Vehicle control system and connected domain controller

Abstract

The utility model provides a kind of vehicle control system and network connection area controller.The vehicle control system includes: network connection area controller, communication module, network exchange chip and data storage chip are integrated in network connection area controller;Among them, communication module is configured to, with external device and cloud communication;Network exchange chip is configured to, conversion network protocol;Data storage chip is configured to, record and store the running data of vehicle.The vehicle control system provided by the utility model, system architecture is simple, the number of wiring harness is less, reduce power consumption, reduce the occupied space of system, facilitate system installation and maintenance, effectively reduce cost, and improve the reliability of system whole.

Description

Technical Field

[0001] This utility model relates to the fields of unmanned driving, autonomous driving, and unmanned vehicle technology, specifically to a vehicle control system and a network domain controller. Background Technology

[0002] Currently, vehicle intelligent control systems typically employ a distributed architecture, which has several significant drawbacks. For example, it suffers from poor reliability and a high failure rate under continuous vehicle vibration and harsh operating conditions. Furthermore, multiple independent controllers result in high system costs, a large number of components, significant space requirements, and complex installation and maintenance. Utility Model Content

[0003] In view of this, the present invention provides a vehicle control system and a connected domain controller to simplify the system architecture and reduce system costs.

[0004] In a first aspect, one embodiment of the present invention provides a vehicle control system, including a network domain controller, which integrates a communication module, a network switching chip, and a data storage chip; wherein, the communication module is configured to communicate with external devices and the cloud; the network switching chip is configured to convert network protocols; and the data storage chip is configured to record and store vehicle operating data.

[0005] In conjunction with the first aspect, in some implementations of the first aspect, the vehicle control system further includes a lidar and an autonomous driving domain controller. The connected domain controller is provided with a first type interface and a second type interface. The first type interface is electrically connected to the network switching chip and the lidar so as to input the communication protocol data used by the lidar to the network switching chip for conversion. The second type interface is electrically connected to the network switching chip and the autonomous driving domain controller so as to send the communication protocol data used by the lidar after conversion by the network switching chip to the autonomous driving domain controller.

[0006] In conjunction with the first aspect, in some implementations of the first aspect, the connected domain controller and the autonomous driving domain controller are also connected via a CAN bus communication link, so as to form a dual communication link between the connected domain controller and the autonomous driving domain controller together with the second type interface.

[0007] In conjunction with the first aspect, in some implementations of the first aspect, the first type of interface is an industrial Ethernet interface, and the second type of interface is an automotive Ethernet interface.

[0008] In conjunction with the first aspect, in some implementations of the first aspect, the physical connector used by the first type of interface is an automotive-grade connector.

[0009] In conjunction with the first aspect, in some implementations of the first aspect, the network switching chip is configured to apply virtual LAN technology to establish directed routing between the first type interface and the second type interface.

[0010] In conjunction with the first aspect, in some implementations of the first aspect, the communication module includes a cellular mobile communication unit and a V2X communication unit, and the network domain controller is provided with a cellular mobile communication antenna interface and a V2X antenna interface; wherein, the cellular mobile communication unit is electrically connected to the cellular mobile communication antenna interface so as to realize communication between the vehicle and the cloud through the cellular mobile communication antenna interface; the V2X communication unit is electrically connected to the V2X antenna interface so as to realize communication between the vehicle and external devices through the V2X antenna interface.

[0011] In conjunction with the first aspect, in some implementations of the first aspect, the connected domain controller is equipped with a CAN interface; wherein, the CAN interface is electrically connected to a data storage chip so as to store the collected CAN bus data of the vehicle chassis to the data storage chip; the data storage chip is electrically connected to a communication module so as to send the stored CAN bus data directly to the cloud through the communication module.

[0012] In conjunction with the first aspect, some implementations of the first aspect also include integrated navigation, which is directly connected to the autonomous driving domain controller in order to send vehicle positioning data to the autonomous driving domain controller.

[0013] In conjunction with the first aspect, in some implementations of the first aspect, the connected domain controller uses automotive-grade chips.

[0014] Secondly, one embodiment of this utility model provides a network-connected domain controller, including: a communication module, a network switching chip, and a data storage chip; wherein, the communication module is configured to communicate with external devices and the cloud; the network switching chip is configured to convert network protocols; and the data storage chip is configured to record and store vehicle operating data.

[0015] The vehicle control system proposed in this invention integrates the communication module, network switching chip, and data storage chip into a single network domain controller. It achieves communication with external devices and the cloud, network protocol conversion, and recording of operating data with only a single controller. The system architecture is simple, with fewer wiring harnesses, reducing power consumption and system footprint, and facilitating system installation and maintenance. It solves the problem of high system cost and numerous parts caused by using multiple independent controllers for independent control, effectively reducing costs and improving the overall reliability of the system. Attached Figure Description

[0016] The above and other objects, features, and advantages of this utility model will become more apparent from the more detailed description of the embodiments thereof in conjunction with the accompanying drawings. The drawings are provided to further illustrate the embodiments of this utility model and form part of the specification. They are used together with the embodiments of this utility model to explain the utility model and do not constitute a limitation thereof. In the drawings, the same reference numerals generally represent the same parts or steps.

[0017] Figure 1 The diagram shown is a structural schematic of a vehicle control system provided by the prior art.

[0018] Figure 2 The diagram shown is a structural schematic of the vehicle control system provided by this utility model.

[0019] Figure 3 The diagram shown is a framework diagram of an intelligent system based on a networked domain controller provided by this utility model.

[0020] Figure 4 A schematic diagram of the structure of the network domain controller provided by this utility model.

[0021] Figure 5 The diagram shown is a structural schematic of another networked domain controller provided by this utility model. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] The vehicle control system provided in this embodiment can be used to control an unmanned wide-body transport vehicle. In the prior art, the vehicle control system of an unmanned wide-body transport vehicle consists of a lidar system, integrated navigation, an autonomous driving domain controller, a vehicle data recorder, an onboard unit, and a 5G (5th Generation mobile communication technology) terminal, etc. The vehicle control system undertakes important functions related to unmanned driving, such as perception, positioning, decision-making, networking, and data storage.

[0024] Figure 1 The diagram shows a structural schematic of a vehicle control system provided by existing technology. Figure 1As shown, the switch connects the onboard unit, 5G terminal, vehicle data recorder, and autonomous driving domain controller. The autonomous driving domain controller connects to the LiDAR and integrated navigation system to achieve autonomous driving functionality. The onboard unit connects to the Vehicle to Everything (V2X) antenna for V2X communication; the 5G terminal connects to the 5G antenna for vehicle-to-cloud communication. The autonomous driving domain controller and vehicle data recorder communicate with the vehicle chassis. The vehicle data recorder stores vehicle operating data and can transmit it to the cloud via the 5G terminal for engineers to download and analyze. The protocol conversion box connects to the LiDAR and intelligent driving data recorder to convert network protocols. All components collaborate through data transmission to achieve autonomous driving control of the vehicle. Therefore, the reliability of each component within the system determines the vehicle's operating efficiency and affects its safety.

[0025] However, existing vehicle control systems, including protocol converters, switches, on-board units, and 5G terminals, contain controllers with limited functionality. Each device comprises a main control chip, a printed circuit board assembly (PCBA), and a housing. Manufacturing each device requires separate hardware development, software design, and housing molding, resulting in excessive computing power and high overall costs. Furthermore, the system includes multiple independent controllers, leading to high system costs, numerous components, large space requirements, and complex installation and maintenance.

[0026] In view of this, the present invention proposes a new architecture for a vehicle control system to solve the above problems.

[0027] Figure 2 The diagram shown is a structural schematic of the vehicle control system provided by this utility model. Figure 2 As shown, the system includes a network domain controller 100, which integrates a communication module 101, a network switching chip 102, and a data storage chip 103. The communication module 101 is configured to communicate with external devices and the cloud; the network switching chip 102 is configured to convert network protocols; and the data storage chip 103 is configured to record and store vehicle operating data.

[0028] Optionally, the connected domain controller uses automotive-grade chips. Automotive-grade chips offer higher stability and reliability, reducing the risk of system failure due to chip malfunction during vehicle operation. Consequently, connected domain controllers using automotive-grade chips are better suited to the complex and harsh operating environment of vehicles.

[0029] For example, communication module 101 includes a cellular mobile communication unit, a V2X communication unit, and a wireless Fidelity (WiFi) communication unit. Exemplarily, the cellular mobile communication unit includes a 4G (4th Generation mobile communication technology) communication unit and a 5G communication unit, enabling high-speed data transmission between the vehicle and the cloud. The V2X communication unit supports information interaction between vehicles, between vehicles and infrastructure, and between vehicles and pedestrians, enhancing driving safety and traffic efficiency. Exemplarily, the 5G communication unit receives instructions from the operating platform to update map data; the V2X communication unit enables real-time data sharing with surrounding vehicles and infrastructure.

[0030] In practical applications, the external devices connected to the autonomous driving domain controller are mostly industrial-grade products with relatively lagging development. Meanwhile, the autonomous driving domain controller itself has developed rapidly, leading to a mismatch between the communication protocols used by the autonomous driving domain controller and the external devices. To solve this problem, ensure the normal operation of the autonomous driving domain controller, and improve system architecture compatibility, the connected domain controller 100 includes a network switching chip 102, which is configured to switch network protocols.

[0031] Optionally, the network switching chip 102 includes a switch chip. The network switching chip 102 provides multiple interfaces to support high-speed data exchange with external devices. For example, the network switching chip 102 connects to sensors such as vehicle cameras and radar via interfaces to receive data collected by the sensors and convert the network protocol for forwarding the converted data. Since the network protocol is converted via the switch chip, no hardware conversion is used, thus not consuming the microcontroller's computing power. Even under demanding conditions requiring gigabit broadband transmission, it operates without strain, which helps reduce costs.

[0032] The data storage chip 103 is configured to record and store vehicle operating data. In some embodiments, the data storage chip 103 is connected to the vehicle chassis to record and store vehicle operating data transmitted by the chassis. For example, the data storage chip 103 stores the operating data transmitted by the chassis in real time, allowing maintenance personnel to troubleshoot problems based on the operating data recorded in the data storage chip 103 after a chassis failure, thus improving the efficiency of troubleshooting.

[0033] Optionally, the data storage chip 103 includes an embedded MultiMediaCard (eMMC) chip. eMMC chips have advantages such as small size, low power consumption, and high data transmission speed, enabling them to stably store large amounts of data and ensuring data integrity and security even in the complex operating environment of a vehicle.

[0034] In some embodiments, the network domain controller 100 also integrates a microcontroller unit (MCU). The communication module 101, the network switching chip 102, and the data storage chip 103 are respectively connected to the MCU, and the MCU controls and manages the communication module 101, the network switching chip 102, and the data storage chip 103.

[0035] The vehicle control system proposed in this invention integrates the communication module, network switching chip, and data storage chip into a single network domain controller. It achieves communication with external devices and the cloud, network protocol conversion, and recording of operating data with only a single controller. The system architecture is simple, with fewer wiring harnesses, reducing power consumption and system footprint, and facilitating system installation and maintenance. It solves the problem of high system cost and numerous parts caused by using multiple independent controllers for independent control, effectively reducing costs and improving the overall reliability of the system.

[0036] To achieve autonomous driving functionality, in some embodiments, the vehicle control system further includes a LiDAR and an autonomous driving domain controller. The connected domain controller is equipped with a first type of interface and a second type of interface. The first type of interface is electrically connected to the network switching chip and the LiDAR to input the communication protocol data used by the LiDAR to the network switching chip for conversion. The second type of interface is electrically connected to the network switching chip and the autonomous driving domain controller to send the communication protocol data converted by the network switching chip and used by the LiDAR to the autonomous driving domain controller.

[0037] Specifically, LiDAR is used to collect environmental information and generate perception data. The autonomous driving domain controller receives the perception data from LiDAR, the positioning data from the integrated navigation system, the map data, and the instructions sent by the connected domain controller, and then sends the instructions to the vehicle chassis, which executes the vehicle's motion control.

[0038] In this embodiment, the first type of interface matches the communication protocol type used by the LiDAR; the second type of interface matches the communication protocol type used by the autonomous driving domain controller. This design is because LiDAR typically uses specific high-speed communication protocols, such as Industrial Ethernet, for real-time data transmission, while the autonomous driving domain controller may use different control protocols, such as automotive Ethernet. Therefore, the first type of interface is needed to ensure accurate reception and parsing of LiDAR data, and the second type of interface is needed to adapt to the control protocol used by the autonomous driving domain controller.

[0039] This invention provides a specific method for converting communication protocol data, enabling data conversion and transmission between different communication protocols. This ensures system compatibility with different devices, improves system communication reliability, and enhances system stability and scalability.

[0040] Optionally, the LiDAR uses industrial Ethernet data as its communication protocol, and the autonomous driving domain controller uses the vehicle Ethernet protocol. The first type of interface is an industrial Ethernet interface, and the second type of interface is a vehicle Ethernet interface, so that the LiDAR and the network switching chip can be electrically connected through the industrial Ethernet interface, and the autonomous driving domain controller and the network switching chip can be electrically connected through the vehicle Ethernet interface.

[0041] It should be noted that LiDAR transmits data typically in the form of industrial Ethernet. Furthermore, due to the relatively slow development of the LiDAR industry, some LiDAR systems do not support automotive Ethernet protocols. In contrast, autonomous driving domain controllers, which have developed more rapidly and typically support automotive Ethernet protocols, cannot recognize the data transmitted by LiDAR. To ensure proper system operation, the network switching chip integrated in the connected domain controller is needed to convert the industrial Ethernet data transmitted by the LiDAR into automotive Ethernet data that the autonomous driving domain controller can process.

[0042] In practical implementation, the industrial Ethernet data used by the LiDAR is transmitted to the network switching chip through the industrial Ethernet interface. The network switching chip performs protocol conversion on the industrial Ethernet data to obtain vehicle Ethernet data. The network switching chip then transmits the converted vehicle Ethernet data to the autonomous driving domain controller through the vehicle Ethernet interface to realize data communication between the LiDAR and the autonomous driving domain controller.

[0043] This embodiment of the invention satisfies the data transmission requirements of LiDAR through an industrial Ethernet interface; and ensures that the autonomous driving domain controller can accurately receive and process the protocol-converted data through an in-vehicle Ethernet interface, thereby achieving efficient collaboration between the environmental information collected by the LiDAR and the autonomous driving domain controller, and solving the problem of incompatibility between the communication protocols of the LiDAR and the autonomous driving domain controller. Simultaneously, during actual vehicle operation, the road condition data captured in real time by the LiDAR is quickly transmitted to the network switching chip through the industrial Ethernet interface, and after protocol conversion, it is transmitted to the autonomous driving domain controller in the in-vehicle Ethernet protocol format, providing timely and reliable data support for the vehicle's autonomous driving function, effectively improving the vehicle's response speed and driving safety under complex operating conditions.

[0044] In other embodiments, the vehicle control system also includes a driver data recorder. A large amount of video and log data needs to be recorded within the autonomous driving domain controller; the driver data recorder is used to record and store the data processed by the autonomous driving domain controller.

[0045] In practical applications, the current intelligent driving data recorder does not support the vehicle Ethernet interface, which means that when the intelligent driving data recorder transmits data with the autonomous driving domain controller, it is necessary to use a protocol conversion box for protocol conversion, which makes the system structure complex and increases costs.

[0046] To further simplify the vehicle control system structure, the connected domain controller is equipped with interfaces for connecting to the autonomous driving domain controller and the intelligent driving data recorder. The onboard Ethernet data output from the autonomous driving domain controller is transmitted to the network switching chip via the corresponding interfaces. The network switching chip performs protocol conversion, transforming the data into protocol data suitable for the intelligent driving data recorder. The converted data is then transmitted to the intelligent driving data recorder via the interface, enabling data recording and storage. This approach eliminates the need for an additional protocol conversion box, simplifying the system structure and reducing costs.

[0047] To ensure normal communication between the connected domain controller and the autonomous driving domain controller and to avoid system anomalies caused by communication failures, in some embodiments, the connected domain controller and the autonomous driving domain controller are also connected via a CAN bus to form a dual communication link between the connected domain controller and the autonomous driving domain controller together with the second type interface.

[0048] Through communication between the connected domain controller and the autonomous driving domain controller, collaborative control and information exchange of driving functions can be achieved. Specifically, the connected domain controller transmits acquired environmental information, cloud commands, and operational data to the autonomous driving domain controller in real time, providing multi-dimensional data support for its decision-making. Simultaneously, vehicle control commands generated by the autonomous driving domain controller can also be fed back to the connected domain controller, which records the data or uploads it to the cloud, forming a closed-loop information exchange mechanism to ensure the stable implementation of driving functions in complex scenarios.

[0049] In some embodiments, to ensure efficient and stable data interaction between the autonomous driving domain controller and the connected domain controller, and to avoid data transmission interruptions due to a single communication link failure, an additional Controller Area Network (CAN) bus communication connection is established between the connected domain controller and the autonomous driving domain controller, in addition to data transmission via the second type interface. CAN bus, as a mature in-vehicle communication protocol, features high reliability, strong real-time performance, and outstanding anti-interference capabilities, enabling stable operation in the complex electromagnetic environment of a vehicle. Through this dual communication link design, when one link fails, the other link can immediately take over the data transmission task, ensuring continuous and accurate data flow between the two controllers. This effectively improves the fault tolerance and operational stability of the entire vehicle control system, providing communication assurance for the safe implementation of autonomous driving functions.

[0050] For example, when the second type interface malfunctions or experiences a communication anomaly, data can be transmitted via the CAN bus to ensure uninterrupted data transmission between the connected domain controller and the autonomous driving domain controller. For instance, the connected domain controller and the autonomous driving domain controller are connected via an MCU, meaning the connected domain controller is connected to the MCU. The MCU can connect to the autonomous driving domain controller via both the second type interface and the CAN bus, forming a dual communication link. The MCU is configured to detect whether the second type interface is malfunctioning and whether there is a communication anomaly on the corresponding communication link. If a malfunction or communication anomaly is detected, when data is received again from the connected domain controller, it is transmitted to the autonomous driving domain controller via the CAN bus.

[0051] Furthermore, the connected domain controller, or the autonomous driving domain controller, can simultaneously receive data transmitted from the second type interface and the CAN bus, performing cross-verification on the data transmitted through these two communication links. Through this dual-channel parallel receiving mechanism, the system can compare and cross-verify data transmitted through two independent communication links. When one communication link experiences signal loss, data errors, or transmission interruptions, the system can immediately detect the anomaly and automatically switch to the other normal communication link, ensuring continuous and stable data transmission. This fault-tolerant mechanism effectively avoids the risk of single-point failure, providing dual protection for the vehicle control system, thereby maintaining the safe and stable operation of the vehicle under various complex operating conditions.

[0052] This utility model embodiment enhances the communication reliability and stability between the connected domain controller and the autonomous driving domain controller by setting up dual communication links, ensuring uninterrupted data transmission between the connected domain controller and the autonomous driving domain controller, and ensuring that the vehicle control system maintains a highly efficient and stable operating state in complex vehicle operating environments.

[0053] In some embodiments, the physical connector used in the first type of interface is an automotive-grade connector. Because automotive-grade connectors are characterized by high reliability, vibration resistance, shock resistance, and adaptability to harsh environments, they can meet the various complex operating conditions encountered by vehicles during operation, avoiding poor contact, loosening, and damage, ensuring a stable and reliable connection between the LiDAR and the network switching chip, and guaranteeing accurate data transmission to the network switching chip.

[0054] In conjunction with the foregoing embodiments, in other embodiments of this invention, the network switching chip is configured to apply Virtual Local Area Network (VLAN) technology to establish directed routes between the first type of interface and the second type of interface. It should be noted that VLAN technology is a technique for dividing a physical network into multiple logical networks. Each virtual subnet acts like an independent physical network, possessing its own broadcast domain. By applying VLAN technology to establish directed routes for the first type of interface and the second type of interface, data traffic isolation between the two types of interfaces is achieved.

[0055] For example, by using virtual local area network (VLAN) technology, the industrial Ethernet data transmitted by the LiDAR and the vehicle Ethernet data required by the autonomous driving domain controller are divided into different virtual subnets, thereby effectively isolating different types of data and reducing data interference and conflicts.

[0056] This embodiment of the invention improves data transmission efficiency, reduces data interference and conflicts, and enhances network security by applying virtual local area network (VLAN) technology, thereby ensuring the safe and efficient operation of vehicles.

[0057] In summary, the communication module includes a cellular mobile communication unit and a V2X communication unit. The connected domain controller is equipped with a cellular mobile communication antenna interface and a V2X antenna interface. The cellular mobile communication unit is electrically connected to the cellular mobile communication antenna interface to enable communication between the vehicle and the cloud; the V2X communication unit is electrically connected to the V2X antenna interface to enable communication between the vehicle and external devices.

[0058] It should be noted that the cellular mobile communication unit has multiple communication modes, supporting different generations of mobile communication technologies such as 4G and 5G. It can automatically switch to the optimal communication mode based on network coverage in the vehicle's driving area to ensure the continuity and stability of data transmission between the vehicle and the cloud. In some embodiments, the cellular mobile communication unit also supports multi-band communication, adapting to different regional communication frequency standards and improving the applicability of the connected domain controller in various regions. Furthermore, the cellular mobile communication unit has a built-in signal enhancement module. When the vehicle travels to areas with weak signals, such as tunnels or mountainous areas, it can automatically activate the signal enhancement function to reduce data transmission interruptions caused by signal attenuation, ensuring that real-time monitoring and remote control commands from the cloud can be accurately issued.

[0059] V2X communication units feature low latency and high reliability, enabling real-time information exchange between vehicles and other entities in the surrounding environment, such as vehicles, pedestrians, and traffic infrastructure. In some embodiments, the V2X communication unit supports both Dedicated Short Range Communications (DSRC) and Cellular Vehicle-to-Everything (C-V2X) technologies, allowing for flexible selection of the communication method based on the specific application scenario and communication requirements. For example, in open environments such as highways, C-V2X technology, with its longer communication range and greater mobility support, can obtain information such as traffic congestion and accident warnings ahead. In complex urban traffic environments, the low latency of DSRC technology ensures rapid information exchange between vehicles and traffic lights at intersections, assisting vehicles in making more rational traffic decisions. Furthermore, V2X communication units possess anti-interference capabilities. By employing frequency hopping technology and data encryption algorithms, they can effectively resist external electromagnetic interference and malicious attacks, ensuring the authenticity and integrity of the exchanged information and providing multi-dimensional information support for safe vehicle operation.

[0060] Specifically, in this embodiment, the V2X antenna interface is connected to the V2X antenna to enable communication between the vehicle and external devices. For example, the V2X antenna interface facilitates communication with external vehicles and infrastructure to achieve data sharing. The cellular mobile antenna interface is connected to the cellular mobile antenna to establish communication with the cloud. For example, the cloud sends control commands to the cellular mobile antenna interface via the cellular mobile antenna connection, and the commands are transmitted to the MCU via the cellular mobile antenna interface, enabling the MCU to control the vehicle's operation based on the control commands. Exemplarily, the cellular mobile antenna interface includes both a 5G interface and a 4G interface.

[0061] Optionally, the number of cellular mobile communication antenna interfaces and V2X antenna interfaces can be multiple to provide multi-channel transmission. For example, the V2X antenna interface adopts a dual-transmit, dual-receive (2Transmit, 2Receive, 2T2R) configuration and is connected to the V2X antenna. Optionally, the number of cellular mobile antenna interfaces can be four, which are connected to cellular mobile antennas of different frequency bands to realize multi-band, multi-channel data transmission.

[0062] This utility model embodiment enables communication between the vehicle and the cloud and external devices by setting up a cellular mobile communication antenna interface and a V2X antenna interface in the connected domain controller, so as to meet the vehicle's data transmission needs in different scenarios.

[0063] In light of the foregoing, to facilitate the management of vehicle operation data, the connected domain controller is equipped with a CAN interface. This CAN interface is electrically connected to a data storage chip to store the collected CAN bus data from the vehicle chassis. The data storage chip is also electrically connected to a communication module to transmit the stored CAN bus data directly to the cloud.

[0064] Optionally, there can be multiple CAN interfaces. Furthermore, in this embodiment, the CAN interface can be an automotive-grade interface, supporting a communication rate of 500kb / s, compatible with the CAN2.0A / B protocol, and with a configurable terminating resistor.

[0065] For example, the data storage chip is a CAN recorder, and the CAN interface is connected to the CAN recorder. The CAN bus data of the vehicle chassis is stored in the CAN recorder via the CAN interface. The communication module is a 5G communication module. Upon receiving a data acquisition command from the cloud, or when the current time is a preset transmission time, the CAN recorder sends the CAN bus data to the cloud via the CAN interface. For example, when the current time is a preset transmission time or the vehicle's mileage reaches a set value, the CAN recorder automatically triggers the data upload process, packaging and encrypting the stored CAN bus data via the 5G communication unit before sending it to the cloud. Additionally, if it receives a data acquisition command actively sent from the cloud, the CAN recorder responds immediately, prioritizing the processing of the command and uploading the CAN bus data to ensure the cloud can promptly grasp the vehicle chassis's operating data. Operating data includes vehicle speed, engine speed, braking pressure, and steering angle, providing data support for vehicle fault diagnosis, remote monitoring, and driving behavior analysis.

[0066] It should be noted that, as Figure 1 As shown, when CAN bus data is sent to the cloud, it needs to be transmitted from the CAN recorder to the switch, which then transmits the CAN bus data to the vehicle unit. Finally, the CAN bus data is transmitted to the cloud via the 5G communication unit. Figure 1 The data retrieval link shown is relatively long, resulting in low communication efficiency.

[0067] In this embodiment of the invention, by setting up a CAN interface, the CAN bus data is directly transmitted to the cloud via the connected domain controller, shortening the data link. Furthermore, to ensure remote vehicle wake-up, sleep mode, and CAN bus data retrieval during sleep mode, conventional architectures require the 5G terminal, on-board unit, protocol converter, and CAN recorder to be in a wake-up state, resulting in high static sleep current for the entire vehicle. The system architecture disclosed in this invention only requires the connected domain controller to be in a wake-up state, reducing system power consumption; it also improves data communication efficiency, enabling effective collection and storage of vehicle operating data, and allows data to be promptly transmitted to the cloud via the communication module, facilitating centralized management and analysis of the operating data.

[0068] In conjunction with the foregoing, the vehicle control system also includes integrated navigation, which is directly connected to the autonomous driving domain controller to send the vehicle's location data to the autonomous driving domain controller.

[0069] In this embodiment, the integrated navigation may include a Global Navigation Satellite System (GNSS) and an Inertial Measurement Unit (IMU). GNSS can receive positioning signals from multiple satellites, providing the vehicle with centimeter-level absolute position information. However, in scenarios with signal obstruction, the signal is susceptible to interference, leading to decreased positioning accuracy or even failure. In such cases, the IMU uses its internal accelerometer and gyroscope to perceive the vehicle's motion state in real time, such as acceleration and angular velocity, providing short-term high-precision relative positioning supplementation when GNSS signals are lost. The two systems combine the long-term stability of GNSS and the short-term high-precision advantage of the IMU through a data fusion algorithm, forming a complementary system that continuously outputs stable and reliable positioning data to the autonomous driving domain controller. For example, the positioning data includes longitude, latitude, elevation, driving speed, and heading angle. This positioning data forms the basis for the autonomous driving domain controller to perform path planning, lane keeping, and lateral and longitudinal vehicle control, ensuring that the vehicle can accurately perceive its position in the road environment.

[0070] Because it supports in-vehicle Ethernet communication protocols, it is directly mounted to the autonomous driving domain controller in this architecture. By establishing a direct communication connection between the integrated navigation system and the autonomous driving domain controller, data transmission efficiency and real-time performance are improved. This connection method allows the autonomous driving domain controller to obtain the latest positioning data in a timely manner, which is beneficial for more accurate vehicle path planning.

[0071] In order to demonstrate the structure of the vehicle control system more intuitively and comprehensively, Figure 3 The diagram shown is a framework diagram of an intelligent system based on a network-connected domain controller provided by this utility model. Figure 3As shown, the vehicle control system includes a LiDAR, integrated navigation, an autonomous driving domain controller, an intelligent driving data recorder, and a connected domain controller. The autonomous driving domain controller communicates with both the LiDAR and the integrated navigation via an in-vehicle Ethernet interface to acquire perception data generated by the LiDAR and positioning data sent by the integrated navigation. The autonomous driving domain controller also communicates bidirectionally with the vehicle chassis via a CAN bus to receive vehicle operation data transmitted from the chassis and to send commands to the chassis. The connected domain controller communicates unidirectionally with the vehicle chassis via a CAN bus and is also connected to the LiDAR via an in-vehicle Ethernet interface. Furthermore, to facilitate data transmission from the autonomous driving domain controller to the intelligent driving data recorder, the autonomous driving domain controller connects to the connected domain controller via an in-vehicle Ethernet interface. The connected domain controller is equipped with an automotive-grade plug-in to facilitate connection with the intelligent driving data recorder via an industrial Ethernet interface. In practice, the autonomous driving domain controller transmits in-vehicle Ethernet data to the connected domain controller; the connected domain controller converts the in-vehicle Ethernet data into industrial Ethernet data and, using the in-vehicle interface and industrial Ethernet interface deployed on the connected domain controller, transmits the industrial Ethernet data to the intelligent driving data recorder for data storage and recording.

[0072] In addition, the connected domain controller can enable communication between the vehicle and the cloud through a 5G antenna, and communication between the vehicle and external devices through a V2X antenna.

[0073] Figure 4 This is a schematic diagram of the structure of the network-connected domain controller provided by this utility model. Figure 4 As shown, this utility model embodiment also provides a network-connected domain controller 100, including: a communication module 101, a network switching chip 102, and a data storage chip 103; wherein, the communication module 101 is configured to communicate with external devices and the cloud; the network switching chip 102 is configured to convert network protocols; and the data storage chip 103 is configured to record and store vehicle operating data.

[0074] To provide a more intuitive and comprehensive demonstration of the structure of the network-connected domain controller, this application also provides Figure 5 . Specifically, Figure 5 The diagram shown is a structural schematic of another network-connected domain controller provided by this utility model. Figure 5As shown, the communication module 101 may include a 5G communication unit, a V2X communication unit, and a WiFi communication unit. The 5G communication unit is connected to a 5G antenna, the V2X communication unit is connected to a GNSS antenna and a V2X antenna, and the WiFi communication unit is connected to a WiFi antenna. The network domain controller also includes a power module, a microcontroller, an eMMC chip, CAN module 1, CAN module 2, and a network switching chip. The system includes: a power module to provide stable power to all internal modules and to enable power and data interaction via an internal bus; a GNSS antenna to receive signals from the Global Navigation Satellite System; two V2X antennas for vehicle-to-vehicle and vehicle-to-roadside communication; four 5G antennas for high-speed 5G communication; four in-vehicle Ethernet interfaces for connecting in-vehicle Ethernet devices; one industrial Ethernet interface for connecting to external industrial networks; a switch chip for converting network protocols; a microcontroller for system control and task scheduling; an eMMC chip for data storage; and two CAN modules, each connected to four high-speed CAN interfaces for high-speed communication with various electronic control units within the vehicle.

[0075] For example, the network-connected domain controller has multiple interfaces, and the type, purpose and quantity of each interface are shown in Table 1.

[0076] Table 1 The connected domain controller provided in this embodiment of the utility model is responsible for vehicle-to-vehicle and vehicle-to-cloud communication, and also for connecting communication devices with different Ethernet protocols in the vehicle, thereby improving the communication compatibility of the architecture with different electrical devices; the high integration makes the electrical architecture simpler and clearer; the number of electrical devices and wiring harnesses in the system is reduced, which reduces the system's space requirements in the vehicle and also reduces the installation workload on the production line.

[0077] The basic principles of this utility model have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this utility model are merely examples and not limitations, and should not be considered as essential features of each embodiment of this utility model. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the utility model from being implemented using the aforementioned specific details.

[0078] The block diagrams of the devices, apparatuses, equipment, and systems involved in this utility model are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0079] It should also be noted that in the apparatus, equipment, and method of this utility model, each component or step can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this utility model.

[0080] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present invention. Therefore, the present invention is not intended to be limited to the aspects shown herein, but rather to be carried out within the widest scope consistent with the principles and novel features disclosed herein.

[0081] The above description has been given for illustrative and descriptive purposes. Furthermore, this description is not intended to limit the embodiments of the present invention to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations therein.

Claims

1. A vehicle control system, characterized in that, This includes a network-connected domain controller, which integrates a communication module, a network switching chip, and a data storage chip; wherein, The communication module is configured to communicate with external devices and the cloud. The network switching chip is configured to convert network protocols; The data storage chip is configured to record and store the vehicle's operating data.

2. The vehicle control system according to claim 1, characterized in that, It also includes LiDAR and an autonomous driving domain controller, wherein the connected domain controller is provided with a first type of interface and a second type of interface; wherein, The first type of interface is electrically connected to the network switching chip and the lidar so as to input the communication protocol data used by the lidar to the network switching chip for conversion; The second type of interface is electrically connected to the network switching chip and the autonomous driving domain controller so as to send the communication protocol data converted by the network switching chip and used by the LiDAR to the autonomous driving domain controller.

3. The vehicle control system according to claim 2, characterized in that, The connected domain controller and the autonomous driving domain controller are also connected via a CAN bus to form a dual communication link between the connected domain controller and the autonomous driving domain controller together with the second type interface.

4. The vehicle control system according to claim 2, characterized in that, The first type of interface is an industrial Ethernet interface, and the second type of interface is an automotive Ethernet interface.

5. The vehicle control system according to claim 2, characterized in that, The physical connector used in the first type of interface is an automotive-grade connector.

6. The vehicle control system according to claim 2, characterized in that, The network switching chip is configured to use virtual LAN technology to establish a directed route between the first type of interface and the second type of interface.

7. The vehicle control system according to any one of claims 1 to 5, characterized in that, The communication module includes a cellular mobile communication unit and a V2X communication unit, and the network domain controller is equipped with a cellular mobile communication antenna interface and a V2X antenna interface; wherein... The cellular mobile communication unit is electrically connected to the cellular mobile communication antenna interface so that communication between the vehicle and the cloud can be realized through the cellular mobile communication antenna interface; The V2X communication unit is electrically connected to the V2X antenna interface so that communication between the vehicle and the external device can be realized through the V2X antenna interface.

8. The vehicle control system according to any one of claims 1 to 5, characterized in that, The network-connected domain controller is equipped with a CAN interface; wherein... The CAN interface is electrically connected to the data storage chip so as to store the collected CAN bus data of the vehicle chassis to the data storage chip. The data storage chip is electrically connected to the communication module so that the stored CAN bus data can be directly sent to the cloud via the communication module.

9. The vehicle control system according to any one of claims 1 to 5, characterized in that, It also includes integrated navigation, which is directly connected to the autonomous driving domain controller to send the vehicle's location data to the autonomous driving domain controller.

10. The vehicle control system according to any one of claims 1 to 5, characterized in that, The connected domain controller uses automotive-grade chips.

11. A network-connected domain controller, characterized in that, include: Communication modules, network switching chips, and data storage chips; among them, The communication module is configured to communicate with external devices and the cloud. The network switching chip is configured to convert network protocols; The data storage chip is configured to record and store the vehicle's operating data.

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