A communication terminal of an oil-electric two-wheeled vehicle based on a localized hardware platform

Abstract

The utility model discloses a kind of oil-electric two-wheeled vehicle communication terminals based on localization hardware platform, including main control MCU unit, 4G communication and positioning unit, vehicle interface unit and bluetooth unit, the main control MCU unit includes main control chip U7A;The 4G communication and positioning unit includes communication module U5A, communication module U5B, network access chip U6 and USIM interface chip U20, the main control chip U7A and the USIM interface chip U20 are electrically connected with the communication module U5A respectively, the network access chip U6 is electrically connected with the communication module U5B.The utility model discloses a kind of oil-electric two-wheeled vehicle communication terminals based on localization hardware platform, using national production or domestic leading main control MCU and 4G communication module, integrated multi-mode positioning, double mode vehicle bus access, low-power power management and rich extension interface, effectively improve the security, economy and applicability of terminal.

Description

Technical Field

[0001] This utility model belongs to the field of communication technology for hybrid electric two-wheeled vehicles, specifically relating to a communication terminal for hybrid electric two-wheeled vehicles based on a domestically produced hardware platform. Background Technology

[0002] With the rapid development of the two-wheeled vehicle industry, especially the rise of intelligent connected vehicles, T-Boxes, as an important channel connecting vehicles with the outside world, are gradually being applied from the automotive field to the two-wheeled vehicle sector. Users' needs for two-wheeled vehicles are no longer limited to mere transportation; they are pursuing innovative experiences brought by technology, such as obtaining vehicle information through smart terminals and unlocking vehicles via Bluetooth. Advances in communication and network technologies have driven the improvement of the intelligent connectivity of two-wheeled vehicles; however, the early development of intelligent terminals for two-wheeled vehicles largely relied on foreign technological solutions.

[0003] While most two-wheeled vehicle communication terminals are now intelligent, possessing functions such as networking, positioning, remote control, and status monitoring, they primarily employ an MCU paired with a 4G communication unit module. These terminals support GPS and BeiDou dual-mode satellite positioning, as well as Bluetooth and WiFi, and can report vehicle information to a server in real time. However, these solutions often use Qualcomm 4G modules and foreign platforms like ST / NXP MCUs. Although these technologies are mature and reliable, in the current highly competitive market, they are showing drawbacks such as high supply chain risks, poor cost control, and difficulty in meeting specific domestic production requirements. Furthermore, for the complex vehicle status information collection and fusion needs of hybrid two-wheeled vehicles, general-purpose T-Box solutions often suffer from insufficient interfaces or inadequate processing capabilities. Therefore, there is an urgent need for a dedicated communication terminal based on domestically produced core hardware, with rich interfaces, low power consumption, and high reliability. Utility Model Content

[0004] The main purpose of this utility model is to provide a communication terminal for hybrid electric two-wheeled vehicles based on a domestically produced hardware platform. It adopts a domestically produced or domestically dominated main control MCU and 4G communication module, and integrates multi-mode positioning, dual-mode (hybrid / electric) vehicle bus access, low-power power management and rich expansion interfaces, effectively improving the terminal's safety, economy and applicability.

[0005] To achieve the above objectives, this utility model provides a communication terminal for a hybrid electric two-wheeler based on a domestically produced hardware platform, comprising a main control MCU unit, a 4G communication and positioning unit, a vehicle interface unit, and a Bluetooth unit, wherein: The main control MCU unit includes a main control chip U7A; The 4G communication and positioning unit includes a communication module U5A, a communication module U5B, a network access chip U6, and a USIM interface chip U20. The main control chip U7A and the USIM interface chip U20 are electrically connected to the communication module U5A, and the network access chip U6 is electrically connected to the communication module U5B. The vehicle interface unit includes a CAN bus interface U15 and a LIN bus interface U16, which are electrically connected to the main control chip U7A respectively. The Bluetooth unit includes a Bluetooth chip U13, which is electrically connected to the main control chip U7A.

[0006] As a further preferred embodiment of the above technical solution, pin 1 of the communication module U5A is electrically connected to the collector of transistor Q6, and the base of transistor Q6 is electrically connected to pin 25 of the main control chip U7A through resistor R34. The communication module U5A's pin 3 is electrically connected to the base of transistor Q4 through resistor R32, and the collector of transistor Q4 is electrically connected to pin 54 of the main control chip U7A. The communication module U5A has its 4th pin electrically connected to the collector of transistor Q10, and the base of transistor Q10 is electrically connected to the 21st pin of the main control chip U7A through resistor R41. The 20th pin of the communication module U5A is electrically connected to the collector of the transistor Q9, and the base of the transistor Q9 is electrically connected to the 16th pin of the main control chip U7A through resistor R40. The 21st pin of the communication module U5A is electrically connected to the collector of the transistor Q5, and the base of the transistor Q5 is electrically connected to the 20th pin of the main control chip U7A through resistor R33. The communication module U5B is also electrically connected to the main control chip U7A through the level conversion chip U12.

[0007] As a further preferred embodiment of the above technical solution, pin 2 of the network access chip U6 is electrically connected to pin 41 of the communication module U5B through resistor R25, and pin 12 of the network access chip U6 is electrically connected to pin 42 of the communication module U5B through resistor R24. Pin 3 of the USIM interface chip U20 is electrically connected to pin 15 of the communication module U5A through resistor R87. Pin 6 of the USIM interface chip U20 is electrically connected to pin 16 of the communication module U5A through resistor R89. Pin 7 of the USIM interface chip U20 is electrically connected to pin 17 of the communication module U5A through resistor R88.

[0008] As a further preferred technical solution to the above technical solution, it also includes a GNSS antenna circuit and a main antenna circuit, wherein pin 47 of the communication module U5B is electrically connected to the GNSS antenna circuit, and pin 49 of the communication module U5B is electrically connected to the main antenna circuit.

[0009] As a further preferred embodiment of the above technical solution, pin 8 of the CAN bus interface U15 is electrically connected to pin 3 of the main control chip U7A through resistor R111, pin 1 of the CAN bus interface U15 is electrically connected to pin 2 of the main control chip U7A through resistor R112, and pin 4 of the CAN bus interface U15 is electrically connected to pin 1 of the main control chip U7A through resistor R114. Pin 1 of the LIN bus interface U16 is electrically connected to pin 34 of the main control chip U7A through resistor R121. Pin 4 of the LIN bus interface U16 is electrically connected to pin 33 of the main control chip U7A through resistor R122. Pin 2 of the LIN bus interface U16 is electrically connected to pin 35 of the main control chip U7A through resistor R124. Pin 3 of the LIN bus interface U16 is electrically connected to pin 36 of the main control chip U7A through resistor R118, transistor Q11, and resistor R116.

[0010] As a further preferred technical solution of the above technical solution, pin 14 of the Bluetooth chip U13 is electrically connected to the collector of transistor Q8 through resistor R98, and the base of transistor Q8 is electrically connected to pin 56 of the main control chip U7A through resistor R39. The 30 pin of the Bluetooth chip U13 is electrically connected to the collector of the transistor Q1, and the base of the transistor Q1 is electrically connected to the 57 pin of the main control chip U7A through the resistor R21. The 29th pin of the Bluetooth chip U13 is electrically connected to the base of the transistor Q7 through resistor R38, and the collector of the transistor Q7 is electrically connected to the 53rd pin of the main control chip U7A. The Bluetooth chip is also electrically connected to the main control chip U7A through a level conversion chip U11.

[0011] As a further preferred technical solution to the above technical solution, a power management unit and a storage unit are also included.

[0012] The beneficial effects of this utility model are as follows: 1. Purely domestically produced, safe and controllable: Key components such as the core processor MCU and communication module all use domestically produced chips, reducing dependence on foreign supply chains, effectively reducing supply chain risks, and ensuring the security of vehicle data transmission and storage, which meets the requirements of domestic production.

[0013] 2. High functional integration: A single terminal integrates multiple functions such as 4GCat1 communication, multi-mode satellite positioning, CAN / LIN vehicle network access, Bluetooth local connection, and data storage, which can fully meet the all-round intelligent needs of hybrid two-wheeled vehicles without the need to add multiple additional devices, thus simplifying the vehicle's hardware configuration.

[0014] 3. Excellent power consumption management: It features a multi-level power management architecture and software sleep strategy. The power management unit can provide adaptive voltage according to the needs of different components, and the software sleep strategy can intelligently adjust the terminal's working mode according to the vehicle status, significantly reducing power consumption when the vehicle is stationary, extending the backup battery range, and reducing energy consumption.

[0015] 4. Abundant interfaces and strong applicability: It provides CAN bus interface, LIN bus interface, etc., which can be flexibly adapted to ECUs, sensors and external devices of different vehicle models, improving the universality and applicability of the terminal.

[0016] 5. Excellent cost-effectiveness: By adopting a high-performance domestic solution, powerful functions are achieved while effectively controlling costs. Compared with foreign solutions, it can reduce the production cost of the end product, which is conducive to large-scale promotion and application and promotes the popularization of intelligent connectivity of electric two-wheeled vehicles.

[0017] 6. Reliable performance: The domestically produced chip solution used has been successfully applied in large-scale scenarios, with good market feedback. It has high reliability and can ensure that the terminal works stably in various complex vehicle environments, meeting the long-term use needs of hybrid electric two-wheelers. Attached Figure Description

[0018] Figure 1 This is the circuit diagram of the main control MCU unit of this utility model.

[0019] Figure 2 This is a circuit diagram of the 4G communication and positioning unit of this utility model.

[0020] Figure 3 This is a circuit diagram of the vehicle interface unit of this utility model.

[0021] Figure 4 This is a circuit diagram of the Bluetooth unit of this utility model.

[0022] Figure 5 This is a circuit diagram showing the connection between the main control MCU unit and the 4G communication and positioning unit of this utility model.

[0023] Figure 6 This is a circuit diagram showing the connection between the main control MCU unit and the Bluetooth unit of this utility model.

[0024] Figure 7 This is a circuit diagram of the GNSS antenna and the main antenna of this utility model.

[0025] Figure 8 This is a circuit diagram of the power management unit of this utility model.

[0026] Figure 9 This is a circuit diagram of the storage unit of this utility model. Detailed Implementation

[0027] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0028] This utility model discloses a communication terminal for a hybrid electric two-wheeler based on a domestically produced hardware platform. The specific embodiments of the utility model are further described below with reference to preferred embodiments.

[0029] In the embodiments of this utility model, those skilled in the art will note that the electric two-wheeled vehicles and the like involved in this utility model can be considered as prior art.

[0030] Preferred embodiment.

[0031] like Figure 1-9 As shown, this utility model discloses a communication terminal for a hybrid electric two-wheeler based on a domestically produced hardware platform, including a main control MCU unit, a 4G communication and positioning unit, a vehicle interface unit, and a Bluetooth unit, wherein: The main control MCU unit includes a main control chip U7A; The 4G communication and positioning unit includes a communication module U5A, a communication module U5B (U5B and U5A together form a complete communication module U5), a network access chip U6, and a USIM (Universal Subscriber Identity Module) interface chip U20. The main control chip U7A and the USIM interface chip U20 are electrically connected to the communication module U5A, and the network access chip U6 is electrically connected to the communication module U5B. The vehicle interface unit includes a CAN bus interface U15 and a LIN bus interface U16 (the bus interface is used to connect the vehicle's ECU, BMS, instrument panel and other sensors), and the CAN bus interface U15 and LIN bus interface U16 are electrically connected to the main control chip U7A respectively. The Bluetooth unit includes a Bluetooth chip U13 (used for near-field device connection and debugging or Bluetooth key unlocking), and the Bluetooth chip U13 is electrically connected to the main control chip U7A.

[0032] Specifically, such as Figure 5 As shown, pin 1 of the communication module U5A is electrically connected to the collector of transistor Q6, and the base of transistor Q6 is electrically connected to pin 25 of the main control chip U7A through resistor R34. The communication module U5A's pin 3 is electrically connected to the base of transistor Q4 through resistor R32, and the collector of transistor Q4 is electrically connected to pin 54 of the main control chip U7A. The communication module U5A has its 4th pin electrically connected to the collector of transistor Q10, and the base of transistor Q10 is electrically connected to the 21st pin of the main control chip U7A through resistor R41. The 20th pin of the communication module U5A is electrically connected to the collector of the transistor Q9, and the base of the transistor Q9 is electrically connected to the 16th pin of the main control chip U7A through resistor R40. The 21st pin of the communication module U5A is electrically connected to the collector of the transistor Q5, and the base of the transistor Q5 is electrically connected to the 20th pin of the main control chip U7A through resistor R33. The communication module U5B is also electrically connected to the main control chip U7A through the level conversion chip U12.

[0033] More specifically, pin 2 of the network access chip U6 (HSM, FM1280) is electrically connected to pin 41 of the communication module U5B through resistor R25, and pin 12 of the network access chip U6 is electrically connected to pin 42 of the communication module U5B through resistor R24. (U6 (FM1280) is a key supporting chip for the 4G communication and positioning unit, directly supporting the core communication functions of the terminal: after the 4G module obtains access permission from the operator's network through U6, it can realize the uploading of vehicle status data (such as location and battery information) and the reception of cloud control commands (such as remote locking). It is one of the basic hardware components for the terminal's networking capabilities, used to enable the 4G communication and positioning unit to realize the functions of data uploading and command reception.) Pin 3 (connecting to pin 2) of the USIM interface chip U20 is electrically connected to pin 15 of the communication module U5A through resistor R87. Pin 6 of the USIM interface chip U20 is electrically connected to pin 16 of the communication module U5A through resistor R89. Pin 7 of the USIM interface chip U20 is electrically connected to pin 17 of the communication module U5A through resistor R88. (U20 is responsible for managing data interaction related to the USIM card, while U5 needs to perform network registration, authentication, and other operations through the USIM card to achieve 4G network communication.)

[0034] Furthermore, such as Figure 7 As shown, it also includes a GNSS antenna circuit and a main antenna circuit. Pin 47 of the communication module U5B is electrically connected to the GNSS antenna circuit, and pin 49 of the communication module U5B is electrically connected to the main antenna circuit.

[0035] Furthermore, such as Figure 3 As shown, pin 8 of the CAN bus interface U15 is electrically connected to pin 3 of the main control chip U7A through resistor R111, pin 1 of the CAN bus interface U15 is electrically connected to pin 2 of the main control chip U7A through resistor R112, and pin 4 of the CAN bus interface U15 is electrically connected to pin 1 of the main control chip U7A through resistor R114. Pin 1 of the LIN bus interface U16 is electrically connected to pin 34 of the main control chip U7A through resistor R121. Pin 4 of the LIN bus interface U16 is electrically connected to pin 33 of the main control chip U7A through resistor R122. Pin 2 of the LIN bus interface U16 is electrically connected to pin 35 of the main control chip U7A through resistor R124. Pin 3 of the LIN bus interface U16 is electrically connected to pin 36 of the main control chip U7A through resistor R118, transistor Q11, and resistor R116.

[0036] Preferably, such as Figure 6 As shown, pin 14 of the Bluetooth chip U13 is electrically connected to the collector of transistor Q8 through resistor R98, and the base of transistor Q8 is electrically connected to pin 56 of the main control chip U7A through resistor R39. The 30 pin of the Bluetooth chip U13 is electrically connected to the collector of the transistor Q1, and the base of the transistor Q1 is electrically connected to the 57 pin of the main control chip U7A through the resistor R21. The 29th pin of the Bluetooth chip U13 is electrically connected to the base of the transistor Q7 through resistor R38, and the collector of the transistor Q7 is electrically connected to the 53rd pin of the main control chip U7A. The Bluetooth chip is also electrically connected to the main control chip U7A through a level conversion chip U11.

[0037] Preferably, it also includes a power management unit and a storage unit.

[0038] Regarding this utility model: The main control MCU unit uses the domestically produced KF32A146KQT chip as its core processor, responsible for overall system scheduling, data processing, protocol conversion, and peripheral control. In practical applications, this chip receives, processes, and analyzes data from various units through preset program instructions, and sends control commands to each unit to ensure the orderly and efficient operation of the entire terminal system. For example, after receiving vehicle ECU data transmitted from the vehicle interface unit, the MCU unit parses and processes the data, and then sends the processed data to the 4G communication and positioning unit for uploading to the server.

[0039] The 4G communication and positioning unit uses the domestically produced SLM332L module, supporting LTE Cat.1 communication and integrating multi-mode GNSS positioning functionality, supporting GPS, BeiDou, GLONASS, and Galileo positioning. The main function of this unit is to upload various data collected by the MCU to the server and receive instructions from the server, enabling communication between the terminal and the outside world. Its integrated multi-mode positioning function ensures accurate acquisition of vehicle location information in different environments, meeting the positioning needs of hybrid electric two-wheelers. The 4G communication and positioning unit connects to the main control MCU unit via a UART interface and uses a level conversion chip UM3202Q for level matching to ensure the stability and accuracy of data transmission. Furthermore, the 4G communication and positioning unit is also connected to a GNSS antenna and a 4G main antenna, with independent interfaces for the GNSS antenna and 4G main antenna. Through precise antenna testing and design, it ensures the reception quality of GPS and 4G signals in complex urban environments, achieving good communication and positioning effects even in areas with weak signals.

[0040] For the vehicle interface unit, the CAN bus interface and LIN bus interface are used to connect to the vehicle's ECU, BMS, and other control units to acquire vehicle operating status data and transmit control commands. The CAN bus interface terminating resistor and CAN_STANDBY signal of the vehicle interface unit are controlled by the MCU, which can further reduce static power consumption after engine shutdown and improve the energy-saving effect of the terminal.

[0041] The domestically produced Bluetooth unit (FR8016HA chip) is used for near-field device connection and debugging or Bluetooth key unlocking, improving the ease of use of the terminal; it is also equipped with status indicator lights and a physical interface (USB Debug interface) to help staff understand the working status of the terminal, and facilitate status indication and maintenance.

[0042] For power management units, such as Figure 8 As shown, the unit includes a wide-voltage input DC-DC circuit (SCT9431Q chip), a lithium battery charging management circuit (BQ25171 chip), a multi-channel low-dropout linear regulator (TLV70233 chip), and an ACC signal detection circuit. This unit supports a wide voltage input of 9V-36V, adapting to the power supply of different types of hybrid two-wheeled vehicles. The built-in backup lithium battery interface supports low-power operation and location tracking after the vehicle is turned off, avoiding the problem of not being able to obtain location information when the vehicle is off. The multi-channel low-dropout linear regulator converts the M_5V system bus to 3.8V, 3.3V, and 1.8V. The 3.8V voltage supplies the 4G module, the 3.3V voltage supplies the MCU, Flash, and CAN / LIN transceiver, and the 1.8V voltage supplies the eMMC's VCCQ and level conversion, providing stable and compatible voltages for all terminal components and ensuring their normal operation.

[0043] For storage units, such as Figure 9 As shown, it includes SPINorFlash (XM25QU256 chip) and eMMC (FEMDRW008G chip). SPINorFlash is mainly used to store program code and system logs to ensure the normal operation of terminal software and the recording of system operation data; eMMC is used to cache map and user data, providing data storage support for the terminal's map navigation function and user personalization settings.

[0044] It is worth mentioning that the technical features of the electric two-wheeled vehicle involved in this utility model patent application should be regarded as prior art. The specific structure, working principle, and possible control methods and spatial arrangement of these technical features can be adopted using conventional choices in the field and should not be regarded as the inventive point of this utility model patent. This utility model patent will not elaborate further.

[0045] For those skilled in the art, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A communication terminal for a hybrid electric two-wheeled vehicle based on a domestically produced hardware platform, characterized in that: It includes a main control MCU unit, a 4G communication and positioning unit, a vehicle interface unit, and a Bluetooth unit, among which: The main control MCU unit includes a main control chip U7A; The 4G communication and positioning unit includes a communication module U5A, a communication module U5B, a network access chip U6, and a USIM interface chip U20. The main control chip U7A and the USIM interface chip U20 are electrically connected to the communication module U5A, and the network access chip U6 is electrically connected to the communication module U5B. The vehicle interface unit includes a CAN bus interface U15 and a LIN bus interface U16, which are electrically connected to the main control chip U7A respectively. The Bluetooth unit includes a Bluetooth chip U13, which is electrically connected to the main control chip U7A.

2. The communication terminal for a hybrid electric two-wheeled vehicle based on a domestically produced hardware platform according to claim 1, characterized in that, Pin 1 of the communication module U5A is electrically connected to the collector of transistor Q6, and the base of transistor Q6 is electrically connected to pin 25 of the main control chip U7A through resistor R34. The communication module U5A's pin 3 is electrically connected to the base of transistor Q4 through resistor R32, and the collector of transistor Q4 is electrically connected to pin 54 of the main control chip U7A. The communication module U5A has its 4th pin electrically connected to the collector of transistor Q10, and the base of transistor Q10 is electrically connected to the 21st pin of the main control chip U7A through resistor R41. The 20th pin of the communication module U5A is electrically connected to the collector of the transistor Q9, and the base of the transistor Q9 is electrically connected to the 16th pin of the main control chip U7A through resistor R40. The 21st pin of the communication module U5A is electrically connected to the collector of the transistor Q5, and the base of the transistor Q5 is electrically connected to the 20th pin of the main control chip U7A through resistor R33. The communication module U5B is also electrically connected to the main control chip U7A through the level conversion chip U12.

3. A communication terminal for a hybrid electric two-wheeled vehicle based on a domestically produced hardware platform according to claim 2, characterized in that, Pin 2 of the network access chip U6 is electrically connected to pin 41 of the communication module U5B through resistor R25, and pin 12 of the network access chip U6 is electrically connected to pin 42 of the communication module U5B through resistor R24. Pin 3 of the USIM interface chip U20 is electrically connected to pin 15 of the communication module U5A through resistor R87. Pin 6 of the USIM interface chip U20 is electrically connected to pin 16 of the communication module U5A through resistor R89. Pin 7 of the USIM interface chip U20 is electrically connected to pin 17 of the communication module U5A through resistor R88.

4. A communication terminal for a hybrid electric two-wheeled vehicle based on a domestically produced hardware platform according to claim 3, characterized in that, It also includes a GNSS antenna circuit and a main antenna circuit. Pin 47 of the communication module U5B is electrically connected to the GNSS antenna circuit, and pin 49 of the communication module U5B is electrically connected to the main antenna circuit.

5. A communication terminal for a hybrid electric two-wheeled vehicle based on a domestically produced hardware platform according to claim 4, characterized in that, The 8th pin of the CAN bus interface U15 is electrically connected to the 3rd pin of the main control chip U7A through resistor R111, the 1st pin of the CAN bus interface U15 is electrically connected to the 2nd pin of the main control chip U7A through resistor R112, and the 4th pin of the CAN bus interface U15 is electrically connected to the 1st pin of the main control chip U7A through resistor R114. Pin 1 of the LIN bus interface U16 is electrically connected to pin 34 of the main control chip U7A through resistor R121. Pin 4 of the LIN bus interface U16 is electrically connected to pin 33 of the main control chip U7A through resistor R122. Pin 2 of the LIN bus interface U16 is electrically connected to pin 35 of the main control chip U7A through resistor R124. Pin 3 of the LIN bus interface U16 is electrically connected to pin 36 of the main control chip U7A through resistor R118, transistor Q11, and resistor R116.

6. A communication terminal for a hybrid electric two-wheeled vehicle based on a domestically produced hardware platform according to claim 5, characterized in that, Pin 14 of the Bluetooth chip U13 is electrically connected to the collector of transistor Q8 through resistor R98, and the base of transistor Q8 is electrically connected to pin 56 of the main control chip U7A through resistor R39. The 30 pin of the Bluetooth chip U13 is electrically connected to the collector of the transistor Q1, and the base of the transistor Q1 is electrically connected to the 57 pin of the main control chip U7A through the resistor R21. The 29th pin of the Bluetooth chip U13 is electrically connected to the base of the transistor Q7 through resistor R38, and the collector of the transistor Q7 is electrically connected to the 53rd pin of the main control chip U7A. The Bluetooth chip is also electrically connected to the main control chip U7A through a level conversion chip U11.

7. A communication terminal for a hybrid electric two-wheeled vehicle based on a domestically produced hardware platform according to claim 6, characterized in that, It also includes a power management unit and a storage unit.

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