CN115195635B - Power consumption risk control method for vehicle OTA upgrading - Google Patents
Power consumption risk control method for vehicle OTA upgrading Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
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Abstract
The invention provides a vehicle OTA upgrade power consumption risk control method, when an OTA server issues an upgrade package, power consumption experience data of a controller ECU are configured in the upgrade package in advance; under the condition that a user selects to leave a vehicle or reserve upgrading, the OTA application of the vehicle analyzes the configured power consumption experience data in the upgrading package, and calculates the power consumption value, the residual power value and the duration of the residual power consumed by the upgrading task by combining the power quantity and the service life of the storage battery of the current target vehicle; if the OTA application compares that the duration of the residual electric quantity of the storage battery after upgrading is lower than the interval duration used by the target vehicle, an alarm message is sent, the OTA server sends a risk message to a user after receiving the alarm request, and the user selects to continue or cancel the upgrading task after receiving the message, so that the risk of exhausting the storage battery of the vehicle is prevented in advance. The risk that the power consumption of the storage battery cannot be ignited when the vehicle is away from the vehicle or the vehicle is scheduled to be installed is solved, and a reasonable control method is provided.
Description
Technical Field
The invention relates to the technical field of vehicle safety control, in particular to a vehicle OTA upgrading power consumption risk control method.
Background
At present, the modes of upgrading the vehicle system software mainly comprise modes of immediate upgrading, off-vehicle upgrading, reserved upgrading and the like. Immediate upgrade requires the user to wait on board until the upgrade is completed; and the vehicle can be separated after the user selects the vehicle separation upgrading and reserved upgrading modes, and the vehicle OTA application can complete the whole upgrading by self power supply of the storage battery. With the fast pace of modern life, most car owners cannot keep on the car for a long time to wait for immediate upgrade, and more modes such as off-car upgrade and reserved upgrade are selected.
With the gradual improvement of the intellectualization of the whole vehicle, more and more controllers depend on software upgrading to improve performance and repair potential faults, more and more controllers are upgraded through OTA, more and more controllers are possible to be upgraded by one-time issued upgrading tasks, and upgrading requirements are more and more frequent. The vehicle OTA upgrading process is completed through power supply of a vehicle storage battery, and if the OTA upgrading task is too long or hardware resources are too much consumed, the storage battery consumes serious power; or for personal reasons for a period of time when the vehicle is not in use, the battery is depleted and eventually the vehicle fails to ignite.
Therefore, in the situation that the user selects to leave the vehicle or reserve for upgrading, whether the current electric quantity of the storage battery of the vehicle meets the threshold value needs to be judged, and a higher and more conservative electric quantity threshold value is set to ensure that the residual battery after upgrading does not influence the starting of the subsequent vehicle. However, setting a higher and more conservative power threshold value does not take into consideration the factors such as the gradual weakening of the endurance capacity as the service life of the battery increases, the interval duration of the vehicle used by the vehicle owner, the duration of the remaining power of the battery after the upgrade is completed, and the like, so that the following problems may exist: firstly, when a vehicle owner of a newer vehicle needs upgrading urgently, upgrading cannot be performed due to the fact that the electric quantity threshold of a storage battery is set too high; secondly, after a user leaves the vehicle, the vehicle is not used for a period of time due to personal reasons, the duration of the storage battery is shorter due to more upgrade power consumption, and the vehicle cannot be ignited when the vehicle owner uses the vehicle again; thirdly, for the vehicle with longer service life, the aging and electricity storage capacity of the storage battery is weakened, the discharging is faster, the upgrading power consumption is more, the electric quantity threshold value of the storage battery is possibly set lower, and the risk that the vehicle cannot be ignited after the upgrading is finished after the vehicle is placed for a long time exists.
CN11267777 discloses an "OTA upgrading method, storage medium, electronic device and vehicle", the method comprising the steps of: when an ECU device to be upgraded is subjected to OTA upgrading by using an OTA upgrading packet, acquiring performance index parameters of a vehicle storage battery, and acquiring the brushing log information of the ECU device to be upgraded and the current load condition of the whole vehicle network; training an OTA upgrade power consumption prediction model, and predicting the power consumption of the ECU device to be upgraded according to the performance index parameters of the current storage battery, the brushing log information of the ECU device to be upgraded and the current network load condition; after the power consumption predicted value is obtained, the power battery charges the storage battery according to the power consumption predicted value; and when the electric quantity value of the storage battery is detected to be larger than or equal to the power consumption predicted value, triggering the ECU device to be upgraded to carry out OTA upgrading. According to the method, the power consumption of OTA upgrading of the ECU device to be upgraded is predicted, so that the OTA upgrading rate can be effectively improved. Before upgrading, the invention needs to train according to the ECU of the real vehicle, the performance index parameters of the storage battery of the vehicle and the network load condition; if the vehicle is not upgraded before or the ECU included in the upgrading task is not upgraded on the vehicle before, the ECU brush log of the vehicle does not have referential property, meanwhile, the habit and frequency of the user are not considered in the upgrading process, and when the shortage of the electric quantity of the storage battery is detected, the power battery is used for charging, and the risk of electric quantity consumption of the user is not informed.
Therefore, it is a technical problem that a person skilled in the art is urgent to solve how to objectively evaluate the power consumption of the vehicle controller upgrade.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a vehicle OTA upgrading power consumption risk control method, which solves the problem that the vehicle cannot be ignited due to insufficient electric quantity of a vehicle storage battery when a user leaves the vehicle for upgrading or reserves for upgrading in the prior art.
The invention adopts the following technical scheme:
In the vehicle OTA upgrading power consumption risk control method, when an OTA server issues an upgrading packet, power consumption experience data of a controller ECU are configured in the upgrading packet in advance; under the condition that a user selects to leave a vehicle or reserve upgrading, the OTA application of the vehicle analyzes the configured power consumption experience data in the upgrading package, and calculates the power consumption value, the residual power value and the duration of the residual power consumed by the upgrading task by combining the power quantity and the service life of the storage battery of the current target vehicle;
If the OTA application compares that the duration of the residual electric quantity of the storage battery after upgrading is lower than the interval duration used by the target vehicle, an alarm message is sent, the OTA server sends a risk message to a user after receiving the alarm request, and the user selects to continue or cancel the upgrading task after receiving the message, so that the risk of exhausting the storage battery of the vehicle is prevented in advance.
Further, the method for configuring the power consumption experience data of the controller ECU in the upgrade package in advance comprises the following steps:
Acquiring experience values of the upgrade power consumption of each ECU by an OTA intelligent system, training power consumption sample data of a target vehicle by the OTA intelligent system, and finally obtaining the experience values of the upgrade power consumption of each ECU of the storage batteries with different service lives;
The OTA intelligent system receives power consumption batch test data of a single ECU (electronic control unit) upgraded under storage batteries with different service lives, power consumption batch test data of an ECU combined upgraded under storage batteries with different service lives and experience data of service lives and endurance capacities of the storage batteries, and outputs power consumption electricity experience values of the storage batteries with different service lives under the condition of single ECU or combined ECU upgrade.
Further, sending an alert message requests the OTA server through the TBOX.
Further, when the target vehicle executes the OTA upgrade task, the method comprises the following processing steps:
S1: acquiring OTA upgrade historical power consumption experience data of a target vehicle configured by an upgrade package; the OTA upgrading historical power consumption experience data records power consumption data of an upgrading process and power duration data of a vehicle in a stop state corresponding to the target vehicle under different storage battery working state parameters;
s2: acquiring current working state parameters of a storage battery of a target vehicle, matching the current working state parameters with the OTA upgrading historical power consumption experience data, estimating the working state parameters of the storage battery of the target vehicle after the upgrading process is completed, and matching the working state parameters with the OTA upgrading historical power consumption experience data to estimate the vehicle stop state power-on duration of the target vehicle after the upgrading process is completed;
S3: acquiring current interval duration data of the user-used vehicles of the target vehicle, judging that the storage battery power consumption risk exists when the vehicle stop state power-on duration after the target vehicle finishes the upgrading process is smaller than the interval duration of the user-used vehicles, and sending a power consumption risk notification message.
The current working state parameters of the storage battery of the target vehicle comprise the current service life of the storage battery of the target vehicle and the current residual electric quantity of the storage battery; and the working state parameters of the storage battery of the target vehicle after the upgrading process is completed comprise the service life of the current storage battery of the target vehicle and the residual electric quantity of the storage battery after the upgrading process is completed.
In the step S2, the specific manner of estimating the working state parameter of the storage battery after the target vehicle finishes the upgrading process is as follows:
And matching and inquiring the power consumption of the target vehicle in the upgrading process of the OTA under the current service life of the storage battery and the current residual power consumption condition of the target vehicle by taking the corresponding relation between different storage battery working state parameter conditions of the target vehicle and the power consumption data of the upgrading process recorded in the OTA upgrading history power consumption experience data as a matching basis, and estimating the residual power of the storage battery of the target vehicle after the upgrading process is completed by carrying out difference calculation on the current residual power of the target vehicle and the power consumption of the upgrading process, so that the current service life of the storage battery of the target vehicle and the residual power of the storage battery after the upgrading process are taken as the working state parameters of the storage battery of the target vehicle after the upgrading process is completed.
Further, after the step S3, the method further includes:
s4: receiving a user upgrade intention message: if the user upgrade intention message indicates to confirm the upgrade, continuing to execute OTA upgrade processing; and if the user upgrade intention message indicates to cancel the upgrade, the OTA upgrade task is exited.
In the invention, the ECU upgrades batch test data of the power consumption of the storage battery, wherein the batch test data comprises data obtained by repeated test on a target vehicle and user real vehicle power consumption data collected by an OTA server; meanwhile, the data are power consumption sample data obtained by upgrading the storage batteries with different using time lengths.
In the invention, the OTA server is a program running on the cloud end and is responsible for managing the OTA data of all participating vehicles, including inputting an OTA upgrade package, issuing an OTA upgrade task, collecting vehicle-end information and the like.
The OTA application is a program running on the vehicle end and is responsible for collecting the version of the vehicle and the ECU software upgrades of the vehicle.
The OTA server and the OTA application are connected via ethernet, the protocol typically used being http/https.
Compared with the prior art, the invention has the following beneficial effects:
1. Aiming at the risk that the power consumption of the storage battery cannot be ignited when the vehicle leaves or is scheduled to be installed, the invention provides a reasonable control method, the ECU upgrade power consumption experience value under the storage batteries with different service lives is obtained according to batch test data, when an upgrade task is executed, OTA application can match the power consumption experience value of the current task of the vehicle upgrade according to configuration data issued by an OTA server, so that a scientific risk threshold is obtained, meanwhile, the use habit of the current user, namely the interval duration of the vehicle is considered, the power consumption risk is estimated in advance, and the user is reminded in time.
2. According to the invention, the power consumption experience data come from advanced batch tests, the fact that the batteries of all age groups are subjected to single ECU object and all combined ECU upgrades to obtain experience data is considered, and the training data is more comprehensive; in the prior art, the experience diagnosis is performed by relying on the target vehicle to write the log, and if the target ECU does not write the log correspondingly before the vehicle in the upgrading task, the log cannot be referred to. In addition, the invention combines the habit of the user, and even if the electric quantity of the storage battery is surplus, the residual electric quantity also considers the habit of the user, and the next time after the upgrading is finished, the ignition is performed for a long time.
3. The invention adopts the OTA upgrade package downloaded in advance, so that the upgrade package can be directly decompressed and operated without waiting for downloading when the upgrade is confirmed, and the downloaded upgrade package can be immediately recalled to execute the upgrade even if the upgrade is canceled at the moment and the electric quantity of the vehicle storage battery is sufficient.
Drawings
FIG. 1 is a flow chart of a vehicle OTA upgrade power consumption risk control method of the present invention;
Fig. 2 is a flowchart of the process of acquiring empirical data of the power consumption and the endurance of the battery of the ECU upgrade battery in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. The embodiments described in the figures herein and combinations of embodiments of the invention may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the invention provides a vehicle OTA upgrade power consumption risk control method, which comprises the following steps:
S1, an operator issues an upgrade task, when a vehicle detects the upgrade task, an OTA server obtains corresponding power consumption experience data from a database according to a target ECU in an upgrade package, and obtains vehicle use interval duration experience data according to a target vehicle VIN code, generates a configuration file, packages the configuration file in the upgrade package, and issues the upgrade package to a target vehicle.
S2, the OTA server detects the upgrade package, and the OTA application downloads the upgrade package to prompt a user to install.
S3, the user selects off-vehicle or reserved installation, the OTA application firstly analyzes the configuration file of the upgrade package, simultaneously reads the electric quantity of the storage battery of the current vehicle, and calculates the electric quantity consumed by all controllers of the current upgrade task and the electric quantity value remained after the upgrade is finished.
And S4, the OTA application compares the battery duration according to the calculated residual electric quantity value and the battery duration of the target vehicle in the configuration file in combination with the vehicle interval duration used by the user, and if the battery duration is lower than the vehicle interval duration used by the user, the OTA application requests the OTA server to inform the user of the upgrading risk through the TBOX.
According to the method, OTA application evaluates whether the user vehicle upgrade reaches a risk threshold, and if so, the OTA application requests an OTA server to send a risk alarm to a user mobile phone through TBOX;
The risk warning comprises informing a user of the current electric quantity of the storage battery, upgrading the power consumption electric quantity and estimating the sustainable duration of the residual electric quantity.
And the OTA server receives the OTA application upgrading risk request and sends a risk message to the mobile phone of the user.
After receiving the upgrade risk message, the user decides to continue upgrade or cancel.
User confirms or cancels the upgrade, the OTA server receives the command of confirming or canceling the upgrade, informs the OTA application through TBOX, and the OTA application performs the following actions according to the received user feedback message:
S11, the user confirms that the updating is continued, and the OTA application continues to execute the updating.
S12, confirming cancellation by the user, exiting upgrading by the OTA application, and powering down the whole vehicle to sleep.
In the invention, OTA application detects whether an update upgrade package exists; if yes, the OTA server issues an upgrade package, and the upgrade package is internally provided with electricity consumption experience data of the target vehicle. And after the OTA application downloads the upgrade package, prompting the user to install, and selecting to leave the vehicle or reserve the upgrade.
The OTA application analyzes the power consumption experience data in the upgrade package, calculates the power consumption of the upgrade task and the power continuation time of the residual power of the storage battery according to the current power storage capacity of the vehicle, compares the use interval time of the user vehicle, and predicts whether the power consumption risk of the storage battery exists;
The risk of battery power exhaustion refers to that a server collects the vehicle interval duration of a user at ordinary times, calculates an experience value for evaluating the duration of the next vehicle interval after the user leaves a vehicle, compares the current updated battery power duration with the experience value by OTA application, and judges that the vehicle possibly cannot be ignited when the user uses the vehicle again next time if the battery power duration is lower than the average vehicle interval duration used by the user.
According to the invention, the target vehicle power consumption empirical data needs an OTA intelligent system to train sample data, and finally the empirical values of the upgrade power consumption of each ECU of the storage batteries with different service lives are obtained.
Referring to fig. 2, the OTA intelligent system refers to a program running inside an OTA server and executing a power consumption algorithm model, where the program receives power consumption batch test data of a single ECU upgrading under different service life storage batteries, power consumption batch test data of an ECU combination upgrading under different service life storage batteries, storage battery service life and endurance experience data, and outputs power consumption electricity experience values of different service life storage batteries under the condition of single ECU or combination ECU upgrading.
The ECU combined upgrade is an ECU object combined upgrade supporting OTA on a vehicle, and comprises serial and parallel upgrades of two or more ECUs and serial and parallel upgrades divided into a plurality of subtasks.
The ECU upgrades batch test data of the power consumption of the storage battery, wherein the batch test data comprises data obtained by repeated test of a real vehicle and user real vehicle power consumption data collected by an OTA server; meanwhile, the data are power consumption sample data obtained by upgrading the storage batteries with different using time lengths.
The power consumption algorithm model can be further simplified, and after the ECU power consumption time length sample data are ordered, a median is found and used as an empirical value.
Further, the OTA server can collect the interval duration of the user using the vehicle, the using duration of the vehicle storage battery and the cruising ability for a long time, and perform the dynamic update.
Aiming at the risk that the battery power consumption cannot be ignited when the vehicle is away from the vehicle or the vehicle is scheduled to be installed, the invention provides a reasonable control method, firstly, ECU upgrade power consumption experience values under the batteries with different service lives are obtained according to batch test data, when an upgrade task is executed, OTA application can match the power consumption experience values of the current task of the vehicle upgrade according to configuration data issued by an OTA server, so that a scientific risk threshold is obtained, meanwhile, the use habit of the current user, namely the interval duration of the vehicle is considered, the power consumption risk is estimated in advance, the user is reminded in time, and the situation that the next vehicle cannot be ignited by the user is avoided.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the technical solution, and those skilled in the art should understand that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the present invention, and all such modifications and equivalents are included in the scope of the claims.
Claims (9)
1. The power consumption risk control method for the vehicle OTA upgrade is characterized in that power consumption experience data of a controller ECU are configured in the upgrade package in advance when an OTA server issues the upgrade package; under the condition that a user selects to leave a vehicle or reserve upgrading, the OTA application of the vehicle analyzes the configured power consumption experience data in the upgrading package, and calculates the power consumption value, the residual power value and the duration of the residual power consumed by the upgrading task by combining the power quantity and the service life of the storage battery of the current target vehicle;
If the OTA application compares that the duration of the residual electric quantity of the storage battery after upgrading is lower than the interval duration used by the target vehicle, an alarm message is sent, the OTA server sends a risk message to a user after receiving the alarm request, and the user selects to continue or cancel the upgrading task after receiving the message, so that the risk of exhausting the storage battery of the vehicle is prevented in advance.
2. The method for controlling power consumption risk of OTA upgrade of a vehicle according to claim 1, wherein the way of configuring power consumption experience data of the controller ECU in an upgrade package in advance includes:
Acquiring experience values of the upgrade power consumption of each ECU by an OTA intelligent system, training power consumption sample data of a target vehicle by the OTA intelligent system, and finally obtaining the experience values of the upgrade power consumption of each ECU of the storage batteries with different service lives;
The OTA intelligent system receives power consumption batch test data of a single ECU (electronic control unit) upgraded under storage batteries with different service lives, power consumption batch test data of an ECU combined upgraded under storage batteries with different service lives and experience data of service lives and endurance capacities of the storage batteries, and outputs power consumption electricity experience values of the storage batteries with different service lives under the condition of single ECU or combined ECU upgrade.
3. The method for controlling power consumption risk of OTA upgrades of a vehicle according to claim 1 wherein the sending of the alert message requests the OTA server through TBOX.
4. The vehicle OTA upgrade power consumption risk control method according to claim 1, characterized by comprising the following processing steps when the target vehicle performs an OTA upgrade task:
S1: acquiring OTA upgrade historical power consumption experience data of a target vehicle configured by an upgrade package; the OTA upgrading historical power consumption experience data records power consumption data of an upgrading process and power duration data of a vehicle in a stop state corresponding to the target vehicle under different storage battery working state parameters;
s2: acquiring current working state parameters of a storage battery of a target vehicle, matching the current working state parameters with the OTA upgrading historical power consumption experience data, estimating the working state parameters of the storage battery of the target vehicle after the upgrading process is completed, and matching the working state parameters with the OTA upgrading historical power consumption experience data to estimate the vehicle stop state power-on duration of the target vehicle after the upgrading process is completed;
S3: acquiring current interval duration data of the user-used vehicles of the target vehicle, judging that the storage battery power consumption risk exists when the vehicle stop state power-on duration after the target vehicle finishes the upgrading process is smaller than the interval duration of the user-used vehicles, and sending a power consumption risk notification message.
5. The method for controlling power consumption risk in a vehicle OTA upgrade according to claim 4 wherein the current battery operating state parameters of the target vehicle include the current battery life and the current remaining battery power of the target vehicle; and the working state parameters of the storage battery of the target vehicle after the upgrading process is completed comprise the service life of the current storage battery of the target vehicle and the residual electric quantity of the storage battery after the upgrading process is completed.
6. The method for controlling power consumption risk of OTA upgrade of a vehicle according to claim 4, wherein in step S2, the estimating the working state parameter of the storage battery after the target vehicle finishes the upgrade process is as follows:
And matching and inquiring the power consumption of the target vehicle in the upgrading process of the OTA under the current service life of the storage battery and the current residual power consumption condition of the target vehicle by taking the corresponding relation between different storage battery working state parameter conditions of the target vehicle and the power consumption data of the upgrading process recorded in the OTA upgrading history power consumption experience data as a matching basis, and estimating the residual power of the storage battery of the target vehicle after the upgrading process is completed by carrying out difference calculation on the current residual power of the target vehicle and the power consumption of the upgrading process, so that the current service life of the storage battery of the target vehicle and the residual power of the storage battery after the upgrading process are taken as the working state parameters of the storage battery of the target vehicle after the upgrading process is completed.
7. The method for controlling power consumption risk of OTA upgrade of a vehicle according to claim 4, further comprising, after said step S3:
s4: receiving a user upgrade intention message: if the user upgrade intention message indicates to confirm the upgrade, continuing to execute OTA upgrade processing; and if the user upgrade intention message indicates to cancel the upgrade, the OTA upgrade task is exited.
8. The method for controlling power consumption risk of OTA upgrade of a vehicle according to claim 2, wherein the ECU upgrades batch test data of power consumption of the storage battery, including data obtained by repeated test on the target vehicle and real vehicle power consumption data of the user collected by the OTA server; meanwhile, the data are power consumption sample data obtained by upgrading the storage batteries with different using time lengths.
9. The method of claim 8, wherein the OTA server collects the interval duration of the user's vehicle, the duration of the vehicle's battery, and the endurance for a long period of time, and updates the power consumption for the vehicle.
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| WO2019083440A2 (en) * | 2017-10-24 | 2019-05-02 | 华为国际有限公司 | Vehicle-mounted device upgrading method and related device |
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