CN103561054A - Automobile body network management system - Google Patents

Automobile body network management system Download PDF

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Publication number
CN103561054A
CN103561054A CN201310470573.6A CN201310470573A CN103561054A CN 103561054 A CN103561054 A CN 103561054A CN 201310470573 A CN201310470573 A CN 201310470573A CN 103561054 A CN103561054 A CN 103561054A
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CN
China
Prior art keywords
control module
management system
module
network management
car
Prior art date
Application number
CN201310470573.6A
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Chinese (zh)
Inventor
陈泽坚
Original Assignee
埃泰克汽车电子(芜湖)有限公司
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Publication date
Application filed by 埃泰克汽车电子(芜湖)有限公司 filed Critical 埃泰克汽车电子(芜湖)有限公司
Priority to CN201310470573.6A priority Critical patent/CN103561054A/en
Publication of CN103561054A publication Critical patent/CN103561054A/en

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Abstract

The invention discloses an automobile body network management system which is characterized in that the modules, such as an engine management unit, a gearbox control module, a brake system module, a supplementary restraint system module and an electronic assistance control module, which work only after an automobile is started respectively serve as 15-nodes to have access to a CAN bus network, the modules, such as an automatic air-conditioning module, a combination instrument unit, a PEPS control module and an automobile body control module, which depend on a storage battery to continuously work after the automobile is stopped respectively serve as 30-nodes to have access to the CAN bus network, the automobile body control module serves as a 30-main-node, and the automatic air-conditioning module, the combination instrument unit and the PEPS control module serve as slave nodes of the 30-main-node. The automobile body network management system has the advantages that optimal management is carried out on network communication between the control units of the automobile, the phenomenon that electricity of the storage battery is lost when the automobile is stopped is avoided, and the automobile body network management system is suitable for different automobile body network topological structures.

Description

A kind of body of a motor car network management system

Technical field

The present invention relates to body of a motor car communication field, particularly a kind of body of a motor car network management system.

Background technology

Along with the progress of automotive electronic technology and In-vehicle networking technology, in order to meet vehicle intellectualized control, in real time, and safety, it is more and more that electronic control unit is used, and In-vehicle networking is application widely also.

But each electronic control unit property of there are differences at present, power-up initializing time and dormancy awakening definition are inconsistent, and this just likely causes when powering on each electronic control unit signal erroneous judgement disconnected, cannot normal hibernation when car load is flame-out, the faults such as discharged or defective battery.

For the problems referred to above, set up the mutual network communication system of a kind of each electronic control unit and corresponding signal treating method is the problem that prior art need to solve.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of body of a motor car network management system, to reach the object that the network communication between each control unit of automobile is managed.

For achieving the above object, technical scheme of the present invention is, a network management system, is characterized in that: described management system is that the module that engine management unit, gearbox control module, braking system module, air bag module, electronics Power assisted control module etc. are only worked after automotive ignition accesses CAN bus network as 15 nodes respectively; Automatic air condition module, combination instrument unit, PEPS control module, car body control module etc. need after automobile flameout to rely on that storage battery works on respectively as 30 nodes access CAN bus network, car body control module is as 30 host nodes, automatic air condition module, combination instrument unit, PEPS control module as 30 host nodes from node.

30 described host nodes and 30 all have its corresponding network management message from node, comprise wake request, keep waking up and sleep command.

Described management system is after car load is flame-out, car body control module detects car load external signal, if meet dormancy condition, car body control module sends sleep command by its network management message, all the other are 30 from node receives sleep command, enter at once resting state, not in participation network communication, thus the quiescent current of reduction car load.

Described management system enters into after resting state at all electronic control units of car load, if car body control module detects external signal need to show or respond time, car body control module sends wake request in succession by its network management message, keep wake command and application message data, other are 30 from node receives this order, enter at once maintenance wake-up states, and send its network management message, identify it and wake resting state up and apply accordingly message, and respond the application message data that car body control module sends.

The time that described management system decision node lost efficacy is the node initializing time approximately.

In described management system, the all-network node initializing time should be within car load be lighted a fire time of self check.

A network management system, owing to adopting above-mentioned structure, the invention has the advantages that: 1, the network communication between each control unit of automobile is optimized to management, while avoiding car load stop working, each electronic module cannot normal hibernation and waken up; The phenomenon that occurs discharged or defective battery while 2, avoiding stopping; 3, be applicable to different vehicle body network topology structures.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation;

Fig. 1 is a kind of body of a motor car network management system of the present invention structured flowchart;

Fig. 2 is that in a kind of body of a motor car NMS of the present invention, each module enters the logic relation picture of resting state;

Fig. 3 is the logic relation picture that in a kind of body of a motor car NMS of the present invention, each module enters wake-up states;

In Fig. 1-3,1, car body control module; 2, automatic air condition module; 3, combination instrument unit; 4, PEPS control module; 5, engine management unit; 6, gearbox control module; 7, braking system module; 8, air bag module; 9, electronics Power assisted control module.

Embodiment

On automobile, electronic control unit is more and more, car body control module 1, engine management module 5, gearbox control module 6, braking system module 7, air bag module 8, automatic air condition module 2, combination instrument unit 3, PEPS control module 4, electronics Power assisted control module 9 etc., are all as a node on network.And part of nodes is to have storage battery work, is called 30 nodes; Part of nodes is only after igniting, to work, and is called 15 nodes.Specifically as shown in Figure 1, the present invention is that the module that engine management unit 5, gearbox control module 6, braking system module 7, air bag module 8, electronics Power assisted control module 9 etc. are only worked after automotive ignition accesses CAN bus network as 15 nodes respectively; Automatic air condition module 2, combination instrument unit 3, PEPS control module 4, car body control module 1 etc. need after automobile flameout to rely on that storage battery works on respectively as 30 nodes access CAN bus network, car body control module 1 is as 30 host nodes, automatic air condition module 2, combination instrument unit 3, PEPS control module 4 as 30 host nodes from node.

Due to the otherness of each electronic control unit, after powering on, its time that participates in that CAN bus concurrency goes out its first frame message data is inconsistent.The power-up initializing time refer to the time of sending the first frame message CAN data to electronic control unit after powering on, and counts Tinitial.In order to guarantee when initially powering on, each network node proper communication and make correct response, if do not receive the signal of sending node in the continuously corresponding time T timeout of definition receiving node, receiving node will be made corresponding response prompting, as combination instrument is lighted corresponding alarm lamp prompting.Otherwise, if remove to judge the signal of electronic control unit within initialization time Tinitial, will do the response making mistake.Such as, if if the combination instrument unit continuous 2.5sec of 3 definition does not receive the data of air bag module 8, light corresponding airbag fails alarm lamp.But when powering on, 8 initialization times of possible air bag module need 3sec, and instrument just there will be false alarm like this.

For fear of above-mentioned false alarm, the Ttimeout that decision node lost efficacy is node initializing time T initial approximately, and has a suitable threshold value.The all-network node initializing time should be not long, should be within car load is lighted a fire time of self check.

After car load is flame-out, the electronic control unit of 15 nodes enters into off position.And the electronic control unit of 30 nodes still needs communication work.For example, it is anti-that car body control module 1 need to detect key prevention solution, and combination instrument unit 3 needs to show that two sudden strains of a muscle are reported to the police.For the dormancy awakening of unified each 30 nodes after flame-out, using car body control module 1 as 30 host nodes, other nodes are 30 from node.Each node all has its corresponding network management message, comprises wake request, keeps waking up and sleep command.

After car load is flame-out, car body control module 1 detects car load external signal, as door is opened, and key signal, the outside wake source signal such as lampet.If meet dormancy condition, car body control module 1 sends sleep command by its network management message so.All the other enter into resting state, at once not in participation network communication 30 from node receives sleep command.Thereby reduce the quiescent current of car load.

After car load is flame-out, all electronic control units of car load enter into after resting state.Now car body control module 1 detects external signal and need to show or respond, and as door, opens, and key enters, two sudden strains of a muscle, and lampet is opened etc., and car body control module 1 sends wake request in succession by its network management message, keeps wake command and application message data.Other enter at once maintenance wake-up states, and send its network management message 30 from node receives this order, identifying it wakes resting state up and applies accordingly message, and respond the application message data that car body control module 1 sends, and as door is opened indication, two sudden strain of a muscle indications etc.

The present invention and create network management message, and the host node on network is controlled the dormancy awakening of other electronic control units using car body control module 1.Meanwhile, this invention is applicable to the CAN network of high, normal, basic speed, and different vehicle body network topology structures.

By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as the various improvement that adopted technical solution of the present invention to carry out, or directly apply to other occasion without improvement, all within protection scope of the present invention.

Claims (6)

1. a body of a motor car network management system, is characterized in that: described management system is that the module that engine management unit (5), gearbox control module (6), braking system module (7), air bag module (8), electronics Power assisted control module (9) etc. are only worked after automotive ignition accesses CAN bus network as 15 nodes respectively; Automatic air condition module (2), combination instrument unit (3), PEPS control module (4), car body control module (1) etc. need after automobile flameout to rely on that storage battery works on respectively as 30 nodes access CAN bus network, car body control module (1) is as 30 host nodes, automatic air condition module (2), combination instrument unit (3), PEPS control module (4) as 30 host nodes from node.
2. a kind of body of a motor car network management system according to claim 1, is characterized in that: 30 described host nodes and 30 all have its corresponding network management message from node, comprise wake request, keeps waking up and sleep command.
3. a kind of body of a motor car network management system according to claim 1 and 2, it is characterized in that: described management system is after car load is flame-out, car body control module (1) detects car load external signal, if meet dormancy condition, car body control module (1) sends sleep command by its network management message, and all the other enter into resting state 30 from node receives sleep command at once, not in participation network communication, thus the quiescent current of reduction car load.
4. a kind of body of a motor car network management system according to claim 1 and 2, it is characterized in that: described management system enters into after resting state at all electronic control units of car load, if car body control module (1) detects external signal need to show or respond time, car body control module (1) sends wake request in succession by its network management message, keep wake command and application message data, other are 30 from node receives this order, enter at once maintenance wake-up states, and send its network management message, identifying it wakes resting state up and applies accordingly message, and respond the application message data that car body control module (1) sends.
5. a kind of body of a motor car network management system according to claim 1, is characterized in that: the time that described management system decision node lost efficacy is the node initializing time approximately.
6. a kind of body of a motor car network management system according to claim 1, is characterized in that: in described management system, the all-network node initializing time should be within car load be lighted a fire time of self check.
CN201310470573.6A 2013-10-10 2013-10-10 Automobile body network management system CN103561054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310470573.6A CN103561054A (en) 2013-10-10 2013-10-10 Automobile body network management system

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106371424A (en) * 2016-09-30 2017-02-01 安徽江淮汽车股份有限公司 Vehicle sleeps method and system
CN106681311A (en) * 2017-02-23 2017-05-17 北京新能源汽车股份有限公司 Vehicle control method and device
CN106740590A (en) * 2016-11-28 2017-05-31 北京汽车研究总院有限公司 A kind of automotive networking control method and device
CN107493215A (en) * 2016-12-22 2017-12-19 宝沃汽车(中国)有限公司 Condition control method, system and the vehicle of automobile controller

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090055656A (en) * 2007-11-29 2009-06-03 기아자동차주식회사 Remote control system for vehicle and control method thereof
CN101639689A (en) * 2009-09-04 2010-02-03 奇瑞汽车股份有限公司 A can bus network control system
CN102346472A (en) * 2011-08-31 2012-02-08 奇瑞汽车股份有限公司 CAN (Controller Area Network) and LIN (Local Interconnect Network) bus network based vehicle control system
CN102658801A (en) * 2012-04-28 2012-09-12 浙江吉利汽车研究院有限公司杭州分公司 Controller area network (CAN) system network management method for new energy vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20090055656A (en) * 2007-11-29 2009-06-03 기아자동차주식회사 Remote control system for vehicle and control method thereof
CN101639689A (en) * 2009-09-04 2010-02-03 奇瑞汽车股份有限公司 A can bus network control system
CN102346472A (en) * 2011-08-31 2012-02-08 奇瑞汽车股份有限公司 CAN (Controller Area Network) and LIN (Local Interconnect Network) bus network based vehicle control system
CN102658801A (en) * 2012-04-28 2012-09-12 浙江吉利汽车研究院有限公司杭州分公司 Controller area network (CAN) system network management method for new energy vehicle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106371424A (en) * 2016-09-30 2017-02-01 安徽江淮汽车股份有限公司 Vehicle sleeps method and system
CN106371424B (en) * 2016-09-30 2018-10-09 安徽江淮汽车集团股份有限公司 A kind of vehicle dormancy method and system
CN106740590A (en) * 2016-11-28 2017-05-31 北京汽车研究总院有限公司 A kind of automotive networking control method and device
CN107493215A (en) * 2016-12-22 2017-12-19 宝沃汽车(中国)有限公司 Condition control method, system and the vehicle of automobile controller
CN106681311A (en) * 2017-02-23 2017-05-17 北京新能源汽车股份有限公司 Vehicle control method and device

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Application publication date: 20140205

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