus includes a booster steering controller, a vehicle body stability controller, one
Tire pressure detection controller, full-automatic park controller, an advanced auxiliary control device and a safety air sac controller；
The booster steering controller, vehicle body stability controller, tire pressure detection controller, automatically park controller, height
Grade pilot controller and safety air sac controller are connect with the second terminal resistance.
Further, the safety air sac controller is equipped with one the 5th terminal resistance, and the safety air sac controller passes through
5th terminal resistance is connect with the second terminal resistance.
Further, the CAN bus vehicle body network segment includes a car body controller, a viewing system controller, a sound equipment
Controller, an air-conditioner controller, a keyless entry and activation system, an electric tail gate controller, a PM2.5 controller, one
Door/window controller, a steering wheel stay lock controller, an instrument controller and a LIN network segment；
The car body controller, viewing system controller, acoustic controller, air-conditioner controller, keyless entry and starting
System, electric tail gate controller, PM2.5 controller, door/window controller, steering wheel stay lock controller and instrument controller with
The vehicle body network segment interface connection；
The LIN network segment is connect with the car body controller.
Further, the car body controller is equipped with one the 6th terminal resistance, and the instrument controller is equipped with one the 7th eventually
Hold resistance；The car body controller and the instrument controller pass through the 6th terminal resistance respectively and the 7th terminal resistance connects
It connects.
Further, the LIN network segment includes a light surplus controller and a stacked switch；The light surplus control
Device and stacked switch processed are connect with the car body controller.
Further, the CAN bus diagnosis network segment includes a diagnostics port；The diagnostics port and the third terminal resistance
Connection.
The present invention has the advantages that
Due to being provided with the CAN bus power network segment, the safe network segment of CAN bus, CAN bus vehicle body network segment and CAN
Bus diagnostic network segment, so that newly-increased ECU can be with the network segment of reasonable distribution to relative free, reasonable control bus signal load
Rate reduces signal transmission delay.
Detailed description of the invention
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is a kind of schematic block circuit diagram of vehicle CAN bus multisegment framework of the present invention.
Detailed description of the invention:
100- vehicle CAN bus multisegment framework, 1- gateway, 11- Power Environment Monitoring Network segment interface, 12- safety net segment interface, 13-
Vehicle body network segment interface, 14- diagnosis network segment interface, 15- first terminal resistance, 16- second terminal resistance, 17- third terminal resistance,
2-CAN bus power network segment, 3-CAN bus safety network segment, 4-CAN bus car body network segment, 5-CAN bus diagnostic network segment, 21- electricity
Sub- purpose gear controller, 22- gearbox control, 23- engine controller, the 4th terminal resistance of 231-, 31- power-assisted steering control
Device, 32- vehicle body stability controller, 33- tire pressure detection controller, 34- automatically park controller, 35- advanced auxiliary control device,
36- safety air sac controller, the 5th terminal resistance of 361-, 41- car body controller, 42- viewing system controller, 43- sound equipment control
Device processed, 44- air-conditioner controller, 45- keyless entry and activation system, 46-PM2.5 controller, 47- electric tail gate controller,
48- steering wheel stays lock controller, and 49- door/window controller, 410 instrument controllers, the 6th terminal resistance of 411-, 4101- the 7th is eventually
Hold resistance, 412-LIN network segment, 4121- light surplus controller, 4122- stacked switch, 51- diagnostics port.
Specific embodiment
Please refer to Fig. 1, a kind of preferred embodiment of vehicle CAN bus multisegment framework 100 of the present invention, including a gateway 1,
One CAN bus power network segment 2, the safe network segment 3 of a CAN bus, a CAN bus vehicle body network segment 4 and a CAN bus diagnose network segment
5；The CAN bus power network segment 2, the safe network segment 3 of CAN bus, CAN bus vehicle body network segment 4 and CAN bus diagnose network segment 5
It is connect with the gateway 1；The CAN bus power network segment 2, the safe network segment 3 of CAN bus, CAN bus vehicle body network segment 4 and
CAN bus diagnoses and carries out information exchange by the gateway 1 between network segment 5；Letter in each network segment between electronic control unit (ECU)
Breath interaction carries out in each network segment.
The gateway 1 is equipped with a Power Environment Monitoring Network segment interface 11, a safety net segment interface 12, a vehicle body network segment interface 13, one
Diagnose network segment interface 14, a first terminal resistance 15, a second terminal resistance 16 and a third terminal resistance 17；Terminal resistance
For weakening the signal reflex in communication cable, in two communication port of lie farthest away；
The Power Environment Monitoring Network segment interface 11 is connect with one end of the first terminal resistance 15, the first terminal resistance 15
The other end is connect with the CAN bus power network segment 2；One end of the safety net segment interface 12 and the second terminal resistance 16
Connection, the other end of the second terminal resistance 16 are connect with the safe network segment 3 of the CAN bus；The vehicle body network segment interface 13
It is connect with the CAN bus vehicle body network segment 4；The diagnosis network segment interface 14 is connect with one end of the third terminal resistance 17,
The other end of the third terminal resistance 17 is connect with CAN bus diagnosis network segment 5.
The CAN bus power network segment 2 starts including an electronics purpose gear controller 21, a gearbox control 22 and one
Machine controller 23；The electronics purpose gear controller 21 becomes for operating automobile gear shift, the gearbox control 22 for controlling
The revolving speed of fast case, the engine controller 23 are used to control the operation power of engine；
The electronics purpose gear controller 21, gearbox control 22 and engine controller 23 with the first terminal
Resistance 15 connects；The CAN bus power network segment 2 is used to control the power correlation module of vehicle.
The engine controller 23 is equipped with one the 4th terminal resistance 231, and the engine controller 23 passes through described the
Four terminal resistances 231 are connect with the first terminal resistance 15.
The safe network segment 3 of CAN bus includes a booster steering controller 31, a vehicle body stability controller 32, a tire pressure
Detecting controller 33, one full-automatic park controller 34, an advanced auxiliary control device 35 and a safety air sac controller 36；
Body Control, the vehicle body stability controller 32 when the booster steering controller 31 is for car assisted turning
For maintaining the stabilization of vehicle body, the tire pressure detection controller 33 to be used to monitor the pressure of automobile tire, described automatically parking
Controller 34 is used for some advanced miscellaneous functions of automobile, the safety for automatic parking, the advanced auxiliary control device 35
Air spring control 36 is used to control the unlatching of air bag, protects driver safety；
The booster steering controller 31, vehicle body stability controller 32, tire pressure detection controller 33, control of automatically parking
Device 34, advanced auxiliary control device 35 and safety air sac controller 36 are connect with the second terminal resistance 16；The CAN is total
The safe network segment 3 of line is used to control the safety-related module of vehicle.
The safety air sac controller 36 is equipped with one the 5th terminal resistance 361, and the safety air sac controller 36 passes through institute
The 5th terminal resistance 361 is stated to connect with the second terminal resistance 16.
The CAN bus vehicle body network segment 4 includes a car body controller 41, a viewing system controller 42, sound equipment control
Device 43, an air-conditioner controller 44, a keyless entry and activation system 45, an electric tail gate controller 47, a PM2.5 controller
46, a door/window controller 49, a steering wheel stay lock controller 48, an instrument controller 410 and a LIN network segment 412；
The car body controller 41 is for controlling the devices such as the light, rain brush, door lock of vehicle body, the viewing system controller
42 for monitoring the environment on vehicle body periphery, improving travel safety, and the acoustic controller 43 is used to control in the broadcasting of sound equipment
Hold and the control of volume, the air-conditioner controller 44 are used to adjust the temperature, the keyless entry and starting of interior air-conditioning
System 45 is used to control the starting of door contact interrupter and vehicle, and the electric tail gate controller 47 is used to control the unlatching of tail-gate,
The PM2.5 controller 46 is used to monitor the concentration of PM2.5, and the door/window controller 49 is used to control unlatching and the pass of door and window
It closes, the steering wheel stays lock controller 48 and is used for locking direction disk, and the instrument controller 410 is in the display of control instrument
Hold；
The car body controller 41, viewing system controller 42, acoustic controller 43, air-conditioner controller 44, without key into
Enter and stays lock controller 48 with activation system 45, electric tail gate controller 47, PM2.5 controller 46, door/window controller 49, steering wheel
And instrument controller 410 is connect with the vehicle body network segment interface 13；The CAN bus vehicle body network segment 4 is for controlling vehicle
Ancillary equipment；
The LIN network segment 412 is connect with the car body controller 41；The car body controller 41 is used as the CAN simultaneously
It is total can be forwarded to the CAN by the node of bus car body network segment 4 and the LIN network segment 412 for signal on the LIN network segment 412
Line vehicle body network segment 4, or the signal of the CAN bus vehicle body network segment 4 is forwarded to the LIN network segment 412.
The car body controller 41 is equipped with one the 6th terminal resistance 411, and the instrument controller 410 is equipped with one the 7th terminal
Resistance 4101；The car body controller 41 and the instrument controller 410 pass through the 6th terminal resistance 411 and the 7th respectively
Terminal resistance 4101 connects；Two communication port of 4 lie farthest away of CAN bus vehicle body network segment are respectively the Body Control
Device 41 and the instrument controller 410.
The first terminal resistance 15, second terminal resistance 16, third terminal resistance 17, the 4th terminal resistance the 231, the 5th
The resistance value of terminal resistance 361, the 6th terminal resistance 411 and the 7th terminal resistance 4101 is 60 Ω.
The LIN network segment 412 includes a light surplus controller 4121 and a stacked switch 4122；The light surplus
Controller 4121 and stacked switch 4122 are connect with the car body controller 41.
The CAN bus diagnosis network segment 5 includes a diagnostics port 51；The diagnostics port 51 connects with the third terminal resistance 17
It connects.Because of the lower only node of CAN bus diagnosis network segment 5, it is not necessary that a terminal resistance is in addition arranged；When CAN bus exists
When failure, diagnostic device is by the diagnostics port 51 to the CAN bus power network segment 2, the safe network segment 3 of CAN bus and CAN
Bus car body network segment 4 is diagnosed.
In conclusion the present invention has the advantages that
Due to being provided with the CAN bus power network segment, the safe network segment of CAN bus, CAN bus vehicle body network segment and CAN
Bus diagnostic network segment, so that newly-increased ECU can be with the network segment of reasonable distribution to relative free, reasonable control bus signal load
Rate reduces signal transmission delay.
Although specific embodiments of the present invention have been described above, those familiar with the art should be managed
Solution, we are merely exemplary described specific embodiment, rather than for the restriction to the scope of the present invention, it is familiar with this
The technical staff in field should be covered of the invention according to modification and variation equivalent made by spirit of the invention
In scope of the claimed protection.
Claims (10)
1. a kind of vehicle CAN bus multisegment framework, it is characterised in that: including a gateway, a CAN bus power network segment, a CAN
Bus safety network segment, a CAN bus vehicle body network segment and a CAN bus diagnose network segment；The CAN bus power network segment, CAN are total
The safe network segment of line, CAN bus vehicle body network segment and CAN bus diagnosis network segment are connect with the gateway.
2. vehicle CAN bus multisegment framework as described in claim 1, it is characterised in that: the gateway is equipped with a power
Network segment interface, a safety net segment interface, a vehicle body network segment interface, a diagnosis network segment interface, a first terminal resistance, one second are eventually
Hold resistance and a third terminal resistance；
The Power Environment Monitoring Network segment interface is connect with one end of the first terminal resistance, the other end of the first terminal resistance and institute
State the connection of CAN bus power network segment；The safety net segment interface is connect with one end of the second terminal resistance, and described second eventually
The other end of end resistance is connect with the safe network segment of the CAN bus；The vehicle body network segment interface and the CAN bus vehicle body network segment
Connection；The diagnosis network segment interface is connect with one end of the third terminal resistance, the other end of the third terminal resistance with
The CAN bus diagnosis network segment connection.
3. vehicle CAN bus multisegment framework as claimed in claim 2, it is characterised in that: the CAN bus power network segment packet
Include an electronics purpose gear controller, a gearbox control and an engine controller；The electronics purpose gear controller, gearbox
Controller and engine controller are connect with the first terminal resistance.
4. vehicle CAN bus multisegment framework as claimed in claim 3, it is characterised in that: the engine controller is equipped with
One the 4th terminal resistance, the engine controller are connect by the 4th terminal resistance with the first terminal resistance.
5. vehicle CAN bus multisegment framework as claimed in claim 2, it is characterised in that: the safe network segment packet of CAN bus
It includes a booster steering controller, a vehicle body stability controller, a tire pressure detection controller, one automatically park controller, one high
Grade pilot controller and a safety air sac controller；
It is the booster steering controller, vehicle body stability controller, tire pressure detection controller, controller of automatically parking, advanced auxiliary
Controller and safety air sac controller is helped to connect with the second terminal resistance.
6. vehicle CAN bus multisegment framework as claimed in claim 5, it is characterised in that: the safety air sac controller is set
There is one the 5th terminal resistance, the safety air sac controller is connected by the 5th terminal resistance and the second terminal resistance
It connects.
7. vehicle CAN bus multisegment framework as claimed in claim 2, it is characterised in that: the CAN bus vehicle body network segment packet
Include a car body controller, a viewing system controller, an acoustic controller, an air-conditioner controller, a keyless entry and starting
System, an electric tail gate controller, a PM2.5 controller, a door/window controller, a steering wheel stay lock controller, an instrument control
Device processed and a LIN network segment；
The car body controller, viewing system controller, acoustic controller, air-conditioner controller, keyless entry and activation system,
Electric tail gate controller, PM2.5 controller, door/window controller, steering wheel stay lock controller and instrument controller with it is described
The connection of vehicle body network segment interface；
The LIN network segment is connect with the car body controller.
8. vehicle CAN bus multisegment framework as claimed in claim 7, it is characterised in that: the car body controller is equipped with one
6th terminal resistance, the instrument controller are equipped with one the 7th terminal resistance；The car body controller and the instrument controller
It is connected respectively by the 6th terminal resistance and the 7th terminal resistance.
9. vehicle CAN bus multisegment framework as claimed in claim 7, it is characterised in that: the LIN network segment includes a light
Surplus controller and a stacked switch；The light surplus controller and stacked switch connect with the car body controller
It connects.
10. vehicle CAN bus multisegment framework as claimed in claim 2, it is characterised in that: the CAN bus diagnoses network segment
Including a diagnostics port；The diagnostics port is connect with the third terminal resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811123676.4A CN109347711B (en) | 2018-09-26 | 2018-09-26 | Vehicle CAN bus multi-network-segment architecture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811123676.4A CN109347711B (en) | 2018-09-26 | 2018-09-26 | Vehicle CAN bus multi-network-segment architecture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109347711A true CN109347711A (en) | 2019-02-15 |
| CN109347711B CN109347711B (en) | 2021-01-26 |
Family
ID=65306971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811123676.4A Expired - Fee Related CN109347711B (en) | 2018-09-26 | 2018-09-26 | Vehicle CAN bus multi-network-segment architecture |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110808894A (en) * | 2019-11-05 | 2020-02-18 | 东软睿驰汽车技术（沈阳）有限公司 | Data transmission method and device based on CAN bus |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109347711B (en) | 2021-01-26 |
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