CN108600065A - The CAN bus system and vehicle of vehicle - Google Patents

The CAN bus system and vehicle of vehicle Download PDF

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Publication number
CN108600065A
CN108600065A CN201810297408.8A CN201810297408A CN108600065A CN 108600065 A CN108600065 A CN 108600065A CN 201810297408 A CN201810297408 A CN 201810297408A CN 108600065 A CN108600065 A CN 108600065A
Authority
CN
China
Prior art keywords
bus
vehicle
chassis
control unit
power
Prior art date
Application number
CN201810297408.8A
Other languages
Chinese (zh)
Inventor
李焕新
魏亚芳
王岩
陈思嘉
Original Assignee
北京福田戴姆勒汽车有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 北京福田戴姆勒汽车有限公司 filed Critical 北京福田戴姆勒汽车有限公司
Priority to CN201810297408.8A priority Critical patent/CN108600065A/en
Publication of CN108600065A publication Critical patent/CN108600065A/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. local area networks [LAN], wide area networks [WAN]
    • H04L12/40Bus networks
    • H04L12/40006Architecture of a communication node
    • H04L12/40013Details regarding a bus controller
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric 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
    • B60R16/02Electric 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
    • B60R16/023Electric 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. local area networks [LAN], wide area networks [WAN]
    • H04L12/40Bus networks
    • H04L2012/40208Bus networks characterized by the use of a particular bus standard
    • H04L2012/40215Controller Area Network CAN
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. local area networks [LAN], wide area networks [WAN]
    • H04L12/40Bus networks
    • H04L2012/40267Bus for use in transportation systems
    • H04L2012/40273Bus for use in transportation systems the transportation system being a vehicle

Abstract

The invention discloses a kind of CAN bus system of vehicle and vehicles.The CAN bus system of vehicle, including:Power bus is connected with multiple power electric appliances in the power bus;Body information bus is connected with multiple body electric systems in the body information bus;Chassis bus, the chassis bus for realizing chassis electric appliance control;Vehicle body central control unit, the vehicle body central control unit is connected with the power bus, the body information bus and the chassis bus respectively, the message in the power bus, the body information bus and the chassis bus is monitored and be forwarded, to realize vehicle functions.The CAN bus system of the vehicle of the present invention has the advantages that communication robust is efficient, in addition, can be when adding new node, without carrying out excessive change to line arrangement, therefore, convenient and reliable change, the safety and reliability for vehicle of deducting a percentage can be carried out to vehicle configuration according to demand.

Description

The CAN bus system and vehicle of vehicle

Technical field

The present invention relates to Trend of Auto Manufacturing Technologies field, more particularly to the CAN bus system and vehicle of a kind of vehicle.

Background technology

With the continuous development of automotive electronic technology, the number of various electronic control unit ECU is continuously increased on automobile, even It connects conducting wire also to dramatically increase, thus improves between control unit communication reliability and reduce number of conductors and have become that there is an urgent need to solve Certainly the problem of, meanwhile, the increase of information content keeps the control algolithm of each electronic control unit more complicated, and CAN bus technology Development and application, however, for heavy-duty car, the design of CAN bus is typically more simple, therefore, various electricity on automobile Communication interaction deficient in stability between sub-control unit ECU and reliability, in addition, when there is new electronic control unit ECU to add Fashionable, wiring is also very cumbersome.

Invention content

The present invention is directed to solve at least to a certain extent it is above-mentioned in the related technology the technical issues of one of.

For this purpose, an object of the present invention is to provide a kind of CAN bus systems of vehicle.The CAN bus system of the vehicle System has the advantages that communication robust is efficient, in addition, can be when adding new node, without carrying out excessive change to line arrangement It is dynamic, therefore, convenient and reliable change, the safety and reliability for vehicle of deducting a percentage can be carried out to vehicle configuration according to demand.

It is another object of the present invention to provide a kind of vehicles.

To achieve the goals above, the first aspect of the present invention discloses a kind of CAN bus system of vehicle, including:It is dynamic Power bus is connected with multiple power electric appliances in the power bus;Body information bus is connected in the body information bus Multiple body electric systems;Chassis bus, the chassis bus for realizing chassis electric appliance control;Vehicle body central control unit, institute It states vehicle body central control unit to be respectively connected with the power bus, the body information bus and the chassis bus, with right Message in the power bus, the body information bus and the chassis bus is monitored and forwards, to realize vehicle Function.

The CAN bus system of vehicle according to the ... of the embodiment of the present invention has the advantages that communication robust is efficient, in addition, can be It, therefore, can be according to demand to vehicle configuration progress side without carrying out excessive change to line arrangement when adding new node Just reliable change, the safety and reliability for vehicle of deducting a percentage.

In some instances, multiple power electric appliances in the power bus include control unit of engine EDC, automatic change Fast case control unit AMT, retarder control unit RET, ABS control unit/EBS control units, engine anti-theft IMMO, GPRS Some or all of in.

In some instances, multiple body electric systems of body information bus include instrument, Tachographs VDR, left-hand door control Some or all of in device DCM processed and right door controller PDCM.

In some instances, the instrument carries CMIC3 software platforms.

In some instances, the chassis bus is reserved bus, can be arranged as required to the number of nodes of chassis bus.

In some instances, the communication protocol of the power bus is SAEJ1939, the body information bus, the bottom Disk bus and the communication protocol of the vehicle body central control unit are formulated by protocol requirement.

In some instances, the ID of the instrument in the body information bus is 17x, and the ID of Tachographs is EEx, left The ID of door controller is ECx, and the ID of right door controller is EDx.

The embodiment of the second aspect of the present invention discloses a kind of vehicle, including:According to any of the above-described embodiment Vehicle CAN bus system.Have the advantages that communication robust is efficient between each controller in the vehicle, in addition, can add It, therefore, can be according to demand to vehicle configuration into accommodating without carrying out excessive change to line arrangement when adding new node Reliable change, the safety and reliability for vehicle of deducting a percentage.

In some instances, the vehicle is heavy goods vehicle and tractor truck.

The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description Obviously, or practice through the invention is recognized.

Description of the drawings

The above-mentioned and/or additional aspect and advantage combination following accompanying drawings of the present invention in the description of embodiment to that will become Obviously and it is readily appreciated that, wherein:

Fig. 1 is the structure diagram of the CAN bus system of vehicle according to an embodiment of the invention;

Fig. 2 is the schematic diagram of the CAN bus system of vehicle according to an embodiment of the invention.

Specific implementation mode

The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.

The CAN bus system and vehicle of vehicle according to the ... of the embodiment of the present invention are described below in conjunction with attached drawing.

Fig. 1 is the structure diagram of the CAN bus system of vehicle according to an embodiment of the invention.

The CAN bus system of vehicle according to an embodiment of the invention, suitable for heavy truck vehicle, as heavy goods vehicle, Tractor truck etc..

As shown in Figure 1, and in conjunction with Fig. 2, the CAN bus system 100 of vehicle includes:Power bus 110, body information bus 120, (vehicle body central control unit 140 is known as chassis bus 130 and vehicle body central control unit 140:CBCU, Center Body Control Unit), CBCU is responsible for the forwarding of three tunnel CAN messages as gateway.

Wherein, multiple power electric appliances are connected in power bus 110.Multiple vehicle bodies are connected in body information bus 120 Electric appliance.Chassis bus 130 for realizing chassis electric appliance control.Vehicle body central control unit 140 respectively with power bus 110, Body information bus 120 is connected with chassis bus 130, with to power bus 110, body information bus 120 and chassis bus 130 On message be monitored and forward, to realize vehicle functions.

Multiple power electric appliances in power bus include but not limited to:Control unit of engine EDC, automatic gear-box control Part in unit AMT, retarder control unit RET, ABS control unit/EBS control units, engine anti-theft IMMO, GPRS Or all.The communication protocol of power bus is SAEJ1939, the body information bus, the chassis bus and the vehicle body The communication protocol of central control unit is formulated by protocol requirement.

Specifically, currently, being in compliance with SAEJ1939 agreements greatly, therefore power CAN is (i.e.:Power bus, abbreviation PCAN) On each control unit can be compatible with, communicate.There are diesel engine electronic control unit (EDC), ABS control unit on PCAN (or EBS control units), automatic gear-box control unit (AMT), retarder control unit (RET), engine anti-theft (IMMO), GPRS etc..

Multiple body electric systems of body information bus include but not limited to:Instrument, Tachographs VDR, left-hand door controller Some or all of in DCM and right door controller PDCM.The ID of instrument in body information bus is 17x, Tachographs ID is EEx, and the ID of left-hand door controller is ECx, and the ID of right door controller is EDx.

Vehicle communication protocol is mainly concerned with ICAN, PCAN, gateway routing protocol, wherein the communication protocol of PCAN is abided by International standard SAEJ1939, ICAN and gateway routing protocol need to formulate.

ICAN Protocol Ref SAEJ1939 fully take into account the priority of signal when formulating agreement, consider which signal It is bundled in a message, agreement, which is formulated, to be completed to carry out emulation testing using CANoe softwares later.

Body information CAN is (i.e.:Body information bus, abbreviation ICAN) the main control for realizing body electric system, it can basis The number that CAN nodes are set is needed, mainly there is car body controller BCM, CAN combination instrument (IC), Tachographs (VDR), a left side Door controller (DCM), right door controller (PDCM) etc..

In one embodiment of the invention, instrument carries CMIC3 software platforms.

As shown in table 1, the technology of combination instrument requires as follows:

Table 1

The stitch that table 2 lists combination instrument defines and the effective form of signal, and using two AMP connectors, one is Green, one is red.Instrument reserves the input of 11 railway digitals, wherein the low control in 5 tunnels, 6 road height controls.

Table 2

In addition, some other need the information indicated to driver to be shown in the liquid crystal display of instrument, in addition to picture is shown, There is Chinese prompt.The design of liquid crystal display display logic mainly has the booting page, normally the drive a vehicle page, the malfunction coefficient page, work Indicate that the page, differential lock show the page.The page layout switch operation of liquid crystal display is realized by three pieces of buttons in instrument.

In one embodiment of the invention, chassis bus is reserved bus, can be arranged as required to the section of chassis bus Point quantity.Specifically, chassis CAN is (i.e.:Chassis bus, abbreviation MCAN) the main control for realizing vehicle chassis electric appliance, it can root According to the number for needing that CAN nodes are arranged, the main purpose of setting chassis node is to reduce the company of driver's cabin and chassis docking harness It connects, space, good reliability is saved while reducing harness.Initial stage is designed in CAN bus, road CAN is as reserved, you can meets The needs that development is expanded later, can also reduce the cost of vehicle CAN bus at this stage.That is, MCAN is reserved bus, Extension is can be used as to use.

The CAN bus system of vehicle according to the ... of the embodiment of the present invention has the advantages that communication robust is efficient, in addition, can be It, therefore, can be according to demand to vehicle configuration progress side without carrying out excessive change to line arrangement when adding new node Just reliable change, the safety and reliability for vehicle of deducting a percentage.

Further, embodiment of the invention discloses that a kind of vehicle, including:According to any of the above-described a embodiment The CAN bus system of vehicle.The vehicle is heavy goods vehicle and tractor truck.There is in the vehicle between each controller communication The advantages of stability and high efficiency, in addition, can be when adding new node, without carrying out excessive change to line arrangement, therefore, it can be with Convenient and reliable change is carried out to vehicle configuration according to demand, the safety and reliability for vehicle of deducting a percentage.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It is that must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be It can be combined in any suitable manner in any one or more embodiments or example.In addition, without conflicting with each other, this field Technical staff can carry out the feature of different embodiments or examples described in this specification and different embodiments or examples In conjunction with and combination.

Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changes, replacing and modification.

Claims (9)

1. a kind of CAN bus system of vehicle, which is characterized in that including:
Power bus is connected with multiple power electric appliances in the power bus;
Body information bus is connected with multiple body electric systems in the body information bus;
Chassis bus, the chassis bus for realizing chassis electric appliance control;
Vehicle body central control unit, the vehicle body central control unit respectively with the power bus, the body information bus Be connected with the chassis bus, with to the message in the power bus, the body information bus and the chassis bus into Row monitoring and forwarding, to realize vehicle functions.
2. the CAN bus system of vehicle according to claim 1, which is characterized in that multiple dynamic in the power bus Power electric appliance includes control unit of engine EDC, automatic gear-box control unit AMT, retarder control unit RET, ABS control list Some or all of in member/EBS control units, engine anti-theft IMMO, GPRS.
3. the CAN bus system of vehicle according to claim 1, which is characterized in that multiple vehicle bodies of body information bus Electric appliance includes some or all of in instrument, Tachographs VDR, left-hand door controller DCM and right door controller PDCM.
4. the CAN bus system of vehicle according to claim 3, which is characterized in that it is flat that the instrument carries CMIC3 softwares Platform.
5. the CAN bus system of vehicle according to claim 1, which is characterized in that the chassis bus is reserved bus, It can be arranged as required to the number of nodes of chassis bus.
6. according to the CAN bus system of claim 1-5 any one of them vehicles, which is characterized in that the power bus Communication protocol is SAEJ1939, the body information bus, the chassis bus and the vehicle body central control unit it is logical Letter agreement is formulated by protocol requirement.
7. the CAN bus system of vehicle according to claim 6, which is characterized in that the instrument in the body information bus The ID of table is 17x, and the ID of Tachographs is EEx, and the ID of left-hand door controller is ECx, and the ID of right door controller is EDx.
8. a kind of vehicle, which is characterized in that including:According to the CAN bus system of claim 1-7 any one of them vehicles.
9. vehicle according to claim 8, which is characterized in that the vehicle is heavy goods vehicle and tractor truck.
CN201810297408.8A 2018-04-04 2018-04-04 The CAN bus system and vehicle of vehicle CN108600065A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810297408.8A CN108600065A (en) 2018-04-04 2018-04-04 The CAN bus system and vehicle of vehicle

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Application Number Priority Date Filing Date Title
CN201810297408.8A CN108600065A (en) 2018-04-04 2018-04-04 The CAN bus system and vehicle of vehicle

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110450788A (en) * 2019-07-19 2019-11-15 中国第一汽车股份有限公司 A kind of driving mode switching method, device, equipment and storage medium

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030010890A (en) * 2001-07-27 2003-02-06 주식회사 현대오토넷 Network system of automobile using a CAN protocol
CN202453725U (en) * 2012-02-23 2012-09-26 山西大运汽车制造有限公司 Automotive CAN (Control Area Network) bus system
CN202617152U (en) * 2012-05-09 2012-12-19 北汽福田汽车股份有限公司 Vehicle-mounted local area network (LAN) system and automobile with same
CN102935831A (en) * 2012-10-18 2013-02-20 上海迈拓汽车技术有限公司 Automobile CAN (controller area network) network control system
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
CN205365249U (en) * 2015-12-22 2016-07-06 杭州云乐车辆技术有限公司 Disconnect -type modularization electric automobile instrument

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030010890A (en) * 2001-07-27 2003-02-06 주식회사 현대오토넷 Network system of automobile using a CAN protocol
CN202453725U (en) * 2012-02-23 2012-09-26 山西大运汽车制造有限公司 Automotive CAN (Control Area Network) bus system
CN202617152U (en) * 2012-05-09 2012-12-19 北汽福田汽车股份有限公司 Vehicle-mounted local area network (LAN) system and automobile with same
CN102935831A (en) * 2012-10-18 2013-02-20 上海迈拓汽车技术有限公司 Automobile CAN (controller area network) network control system
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
CN205365249U (en) * 2015-12-22 2016-07-06 杭州云乐车辆技术有限公司 Disconnect -type modularization electric automobile instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110450788A (en) * 2019-07-19 2019-11-15 中国第一汽车股份有限公司 A kind of driving mode switching method, device, equipment and storage medium

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