CN106627443A - T-BOX information safety protection method based on vehicle characteristic safety levels - Google Patents
T-BOX information safety protection method based on vehicle characteristic safety levels Download PDFInfo
- Publication number
- CN106627443A CN106627443A CN201710079851.3A CN201710079851A CN106627443A CN 106627443 A CN106627443 A CN 106627443A CN 201710079851 A CN201710079851 A CN 201710079851A CN 106627443 A CN106627443 A CN 106627443A
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- CN
- China
- Prior art keywords
- vehicle
- isolation
- box
- electronic control
- message
- Prior art date
- Legal status (The legal status 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 status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric 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
- B60R16/02—Electric 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
- B60R16/023—Electric 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
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
- H04L12/40013—Details regarding a bus controller
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
Abstract
Provided is a T-BOX information safety protection method based on vehicle characteristic safety levels. The method includes the following steps that firstly, the kinetic energy range of a whole vehicle is calculated according to the vehicle running speed range and the vehicle load range, and the vehicle safety levels are divided according to the kinetic energy range and guided into a T-BOX; secondly, the T-BOX acquires the values of two vehicle characteristics, namely the vehicle running speed and the vehicle load, and then judges which safety level does the current vehicle running state belong to according to value calculation of the two vehicle characteristics; thirdly, the T-BOX judges which electronic control systems should be subjected to isolation protection according to the safety levels of the current vehicle running state and sends corresponding isolation starting messages to the electronic control systems; and fourthly, an ECU of the corresponding electronic control system receives the isolation starting messages and is in the corresponding isolation state. According to the method, the task of guiding the vehicle characteristic safety levels into the T-BOX in the first step is only executed once, and then the second step, the third step and the fourth step are repeatedly executed.
Description
Technical field
The present invention relates to automobile information security fields, specially a kind of T-BOX information based on vehicle feature safe class
Safety protecting method.
Background technology
In recent years, automobile industry flourishes, and automobile has been also begun to by purely mechanic system to mechanical-electronic coupling system
Transformation.Present automobile includes many electronic control systems, including electronic control ignition device (ESA), electronic gasoline injection
(EFI), idle speed control (ISC), electronic automatic transmission (ECT), anti-blocking brake system (ABS), Anti-slip regulation system
(ASR), Electro Control Power-steering System system etc..So many electronic control system all carries out information interchange by CAN, such as
Fruit is outside to be had the information for threatening into CAN and then attacks numerous electronic control systems and the information security of automobile will be made
Into serious injury, it is responsible for becoming the focused protection device of information of vehicles safety with the T-BOX of control electronic control system.
Telematics BOX, referred to as vehicle-mounted T-BOX, as shown in Figure 1.It is communicated with main frame by CANBUS, realizes referring to
Order and the transmission of information, including car status information, key state information, control instruction etc..Vehicle-mounted T-BOX can depth reading vapour
Car Can bus datas and proprietary protocol, T-box terminals have the OBD modules that double-core is processed, the CPU architecture of double-core process, difference
Collection automobile bus Dcan, Kcan, PTcan related bus data and proprietary protocol Reverse Turning Control, by GPRS network by number
According to spreading out of Cloud Server, there is provided vehicle condition report, driving report, oil consumption statistics, failure are reminded, break rules and regulations inquiry, location track, drive
Sail behavior, safe antitheft, subscription services, remotely look for car, using mobile phone control car door, window, lamp, lock, loudspeaker, double sudden strains of a muscle, reflective
Control warning and air bag state etc. in mirror folding, skylight, monitoring.
Although it is much according to the automobile information security protection for building with the characteristic of information aspect to have occurred in that in recent years
Mechanism, but how much also do not occur is according to the protecting information safety mechanism for building, high-risk physics with the characteristic of physical layer
The message protection of grade is far from enough, once information attack is received under high-risk operating mode causing to lose control of one's vehicle, consequence is hardly imaginable.
The content of the invention
To solve problem above, the present invention builds safe class according to the physical characteristic related to automotive safety, there is provided one
Plant simple structure, it is easy to implement, can reach the T-BOX protecting information safety mechanism of expectation function target.
The T-BOX protecting information safety mechanism based on vehicle feature safe class that the present invention is provided, with one or more
There is safe class standard of the vehicle feature of significant impact as structure based on vehicle feature to traffic safety, and according to safety etc.
Level implements appropriate safeguard procedures to some electronic control systems.
The vehicle feature is the vehicle driving parameters for having significant impact to traffic safety, the vehicle feature that the present invention chooses
It is according to object kinetic energy formula：Selected, it is Vehicle Speed and car load；The safe class standard
It is to be set up based on selected Vehicle Speed of the invention and car load, the direct reference that safe class standard is divided is
The kinetic energy size of whole vehicle under current running state, whole vehicle includes automobile itself and passenger inside the vehicle, vehicle-mounted cargo etc.
All objects mounted on a vehicle；The safeguard procedures are that electronic control system and T-BOX information are exchanged into isolating for obstruct
Formula is protected, and in the case where current CAN BUS are for in-car common communications network, start message by setting isolation and isolation terminates
Message control electric-control system is exchanged with the information of T-BOX：When to isolate the function that a certain electronic control system is controlled, T-
BOX can send isolation and start message, after this message is received, electronic control system by CAN to the electronic control system
ECU can recognize the isolated instructions that T-BOX is assigned, subsequently into insulation blocking state, in this state, the Electronic Control
System will ignore all CAN messages in addition to isolation end message.When electronic control system receives isolation end message, its
ECU can recognize the isolation END instruction that T-BOX assigns and jump out insulation blocking state, and at this moment the electronic control system can connect again
Receive all CAN messages；The electronic control system is that some are affected than larger electric-control system on traffic safety, including substitute
The automobile active safety systems such as the automobile passive safety systems such as capsule, safety belt, braking anti-lock, tire pressure monitoring and some vehicle bodies
Control system.The function of isolation is divided by function itself to the influence degree of automotive safety, and such as safety belt, air bag etc. are just
Belong to influence degree larger；It is less that power-assisted steering, car light etc. just belong to influence degree.
The present invention the T-BOX protecting information safety mechanism flow charts based on vehicle feature safe class, mainly by with
Under several steps realize：
Step 1：According to Vehicle Speed and the scope of the range computation car load kinetic energy of car load, and car is divided with this
Safe class simultaneously imports T-BOX.
Step 2：T-BOX needs the numerical value for obtaining Vehicle Speed and car load the two vehicle features.Then root
Judge which safe class current motoring condition is according to the numerical computations of the two vehicle features.
Step 3：T-BOX judges to implement which electronic control system according to current motoring condition safe class
Isolating and protecting, and send corresponding isolation message to these electronic control systems.
Step 4：Electronic control system ECU receives isolation message and enters corresponding isolation.
Beneficial effects of the present invention：
1. the present invention considers speed and load the two affects maximum key elements to traffic safety simultaneously, public according to kinetic energy
Formula calculates vehicle energy, and is two vehicle feature speed of overall balance according to the safe class for building with car load kinetic energy
To traffic safety effect and load between, the safe class for building is more reasonable.
2. the present invention carries out message protection in driving secure context, has filled up motor field current and has been pacified by protection information
The blank of full indirect protection traffic safety, attacker cannot be in dangerous motoring condition control vehicle so that driving people's
The security of the lives and property is protected in information aspect.
3. the protection of the function isolated form that the present invention is adopted is more biased towards the protection in physical layer, highly reliable, implements letter
List and it is easily achieved, only part electronic control system and T-BOX temporarily disconnecteds information exchange can be just reached into protection
Purpose, with high feasibility.
4. the present invention can retain the connection of other systems function, such as radio reception in the important electric-control system of isolated part
Machine function, navigation feature etc., can make the driving experience of vehicle be protected while security is ensured.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is based on the T-BOX protecting information safety mechanism flow charts of vehicle feature safe class.
Specific embodiment
The specific embodiment of the present invention will be described further below, Fig. 1 is being pacified based on vehicle feature for the present invention
The T-BOX protecting information safety mechanism flow charts of congruent level, step 1：First to import according to car model classification to T-BOX in the present invention
Vehicle safety grade.The division of vehicle safety grade be with by vehicle feature calculate and come car load kinetic energy as foundation, because
This first has to set the number range of vehicle feature.The vehicle feature scope of every kind of vehicle is different, and the present invention is with modal
As a example by three box car.The highway F-Zero of China's car is limited to 120 kilometers, therefore the present invention is by Vehicle Speed
Scope is scheduled on 0km/h to 120km/h；The specified carrying number of common three box car is 5 people, and the average weight of Chinese adult exists
It is 5 × 66kg=330kg, other article load-carryings of car inner and boot in 66kg or so, therefore the totality of occupant
Load-carrying be typically not greater than 100kg, the car body weight of car is usually no more than 2T, that is, 2000kg, so whole automobile weight
Amount is up to 2430kg, therefore according to formulaThe highest kinetic energy that three box car has in motion can be calculated
About 1350MJ.Kinetic energy scope (0～1350MJ) of the present invention according to obtained by calculating has formulated six grades of vehicle feature safe classes：
| Safe class | Kinetic energy scope |
| First safe level | 0～270MJ |
| Second safe level | 270～540MJ |
| 3rd safe level | 540～810MJ |
| 4th safe level | 810～1080MJ |
| 5th safe level | 1080～1350MJ |
| 6th safe level | 1350～∞ MJ |
Step 2：T-BOX needs to obtain Vehicle Speed and car load the two vehicle features in the present invention.Wherein
Vehicle Speed can be obtained by the speedometer of automobile, and car load can be obtained by the pressure sensor positioned at axletree
.When T-BOX obtains the data of the two vehicle features, will be by algorithm set in advance according to kinetic energy formulaMeter
The Dynamic characteristic of Current vehicle is calculated, in then will determine that the vehicle safety characteristic that this Dynamic characteristic numerical value belongs to step 1 importing
Which rank of.
Step 3：T-BOX has determined that now which safe class vehicle is in, and then T-BOX is by root through judgement
Isolation is sent according to safe class to corresponding electronic control system start message.Isolation starts message will transmit in CAN.
The corresponding function isolation of safe class is as shown in the table.
State wherein in the first safe level vehicle is the minimum one-level of security risk, now vehicle be likely to be at stopping or
Person is travelled with very low speed, even if in this case the possibility of automobile generation driving accident is smaller getting in other words
Therefore also will not
| Safe class | Kinetic energy scope | Function is isolated |
| First safe level | 0～270MJ | Do not isolate |
| Second safe level | 270～540MJ | The passive security control system such as safety belt, air bag |
| 3rd safe level | 540～810MJ | The active safety control system such as braking anti-lock, Anti-slip regulation |
| 4th safe level | 810～1080MJ | Body control system and driving control system |
| 5th safe level | 1080～1350MJ | Electric power steering, track keeps the supplementary controlled systems such as accessory system |
| 6th safe level | 1350～∞ MJ | All control systems in addition to the system unrelated with safety |
The safety of occupant is threatened, therefore electronic control system can not be isolated.Second safe level is compared
The degree of danger of the first safe level vehicle it is high some, now may threaten the life peace of occupant if there is accident
Entirely, therefore some ensure that the passive safety system of in-car human life's safety should enter the scope of isolation.When vehicle is in the
During three safe levels, if there is accident, the life of occupant only cannot may be completely protected by passive safety system
Safety, now needs to start to prevent vehicle from accident occur, therefore to ensure that active safety system normally runs, so in the 3rd peace
It is complete and to isolate the active safety control systemic-function such as braking anti-lock, Anti-slip regulation.The danger coefficient of the 4th safe level is again
Increase, now body control system and driving control system can make traffic safety be on the hazard if being invaded, so isolation
The two functions.5th safe level is the most dangerous safe level in the case of rule that observes traffic laws, and now car speed is fast, load
Greatly, it is easy to which being affected causes to lose control of one's vehicle, thus the 5th safe level need some automobile supplementary controlled systems are also isolated
Open, prevent attacker from breaking through these systems and roadability is impacted so as to cause accident.When automobile is in the 6th safety
Driver itself is illegal during level, necessarily occurs in that overload or situation about exceeding the speed limit, and automobile now is in most dangerous work
Condition, any little impact all may can cause very serious consequence, thus will all systems that may influence whether traffic safety it is complete
Portion isolates, and traffic safety is guaranteed to greatest extent.
Step 4：What all electronic control systems ECU being connected with CAN can all receive that T-BOX sent isolates report
Text, but in order to reach the effect for only controlling correspondence electronic control system, only corresponding electronic control system can be added in message
The identifier that ECU could be recognized.When ECU receives isolation message, the identifier that can be checked in message, if None- identified, that
This isolation message will be ignored.Can recognize that the ECU of isolation message will control its electronic control system being located and enter barrier-like
State, in this case the ECU of the electronic control system will ignore except identifier it is corresponding isolation end message in addition to all systems
The outside message of system.Receive discernible isolation end message and will move out isolation.
Step 1 in the present invention imports the task Exactly-once of vehicle feature safe class to T-BOX, then step 2,
Step 3, step 4 is repeated, and reaches the effect that T-BOX is uninterruptedly controlled full car electronic control system.
Particularly, the division of data above and safe class is only embodiments of the invention, not through very accurate
Ground is calculated and simulating, verifying.The present invention provides a kind of scheme thought, and the formulation of safe class can be more rational by working out
Algorithm is accurately formulated according to demand for security.
Vehicle feature in the present invention is in addition to speed and load it is also conceivable to what other weak factors were caused to traffic safety
Affect, consider influence degree of the other factors in addition to kinetic energy to traffic safety, work out new algorithm model, more adduction
The formulation vehicle feature safe class of reason
The inventive method is simply easy to implement, and in driving secure context message protection is carried out so that the life peace of driving people
It is protected in information aspect first entirely, existing automotive safety security system is enriched, to later automobile information security fields
Research there is very far-reaching directive significance, and the new safe class of research that can follow up sets up algorithm, safe class structure side
Method etc., follow-up exploitability is strong, and Research Prospects are extensive.
Claims (3)
1. a kind of T-BOX protecting information safety methods based on vehicle feature safe class, it is characterised in that including following step
Suddenly：
Step 1：According to Vehicle Speed and the scope of the range computation car load kinetic energy of car load, and vehicle peace is divided with this
Congruent level simultaneously imports T-BOX；
Step 2：T-BOX obtains the numerical value of Vehicle Speed and car load the two vehicle features, then according to the two
The numerical computations of vehicle feature judge which safe class current motoring condition is in；
Step 3：T-BOX judges which electronic control system isolation should be implemented to according to current motoring condition safe class
Protection, and corresponding isolation beginning message is sent to these electronic control systems, isolation starts message will be uploaded in CAN
Pass；
Step 4：Electronic control system ECU receives isolation message and enters corresponding isolation, and step 1 to T-BOX imports car
The task Exactly-once of characteristic safe class, then step 2, step 3, step 4 is repeated.
2. the T-BOX protecting information safety methods of vehicle feature safe class are based on according to claim 1, and its feature exists
In by the running status implementation information security protection according to automobile, considering between physical characteristic and information security characteristic
Association, reduce information of vehicles security risk.
3. the T-BOX protecting information safety methods of vehicle feature safe class are based on according to claim 1, and its feature exists
Can all receive the isolation message that T-BOX is sent in, step 4 electronic control system ECU, but in order to reach only control it is right
The effect of electronic control system is answered, the identifier that only corresponding electronic control system ECU could be recognized can be added in message, when
ECU receives isolation message, the identifier that can be checked in message, if None- identified, then will ignore this isolation message, can be with
The ECU of identification isolation message will control its electronic control system being located and enter isolation, in this case the Electronic Control
The ECU of system will ignore all its exterior messages in addition to the corresponding isolation end message of identifier, receive discernible
Isolation end message will move out isolation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079851.3A CN106627443B (en) | 2017-02-15 | 2017-02-15 | A kind of T BOX protecting information safety methods based on vehicle feature safe class |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710079851.3A CN106627443B (en) | 2017-02-15 | 2017-02-15 | A kind of T BOX protecting information safety methods based on vehicle feature safe class |
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| Publication Number | Publication Date |
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| CN106627443A true CN106627443A (en) | 2017-05-10 |
| CN106627443B CN106627443B (en) | 2017-12-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109117313A (en) * | 2018-08-28 | 2019-01-01 | 成都信息工程大学 | A kind of band isolation calamity for mechanism of control vehicle wisdom security gateway and management-control method |
| CN111114433A (en) * | 2020-01-10 | 2020-05-08 | 金龙联合汽车工业（苏州）有限公司 | Three-risk driving behavior monitoring and alarming system |
| CN111443682A (en) * | 2018-12-29 | 2020-07-24 | 北京奇虎科技有限公司 | Safety protection device and method based on vehicle CAN bus structure |
| CN113364805A (en) * | 2021-06-29 | 2021-09-07 | 潍柴动力股份有限公司 | CAN message protection method, device, storage medium and equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100905694B1 (en) * | 2007-08-02 | 2009-07-03 | 동국대학교 경주캠퍼스 산학협력단 | Safety Management System of Vehicle Information |
| CN105279421B (en) * | 2014-06-19 | 2019-07-12 | 上海辇联网络科技有限公司 | A kind of detection system and method for the information security based on car networking access OBD II |
| CN105591858B (en) * | 2015-12-02 | 2019-03-29 | 广州汽车集团股份有限公司 | A kind of automobile-used gateway control method and control device |
| CN106143364B (en) * | 2016-07-22 | 2019-06-11 | 北京航空航天大学 | A kind of electric car distributed director information security method and system |
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2017
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109117313A (en) * | 2018-08-28 | 2019-01-01 | 成都信息工程大学 | A kind of band isolation calamity for mechanism of control vehicle wisdom security gateway and management-control method |
| CN111443682A (en) * | 2018-12-29 | 2020-07-24 | 北京奇虎科技有限公司 | Safety protection device and method based on vehicle CAN bus structure |
| CN111443682B (en) * | 2018-12-29 | 2023-09-01 | 北京奇虎科技有限公司 | Safety protection device and method based on vehicle CAN bus structure |
| CN111114433A (en) * | 2020-01-10 | 2020-05-08 | 金龙联合汽车工业（苏州）有限公司 | Three-risk driving behavior monitoring and alarming system |
| CN113364805A (en) * | 2021-06-29 | 2021-09-07 | 潍柴动力股份有限公司 | CAN message protection method, device, storage medium and equipment |
| CN113364805B (en) * | 2021-06-29 | 2022-04-05 | 潍柴动力股份有限公司 | CAN message protection method, device, storage medium and equipment |
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|---|---|
| CN106627443B (en) | 2017-12-26 |
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