42 results about "Automotive software" patented technology

A system and methods are disclosed for providing integrated software development environment for the design, verification and validation of advanced automotive safety systems. The system allows automotive software to be developed on a host computer using a collection of computer programs running simultaneously as processes and synchronized by a central process. The software disclosed uses separate synchronized processes, permitting signals from disparate sources to be generated by a simulation running on the host computer or from actual sensors and data bus signals coming from and going to actual vehicle hardware which is connected to their bus counterparts in the host computer on a real-time basis. The methods disclosed are for providing an Algorithm Prototyping, Analysis and Test through an integrated framework for dynamic data modeling and application development.

The invention discloses a car software upgrading method, device and system. The method comprises the steps of obtaining required upgrading installation packages based on upgrading installation packages shared by target vehicles; and upgrading car function modules according to the obtained upgrading installation package. The device comprises a memory and a processor for performing the upgrading method of the car function modules. The system comprises a plurality of vehicular terminals and a cloud upgrading server in communication connection with the plurality of vehicular terminals. The upgrading installation packages are shared among the plurality of vehicular terminals. Through application of the method, the device and the system, the upgrading efficiency can be improved, and the upgrading time cost and traffic cost are reduced. The car software upgrading method, device and system provided by the invention can be widely applied to the technical field of vehicular upgrading.

The invention provides a vehicle ECU upgrading method and system, and the method is used for TBOX, and comprises the steps: obtaining an ECU upgrading package; determining a to-be-upgraded ECU corresponding to the ECU upgrade package; sending an upgrading instruction to the be-upgraded ECU so as to trigger the be-upgraded ECU to enter an upgrading mode; and under the condition that it is determined that the be-upgraded ECU enters the upgrading mode, sending the ECU upgrading package to the be-upgraded ECU entering the upgrading mode, wherein the ECU upgrading package is the foundation for upgrading the ECU to be upgraded entering the upgrading mode. The ECU upgrade package is obtained in time through the TBOX; after the ECU upgrade package is obtained, the ECU upgrade package is sent to the be-upgraded ECU in the vehicle in time, the vehicle-mounted ECU is upgraded in time, and therefore the requirement for rapid updating iteration of automobile software in the intelligent network connection era is met, and the upgrading efficiency of the vehicle ECU is improved.

The invention relates to a device for upgrading car software according to intelligent equipment. The device comprises a software package differential updating assembly, a server and a management assembly, the intelligent equipment, a car master control and vehicle-mounted equipment. The software package differential updating assembly utilizes a differential updating mode to generate an updating package for car equipment software and upload after integration and encryption. The server and the management assembly are used for receiving the updating package uploaded by the software package differential updating assembly and make integral management. The intelligent equipment is in communication with the server and the management assembly to download the updating package and send the updating package to the car master control. The car master control is used for receiving the updating package and decrypting, dismantling and updating through the communication between an equipment interface of the car master control and the intelligent equipment and also for communication and updating through a car information interface and the vehicle-mounted equipment. The vehicle-mounted equipment is used for updating and upgrading software corresponding to equipment by obtaining the updating package from the car master control. Compared with the prior art, the device for upgrading car software according to the intelligent equipment has the following advantages: cost is reduced; the device is convenient and easy; time is quick; the flow rate is small; and complete updating is achieved.

The invention discloses an automobile software adaption system, which comprises at least one requirement information module, wherein the at least one requirement information module is set into at least one adaption module; the requirement information module is arranged to provide adaption requirement information for setting the automobile software system; and the adaptation module can be adaptive to a function unit which is matched with adaptive requirement information provided by the requirement information module to the automobile software system.

The invention provides an automobile software refreshing control method and system, and an automobile software refreshing gateway. The control method comprises steps of S1, a gateway forwards a refreshing message sent by a refreshing device to a target electronic control unit; S2, when the target electronic control unit determines the refreshing message is the first frame, the gateway receives a flow control frame carrying the receivable minimal successive frame interval and the number of successive frames received at one time sent by the target electronic control unit; S3, when the gateway determines that the minimal successive frame interval received by the target electronic control unit is smaller than a set threshold, the minimal successive frame interval received by the target electronic control unit is modified into the set threshold and the modified minimal successive frame interval is forwarded to the refreshing device; and S4, the gateway receives successive frames sent by the refreshing device at the set threshold and forwards the successive frames to the target electronic control unit. The parameter of the flow control frame is modified by the gateway, and the bus load rate is reduced.

The embodiment of the invention discloses an automobile software unit automatic test method and device, equipment and a storage medium. The method comprises the following steps: obtaining a target test case document and a target software unit model corresponding to the target test case through an automobile software development platform, wherein the target test case document conforms to an ASPICEtest case specification; entering a test environment corresponding to the target software unit model; reading the test case content from the target test case document; generating a target state machine matched with the target software unit model according to the test case content, wherein the target state machine includes execution content and jump conditions; executing simulation operation of thetest environment according to the test case content; and determining a test result according to the simulation data. By the adoption of the technical scheme, automatic testing can be conducted on anautomobile software development platform, testing efficiency is improved, and meanwhile automobile software unit testing can be more standardized.

The embodiment of the invention discloses an automobile software model integration method, device and equipment and a storage medium. The method comprises the steps of acquiring a configuration file corresponding to at least two target software components through an automobile software development platform; analyzing the configuration file to obtain configuration information corresponding to the target software component; and integrating the target software component into a to-be-tested automobile software model according to the configuration information. By the adoption of the technical scheme, the configuration file of the software assembly needing to be integrated can be obtained through the automobile software development platform, integration is conducted according to the automatically analyzed configuration information, automatic integration of the automobile application layer software model is achieved, the integration efficiency is improved, and errors in the integration process are avoided.

The invention discloses an electric vehicle ECU software version detection method and system. The method is applied to an offline detector, and the offline detector comprises a code scanning gun, an industrial personal computer and an OBD plug. The method comprises the steps that the code scanning gun identifies a VIN number of a vehicle and sends the identified VIN number to the industrial personal computer; the industrial personal computer obtains an ECU software version number configuration table corresponding to the VIN number from a pre-stored database according to the VIN number; when the industrial personal computer receives a diagnosis instruction, the ECU software version number of the vehicle is read through the OBD plug; the industrial personal computer judges whether the read ECU software version number of the vehicle is consistent with the ECU software version number configuration table obtained from a database or not; and if the read ECU software version number of the vehicle is consistent with the ECU software version number configuration table obtained from the database, the industrial personal computer judges that the ECU software version detection of the vehicle is qualified. According to the invention, the problems of high detection cost and influence on vehicle stability and safety in the prior art can be solved.

A system and methods are disclosed for providing integrated software development environment for the design, verification and validation of advanced automotive safety systems. The system allows automotive software to be developed on a host computer using a collection of computer programs running simultaneously as processes and synchronized by a central process. The software disclosed uses separate synchronized processes, permitting signals from disparate sources to be generated by a simulation running on the host computer or from actual sensors and data bus signals coming from and going to actual vehicle hardware which is connected to their bus counterparts in the host computer on a real-time basis. The methods provide a data model that first extends the capabilities of the physical data model and then translates, gates, optimizes, fuses, filters and manages the physical representation of the logical model into a state estimation of the situation around the vehicle.

A software static testing apparatus generates code by integrating a plurality of source files corresponding to automotive software, creates logical expressions for the code and a test case, and performs testing of the plurality of source files using a resulting logical expression obtained by using the logical expression for the code and the logical expression for the test case.

The invention provides a software management system for a vehicle, which comprises a management platform and at least a link controller, wherein the link controller is installed on a vehicle for managing an internal communication link and an external communication interface; when the software corresponding to an electrical component needs to be operated, the management platform supplies an authorization code for the link controller installed on the vehicle; and after the link controller verifies the authorization code, the link controller establishes a communication link through the internal communication link and external communication interface connected with the electrical component as well as the management platform, so that the management platform operates the software corresponding to the electrical component through the communication link.

The invention provides an off-line upgrading method of automobile software, a server, an automobile machine and a computer readable medium. The off-line upgrading method for the automobile software comprises the following steps: receiving an upgrading file uploaded by a user; receiving an upgrading strategy configured by a user; forming an upgrade package containing upgrade configuration information based on the upgrade file and the upgrade strategy, wherein the upgrade configuration information comprises software information and/or hardware information of the to-be-upgraded electronic control unit and is used for being matched with the to-be-upgraded electronic control unit; and storing the upgrade package to a computer readable storage medium or a mobile intelligent terminal, wherein the computer readable storage medium or the mobile intelligent terminal is used for transmitting the upgrade package to the vehicle machine. According to the method, the offline upgrade package containing the upgrade file, the upgrade strategy and the upgrade configuration information is made in the background, so that an operator can perform offline upgrade on the automobile software under the condition that the automobile machine cannot be connected with the upgrade server.

The invention relates to a finished vehicle OTA upgrading method and device, electronic equipment, a medium and a signature method. The finished vehicle OTA upgrading method comprises the following steps: acquiring a signed finished vehicle upgrade package; performing primary verification on the signed finished vehicle upgrade package; unpacking the signed finished vehicle upgrade package passing the primary verification to obtain a signed ECU software upgrade package; performing secondary verification on the signed ECU software upgrade package; and after the secondary verification is passed, upgrading software. According to the method, the safety of the ECU and the finished vehicle software upgrade package in the transmission process can be effectively ensured through two different verifications; the safety and the legality of the whole life cycle of the ECU software upgrade package from a release stage to an installation stage are ensured emphatically; the information security level of automobile OTA software upgrading can be improved to a great extent, the intelligent networked automobile can be prevented from being attacked and controlled by hackers in the software upgrading process to a great extent, and the security risk of the intelligent networked automobile is reduced.

The invention belongs to the field of software engineering and designs an automobile software source code simulation test system aiming to solve the problems existing in a source code test related to a controllable physical working process in an automobile software system, according to features of a UPPAAL model. The input of the system is a triple queue composed of a data variable set, an event variable set and a clock constrained set, and the output of the system is the data variable set. In order to achieve automaticity and real-time property of the source code simulation test system, the UPPAAL model is converted into a C++code. All input data are processed by a software source code and the UPPAAL model after code conversion, and if output results are consistent, a source code can be judged to be correct, otherwise, mistakes are judged to exist. By the aid of an automobile software source code simulation test method based on the UPPAAL model, the source code related to the controllable physical working process in an automobile software can be tested, and accordingly safety of the system is guaranteed, software development cost can be lowered, software development speed is accelerated, and quality of softwares is improved.

The invention relates to the technical field of automobile control, in pieceicular to an automobile software upgrading system and method. The automobile software upgrading system provided by the invention comprises a mobile client which is used for receiving and displaying upgrading information of a background server, receiving a user upgrading instruction and sending the user upgrading instruction to the background server and/or a vehicle-mounted intelligent terminal; the background server is used for sending upgrading information to the mobile client and executing corresponding actions on the mobile client or the vehicle-mounted intelligent terminal according to a user upgrading instruction; and the vehicle-mounted intelligent terminal judges whether to download the software upgrade package or not according to the user upgrade instruction and upgrades the electronic control unit of the vehicle. According to the method and the device, the user can obtain the vehicle software upgrading information anytime and anywhere, vehicle software upgrading is carried out under the condition of not using the vehicle or not entering the vehicle, so that the influence of the vehicle upgrading process on the travel convenience of the user is avoided, and the risk of software upgrading failure caused by manual misoperation of the vehicle in the upgrading process is also avoided.

The invention discloses an automobile software online upgrading system and method based on a QUIC protocol, and relates to the technical field of vehicle networks. After the OTA cloud detects that the automobile software needs to be updated, the OTA cloud pushes a manufactured differential packet to a CDN (Content Delivery Network) server; the QUIC proxy server subscribes to the CDN server, the CDN server synchronously pushes the differential packet to the QUIC proxy server subscribing to the CDN server after receiving the differential packet, and the QUIC proxy server synchronizes the differential packet pushed by the CDN server; after the client side receives the software updating notification, whether the current network environment is a weak network or not is judged, if the current network environment is the weak network, the client side can establish QUIC connection with the QUIC proxy server, and the QUIC proxy server can send the differential packet to the client side through the QUIC protocol for software upgrading, so that the OTA online upgrading efficiency can be improved in the weak network environment.

The invention discloses an automobile ECU software compression upgrading system and method, electronic equipment and a storage medium, and the method comprises the steps: S1, compressing an executable program in an ECU software upgrading package; s2, deploying the ECU software upgrade package to an upper computer node for flashing the ECU, and analyzing the ECU software upgrade package by the upper computer node to obtain a compressed package of an executable program; s3, transmitting the compressed package of the executable program to the ECU in a blocking manner, and storing the compressed package in a buffer area; s4, the ECU decompresses the block compressed packets in the buffer area, writes the decompressed data into the ECU, and empties the buffer area after writing is completed; and S5, repeating the steps S3-S4 until the flashing of the executable program is completed. According to the method, the flashing efficiency in the ECU software upgrading process is effectively improved, and the whole vehicle OTA upgrading time or the UDS diagnosis flashing time is saved.

The invention provides a file conversion method and device and electronic equipment, and relates to the technical field of automobile tests.The file conversion method comprises the steps that in a first software environment, a header file of a to-be-tested file applied by a vehicle control system is converted into a first file; wherein the data type of the first file is the type identified by the first software environment; converting the first file through a first module in the first software environment to generate a target header file; obtaining a target file name according to a file name of a preset file in the to-be-tested file; and in a target module of the first module, according to the target header file and the target file name, generating a target test file. According to the scheme, when the automobile software function is tested, the workload of manual test file conversion can be greatly reduced, and the test efficiency of the automobile control system is improved.

The invention discloses a whole vehicle ECU software wireless upgrading method which is characterized by comprising the following three steps: S10, a version information synchronization module collects version information of each ECU software of a local vehicle and uploads the version information to a background in a wireless mode, and it is ensured that the version information of each ECU software stored in the background is the latest information; s20, the task downloading module actively queries whether the background has available upgrading tasks or not, requests downloading when the upgrading tasks exist, downloads ECU software versions needing to be upgraded from the background in a wireless mode, and waits for authorized installation; and S30, a guiding upgrading module is used for guiding upgrading processes of a plurality of ECUs of a local automobile, flashing the latest ECU software version downloaded from the background into a target ECU, and upgrading the ECU. According to the invention, wireless upgrading of the automobile ECU software is achieved, and an interactive interface among an automobile factory, an automobile owner and an ECU unit supplier in upgrading is more friendly.

The invention provides a product optimization management system and method, and relates to the field of automobile software. The product optimization management system comprises: a plurality of data servers which are respectively used for acquiring target data of different stages of a full life cycle of a vehicle, wherein the target data refer to optimization related data of products related to the different stages of the full life cycle of the vehicle; a first processing server, which is connected with the plurality of data servers and is used for determining a product optimization requirement based on the target data; and a product optimization server, which is connected with the first processing server and is used for a research and development end to research and develop an optimized product according to the product optimization requirement. The user demand information is acquired from multiple aspects of the whole life cycle of the vehicle, so that research and development personnel can develop and optimize products according to more comprehensive user demand information, and the developed new products can better meet the demands of users.

The invention relates to the technical field of automobile software, in particular to a method and a system for managing and controlling software versions of all controllers of an automobile. The method for managing and controlling the software versions of all the controllers of the automobile comprises the steps of: enabling an automobile gateway to obtain software and hardware version data of different controllers through a local area network in the automobile, wherein the gateway has an internet communication function; combining the software and hardware version data according to a preset mode and then converting the combined data into numerical values in a specific format; uploading the numerical value in the specific format to a target platform; and enabling the target platform to analyze the numerical value in the specific format and judge whether the newly-replaced part meets the requirements of the corresponding vehicle type or not. Through the steps, software and hardware version monitoring of the automobile parts can be enhanced so as to provide better OTA service and part safety guarantee, software and hardware version data of different controllers can be obtained through the local area network in the automobile, and software and hardware version numbers of the automobile parts can be obtained more quickly, safely and completely.