CN202617152U - Vehicle-mounted local area network (LAN) system and automobile with same - Google Patents
Vehicle-mounted local area network (LAN) system and automobile with same Download PDFInfo
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- CN202617152U CN202617152U CN 201220208116 CN201220208116U CN202617152U CN 202617152 U CN202617152 U CN 202617152U CN 201220208116 CN201220208116 CN 201220208116 CN 201220208116 U CN201220208116 U CN 201220208116U CN 202617152 U CN202617152 U CN 202617152U
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Abstract
The utility model provides a vehicle-mounted local area network (LAN) system, which comprises a body control module (BCM), a power bus, a body bus, a combined instrument (CMIC), a chassis control device and a body control device, wherein the BCM is provided with first and second ports; the power bus and the body bus are respectively connected with the first and second ports of the BCM; the CMIC is provided with third and fourth ports, connected with the power bus through the third port and connected with the body bus through the fourth port; the chassis control device is connected with the power bus; and the body control device is connected with the body bus. The vehicle-mounted LAN system has the advantages that the load pressure of the LAN is low, information of each vehicle-mounted controller is conveniently displayed on the CMIC, and the LAN system is convenient to expand. The utility model also provides an automobile with the vehicle-mounted LAN system.
Description
Technical field
The utility model relates to field of automobile, particularly a kind of vehicle-mounted LAN system and have the automobile of this vehicle-mounted LAN system.
Background technology
On traditional automobile, common each functional unit of Control of Automobile is like engine controller EMS, engine anti-theft device IMMO, combination instrument CMIC, safety air sac controller SRS, carry out transfer of data through a bus (CAN) network usually.
Yet because dynamic Control is the car load server, therefore to power plant module, like engine controller EMS, automatic gear-box control unit TCU, reliability of data communication and real-time are the key factors of whole network quality.Need carry out sharing and exchanges data of partial information between engine controller EMS and the automatic gear-box control unit TCU.In addition, the system that some are relevant with Body Control is like Tachographs VDR; Real-time to car load is had relatively high expectations, therefore, if each module on automobile is all carried out transfer of data through a bus (CAN); To cause the bearing load of bus (CAN) excessive; Result in blockage, make data can not be transferred to corresponding position in time, influence the stability and the fail safe of automobile.
Therefore, develop into the network topology structure of multiple bus, yet; In the network topology structure scheme of existing multiple bus because combination instrument is as controller indispensable in the Hyundai Motor, a kind of situation be individually it as a certain network segment; Be the node of a certain bus, other network segment like this, promptly the information of other bus is if show on instrument; Just need transmit through gateway; The easy like this pressure that strengthens gateway, and increased the load of network, also influence instrument and shown the amount of information of other network segment and the promptness that information shows.Another kind of existing scheme, instrument removes to connect the multichannel network segment as gateway, though solved the demonstration problem of information, the function of gateway has increased difficulty and cost that instrument realizes, existing instrument realizes relatively difficulty of this performance.
The utility model content
The utility model is intended to one of solve the problems of the technologies described above at least.
For this reason, a purpose of the utility model is to propose a kind of vehicle-mounted LAN system, and it is little that this system has a local area network (LAN) load pressure, the demonstration of information on combination instrument of convenient various Vehicle Controllers, and this LAN system is convenient to expand.
Another purpose of the utility model is to propose a kind of automobile, and this automobile has the convenient advantage that increases and reduce of mobile unit, is convenient to the expansion of new configuration, new model.
To achieve these goals, the utility model first aspect has proposed a kind of vehicle-mounted LAN system, comprising: car body controller BCM, and said car body controller has first and second ports; The power bus and the Vehicle Body Bus that link to each other with first and second ports of said car body controller BCM respectively; Combination instrument CMIC, said combination instrument CMIC has third and fourth port, and said combination instrument CMIC links to each other with said power bus through said the 3rd port and links to each other with said Vehicle Body Bus through said the 4th port; The chassis control device, said chassis control device links to each other with said power bus; And vehicle body control, said vehicle body control links to each other with said Vehicle Body Bus.
Vehicle-mounted LAN system according to the utility model; Use two CAN buses; Be power bus and Vehicle Body Bus, with car body controller BCM as gateway, the structure that combination instrument CMIC and power bus and Vehicle Body Bus are all linked to each other; Saved information that combination instrument CMIC in the traditional approach is articulated in chassis control device or the vehicle body control in last time on two buses is given combination instrument CMIC through gateway forwards operation; Thus, alleviated the pressure of car body controller BCM, reduced offered load as gateway; And convenient with multiple bus, be sent on the combination instrument CMIC like the information of the mobile unit that articulates on power bus and the Vehicle Body Bus show, message transmission is real-time.In addition; The vehicle-mounted LAN system of the utility model is convenient to expansion, for example when increasing mobile unit newly, can easily this mobile unit be articulated on power bus or the Vehicle Body Bus; Not only do not change the structure of the vehicle-mounted LAN system of the utility model, and stability is strengthened.
In addition, can also have following additional technical characterictic according to the above-mentioned vehicle-mounted LAN system of the utility model:
Said vehicle-mounted LAN system also comprises: diagnose interface DLC, said diagnose interface DLC link to each other with Vehicle Body Bus with said power bus respectively.
Said vehicle-mounted LAN system also comprises: first to fourth resistance; Wherein, Said first resistance is between first port and said power bus of said car body controller BCM; Said second resistance is between second port and said Vehicle Body Bus of said car body controller BCM, and said the 3rd resistance is between the 3rd port and said power bus of said combination instrument CMIC, and said the 4th resistance is between the 4th port and said Vehicle Body Bus of said combination instrument CMIC.
Said first and second incorporating resistors are in said car body controller BCM, and said third and fourth incorporating resistor is in said combination instrument CMIC.
In said first to fourth resistance each is 120 Europe.
Said chassis control device comprises engine controller EMS.
Said chassis control device also comprises one or more of braking anti-lock controller ABS, electric stabilizing system ESP, driving antiskid system ASR, electronic controlled suspension ECAS, engine anti-theft device IMMO, wireless service system GPRS, automatic gear-box control unit TCU and rotary angle transmitter SAS.
Said vehicle body control comprises one or more of Tachographs VDR, car door controller DCM and/or PCM, safety air sac controller SRS and tire pressure monitoring system TPMS.
The second aspect of the utility model has proposed a kind of automobile, comprising: like the described vehicle-mounted LAN system of above-mentioned first aspect.
According to the automobile of the utility model, can increase the mobile unit of other choosing dress according to automobile demand neatly, extensibility is strong, and then is convenient to the expansion of new configuration, new model.In addition, this vehicle-mounted LAN system is simple in structure, has the advantage that promotes automotive performance.
Additional aspect of the utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize through the practice of the utility model.
Description of drawings
Above-mentioned and/or additional aspect of the utility model and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 is the vehicle-mounted LAN system of an embodiment of the utility model.
Embodiment
Describe the embodiment of the utility model below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the utility model, and can not be interpreted as restriction the utility model.
In the description of the utility model, it will be appreciated that term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance.
In the description of the utility model, need to prove that only if clear and definite regulation and qualification are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be to be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly through intermediary, can be the connection of two element internals.For those of ordinary skill in the art, can concrete condition understand the concrete implication of above-mentioned term in the utility model.
Below in conjunction with accompanying drawing the vehicle-mounted LAN system according to the utility model embodiment is described at first.
The vehicle-mounted LAN system of the utility model embodiment is followed the SAEJ1939 agreement, roughly is divided into power bus P-CAN, also claims chassis power bus and Vehicle Body Bus I-CAN, and two buses all can adopt the communication speed of 250Kbps.
Particularly, with reference to figure 1, the vehicle-mounted LAN system of the utility model embodiment comprises: car body controller BCM, power bus P-CAN, Vehicle Body Bus I-CAN, combination instrument CMIC, chassis control device 110 and vehicle body control 120.Wherein:
Car body controller BCM has the first port C1 and the second port C2; In this example, the function of car body controller BCM integrated gateway is carried out different segment; Be conversion of signals and message forwarding between power bus P-CAN and the Vehicle Body Bus I-CAN etc.; For example, be articulated in controller on the power bus, then will pass through car body controller and carry out between the two conversion of signals and forwarding etc. as communicating with the controller that is articulated on the Vehicle Body Bus I-CAN.
Power bus P-CAN links to each other with the second port C2 with the car body controller BCM first port C1 respectively with Vehicle Body Bus I-CAN.
Combination instrument CMIC has the 3rd port D1 and the 4th port D2, and combination instrument CMIC links to each other with power bus P-CAN through the 3rd port D1, and combination instrument CMIC links to each other with Vehicle Body Bus I-CAN through the 4th port D2.Thus, can make things convenient for combination instrument CMIC to read to be articulated in the data of the controller on power bus P-CAN and the Vehicle Body Bus I-CAN.For example; Be articulated on the bus CAN than traditional combination instrument CMIC; As be articulated in power bus P-CAN or Vehicle Body Bus I-CAN; Have the advantage that alleviates gateway pressure, reduces offered load, and can show the information of the controller that articulates on the different bus convenient, in real time at combination instrument.Particularly; The combination instrument CMIC of the embodiment of the utility model and different buses all link to each other with Vehicle Body Bus I-CAN like power bus P-CAN, when combination instrument CMIC need obtain the controller information that is articulated on any bus; All need not to carry out conversion of signals and message forwarding through car body controller BCM; Therefore, can alleviate gateway pressure, reduce offered load, and improve the speed that combination instrument CMIC obtains information.
Chassis control device 110 links to each other with power bus P-CAN.Vehicle body control 120 links to each other with Vehicle Body Bus I-CAN.In some instances; Chassis control device 110 can carry out data broadcastings such as information respectively with vehicle body control 120 on power bus P-CAN and Vehicle Body Bus I-CAN; So that the equipment such as other Vehicle Controller that are articulated on power bus P-CAN or the Vehicle Body Bus I-CAN obtain the information of this broadcasting, thereby realize the communication between the vehicle-mounted equipment such as different controllers.
Vehicle-mounted LAN system according to the utility model embodiment; Use two CAN buses; Be power bus P-CAN and Vehicle Body Bus I-CAN, with car body controller BCM as gateway, the structure that combination instrument CMIC and power bus P-CAN and Vehicle Body Bus I-CAN are all linked to each other; Saved information that combination instrument CMIC in the traditional approach is articulated in chassis control device 110 or the vehicle body control 120 in last time on two buses is given combination instrument CMIC through gateway forwards operation; Thus, alleviated the pressure of car body controller BCM, reduced offered load as gateway; And convenient with multiple bus, be sent on the combination instrument CMIC like the information of the mobile unit that articulates on power bus P-CAN and the Vehicle Body Bus I-CAN show, message transmission is real-time.In addition; The vehicle-mounted LAN system of the utility model embodiment is convenient to expansion; For example when increasing mobile unit newly; Can easily this mobile unit be articulated on power bus P-CAN or the Vehicle Body Bus I-CAN, not only do not change the structure of the vehicle-mounted LAN system of the utility model embodiment, and stability be strengthened.
In conjunction with Fig. 1, the vehicle-mounted LAN system of the utility model embodiment also comprises diagnose interface DLC, and this diagnose interface DLC links to each other with Vehicle Body Bus I-CAN with power bus P-CAN respectively.Thus; Alleviated the pressure of car body controller BCM as gateway; Reduced offered load, and convenient multiple bus, like the inline diagnosis of the mobile unit that articulates on power bus P-CAN and the Vehicle Body Bus I-CAN; Can be in real time, the vehicle-mounted LAN system to car load carries out network monitor all sidedly, guarantees the operate as normal of vehicle-mounted LAN system.
Combine Fig. 1 once more, in some instances, above-mentioned vehicle-mounted LAN system also comprises first resistance R 1, second resistance R 2, the 3rd resistance R 3 and the 4th resistance R 4.
Wherein: first resistance R 1 is between the first port C1 and power bus P-CAN of car body controller BCM.Second resistance R 2 is between the second port C2 and Vehicle Body Bus I-CAN of car body controller BCM.The 3rd resistance R 3 is between the 3rd port D1 and power bus P-CAN of combination instrument CMIC.The 4th resistance R 4 is between the 4th port D2 and Vehicle Body Bus I-CAN of combination instrument CMIC.
Furthermore, first resistance R 1 and second resistance R 2 are built in (as shown in Figure 1, the position at R1 and R2 place) among the car body controller BCM.The 3rd resistance R 3 and the 4th resistance R 4 are built in (as shown in Figure 1, the position at R3 and R4 place) among the combination instrument CMIC.Need to prove that in other example of the utility model, first resistance R 1 also can be external between car body controller BCM and power bus P-CAN, likewise, second resistance R 2 also can be external between car body controller BCM and Vehicle Body Bus I-CAN.In addition, the 3rd resistance R 3 also can be external between combination instrument CMIC and power bus P-CAN, the 4th resistance R 3 also can be external between combination instrument CMIC and Vehicle Body Bus I-CAN.In some instances, each in first resistance R 1, second resistance R 2, the 3rd resistance R 3 and the 4th resistance R 4 is 120 Europe.Particularly; Because car body controller BCM and combination instrument CMIC are the necessary devices of automobile, therefore, the common node of fixing car body controller BCM and combination instrument CMIC as two-way CAN bus; All built-in two terminal resistances; So that increase and decrease the devices such as controller of other choosing dress neatly according to the car load demand, expansion is good, helps the expansion of new configuration, new model.
In conjunction with Fig. 1, chassis control device 110 comprises: engine controller EMS.
Further, chassis control device 110 also can include but not limited to: one or more of braking anti-lock controller ABS, electric stabilizing system ESP, driving antiskid system ASR, electronic controlled suspension ECAS, engine anti-theft device IMMO, wireless service system GPRS, automatic gear-box control unit TCU and rotary angle transmitter SAS.
Vehicle body control 120 includes but not limited to: Tachographs VDR, car door controller DCM and/or PCM, safety air sac controller SRS and tire pressure monitoring system TPMS one or more.Combine Fig. 1 once more, show the example that comprises above-mentioned repertoire parts.
It will be appreciated that chassis control device 110 also can comprise other functional part with vehicle body control 120.For example, for some vehicle, vehicle body control 120 also can comprise air-conditioning system HVAC, intelligent switch control system SC or the AFS of follow-up steering system or the like.Likewise, chassis control device 110 also can comprise power taking controller PSM and the RET of retarder system or the like.
In addition, in other example of the utility model, can be according to the configuration needs of automobile, increase or minimizing are articulated in the devices such as controller on power bus P-CAN and/or the Vehicle Body Bus I-CAN neatly, are beneficial to the expansion of new model.
In the further example of the utility model, a kind of automobile has been proposed, this automobile has the described vehicle-mounted LAN system of the foregoing description.
According to the automobile of the vehicle-mounted LAN system of the utility model embodiment with the foregoing description, can increase the mobile unit of other choosing dress according to automobile demand neatly, extensibility is strong, and then is convenient to the expansion of new configuration, new model.In addition, this vehicle-mounted LAN system is simple in structure, has the advantage that promotes automotive performance.。
In addition, all be known for a person skilled in the art according to other formation and the operation of the automobile of the utility model embodiment, do not do description here.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained among at least one embodiment or example of the utility model.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although illustrated and described the embodiment of the utility model; Those having ordinary skill in the art will appreciate that: under the situation of principle that does not break away from the utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, the scope of the utility model is claim and be equal to and limit.
Claims (9)
1. a vehicle-mounted LAN system is characterized in that, comprising:
Car body controller BCM, said car body controller BCM has first and second ports;
The power bus and the Vehicle Body Bus that link to each other with first and second ports of said car body controller BCM respectively;
Combination instrument CMIC, said combination instrument CMIC has third and fourth port, and said combination instrument CMIC links to each other with said power bus through said the 3rd port and links to each other with said Vehicle Body Bus through said the 4th port;
The chassis control device, said chassis control device links to each other with said power bus; And
Vehicle body control, said vehicle body control links to each other with said Vehicle Body Bus.
2. vehicle-mounted LAN system according to claim 1 is characterized in that, also comprises:
Diagnose interface DLC, said diagnose interface DLC link to each other with Vehicle Body Bus with said power bus respectively.
3. vehicle-mounted LAN system according to claim 1; It is characterized in that; Also comprise first to fourth resistance; Wherein, said first resistance is between first port and said power bus of said car body controller BCM, and said second resistance is between second port and said Vehicle Body Bus of said car body controller BCM; Said the 3rd resistance is between the 3rd port and said power bus of said combination instrument CMIC, and said the 4th resistance is between the 4th port and said Vehicle Body Bus of said combination instrument CMIC.
4. vehicle-mounted LAN system according to claim 3 is characterized in that, said first and second incorporating resistors are in said car body controller BCM, and said third and fourth incorporating resistor is in said combination instrument CMIC.
5. vehicle-mounted LAN system according to claim 3 is characterized in that, each in said first to fourth resistance is 120 Europe.
6. vehicle-mounted LAN system according to claim 1 is characterized in that, said chassis control device comprises engine controller EMS.
7. vehicle-mounted LAN system according to claim 1; It is characterized in that said chassis control device also comprises: one or more of braking anti-lock controller ABS, electric stabilizing system ESP, driving antiskid system ASR, electronic controlled suspension ECAS, engine anti-theft device IMMO, wireless service system GPRS, automatic gear-box control unit TCU and rotary angle transmitter SAS.
8. vehicle-mounted LAN system according to claim 1 is characterized in that, said vehicle body control comprises one or more of Tachographs VDR, car door controller DCM and/or PCM, safety air sac controller SRS and tire pressure monitoring system TPMS.
9. an automobile is characterized in that, comprising: like each described vehicle-mounted LAN system of claim 1-8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220208116 CN202617152U (en) | 2012-05-09 | 2012-05-09 | Vehicle-mounted local area network (LAN) system and automobile with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220208116 CN202617152U (en) | 2012-05-09 | 2012-05-09 | Vehicle-mounted local area network (LAN) system and automobile with same |
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| CN202617152U true CN202617152U (en) | 2012-12-19 |
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| CN 201220208116 Expired - Fee Related CN202617152U (en) | 2012-05-09 | 2012-05-09 | Vehicle-mounted local area network (LAN) system and automobile with same |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608718A (en) * | 2014-12-09 | 2015-05-13 | 南昌大学 | Novel electric car intelligent car body and intelligent chassis designing method |
| CN104852947A (en) * | 2014-03-18 | 2015-08-19 | 北汽福田汽车股份有限公司 | CAN network topology structure of vehicle and vehicle using same |
| CN105501156A (en) * | 2016-01-22 | 2016-04-20 | 蔚来汽车有限公司 | Automotive electrical system and isolation system for same |
| CN108600065A (en) * | 2018-04-04 | 2018-09-28 | 北京福田戴姆勒汽车有限公司 | The CAN bus system and vehicle of vehicle |
| CN113176743A (en) * | 2021-03-25 | 2021-07-27 | 四川百纳科技有限责任公司 | CAN network physical layer diagnosis resistance self-adaptive circuit and method |
| WO2021259234A1 (en) * | 2020-06-24 | 2021-12-30 | 阿里巴巴集团控股有限公司 | Linear and movable loader can bus network access unit, and related method therefor |
-
2012
- 2012-05-09 CN CN 201220208116 patent/CN202617152U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852947A (en) * | 2014-03-18 | 2015-08-19 | 北汽福田汽车股份有限公司 | CAN network topology structure of vehicle and vehicle using same |
| CN104608718A (en) * | 2014-12-09 | 2015-05-13 | 南昌大学 | Novel electric car intelligent car body and intelligent chassis designing method |
| CN105501156A (en) * | 2016-01-22 | 2016-04-20 | 蔚来汽车有限公司 | Automotive electrical system and isolation system for same |
| CN108600065A (en) * | 2018-04-04 | 2018-09-28 | 北京福田戴姆勒汽车有限公司 | The CAN bus system and vehicle of vehicle |
| WO2021259234A1 (en) * | 2020-06-24 | 2021-12-30 | 阿里巴巴集团控股有限公司 | Linear and movable loader can bus network access unit, and related method therefor |
| CN113176743A (en) * | 2021-03-25 | 2021-07-27 | 四川百纳科技有限责任公司 | CAN network physical layer diagnosis resistance self-adaptive circuit and method |
| CN113176743B (en) * | 2021-03-25 | 2022-11-15 | 四川百纳科技有限责任公司 | CAN network physical layer diagnosis resistance self-adaptive circuit and method |
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Granted publication date: 20121219 Termination date: 20170509 |
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