CN115257596A - System and method for switching over-the-air (OTA) upgrading power supply modes of automobile - Google Patents
System and method for switching over-the-air (OTA) upgrading power supply modes of automobile Download PDFInfo
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- CN115257596A CN115257596A CN202210894593.5A CN202210894593A CN115257596A CN 115257596 A CN115257596 A CN 115257596A CN 202210894593 A CN202210894593 A CN 202210894593A CN 115257596 A CN115257596 A CN 115257596A
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- 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
- B60R16/03—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 supply of electrical power to vehicle subsystems or for
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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Abstract
The invention discloses a system and a method for switching over OTA (over the air) upgrading power supply modes of an automobile, belonging to the technical field of automobile electronics, wherein the switching system comprises an OTA cloud server, a TBOX (tunnel boring oxide sensor), a BCM (binary-coded modulation) controller and an ECU (electronic control unit) to be refreshed; the OTA cloud server is used for storing an OTA upgrade package and deploying an upgrade task; the vehicle-end TBOX is in communication connection with the OTA cloud server and is used for downloading the upgrade package from the OTA cloud server and sending a remote control encryption message to the vehicle body controller BCM; the vehicle body controller BCM is used for switching a power supply mode; and carrying out the flash in the power-on mode, and powering down after the flash. The system and the method realize the encryption of the remote control message and ensure the safety of the communication. And the whole vehicle power supply mode is IG ON in the flashing process, and a user can be informed of relevant information of the upgrading task in the mode.
Description
Technical Field
The invention belongs to the technical field of automotive electronics, and particularly relates to an automotive OTA (over the air) upgrading power supply mode switching system and method.
Background
In the automobile industry, with the popularization of intellectualization and electromotion, OTA upgrading is more and more common. Its high efficiency, low cost, outstanding interactive experience get more and more host computer factory's favor. Meanwhile, some troublesome problems in the OTA upgrading process are also paid attention to, wherein the more prominent problem is the problem of the power supply mode in the OTA upgrading process, the power supply mode of the vehicle comprises IG ON, and all controllers are in a power-ON state; and Recently OFF, in which the vehicle controller is in a power-down state and the HU (infotainment system) is in a bright screen state, in which the user can normally operate the screen of the HU; all controllers are in a power-OFF state under IG OFF, and a user cannot operate a HU screen; thus, the behavior of the vehicle in the power up and power down modes is not the same, and the tasks performed by the OTA are not the same. Therefore, how to reasonably execute power-on and power-off in the OTA upgrade of the automobile is a problem to be solved urgently.
Disclosure of Invention
The invention provides a system and a method for switching over a power supply mode for OTA (over the air) upgrade of an automobile, aiming at solving the problem of the power supply mode in the OTA upgrade process in the prior art.
The invention is realized by the following technical scheme:
the invention provides an OTA (over the air) upgrading power supply mode switching system for an automobile, which comprises an OTA cloud server, a TBOX (tunnel boring machine), a BCM (binary-coded decimal) controller and an ECU (electronic control unit) to be flashed;
the OTA cloud server is used for storing an OTA upgrade package and deploying an upgrade task;
the vehicle-end TBOX is in communication connection with the OTA cloud server and is used for downloading the upgrade package from the OTA cloud server and sending a remote control encryption message to the vehicle body controller BCM;
the vehicle body controller BCM is used for switching a power supply mode; and carrying out the flash in the power-on mode, and powering down after the flash.
Further, the encrypted message includes a power-on duration parameter.
On the other hand, the invention provides a method for switching over the OTA (over the air) upgrading power supply mode of an automobile, which comprises the following steps:
the OTA cloud server deploys an upgrading task;
the vehicle end TBOX sends a remote control encryption message to a vehicle body controller BCM;
the BCM judges the power-on parameters, judges whether the countdown time length is up, and controls the whole vehicle to be powered off if the countdown time length is up.
Further, the deployment of the upgrade task by the OTA cloud server further includes:
judging whether the power supply mode is IG ON at the moment, if not, waiting for next IG ON; if so, the vehicle-end TBOX downloads the upgrade package.
Further, the downloading of the upgrade package by the vehicle-end TBOX further includes:
the TBOX at the vehicle end monitors CAN signals of a bus power supply mode, and if the change of the power supply mode is captured, the CAN signals are switched to Recentry OFF, and then a user is informed of upgrading; informing a user that the OTA component starts to carry out vehicle condition check after upgrading, and waiting for the next cycle to carry out check if the check is not passed; if the check passes, the next flow is followed.
Further, the method for judging the power-on parameters by the BCM comprises the following steps:
the BCM judges the power-on parameters, if the parameters are 0, the OTA upgrading task fails, and the vehicle-end TBOX sends the task result to the OTA server;
if the power-on time parameter is not 0, the BCM controls the whole vehicle to be powered on, if the power-on fails, the OTA upgrading task fails, and the TBOX sends the task result to the OTA server; if the power up is successful, TBOX starts to flush the ECU.
Further, the determining whether the countdown duration expires specifically includes:
if the time comes, the whole vehicle is controlled to be powered off, if the time does not come, whether the remote power-off encrypted message is received or not is judged, if the remote power-off encrypted message is not received, the condition circulation judgment is continued, and if the remote power-off encrypted message is received, the BCM controls the whole vehicle to be powered off.
Further, the automobile body controller still includes after controlling whole car to cut off the electricity:
and the TBOX reports the OTA task result to the OTA server.
Compared with the prior art, the invention has the following advantages:
(1) The system and the method for switching the OTA upgrading power supply mode of the automobile realize the encryption of the remote control message and ensure the safety of the communication.
(2) And in the flashing process, the power supply mode of the whole vehicle is IG ON, and a user can be informed of relevant information of the upgrading task in the IG ON mode.
(3) If abnormal power failure occurs in the upgrading process, the BCM can automatically power off after the countdown is timed out, and the vehicle is guaranteed not to be lack of power.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a system block diagram of an OTA upgrade power supply mode switching system for a vehicle according to the present invention;
fig. 2 is a schematic flow chart of a method for switching over a power supply mode of an OTA upgrade of an automobile according to the present invention.
Detailed Description
For clearly and completely describing the technical scheme and the specific working process thereof, the specific implementation mode of the invention is as follows by combining the attached drawings of the specification:
in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Example 1
As shown in fig. 1, the switching system for the OTA upgrade power supply mode of the vehicle in this embodiment includes an OTA cloud server, a TBOX, a BCM controller, and an ECU to be flashed;
the OTA cloud server is used for storing an OTA upgrade package and deploying an upgrade task;
the vehicle-end TBOX is in communication connection with the OTA cloud server and is used for downloading the upgrade package from the OTA cloud server and sending a remote control encryption message to the vehicle body controller BCM;
the vehicle body controller BCM is used for switching a power supply mode; and performing flash in the power-on mode, and powering down after flash.
The encrypted message includes a power-on duration parameter.
In the OTA upgrading process, after the upgrading package is downloaded, the TBOX captures the power supply signal change of the BCM, the falling edge from power-up to power-down serves as the condition for popping up the installation prompt popup window, after the user clicks successfully, the TBOX controls the BCM to be in a power-on mode and a power-off mode through a remote control encryption message, the BCM is subjected to flash in the power-on mode, and the BCM is subjected to power-off after flash. In the process, if the power-on fails or the whole vehicle is powered off normally, the task is judged to fail, and the TBOX feeds back the result to the cloud server. If power-on is successful, the HU screen can pop up the relevant information who pops out in the installation and indicate this OTA task of user, after the end of writing with a brush, to HU feedback upgrade result, the whole car of BCM control is gone off power. Before the BCM is powered on, a remote control encryption message sent by the TBOX comprises the power-on time, and the BCM counts down when receiving the value and the value is not 0.
Example 2
The embodiment provides a method for switching an OTA (over the air) upgrading power supply mode of an automobile, which specifically comprises the following steps:
the OTA cloud server deploys an upgrading task;
the vehicle end TBOX sends a remote control encryption message to a vehicle body controller BCM;
the BCM judges the power-on parameters, judges whether the countdown time length is up, and controls the whole vehicle to be powered off if the countdown time length is up.
In this embodiment, the deploying the upgrade task by the OTA cloud server further includes:
judging whether the power supply mode is IG ON at the moment, if not, waiting for next IG ON; if so, the vehicle-end TBOX downloads the upgrade package.
In this embodiment, the downloading of the upgrade package by the vehicle-side TBOX further includes:
the TBOX at the vehicle end monitors CAN signals of a bus power supply mode, and if the change of the power supply mode is captured, the CAN signals are switched to Recentry OFF, and then a user is informed of upgrading; informing a user that the OTA component starts to carry out vehicle condition check after upgrading, and waiting for the next cycle to carry out check if the check is not passed; if the check passes, the next flow is followed.
In this embodiment, the method for the vehicle body controller BCM to determine the power-on parameter includes:
the BCM judges the power-on parameters, if the parameters are 0, the OTA upgrading task fails, and the vehicle-end TBOX sends the task result to the OTA server;
if the power-on time parameter is not 0, the BCM controls the whole vehicle to be powered on, if the power-on fails, the OTA upgrading task fails, and the TBOX sends the task result to the OTA server; if the power up is successful, TBOX starts to flush the ECU.
In this embodiment, the determining whether the countdown duration expires specifically includes:
if the time comes, the whole vehicle is controlled to be powered off, if the time does not come, whether the remote power-off encrypted message is received or not is judged, if the remote power-off encrypted message is not received, the condition circulation judgment is continued, and if the remote power-off encrypted message is received, the BCM controls the whole vehicle to be powered off.
In this embodiment, the vehicle body controller further includes after controlling the entire vehicle to power off:
and the TBOX reports the OTA task result to the OTA server.
Example 3
As shown in fig. 2, which is a schematic flow chart of a method for switching an upgrading power supply mode of an OTA of an automobile in this embodiment, the method specifically includes the following steps:
1) The process begins.
2) And the OTA server deploys tasks at the cloud, and after the TBOX is connected with the OTA server, the TBOX captures and diagnoses a power supply signal ON the CAN line, judges whether the power supply mode is IG ON at the moment, and waits for next IG ON if the power supply mode is not IG ON. If yes, the TBOX downloads the upgrade package;
3) If the upgrade package is downloaded completely, the TBOX monitors CAN signals of a bus power supply mode, and if the change of the power supply mode is captured, the power supply mode is switched to Recently OFF, and a user is informed of upgrading;
4) Informing a user that the OTA component starts to carry out vehicle condition check after upgrading, and waiting for the next cycle to carry out check if the check is not passed; if the check is passed, the next flow is carried out;
5) And the TBOX sends a remote control encryption message to the BCM, controls the BCM to switch a power supply mode to IG ON, and continuously sends three frames. The encrypted message contains a power-on time length parameter; BCM judges the power-on parameter, if the parameter is 0, the OTA upgrading task fails, TBOX sends the task result to the OTA server;
6) If the power-on time parameter is not 0, the BCM controls the whole vehicle to be powered on, if the power-on fails, the OTA upgrading task fails, and the TBOX sends the task result to the OTA server. If the power up is successful, TBOX starts to flush the ECU.
7) The BCM controller judges whether the countdown time length is up or not, if so, the whole vehicle is controlled to be powered off, if not, whether a remote power-off encrypted message is received or not is judged, if not, the condition is continuously judged in a circulating way, and if so, the BCM controls the whole vehicle to be powered off;
8) The BCM stops the timer and resets the timer to 0;
9) The TBOX is used as an upper computer, a flash result, namely the result of the OTA task, is judged, and the result is reported to an OTA server;
10 The flow ends.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (8)
1. An automobile OTA upgrading power supply mode switching system is characterized by comprising an OTA cloud server, a TBOX, a BCM controller and an ECU to be flashed;
the OTA cloud server is used for storing an OTA upgrade package and deploying an upgrade task;
the vehicle-end TBOX is in communication connection with the OTA cloud server and is used for downloading the upgrade package from the OTA cloud server and sending a remote control encryption message to the vehicle body controller BCM;
the vehicle body controller BCM is used for switching a power supply mode; and performing flash in the power-on mode, and powering down after flash.
2. The OTA power mode switching system of claim 1, wherein the encrypted message includes a power-on duration parameter.
3. The switching method of the OTA upgrade power supply mode switching system for the automobile according to claim 1, comprising the following steps:
the OTA cloud server deploys an upgrading task;
the vehicle end TBOX sends a remote control encryption message to a vehicle body controller BCM;
the BCM judges the power-on parameters, judges whether the countdown time length is up, and controls the whole vehicle to be powered off if the countdown time length is up.
4. The OTA power mode switching method for the upgrade of the vehicle as claimed in claim 3, wherein the OTA cloud server deploys the upgrade task and further comprises:
judging whether the power supply mode is IG ON at the moment, and if not, waiting for next IG ON; if so, the vehicle-end TBOX downloads the upgrade package.
5. The OTA power mode switching method for the vehicle according to claim 3, wherein the vehicle TBOX downloads an upgrade package, and further comprises:
the TBOX at the vehicle end monitors CAN signals of a bus power supply mode, and if the change of the power supply mode is captured, the CAN signals are switched to Recentry OFF, and then a user is informed of upgrading; informing a user that the OTA component starts to carry out vehicle condition check after upgrading, and waiting for the next cycle to carry out check if the check is not passed; if the check passes, the next flow is followed.
6. The OTA power supply mode switching method for the vehicle according to claim 3, wherein the method for the BCM to judge the power-on parameter comprises the following steps:
the BCM judges the power-on parameters, if the parameters are 0, the OTA upgrading task fails, and the vehicle-end TBOX sends the task result to the OTA server;
if the power-on time parameter is not 0, the BCM controls the whole vehicle to be powered on, if the power-on fails, the OTA upgrading task fails, and the TBOX sends the task result to the OTA server; if the power up is successful, TBOX starts to flush the ECU.
7. The OTA power supply mode switching method for the vehicle according to claim 3, wherein the determining whether the countdown duration expires specifically comprises:
if the time comes, the whole vehicle is controlled to be powered off, if the time does not come, whether the remote power-off encrypted message is received or not is judged, if the remote power-off encrypted message is not received, the condition circulation judgment is continued, and if the remote power-off encrypted message is received, the BCM controls the whole vehicle to be powered off.
8. The OTA power supply mode switching method for the vehicle according to claim 3, wherein the step of controlling the power-off of the whole vehicle by the vehicle body controller further comprises the following steps:
and the TBOX reports the OTA task result to the OTA server.
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| CN202210894593.5A CN115257596A (en) | 2022-07-28 | 2022-07-28 | System and method for switching over-the-air (OTA) upgrading power supply modes of automobile |
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| CN202210894593.5A CN115257596A (en) | 2022-07-28 | 2022-07-28 | System and method for switching over-the-air (OTA) upgrading power supply modes of automobile |
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| CN116056045A (en) * | 2023-03-31 | 2023-05-02 | 江铃汽车股份有限公司 | AB point customer parking remote upgrading method and system |
| CN116437337A (en) * | 2023-06-13 | 2023-07-14 | 江铃汽车股份有限公司 | Multi-communication type OTA upgrading system and method for vehicle-mounted bus and vehicle |
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