CN110489143A - FOTA firmware remote update system and its method on new-energy automobile - Google Patents
FOTA firmware remote update system and its method on new-energy automobile Download PDFInfo
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- CN110489143A CN110489143A CN201910648734.3A CN201910648734A CN110489143A CN 110489143 A CN110489143 A CN 110489143A CN 201910648734 A CN201910648734 A CN 201910648734A CN 110489143 A CN110489143 A CN 110489143A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses FOTA (Firmware Over-the-Air) firmware remote upgrade technical solutions on a kind of new-energy automobile, the remote upgrade that the multiple electronic units of new energy vehicle (ECU) are based on intelligent terminal (T-BOX), including entire car controller (VCU), battery management system (BMS), electric machine controller (IPU) and vehicular meter (ICU) are had been achieved at present.Meanwhile in the upload procedure of upgrade package, not only there is the privacy guarantee of hardware softdog, also comprising upgraded in offline packet production be locally stored, ensure that the safety and stability of Full Vehicle System in escalation process significantly.Che Qike realizes mass upgrade by this technology and repairs mobile unit software fault, effectively reduces development risk and recalls cost.
Description
Technical field
The invention belongs to automobile firmware maintenances to maintain technical field, in particular to the FOTA firmware on a kind of new-energy automobile
Remote update system and its method.
Background technique
In automobile industry, along with Intelligent Developing Trends, automobile will become the third after smart phone, PC
Big mobile terminal becomes electronic product from mechanical product evolution step by step；In addition, car networking technology is quickly grown, automobile software
System is continuously increased, and the unstability of software is inevitable, therefore, the demand to FOTA firmware upgrade also meet the tendency of and
It is raw.Each system of automobile, from windscreen wiper to navigation, from active safety to advanced driving assistance system (ADAS), none is not borrowed
Various accurate reliable electronic systems are helped to be achieved.Data are shown according to statistics, and 50% or more Defective vehicle recall is currently on the market
As caused by software defect, consumer may have to automobile be opened back the shop 4S, Defective vehicle recall because of the mistake of line code
Number therefore greatly increase.But if car owner can voluntarily upgrade by FOTA solution and repair software fault, just not
It needs the shop 4S or returns factory, this also can be effectively reduced the development risk of main engine plants and recalls cost.Meanwhile disappearing for terminal
For the person of expense, FOTA scheme can guarantee that automotive system timely updates, and import the new function of vehicle, such as automatic Pilot software
Upgrading can help consumer gradually to activate the Function for Automatic Pilot of vehicle, can also improve the limitation of automatic navigation of vehicle function
The various functions such as speed, unlock automated lane mapping function, deviation, thus continue the optimization of power-assisted man-machine interface (HMI),
Improve the experience that human-computer interaction requires.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide the FOTA firmware remote update systems on a kind of new-energy automobile, thus on overcoming
State defect in the prior art.
To achieve the above object, the present invention provides a kind of this method be vehicle ECU is realized based on T-BOX it is end-to-end
Upgrading means, T-BOX need to include following functions module:
(1) FOTA Management System Data/instruction module is received；
(2) upgrade file processing module；
(3) with VCU, BMS, ICU controller communication module；
(4) ECU upgraded module；
(5) updating result reporting modules support offline upgrade package to make, and support the updating and management of instrument and cell phone application.
Preferably, in above-mentioned technical proposal, FOTA system mainly has following logic unit:
Upgrade package (pkg) production unit: the ECU software program that need to upgrade is made work by hardware softdog and platform upgrade package
Tool, synthesis encryption upgrade package are stored in platform；
FOTA management system: providing complete updating operation process for user, allows user to be convenient to use platform visual
Administration interface carries out operation acknowledgement and process monitoring to ECU remote upgrade, while including that upgrading task management, upgrading log are looked into
The functions such as inquiry；
Vehicle end: the car-mounted terminal T-BOX for supporting remotely to write with a brush dipped in Chinese ink is carried, can be led to updating and management platform and onboard system
Letter obtains vehicle upgrade information, obtains vehicle upgrade package and carries out safety check, guarantees safety, the integrality of upgrade file；
Car owner's cell phone application: being confirmed whether to carry out updating operation, carries out effective interaction and information exchange with car owner.
FOTA firmware remote upgrade method on a kind of new-energy automobile, it is characterised in that: carry out in accordance with the following steps:
S1 upgrading prepares: is needed before upgrading in a management system according to upgrading process to be that operator distributes reasonable operating right；
S2 upgrading task creation and upload: task creation include upgrade file upload, upgrading task creation, vehicle batch setting,
Version number's automatic comparison；
S3 task execution:, which issuing key file from car networking platform first, and upgrades APMB package carries out file to T-BOX, T-BOX
It decrypts and decrypted result is fed back into platform, write with a brush dipped in Chinese ink task creation interface in platform, user manually starts upgrading task, issues liter
Grade request instruction AFN=0X05, FN=F32, terminal broadcast upgrade request by CAN bus, and synchronized push is scalable to be notified to hand
Machine APP, and describe to upgrade required condition, agrees to upgrading by user feedback and vehicle is kept to be in scalable state to put down to FOTA
Platform, platform, which issues upgrading, to be allowed to instruct AFN=0X05, and FN=F40, T-BOX issue upgrade command to VCU, and ring is write with a brush dipped in Chinese ink in VCU judgement
Border confirms that vehicle speed to be brushed is that 0& gear feeds back DID mark (0A06) when N grades of & accelerator open degrees are 0 to T-BOX, T-BOX
Notification platform and cell phone application start to upgrade, synchronous to notify onboard instruments to start to upgrade by CAN bus, and car owner is reminded to keep vehicle
In state can be write with a brush dipped in Chinese ink；
S4 completes work identified above: upgrading task formally starts, and T-BOX closes telecommunication, and it is concurrent to carry out S19 document analysis
It gives VCU and carries out software upgrading, update and complete to issue VCU instruction of restarting, VCU feeds back T-BOX updating result, T-BOX after restarting
Xiang Pingtai, cell phone application and instrument send upgrading completion notice after restoring communication, prompt car owner to exit upgrade mode, delete simultaneously
Upgrade file.
It preferably,, will be on encrypted upgrade file by input independent operation password in S2 in above-mentioned technical proposal
Car networking platform is reached, for the correctness and safety for guaranteeing file, the operation code for needing authentic administrator to be arranged；System will record
It task creation people, creation time and writes with a brush dipped in Chinese ink authorization and signs file, in the addition page of pop-up, the vehicle that selection needs to upgrade is whole
End, searches the upgrade file and key file of upload, typing operation password.
Preferably, in above-mentioned technical proposal, in S3, required condition specifically: speed is 0 or gear is at N grades or oily
Door aperture is 0.
Preferably, in above-mentioned technical proposal, in S2, to selection upgrading vehicle current version number and version number's progress is write with a brush dipped in Chinese ink
It compares in real time, is not inconsistent form a version and forbids upgrading, avoid accidentally brushing.
Preferably, in above-mentioned technical proposal, instrument and cell phone application, can Real-time Feedback upgrading feelings in ECU escalation process
Condition allows car owner to understand current upgrade status.
It preferably, need to be to four kinds of upgrade status of driver feedback: in a. remote upgrade, please don't break in above-mentioned technical proposal
Electricity: instrument is long aobvious in escalation process；B. remote upgrade is completed: being received instrument after terminal sends upgrading completion instruction and is shown 2s；
C. upgrading failure, has initialized: the rollback for receiving terminal transmission completes instrument after instructing and shows 2s；D. upgrading failure: end is received
After the upgrading failure and rollback that end is sent unsuccessfully are ordered, the long bright display of instrument is until state change.
Preferably, in above-mentioned technical proposal, in step S3, FOTA system and T-BOX interface processing logic are as follows: when vehicle meets
Condition can be write with a brush dipped in Chinese ink, TBOX, which is received, starts upgrade command AFN=0X05, after FN=F40:
S3.1 terminal meeting active reporting starts instruction AFN=0X22, the FN=F4 of upgrading, executes S3.2 step；
S3.2 closes remote control service, resets various UDS and writes with a brush dipped in Chinese ink correlated condition base, executes S3.3 step；
S3.3 judges whether pkg is the second stage of pkg, if execution S3.4, otherwise executes S3.5 according to flag bit in upgrade package
Step；
S3.4 write with a brush dipped in Chinese ink preceding edition comparison, and T-BOX sends the components for reading ECU, hardware version, software version, by its with
The original version write with a brush dipped in Chinese ink in pkg packet is compared, and if than executing S3.5 if more consistent, otherwise executes S3.11；
S3.5 hangs up other inter-related tasks, retains UDS and writes with a brush dipped in Chinese ink task, the s19 file in pkg packet is converted into bin file, and
The canid that part is write with a brush dipped in Chinese ink in the address information and pkg packet that file to be wiped is obtained, the relevant informations such as baud rate are subsequent write with a brush dipped in Chinese ink
It prepares, executes S3.6；
S3.6 writes with a brush dipped in Chinese ink specification according to the boot of BJEV, carries out writing with a brush dipped in Chinese ink for ECU, when 11 services that go to (are write with a brush dipped in Chinese ink to finish and reset ECU)
Afterwards, 5s is waited, S3.7 step is executed；
S3.7 write with a brush dipped in Chinese ink after edition comparison, TBOX send read ECU components, hardware version, software version, by its with
The target version write with a brush dipped in Chinese ink in pkg packet is compared, and executes S3.8 if consistent, is otherwise executed S3.12 and is normally write with a brush dipped in Chinese ink or upgrade
Rollback is write with a brush dipped in Chinese ink after failure；
S3.8 judges that whether there are also ECU needs to be write with a brush dipped in Chinese ink in pkg packet, if jumping to S3.6 step, otherwise executes S3.9；
Instruction is completed in the upgrading of S3.9T-BOX timing active reporting, waits platform response, after platform response, is stopped upgrading and is completed
Pkg is reported and actively deletes, the associated documents such as key execute S3.10；
S3.10 upgrading terminates；
S3.11T-BOX active reporting upgrading failure error code, resets ECU and writes with a brush dipped in Chinese ink correlated condition base, execute S3.10 step；
S3.12 carries out early version rollback and writes with a brush dipped in Chinese ink, and jumps to S3.6.
Preferably, in above-mentioned technical proposal, target version is rollback original version.
Compared with prior art, the invention has the following beneficial effects:
The present invention provides the FOTA firmware remote upgrade technical solutions on a kind of new-energy automobile, establish the vehicle of complete set
FOTA system and operation flow, reduce complexity and the period of entire vehicle design, reduce human cost and when maintenance is delivered
Between, alleviate security threat, promotes brand image.
Detailed description of the invention:
Fig. 1 is that long-range ECU upgrades architecture diagram.
Fig. 2 is ECU remote upgrade platform operation interface.
Fig. 3 is car owner's cell phone application upgrading confirmation interface.
Fig. 4 is vehicle VCU remote upgrade process case.
Specific embodiment:
Specific embodiments of the present invention will be described in detail below, it is to be understood that protection scope of the present invention not by
The limitation of specific embodiment.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other
Element or other component parts.
A kind of this method is the upgrading means end to end realized based on T-BOX to vehicle ECU, and T-BOX need to include following
Functional module:
(1) FOTA Management System Data/instruction module is received；
FOTA system mainly has following logic unit:
Upgrade package (pkg) production unit: the ECU software program that need to upgrade is made work by hardware softdog and platform upgrade package
Tool, synthesis encryption upgrade package are stored in platform；
FOTA management system: providing complete updating operation process for user, allows user to be convenient to use platform visual
Administration interface carries out operation acknowledgement and process monitoring to ECU remote upgrade, while including that upgrading task management, upgrading log are looked into
The functions such as inquiry；
Vehicle end: the car-mounted terminal T-BOX for supporting remotely to write with a brush dipped in Chinese ink is carried, can be led to updating and management platform and onboard system
Letter obtains vehicle upgrade information, obtains vehicle upgrade package and carries out safety check, guarantees safety, the integrality of upgrade file；
Car owner's cell phone application: being confirmed whether to carry out updating operation, carries out effective interaction and information exchange with car owner.
(2) upgrade file processing module；
(3) with VCU, BMS, ICU controller communication module；
(4) ECU upgraded module；
(5) updating result reporting modules support offline upgrade package to make, and support the updating and management of instrument and cell phone application.
A kind of FOTA firmware remote upgrade method on new-energy automobile carries out in accordance with the following steps:
S1 upgrading prepares: is needed before upgrading in a management system according to upgrading process to be that operator distributes reasonable operating right；
S2 upgrading task creation and upload: task creation include upgrade file upload, upgrading task creation, vehicle batch setting,
Version number's automatic comparison；Encrypted upgrade file is uploaded to car networking platform by input independent operation password, to guarantee
The correctness and safety of file, the operation code for needing authentic administrator to be arranged；System will record task creation people, creation time with
And write with a brush dipped in Chinese ink authorization and sign file, in the addition page of pop-up, selection needs the vehicle termination upgraded, searches the upgrade file of upload
And key file, typing operation password.Selection upgrading vehicle current version number is compared in real time with version number to be write with a brush dipped in Chinese ink, no
Meet version to forbid upgrading, avoids accidentally brushing.
S3 task execution: issuing key file from car networking platform first and upgrades APMB package carries out to T-BOX, T-BOX
Decrypted result is simultaneously fed back to platform by file decryption, writes with a brush dipped in Chinese ink task creation interface in platform, and user manually starts upgrading task, under
It sends out upgrade request and instructs AFN=0X05, FN=F32, terminal broadcasts upgrade request, the scalable notice of synchronized push by CAN bus
It to cell phone application, and describes to upgrade required condition, upgrading is agreed to by user feedback and vehicle is kept to be in scalable state extremely
FOTA platform, platform, which issues upgrading, to be allowed to instruct AFN=0X05, and FN=F40, T-BOX issue upgrade command to VCU, VCU judgement brush
Environment is write, confirms that vehicle speed to be brushed is that 0& gear feeds back DID mark (0A06) when N grades of & accelerator open degrees are 0 to T-BOX, T-
BOX notification platform and cell phone application start to upgrade, synchronous to notify onboard instruments to start to upgrade by CAN bus, and car owner is reminded to keep
Vehicle, which is in, can write with a brush dipped in Chinese ink state；Required condition specifically: speed is 0 or gear in N grades or accelerator open degree is 0.
In step S3, FOTA system and T-BOX interface processing logic are as follows: when vehicle satisfaction can write with a brush dipped in Chinese ink condition, TBOX is connect
It receives and starts upgrade command AFN=0X05, after FN=F40:
S3.1 terminal meeting active reporting starts instruction AFN=0X22, the FN=F4 of upgrading, executes S3.2 step；
S3.2 closes remote control service, resets various UDS and writes with a brush dipped in Chinese ink correlated condition base, executes S3.3 step；
S3.3 judges whether pkg is the second stage of pkg, if execution S3.4, otherwise executes S3.5 according to flag bit in upgrade package
Step；
S3.4 write with a brush dipped in Chinese ink preceding edition comparison, and T-BOX sends the components for reading ECU, hardware version, software version, by its with
The original version write with a brush dipped in Chinese ink in pkg packet is compared, and if than executing S3.5 if more consistent, otherwise executes S3.11；
S3.5 hangs up other inter-related tasks, retains UDS and writes with a brush dipped in Chinese ink task, the s19 file in pkg packet is converted into bin file, and
The canid that part is write with a brush dipped in Chinese ink in the address information and pkg packet that file to be wiped is obtained, the relevant informations such as baud rate are subsequent write with a brush dipped in Chinese ink
It prepares, executes S3.6；
S3.6 writes with a brush dipped in Chinese ink specification according to the boot of BJEV, carries out writing with a brush dipped in Chinese ink for ECU, when 11 services that go to (are write with a brush dipped in Chinese ink to finish and reset ECU)
Afterwards, 5s is waited, S3.7 step is executed；
S3.7 write with a brush dipped in Chinese ink after edition comparison, TBOX send read ECU components, hardware version, software version, by its with
The target version (rollback original version) write with a brush dipped in Chinese ink in pkg packet is compared, and is executed S3.8 if consistent, is otherwise executed S3.12
Rollback is write with a brush dipped in Chinese ink after normally writing with a brush dipped in Chinese ink or upgrading failure；
S3.8 judges that whether there are also ECU needs to be write with a brush dipped in Chinese ink in pkg packet, if jumping to S3.6 step, otherwise executes S3.9；
Instruction is completed in the upgrading of S3.9T-BOX timing active reporting, waits platform response, after platform response, is stopped upgrading and is completed
Pkg is reported and actively deletes, the associated documents such as key execute S3.10；
S3.10 upgrading terminates；
S3.11T-BOX active reporting upgrading failure error code, resets ECU and writes with a brush dipped in Chinese ink correlated condition base, execute S3.10 step；
S3.12 carries out early version rollback and writes with a brush dipped in Chinese ink, and jumps to S3.6.
S4 completes work identified above: upgrading task formally starts, and T-BOX closes telecommunication, carries out S19 document analysis
And be sent to VCU and carry out software upgrading, it updates and completes to issue VCU instruction of restarting, VCU feeds back T-BOX updating result, T- after restarting
Xiang Pingtai, cell phone application and instrument send upgrading completion notice after BOX restores communication, prompt car owner to exit upgrade mode, delete simultaneously
Except upgrade file.In ECU escalation process, energy Real-time Feedback upgrade case allows car owner to understand current upgrading for instrument and cell phone application
State.Need to be to four kinds of upgrade status of driver feedback: in a. remote upgrade, please don't power off: instrument be long aobvious in escalation process；
B. remote upgrade is completed: being received instrument after terminal sends upgrading completion instruction and is shown 2s；C. upgrading failure, has initialized: having received
Instrument shows 2s after instruction is completed in the rollback that terminal is sent；D. upgrading failure: the upgrading failure and rollback for receiving terminal transmission are lost
After losing order, the long bright display of instrument is until state change.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These are retouched
It states and is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out very much
Change and changes.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and in fact
Border application, so that those skilled in the art can be realized and utilize a variety of different exemplary embodiment party of the invention
Case and various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (10)
1. the FOTA firmware remote update system on a kind of new-energy automobile, it is characterised in that: the system is based on T-BOX to vehicle
The upgrading means end to end that ECU is realized, T-BOX need to include following functions module:
(1) FOTA Management System Data/instruction module is received；
(2) upgrade file processing module；
(3) with VCU, BMS, ICU controller communication module；
(4) ECU upgraded module；
(5) updating result reporting modules support offline upgrade package to make, and support the updating and management of instrument and cell phone application.
2. the FOTA firmware remote update system on new-energy automobile as described in claim 1, it is characterised in that: FOTA system
System mainly has following logic unit:
Upgrade package (pkg) production unit: the ECU software program that need to upgrade is made work by hardware softdog and platform upgrade package
Tool, synthesis encryption upgrade package are stored in platform；
FOTA management system: providing complete updating operation process for user, allows user to be convenient to use platform visual
Administration interface carries out operation acknowledgement and process monitoring to ECU remote upgrade, while including that upgrading task management, upgrading log are looked into
The functions such as inquiry；
Vehicle end: the car-mounted terminal T-BOX for supporting remotely to write with a brush dipped in Chinese ink is carried, can be led to updating and management platform and onboard system
Letter obtains vehicle upgrade information, obtains vehicle upgrade package and carries out safety check, guarantees safety, the integrality of upgrade file；
Car owner's cell phone application: being confirmed whether to carry out updating operation, carries out effective interaction and information exchange with car owner.
3. the FOTA firmware remote upgrade method on a kind of new-energy automobile, it is characterised in that: carry out in accordance with the following steps:
S1 upgrading prepares: is needed before upgrading in a management system according to upgrading process to be that operator distributes reasonable operating right；
S2 upgrading task creation and upload: task creation include upgrade file upload, upgrading task creation, vehicle batch setting,
Version number's automatic comparison；
S3 task execution:, which issuing key file from car networking platform first, and upgrades APMB package carries out file to T-BOX, T-BOX
It decrypts and decrypted result is fed back into platform, write with a brush dipped in Chinese ink task creation interface in platform, user manually starts upgrading task, issues liter
Grade request instruction AFN=0X05, FN=F32, terminal broadcast upgrade request by CAN bus, and synchronized push is scalable to be notified to hand
Machine APP, and describe to upgrade required condition, agrees to upgrading by user feedback and vehicle is kept to be in scalable state to put down to FOTA
Platform, platform, which issues upgrading, to be allowed to instruct AFN=0X05, and FN=F40, T-BOX issue upgrade command to VCU, and ring is write with a brush dipped in Chinese ink in VCU judgement
Border confirms that vehicle speed to be brushed is that 0& gear feeds back DID mark (0A06) when N grades of & accelerator open degrees are 0 to T-BOX, T-BOX
Notification platform and cell phone application start to upgrade, synchronous to notify onboard instruments to start to upgrade by CAN bus, and car owner is reminded to keep vehicle
In state can be write with a brush dipped in Chinese ink；
S4 completes work identified above: upgrading task formally starts, and T-BOX closes telecommunication, and it is concurrent to carry out S19 document analysis
It gives VCU and carries out software upgrading, update and complete to issue VCU instruction of restarting, VCU feeds back T-BOX updating result, T-BOX after restarting
Xiang Pingtai, cell phone application and instrument send upgrading completion notice after restoring communication, prompt car owner to exit upgrade mode, delete simultaneously
Upgrade file.
4. the FOTA firmware remote upgrade method on new-energy automobile as claimed in claim 3, it is characterised in that: in S2, lead to
It crosses input independent operation password and encrypted upgrade file is uploaded to car networking platform, for the correctness and safety for guaranteeing file
Property, need the operation code of authentic administrator setting；System, which will record task creation people, creation time and write with a brush dipped in Chinese ink authorization, signs text
Part, in the addition page of pop-up, selection needs the vehicle termination upgraded, searches the upgrade file and key file of upload, typing
Operation password.
5. the FOTA firmware remote upgrade method on new-energy automobile as claimed in claim 3, it is characterised in that: in S3, institute
Need condition specifically: speed is 0 or gear in N grades or accelerator open degree is 0.
6. the FOTA firmware remote upgrade method on new-energy automobile as claimed in claim 3, it is characterised in that: right in S2
Selection upgrading vehicle current version number is compared in real time with version number to be write with a brush dipped in Chinese ink, and is not inconsistent form a version and is forbidden upgrading, avoids accidentally brushing.
7. the FOTA firmware remote upgrade method on new-energy automobile as claimed in claim 3, it is characterised in that: instrument and hand
For machine APP in ECU escalation process, energy Real-time Feedback upgrade case allows car owner to understand current upgrade status.
8. the FOTA firmware remote upgrade method on new-energy automobile as claimed in claim 7, it is characterised in that: need to be to driving
Member's four kinds of upgrade status of feedback: in a. remote upgrade, please don't power off: instrument is long aobvious in escalation process；B. remote upgrade is complete
At: it receives instrument after terminal sends upgrading completion instruction and shows 2s；C. upgrading failure, has initialized: receiving returning for terminal transmission
Instrument shows 2s after instruction is completed in rolling；D. after upgrading failure: receiving the upgrading failure of terminal transmission and rollback unsuccessfully orders, instrument
Long bright display is until state change.
9. the FOTA firmware remote upgrade method on new-energy automobile as claimed in claim 3, it is characterised in that: step S3
In, FOTA system and T-BOX interface processing logic are as follows: when vehicle satisfaction can write with a brush dipped in Chinese ink condition, TBOX, which receives to start to upgrade, to be referred to
Enable AFN=0X05, after FN=F40:
S3.1 terminal meeting active reporting starts instruction AFN=0X22, the FN=F4 of upgrading, executes S3.2 step；
S3.2 closes remote control service, resets various UDS and writes with a brush dipped in Chinese ink correlated condition base, executes S3.3 step；
S3.3 judges whether pkg is the second stage of pkg, if execution S3.4, otherwise executes S3.5 according to flag bit in upgrade package
Step；
S3.4 write with a brush dipped in Chinese ink preceding edition comparison, and T-BOX sends the components for reading ECU, hardware version, software version, by its with
The original version write with a brush dipped in Chinese ink in pkg packet is compared, and if than executing S3.5 if more consistent, otherwise executes S3.11；
S3.5 hangs up other inter-related tasks, retains UDS and writes with a brush dipped in Chinese ink task, the s19 file in pkg packet is converted into bin file, and
The canid that part is write with a brush dipped in Chinese ink in the address information and pkg packet that file to be wiped is obtained, the relevant informations such as baud rate are subsequent write with a brush dipped in Chinese ink
It prepares, executes S3.6；
S3.6 writes with a brush dipped in Chinese ink specification according to the boot of BJEV, carries out writing with a brush dipped in Chinese ink for ECU, when 11 services that go to (are write with a brush dipped in Chinese ink to finish and reset ECU)
Afterwards, 5s is waited, S3.7 step is executed；
S3.7 write with a brush dipped in Chinese ink after edition comparison, TBOX send read ECU components, hardware version, software version, by its with
The target version write with a brush dipped in Chinese ink in pkg packet is compared, and executes S3.8 if consistent, is otherwise executed S3.12 and is normally write with a brush dipped in Chinese ink or upgrade
Rollback is write with a brush dipped in Chinese ink after failure；
S3.8 judges that whether there are also ECU needs to be write with a brush dipped in Chinese ink in pkg packet, if jumping to S3.6 step, otherwise executes S3.9；
Instruction is completed in the upgrading of S3.9T-BOX timing active reporting, waits platform response, after platform response, is stopped upgrading and is completed
Pkg is reported and actively deletes, the associated documents such as key execute S3.10；
S3.10 upgrading terminates；
S3.11T-BOX active reporting upgrading failure error code, resets ECU and writes with a brush dipped in Chinese ink correlated condition base, execute S3.10 step；
S3.12 carries out early version rollback and writes with a brush dipped in Chinese ink, and jumps to S3.6.
10. the FOTA firmware remote upgrade method on new-energy automobile as claimed in claim 9, it is characterised in that: target version
This is rollback original version.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648734.3A CN110489143B (en) | 2019-07-18 | 2019-07-18 | FOTA firmware remote upgrading system and method on new energy automobile |
| PCT/CN2020/086295 WO2021008184A1 (en) | 2019-07-18 | 2020-04-23 | Remote upgrading system and upgrading method for fota firmware on new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910648734.3A CN110489143B (en) | 2019-07-18 | 2019-07-18 | FOTA firmware remote upgrading system and method on new energy automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110489143A true CN110489143A (en) | 2019-11-22 |
| CN110489143B CN110489143B (en) | 2023-10-13 |
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| CN201910648734.3A Active CN110489143B (en) | 2019-07-18 | 2019-07-18 | FOTA firmware remote upgrading system and method on new energy automobile |
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| CN110489143B (en) | 2023-10-13 |
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