T-BOX for new energy light truck

Abstract

The invention discloses a T-BOX for a new energy light truck. Platform application of the T-BOX on the new energy light truck is achieved. A main chip of the T-BOX adopts a vehicle gauge level main chip with computing power exceeding a preset level, a controller protocol of an automobile open system architecture is adopted as a software development and communication standard for MCU side configuration of the T-BOX, and an open-source Linux system is adopted as a bottom software platform for module side configuration of the T-BOX; the module comprises a 5G communication module; the T-BOX adopts a 5G communication module to communicate with a cloud server, and adopts the Ethernet to be connected with an in-vehicle gateway; and the T-BOX is also connected with a cabin system and an advanced driver assistance system (ADAS) by adopting the Ethernet, and provides an OTA upgrading channel for the cabin system and the ADAS.

Description

Technical Field

[0001] The present application relates to the field of intelligent networked vehicles and vehicle-mounted communication technology, and in particular to a T-BOX for new energy light trucks. Background Art

[0002] T-BOX (Telematics Box, remote terminal communication module) is a product that integrates vehicle body network and wireless communication functions, designed to improve the intelligence and networking capabilities of vehicles. T-BOX is commonly found in passenger cars, but compared to passenger cars, the configuration level of vehicles in the new energy light truck market is usually lower. Although new energy light trucks, as important tools in logistics, transportation and other fields, also need to continuously improve their intelligence and networking levels to meet the growing needs of customers, in the actual market, due to limitations in cost, technology, market acceptance and other aspects, the T-BOX configuration of new energy light trucks is not ideal. Summary of the invention

[0003] In view of the above problems, this application provides a T-BOX for new energy light trucks, so that T-BOX can be applied as a platform on new energy light trucks. The specific solution is as follows:

[0004] The present application provides a T-BOX for a new energy light truck, wherein:

[0005] The main chip of the T-BOX adopts an automotive-grade main chip with a computing power exceeding the preset level. The MCU side configuration of the T-BOX adopts the controller protocol of the automotive open system architecture (i.e., CP AUTOSAR) as the standard for software development and communication. The module side configuration of the T-BOX adopts the open source Linux system (i.e., Open Linux system) as the underlying software platform;

[0006] The module includes a 5G communication module; the T-BOX uses the 5G communication module to communicate with the cloud server and uses Ethernet to connect to the in-vehicle gateway; the T-BOX also uses Ethernet to connect to the cockpit system and the advanced driver assistance system ADAS, providing an over-the-air download technology OTA upgrade channel for the cockpit system and ADAS.

[0007] In a possible implementation, the automotive-grade main chip with computing power exceeding a preset level is a Qualcomm platform automotive-grade main chip.

[0008] In one possible implementation, the 5G communication module is backward compatible with 4G, 3G and 2G networks.

[0009] In a possible implementation, the cockpit system is configured with a navigation function.

[0010] In a possible implementation, the module further includes an embedded multimedia card eMMC module with a capacity of 16G or 32G.

[0011] In a possible implementation, the T-BOX reserves at least one USB serial interface and at least one CAN serial interface.

[0012] In a possible implementation, the at least one CAN series interface is, for example, a variable rate controller area network CANFD interface.

[0013] In a possible implementation, the at least one USB serial interface is a USB 2.0 interface.

[0014] In a possible implementation, two diodes are introduced for each CAN series interface; the CANH pin and the CANL pin of each CAN series interface are respectively connected to the anode of a diode, and the cathodes of the two diodes are grounded; the CANH pin and the CANL pin are respectively a high level pin and a low level pin;

[0015] Three voltage-stabilizing diodes are introduced for each USB series interface; the USB_VBUS pin, USB_D+ pin, and USB_D- pin of each USB series interface are respectively connected to the cathode of a voltage-stabilizing diode, and the anodes of the three diodes are grounded; the USB_VBUS pin, USB_D+ pin, and USB_D- pin are the power pin, the positive pole of the differential signal, and the negative pole of the differential signal, respectively.

[0016] In a possible implementation, the T-BOX is configured with an emergency roadside assistance E-CALL function.

[0017] With the above technical solutions, the T-BOX provided in this application adopts a high-computing automotive-grade main chip, which can cope with the challenges of T-BOX in data processing and calculation; the MCU side and module side configurations adopt CP AUTOSAR and Open Linux systems respectively, which achieve standardized development, which is conducive to reducing development costs and improving development efficiency; thus, it meets the restrictions of cost, technology, market acceptance and other aspects. T-BOX is connected to the in-vehicle gateway via Ethernet to obtain vehicle data, and the 5G communication module uploads the vehicle data to the cloud server to realize remote monitoring of the vehicle; T-BOX also uses Ethernet to connect to the cockpit system and ADAS, providing an OTA upgrade channel for the cockpit system and ADAS. Users can upgrade the software without going to the 4S store, which improves the level of vehicle intelligence and networking. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the originals and elements are not necessarily drawn to scale.

[0019] Figure 1 A schematic diagram of the structure of a T-BOX for a new energy light truck provided in this application;

[0020] Figure 2 A schematic diagram of a CANFD interface protection circuit provided for this application;

[0021] Figure 3 A schematic diagram of a USB 2.0 interface protection circuit provided in this application. DETAILED DESCRIPTION

[0022] T-BOX (Telematics Box, remote terminal communication module) is a product that integrates the vehicle body network and wireless communication functions, and is a bridge for the car to communicate with the external network. It is usually installed under the dashboard of the car, which is convenient for connecting to the vehicle body network and can also ensure the stability and security of T-BOX.

[0023] T-BOX is usually based on Android or Linux system and has a built-in SIM (Subscriber Identity Module) card. Android or Linux system has strong stability and scalability and can support the operation of multiple application software. SIM card enables T-BOX to connect to the mobile network, realize vehicle-cloud integration, and provide car owners with rich Telematics services. Telematics is a compound word of telecommunications and information science. It is a technical system that combines telecommunications and information science. Its full Chinese name is "telematics technology".

[0024] Specifically, the working principle of T-BOX is as follows: T-BOX is connected to the vehicle body network through its internal interface, and collects vehicle data in the vehicle body network in real time, such as vehicle speed, fuel consumption, engine status, etc.; then, T-BOX uses the built-in wireless communication module and the communication function of the SIM card to send these vehicle data to the cloud server through the mobile network; after receiving the data, the cloud server will store, analyze and process it, and then send corresponding instructions or information to the car according to the analysis results; in this way, the car can perform corresponding operations according to the instructions of the cloud server, such as remote start, remote shutdown, remote positioning, etc., to provide car owners with rich Telematics services, which not only allow car owners to grasp the status of the vehicle anytime and anywhere, but also provide timely assistance and protection in emergency situations. Among them, the wireless communication module is, for example, 3G (Third Generation, third generation mobile communication technology), 4G (Fourth Generation, fourth generation mobile communication technology), 5G (Fifth Generation, fifth generation mobile communication technology) or Wi-Fi (Wireless Fidelity, wireless fidelity technology), etc.

[0025] T-BOX aims to improve the intelligence level and networking capabilities of vehicles, and its current configuration on passenger cars is relatively common. New energy light trucks refer to light trucks that use new energy such as batteries, hybrid power or fuel cells as power sources. The current vehicle configurations in the new energy light truck market often do not have the same high level of configuration compared to passenger cars. However, with the advancement of technology and the continuous development of the market, new energy light trucks also need to continuously improve their intelligence and networking levels to meet the growing customer demand. However, in the actual market, due to limitations in cost, technology, market acceptance and other aspects, the T-BOX configuration of new energy light trucks is not ideal.

[0026] Therefore, the embodiment of the present application provides a T-BOX for new energy light trucks, aiming to realize platform application of T-BOX on new energy light trucks (that is, integrating and optimizing T-BOX into the whole vehicle platform of new energy light trucks, making it a standardized and modular component), thereby supporting remote monitoring of vehicles, intelligent cockpit systems, and cockpit systems and ADAS (Advanced Driver Assistance Systems) (Over-The-Air, air download technology) upgrades.

[0027] The following is a detailed description of a T-BOX for new energy light trucks provided in an embodiment of the present application in conjunction with the accompanying drawings. A person of ordinary skill in the art will appreciate that, with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems. The embodiments described below are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0028] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and need not be used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, which is only to describe the distinction mode adopted by the objects of the same attributes when describing in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0029] As used in the specification of the present invention and the appended claims, the singular expressions "a", "an", "said", "above", "the" and "this" are intended to also include expressions such as "one or more", unless the context clearly indicates otherwise. It should also be understood that in the embodiments of the present invention, "one or more" refers to one, two or more than two; "and / or" describes the association relationship of associated objects, indicating that three relationships may exist; for example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone, wherein A and B may be singular or plural. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0030] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present invention. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0031] See also Figure 1, an embodiment of the present application provides a T-BOX for a new energy light truck, wherein:

[0032] The main chip of the T-BOX adopts an automotive-grade main chip with a computing power exceeding a preset level (i.e., a high-computing automotive-grade main chip), the MCU (Microcontroller Unit) side configuration of the T-BOX adopts CP AUTOSAR as the standard for software development and communication, and the module side configuration of the T-BOX adopts the Open Linux system as the underlying software platform;

[0033] The module includes a 5G communication module; the T-BOX uses the 5G communication module to communicate with the cloud server, and uses Ethernet to connect to the in-vehicle gateway (hereinafter referred to as the gateway); the T-BOX also uses Ethernet to connect to the cockpit system and ADAS, providing an OTA (Over-the-Air) upgrade channel for the cockpit system and ADAS.

[0034] The working principle of the embodiment of the present application is described in detail below:

[0035] In the architecture of T-BOX, the main chip, MCU side, and module side (module side refers to the components in T-BOX that are responsible for specific functional modules such as communication and data processing) are connected and interacted through specific interfaces or buses to jointly realize the various functions of T-BOX. As the core processor, the main chip is responsible for processing large amounts of data and complex computing tasks; the MCU side is responsible for controlling power management, accessing the vehicle CAN bus and other underlying operations; the module side is responsible for running the operating system and applications, providing network communication, data storage, user interaction and other functions. The close collaboration between the three enables T-BOX to operate efficiently and stably, providing intelligent networking services for vehicles.

[0036] An automotive-grade main chip refers to a main chip that is designed and manufactured specifically for automotive applications and meets the strict standards of the automotive industry. This type of chip has extremely high requirements in terms of performance, reliability, safety, etc. to adapt to the complex and changeable use environment of the car. The embodiment of the present application adopts an automotive-grade main chip to ensure the reliability and durability of T-BOX. Moreover, the embodiment of the present application requires that the automotive-grade main chip be a high-computing power chip to meet the needs of T-BOX for data processing and computing capabilities. In one possible implementation, the high-computing power automotive-grade main chip can, for example, adopt a Qualcomm platform automotive-grade main chip.

[0037] The MCU side uses CP AUTOSAR as the standard for software development and communication, that is, on the MCU side of T-BOX, AUTOSAR (AUTomotive Open System Architecture) CP (Controller Protocol) is used as the standard for software development and communication. Specifically, CP AUTOSAR is an important part of the AUTOSAR architecture. It defines the communication protocol between ECUs (Electronic Control Units), including data transmission, communication mechanisms, message formats, etc. By using CP AUTOSAR, communication between ECUs can be more efficient, reliable and secure, thereby improving the reliability and safety of the vehicle.

[0038] The operating system used on the module side is the Open Linux system (open source Linux system), that is, in the module part of T-BOX, the open source Linux system is used as the underlying software platform. The Open Linux system is an open source operating system with rich software resources and strong community support, which is convenient for developers to customize and optimize. Moreover, the Linux system has excellent performance in stability and security, which can ensure the stability and reliability of T-BOX during long-term operation.

[0039] As the hub of the vehicle's internal network, the gateway is responsible for aggregating, converting and distributing complex data from different systems of the vehicle (such as the engine management system, body control system, chassis control system, etc.). The gateway can identify and understand the communication protocols and data formats used by different systems, and then convert these data into a unified format, and then efficiently transmit them to the T-BOX or other systems that need these data via Ethernet. It can be seen that the way T-BOX uses Ethernet to connect to the gateway not only improves the speed and stability of data transmission, but also enables T-BOX to obtain various states and data of the vehicle more accurately. In one possible implementation, the Ethernet is Gigabit Ethernet.

[0040] The module includes a 5G communication module, that is, a 5G communication module refers to a communication module whose adopted communication technology standard is 5G. T-BOX takes advantage of the high speed and low latency of the 5G communication module to upload the real-time vehicle status monitoring data obtained by T-BOX through the gateway to the cloud server, so that the owner or fleet manager can view the real-time status of the vehicle including the current status, historical trajectory, fault information, etc. through a mobile phone or computer anytime and anywhere, and perform remote vehicle control and remote diagnosis, etc.; this cloud monitoring function not only improves the convenience of vehicle management, but also helps to timely discover and deal with potential safety hazards, and improve the safety and reliability of the vehicle. Moreover, the embodiment of the present application designs a 5G communication module that is backward compatible with 4G, 3G and 2G networks, so that T-BOX can realize real-time monitoring and data transmission of vehicle status in different network environments.

[0041] In one possible implementation, T-BOX also adopts special peripheral protection measures for the 5G communication module in hardware to protect the 5G communication module from various possible adverse factors, ensure its stable and reliable operation, and thus ensure the normal operation of T-BOX when using 5G communication functions.

[0042] In addition to communicating with the gateway, T-BOX is also connected to the cockpit system and ADAS via Ethernet, as described below:

[0043] The cockpit system is used to provide the drivers and passengers with a comfortable and convenient driving and riding environment as well as vehicle information display functions. For example, the cockpit system is used to provide the drivers and passengers with convenient operation experience, rich information interaction and comfortable riding environment by using various electronic devices (such as display screens, sensors, controllers, etc.) and software systems during the driving and parking process of the vehicle, thereby improving the comfort and pleasure of driving. Its functions are concentrated in human-computer interaction and environmental adjustment. For example, the instrument panel provides the driver with basic vehicle driving information such as vehicle speed, engine speed, fuel / power status, etc.; the central control screen provides navigation functions to help the driver plan routes, etc. If the cost permits, other multimedia entertainment functions can also be provided, such as playing music and videos; at the same time, if the cost permits, in-vehicle environmental control functions can also be provided, such as adjusting seat position, temperature, ventilation, etc.

[0044] ADAS is used to assist the driver in driving operations by using various sensors (such as millimeter-wave radar, cameras, etc.) and algorithms during vehicle driving, improving driving safety and comfort. Its functions focus on active safety, such as: ACC (Adaptive Cruise Control) helps the vehicle automatically maintain a safe distance from the vehicle in front, LKA (Lane Keeping Assist) ensures that the vehicle drives within the lane, and AEB (Autonomous Emergency Braking) automatically brakes when a collision risk is detected.

[0045] Since T-BOX uses Ethernet, a high-speed, high-capacity communication method, it can provide a more stable and fast OTA (Over-The-Air) upgrade channel for the entire vehicle, greatly reducing the risk of T-BOX upgrade failure. OTA upgrade allows vehicles to receive and install new software updates without physical contact, that is, new software versions, function updates, etc. can be pushed to the cockpit system and ADAS remotely through the network, without the need for manual and complex offline upgrade operations, and conveniently and quickly upgrade and optimize these two important vehicle systems, improving user experience and system performance. Through T-BOX, the navigation system in the cockpit system can be remotely upgraded OTA, so that users can obtain the latest software functions and performance optimization without going to the 4S store, maintaining the advanced nature of the cockpit system and the continuous optimization of user experience. Similarly, ADAS, including autonomous driving algorithms, sensor data processing algorithms, etc., can also be remotely upgraded OTA through T-BOX, so that users can obtain the latest software functions and performance optimization without going to the 4S store, which not only improves the accuracy and reliability of the intelligent driving system, but also ensures that the vehicle always meets the latest safety standards and regulatory requirements.

[0046] In a possible implementation, the module further includes an eMMC (embedded MultiMedia Card) module with a capacity of 16G or 32G.

[0047] Specifically, the eMMC module is a highly integrated storage device that tightly packages NAND flash memory and flash memory controller together, providing a simplified, plug-and-play storage solution for T-BOX. This modular design not only greatly reduces the complexity and development cost of the storage subsystem in embedded system design, but also improves the overall performance and reliability of the system.

[0048] In the eMMC module, NAND flash memory is used as a storage medium, providing large-capacity, high-speed data storage capabilities. The built-in flash memory controller is responsible for key functions such as data read and write operations, error detection and correction, thereby ensuring high data reliability and stability.

[0049] As an important bridge for vehicles to communicate with the outside world, T-BOX has an increasingly heavy task of data storage. The eMMC module, with its large storage capacity (such as 16G or 32G designed in the embodiment of this application), can fully meet the storage needs of T-BOX for various vehicle data, software update packages, etc. Specifically, vehicle data includes but is not limited to mileage, speed, location, engine status, fault diagnosis information, etc. These data are of great significance for vehicle performance monitoring, fault diagnosis, and accident tracing. The software update package ensures that the cockpit system and ADAS can obtain the latest software upgrades and security patches in a timely manner, thereby continuously improving the safety and intelligence level of the vehicle.

[0050] In addition, the eMMC module also supports high-speed data transmission, which makes the data processing inside the T-BOX faster and more efficient. When a large amount of data needs to be read or written quickly, the eMMC module can maintain stable performance without obvious delays or freezes. This efficient data processing capability is of great significance to improving the driving safety and riding comfort of the vehicle.

[0051] In summary, the eMMC module is the first choice for the memory in the T-BOX provided in the embodiment of the present application due to its simplified storage solution, high performance, high reliability and stability, and large storage capacity.

[0052] In summary, the T-BOX provided in the embodiment of the present application adopts a high-computing automotive-grade main chip, which can cope with the challenges of T-BOX in data processing and calculation; the MCU side and module side configurations adopt CP AUTOSAR and Open Linux systems respectively, which achieve standardized development, which is conducive to reducing development costs and improving development efficiency; thus, it meets the restrictions of cost, technology, market acceptance and other aspects. T-BOX is connected to the in-vehicle gateway via Ethernet to obtain vehicle data, and the 5G communication module uploads the vehicle data to the cloud server to realize remote monitoring of the vehicle; T-BOX also uses Ethernet to connect to the cockpit system and ADAS, providing an OTA upgrade channel for the cockpit system and ADAS. Users can upgrade the software without going to the 4S store, which improves the level of vehicle intelligence and networking.

[0053] In addition, based on any of the above-mentioned T-BOXs for new energy light trucks, in order to ensure the flexible expansion of T-BOX's future functions, T-BOX reserves at least one USB (Universal Serial Bus) series interface and at least one CAN (Controller Area Network) series interface.

[0054] In a possible implementation, the at least one CAN series interface is, for example, a CAN FD (CAN with Flexible Data-rate, variable rate controller area network) interface.

[0055] Specifically, CAN is a fieldbus based on a serial data communication protocol. The traditional CAN bus has a relatively low data transmission rate. For example, under the standard CAN2.0A and CAN2.0B protocols, the maximum transmission rate is usually 1Mbps (the actual rate may be lower in different application scenarios). This transmission rate is sufficient in some simple control scenarios that do not require high data volume and are not particularly strict in real-time requirements, such as the communication between basic engine control, lighting control and other functional modules in traditional cars.

[0056] CANFD is a CAN bus with a flexible data rate. It significantly improves the data transmission rate while maintaining compatibility with traditional CAN. The data transmission rate of CANFD can reach up to 8Mbps or even higher (depending on the hardware implementation and application environment), which enables it to transmit more data in the same time and is very suitable for application scenarios that require the transmission of large amounts of real-time data, such as automotive ADAS and battery management systems for electric vehicles.

[0057] In addition, at least one reserved CANFD interface complies with ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 standards.

[0058] Specifically, the ISO 11898 series of standards are important international specifications for controller area network (CAN) communications, of which ISO 11898-2:2016 specifies the physical layer characteristics of the high-speed CAN bus, including requirements for electrical characteristics, signal transmission characteristics, etc. For example, it clarifies the standard values ​​of key parameters such as the voltage range and signal transmission rate of the CAN bus under different working conditions.

[0059] The J2284 series of standards released by SAE (Society of Automotive Engineers) are also important references for the application of CAN bus in the automotive field. The series of standards from SAE J2284-1 to SAE J2284-5 provide detailed specifications for the application of CAN bus in the automotive environment in different aspects, such as the specific requirements for different models and different functional modules when connecting to the CAN bus, including communication protocols, data formats, transmission priorities, etc.

[0060] Compliance with these standards means that the reserved CAN bus follows the international and US automotive industry recognized specifications during design, manufacturing and application. This enables it to seamlessly connect and stably communicate with other CAN bus devices or systems that meet the same standards. For example, in automotive electronic systems, if other controllers, sensors or actuators also follow these standards, they can accurately exchange data through this reserved CAN bus, achieving collaborative work between different functional modules such as engine control, body control, and infotainment systems.

[0061] In a possible implementation, the at least one USB serial interface is a USB 2.0 interface.

[0062] Specifically, USB 2.0 is the second generation standard of USB technology. The standard theoretically supports a maximum transfer rate of up to 480Mbps (megabits per second), which is a significant improvement over its predecessor, USB 1.x, which usually only reached speeds of 12Mbps or less. However, it is worth noting that the actual transfer speed of USB 2.0 may be affected by many factors, including but not limited to the performance level of the connected device, the specific type of data being transferred, the system load condition, and the quality of the cable used.

[0063] In practical applications, the transfer speed of USB 2.0 is sufficient to meet most daily data transfer needs, including fast transfer of documents, pictures, audio and video files, etc. This speed increase makes USB 2.0 an ideal choice for connecting external storage devices (such as hard drives, flash drives, etc.) and various other peripherals. In addition, USB 2.0 also enhances power management capabilities, providing a more stable power supply for connected devices, further improving the overall performance and reliability of the system.

[0064] Compared with USB 1.x, USB 2.0 not only achieved a qualitative leap in speed, but also made great efforts in compatibility. It ensures backward compatibility with earlier USB devices, so that users do not need to worry about the connection between new and old devices. This feature has greatly promoted the popularization and application of USB technology, making it an indispensable part of today's electronic device connection and data transmission field.

[0065] In summary, USB 2.0, with its significantly improved transmission speed, wide compatibility and enhanced power management capabilities, provides efficient and reliable solutions for various data transmission needs, and promotes the continuous advancement of electronic device connection technology.

[0066] In a possible implementation, both the reserved CAN series interface and the USB series interface adopt an interface protection solution.

[0067] like Figure 2 As shown, two diodes are introduced for each CAN serial interface (see Figure 2 T301 module in the CAN bus); the CANH pin (high level pin of the CAN bus) and CANL pin (low level pin of the CAN bus) of each CAN series interface are connected to the anode of a diode, and the cathodes of the two diodes are grounded. Specifically, when the voltage on the CANH pin is too high, the corresponding diode will be turned on and discharge the excess voltage to the ground, thereby protecting the circuit; similarly, when the voltage on the CANL pin rises abnormally, the corresponding diode will also be turned on to play a protective role. It should be noted that Figure 2 The parameter sizes of the components in the CAN series interface indicated in the figure are only used as an example and are not limiting.

[0068] like Figure 3 As shown, three Zener diodes are introduced for each USB series interface; the USB_VBUS pin (power pin), USB_D+ pin (positive pole of differential signal), and USB_D- pin (negative pole of differential signal) of each USB series interface are respectively connected to the cathode of a Zener diode, and the anodes of the three diodes are grounded. Specifically, by connecting the USB_VBUS pin to the cathode of a Zener diode, and the anode of the Zener diode is grounded, when the voltage on the USB_VBUS pin fluctuates, the Zener diode will keep the voltage across it stable, thereby providing a stable power supply for the USB; by connecting the USB_D+ pin and the USB_D- pin to the cathodes of the other two Zener diodes, and the anodes of the two Zener diodes are also grounded, when the voltage on the USB_D+ or USB_D- pin fluctuates, the corresponding Zener diode will stabilize the voltage, thereby ensuring the stability and accuracy of data transmission. It should be noted that Figure 3The parameter sizes of the components in the USB series interface indicated in the figure are only used as an example and are not limiting.

[0069] In addition, in order to ensure the life safety of new energy light truck users, any of the above-mentioned T-BOXs for new energy light trucks integrates the E-CALL (Emergency Call, emergency roadside assistance) function widely used in passenger cars. The addition of this function is intended to provide assistance quickly and effectively when the vehicle encounters a serious accident or faces other emergency situations. Specifically, when the vehicle collides, rolls over or other preset emergency conditions, the T-BOX can automatically detect and trigger the emergency rescue signal, and the rescue process can be started without user intervention. At the same time, the embodiment of the present application may also provide a manual trigger option, allowing the user to start the E-CALL function by themselves when they deem it necessary, to ensure that timely help can be obtained in any emergency situation.

[0070] After the emergency rescue signal is triggered, T-BOX will immediately collect and send a series of key information to the rescue agency, including but not limited to the current location of the vehicle, the type of accident, the vehicle status, and possible injuries to the passengers. This information is crucial for the rescue agency, as it can help rescuers quickly locate the accident scene, understand the accident situation, and formulate the most effective rescue plan accordingly. In this way, we can ensure that users can quickly obtain necessary assistance in an emergency, minimize injuries and losses, and thus protect the lives of users.

[0071] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the embodiments of the present application. Therefore, the embodiments of the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A T-BOX for new energy light trucks, characterized by: The main chip of the T-BOX adopts a car-grade main chip with a computing power exceeding the preset level. The MCU side configuration of the T-BOX adopts the controller protocol of the automotive open system architecture as the standard for software development and communication. The module side configuration of the T-BOX adopts the open source Linux system as the underlying software platform. The module includes a 5G communication module; the T-BOX uses the 5G communication module to communicate with the cloud server and uses Ethernet to connect to the in-vehicle gateway; the T-BOX also uses Ethernet to connect to the cockpit system and the advanced driver assistance system ADAS, providing an over-the-air download technology OTA upgrade channel for the cockpit system and ADAS.

2. The T-BOX for new energy light trucks according to claim 1, characterized in that: The automotive-grade main chip whose computing power exceeds the preset level is the automotive-grade main chip of the Qualcomm platform.

3. The T-BOX for new energy light trucks according to claim 1, characterized in that: The 5G communication module is backward compatible with 4G, 3G and 2G networks.

4. The T-BOX for new energy light trucks according to claim 1, characterized in that: The cockpit system is equipped with a navigation function.

5. The T-BOX for new energy light trucks according to claim 1, characterized in that: The module also includes an embedded multimedia card eMMC module with a capacity of 16G or 32G.

6. The T-BOX for new energy light trucks according to claim 1, characterized in that: The T-BOX reserves at least one USB serial interface and at least one CAN serial interface.

7. The T-BOX for new energy light trucks according to claim 6, characterized in that: The at least one CAN series interface is, for example, a variable rate controller area network CANFD interface.

8. The T-BOX for new energy light trucks according to claim 6, characterized in that: The at least one USB serial interface is a USB 2.0 interface.

9. The T-BOX for new energy light trucks according to claim 6, characterized in that: Two diodes are introduced for each CAN series interface; the CANH pin and CANL pin of each CAN series interface are respectively connected to the anode of a diode, and the cathodes of the two diodes are grounded; the CANH pin and CANL pin are respectively a high level pin and a low level pin; Three voltage-stabilizing diodes are introduced for each USB series interface; the USB_VBUS pin, USB_D+ pin, and USB_D- pin of each USB series interface are respectively connected to the cathode of a voltage-stabilizing diode, and the anodes of the three diodes are grounded; the USB_VBUS pin, USB_D+ pin, and USB_D- pin are the power pin, the positive pole of the differential signal, and the negative pole of the differential signal, respectively.

10. The T-BOX for new energy light trucks according to claim 1, characterized in that: The T-BOX is equipped with an emergency roadside assistance E-CALL function.

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