CN202089006U - Automobile controller LAN pencil structure - Google Patents
Automobile controller LAN pencil structure Download PDFInfo
- Publication number
- CN202089006U CN202089006U CN2011201792781U CN201120179278U CN202089006U CN 202089006 U CN202089006 U CN 202089006U CN 2011201792781 U CN2011201792781 U CN 2011201792781U CN 201120179278 U CN201120179278 U CN 201120179278U CN 202089006 U CN202089006 U CN 202089006U
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- ecu
- controller
- level interface
- high level
- low level
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Abstract
The utility model discloses a vehicle control unit LAN pencil structure, including a plurality of ECU that arrange in proper order, two adjacent ECU's controller high level interface passes through the wire and connects, and two adjacent ECU's controller low level interface passes through the wire and connects, all be equipped with terminal resistance in the signal transceiver module of first ECU and last ECU among a plurality of ECU that arrange in proper order, connect terminal resistance between the controller high level interface in first and last ECU and the controller low level interface respectively. The utility model discloses make this controller LAN guarantee shortest branch line length when connecting reliably to above-mentioned controller LAN pencil structure still strengthens bus interference killing feature, has improved the interactive efficiency of whole car bus information.
Description
Technical field
The utility model relates to commercial vehicle/comm..vehicle controller local area network technical field, is specifically related to a kind of automobile controller local area network wire harness structure.
Technical background
(Controller Area Network, CAN), this network generally uses as the media of bus message transmission on the automobile automobile controller local area network.Because the particularity of CAN wire harness transmission signals have special standard butted line network topology to stipulate in the world, but this standard has only proposed technical requirements, not mentioned specific implementation.At present, general automobile controller local area network wire harness connection mode is: as shown in Figure 1 with all ECU (Electronic Control Unit, electronic control unit) controller high level interface (CAN-H) is concentrated and is connected in a bit, the controller low level interface (CAN-L) of all ECU is concentrated be connected in a bit.This connection structure causes each controller high level interface or low level interface inconsistent apart from the distance of point of connection, can not guarantee the 1m that all controller high level interfaces or low level interface are all stipulated less than international standard apart from the distance of point of connection, so just cause the bus message transmission unreliable, thereby influenced the reliability of car load.
The utility model content
The purpose of this utility model is at above-mentioned technical matters, and a kind of bus message transmission failure-free automobile controller local area network wire harness structure is provided.
For realizing this purpose, a kind of automobile controller local area network wire harness structure that the utility model is designed, it is characterized in that: it comprises a plurality of ECU that are arranged in order, the controller high level interface of adjacent two ECU connects by lead, the controller low level interface of adjacent two ECU connects by lead, be equipped with terminal resistance in first ECU among the described a plurality of ECU that are arranged in order and the signal transmitting and receiving module of last ECU, connect terminal resistance respectively between the controller high level Interface and Controler low level interface among first and last ECU.
Lead between the controller high level interface of described adjacent two ECU constitutes controller high level trunk main, the length≤40m of described controller high level trunk main.
Lead between the controller low level interface of described adjacent two ECU constitutes controller low level trunk main, the length≤40m of described controller low level trunk main.
The resistance value of described terminal resistance is 120 ohm.
The utility model adopts the controller high level interface of adjacent two ECU to connect by lead, the controller low level interface of adjacent two ECU is by lead bonded assembly controller local area network wiring harness structure, make this controller local area network guarantee the shortest branch line length simultaneously at the connection failure-free, and above-mentioned controller local area network wiring harness structure also strengthens the bus antijamming capability, has improved the mutual efficient of car load bus message.
Description of drawings
Fig. 1 is the structural representation of existing automobile controller local area network wire harness structure;
Fig. 2 is a structural representation of the present utility model;
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
A kind of automobile controller local area network wire harness structure as shown in Figure 2, it comprises a plurality of ECU that are arranged in order, the controller high level interface CAN-H of adjacent two ECU connects by lead, the controller low level interface CAN-L of adjacent two ECU connects by lead, be equipped with terminal resistance R in first ECU among the above-mentioned a plurality of ECU that are arranged in order and the signal transmitting and receiving module of last ECU, be connected terminal resistance R between controller high level interface CAN-H among first ECU and the controller low level interface CAN-L, also be connected terminal resistance R between controller high level interface CAN-H among last ECU and the controller low level interface CAN-L, the resistance value of above-mentioned terminal resistance R is 120 ohm.
In the technique scheme, the lead between the controller high level interface CAN-H of adjacent two ECU constitutes controller high level trunk main, the length≤40m of controller high level trunk main; Lead between the controller low level interface of adjacent two ECU constitutes controller low level trunk main, the length≤40m of controller low level trunk main.
In the technique scheme, adopt ultrasonic welding between adjacent two leads of formation controller high level trunk main; Also adopt ultrasonic welding between adjacent two leads of formation controller low level trunk main.
Above-mentioned automobile controller local area network wire harness structure has guaranteed the shortest branch line length simultaneously at the connection failure-free, has strengthened the antijamming capability of CAN bus, has improved the bus message interactive efficiency of car load.
The content that this specification sheets is not described in detail belongs to this area professional and technical personnel's known prior art.
Claims (4)
1. automobile controller local area network wire harness structure, it is characterized in that: it comprises a plurality of ECU that are arranged in order, the controller high level interface of adjacent two ECU connects by lead, the controller low level interface of adjacent two ECU connects by lead, be equipped with terminal resistance in first ECU among the described a plurality of ECU that are arranged in order and the signal transmitting and receiving module of last ECU, connect described terminal resistance respectively between the controller high level Interface and Controler low level interface among first and last ECU.
2. automobile controller local area network wire harness structure according to claim 1 is characterized in that: the lead between the controller high level interface of described adjacent two ECU constitutes controller high level trunk main, the length≤40m of described controller high level trunk main.
3. automobile controller local area network wire harness structure according to claim 1 and 2, it is characterized in that: the lead between the controller low level interface of described adjacent two ECU constitutes controller low level trunk main, the length≤40m of described controller low level trunk main.
4. automobile controller local area network wire harness structure according to claim 1, it is characterized in that: the resistance value of described terminal resistance is 120 ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201792781U CN202089006U (en) | 2011-05-31 | 2011-05-31 | Automobile controller LAN pencil structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201792781U CN202089006U (en) | 2011-05-31 | 2011-05-31 | Automobile controller LAN pencil structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202089006U true CN202089006U (en) | 2011-12-28 |
Family
ID=45364094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201792781U Expired - Lifetime CN202089006U (en) | 2011-05-31 | 2011-05-31 | Automobile controller LAN pencil structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202089006U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106464560A (en) * | 2014-06-05 | 2017-02-22 | 舍弗勒技术股份两合公司 | Termination of bus system, preferably for use in dual clutch transmission |
| CN111726340A (en) * | 2020-05-22 | 2020-09-29 | 东风汽车集团有限公司 | Local network management method and system based on AUTOSAR |
-
2011
- 2011-05-31 CN CN2011201792781U patent/CN202089006U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106464560A (en) * | 2014-06-05 | 2017-02-22 | 舍弗勒技术股份两合公司 | Termination of bus system, preferably for use in dual clutch transmission |
| CN106464560B (en) * | 2014-06-05 | 2020-03-17 | 舍弗勒技术股份两合公司 | Bus system |
| CN111726340A (en) * | 2020-05-22 | 2020-09-29 | 东风汽车集团有限公司 | Local network management method and system based on AUTOSAR |
| CN111726340B (en) * | 2020-05-22 | 2022-02-11 | 东风汽车集团有限公司 | Local network management method and system based on AUTOSAR |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGFENG COMMERCIAL VEHICLE CO., LTD. Free format text: FORMER OWNER: DONGFENG AUTOMOBILE CO., LTD. Effective date: 20130906 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430056 WUHAN, HUBEI PROVINCE TO: 442001 SHIYAN, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130906 Address after: Shiyan City, Hubei province 442001 City Road No. 2 District zhangjiewan Patentee after: Dongfeng Commercial Vehicle Co.,Ltd. Address before: 430056 Dongfeng Road, Wuhan Economic & Technological Development Zone, Hubei, Wuhan, China, No. 10 Patentee before: DONGFENG MOTER Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111228 |