CN110489143B - FOTA firmware remote upgrading system and method on new energy automobile - Google Patents
FOTA firmware remote upgrading system and method on new energy automobile Download PDFInfo
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Abstract
The invention discloses a technical scheme for remotely upgrading FOTA (Firmware Over-the-Air) Firmware on a new energy automobile, which is used for remotely upgrading a plurality of electronic units (ECU) of the new energy automobile based on an intelligent terminal (T-BOX) at present and comprises a whole automobile controller (VCU), a Battery Management System (BMS), a motor controller (IPU) and an automobile Instrument (ICU). Meanwhile, in the uploading process of the upgrade package, the method not only has privacy guarantee of a hardware dongle, but also comprises the production and local storage of the offline upgrade package, and the safety and stability of the whole vehicle system in the upgrading process are greatly ensured. The vehicle enterprise can realize large-scale upgrading and repairing of the software faults of the vehicle-mounted equipment by the technology, and development risks and recall cost are effectively reduced.
Description
Technical Field
The invention belongs to the technical field of maintenance of automobile firmware, and particularly relates to a FOTA firmware remote upgrading system and method on a new energy automobile.
Background
In the automobile industry, along with the development trend of intellectualization, an automobile becomes a third large mobile terminal following a smart phone and a personal computer, and gradually evolves from a mechanical product to an electronic product; in addition, the development of internet of vehicles is rapid, the automobile software system is continuously increased, and the instability of the software is unavoidable, so that the demand for the firmware upgrade of FOTA is also growing. The various systems of the automobile, from wiper to navigation, from active safety to Advanced Driving Assistance Systems (ADAS), are not all realized by means of various precise and reliable electronic systems. Statistics show that more than 50% of car recalls on the market are caused by software defects, and consumers may have to return cars to 4S stores due to errors in a row of codes, thus greatly increasing the number of car recalls. However, if the owner can upgrade and repair the software fault by himself through the FOTA solution, the owner does not need to go to a 4S shop or return to the factory, and the development risk and recall cost of the host factory can be effectively reduced. Meanwhile, for terminal consumers, the FOTA scheme can ensure that an automobile system is updated in time, new functions of a vehicle are imported, for example, the updating of automatic driving software can help the consumers to activate the automatic driving functions of the vehicle step by step, and the limiting speed of the automatic cruising function of the vehicle, the automatic lane changing function, lane departure and other functions can be improved, so that the optimization of a power-assisted human-machine interface (HMI) is continued, and the experience of human-machine interaction requirements is improved.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The invention aims to provide a FOTA firmware remote upgrading system on a new energy automobile, so that the defects in the prior art are overcome.
In order to achieve the above purpose, the invention provides an end-to-end upgrading method for a vehicle ECU based on a T-BOX, wherein the T-BOX comprises the following functional modules:
(1) Receiving FOTA management system data/instruction modules;
(2) An upgrade file processing module;
(3) A communication module with a VCU, BMS, ICU controller;
(4) An ECU upgrading module;
(5) And the upgrade result report module supports offline upgrade package manufacture and upgrade management of the instrument and the mobile phone APP.
Preferably, in the above technical solution, the FOTA system mainly has the following logic units:
upgrade package (pkg) production unit: the ECU software program to be upgraded is synthesized and the encrypted upgrade package is stored in a platform through a hardware dongle and a platform upgrade package manufacturing tool;
FOTA management system: providing a complete upgrade operation flow for a user, allowing the user to conveniently use a platform visual management interface to perform operation confirmation and process monitoring on remote upgrade of the ECU, and simultaneously comprising functions of upgrade task management, upgrade log inquiry and the like;
vehicle end: the vehicle-mounted terminal T-BOX supporting remote refreshing is carried, and can be communicated with the upgrade management platform and the vehicle-mounted system to acquire vehicle upgrade information, acquire a vehicle upgrade package and carry out safety verification, so that the safety and the integrity of an upgrade file are ensured;
owner cell-phone APP: and confirming whether to perform upgrading operation, and performing effective interaction and information exchange with the vehicle owner.
A method for remotely upgrading FOTA firmware on a new energy automobile is characterized in that: the method comprises the following steps of:
s1, upgrade preparation: before upgrading in the management system, reasonable operation authority is allocated to operators according to an upgrading flow;
s2, creating and uploading an upgrade task: the task creation comprises upgrade file uploading, upgrade task creation, vehicle batch setting and version number automatic comparison;
s3, task execution: firstly, a key file and an upgrade package file are issued from a vehicle networking platform to a T-BOX, the T-BOX carries out file decryption and feeds back decryption results to the platform, a user manually starts an upgrade task at a platform flashing task creation interface, an upgrade request command AFN=0X05 and FN=F32 are issued, the terminal broadcasts an upgrade request through a CAN bus, an upgrade notification is synchronously pushed to a mobile phone APP, the required condition of the upgrade is described, the user feeds back and agrees to upgrade and keeps the vehicle in an upgradeable state to the FOTA platform, the platform issues an upgrade permission command AFN=0X05 and FN=F40, the T-BOX issues an upgrade command to a VCU, the VCU judges a flashing environment, a DID mark (0A 06) to the T-BOX is fed back when the vehicle speed to be refreshed is 0& gear and the accelerator opening is 0, the T-BOX notifies the platform and the mobile phone APP to start upgrade, and synchronously notifies a vehicle-mounted instrument to start upgrade through the CAN bus, and the vehicle owner is reminded to keep the vehicle in the upgradeable state;
and S4, completing the confirmation work, namely formally starting an upgrading task, closing remote communication by using the T-BOX, analyzing the file in S19, sending the file to the VCU for software updating, completing the updating, sending a VCU restarting instruction, feeding back a T-BOX upgrading result after the VCU is restarted, sending an upgrading completion notice to the platform, the mobile phone APP and the instrument after the T-BOX resumes communication, prompting the owner to exit from an upgrading mode, and deleting the upgrading file.
Preferably, in the above technical solution, in S2, the encrypted upgrade file is uploaded to the internet of vehicles platform by inputting an independent operation password, so as to ensure the correctness and safety of the file, and the operation code set by the administrator needs to be verified; the system records the task creator, the creation time and the writing authorized signature file, selects the vehicle terminal to be upgraded on the popped added page, searches the uploaded upgrade file and key file, and inputs the operation password.
Preferably, in the above technical solution, in S3, the required conditions are specifically: the vehicle speed is 0 or the gear is in N gear or the accelerator opening is 0.
Preferably, in the above technical solution, in S2, the current version number of the selected upgrade vehicle is compared with the version number to be updated in real time, and the version is not in compliance with the version prohibition upgrade, so as to avoid erroneous updating.
Preferably, in the technical scheme, the meter and the mobile phone APP can feed back the upgrading condition in real time in the ECU upgrading process, so that the vehicle owner can know the current upgrading state.
Preferably, in the above technical solution, four upgrade states need to be fed back to the driver: a. in remote upgrade, do not power off: the instrument is displayed for a long time in the upgrading process; b. remote upgrade completion: after receiving the instruction of finishing the upgrade sent by the terminal, displaying for 2s by the instrument; c. upgrade failed, initialized: after receiving a rollback completion instruction sent by the terminal, displaying for 2s by the instrument; d. upgrade failure: and after receiving the upgrade failure and rollback failure command sent by the terminal, the instrument is highlighted until the state changes.
Preferably, in the above technical solution, in step S3, the FOTA system and the T-BOX interface processing logic are as follows: when the vehicle satisfies the condition of being able to be written, after the TBOX receives the start upgrade command afn=0x05, fn=f40:
the S3.1 terminal actively reports an instruction AFN=0X22 and FN=F4 for starting upgrading, and the S3.2 step is executed;
s3.2, closing the remote control service, resetting various UDS brush-writing related state bases, and executing the step S3.3;
s3.3, judging whether the pkg is the second-stage pkg according to the flag bit in the upgrade package, if so, executing S3.4, otherwise, executing S3.5;
s3.4, comparing the version before the refreshing, and transmitting and reading the parts, hardware version and software version of the ECU by the T-BOX, comparing the parts, hardware version and software version with the original version in the refreshing pkg packet, if the comparison is consistent, executing S3.5, otherwise executing S3.11;
s3.5, suspending other related tasks, reserving a UDS (universal description service) refreshing task, converting an S19 file in a pkg packet into a bin file, acquiring address information to be erased of the file and related information such as canid, baud rate and the like of a refreshed piece in the pkg packet, preparing for subsequent refreshing, and executing S3.6;
s3.6, according to the boot brushing specification of the BEV, brushing the ECU, and after 11 services (brushing finish resetting the ECU) are executed, waiting for 5S, and executing the step S3.7;
s3.7, comparing the updated version, wherein the TBOX sends and reads the parts, hardware version and software version of the ECU, and compares the parts, hardware version and software version with the target version in the updated pkg packet, if the parts, hardware version and software version are consistent with the target version in the updated pkg packet, S3.8 is executed, otherwise S3.12 is executed, and rolling is returned after normal updating or updating fails;
s3.8, judging whether the ECU needs to be refreshed in the pkg packet, if yes, jumping to the step S3.6, otherwise, executing the step S3.9;
S3.9T-BOX actively reports an upgrade completion instruction at regular time, waits for platform response, stops upgrade completion reporting and actively deletes related files such as pkg, key and the like after the platform response, and executes S3.10;
s3.10, finishing upgrading;
S3.11T-BOX actively reports an upgrade failure fault code, resets an ECU (electronic control Unit) to write a relevant state base, and executes S3.10 steps;
s3.12, performing old version rolling brush writing, and jumping to S3.6.
Preferably, in the above technical solution, the target version is a rollback original version.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a technical scheme for remotely upgrading FOTA firmware on a new energy automobile, which establishes a complete vehicle FOTA system and business process, reduces the complexity and period of whole automobile design, reduces labor cost and maintenance delivery time, relieves security threat and improves brand image.
Description of the drawings:
fig. 1 is a remote ECU upgrade architecture diagram.
Fig. 2 is an ECU remote upgrade platform operation interface.
Fig. 3 is an APP upgrade confirmation interface for a vehicle owner handset.
Fig. 4 is a flow chart of remote upgrade of a VCU of a vehicle.
The specific embodiment is as follows:
the following detailed description of the embodiments of the invention is, however, to be understood that the invention is not limited to the embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising" or the like will be understood to include the stated element or component without excluding other elements or components.
The method is an end-to-end upgrading method based on T-BOX to a vehicle ECU, wherein the T-BOX comprises the following functional modules:
(1) Receiving FOTA management system data/instruction modules;
the FOTA system mainly comprises the following logic units:
upgrade package (pkg) production unit: the ECU software program to be upgraded is synthesized and the encrypted upgrade package is stored in a platform through a hardware dongle and a platform upgrade package manufacturing tool;
FOTA management system: providing a complete upgrade operation flow for a user, allowing the user to conveniently use a platform visual management interface to perform operation confirmation and process monitoring on remote upgrade of the ECU, and simultaneously comprising functions of upgrade task management, upgrade log inquiry and the like;
vehicle end: the vehicle-mounted terminal T-BOX supporting remote refreshing is carried, and can be communicated with the upgrade management platform and the vehicle-mounted system to acquire vehicle upgrade information, acquire a vehicle upgrade package and carry out safety verification, so that the safety and the integrity of an upgrade file are ensured;
owner cell-phone APP: and confirming whether to perform upgrading operation, and performing effective interaction and information exchange with the vehicle owner.
(2) An upgrade file processing module;
(3) A communication module with a VCU, BMS, ICU controller;
(4) An ECU upgrading module;
(5) And the upgrade result report module supports offline upgrade package manufacture and upgrade management of the instrument and the mobile phone APP.
A method for remotely upgrading FOTA firmware on a new energy automobile comprises the following steps:
s1, upgrade preparation: before upgrading in the management system, reasonable operation authority is allocated to operators according to an upgrading flow;
s2, creating and uploading an upgrade task: the task creation comprises upgrade file uploading, upgrade task creation, vehicle batch setting and version number automatic comparison; uploading the encrypted upgrade file to the Internet of vehicles platform by inputting an independent operation password, and verifying an operation code set by an administrator to ensure the correctness and the safety of the file; the system records the task creator, the creation time and the writing authorized signature file, selects the vehicle terminal to be upgraded on the popped added page, searches the uploaded upgrade file and key file, and inputs the operation password. And comparing the current version number of the selected upgrading vehicle with the version number to be updated in real time, and avoiding error updating if the version number does not accord with the version prohibition upgrading.
S3, task execution: firstly, a key file and an upgrade package file are issued from a vehicle networking platform to a T-BOX, the T-BOX carries out file decryption and feeds back decryption results to the platform, a user manually starts an upgrade task at a platform flashing task creation interface, an upgrade request command AFN=0X05 and FN=F32 are issued, the terminal broadcasts an upgrade request through a CAN bus, an upgrade notification is synchronously pushed to a mobile phone APP, the required condition of the upgrade is described, the user feeds back and agrees to upgrade and keeps the vehicle in an upgradeable state to the FOTA platform, the platform issues an upgrade permission command AFN=0X05 and FN=F40, the T-BOX issues an upgrade command to a VCU, the VCU judges a flashing environment, a DID mark (0A 06) to the T-BOX is fed back when the vehicle speed to be refreshed is 0& gear and the accelerator opening is 0, the T-BOX notifies the platform and the mobile phone APP to start upgrade, and synchronously notifies a vehicle-mounted instrument to start upgrade through the CAN bus, and the vehicle owner is reminded to keep the vehicle in the upgradeable state; the required conditions are specifically as follows: the vehicle speed is 0 or the gear is in N gear or the accelerator opening is 0.
In step S3, the FOTA system and the T-BOX interface processing logic are as follows: when the vehicle satisfies the condition of being able to be written, after the TBOX receives the start upgrade command afn=0x05, fn=f40:
the S3.1 terminal actively reports an instruction AFN=0X22 and FN=F4 for starting upgrading, and the S3.2 step is executed;
s3.2, closing the remote control service, resetting various UDS brush-writing related state bases, and executing the step S3.3;
s3.3, judging whether the pkg is the second-stage pkg according to the flag bit in the upgrade package, if so, executing S3.4, otherwise, executing S3.5;
s3.4, comparing the version before the refreshing, and transmitting and reading the parts, hardware version and software version of the ECU by the T-BOX, comparing the parts, hardware version and software version with the original version in the refreshing pkg packet, if the comparison is consistent, executing S3.5, otherwise executing S3.11;
s3.5, suspending other related tasks, reserving a UDS (universal description service) refreshing task, converting an S19 file in a pkg packet into a bin file, acquiring address information to be erased of the file and related information such as canid, baud rate and the like of a refreshed piece in the pkg packet, preparing for subsequent refreshing, and executing S3.6;
s3.6, according to the boot brushing specification of the BEV, brushing the ECU, and after 11 services (brushing finish resetting the ECU) are executed, waiting for 5S, and executing the step S3.7;
s3.7, comparing the updated version, wherein the TBOX sends and reads the parts, hardware version and software version of the ECU, and compares the parts, hardware version and software version with a target version (original version for rollback) in the updated pkg packet, if the parts, hardware version and software version are consistent with the target version (original version for rollback) in the updated pkg packet, S3.8 is executed, otherwise S3.12 is executed, and the rollback updating is executed after normal updating or updating fails;
s3.8, judging whether the ECU needs to be refreshed in the pkg packet, if yes, jumping to the step S3.6, otherwise, executing the step S3.9;
S3.9T-BOX actively reports an upgrade completion instruction at regular time, waits for platform response, stops upgrade completion reporting and actively deletes related files such as pkg, key and the like after the platform response, and executes S3.10;
s3.10, finishing upgrading;
S3.11T-BOX actively reports an upgrade failure fault code, resets an ECU (electronic control Unit) to write a relevant state base, and executes S3.10 steps;
s3.12, performing old version rolling brush writing, and jumping to S3.6.
And S4, completing the confirmation work, namely formally starting an upgrading task, closing remote communication by using the T-BOX, analyzing the file in S19, sending the file to the VCU for software updating, completing the updating, sending a VCU restarting instruction, feeding back a T-BOX upgrading result after the VCU is restarted, sending an upgrading completion notice to the platform, the mobile phone APP and the instrument after the T-BOX resumes communication, prompting the owner to exit from an upgrading mode, and deleting the upgrading file. The instrument and the mobile phone APP can feed back the upgrade condition in real time in the ECU upgrade process, so that the vehicle owner can know the current upgrade state. Four upgrade states need to be fed back to the driver: a. in remote upgrade, do not power off: the instrument is displayed for a long time in the upgrading process; b. remote upgrade completion: after receiving the instruction of finishing the upgrade sent by the terminal, displaying for 2s by the instrument; c. upgrade failed, initialized: after receiving a rollback completion instruction sent by the terminal, displaying for 2s by the instrument; d. upgrade failure: and after receiving the upgrade failure and rollback failure command sent by the terminal, the instrument is highlighted until the state changes.
The foregoing descriptions of specific exemplary embodiments of the present invention are presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable one skilled in the art to make and utilize the invention in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (8)
1. A method for remotely upgrading FOTA firmware on a new energy automobile comprises a system for remotely upgrading the FOTA firmware on the new energy automobile, wherein the system is an end-to-end upgrading method realized on the basis of a T-BOX to an ECU of the automobile, and the T-BOX comprises the following functional modules:
(1) Receiving FOTA management system data or an instruction module;
(2) An upgrade file processing module;
(3) A communication module with a VCU, BMS, ICU controller;
(4) An ECU upgrading module;
(5) The upgrade result report module supports offline upgrade package manufacture and upgrade management of meters and mobile phone APP;
the FOTA system has the following logic units:
upgrade package pkg making unit: the ECU software program to be upgraded is synthesized and the encrypted upgrade package is stored in a platform through a hardware dongle and a platform upgrade package manufacturing tool;
FOTA management system: providing a complete upgrade operation flow for a user, allowing the user to conveniently use a platform visual management interface to perform operation confirmation and process monitoring on remote upgrade of the ECU, and simultaneously comprising upgrade task management and upgrade log query functions;
vehicle end: the vehicle-mounted terminal T-BOX supporting remote refreshing is carried, and can be communicated with the upgrade management platform and the vehicle-mounted system to acquire vehicle upgrade information, acquire a vehicle upgrade package and carry out safety verification, so that the safety and the integrity of an upgrade file are ensured;
owner cell-phone APP: confirming whether to perform upgrading operation, effectively interacting with the vehicle owner and exchanging information, and performing the following steps:
s1, upgrade preparation: before upgrading in the management system, reasonable operation authority is allocated to operators according to an upgrading flow;
s2, creating and uploading an upgrade task: the task creation comprises upgrade file uploading, upgrade task creation, vehicle batch setting and version number automatic comparison;
s3, task execution: firstly, issuing a key file and an upgrade package file from a vehicle networking platform to a T-BOX, performing file decryption by the T-BOX, feeding back a decryption result to the platform, at a platform flashing task creation interface, manually starting an upgrade task by a user, issuing an upgrade request instruction AFN=0X05, FN=F32, broadcasting an upgrade request by a terminal through a CAN bus, synchronously pushing an upgradeable notification to a mobile phone APP, describing the required condition of upgrade, feeding back the upgrade by the user and keeping a vehicle in an upgradeable state to the FOTA platform, issuing an upgrade permission instruction AFN=0X05, FN=F40, issuing an upgrade instruction to a VCU by the T-BOX, judging a flashing environment by the VCU, confirming that the vehicle speed to be refreshed is 0& gear, feeding back DID marks 0A06 to T-BOX when the N gear & accelerator opening is 0, notifying the platform and the mobile phone APP to start upgrading, synchronously notifying a vehicle-mounted instrument through the CAN bus, and reminding a vehicle owner of keeping the vehicle in the upgradeable state;
and S4, completing the confirmation work, namely formally starting an upgrading task, closing remote communication by using the T-BOX, analyzing the file in S19, sending the file to the VCU for software updating, completing the updating, sending a VCU restarting instruction, feeding back a T-BOX upgrading result after the VCU is restarted, sending an upgrading completion notice to the platform, the mobile phone APP and the instrument after the T-BOX resumes communication, prompting the owner to exit from an upgrading mode, and deleting the upgrading file.
2. The FOTA firmware remote upgrade method for a new energy automobile of claim 1, wherein: s2, uploading the encrypted upgrade file to the Internet of vehicles platform through inputting an independent operation password, and verifying an operation code set by an administrator to ensure the correctness and the safety of the file; the system records the task creator, the creation time and the writing authorized signature file, selects the vehicle terminal to be upgraded on the popped added page, searches the uploaded upgrade file and key file, and inputs the operation password.
3. The FOTA firmware remote upgrade method for a new energy automobile of claim 1, wherein: in S3, the required conditions are specifically as follows: the vehicle speed is 0 or the gear is in N gear or the accelerator opening is 0.
4. The FOTA firmware remote upgrade method for a new energy automobile of claim 1, wherein: and S2, comparing the current version number of the selected upgrading vehicle with the version number to be updated in real time, and avoiding error updating if the version number does not accord with the version prohibition upgrading.
5. The FOTA firmware remote upgrade method for a new energy automobile of claim 1, wherein: the instrument and the mobile phone APP can feed back the upgrade condition in real time in the ECU upgrade process, so that the vehicle owner can know the current upgrade state.
6. The FOTA firmware remote upgrade method for a new energy automobile of claim 5, wherein: four upgrade states need to be fed back to the driver: a. in remote upgrade, do not power off: the instrument is displayed for a long time in the upgrading process; b. remote upgrade completion: after receiving the instruction of finishing the upgrade sent by the terminal, displaying for 2s by the instrument; c. upgrade failed, initialized: after receiving a rollback completion instruction sent by the terminal, displaying for 2s by the instrument; d. upgrade failure: and after receiving the upgrade failure and rollback failure command sent by the terminal, the instrument is highlighted until the state changes.
7. The FOTA firmware remote upgrade method for a new energy automobile of claim 1, wherein: in step S3, the FOTA system and the T-BOX interface processing logic are as follows: when the vehicle satisfies the condition of being able to be written, after the TBOX receives the start upgrade command afn=0x05, fn=f40:
the S3.1 terminal actively reports an instruction AFN=0X22 and FN=F4 for starting upgrading, and the S3.2 step is executed;
s3.2, closing the remote control service, resetting various UDS brush-writing related state bases, and executing the step S3.3;
s3.3, judging whether the pkg is the second-stage pkg according to the flag bit in the upgrade package, if so, executing S3.4, otherwise, executing S3.5;
s3.4, comparing the version before the refreshing, and transmitting and reading the parts, hardware version and software version of the ECU by the T-BOX, comparing the parts, hardware version and software version with the original version in the refreshing pkg packet, if the comparison is consistent, executing S3.5, otherwise executing S3.11;
s3.5, suspending other related tasks, reserving a UDS (universal description service) refreshing task, converting an S19 file in a pkg packet into a bin file, acquiring address information to be erased of the file and a canid of a refreshed piece in the pkg packet, preparing related information of a baud rate for subsequent refreshing, and executing S3.6;
s3.6, according to the boot brushing specification of the BEV, brushing the ECU, and after resetting the ECU after the service brushing is completed 11 times, waiting for 5S, and executing the step S3.7;
s3.7, comparing the updated version, wherein the TBOX sends and reads the parts, hardware version and software version of the ECU, and compares the parts, hardware version and software version with the target version in the updated pkg packet, if the parts, hardware version and software version are consistent with the target version in the updated pkg packet, S3.8 is executed, otherwise S3.12 is executed, and rolling is returned after normal updating or updating fails;
s3.8, judging whether the ECU needs to be refreshed in the pkg packet, if yes, jumping to the step S3.6, otherwise, executing the step S3.9;
S3.9T-BOX actively reports an upgrade completion instruction at regular time, waits for platform response, stops upgrade completion reporting and actively deletes the pkg and key related files after the platform response, and executes S3.10;
s3.10, finishing upgrading;
S3.11T-BOX actively reports an upgrade failure fault code, resets an ECU (electronic control Unit) to write a relevant state base, and executes S3.10 steps;
s3.12, performing old version rolling brush writing, and jumping to S3.6.
8. The FOTA firmware remote upgrade method for a new energy automobile of claim 7, wherein: the target version is the original version for rollback.
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| 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 |
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| CN201910648734.3A CN110489143B (en) | 2019-07-18 | 2019-07-18 | FOTA firmware remote upgrading system and method on new energy automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110489143B (en) * | 2019-07-18 | 2023-10-13 | 南京依维柯汽车有限公司 | FOTA firmware remote upgrading system and method on new energy automobile |
| CN110888414B (en) * | 2019-11-25 | 2021-03-23 | 一汽解放汽车有限公司 | Test method for upgrading vehicle controller |
| CN110995724A (en) * | 2019-12-11 | 2020-04-10 | 厦门金龙联合汽车工业有限公司 | Remote upgrading method for whole vehicle controller of new energy bus |
| CN111190633B (en) * | 2020-01-03 | 2021-09-03 | 东风汽车集团有限公司 | OTA (over the air) upgrading system and method for whole electric control unit |
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