CN103458017A - Routing system of local area networks and communication method thereof - Google Patents
Routing system of local area networks and communication method thereof Download PDFInfo
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- CN103458017A CN103458017A CN2013103715105A CN201310371510A CN103458017A CN 103458017 A CN103458017 A CN 103458017A CN 2013103715105 A CN2013103715105 A CN 2013103715105A CN 201310371510 A CN201310371510 A CN 201310371510A CN 103458017 A CN103458017 A CN 103458017A
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Abstract
The invention relates to a routing system of local area networks and a communication method thereof. The routing system of the local area networks and the communication method thereof are applied to vehicles. The routing system comprises a plurality of local area networks, at least one first electronic control unit, at least one second electronic control unit and a routing module. The local area networks comprise at least the first local area network and the second local area network. The first electronic control unit is electrically connected to the first local area network and used for generating a first signal package including first state data of the vehicles. The second electronic control unit is electrically connected to the second local area network and used for generating a second signal package including second state data of the vehicles. The routing module judges the transmission priority of the first signal package and the second signal package according to the first state data, the second state data and the working conditions of the vehicles, and transmits the first signal package and the second signal package according to the judged transmission priority. The routing system of the local area networks and the communication method thereof can solve the problem of routing scheduling of vehicle-mounted bus network communications, and improve the processing efficiency of information.
Description
Technical field
The present invention relates to a kind of route system of LAN, particularly a kind of route system and communication means thereof that is applied to the LAN of vehicle.
Background technology
Fast development along with auto electronic control technology and Technology of Hybrid Electric Vehicle, be disposed at the huge electronic control unit of quantity in vehicle, its division of labor more and more become more meticulous and function also more and more diversified, make the communication network that connects each electronic control unit also become and become increasingly complex.The signal that automobile-used communication network is produced by each electronic control unit in order to transmission, traditional control area net（CAN） network (Control Area Network is called for short CAN) system, because its transmission bandwidth is less, be difficult to process in real time and transmitted quantity huge and complicated signal like this.Therefore, how to solve the signal that the fast development of auto electronic control technology and Technology of Hybrid Electric Vehicle brings and process the problems such as timeliness and the scheduling of communication route, the performances such as the further fail safe of lifting vehicle, handling and comfortableness, be purpose of the present invention.
Summary of the invention
Purpose of the present invention is exactly at the route system that a kind of LAN is provided and communication means thereof, can solve the problem of traditional vehicle bus network communication route scheduling, and can improve the processing timeliness of information.
The invention provides a kind of route system of LAN, be applied in vehicle, it comprises: a plurality of LAN, at least one the first electronic control unit, at least one the second electronic control unit and routing module.A plurality of LAN, at least comprise the first LAN and the second LAN.The first electronic control unit is electrically connected at the first LAN, comprises the first signal package of vehicle the first status data in order to generation.The second electronic control unit is electrically connected at the second LAN, comprises the secondary signal package of vehicle the second status data in order to generation.Routing module is according to the first status data, the second status data and the residing operating mode of vehicle, and the transmission priority of judgement first signal package and secondary signal package, transmitted first signal package and secondary signal package according to the transmission priority after judgement.
In addition, the invention provides a kind of communication means of route system of LAN, comprise the following steps: to receive first signal package and secondary signal package, obtain the first status data and the second status data; According to this first status data, this second status data and the residing operating mode of vehicle, judge the transmission priority of this first signal package and this secondary signal package; And transmitted this first signal package and this secondary signal package according to the transmission priority after judgement.
The present invention is according to difference in functionality, and routing module is divided into a plurality of control area net（CAN） networks by vehicle-mounted bus, and the electronic control unit that function is close is configured in same control area net（CAN） network, can guarantee the real-time of communication to each other; The electronic control unit of different control area net（CAN） networks is a small amount of communication of necessity to each other, such as: the information such as power, braking, startup, intelligent start-stop function, via routing module, realize information interaction, therefore the problem of traditional vehicle bus network communication route scheduling can be solved, and the processing timeliness of information can be improved.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, and for above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and the cooperation accompanying drawing, be described in detail as follows.
The accompanying drawing explanation
The calcspar of the route system of the LAN that Fig. 1 is embodiment of the present invention proposition.
The flow chart of steps of the communication means of the route system that Fig. 2 A to Fig. 2 B is embodiment of the present invention proposition.
Embodiment
Reach for further setting forth the present invention technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, route system and its embodiment of communication means, structure, feature and the effect of the LAN that foundation the present invention is proposed, be described in detail as follows.
Relevant aforementioned and other technology contents of the present invention, Characteristic, can clearly present in following the cooperation in describing in detail with reference to graphic preferred embodiment.By the explanation of embodiment, when can be to reach technological means and the effect that predetermined purpose takes to be able to more deeply and concrete understanding to the present invention, yet appended graphic only being to provide with reference to the use with explanation not be used for the present invention is limited.
The calcspar of the route system of the LAN that Fig. 1 is embodiment of the present invention proposition.
Please refer to Fig. 1, the present invention, according to difference in functionality, is divided into a plurality of control area net（CAN） networks (Controller Area Network is called for short CAN) by vehicle-mounted bus, is electrically connected at respectively routing module 100.Each control area net（CAN） network also can connect the local internet network again, and (Local Interconnect Network is called for short LIN, figure does not show), each control area net（CAN） network and each local internet network connect a plurality of electronic control units (Electronic Control Unit is called for short ECU).Dynamic Control LAN 10 connects a plurality of first electronic control units 111 relevant to controlling power to 11n, and the first electronic control unit 111 to 11n can be engine control system, double-clutch speed changer, Vehicle Stability System, steering wheel angle sensor, electric booster steering device, servo-actuated headlight and air bag module etc.A plurality of second electronic control units 211 to 21n relevant to Body Control of Body Control LAN 20 connection, instrument module 220 and power management module 230, the second electronic control units 211 to 21n can be speed limit display system, car body controller, steering column lock and intelligence and enter starting system etc.Auxiliary power control area net（CAN） network 30 connects a plurality of electronic control units relevant to new forms of energy 311 to 31n and instrument module 220, the electronic control unit 311 to 31n that new forms of energy are relevant comprises main frame electric control system, whole-control system, energy-recuperation system and battery management system etc., and the signal package that comprises vehicle status data that the electronic control unit that each new forms of energy are relevant produces can directly be sent to instrument module 220.The electronic control unit that function is close is configured in same control area net（CAN） network, can guarantee the real-time of communication to each other; The electronic control unit of different control area net（CAN） networks is a small amount of communication of necessity to each other, such as: the information such as power, braking, startup, intelligent start-stop function, realize via routing module 100 alternately.
The flow chart of steps of the communication means that Fig. 2 A to Fig. 2 B is embodiment of the present invention proposition.
Please refer to Fig. 2 A, the route system of the LAN shown in Fig. 1 of take is example, at first, routing module 100 carries out step S201, the first signal package of the first status data that comprises vehicle that gateway 101 produces via dynamic Control LAN 10 reception the first electronic control units 111 respectively reaches the secondary signal package of the second status data that comprises vehicle produced via Body Control LAN 20 reception the second electronic control units 211, wherein the first signal package comprises the first default transmission priority, the secondary signal package comprises the second default transmission priority, the transmission priority of each signal package starts to finish to (111) according to (000) with binary coding, (000) transmission priority is the highest and transmission priorities (111) are minimum.Then, carry out step S202, the vehicle power supply that comprises that the signal package that comprises the Vehicular battery status data that gateway 101 produces via Body Control LAN 20 receiving instrument modules 220 and Vehicular power management module 230 produce is used the signal package of status data, use status data according to Vehicular battery status data and vehicle power supply, diagnostics port 102 obtains the residing operating mode of vehicle.Then, carry out step S203, diagnostics port 102 is according to the first status data, the second status data and Vehicular battery status data, judge whether to switch to first signal package and the default transmission priority of secondary signal package, if be judged as NO, carry out step S204, gateway 101, according to the order that receives first signal package and secondary signal package, transmits first signal package and secondary signal package; If be judged as YES, carry out step S205.Step S205, use status data according to vehicle power supply, diagnostics port 102 judges whether to need change first signal package and the default transmission priority of secondary signal package, if be judged as NO, carry out step S206, gateway 101, according to first signal package and the default transmission priority of secondary signal package, is transmitted first signal package and this secondary signal package; If be judged as YES, carry out next step S207.
Please refer to again Fig. 2 B, the flow chart shown in hookup 2A, step S207, gateway 101, according to first signal package and secondary signal package transmission priority after changing, is transmitted first signal package and this secondary signal package.It is worth mentioning that, diagnostics port 102 also can comprise register, after completing steps S207, diagnostics port 102 is proceeded step S208, judge whether gateway 101 is transmitted first signal package and secondary signal package according to the transmission priority after judgement, when diagnostics port 102 is judged as a bust this, carry out step S209, record a fault data; Finally, if be judged as YES, enter step S210, routing module 100 finishes this time information interaction work between each control area net（CAN） network, waits information interaction work next time.
In sum, the route system of LAN of the present invention and communication means thereof, according to difference in functionality, routing module is divided into a plurality of control area net（CAN） networks by vehicle-mounted bus, the electronic control unit that function is close is configured in same control area net（CAN） network, can guarantee the real-time of communication to each other; The electronic control unit of different control area net（CAN） networks is a small amount of communication of necessity to each other, such as: the information such as power, braking, startup, intelligent start-stop function, via routing module, realize information interaction, therefore can solve the problem of traditional vehicle bus network communication route scheduling, and can improve the processing timeliness of information, meet the demand of vehicle dynamic real-time operation, reach the fail safe of lifting vehicle, the effect of handling and comfortableness.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (15)
1. the route system of a LAN, be applied in vehicle, it is characterized in that comprising:
A plurality of LAN, be disposed in this vehicle, and it at least comprises the first LAN and the second LAN;
At least one the first electronic control unit, be electrically connected at this first LAN, and in order to produce a first signal package, this first signal package comprises one first status data of this vehicle;
At least one the second electronic control unit, be electrically connected at this second LAN, and in order to produce a secondary signal package, this secondary signal package comprises one second status data of this vehicle; And
At least one routing module, it comprises:
One gateway, be electrically connected at respectively those LAN, after receiving this first signal package and this secondary signal package, transmitted; And
One diagnostics port, be electrically connected at this gateway, receive this first signal package and this secondary signal package in order to this gateway certainly, obtain this first status data and this second status data, according to this first status data, this second status data and the residing operating mode of this vehicle, judge the transmission priority of this first signal package and this secondary signal package, make this gateway be transmitted this first signal package and this secondary signal package according to the transmission priority after judging.
2. the route system of LAN according to claim 1 is characterized in that:
This gateway comprises a plurality of interfaces, is electrically connected at respectively those LAN and this diagnostics port, and in order to receive and signal transmission, those interfaces at least comprise:
First interface, be electrically connected at this first LAN;
The second interface, be electrically connected at this first LAN; And
The diagnostics port interface, be electrically connected at this diagnostics port.
3. the route system of LAN according to claim 1, it is characterized in that: this first signal package comprises one first default transmission priority; This secondary signal package comprises one second default transmission priority.
4. the route system of LAN according to claim 3, it is characterized in that: more comprise the instrument module and the power management module that are electrically connected at this gateway, in order to generation, comprise that the battery status data of this vehicle and the power supply of this vehicle are used status data.
5. the route system of LAN according to claim 4, it is characterized in that: this diagnostics port receives the battery status data of this vehicle, in order to obtain the residing operating mode of this vehicle, according to the operating mode of this first status data, this second status data and this vehicle, judge whether to switch to this first signal package and the default transmission priority of this secondary signal package.
6. the route system of LAN according to claim 5, the judgement of this diagnostics port it is characterized in that: when need to switch to this first signal package and the default transmission priority of this secondary signal package, according to this first signal package and the default transmission priority of this secondary signal package, this gateway is transmitted this first signal package and this secondary signal package.
7. the route system of LAN according to claim 5, it is characterized in that: when the judgement of this diagnostics port does not need to switch to this first signal package and the default transmission priority of this secondary signal package, according to the order that receives this first signal package and this secondary signal package, this gateway is transmitted this first signal package and this secondary signal package.
8. the route system of LAN according to claim 4, it is characterized in that: this diagnostics port receives the power supply usage data of this vehicle, in order to obtain the residing operating mode of this vehicle, according to this first status data, this second status data and the residing operating mode of this vehicle, judge whether to need this first signal package of change and the default transmission priority of this secondary signal package.
9. the route system of LAN according to claim 8, it is characterized in that: when this diagnostics port is judged as this first signal package of needs changes and the default transmission priority of this secondary signal package, according to this first signal package and this secondary signal package transmission priority after changing, this gateway is transmitted this first signal package and this secondary signal package.
10. the route system of LAN according to claim 8, it is characterized in that: this diagnostics port is judged as while not needing to change this first signal package and the default transmission priority of this secondary signal package, according to this first signal package and the default transmission priority of this secondary signal package, this gateway is transmitted this first signal package and this secondary signal package.
11. the communication means of the route system of a LAN, is characterized in that comprising the following steps:
Receive first signal package and secondary signal package, obtain the first status data and the second status data;
According to this first status data, this second status data and the residing operating mode of vehicle, judge the transmission priority of this first signal package and this secondary signal package; And
Transmitted this first signal package and this secondary signal package according to the transmission priority after judgement.
12. communication means according to claim 11 is characterized in that: also comprise:
According to the operating mode of this first status data, this second status data and this vehicle, judge whether to switch to this first signal package and the default transmission priority of this secondary signal package; And
When judgement need to switch to this first signal package and the default transmission priority of this secondary signal package, according to this first signal package and the default transmission priority of this secondary signal package, this first signal package and this secondary signal package are transmitted.
13. communication means according to claim 12 is characterized in that: also comprise:
When judgement does not need to switch to this first signal package and the default transmission priority of this secondary signal package, according to the order that receives this first signal package and this secondary signal package, this first signal package and this secondary signal package are transmitted.
14. communication means according to claim 11 is characterized in that: also comprise:
According to this first status data, this second status data and the residing operating mode of this vehicle, judge whether to need this first signal package of change and the default transmission priority of this secondary signal package; When being judged as while needing this first signal package of change and the default transmission priority of this secondary signal package, according to this first signal package and this secondary signal package transmission priority after changing, this first signal package and this secondary signal package are transmitted.
15. communication means according to claim 14 is characterized in that: also comprise:
When being judged as while not needing to change this first signal package and the default transmission priority of this secondary signal package, according to this first signal package and the default transmission priority of this secondary signal package, this first signal package and this secondary signal package are transmitted.
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| CN2013103715105A CN103458017A (en) | 2013-08-23 | 2013-08-23 | Routing system of local area networks and communication method thereof |
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| CN2013103715105A CN103458017A (en) | 2013-08-23 | 2013-08-23 | Routing system of local area networks and communication method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107608330A (en) * | 2017-08-24 | 2018-01-19 | 苏州汇川联合动力***有限公司 | A kind of integrated manipulator of electric automobile, communication system and the means of communication |
| CN110290980A (en) * | 2017-02-28 | 2019-09-27 | 奥迪股份公司 | Motor vehicle with the data network for being divided into multiple separate domain and the method for operation data network |
| CN110710166A (en) * | 2017-06-14 | 2020-01-17 | 住友电气工业株式会社 | Switching device, communication control method, and communication control program |
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| JP2007290540A (en) * | 2006-04-25 | 2007-11-08 | Denso Corp | Vehicular communication system, control device, and on-vehicle navigation device |
| CN101795245A (en) * | 2010-03-20 | 2010-08-04 | 中国第一汽车集团公司 | C302-model gateway control unit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110290980A (en) * | 2017-02-28 | 2019-09-27 | 奥迪股份公司 | Motor vehicle with the data network for being divided into multiple separate domain and the method for operation data network |
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| CN110710166A (en) * | 2017-06-14 | 2020-01-17 | 住友电气工业株式会社 | Switching device, communication control method, and communication control program |
| CN110710166B (en) * | 2017-06-14 | 2021-12-14 | 住友电气工业株式会社 | Switching device, communication control method, and recording medium |
| CN107608330A (en) * | 2017-08-24 | 2018-01-19 | 苏州汇川联合动力***有限公司 | A kind of integrated manipulator of electric automobile, communication system and the means of communication |
| CN107608330B (en) * | 2017-08-24 | 2021-03-05 | 苏州汇川联合动力***有限公司 | Electric vehicle integrated controller, communication system and communication method |
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Application publication date: 20131218 |