1493 results about "Domain controller" patented technology

The invention provides an adaptive path selection system based on GNN and multi-agent DRL, which is based on a layered multi-domain SDN architecture and comprises a root server layer, a domain controller layer and a data layer. The root server layer comprises a root server and a root agent, and the root agent is used for calculating a global routing path strategy and optimizing and adjusting a routing path according to feedback of a local network domain. And the root server distributes the routing path to a domain controller layer according to a routing path strategy to carry out routing path forwarding and adjustment of a local network domain. The domain controller layer comprises a plurality of domain controllers and domain intelligent agents, the domain controllers construct a topological structure composed of boundary switches, and a routing decision is made in a local domain according to an optimal global routing path strategy. And the domain intelligent agent performs modeling analysis on the topological structure by using a deep reinforcement learning algorithm in combination with a graph neural network to realize intra-domain path selection. And the data plane layer feeds back the network topology information to the domain controller, and receives and executes a routing decision sent by the domain controller at the same time.

The invention discloses a power domain controller system, which relates to the technical field of vehicle design and research and development and comprises a domain control board, a power module and a high-voltage power distribution part, the domain control board comprises a vehicle control unit, a heat management controller, a battery management system, a gear shifting controller and a power distribution control unit, wherein the heat management controller, the battery management system, the gear shifting controller and the power distribution control unit are electrically connected with the vehicle control unit. The heat management controller is electrically connected with the power distribution control unit. The power module comprises a slow charging motor, a DCDC converter and a relay, the slow charging motor is electrically connected with the battery management system, and the DCDC converter is electrically connected with the gear shifting controller; and the high-voltage power distribution part comprises a copper bar, a relay and a fuse. Through multi-module integration, the number of physical controllers and wiring harness complexity are reduced, the system development and maintenance cost is remarkably reduced, and meanwhile platform expansion is facilitated.

The invention relates to the technical field of automobile testing, and discloses a finished automobile testing method, device and system and a storage medium, the method is applied to an external domain controller establishing communication connection with a tested automobile, and the method comprises the steps of obtaining automobile control information, the vehicle control information is generated based on a preset test path and positioning information of the test vehicle, and the preset test path is used for specifying a driving route of the vehicle in a test site; controlling the test vehicle to run according to the vehicle control information; and in the vehicle driving process, aiming at the tested vehicle, collecting performance data representing the test condition. According to the technical scheme provided by the invention, the whole vehicle testing efficiency can be improved.

The invention relates to the technical field of vehicle Internet of Things, and discloses a vehicle control method and device based on Internet of Things equipment, a vehicle and a storage medium, and the method comprises the steps: obtaining equipment configuration information of the Internet of Things equipment through a network connection domain controller, generating a plurality of standard service interfaces, generating an equipment registration request, and transmitting the equipment registration request to a cloud end; and the cloud end obtains the vehicle control authority according to the equipment configuration information and sends the vehicle control authority to the network connection domain controller. Then, the network connection domain controller performs permission configuration on the plurality of standard service interfaces based on the vehicle control permission to obtain a target service interface conforming to the vehicle control permission, so that the Internet of Things equipment can send a target control instruction consistent with the permission range of the target service interface through the target service interface; the network connection domain controller reasonably controls the vehicle according to the target control instruction, so that the vehicle is prevented from mistakenly executing an unauthorized instruction of the equipment, the driving safety of the vehicle is effectively ensured, authority control can be performed on data transmission between the vehicle and the Internet of Things equipment, and the data safety is ensured.

The invention relates to the technical field of vehicle control, and provides a redundancy control method and system for an anti-lock braking system under an EMB system and a vehicle. The redundancy control method comprises the steps that in response to a clamping force request transmitted by a central domain controller, motor control is conducted; the method comprises the following steps: in response to a central domain controller fault signal, judging a vehicle braking working condition, determining an initial clamping force request according to the vehicle braking working condition, triggering braking, adjusting the clamping force request according to a vehicle state, calculating a slip rate based on a vehicle wheel speed, comparing the slip rate with a slip rate target range, and adjusting the clamping force request according to a comparison result. Performing motor control; wherein the slip rate target range is adjusted according to the road surface condition obtained by recognizing the image of the road surface in front of the vehicle. The ABS function has redundancy control, rapid braking is guaranteed, meanwhile, longitudinal braking force and lateral stability are better balanced, and higher guarantee is provided for driving safety.

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.

An OTA security update method and system for intelligent connected vehicles are provided. The method includes: the downloaded software update packet from a CDN to UC-master is decrypted, and verified for the first time through signature verification; for the secondary verification, decomposing a current software update packet into a plurality of sub-packets; calculating HASH values of the sub-packets in sequence; thereafter, constructing a Merkle tree according to these HASH values; calculating a root HASH value of the Merkle tree; after the sub-packets are transferred from a UC-master to ECU-UAs through a gateway or a domain controller, recalculating the HASH values of the sub-packets; reconstructing the Merkle tree according to these HASH values; recalculating the root HASH value of the Merkle tree; comparing the two HASH values; if they are equal, starting a normal update procedure; otherwise, terminating this OTA update by the UC-master immediately.

The invention belongs to the field of vehicle remote communication, and discloses an intelligent cabin area controller log remote acquisition system and method, and the system comprises a remote application interface which is used for obtaining a man-machine interaction interface for logs; the TSP remote service platform is used for managing the log pulling instruction network interface, the log uploading network interface and the storage of the uploaded logs; the intelligent cockpit domain controller CDC and the large screen are used for internally recording and storing system and application running logs of all modules running in the latest time period; and the 4G module is used for establishing mobile communication with the outside. According to the invention, the vehicle machine, voice, navigation, instrument and bus logs of the intelligent cockpit domain controller can be obtained under the condition of being far away from the vehicle, and development and test personnel are helped to analyze the intelligent cockpit problem. When a use problem occurs in the vehicle intelligent cockpit domain, the method can select different modes to obtain the intelligent cockpit domain controller log according to an actual scene, so as to help development and test personnel to remotely check the problem.

The invention discloses a service-oriented high-voltage regulation electricity supplementing method and device and a storage medium. Comprising the steps that the SOC and the voltage of a low-voltage battery pack are continuously monitored, when the SOC of the low-voltage battery pack is smaller than a charging SOC threshold value and an enabling position is actively awakened, a back-domain controller, a vehicle control unit and a front-domain controller are awakened, and information of the low-voltage battery pack is sent to the back-domain controller; the back-domain controller judges that conditions are met, sends a charging request to the vehicle control unit, charges the low-voltage battery pack through the vehicle control unit and the high-voltage battery pack, customized services are made on the basis of an SOA framework and high-voltage power-on, during charging, high-voltage power-on can be achieved at an OFF gear, only the target controller is awakened on the basis of sub-network segment management, simultaneous awakening of the whole vehicle is avoided, power consumption is reduced, and power consumption is reduced. And meanwhile, the back-domain controller can be awakened only when the back-domain controller is at the active awakening enabling position, so that the problems of frequent network awakening, electric energy loss and battery safety are solved, and the requirements of accurate awakening, power saving, safety and high efficiency of power compensation are met.

The invention discloses a cross-domain time-sensitive satellite network traffic scheduling method based on a TSN and MF-TDMA, and the method comprises the steps: a cross-domain controller collects network topology information, builds a satellite cluster global network model, carries out the collection of data and task demands, and a user controller collects an intra-domain sending end traffic access request, the traffic demand is reported to the cross-domain controller and the in-satellite controller; the cross-domain controller performs flow characteristic analysis and establishes a flow model; the in-satellite controller evaluates the network load, constructs a dynamic network resource state information base, and determines the traffic scheduling granularity according to the long-time stable service; according to the positions of the source node and the destination node of the service flow, the cross-domain controller and the in-satellite controller respectively calculate the scheduling paths of the cross-domain flow and the single-domain flow; and according to the routing result of each flow, based on the scheduling decision variable, establishing a wireless and wired joint scheduling constraint and optimization target, generating an integer linear equation, and solving an optimal solution to generate a scheduling scheme.

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 an automatic driving virtual-real fusion test system and method based on simulation scene real vehicle injection. The system comprises a cloud control platform end and a real vehicle end. The cloud control platform end comprises a map module and a first interactive scene generation module, the real vehicle end comprises a scene injection machine, a domain controller and a real vehicle, and a second interactive scene generation module is embedded in the scene injection machine; the testing process comprises the steps that the cloud control platform end issues a lane-level task path generated by the map module and an interactive scene which is generated by the first interactive scene generation module and contains background traffic flow core data to the scene injection machine; the scene injection machine forwards the lane-level task path and the interactive scene to a domain controller; and the domain controller performs algorithm planning according to the background traffic flow core data, sends a motion instruction to a real vehicle for tracing, and returns sensing information to the scene injection machine. Compared with the prior art, the method has the advantages of high test reliability and high efficiency.

The invention discloses a hardware-in-the-loop test of an automatic driving domain controller. The hardware-in-the-loop test comprises a real-time processor and a graphic workstation, the graphic workstation is used for generating simulated traffic scene information, generating simulated sensor information based on the simulated traffic scene information, and transmitting the simulated traffic scene information and first simulated sensor information in the simulated sensor information to the automatic driving domain controller; transmitting second simulation sensor information in the simulation sensor information to a real-time processor; the real-time processor is used for transmitting the second simulation sensor information to the automatic driving domain controller and receiving vehicle control information fed back by the automatic driving domain controller. According to the hardware-in-the-loop test system and device of the automatic driving domain controller and the storage medium provided by the invention, the problem that scene information is not matched with sensor sensing information during hardware-in-the-loop test can be avoided, and the test accuracy is improved.

The invention discloses a vehicle integrated domain controller framework, a vehicle management system and an automobile, the vehicle integrated domain controller framework comprises a low-voltage battery, a battery management module, a low-voltage power distribution module and a heat management module, the low-voltage battery is electrically connected with the low-voltage power distribution module, and the battery management module is electrically connected with the low-voltage power distribution module. The low-voltage power distribution module is provided with a low-voltage load access end used for accessing a low-voltage load, the thermal management module is provided with a thermal management load access end used for accessing a thermal management load, and the battery management module, the low-voltage power distribution module and the thermal management module share the same controller. A function of managing a low-voltage battery and a function of managing a thermal management load and a low-voltage load are integrated in the controller, control modules in a battery management scheme, a low-voltage power distribution scheme and a thermal management scheme are creatively integrated into the same controller, a control circuit is simplified, and the controller has the advantages of being low in cost, simple in structure and the like.

The present application belongs to the technical field of vehicles. Disclosed are a diagnosis method, apparatus and device, a storage medium and a vehicle. The method is applied to a power domain controller of an extended-range electric vehicle, and comprises: receiving a diagnosis request sent by an engine controller of the extended-range electric vehicle, wherein the execution of a diagnosis task corresponding to the diagnosis request is related to a range extender of the extended-range electric vehicle; in response to the diagnosis request, acquiring the discharge capacity of a battery of the extended-range electric vehicle and the power requirements of the extended-range electric vehicle; and when the discharge capacity meets the power requirements, controlling the range extender to be in an operating state corresponding to the diagnosis task, and executing the diagnosis task.

A vehicle diagnosis method and an apparatus. The method is applied to a vehicle comprising at least one component, the at least one component comprising at least one domain controller. The method comprises: a first domain controller amongst the at least one domain controller receiving a diagnosis instruction from a server (S1001), the diagnosis instruction being used for initiating diagnosis of a component to be diagnosed, and the component to be diagnosed being one or more components amongst the at least one component comprised in the vehicle; and then, according to the diagnosis instruction, the first domain controller acquiring data to be diagnosed of the component to be diagnosed (S1002), said data being used for diagnosing the component to be diagnosed. This method can solve the problems that software faults, performance reliability and the like of domain controllers in vehicles are difficult to diagnose by means of reading fault codes, data streams, etc., thereby achieving diagnosis of domain controllers in vehicles.

The invention provides a multi-sensor domain controller dynamic management method and a domain controller system, and the method comprises the following steps: S1, taking an external Ethernet gateway as a main clock source, and carrying out the time service of an MCU module in a domain controller based on a GPTP protocol; s2, the MCU module serves as a secondary clock source, distributes synchronous clock signals to the SOC module and an external sensor and collects clock skew data in real time; s3, when the main clock source fails, automatically switching to an internal GNSS module and an IMU module as standby clock sources, and dynamically compensating a time sequence error based on historical clock skew data; s4, controlling a global time synchronization error to be less than 150 microseconds through hardware-level timestamp marking and a software-level error correction algorithm; and S5, based on the synchronized time sequence data, performing timestamp alignment and fusion on the heterogeneous data input by the multiple sensors. According to the invention, the problems of clock redundancy and insufficient error compensation in the prior art are solved.

The invention discloses an end-to-end automobile chassis integrated control method, which comprises the following steps of: 1, collecting and analyzing vehicle sensor signals in a real driving scene so as to construct a chassis state training database with labels; 2, establishing a chassis control training instruction library based on a chassis state training database; 3, constructing an operation evaluation network, and training to obtain an operation evaluation model; 4, constructing a chassis integrated control network, and training to obtain a chassis integrated control model; 5, constructing a chassis domain controller based on the joint learning network; and 6, collecting sensor data through the chassis domain controller to supplement the chassis state training database. According to the invention, the control instruction can be directly output based on the information of the vehicle chassis sensor, so that the stability control of the vehicle in a complex and changeable driving environment can be realized.

The invention provides a vehicle diagnosis system and method, a storage medium and a vehicle. The vehicle diagnosis system at least comprises a master management module and a plurality of slave management modules. The main management module is used for communicating with each slave management module based on a wireless link so as to collect the state information of the corresponding domain controller collected by each slave management module, and performing diagnosis analysis on each domain controller based on the state information so as to obtain a diagnosis result; wherein the slave management module is also used for storing the acquired state information when the wireless link is detected to be abnormal, so as to transmit the stored state information to the master management module after the wireless link is recovered to be normal. According to the invention, the conditions of the domain controller and the modules thereof can be effectively monitored and analyzed, and the overall stability and information processing efficiency of the system are improved; and the slave management module can keep the storage of key information, so that the data cannot be lost, and the stability and the service quality of the system are further guaranteed.

A method of cross-domain policy orchestration may include executing, with a cross-domain automation (CDA) controller, a macro-segmentation of a plurality of domains based at least in part on metadata defining a mapping to a corresponding plurality of domain controllers, and executing, with the CDA controller, a micro-segmentation of policies within a group based at least in part on a merged policy matrix obtained from policies of the domain controllers.

The invention relates to an open-circuit fault detection method and device, a domain controller, a system and a vehicle, and relates to the technical field of open-circuit fault detection. According to the method, the three-phase current data of the cooling water pump can be firstly obtained, and under the condition that at least one phase of current data in the three-phase current data meets the pre-judged open circuit condition, at least one of the following motor parameters including the three-phase current unbalance degree, rotor data and water pump vibration data is monitored. If it is monitored that any motor parameter in the three-phase current unbalance degree, the rotor data and the water pump vibration data is abnormal, it is determined that the current data meeting the pre-judgment open-circuit condition occurs, and an open-circuit fault occurs to the target phase corresponding to the current data meeting the pre-judgment open-circuit condition. Therefore, under the condition that the suspected open circuit of the corresponding phase is predicted according to the single-phase current, prediction can be performed by fusing at least one motor parameter of the cooling water pump, so that the misjudgment rate of the open-circuit fault of the cooling water pump can be reduced and the open-circuit phase positioning precision can be improved through multi-data cooperative detection.

The invention relates to a vehicle control method, device and system based on a wading detection function and a vehicle. The method is applied to a domain controller of a vehicle and comprises the steps that after the vehicle enters a wading mode, the wading depth is obtained through a wading detection sensor, and the temperature and humidity of the environment where the vehicle is located and the running speed of the vehicle are obtained. According to the temperature and humidity, the driving speed and the fording depth, the fording risk level of the vehicle is determined, and the fording risk level is used for indicating the current fording safety degree of the vehicle. And controlling at least one actuator in the vehicle according to the wading risk level. The sensors and the actuators are directly connected with the domain controller for data acquisition and analysis, and the domain controller directly controls the actuators in the vehicle, so that delay caused by transmission between electronic control units is effectively avoided, quick response can be realized in a wading mode, the vehicle can be controlled, and the driving safety of the vehicle is improved. And the safety requirement under the wading condition is met.

A vehicle parking method and apparatus, and a vehicle. The method is applied to a domain controller. The method comprises: when a current position of a vehicle is located in a parking area and the distance between the current position and a target parking space in the parking area is greater than a first preset distance, acquiring first image information captured by a first camera and second image information captured by a second camera (S301), distance ranges captured by the first camera and the second camera being different; sending the first image information and a processing request instruction to a vehicle controller (S302), the processing request instruction being used for instructing the vehicle controller to process the first image information to obtain first image feature information (S304); receiving the first image feature information sent by the vehicle controller (S306); and, on the basis of the first image feature information and the second image information, generating a first parking route (S307). According to the parking method, the problem of collisions that may occur during long-distance parking can be solved, thereby improving the safety performance of the vehicle while reducing the costs of the vehicle.

A domain controller (203) and an energy storage system (200) are provided. The domain controller (203) is used for the energy storage system (200), the energy storage system (200) comprises an energy storage unit (201) and a non-energy storage unit (202), the non-energy storage unit (202) comprises a thermal management unit and a fire fighting unit, and the non-energy storage unit (202) is used for assisting the energy storage unit (201); the domain controller (200) integrates a management module (2011) of the energy storage unit (201) and a management module (2021) of the non-energy storage unit (202) and is used for managing the non-energy storage unit (202) according to state information of the energy storage unit (201), the management strategy of the energy storage system (200) can be reasonably adjusted, and efficient energy-saving management of the energy storage system (200) is achieved.

The embodiment of the invention provides a vehicle positioning method and device, electronic equipment and a storage medium, and the method is applied to a simulation system, and comprises the steps: collecting the current coordinates and vehicle pose data of a simulation vehicle on a target map in a process of controlling the simulation vehicle to operate in an intelligent driving simulation scene; converting the current coordinate based on the projection mode of the target map to obtain a target coordinate, the target coordinate being a coordinate corresponding to the coordinate type required by the domain controller; the target coordinates and the vehicle pose data are coupled to obtain coupling data, the coupling data are sent to a domain controller, and the coupling data are applied to vehicle positioning of the auxiliary domain controller. According to the invention, the technical problem that the precision is low when a simulation test is used for vehicle positioning in the prior art is solved.

The invention relates to a running log determination method, a vehicle-mounted system, equipment and a storage medium, and relates to the field of vehicle-mounted domain controllers. The method comprises the following steps: firstly, storing a key running log of a key chip core; wherein the key chip core comprises a microcontroller core and / or a protocol core. Subsequently, when an error event is monitored, an event identifier of the error event can be obtained, and the key operation log corresponding to the event identifier of the error event in the key operation logs is determined as an effective operation log. Therefore, the effective running log can be obtained from the real running environment, so that the accuracy of obtaining the effective running log is improved.

The invention discloses a vehicle diagnosis method and device and relates to the technical field of vehicles. The method can solve the problem that the software fault, the performance reliability problem and the like of the domain controller in the vehicle are difficult to diagnose by reading fault codes, data streams and the like, and realizes the diagnosis of the domain controller in the vehicle. The method is applied to a vehicle including at least one component including at least one domain controller therein. The method comprises the steps that a first domain controller in at least one domain controller receives a diagnosis instruction from a server, the diagnosis instruction is used for initiating diagnosis of a to-be-diagnosed component, and the to-be-diagnosed component is one or more of at least one component contained in a vehicle. And then the first domain controller obtains to-be-diagnosed data of the to-be-diagnosed part according to the diagnosis instruction, wherein the to-be-diagnosed data is used for diagnosing the to-be-diagnosed part.

The embodiment of the invention provides a vehicle interaction control method and system, a vehicle and a computer readable storage medium, and relates to the technical field of vehicles and the technical field of vehicle-mounted intelligent interaction systems. The method comprises the following steps: analyzing and processing multi-dimensional perception information acquired by a vehicle in real time to obtain dynamic scene features; a vehicle interaction scene is constructed based on the dynamic scene features and a scene generation model, and the scene generation model is a dynamic decision model obtained by performing machine learning training based on multi-dimensional perception training data corresponding to the vehicle; performing matching interaction decision on the vehicle interaction scene to generate a target interaction strategy; according to the target interaction strategy, a control instruction is sent to a plurality of domain controllers of the vehicle, and the control instruction is used for triggering the vehicle to execute a multi-mode interaction action. According to the invention, the technical problems of poor environmental adaptability, inaccurate decision and single interaction form of a vehicle-mounted scene perception interaction scheme in the prior art are solved.

The invention provides a vehicle electromagnetic compatibility radiation anti-interference test method and device, a vehicle and a medium, and relates to the field of vehicle testing, and the method comprises the steps: shielding a wire harness between a first domain controller and a second domain controller, and obtaining a wire harness shielding result; the shielding layer located at the first domain controller end or the shielding layer located at the second domain controller end is grounded, the shielding layer at the other domain controller end is suspended, and capacitive coupling is formed between the shielding layer and the ground plane; and carrying out electromagnetic compatibility radiation anti-interference test on the vehicle according to a wire harness shielding result and capacitive coupling. According to the invention, the wire harness between the first domain controller and the second domain controller is fully shielded, so that a high-frequency interference coupling path can be blocked; and the shielding layer of the first domain controller end or the second domain controller end is grounded, and then the shielding layer of the other domain controller end is suspended to form single-end grounding, so that high-frequency interference can be prevented from entering a communication link through wiring harness coupling.

Provided is a communication system based on end-to-end data encryption. The system includes a domain controller, an actuator, and a sensor. The sensor is configured to sense vehicle state information and transmit the vehicle state information as sensed to the domain controller through an end-to-end communication protection protocol; and the domain controller is configured to acquire a control instruction based on the vehicle state information as received, and transmit a corresponding control instruction to a corresponding actuator through the end-to-end communication protection protocol. The end-to-end communication protection protocol is additionally provided with a cyclic code that is variable and configured to encrypt information for communication.