CN112748939A - Software update control method and device and automobile - Google Patents
Software update control method and device and automobile Download PDFInfo
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- CN112748939A CN112748939A CN201911055626.1A CN201911055626A CN112748939A CN 112748939 A CN112748939 A CN 112748939A CN 201911055626 A CN201911055626 A CN 201911055626A CN 112748939 A CN112748939 A CN 112748939A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
Abstract
The invention discloses a control method and a control device for software updating and an automobile, wherein the method is applied to the automobile and comprises the following steps: receiving a first request sent by a remote server, wherein the first request is used for requesting software update of a target component in a vehicle; confirming a component type of the target component according to the first request; the component types include: a high voltage upper electrical system component and a non-high voltage upper electrical system component; determining whether a software updating condition of the target component is met according to the component type and the residual capacity of a vehicle battery; and when the software updating condition of the target component is determined to be met, allowing the target component to be subjected to software updating operation. The control method for software updating avoids the risk that the whole vehicle cannot be started due to the fact that the residual electric quantity of the storage battery is greatly reduced or drained when the vehicle is remotely updated by software, and improves the service life of the storage battery.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a software update control method and device and an automobile.
Background
At present, with the increase of internet vehicle enterprises and the gradual rise of intelligent internet vehicles, an Over-the-Air (OTA) technology is more and more popularized. Many previous tasks requiring recall and repair can be performed on the automobile parts by using OTA remote technology to update and upgrade the software, so that the automobile software updating cost is reduced, and the method is not limited by time and space.
However, the problems of battery shortage, battery life influence and the like are more and more prominent. Because some parts are carried out in the OTA process under the condition that the whole vehicle is not started, under the condition, the residual electric quantity (SOC) of the storage battery is possibly insufficient or drained, the risk that the whole vehicle cannot be started is caused, and the service life of the storage battery is also reduced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a software updating control method, a software updating control device and an automobile, and solves the problems that when a vehicle is remotely subjected to software flashing, the residual electric quantity of a storage battery is greatly reduced or drained, the whole automobile cannot be started, and the service life of the storage battery is shortened.
According to a first aspect of the present invention, there is provided a software update control method applied to a vehicle, including:
receiving a first request sent by a remote server, wherein the first request is used for requesting software update of a target component in a vehicle;
confirming a component type of the target component according to the first request; the component types include: a high voltage upper electrical system component and a non-high voltage upper electrical system component;
determining whether a software updating condition of the target component is met according to the component type and the residual capacity of a vehicle battery;
and when the software updating condition of the target component is determined to be met, allowing the target component to be subjected to software updating operation.
Optionally, the determining whether the software update condition of the target component is satisfied according to the component type and the remaining capacity of the vehicle battery includes:
when the component type of the target component is a non-high-voltage power-on system component, controlling the target component to carry out high-voltage power-on;
if the target component is successfully electrified at high voltage, determining that the software updating condition of the target component is met;
and if the target component fails to be powered on at high voltage, judging whether the software updating condition of the target component is met or not according to the residual electric quantity of the battery.
Optionally, the determining whether the software update condition of the target component is satisfied according to the component type and the remaining capacity of the vehicle battery further includes:
and when the component type of the target component is a high-voltage power-on system component, judging whether the software updating condition of the target component is met or not according to the residual capacity of the battery.
Optionally, the determining whether the software update condition of the target component is satisfied according to the remaining power of the battery includes:
if the residual capacity of the battery is larger than a first threshold value, determining that the software updating condition of the target component is met;
the first threshold value is determined according to the amount of power required for software update of the target component and the allowable discharge limit of the battery.
Optionally, the first threshold is: and the software of the target component updates the sum of the required electric quantity and the allowable discharge limit value of the battery.
Optionally, the determining whether the software update condition of the target component is satisfied according to the remaining power of the battery further includes:
if the residual electric quantity of the battery is less than or equal to a first threshold value, starting the whole vehicle to charge the battery at high voltage;
if the whole vehicle is started successfully to charge the battery at high voltage, determining that the software updating condition of the target component is met when the residual electric quantity of the battery is larger than the first threshold value;
the first threshold value is determined according to the amount of power required for software update of the target component and the allowable discharge limit of the battery.
Optionally, if the remaining capacity of the battery is less than or equal to the first threshold, after the vehicle is started to charge the battery at high voltage, the method further includes:
and if the residual electric quantity of the battery after charging is not met within a preset time length after the whole vehicle high voltage is not successfully started to charge the battery or the whole vehicle high voltage is successfully started to charge the battery, the software updating condition of the target component is determined not to be met, and the software updating operation of the target component is forbidden.
According to a second aspect of the present invention, there is provided a software update control apparatus applied to a vehicle, comprising:
the system comprises a first receiving module, a second receiving module and a third receiving module, wherein the first receiving module is used for receiving a first request sent by a remote server, and the first request is used for requesting software updating of a target component in a vehicle;
a first processing module, configured to confirm a component type of the target component according to the first request;
the component types include: a high voltage upper electrical system component and a non-high voltage upper electrical system component;
the second processing module is used for determining whether the software updating condition of the target component is met or not according to the component type and the residual capacity of the vehicle battery;
and the control module is used for allowing the software updating operation to be carried out on the target component when the software updating condition of the target component is determined to be met.
According to a third aspect of the present invention, there is provided an automobile comprising a processor, a memory, and a computer program stored on the memory and operable on the processor, wherein the processor implements the steps of the software update control method as described above when executing the computer program.
According to a fourth aspect of the present invention, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the software update control method as described above.
The embodiment of the invention has the beneficial effects that:
in the scheme, when a software flashing request of a target component sent by a remote server is received, whether the target component is a high-voltage power-on system component is confirmed, and whether a software updating condition of the target component is met is further determined by combining the residual capacity of a vehicle battery; and when the software updating condition of the target component is determined to be met, allowing the target component to be subjected to software updating operation. The risk that the whole vehicle cannot be started due to insufficient power or dry discharge of the residual electric quantity of the storage battery in the remote software flashing process is avoided, and the service life of the storage battery is prolonged.
Drawings
FIG. 1 is a diagram of a prior art software update architecture;
FIG. 2 is a flowchart of a software update control method according to an embodiment of the present invention;
FIG. 3 is a second flowchart of a software update control method according to an embodiment of the present invention;
FIG. 4 is a block diagram showing a configuration of a software update control apparatus according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a technical architecture of a software update control method according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
In describing the embodiment of the present invention, a software updating architecture applied to a vehicle in the prior art will be described with reference to fig. 1.
Fig. 1 shows a software update architecture in OTA mode, which is currently common. In fig. 1, an OTA flashing instruction is sent to a vehicle-mounted intelligent terminal (Telematics BOX, referred to as T-BOX) through a remote server, and the T-BOX directly flashes the content to the interior of each target controller (ECU1, ECU2, ECU3) through a Gateway. Energy prediction and storage battery management are not carried out in the scheme, and software updating of some components is carried out in the state that the whole vehicle is not started, so that the problem that the whole vehicle cannot be started and the service life of the storage battery is shortened due to the fact that the residual electric quantity (SOC) of the storage battery is greatly reduced possibly.
The invention provides a software update control method, a software update control device and an automobile, aiming at the problems in the prior art. The method avoids the risk that the whole vehicle cannot be started due to insufficient or dry residual electric quantity of the storage battery in the remote software flashing process, and prolongs the service life of the storage battery.
As shown in fig. 2, an embodiment of the present invention provides a software update control method applied to a vehicle, including:
here, the remote server may include, but is not limited to, a remote server of an automobile host factory.
here, the high-voltage power-on system component refers to a component for controlling components in the vehicle to perform high-voltage power-on. A non-high voltage power-on system component refers to a component that is not used for high voltage power-on of components in the vehicle.
And step 13, determining whether the software updating condition of the target component is met or not according to the component type and the residual capacity of the vehicle battery.
Here, the remaining amount of the vehicle battery, which means a low-voltage storage battery in the vehicle, may be acquired by a battery management system.
And step 14, when the software updating condition of the target component is determined to be met, allowing the software updating operation to be carried out on the target component.
In this embodiment, after receiving a software update request (first request) sent by a remote server, it is determined whether a target component to be flashed indicated by the software update request is a high-voltage power-on system component, and it is further determined, in combination with the remaining power of the current battery, whether a condition for performing software update on the target software is currently satisfied, and when the condition for performing software update on the target component is satisfied, a software update operation is allowed to be performed on the target component, so that a risk that a vehicle cannot be started due to a great reduction or a power shortage of the battery power when a vehicle component is remotely flashed is avoided, and a problem that the battery life is affected due to an excessively low battery power is also avoided.
Further, step 13 mainly includes two cases that the component type of the target component is a non-high-voltage power-on system component and a high-voltage power-on system component.
As shown in fig. 3, step 13 includes:
It should be noted that, if the target component to be updated is a non-high-voltage power-on system component, the target component may be controlled to perform high-voltage power-on, so as to provide a power supply for software update of the target component through the high-voltage power. The risk that the whole vehicle cannot be started when the battery is in power shortage due to the utilization of the battery is avoided. If the target component cannot be powered on at high voltage due to a high-voltage system fault or the like, the battery is required to provide power for the software updating process of the target component. At this time, the residual capacity of the battery is required to be combined, whether the residual capacity of the current battery meets the updating demand capacity of the target software or not is determined, and the excessive power shortage of the battery is avoided, so that the risk problem that the vehicle cannot be started is caused.
As shown in fig. 3, step 13 further includes:
and 132, when the component type of the target component is a high-voltage power-on system component, judging whether the software updating condition of the target component is met according to the residual capacity of the battery.
It should be noted that, if the target component to be updated is a high-voltage power-on system component, the software updating operation is performed, and the power-on control operation of the vehicle cannot be performed during the software updating process, so that if the target component is a high-voltage power-on system component, the battery needs to provide power to complete the software updating. At this time, the remaining capacity of the battery is combined to determine whether the remaining capacity of the current battery meets the updating requirement of the target software and cannot cause excessive power shortage of the battery, so that the problem that the vehicle cannot be started and the service life of the battery is affected is solved.
Specifically, in step 131 and step 132, determining whether the software update condition of the target component is satisfied according to the remaining power of the battery, may further include:
if the residual capacity of the battery is larger than a first threshold value, determining that the software updating condition of the target component is met; the first threshold value is determined according to the amount of power required for software update of the target component and the allowable discharge limit of the battery.
If the residual electric quantity of the battery is less than or equal to a first threshold value, starting the whole vehicle to charge the battery at high voltage; if the whole vehicle is started successfully to charge the battery at high voltage, determining that the software updating condition of the target component is met when the residual electric quantity of the battery is larger than the first threshold value; the first threshold value is determined according to the amount of power required for software update of the target component and the allowable discharge limit of the battery.
In this embodiment, the allowable discharge limit of the battery refers to the lowest remaining capacity of the storage battery. The allowable discharge limit of the battery and the electric quantity required by software updating of the target component are calibration quantities and are preset in the vehicle.
Preferably, the first threshold is: and the software of the target component updates the sum of the required electric quantity and the allowable discharge limit value of the battery.
Here, it can be understood that when the remaining power of the battery satisfies a sum of the power required by the software update of the target component and the allowable discharge limit of the battery, the battery is used to provide power for the software update of the target component, so that a problem of a large power shortage of the battery is not caused, and a problem of a vehicle power shortage risk and a reduction in battery life caused by a large reduction in battery power can be effectively avoided.
Here, if the remaining capacity of the battery is less than or equal to the first threshold, after the vehicle is started to charge the battery at high voltage, the method further includes:
and if the residual electric quantity of the battery after charging is not met within a preset time length after the whole vehicle high voltage is not successfully started to charge the battery or the whole vehicle high voltage is successfully started to charge the battery, the software updating condition of the target component is determined not to be met, and the software updating operation of the target component is forbidden. The time lengths of the preset duration corresponding to different batteries are different and can be calibrated.
According to the scheme, after a software updating request (first request) sent by a remote server is received, whether a target component to be rewritten indicated by the software updating request is a high-voltage power-on system component is confirmed, whether a condition for updating the software of the target software is met is confirmed by further combining the residual electric quantity of a current battery, the electric quantity required by the software updating of the target component and a permissible discharging limit value of the battery, and the software updating operation of the target component is permitted only when the condition for updating the software of the target component is met; when the condition of software updating of target software is not met, software updating operation of the target component is forbidden, the risk that the vehicle cannot be started due to the fact that the battery power is greatly reduced and the power is insufficient when the vehicle component is subjected to remote writing is avoided, and meanwhile the problem that the service life of the battery is influenced due to the fact that the battery power is too low is solved.
The invention also provides a device for realizing the method.
As shown in fig. 4, which shows a software update control apparatus applied to a vehicle, the apparatus 400 includes:
a first receiving module 401, configured to receive a first request sent by a remote server, where the first request is used to request a software update on a target component in a vehicle;
a first processing module 402, configured to confirm a component type of the target component according to the first request; the component types include: a high voltage upper electrical system component and a non-high voltage upper electrical system component;
a second processing module 403, configured to determine whether a software update condition of the target component is satisfied according to the component type and a remaining power of a vehicle battery;
and the control module 404 is configured to allow a software update operation to be performed on the target component when it is determined that the software update condition of the target component is satisfied.
Optionally, the second processing module 403 includes:
the first processing submodule is used for controlling the target component to carry out high-voltage electrification when the component type of the target component is a non-high-voltage electrification system component;
the second processing submodule is used for determining that the software updating condition of the target component is met if the target component is successfully electrified at high voltage;
and the third processing submodule is used for judging whether the software updating condition of the target component is met or not according to the residual electric quantity of the battery if the target component fails to be electrified under high voltage.
Optionally, the second processing module 403 further includes:
and the fourth processing submodule is used for judging whether the software updating condition of the target component is met or not according to the residual capacity of the battery when the component type of the target component is a high-voltage power-on system component.
Optionally, when the third processing sub-module and the fourth processing sub-module determine whether the software update condition of the target component is satisfied according to the remaining power of the battery, the third processing sub-module and the fourth processing sub-module are specifically configured to:
if the residual capacity of the battery is larger than a first threshold value, determining that the software updating condition of the target component is met;
the first threshold value is determined according to the amount of power required for software update of the target component and the allowable discharge limit of the battery.
Optionally, the first threshold is: and the software of the target component updates the sum of the required electric quantity and the allowable discharge limit value of the battery.
Optionally, when the third processing sub-module and the fourth processing sub-module judge whether the software update condition of the target component is satisfied according to the remaining power of the battery, the third processing sub-module and the fourth processing sub-module are further specifically configured to:
if the residual electric quantity of the battery is less than or equal to a first threshold value, starting the whole vehicle to charge the battery at high voltage;
if the whole vehicle is started successfully to charge the battery at high voltage, determining that the software updating condition of the target component is met when the residual electric quantity of the battery is larger than the first threshold value;
the first threshold value is determined according to the amount of power required for software update of the target component and the allowable discharge limit of the battery.
Optionally, when the remaining capacity of the battery is less than or equal to the first threshold, the third processing submodule and the fourth processing submodule start the entire vehicle to charge the battery at high voltage, and are further specifically configured to:
and if the residual electric quantity of the battery after charging is not met within a preset time length after the whole vehicle high voltage is not successfully started to charge the battery or the whole vehicle high voltage is successfully started to charge the battery, the software updating condition of the target component is determined not to be met, and the software updating operation of the target component is forbidden.
The device is a device corresponding to the method embodiment, and all implementation manners in the method embodiment are applicable to the device embodiment, and the same technical effects as the method embodiment can be achieved.
Fig. 5 is a schematic diagram illustrating a technical architecture of a control method for software update according to the present invention.
As shown in fig. 5, after the remote server sends the OTA flush request (the first request) to the complete vehicle T-BOX, the T-BOX will forward the OTA flush request to the "complete vehicle power management controller" through the Gateway, and the power management controller determines whether the flush (software update) condition is satisfied. And when the software updating condition is met, sending an updating permission instruction to the gateway, forwarding the updating permission instruction to the T-BOX through the gateway, and controlling the T-BOX to update the software of the target component. And when the software updating condition is not met, sending an updating forbidding instruction to the gateway, forwarding the updating forbidding instruction to the T-BOX through the gateway, forbidding software updating on the target component through the control of the T-BOX, and feeding back a flash result to the remote server. Here, the remote server refers to an automobile host factory server.
The target component refers to the target ECU1 or the target ECU2 or the target ECU3 in fig. 5.
Here, the power management controller includes any controller capable of receiving the state of remaining charge of the battery.
As an implementation manner, a control method of the software update is described below with reference to fig. 5.
Firstly, the whole vehicle brush writing parts (target parts) are non-high-voltage power-on system parts (the non-high-voltage power-on system parts).
1. Carrying out high-voltage power-on, if the high-voltage power-on is successful, sending an update permission instruction to the Gateway, and forwarding the update permission instruction to the T-BOX through the Gateway so as to control the target component to start software update;
2. and (3) carrying out high-voltage electrification, if the high-voltage electrification cannot be finished (the reasons such as high-voltage system faults and the like), judging the electric quantity of the storage battery:
if SOC1 (the remaining capacity of the current storage battery) is larger than delta SOC (the required capacity SOC for OTA flashing) + SOC2 (the allowable discharge limit of the storage battery), flashing is allowed;
if SOC1 (the remaining power of the current storage battery) is less than or equal to delta SOC (the power SOC required by OTA flashing) + SOC2 (the allowable discharge limit of the storage battery), the flashing is forbidden;
secondly, the whole vehicle brush writing parts are parts of a high-voltage power-on system:
1. and judging the electric quantity of the storage battery.
1) If SOC1 (the remaining capacity of the current storage battery) > delta SOC1 (the required capacity of the OTA for flashing) + SOC2 (the allowable discharge limit of the storage battery), flashing is allowed;
2) if the SOC1 (the residual electric quantity of the current storage battery) is less than or equal to delta SOC1 (the electric quantity required by OTA flashing) + SOC2 (the allowable discharge limit value of the storage battery), starting the whole vehicle to charge the storage battery at high voltage; wherein the content of the first and second substances,
if the high-voltage charging is started successfully, when the SOC1 is larger than or equal to delta SOC1 (the electric quantity required by OTA flashing) + SOC2 (the allowable discharge limit of the storage battery), flashing is allowed;
if the high-voltage charging is started successfully, the charging condition still cannot be met after 8 hours: if the SOC1 is more than or equal to delta SOC1 (the electric quantity SOC required by OTA flashing) + SOC2 (the allowable discharge limit value of the storage battery), the flashing is forbidden;
if the high-voltage charging cannot be started, the writing is directly prohibited.
The allowable discharge limit of the storage battery and the electric quantity required by the OTA flash corresponding to the target component are calibration quantities and are preset in the energy management controller.
According to the control method for software updating in the OTA mode, the software updating in the vehicle OTA mode is controlled by setting the flashing condition in the OTA mode, the risk that the vehicle cannot be started due to storage battery power shortage caused by updating of the vehicle software in the remote OTA mode is avoided, and the problems of cycle life reduction and the like caused by over-discharge of the storage battery are avoided.
The invention also provides an automobile, which comprises a processor, a memory and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the steps of the software updating control method when executing the computer program.
It is noted that, in the embodiments of the present invention, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.
Claims (10)
1. A control method for software update is characterized by being applied to a vehicle and comprising the following steps:
receiving a first request sent by a remote server, wherein the first request is used for requesting software update of a target component in a vehicle;
confirming a component type of the target component according to the first request; the component types include: a high voltage upper electrical system component and a non-high voltage upper electrical system component;
determining whether a software updating condition of the target component is met according to the component type and the residual capacity of a vehicle battery;
and when the software updating condition of the target component is determined to be met, allowing the target component to be subjected to software updating operation.
2. The software update control method according to claim 1, wherein the determining whether the software update condition of the target component is satisfied according to the component type and a remaining capacity of a vehicle battery includes:
when the component type of the target component is a non-high-voltage power-on system component, controlling the target component to carry out high-voltage power-on;
if the target component is successfully electrified at high voltage, determining that the software updating condition of the target component is met;
and if the target component fails to be powered on at high voltage, judging whether the software updating condition of the target component is met or not according to the residual electric quantity of the battery.
3. The software update control method according to claim 1, wherein the determining whether the software update condition of the target component is satisfied according to the component type and a remaining capacity of a vehicle battery further comprises:
and when the component type of the target component is a high-voltage power-on system component, judging whether the software updating condition of the target component is met or not according to the residual capacity of the battery.
4. The method for controlling software update according to claim 2 or 3, wherein the determining whether the software update condition of the target component is satisfied according to the remaining capacity of the battery includes:
if the residual capacity of the battery is larger than a first threshold value, determining that the software updating condition of the target component is met;
the first threshold value is determined according to the amount of power required for software update of the target component and the allowable discharge limit of the battery.
5. The software update control method according to claim 4, wherein the first threshold value is: and the software of the target component updates the sum of the required electric quantity and the allowable discharge limit value of the battery.
6. The method according to claim 2 or 3, wherein the determining whether the software update condition of the target component is satisfied according to a remaining power of a battery further includes:
if the residual electric quantity of the battery is less than or equal to a first threshold value, starting the whole vehicle to charge the battery at high voltage;
if the whole vehicle is started successfully to charge the battery at high voltage, determining that the software updating condition of the target component is met when the residual electric quantity of the battery is larger than the first threshold value;
the first threshold value is determined according to the amount of power required for software update of the target component and the allowable discharge limit of the battery.
7. The software updating control method according to claim 6, wherein if the remaining capacity of the battery is less than or equal to the first threshold, after the vehicle high voltage is started to charge the battery, the method further comprises:
and if the residual electric quantity of the battery after charging is not met within a preset time length after the whole vehicle high voltage is not successfully started to charge the battery or the whole vehicle high voltage is successfully started to charge the battery, the software updating condition of the target component is determined not to be met, and the software updating operation of the target component is forbidden.
8. A software update control device, applied to a vehicle, includes:
the system comprises a first receiving module, a second receiving module and a third receiving module, wherein the first receiving module is used for receiving a first request sent by a remote server, and the first request is used for requesting software updating of a target component in a vehicle;
a first processing module, configured to confirm a component type of the target component according to the first request; the component types include: a high voltage upper electrical system component and a non-high voltage upper electrical system component;
the second processing module is used for determining whether the software updating condition of the target component is met or not according to the component type and the residual capacity of the vehicle battery;
and the control module is used for allowing the software updating operation to be carried out on the target component when the software updating condition of the target component is determined to be met.
9. An automobile, characterized in that the automobile comprises a processor, a memory, and a computer program stored on the memory and operable on the processor, the processor implementing the steps of the software update control method according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the software update control method according to any one of claims 1 to 7.
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| CN113320491A (en) * | 2021-07-16 | 2021-08-31 | 重庆金康赛力斯新能源汽车设计院有限公司 | Controller upgrading method and system |
| CN113696781A (en) * | 2021-08-10 | 2021-11-26 | 岚图汽车科技有限公司 | New energy automobile OTA upgrade storage battery capacity detection method and system |
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| CN113696781A (en) * | 2021-08-10 | 2021-11-26 | 岚图汽车科技有限公司 | New energy automobile OTA upgrade storage battery capacity detection method and system |
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