537 results about "Domain controller" patented technology

The invention discloses an OTA parallel downloading method and system based on a domain controller, and the method comprises the steps: an OTA cloud platform judges whether a vehicle has an upgradable task or not according to the information reported by the vehicle; if the upgradable task exists, the OTA cloud platform feeds back upgrading task information to the OTA upgrading controller; the OTA upgrading controller informs each domain controller of upgrading task information; and after each domain controller obtains the upgrade file downloading link, synchronously downloading the upgrade package file of the lower hanging node corresponding to each domain controller in parallel. According to the OTA parallel downloading method and system based on the domain controller and the domain controller, the upgrade package of the node ECU hung below the domain controller can be directly downloaded from the OTA cloud platform, so that the number of times of transmission of the upgrade package at a vehicle end is reduced, the overall time of downloading and distributing an upgrade package file is shortened, meanwhile, the probability of occurrence of a data transmission problem is reduced, and the reliability of an OTA system is improved.

The invention provides an MCU function security implementation system based on a domain controller, and relates to the technical field of domain controllers, the system realizes dual backup storage and on-site execution of program codes by combining a security MCU without a built-in program memory with at least two redundant plug-in nonvolatile storage units, and the security of the MCU is improved. Consistency verification is carried out on key codes or data in the running process, and system failure caused by single-point storage faults or data tampering is effectively prevented; meanwhile, read-write operation without losing data during power failure is isolated through the independent data storage unit, and resource conflict and interference between program execution and data storage are avoided; the ASIL D-level power management unit supporting two-way fault monitoring is matched, resetting can be triggered in time or the MCU enters a safe state when a power supply is abnormal or an MCU internal fault occurs, and therefore a high-reliability and high-safety domain controller MCU system is constructed on the hardware architecture level, and the capacity of the MCU for meeting the ASIL D function safety level in a plug-in storage scene is improved.

The invention relates to a safety certification method and device of vehicle-mounted equipment, electronic equipment and a storage medium, and the safety certification method of the vehicle-mounted equipment is applied to a vehicle-mounted domain controller integrated with an HSM. The SOC generates a security service request containing to-be-processed data and an operation instruction according to the digital certificate and the identity authentication operation, and sends the security service request to the MCU; and the MCU receives and analyzes the security service request to obtain to-be-processed data and an operation instruction, and calls the HSM, and the HSM executes identity authentication type cryptographic operation on the to-be-processed data according to the private key and the operation instruction, and returns an operation result to the SOC. The HSM integrated in the vehicle-mounted domain controller realizes a security authentication function without externally hanging a special security chip, and the private key is always stored in the HSM and is not exported, so that the security of the vehicle identity key is ensured.

The invention discloses a vehicle power distribution method, device and equipment based on a centralized domain controller, and a storage medium. The method comprises the following steps: collecting multi-source vehicle power distribution associated data through a centralized domain controller; wherein the centralized domain controller is a vehicle part integrating a whole vehicle control unit, an intelligent power distribution unit, a communication gateway unit and a redundant power supply module into a single shell; performing fusion processing on the multi-source vehicle power distribution associated data to obtain target fusion data; generating a vehicle power distribution control instruction based on a pre-constructed load power supply priority rule, a preset software configuration rule and the target fusion data; and on-off states of a large-current power distribution module and a small-current intelligent power distribution module of the intelligent power distribution unit are controlled based on the vehicle power distribution control instruction so as to realize power supply of each load. The technical effects of improving the integration level and the control precision of the power distribution system and guaranteeing the power supply stability are achieved.

The invention relates to a multi-vehicle automatic driving simulation system and method supporting DORA middleware, and belongs to the technical field of automatic driving. The system comprises a simulation platform and a domain controller group. The simulation platform comprises a multi-vehicle Dora-bridge, traffic scene simulation software and vehicle dynamics simulation software, the multi-vehicle Dora-bridge receives multi-vehicle state data, sensor data and vehicle cooperative control information generated by the traffic scene simulation software, and the multi-vehicle Dora-bridge publishes the multi-vehicle state data, the sensor data and the vehicle cooperative control information in the form of a DORA topic for each domain controller to subscribe; meanwhile, control instructions issued by the domain controllers in the form of DORA topics are received and issued to the vehicle dynamics simulation software. The domain controller group comprises a plurality of domain controllers, each domain controller corresponds to one automatic driving vehicle, and software of the domain controller group consists of a plurality of DORA function nodes to realize an automatic driving function. According to the invention, an effective solution is provided for simulation of the multi-vehicle automatic driving system based on the DORA middleware, the development efficiency is improved, and the development cost is reduced.

The invention discloses a key acquisition method, device and system, a vehicle, a computer storage medium and a program product. The method is applied to a cockpit domain controller of a vehicle, and comprises the following steps: receiving a first input for a vehicle operation mode, and generating a request parameter of a target service interface based on a mapping relationship between the first input and the service interface; sending the request parameter of the target service interface to the vehicle-mounted communication terminal, so that the vehicle-mounted communication terminal generates a request parameter of a target connection mode based on the request parameter of the target service interface and executes a key acquisition operation; and receiving a key acquisition execution state returned by the vehicle-mounted communication terminal. The flexibility and reliability of the key acquisition process can be improved.

The invention discloses a domain controller automatic test scheduling method and system based on a hierarchical software architecture, and relates to the technical field of automatic test and industrial control, and the method comprises the steps: S1, constructing an automatic test system of the hierarchical software architecture which at least comprises a hardware drive abstraction layer and a test application layer, the hardware drive abstraction layer is used for uniformly packaging bottom layer drives of a board card, a signal conditioning module, a relay matrix and a power supply module in the test system, and providing a standardized interface irrelevant to specific hardware for the test application layer; according to the domain controller automatic test scheduling method and system based on the hierarchical software architecture, the comprehensive requirements of a new energy automobile power domain controller on high-efficiency, high-reliability and high-consistency automatic test in research, development, verification and mass production stages are better met.

Disclosed in the present application are a head unit resource dynamic allocation method based on application weight values, and a vehicle and a medium. The method comprises the following steps: classifying applications in a domain controller (S1); assigning different dynamic weight values to each application in the domain controller (S2), wherein the dynamic weight values specifically comprise a category weight value, a response weight value and a scenario weight value; and on the basis of the dynamic weight values of each application and a target threshold value, dynamically allocating hardware resources of the domain controller (S3).

This invention belongs to the field of vehicle network information technology, specifically relating to a method for self-identification of modularly reconfigurable vehicle configurations. It solves the problems of cumbersome manual vehicle configuration operations and low scalability in existing methods. Based on a multi-bus network topology, this invention integrates the attribute information of domain controllers on each independent module into the vehicle controller. This includes attribute identification of each module's information, integration of attribute information configuration tables, and distribution of attribute information configuration tables. This achieves interconnectivity of the entire vehicle's information architecture and plug-and-play functionality under module changes. The self-identification algorithm for vehicle configuration in this invention achieves rapid and accurate configuration of modularly reconfigurable vehicles through automation and intelligence, improving vehicle adaptability and flexibility, and providing strong technical support for future intelligent transportation systems.

The invention provides a domain controller test case intelligent generation method and system based on a knowledge graph, belongs to the technical field of automobile electronic testing, and is used for solving the problems of insufficient coverage rate, low efficiency and difficulty in knowledge inheritance of domain controller testing in related technologies. According to the method, a test knowledge graph fusing a functional architecture, historical data and expert experience is constructed, vector representation of nodes and relationships is learned by using a graph neural network, an optimized test path is generated through intelligent reasoning, then an extended test case is generated through a multi-dimensional generalization technology, and finally continuous optimization is performed through closed-loop quality evaluation. The test coverage rate and the design efficiency can be remarkably improved, and systematic precipitation and reuse of test knowledge are achieved.

This invention relates to the field of vehicular network testing technology, and discloses a domain controller network testing system, method, and apparatus. The system includes multiple vehicular Ethernet converters, Ethernet switches, and bus controllers. Each vehicular Ethernet converter is connected to a domain controller under test, and each vehicular Ethernet converter is also connected to the Ethernet switch. Each domain controller under test is also connected to the bus controller. The Ethernet switch and the bus controller are both connected to a host computer. The host computer is configured to: receive on / off configurations for the channels between the Ethernet switch and at least one of the domain controllers; receive test requests and send test signals to the bus controller; and acquire messages transmitted and received at a specified bus listening port or mirror port to obtain test results. This invention enables arbitrary channel configuration between domain controllers, meeting various testing requirements.

The application discloses a domain controller function test method and device based on CANoe, and the method comprises the following steps: according to a preset function test strategy, a low-voltage programmable power supply outputs corresponding target test voltage to the domain controller and the CANoe device to supply power to the domain controller and the CANoe device through the target test voltage, and the preset function test strategy is used to adjust the voltage value of the target test voltage; after the low-voltage programmable power supply provides the target test voltage to the domain controller and the CANoe device, the communication message interaction result between the domain controller and the CANoe device is determined; and according to the communication message interaction result, the function test result corresponding to the domain controller is determined. It can be seen that the embodiment of the application can improve the function test accuracy of the domain controller, and can improve the determination accuracy of the real-time function running state of the domain controller, thereby improving the determination efficiency and accuracy of determining whether the domain controller normally runs the corresponding function.

The application discloses a kind of hardware-in-the-loop test of automatic driving domain controller, comprising: real-time processor and graphics workstation;Graphics workstation is used to generate simulation traffic scene information, simulation sensor information is generated based on simulation traffic scene information, first simulation sensor information in simulation traffic scene information and simulation sensor information, simulation traffic scene information and simulation sensor information are transmitted to automatic driving domain controller, second simulation sensor information in simulation sensor information is transmitted to real-time processor;Real-time processor is used to transmit second simulation sensor information to automatic driving domain controller, receives the vehicle control information that automatic driving domain controller feedback.This application provides the hardware-in-the-loop test system, device, storage medium of automatic driving domain controller, can avoid the problem that scene information and sensor perception information do not match when hardware-in-the-loop test, improves the accuracy of test.

The application provides a domain controller forming production line, which comprises a domain controller detection device and a domain controller assembling device, wherein the domain controller detection device comprises a domain controller feeding device, a carrying device, a vibration detection device, an air tightness detection device and an AOI detection device; the domain controller is fed by the domain controller feeding device, carried to the vibration detection device by the carrying device, and subjected to vibration detection by the vibration detection device; the carrying device carries the domain controller after the vibration detection to the air tightness detection device, and the air tightness detection device is used for air tightness detection of the domain controller; the domain controller after the air tightness detection is transferred to the AOI detection device, and the AOI detection device is used for AOI detection of the domain controller. The application can automatically assemble and detect the domain controller, and improve the production efficiency and assembling precision.

The invention discloses a delay electric control system based on a multi-domain controller of a new energy commercial vehicle and a rapid diagnosis method of the delay electric control system in the field of new energy commercial vehicles, and aims to solve the technical problems that an existing relay is poor in control reliability and difficult in troubleshooting. The method comprises the steps that an ignition lock and a charging gun are used for providing starting or charging signals; a first high-side driving circuit is arranged in the vehicle body domain controller, and the vehicle body domain controller is used for outputting delay power; a second high-side driving circuit is arranged in the chassis domain controller, and the chassis domain controller is used for outputting delay power; the wake-up power supply end of the vehicle control unit is connected with the power supply output end of the vehicle body domain controller or the chassis domain controller; the power supply ends of the gateway and the vehicle-mounted remote information terminal are respectively connected with the output end of the first high-side driving circuit; and the power supply ends of the motor controller and the battery management system are respectively connected with the output end of the second high-side driving circuit. According to the invention, the reliability and the intelligent level of delay electric control can be improved, and rapid fault diagnosis is realized.

The invention relates to the technical field of vehicle control, and discloses a vehicle control method, a vehicle domain controller, a vehicle and a storage medium. The vehicle domain controller comprises an MCU, a first SOC, a second SOC and a switching chip, and the method comprises the steps that the MCU is started in response to a power-on signal for the vehicle domain controller; carrying out power-on and initialization configuration on the switching chip, and determining a target SOC which needs to be started at present; the target SOC comprises at least one of the first SOC and the second SOC; and controlling the target SOC to be powered on, and indicating the target SOC to establish a data channel after being powered on. The first SOC, the second SOC and the switching chip are controlled in a unified mode through the unique MCU, the integration level of a hardware system can be improved, cost reduction is achieved, the MCU does not need to transfer or switch the control right, and the complexity of a control strategy can be reduced.

The invention relates to an uphill auxiliary control method. The method comprises the steps that it is determined that a vehicle is in an uphill scene; determining that the vehicle enters a'deceleration stop 'stage according to a sensor signal; and when the vehicle is in the uphill scene and enters a'deceleration stop 'stage, target longitudinal acceleration is controlled, so that the target longitudinal acceleration is decreased along with time, and the initial value of the target longitudinal acceleration is set to be smaller than a preset acceleration threshold value, so that the vehicle cannot slip backwards in the uphill scene. The application also relates to a computer program product and a domain controller.

This invention discloses a gateway domain control system for vehicles, comprising: coordinating and controlling a data storage module, power management module, system monitoring module, data communication module, time synchronization module, temperature detection module, digital input / output module, system safety module, actuator drive module, and ADC acquisition module in a vehicle gateway domain controller based on a SOC module, thereby realizing the control of the vehicle gateway domain; through the close cooperation of each module, the stability, security, flexibility, and intelligence level of the vehicle gateway domain control are improved, adapting to the complex and diverse application needs of modern vehicles.

The application discloses a control system and method of an electric vehicle charging drive control system, a storage medium and an electronic device, and relates to the technical field of electric vehicle control systems. The system comprises a domain controller, wherein the domain controller is integrated with at least: a whole vehicle control core for executing whole vehicle control logic; a charging control core for executing charging control logic; and a drive control core for executing motor drive control logic; and the whole vehicle control core, the charging control core and the drive control core are connected through inter-core communication. According to the application, the control logic of a PDM is integrated into the domain control, and the control method under the multi-core architecture is combined, so that the connection circuit is simplified, high integration, high real-time performance and high safety are realized, and the cost is reduced.

The embodiment of the invention discloses a vehicle parking method, a parking control system and a domain controller, the method comprises the steps that the domain controller of a vehicle detects whether the distance between the vehicle and a parking point is smaller than a preset first distance or not, if yes, a pull-in mode enable signal is generated and sent to a chassis control unit, and if not, the chassis control unit controls the vehicle to stop; and the domain controller responds to a reflector signal output when the photoelectric sensor detects the positioning reflector installed at the parking point, generates the jump trigger signal and sends the jump trigger signal to the chassis control unit, so that the chassis control unit controls the vehicle to perform emergency braking and completes parking. According to the method, sensor signals are directly processed through the chassis bottom layer, calculation time consumption and communication delay of an upper-layer system are eliminated, and the effect of accurate parking is achieved. Moreover, when the distance between the vehicle and the parking point is smaller than the preset first distance, the chassis control unit is activated to receive the jump triggering signal, false triggering caused by other reflective objects is effectively avoided, and the system safety is improved.

The domain controller comprises a shell with a first containing cavity, an opening is formed in the edge of the shell, and a water guide groove is formed in the outer wall of the shell with the opening; the circuit board is provided with an onboard antenna area, a part of the circuit board is arranged in the first accommodating cavity, and the onboard antenna area is exposed from the opening and is close to the water chute; the antenna cover is detachably arranged on the shell, the antenna cover can cover the opening, a second containing cavity is formed by the antenna cover and the shell, the onboard antenna area and the water guide groove are contained in the second containing cavity, and a groove opening of the water guide groove is communicated with the outside. When liquid drops on the surface of the shell of the domain controller and the movable platform or the surface of the antenna cover, the liquid permeating into the second accommodating cavity does not directly drop on the PCBA board, but flows into the water chute and is finally discharged out of the second accommodating cavity through the notch, so that the PCBA board and the antenna chip are prevented from being damaged. The domain controller can meet the waterproof requirement of the IP5K2 level.

The embodiment of the invention discloses a computing power resource configuration method and device which can be applied to the field of automatic driving and can be applied to intelligent automobiles, automatic driving automobiles, connected automobiles and the like, and the method comprises the steps that any domain controller (DCU) of a vehicle receives computing power configuration data corresponding to the DCU and sent by a cloud server or an upper computer, the computing power configuration data comprises the preset configuration number of various types of processors (including processor cores) in the DCU, the DCU resets a target processor in the DCU according to the computing power configuration data, and under the condition that the perception information collected by the vehicle belongs to the processing category of the DCU, the perception information is processed based on the reset target processor. The computing power configuration data supports updating of near-end upgrade (UDS) or far-end upgrade (OTA), the computing power configuration data can be updated according to needs so as to adjust computing power resources in the DCU, the computing power resources are saved on the premise of guaranteeing smooth operation of services, and the situation that the corresponding computing power configuration data can only be solidified in eFuse and cannot be modified when the DCU leaves a factory is avoided.

A first domain controller (9) is capable of performing data communication with a server (4) that learns statistical quantities including data obtained while a vehicle is traveling and calculates feature quantities necessary for predicting energy consumption of the vehicle. The first domain controller (9) includes: a link information acquisition unit (12a) that acquires link information indicating links included in map information; a statistical quantity calculation unit (12b) that calculates statistical quantities for each link indicated by the link information; a statistical quantity transmission unit (12c) that causes the statistical quantities to be transmitted to the server; a feature quantity acquisition unit (12d) that acquires feature quantities from the server; and an energy consumption prediction unit (12g) that predicts energy consumption of the vehicle on the basis of the feature quantities.

The utility model relates to the technical field of automobile parts, in particular to an automobile thermal management domain controller. Comprising a controller base body, L-shaped supporting plates are connected to the two sides of the bottom of the controller base body, adjusting parts are installed at the two ends of the tops of the L-shaped supporting plates, the tops of the four adjusting parts are jointly connected with a heat dissipation frame, and a plurality of heat dissipation fans are installed at the top of the heat dissipation frame in a penetrating mode; a plurality of first female plugs and second female plugs are embedded in the two ends of the controller base body respectively, first male plugs and second male plugs are inserted into the first female plugs and the second female plugs respectively, the two ends of the controller base body are connected with shielding parts respectively, and the ends, away from the controller base body, of the first male plugs and the second male plugs are connected with data lines. According to the automobile thermal management domain controller, the plug of the data line can be limited through the shielding part, so that the plug is not easy to separate from the controller after being plugged, and the stability of data transmission is improved.

An embodiment of this application provides a method for controlling the warning function of an ultrasonic radar system (10), the method comprising: under the steering condition of a vehicle (1), obtaining a first steering curvature K1 of the vehicle (1) using a low-speed steering model, and obtaining a second steering curvature K2 of the vehicle (1) using a high-speed steering model; determining a fused steering curvature K of the vehicle (1) under the steering condition based at least on the first steering curvature K1, the second steering curvature K2, and the vehicle's driving speed V. e At least based on the fusion steering curvature K e The warning distance thresholds for each warning zone of the ultrasonic radar system (10) are adjusted separately. According to this application, false positive and / or false negative warning messages about targets that are prone to occur during vehicle turning can be effectively eliminated in a low-tech manner, thereby improving the user acceptance and user experience of the ultrasonic radar system.

This invention relates to the field of automotive autonomous driving control technology, specifically to a software architecture, chassis domain controller, and chassis domain system for autonomous driving. The information layer acquires vehicle fault commands and emergency stop commands. The motion coordination layer triggers vehicle fault modes and emergency stop modes, and acquires emergency stop control signals and longitudinal and lateral vertical control signals. The dynamics control layer acquires dynamics control target quantities based on the emergency stop control signals or longitudinal and lateral vertical control signals; the fault-tolerant control layer performs fault-tolerant control based on vehicle fault information. The actuator control layer converts the dynamics control target quantities and fault-tolerant control target quantities into actual control signals to control the actuators. This software architecture, designed from a centralized perspective, achieves decoupled development of software and hardware, centrally processes all information, and uniformly integrates and schedules functions. It comprehensively considers vehicle, driver, fault, and cross-domain interaction, improving vehicle control accuracy and operational safety.

The embodiment of the invention relates to the technical field of vehicles, and discloses a fault processing method, system and equipment, and the method comprises the steps: determining a first data identifier in a first mapping relation according to a first fault code reported by a first controller hung below a domain controller; the first data identifier is issued to the first controller, so that the first controller determines first parameter information in the parameter information before and after the current fault based on the first data identifier; and generating a current fault message according to the first data identifier, the first parameter information and a first identifier corresponding to the first controller. By applying the technical scheme of the invention, the pertinence and analysis efficiency of fault data recording can be improved, and a solid data foundation is laid for subsequent rapid fault positioning and root cause analysis.

The embodiment of the application discloses a traffic statistics method and device, a mobile terminal and a storage medium. The method is applied to a mobile terminal, the mobile terminal comprises at least one domain controller, and the method comprises the following steps: determining the traffic consumed by each online service in at least one online service executed by a target domain controller in a preset time length on a corresponding online channel, the target domain controller being any one of the at least one domain controller; and according to the traffic consumed by each online service on the corresponding online channel, obtaining the total traffic consumed by the target domain controller on the online channel. The embodiment of the application realizes domain controller level traffic statistics, can accurately count the total traffic consumed by each domain controller on the respective online channel, realizes fine management and statistics of the online traffic of each domain controller, and effectively avoids the problem that the traffic consumption details are unclear.

The invention relates to the technical field of vehicles, in particular to a vehicle control system and a vehicle. The control system comprises an image acquisition module, a vehicle-mounted computing platform and a central domain controller, based on the control system, a body image of a vehicle target object is acquired, based on a built-in image processing module, the body image is recognized, and the height and the leg length of the target object are obtained; after a mapping relation model of the height, the leg length and the pedal height is called to determine the pedal height corresponding to the height and the leg length, a pedal control instruction is generated based on the pedal height and sent to a driving mechanism of a target pedal. According to the method and the device, the target pedal is automatically adjusted and unfolded to the matched height, so that personalized adaptation to passengers is realized.

An electronic personalization device and method for personalization of a vehicle that has a cockpit domain controller configured to identify a user of the vehicle, connect to an item of user equipment and collect social network data of the user. The method carried out by the device includes: a step for the cockpit domain controller to acquire social network data associated with a respective user; a step for building a model of a user profile, known as a user model, from the social network data associated with the user; and a step for transmitting the user model to at least one item of on-board electronic equipment in the vehicle, so that the on-board electronic equipment can perform an action dependent on the user model.