CN115675320A - Distributed method for updating functions, and updating device and updating system for motor vehicle - Google Patents
Distributed method for updating functions, and updating device and updating system for motor vehicle Download PDFInfo
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- CN115675320A CN115675320A CN202210876368.9A CN202210876368A CN115675320A CN 115675320 A CN115675320 A CN 115675320A CN 202210876368 A CN202210876368 A CN 202210876368A CN 115675320 A CN115675320 A CN 115675320A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/34—Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters
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Abstract
The invention relates to an updating assembly (5) for a vehicle control device (43) in a vehicle, wherein the updating assembly is implemented in the vehicle control device (43), in particular in the form of a software component, and is designed to receive (S6) one or more operating parameters and/or one or more sub-functions outside the vehicle, and to modify (S7, S8) the vehicle function as a function of the one or more operating parameters and/or the one or more sub-functions.
Description
Technical Field
The invention relates to an updating system, in which a large number of motor vehicles in a fleet of vehicles are communicatively connected to a central unit (cloud), wherein the vehicle functions can be modified by means of the central unit.
Technical Field
It is a common trend for vehicles to be communicatively connected with a central unit in order to continuously transmit operational data to the central unit for evaluation there. This is commonly used for vehicle on-site monitoring and to provide vehicle information to a vehicle user via a terminal. The operational data relates to vehicle usage data or data regarding the usage and type of operation of a particular component of the vehicle, such as a vehicle battery of an electric vehicle.
Software updates for updating vehicle functions can also be transmitted to the motor vehicle via the communication connection without the vehicle having to be brought to the workshop for this purpose. These software updates may relate to the entire control device software or only to parts of the vehicle functions.
Thus, for example, document US 9,285,944 A1 discloses a process comprising: providing access to a cloud service via the internet to adapt a user interface of a vehicle, wherein the cloud service manages a database of user accounts; providing a selection option for identifying a vehicle type from a plurality of vehicle types, wherein each vehicle type is assigned to a system component corresponding to that vehicle type and the system component provides a local interface for that vehicle type; identifying a plurality of applications available for the vehicle type, wherein each application is provided with a predefined code for communicating with at least one control interface of the system component; identifying an application from a plurality of applications, wherein the application provides an App interface that should be added to a user interface of a vehicle; generating a customer-specific configuration of a user interface for the vehicle type, the user interface including a local interface provided by at least one system component set up for the App interface of the vehicle type and application, storing the customer-specific configuration in a database associated with cloud services via the internet in a user account; and wirelessly transmitting at least a portion of the adapted configuration from the cloud service to the vehicle to cause at least a portion of an image for a user interface to be presented on a vehicle display, wherein the method is performed by a processor.
Disclosure of Invention
According to the invention, an updating assembly for a vehicle control device according to claim 1 and a method and an updating system for providing vehicle-specific function updates in a vehicle control device according to the parallel independent claims are provided.
Further developments are specified in the dependent claims.
According to a first aspect, an updating component, in particular computer-implemented, for a vehicle control device in a vehicle is provided, wherein the updating component is implemented in the vehicle control device, in particular in the form of a software component, and is designed to
-receiving one or more operating parameters and/or one or more sub-functions outside the vehicle,
-modifying a vehicle function in accordance with the one or more operating parameters and/or one or more sub-functions.
By using a central unit communicatively connected to the vehicles of the platoon, software updates and/or re-parameterization of one or more vehicle functions can be performed in a simple manner by transmitting to the vehicles. However, due to the vehicle-specific different loads of one or more vehicle components, which loads result from different fields of use, types of applications, types of operation, driving behavior of the driver, etc., it is not always helpful to perform software updates or reparameterization across fleets of vehicles in general.
Thus, vehicle-specific software updates and/or parameterizations should be implemented in order to be able to better take into account different application situations, different usage or driving behaviors, in particular for the vehicle battery in an electric vehicle. For this purpose, the vehicle functions should be updated individually so that they can be better adapted to the actual vehicle use of the individual vehicle concerned. In particular, such updating of the vehicle functions has the objective of reducing the component load by means of individual parameterization. The driving behaviour, reliability and service life of the components of each vehicle in the fleet can thereby be improved, since the situation of each individual vehicle can be taken into account.
The vehicle function is determined by the operating parameters and/or subfunctions. The operating parameters represent parameters that are interpreted by and influence the function of a corresponding vehicle function in a vehicle control device of a vehicle. The sub-functions represent, for example, software subroutines used by vehicle functions to calculate the various variables. For example, a sub-function may represent a computational formula.
Prior to a software update of the vehicle control device, which updates the vehicle functions, extensive testing of new software versions is required in the scope of the release process in order to release the corresponding vehicle functions to be modified for the vehicle type concerned. Such software distribution processes mostly require a lot of time and are generally not vehicle-specifically executable, but only for the type of vehicle concerned. Due to the individual use of the vehicle, it may be disadvantageous if the state of certain components of the vehicle is strongly influenced by the use of the vehicle. This is particularly true for electric vehicles with vehicle batteries, since the state of the vehicle battery is largely dependent on the individual use and load of the vehicle battery.
In contrast to software updates of vehicle control devices, which completely or partially update the control device software, simple reparameterization of existing vehicle functions does not require reissuing.
The above-described method provides for setting up an update software component for a software system of the vehicle control device. The updated software component may correspond to validated and released software that may be used by different vehicle manufacturers in different vehicle types and distributed for all vehicle types. This enables the vehicle-specific implementation of the new parameterization transmitted by the central unit without having to carry out the software release process anew.
In this way, vehicle parameterizations and/or sub-functions can be set for the vehicle control devices of the individual vehicles, so that vehicle-specific setting or configuration of one or more vehicle functions can be carried out for the corresponding function without a release process. The vehicle functions concerned can therefore be adapted to the particular or changing vehicle use vehicle-specifically faster and with less effort, without separate issuing methods.
In particular, the updating component may be configured to receive and decrypt the one or more operating parameters and/or the one or more sub-functions in encrypted form, to verify the one or more operating parameters and/or the one or more sub-functions, and/or to detect operating variables of the motor vehicle, in particular to preprocess the operating variables, and/or to aggregate and/or compress the operating variables, and to prepare the operating variables for transmission outside the vehicle.
In particular, the update software component may be arranged to detect, compress and encrypt operational variables and to communicate the operational variables to the central unit. The operating variables are processed, decompressed and/or decrypted in the central unit and one or more operating parameters and/or one or more subfunctions which are intended for the vehicle-specific vehicle function are determined therefrom.
Vehicle-specific operating parameters are transmitted to the individual vehicles, and an updating software component integrated in the vehicle control device undertakes the tasks of parameter verification and parameter interpretation. The operating parameters verified and interpreted in this way are now processed in the corresponding vehicle functions, so that they can be used in a vehicle-specific manner adapted to the respective vehicle use.
According to a further aspect, a method for providing a vehicle-specific function update in a vehicle control device of a vehicle in question is provided, wherein one or more operating parameters and/or one or more sub-functions are received outside the vehicle by means of the abovementioned update component, and wherein the vehicle function is modified as a function of the one or more operating parameters and/or the one or more sub-functions.
Furthermore, the modified vehicle function may be executed in the vehicle control device.
According to a further aspect, an updating system is provided, having a plurality of vehicle control devices of a motor vehicle and a central unit which is connected in a communicating manner to each vehicle control device, wherein a plurality of the above-described updating components are provided for each vehicle control device, wherein the central unit is designed to receive operating variables from the vehicle control devices, to generate one or more operating parameters and/or one or more sub-functions for the vehicle control device concerned therefrom and to transmit them to the vehicle control device concerned.
Drawings
Embodiments are explained in more detail below based on the drawings.
Fig. 1 shows a schematic view of a system for collecting operational data of a fleet of multiple motor vehicles in a central unit and for transmitting vehicle-specific updated software components to the motor vehicles;
FIG. 2 shows a schematic diagram of an update system for sub-applications or parameters that individually provide vehicle functions in a large number of vehicles by a central unit;
FIG. 3 shows a flow chart illustrating a method for providing operating parameters and/or sub-functions in individual vehicles by means of an updating system; and
fig. 4 shows an exemplary charging profile of a vehicle battery.
Detailed Description
Fig. 1 shows a system 1 for collecting operational data of a fleet 3 of motor vehicles 4 in a central unit 2. One of the motor vehicles 4 is shown in more detail in fig. 1. The motor vehicle 4 has a vehicle battery 41, an electric drive motor 42 and a vehicle control device 43, respectively. The vehicle control device 43 is connected to a communication module 44, which communication module 44 is adapted to transmitting data between the respective motor vehicle 4 and the central unit 2 (the so-called cloud).
The motor vehicle 4 transmits to the central unit 2 operating data F which at least describe variables which influence the load state of the vehicle battery 41. In the case of the vehicle battery 41, the operating data F may describe the instantaneous battery current, the instantaneous battery voltage, the instantaneous battery temperature, and the instantaneous state of charge (SOC: state of charge).
The central unit 2 has a data processing unit 21 and a database 22 for storing operating data of all motor vehicles 4, in which data processing unit 21 the following method can be carried out.
The updating software components are each implemented as software code in the vehicle control device 43 of the motor vehicle. These update software components are connected to the central unit 2 via a communication module 44.
Fig. 2 schematically shows a more detailed illustration of the data flow in one of the vehicles and the central unit. The software functions are executed in the vehicle control apparatus. The provision of data is described in more detail in connection with the flow chart of fig. 3.
In step S1, the running variables in the vehicle are continuously collected by the data detection function 51 in the vehicle control apparatus. In one embodiment, the operating variables characterizing the operation of the vehicle battery 41 may correspond. These variables may include, for example, battery voltage, battery temperature, battery current, and state of charge of the battery. These operating variables are continuously detected, thus making it possible to assess the use and the load of the vehicle battery over the service life.
These operating variables may be preprocessed in a preprocessing block 52 in step S2.
Furthermore, in step S3, the preprocessed operating variables may be aggregated and/or compressed in an aggregation and compression block 53 to reduce the amount of data to be transmitted to the central unit.
In a subsequent step S4, the compressed operating variables can now be encrypted in the encryption block 54 and the encrypted data can be transmitted in a step S5 by the communication module 44 to the data processing device 21 of the central unit 2.
The central processing unit 2 decrypts the operational variables in a decryption block 61 in step S6 and uses the decrypted operational variables to determine the corresponding adapted operational parameters and/or the new sub-function in an update block 62 in step S7.
The parameter determination in the central unit 2 can then, for example, provide that the operating parameters of the charging profile for charging the vehicle battery 41 are determined in accordance with the current load state of the vehicle battery 41, which results from the continuous detection of the operating variables.
A possible charging profile of the vehicle battery is shown in fig. 4 by way of example. The operating parameters of such a charging curve may specify, for example, the magnitude of the charging current in the state of charge segment. The charging curves illustrate different charging currents for different state of charge segments such as states of charge between 20% and 40%, states of charge between 40% and 60%, states of charge between 60% and 80%, and states of charge exceeding 80%. The charging curve decisively determines the charging behavior of the vehicle battery 41 and can be correspondingly parameterized in order to adapt the load present as a result of the charging of the vehicle battery 41 to the current load state of the vehicle battery 41.
This current load state strongly depends on the specific use of the vehicle and the driving behavior of the driver, which are reflected in the course of the change in the operating variables. Thus, different parameterizations of the charging curve are appropriate for different vehicles of the fleet 3. These parameterisations are determined by parameter determination in the central unit 2 for the operating parameters.
These operating parameters are then signed and/or encrypted in an encryption block 63 in step S8 and transmitted to the respective vehicle via the communication connection in step S9.
There, in step S10, the operating parameters or sub-functions are decrypted and verified, i.e. checked for consistency, in a decryption and verification unit 55.
The operating parameters are then processed in the corresponding charging function 56 and applied during the currently executed charging process by determining the corresponding charging current. In particular, the charging current can be determined during the charging process from a charging curve specified by the operating parameters on the basis of the actual state of the vehicle.
In order to implement the functions of the preprocessing block 52, the aggregation and compression block 53, the encryption block 54 and the decryption and verification unit 55, these functions are implemented in the update software component 5, which update software component 5 is provided as a software algorithm. The update software component 5 may be issued in advance and integrated in the vehicle control device 43. The updating software component 5 is integrated in the control device software and can generally be updated together with the control device. By transmitting the operating parameters and/or the sub-functions, function updates can be carried out individually for each vehicle control device 43 by means of the update software component 5.
Claims (9)
1. An updating component (5) for a vehicle control device (43) in a vehicle, wherein the updating component is implemented in the vehicle control device (43), in particular in the form of a software component, and is designed to
-receiving (S6) one or more operating parameters and/or one or more sub-functions outside the vehicle,
-modifying (S7, S8) a vehicle function in accordance with the one or more operating parameters and/or the one or more sub-functions.
2. The updating component (5) of claim 1, further configured to receive and decrypt (S6) the one or more operating parameters and/or the one or more sub-functions in encrypted form.
3. The updating component (5) according to claim 1 or 2, further configured to verify the one or more operating parameters and/or the one or more sub-functions.
4. The updating assembly (5) according to any of claims 1 to 3, further configured to detect, in particular pre-process, and/or aggregate and/or compress, the operating variables of the motor vehicle and to transmit them to the outside of the vehicle.
5. Method for providing vehicle-specific function updates in a vehicle control device (43) of a motor vehicle (4), wherein one or more operating parameters and/or one or more sub-functions are received outside the vehicle by means of an update assembly (5) according to any one of claims 1 to 4, and wherein a vehicle function is modified in accordance with the one or more operating parameters and/or the one or more sub-functions.
6. The method of claim 5, wherein the modified vehicle function is performed.
7. An updating system having a plurality of vehicle control devices (43) of motor vehicles (4) and a central unit (2) which is connected in a communicating manner to each vehicle control device (43), wherein a plurality of updating assemblies according to any one of claims 1 to 4 are provided for each vehicle control device (43), wherein the central unit (2) is designed to receive operating variables from each vehicle control device (43), to generate one or more operating parameters and/or one or more sub-functions for the vehicle control device (43) concerned from the operating variables and to transmit them to the vehicle control device concerned.
8. A computer program product comprising instructions which, when the program is executed by a computer, cause the computer to carry out the steps of the method according to any one of claims 5 to 6.
9. A machine-readable storage medium comprising instructions which, when executed by a computer, cause the computer to perform the steps of the method according to any one of claims 5 to 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021208018.9 | 2021-07-26 | ||
| DE102021208018.9A DE102021208018A1 (en) | 2021-07-26 | 2021-07-26 | Distributed method for updating functions in a large number of motor vehicles and updating device and updating system for motor vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115675320A true CN115675320A (en) | 2023-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210876368.9A Pending CN115675320A (en) | 2021-07-26 | 2022-07-25 | Distributed method for updating functions, and updating device and updating system for motor vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN115675320A (en) |
| DE (1) | DE102021208018A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009002898A1 (en) | 2009-05-07 | 2010-11-11 | Robert Bosch Gmbh | Method for actualizing controller of vehicle, involves providing comparative results based on comparison of two conditions, and accomplishing actualization of controller based on one of comparative results |
| US9285944B1 (en) | 2011-04-22 | 2016-03-15 | Angel A. Penilla | Methods and systems for defining custom vehicle user interface configurations and cloud services for managing applications for the user interface and learned setting functions |
| SE540856C2 (en) | 2015-06-17 | 2018-12-04 | Scania Cv Ab | System and Method for Remote-Controlled Installation of Software in Motor Vehicles |
| DE102018114791B3 (en) | 2018-06-20 | 2019-10-10 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Apparatus and method for updating software on a controller |
| DE102018213011A1 (en) | 2018-08-03 | 2020-02-06 | Bayerische Motoren Werke Aktiengesellschaft | Method, system, vehicle, and a computer program for executing a test procedure |
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2021
- 2021-07-26 DE DE102021208018.9A patent/DE102021208018A1/en active Pending
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- 2022-07-25 CN CN202210876368.9A patent/CN115675320A/en active Pending
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| DE102021208018A1 (en) | 2023-01-26 |
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