T-box for new-energy light truck

Abstract

Provided in the present disclosure is a T-BOX for a new-energy light truck, which implements the platform-based application of a T-BOX on a new-energy light truck. A main chip of the T-BOX is an automotive-grade main chip with a computing power exceeding a preset level; an MCU side of the T-BOX is configured to use a controller protocol of an automotive open system architecture as a standard for software development and communication, and a module side of the T-BOX is configured to use an open-source Linux system as an underlying software platform; a module comprises a 5G communication module; the T-BOX communicates with a cloud server by means of the 5G communication module, and is connected to an in-vehicle gateway by means of the Ethernet; and the T-BOX is further connected to a cockpit system and an advanced driver assistance system (ADAS) by means of the Ethernet, so as to provide an over-the-air (OTA) upgrade channel for the cockpit system and the ADAS.

Description

A T-BOX for new energy light trucks

[0001] Cross-references to related applications

[0002] This disclosure is based on and claims priority to Chinese Patent Application No. 2024116239374, filed on November 13, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the fields of intelligent connected vehicles and vehicle communication technology, and in particular to a T-BOX for new energy light trucks. Background Technology

[0004] A T-BOX (Telematics Box, remote terminal communication module) is a product that integrates vehicle network and wireless communication functions, aiming to improve the vehicle's intelligence and connectivity capabilities. T-BOX configurations are common in passenger vehicles, but the configuration level of vehicles in the new energy light truck market is generally lower compared to passenger vehicles. Although new energy light trucks are important tools in logistics and transportation, and also need to continuously improve their intelligence and connectivity to meet the growing customer demands, in the actual market, due to limitations in cost, technology, and market acceptance, the T-BOX configuration of new energy light trucks is not ideal. Summary of the Invention

[0005] In view of the above problems, this disclosure provides a T-BOX for new energy light trucks, enabling the platform-based application of T-BOX on new energy light trucks. The specific solution is as follows:

[0006] This disclosure provides a T-BOX for new energy light trucks, wherein:

[0007] The main chip of the T-BOX is an automotive-grade main chip with computing power exceeding a 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.

[0008] 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 with the in-vehicle gateway; the T-BOX also uses Ethernet to connect with the cockpit system and the advanced driver assistance system (ADAS), providing an over-the-air (OTA) upgrade channel for the cockpit system and ADAS.

[0009] In some embodiments, the automotive-grade main chip with computing power exceeding a preset level is a Qualcomm platform automotive-grade main chip.

[0010] In some embodiments, the 5G communication module is backward compatible with 4G, 3G and 2G networks.

[0011] In some embodiments, the cockpit system is configured with navigation functionality.

[0012] In some embodiments, the module further includes an embedded multimedia card eMMC module with a capacity of 16G or 32G.

[0013] In some embodiments, the T-BOX reserves at least one USB interface and at least one CAN interface.

[0014] In some embodiments, the at least one CAN interface is, for example, a Variable Rate Controller Area Network (CANFD) interface.

[0015] In some embodiments, the at least one USB interface is a USB 2.0 interface.

[0016] In some embodiments, two diodes are introduced for each CAN series interface; the CANH pin and CANL pin of each CAN series interface are each 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.

[0017] Three Zener 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 each connected to the cathode of a Zener diode, and the anodes of the three diodes are grounded; the USB_VBUS pin, USB_D+ pin, and USB_D- pin are the power supply pin, the positive terminal of the differential signal, and the negative terminal of the differential signal, respectively.

[0018] In some embodiments, the T-BOX is configured with an emergency roadside assistance E-CALL function.

[0019] By employing the aforementioned technical solutions, the T-BOX disclosed herein utilizes a high-performance automotive-grade main chip, capable of addressing the challenges of data processing and computation within the T-BOX. The MCU side and module side are configured with CP AUTOSAR and Open Linux systems respectively, achieving standardized development, which helps reduce development costs and improve development efficiency. This satisfies limitations in cost, technology, and market acceptance. The T-BOX connects to the in-vehicle gateway via Ethernet to acquire vehicle data, which is then uploaded to a cloud server via a 5G communication module, enabling remote vehicle monitoring. The T-BOX also connects to the cockpit system and ADAS via Ethernet, providing an OTA upgrade channel for these systems. Users can upgrade software without visiting a 4S store, enhancing the vehicle's intelligence and connectivity. Attached Figure Description

[0020] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote 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.

[0021] Figure 1 is a schematic diagram of a T-BOX structure for a new energy light truck provided in this disclosure;

[0022] Figure 2 is a schematic diagram of a CANFD interface protection circuit provided in this disclosure;

[0023] Figure 3 is a schematic diagram of a USB 2.0 interface protection circuit provided in this disclosure. Detailed Implementation

[0024] The T-BOX (Telematics Box) is a product that integrates vehicle network and wireless communication functions, serving as a bridge for communication between the vehicle and external networks. It is typically installed below the vehicle's dashboard, a location that facilitates connection to the vehicle network while ensuring the T-BOX's stability and security.

[0025] T-BOX systems are typically based on Android or Linux and include a built-in SIM (Subscriber Identity Module) card. Android and Linux systems offer strong stability and scalability, supporting the operation of various applications. The SIM card enables T-BOX to connect to mobile networks, achieving vehicle-cloud integration and providing car owners with a wealth of Telematics services. Telematics is a portmanteau of telecommunications and information science, a technological system combining these two fields; its full Chinese name is "remote information processing technology."

[0026] Specifically, the T-BOX works as follows: The T-BOX connects to the vehicle's network via its internal interface, collecting real-time vehicle data such as speed, fuel consumption, and engine status. Then, using its built-in wireless communication module and SIM card, the T-BOX transmits this vehicle data to a cloud server via the mobile network. Upon receiving the data, the cloud server stores, analyzes, and processes it, then sends corresponding commands or information to the vehicle based on the analysis results. This allows the vehicle to perform actions according to the cloud server's commands, such as remote start, remote shutdown, and remote location tracking, providing owners with a wealth of telematics services. These services not only allow owners to monitor their vehicle's status anytime, anywhere, but also provide timely assistance and support in emergencies. The wireless communication module can be, for example, 3G (Third Generation), 4G (Fourth Generation), 5G (Fifth Generation), or Wi-Fi (Wireless Fidelity).

[0027] T-BOX aims to enhance the intelligence and connectivity of vehicles, and its configuration is currently quite common in passenger cars. New energy light trucks refer to light-duty trucks that use new energy sources such as batteries, hybrid power, or fuel cells as their power source. Currently, the configuration of new energy light trucks in the market is often not at the same level as that of passenger cars. However, with technological advancements and continuous market development, new energy light trucks also need to continuously improve their intelligence and connectivity to meet the growing customer demands. But in the actual market, due to limitations in cost, technology, and market acceptance, the T-BOX configuration of new energy light trucks is not ideal.

[0028] Therefore, this disclosure provides a T-BOX for new energy light trucks, aiming to enable the T-BOX to be applied on a platform in new energy light trucks (that is, to integrate and optimize the T-BOX into the vehicle platform of the new energy light truck, making it a standardized and modular component), thereby supporting remote vehicle monitoring, intelligent cockpit system, and over-the-air upgrades of the cockpit system and ADAS (Advanced Driver Assistance Systems).

[0029] The following detailed description, with reference to the accompanying drawings, of a T-BOX for new energy light trucks provided in this disclosure. Those skilled in the art will recognize that, with technological advancements and the emergence of new scenarios, the technical solutions provided in this disclosure are also applicable to similar technical problems. The embodiments described below are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms are interchangeable where appropriate; this is merely a way of distinguishing objects with the same properties in the description of embodiments of this disclosure. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, so that a process, method, system, product, or apparatus that comprises a series of elements is not necessarily limited to those elements but may include other elements not expressly listed or inherent to those processes, methods, products, or apparatuses.

[0031] As used in the specification and appended claims of this invention, the singular expressions “a,” “an,” “the,” “the,” “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 embodiments of the invention, “one or more” means one, two, or more; “and / or” describes the relationship between related objects, indicating that three relationships may exist; for example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character “ / ” generally indicates that the preceding and following related objects are in an “or” relationship.

[0032] References to "one embodiment" or "some embodiments" as used in this specification mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the invention. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless otherwise specifically emphasized.

[0033] Referring to Figure 1, an embodiment of this disclosure provides a T-BOX for new energy light trucks, wherein:

[0034] The main chip of the T-BOX is an automotive-grade main chip with computing power exceeding a preset level (i.e., a high-computing-power automotive-grade main chip). The MCU (Microcontroller Unit) side of the T-BOX is configured to use CP AUTOSAR as the standard for software development and communication. The module side of the T-BOX is configured to use the Open Linux system as the underlying software platform.

[0035] 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.

[0036] The working principle of the embodiments of this disclosure will be described in detail below:

[0037] In the T-BOX architecture, the main chip, the MCU side, and the module side (the module side refers to the components in the T-BOX responsible for specific functional modules such as communication and data processing) are connected and interact through specific interfaces or buses to jointly realize the various functions of the T-BOX. The main chip, as the core processor, is responsible for processing large amounts of data and complex computational tasks; the MCU side is responsible for controlling power management and connecting to the vehicle's CAN bus, among other low-level operations; and the module side is responsible for running the operating system and applications, providing functions such as network communication, data storage, and user interaction. This close collaboration between the three enables the T-BOX to operate efficiently and stably, providing intelligent connected services for vehicles.

[0038] Automotive-grade main chips refer to main chips designed and manufactured specifically for automotive applications and meeting the stringent standards of the automotive industry. These chips have extremely high requirements in terms of performance, reliability, and security to adapt to the complex and ever-changing operating environment of automobiles. This disclosure embodiment uses an automotive-grade main chip to ensure the reliability and durability of the T-BOX. Furthermore, this disclosure embodiment requires that the automotive-grade main chip be a high-computing-power chip to meet the T-BOX's data processing and computing power requirements. In some embodiments, the high-computing-power automotive-grade main chip may, for example, be a Qualcomm platform automotive-grade main chip.

[0039] On the MCU side, CP AUTOSAR is used as the standard for software development and communication. Specifically, on the T-BOX's MCU side, the CP (Controller Protocol) of AUTOSAR (Automotive Open System Architecture) is used as the standard for software development and communication. CP AUTOSAR is a crucial component of the AUTOSAR architecture, defining the communication protocol between ECUs (Electronic Control Units), including specifications for data transmission, communication mechanisms, and message formats. By using CP AUTOSAR, communication between ECUs can be more efficient, reliable, and secure, thereby improving vehicle reliability and safety.

[0040] The operating system used on the module side is Open Linux (an open-source Linux system). This means that the T-BOX module uses the open-source Linux system as its underlying software platform. Open Linux is an open-source operating system with abundant software resources and strong community support, making it easy for developers to customize and optimize. Furthermore, Linux has excellent performance in terms of stability and security, ensuring the stability and reliability of the T-BOX during long-term operation.

[0041] As the central hub of the vehicle's internal network, the gateway is responsible for aggregating, converting, and distributing complex data from various vehicle systems (such as the engine management system, body control system, and chassis control system). The gateway can identify and understand the communication protocols and data formats used by different systems, then convert this data into a unified format before efficiently transmitting it via Ethernet to the T-BOX or other systems that require this data. Therefore, using an Ethernet connection to the gateway in the T-BOX not only improves the speed and stability of data transmission but also enables the T-BOX to more accurately acquire various vehicle statuses and data. In some embodiments, this Ethernet is Gigabit Ethernet.

[0042] The module includes a 5G communication module, which refers to a communication module using the 5G communication technology standard. T-BOX leverages the high speed and low latency advantages of the 5G communication module to upload real-time vehicle status monitoring data obtained by T-BOX through a gateway to a cloud server. This allows vehicle owners or fleet managers to view real-time vehicle status, including current status, historical trajectories, and fault information, anytime and anywhere via mobile phone or computer, and to perform remote vehicle control and remote diagnostics. This cloud monitoring function not only improves the convenience of vehicle management but also helps to promptly identify and address potential safety hazards, improving vehicle safety and reliability. Furthermore, the 5G communication module in this embodiment is backward compatible with 4G, 3G, and 2G networks, enabling T-BOX to achieve real-time vehicle status monitoring and data transmission in different network environments.

[0043] In some embodiments, T-BOX also employs specialized peripheral protection measures for the 5G communication module in terms of hardware to protect the 5G communication module from various possible adverse factors, ensuring its stable and reliable operation, thereby guaranteeing the normal operation of T-BOX when utilizing 5G communication functions.

[0044] In addition to communicating with the gateway, the T-BOX is also connected to the cockpit system and ADAS via Ethernet, as described below:

[0045] The cockpit system provides a comfortable and convenient driving and riding environment for occupants, as well as vehicle information display functions. For example, during vehicle movement and parking, the cockpit system utilizes various electronic devices (such as displays, sensors, and controllers) and software systems to provide occupants with a convenient operating experience, rich information interaction, and a comfortable riding environment, enhancing driving comfort and enjoyment. Its functions focus on human-machine interaction and environmental control. For instance, the instrument panel provides the driver with basic vehicle driving information such as vehicle speed, engine speed, and fuel / battery status; the central control screen provides navigation functions to help the driver plan routes. Where cost permits, other multimedia entertainment functions, such as playing music and videos, can also be provided; and, where cost allows, in-vehicle environmental control functions, such as adjusting seat position, temperature, and ventilation, can also be provided.

[0046] ADAS (Advanced Driver Assistance Systems) utilizes various sensors (such as millimeter-wave radar and cameras) and algorithms to assist drivers in driving operations, 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 the vehicle stays within its lane; and AEB (Autonomous Emergency Braking) automatically brakes when a collision risk is detected.

[0047] Because the T-BOX uses Ethernet, a high-speed, high-capacity communication method, it provides a more stable and faster OTA (Over-The-Air) upgrade channel for the entire vehicle, significantly reducing the risk of T-BOX upgrade failure. OTA upgrades allow vehicles to receive and install new software updates without physical contact. New software versions and feature updates can be remotely pushed to the cockpit system and ADAS via the network, eliminating the need for complex manual offline upgrades. This facilitates convenient and quick upgrades and optimizations of these two important in-vehicle systems, improving user experience and system performance. Through the T-BOX, the navigation system and other components within the cockpit system can be remotely upgraded via OTA, allowing users to obtain the latest software features and performance optimizations without visiting a dealership, maintaining the cockpit system's advanced capabilities and continuously optimizing the user experience. Similarly, ADAS, including autonomous driving algorithms and sensor data processing algorithms, can also be remotely upgraded via OTA through the T-BOX, allowing users to obtain the latest software features and performance optimizations without visiting a dealership. This 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.

[0048] In some embodiments, the module further includes an eMMC (embedded Multi Media Card) module with a capacity of 16G or 32G.

[0049] Specifically, the eMMC module is a highly integrated storage device that tightly encapsulates NAND flash memory and a flash controller, providing T-BOX with a simplified, plug-and-play storage solution. This modular design not only significantly 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.

[0050] In eMMC modules, NAND flash memory serves as the storage medium, providing high-capacity, high-speed data storage capabilities. The built-in flash controller is responsible for critical functions such as data read / write operations, error detection and correction, thereby ensuring high data reliability and stability.

[0051] As a crucial bridge for vehicle communication with the outside world, the T-BOX bears an increasingly heavy data storage burden. The eMMC module, with its large storage capacity (such as the 16G or 32G designed in this embodiment), can fully meet the T-BOX's storage needs for various vehicle data, software update packages, and more. Specifically, vehicle data includes, but is not limited to, mileage, speed, location, engine status, and fault diagnosis information. This data is crucial for vehicle performance monitoring, fault diagnosis, and accident tracing. Software update packages ensure that the cockpit system and ADAS receive the latest software upgrades and security patches in a timely manner, thereby continuously improving the vehicle's safety and intelligence levels.

[0052] Furthermore, the eMMC module supports high-speed data transmission, making data processing within the T-BOX faster and more efficient. When needing to quickly read or write large amounts of data, the eMMC module maintains stable performance without noticeable delays or stuttering. This efficient data processing capability is crucial for improving vehicle driving safety and passenger comfort.

[0053] In summary, eMMC modules, with their advantages of simplified storage solutions, high performance, high reliability and stability, and large storage capacity, are the preferred storage option for the T-BOX provided in this disclosure embodiment.

[0054] In summary, the T-BOX provided in this embodiment adopts a high-performance automotive-grade main chip, capable of addressing the challenges of data processing and computation in T-BOX. The MCU side and module side are configured with CP AUTOSAR and Open Linux systems respectively, achieving standardized development, which helps reduce development costs and improve development efficiency. Thus, it meets the limitations of cost, technology, and market acceptance. The T-BOX connects to the in-vehicle gateway via Ethernet to obtain vehicle data, which is then uploaded to the cloud server by the 5G communication module, enabling remote vehicle monitoring. The T-BOX also connects to the cockpit system and ADAS via Ethernet, providing an OTA upgrade channel for the cockpit system and ADAS. Users can upgrade software without visiting a 4S store, improving the vehicle's intelligence and connectivity.

[0055] In addition, based on any of the above-mentioned T-BOXs for new energy light trucks, to ensure the flexible expansion of the T-BOX's future functions, the T-BOX reserves at least one USB (Universal Serial Bus) interface and at least one CAN (Controller Area Network) interface.

[0056] In some embodiments, the at least one CAN interface is, for example, one CANFD (CAN with Flexible Data-rate) interface.

[0057] Specifically, CAN is a fieldbus based on a serial data communication protocol. Traditional CAN bus data transmission rates are relatively low. For example, under the standard CAN 2.0A and CAN 2.0B protocols, the maximum transmission rate is typically 1 Mbps (the actual rate may be lower depending on the application scenario). This transmission rate is sufficient for some simple control scenarios where the data volume requirements are not high and the real-time requirements are not particularly strict, such as communication between basic functional modules in traditional automobiles, such as engine control and lighting control.

[0058] CANFD is a CAN bus with flexible data rates. While maintaining compatibility with traditional CAN, it significantly improves data transmission rates. CANFD's data transmission rates can reach up to 8 Mbps or even higher (depending on hardware implementation and application environment), enabling it to transmit more data in the same amount of time. This makes it ideal for applications requiring the transmission of large amounts of real-time data, such as automotive ADAS and electric vehicle battery management systems.

[0059] In addition, at least one CANFD interface is reserved that conforms to ISO 11898-2:2016 and SAE J2284-1 to SAE J2284-5 standards.

[0060] Specifically, the ISO 11898 series of standards are important international specifications for Controller Area Network (CAN) communication. Among them, ISO 11898-2:2016 specifies the physical layer characteristics of the high-speed CAN bus, including requirements for electrical characteristics and signal transmission characteristics. For example, it clarifies the standard values ​​for key parameters such as voltage range and signal transmission rate of the CAN bus under different operating conditions.

[0061] The SAE (Society of Automotive Engineers) J2284 series of standards is also an important reference for CAN bus applications in the automotive field. From SAE J2284-1 to SAE J2284-5, these standards provide detailed specifications for the application of CAN bus in the automotive environment in various aspects. For example, they may cover the specific requirements for different vehicle models and functional modules connecting to the CAN bus, including communication protocols, data formats, and transmission priorities.

[0062] Compliance with these standards means that the reserved CAN bus follows internationally and US automotive industry-recognized specifications in its design, manufacturing, and application. This enables seamless interfacing and stable communication with other CAN bus devices or systems that conform to the same standards. For example, in automotive electronic systems, if other controllers, sensors, or actuators also conform to these standards, they can exchange data accurately and reliably through this reserved CAN bus, enabling collaborative operation between different functional modules such as engine control, body control, and infotainment systems.

[0063] In some embodiments, the at least one USB series interface is a USB 2.0 interface.

[0064] Specifically, USB 2.0 is the second generation standard of USB technology. Theoretically, this standard supports a maximum transfer rate of up to 480 Mbps (megabits per second), a significant improvement over its predecessor, USB 1.x, which typically only achieved speeds of 12 Mbps or lower. However, it's important to note that the actual transfer speed of USB 2.0 can be affected by various factors, including but not limited to the performance level of the connected device, the specific type of data being transferred, system load, and the quality of the cable used.

[0065] In practical applications, the transfer speed of USB 2.0 is sufficient to meet most daily data transfer needs, including the fast transfer of documents, pictures, audio, and video files. This speed improvement makes USB 2.0 an ideal choice for connecting external storage devices (such as hard drives and flash drives) and various other peripherals. Furthermore, USB 2.0 enhances power management capabilities, providing a more stable power supply to connected devices, further improving the overall performance and reliability of the system.

[0066] Compared to USB 1.x, USB 2.0 not only achieved a qualitative leap in speed but also made significant efforts in compatibility. It ensured backward compatibility with earlier USB devices, eliminating concerns about connectivity issues between older and newer devices. This feature greatly promoted the widespread adoption of USB technology, making it an indispensable part of today's electronic device connectivity and data transfer.

[0067] In conclusion, USB 2.0, with its significantly improved transmission speed, broad compatibility, and enhanced power management capabilities, provides an efficient and reliable solution for various data transmission needs, driving the continuous advancement of electronic device connectivity technologies.

[0068] In some embodiments, both the reserved CAN series interfaces and USB series interfaces employ interface protection schemes.

[0069] As shown in Figure 2, two diodes are introduced for each CAN series interface (see module T301 in Figure 2). 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 each connected to the anode of a diode, and the cathodes of both diodes are grounded. Specifically, when the voltage on the CANH pin is too high, the corresponding diode will conduct, discharging the excess voltage to ground, thus protecting the circuit. Similarly, when the voltage on the CANL pin rises abnormally, the corresponding diode will also conduct, providing protection. It should be noted that the component parameters shown in Figure 2 for this CAN series interface are only an example and are not limiting.

[0070] As shown in Figure 3, three Zener diodes are introduced for each USB series interface. The USB_VBUS pin (power pin), USB_D+ pin (positive terminal of differential signal), and USB_D- pin (negative terminal of differential signal) of each USB series interface are each connected to the cathode of a Zener diode, and the anodes of all three diodes are grounded. Specifically, by connecting the USB_VBUS pin to the cathode of a Zener diode with its anode grounded, the Zener diode will maintain a stable voltage across it when the voltage on the USB_VBUS pin fluctuates, thus providing a stable power supply for the USB. Similarly, by connecting the USB_D+ and USB_D- pins to the cathodes of two other Zener diodes, with their anodes also grounded, the corresponding Zener diodes will stabilize the voltage when the voltage on either the USB_D+ or USB_D- pin fluctuates, ensuring the stability and accuracy of data transmission. It should be noted that the component parameters shown in Figure 3 for this USB series interface are merely an example and are not limiting.

[0071] Furthermore, to ensure the safety of users of new energy light trucks, the aforementioned T-BOX for new energy light trucks integrates the E-CALL (Emergency Call) function, widely used in passenger vehicles. This function aims to provide rapid and effective assistance when a vehicle encounters a serious accident or other emergency. Specifically, when a vehicle experiences a collision, rollover, or other preset emergency situation, the T-BOX can automatically detect and trigger an emergency rescue signal, initiating the rescue process without user intervention. Simultaneously, this embodiment also provides a manual triggering option, allowing users to activate the E-CALL function when deemed necessary, ensuring timely assistance in any emergency.

[0072] Once an emergency rescue signal is triggered, the T-BOX immediately collects and sends a series of critical information to the rescue organization, including but not limited to the vehicle's current location, accident type, vehicle condition, and potential occupant injuries. This information is crucial for the rescue organization, enabling them to quickly locate the accident scene, understand the situation, and formulate the most effective rescue plan. In this way, we can ensure that users can quickly receive necessary assistance in emergency situations, minimizing injury and loss, and thus protecting their lives.

[0073] The above description of the disclosed embodiments enables those skilled in the art to make or use this disclosure. Various modifications to these embodiments will be readily 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 disclosed herein. Therefore, the embodiments of this disclosure are not to be limited to the embodiments shown herein, but are to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A T-BOX for new energy light trucks, wherein: The main chip of the T-BOX is an automotive-grade main chip with computing power exceeding a 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 with the in-vehicle gateway; the T-BOX also uses Ethernet to connect with the cockpit system and the advanced driver assistance system (ADAS), providing an over-the-air (OTA) upgrade channel for the cockpit system and ADAS.

2. The T-BOX for a new energy light truck according to claim 1, wherein The automotive-grade main chip with computing power exceeding a preset level is a Qualcomm platform automotive-grade main chip.

3. The T-BOX for a new energy light truck according to claim 1, wherein The 5G communication module is backward compatible with 4G, 3G and 2G networks.

4. The T-BOX for a new energy light truck according to claim 1, wherein The cockpit system is equipped with navigation functionality.

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

6. The T-BOX for a new energy light truck according to claim 1, wherein The T-BOX is equipped with at least one USB interface and at least one CAN interface.

7. The new energy light truck T-BOX according to claim 6, wherein The at least one CAN interface is, for example, a variable rate controller local area network (CANFD) interface.

8. The T-BOX for a new energy light truck according to claim 6, wherein The at least one USB series interface is a USB 2.0 interface.

9. The T-BOX for a new energy light truck according to claim 6, wherein Two diodes are introduced for each CAN series interface; the CANH pin and CANL pin of each CAN series interface are each connected to the anode of a diode, and the cathodes of the two diodes are grounded; the CANH pin and CANL pin are respectively the high-level pin and the low-level pin. Three Zener 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 each connected to the cathode of a Zener diode, and the anodes of the three diodes are grounded; the USB_VBUS pin, USB_D+ pin, and USB_D- pin are the power supply pin, the positive terminal of the differential signal, and the negative terminal of the differential signal, respectively. 10.The T-BOX for new energy light truck according to claim 1, wherein The T-BOX is equipped with an emergency roadside assistance E-CALL function.

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