Electrical architecture using remote communication terminal as whole vehicle gateway

Abstract

According to the electrical architecture with the remote communication terminal as the whole vehicle gateway, the Tbox serves as the whole vehicle gateway and is connected with a plurality of whole vehicle CAN channels, so that the Tbox can provide services such as 4G signals and vehicle networking data uploading for the whole vehicle, and meanwhile relevant functions of an integrated gateway controller can be developed; the related functions of the gateway controller comprise a fault detection and positioning function, a function of dynamically managing a plurality of CAN channels and a baud rate through a single configuration switch, and wake-up management work of customizing a plurality of channels according to conditions. According to the method, the Tbox is used as the whole vehicle gateway, the fault codes can be accurately matched through the fault code library and the diagnosis information, the fault reason, the possible position and the processing scheme are analyzed, and the fault positioning accuracy is greatly improved; a driver can check the fault reason and position in real time, the use experience of a vehicle owner is remarkably improved, and the maintenance time and cost are saved.

Description

Technical Field

[0001] The present invention relates to the field of automotive electronics, and in particular to an electrical architecture that uses a remote communication terminal as a whole vehicle gateway. Background Art

[0002] At present, the Internet of Vehicles system mainly communicates within the vehicle through two CAN buses, namely CAN0 and CAN1; CAN0 is a bus shared by all controllers and is mainly used to perform diagnostic functions and transmit vehicle diagnostic information; when a controller of the vehicle fails or is abnormal, the Internet of Vehicles can detect through CAN0 that the controller cannot communicate normally with other systems.

[0003] However, the diagnostic information of CAN0 is relatively simple, and usually can only identify the inability to communicate, but cannot provide more detailed fault causes; this limits the efficiency of troubleshooting and repair, especially in the case of complex faults or multiple faults coexisting, and it is impossible to quickly locate the specific problem. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an electrical architecture that uses a remote communication terminal as a gateway for the entire vehicle.

[0005] To achieve the above object, the present invention adopts the following technical solutions: An electrical architecture that uses a remote communication terminal as a vehicle gateway, uses a Tbox as a vehicle gateway and connects multiple vehicle CAN channels, so that the Tbox can not only provide 4G signals, Internet of Vehicles data upload and other services for the vehicle, but also develop integrated gateway controller related functions; the gateway controller related functions include fault detection and location functions, dynamic management of multiple CAN channels and baud rates through a single configuration switch, and conditional customization of wake-up management of multiple channels, etc. Specifically, Tbox is used as the vehicle gateway to realize fault detection and location functions. The implementation method is as follows: When the engine or other systems of the vehicle fail and the vehicle cannot drive normally, the driver interacts with the car networking cloud through the vehicle system, and the customer service system of the car networking cloud provides remote diagnostic services or guidance; at the same time, the car networking cloud sends a query of the vehicle DTC command to the vehicle through Tbox, locates the type of faulty controller, and uploads it to the car networking cloud again. The car networking cloud requests Tbox to upload the signal of the CAN channel where the faulty controller is located and exports and uploads it in the form of logs; the CAN signal contains DM_1 diagnostic information, and the DM_1 diagnostic information contains fault code information; Tbox has a preset fault code library, which contains fault codes, corresponding fault causes, possible fault locations and solutions; The Internet of Vehicles cloud parses the DM_1 diagnostic information in the log based on Tbox, and uses the preset fault code library to match the fault cause, fault location, and solution according to the fault code; Tbox communicates with the display screen through the in-car infotainment system to display the cause, location and solution of the fault in real time; it can also push fault information to the owner's mobile phone APP through the Internet of Vehicles service platform to guide the owner to handle the problem.

[0006] Furthermore, using Tbox as a vehicle gateway, it is possible to dynamically manage the functions and baud rates of multiple CAN channels through a single configuration switch; Tbox integrates multiple CAN processing chips and interfaces, connects to different CAN buses, and communicates with other electronic control units ECU or diagnostic equipment of the vehicle through software and hardware interfaces; and reads vehicle model information according to the vehicle type, the vehicle model information includes vehicle model type, CAN channel configuration, etc.; after receiving the vehicle model information, Tbox adjusts the internal switch to configure different numbers of CAN channels and the baud rate of each channel; it can realize the dynamic management of the functions and baud rates of multiple CAN channels through a single configuration switch.

[0007] Furthermore, by using Tbox as the gateway for the entire vehicle, the wake-up management of multiple channels can be customized according to conditions; Use Tbox as the gateway for the entire vehicle, and customize the wake-up management of multiple channels according to conditions; After the vehicle is powered off, all electronic systems on the vehicle need to enter a dormant state; Tbox wakes up related bus channels according to different event conditions, without putting the entire vehicle system in a high-consumption state.

[0008] By using Tbox as the central gateway and waking up necessary bus channels on demand, the entire vehicle system can be prevented from being in a high-power working state. Tbox will wake up the relevant channels only when needed, greatly reducing unnecessary energy consumption and extending battery life. Deciding which bus channels to wake up based on the conditions of different events not only improves the flexibility of the system, but also can more accurately determine when certain functions need to be woken up, thereby avoiding unnecessary wake-ups. As the gateway for the entire vehicle, Tbox can wake up the relevant channels based on specific events or remote commands, allowing the vehicle to support remote control and diagnostic functions without being fully started.

[0009] For example: the vehicle network contains Ethernet, Wifi, CAN1, CAN2, CAN3, and CAN4 channels; The functions of each channel are customized as follows: Ethernet channel is used for data transmission of driving recorder, intelligent driving system, and vehicle display screen; Wifi channel is used for data transmission of mobile phone APP; CAN1 channel is used for data transmission of vehicle computer or entertainment display screen such as instrument; CAN2 channel is used for data transmission of power mechanical controller such as engine and battery; CAN3 channel is used for data transmission of body controller such as vehicle body and door lock; CAN4 channel is used for data transmission of chassis controller such as suspension and brake; When the owner uses the mobile phone APP to issue a command to remotely unlock the vehicle through the digital key, Tbox can analyze and determine that it is not necessary to wake up the entire vehicle system. Only CAN2 and CAN3 channels need to be woken up, and the other CAN channels remain dormant, so that the function of remotely unlocking the vehicle through the digital key can be realized; When pedestrians linger in front of the car for a long time or the door or fuel tank switch is abnormally touched, Tbox uses the driving recorder and sensors to identify the risk of car theft, and determines that there is no need to wake up the entire vehicle system in this case. It only needs to wake up CAN2 and Ethernet channels, power the driving recorder, and upload video data through the cloud for backup and real-time monitoring. The remaining channels remain in dormant state to achieve anti-theft function or abnormal behavior detection function.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes an electrical architecture that uses a remote communication terminal as a whole vehicle gateway. By using Tbox as the whole vehicle gateway, the fault code can be accurately matched through the fault code library and diagnostic information, and the cause of the fault, possible location and treatment plan can be analyzed, thereby greatly improving the accuracy of fault location. The driver can view the cause and location of the fault in real time, which significantly improves the user experience of the car owner and saves maintenance time and cost. At the same time, it can dynamically manage the functions and baud rates of multiple CAN channels, adapt to the needs of different vehicles, and reduce the development workload and cost when the vehicle model is changed. By waking up the necessary bus channels on demand, it can avoid putting the whole vehicle system in a high power consumption working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of an electrical architecture of the present invention using a remote communication terminal as a vehicle gateway; Figure 2 This is a flowchart of the steps of using a remote communication terminal as a vehicle gateway to implement fault detection and positioning functions in the present invention; Figure 3 This is a production line flow chart of the present invention, which uses a remote communication terminal as a vehicle gateway to dynamically manage the functions and baud rates of multiple CAN channels through a single configuration switch; Figure 4The present invention is a schematic diagram of a wake-up management work of using a remote communication terminal as a whole vehicle gateway to implement conditional customization of multiple channels. DETAILED DESCRIPTION

[0012] In order to provide a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed description is given in conjunction with the embodiments.

[0013] like Figure 1 , 2 As shown in Figures 3 and 4, an electrical architecture that uses a remote communication terminal as a whole vehicle gateway, uses Tbox as a whole vehicle gateway and connects multiple CAN channels of the whole vehicle, so that Tbox can not only provide 4G signals, Internet of Vehicles data upload and other services for the whole vehicle, but also develop functions related to the integrated gateway controller; the functions related to the gateway controller include fault detection and positioning functions, dynamic management of multiple CAN channels and baud rates through a single configuration switch, and wake-up management of multiple channels customized by conditions, etc.; Specifically, Tbox is used as the vehicle gateway to realize fault detection and location functions. The implementation method is as follows: When the engine or other systems of the vehicle fail and the vehicle cannot drive normally, the driver interacts with the car networking cloud through the vehicle system, and the customer service system of the car networking cloud provides remote diagnostic services or guidance; at the same time, the car networking cloud sends a query of the vehicle DTC command to the vehicle through Tbox, locates the type of faulty controller, and uploads it to the car networking cloud again. The car networking cloud requests Tbox to upload the signal of the CAN channel where the faulty controller is located and exports and uploads it in the form of logs; the CAN signal contains DM_1 diagnostic information, and the DM_1 diagnostic information contains fault code information; Tbox has a preset fault code library, which contains fault codes, corresponding fault causes, possible fault locations and solutions; For example, the fault code of engine misfire, such as SPN300, may be related to factors such as the ignition system, fuel system or air flow. Tbox further analyzes the relevant data on the CAN bus, such as cylinder pressure, oxygen sensor signal, etc., to accurately locate which part has a problem. The Internet of Vehicles cloud parses the DM_1 diagnostic information in the log based on Tbox, and uses the preset fault code library to match the fault cause, fault location, and solution according to the fault code; Tbox communicates with the display screen through the in-car infotainment system to display the cause, location and solution of the fault in real time. It can also push the fault information to the owner's mobile phone APP through the Internet of Vehicles service platform to guide the owner to handle the problem. Preferably, Tbox can also remotely provide some emergency treatment plans to help car owners or 4S stores to carry out preliminary processing; when the fault severity is low, Tbox can provide some basic troubleshooting suggestions through the APP or the in-car display; for example, if the fault is caused by low oil level, Tbox can suggest the owner to refuel; if the coolant temperature is too high, Tbox can suggest stopping the car to cool down and check the cooling system; when the fault severity is high, Tbox can automatically initiate a remote diagnosis request or notification to the 4S store, and the 4S store can view the fault information and provide corresponding guidance.

[0014] By using Tbox as the gateway for the entire vehicle, Tbox can efficiently process vehicle fault information and perform remote diagnosis. It not only provides car owners with convenient fault detection and emergency handling functions, but also provides real-time data support for maintenance organizations such as 4S stores, improving car owners' car experience and vehicle maintenance efficiency.

[0015] Furthermore, using Tbox as a vehicle gateway, it is possible to dynamically manage the functions and baud rates of multiple CAN channels through a single configuration switch; Tbox integrates multiple CAN processing chips and interfaces, connects to different CAN buses, and communicates with other electronic control units ECU or diagnostic equipment of the vehicle through software and hardware interfaces; and reads vehicle model information according to the vehicle type, the vehicle model information includes vehicle model type, CAN channel configuration, etc.; after receiving the vehicle model information, Tbox adjusts the internal switch to configure different numbers of CAN channels and the baud rate of each channel; it can realize the dynamic management of the functions and baud rates of multiple CAN channels through a single configuration switch.

[0016] During the assembly process of the production line, after the vehicle is assembled, the diagnostic equipment of the production line communicates with the Tbox through the diagnostic CAN interface to transmit vehicle model information; the vehicle model information includes vehicle type, CAN channel configuration, etc. After receiving the vehicle model information, Tbox automatically adjusts the number of CAN channels, baud rate configuration, etc. according to the preset software configuration; When the vehicle is offline, the Tbox communicates with other electronic control units ECU of the vehicle to perform offline detection to ensure that all CAN channels are correctly configured; if the Tbox finds an abnormality during the adaptive process, the diagnostic equipment reads the fault code of the Tbox or other electronic control unit ECU to further troubleshoot and handle the problem. After all channels and baud rates are successfully configured, the Tbox and the vehicle will pass the final acceptance test, including functional verification, data communication, fault code inspection, etc.; once the verification is passed, the vehicle will enter the final acceptance stage and be put into storage for shipment.

[0017] By using Tbox as the gateway for the entire vehicle and dynamically managing the functions and baud rates of multiple CAN channels, it can adapt to the needs of different vehicles and reduce the development workload and cost when the vehicle electrical architecture is changed; it improves the scalability and maintainability of the system. When a problem occurs in a CAN channel or baud rate setting, Tbox can reconfigure or shut down the corresponding channel through the software interface, which facilitates quick troubleshooting and maintenance, reducing the complexity of vehicle electronic system failures.

[0018] Furthermore, by using Tbox as the gateway for the entire vehicle, the wake-up management of multiple channels can be customized according to conditions; Use Tbox as the gateway for the entire vehicle, and customize the wake-up management of multiple channels according to conditions; After the vehicle is powered off, all electronic systems on the vehicle need to enter a dormant state; Tbox wakes up related bus channels according to different event conditions, without putting the entire vehicle system in a high-consumption state.

[0019] For example: the vehicle network includes Ethernet, Wifi, CAN1, CAN2, CAN3, and CAN4 channels; the functions of customizing each channel are as follows: The Ethernet channel is used for data transmission of driving recorders, intelligent driving systems, and vehicle display screens; the Wifi channel is used for data transmission of mobile phone APPs; the CAN1 channel is used for data transmission of vehicle computers or entertainment display screens such as instruments; the CAN2 channel is used for data transmission of power mechanical controllers such as engines and batteries; the CAN3 channel is used for data transmission of body controllers such as vehicle bodies and door locks; and the CAN4 channel is used for data transmission of chassis controllers such as suspensions and brakes. When the owner uses the mobile phone APP to issue a command to remotely unlock the vehicle through the digital key, Tbox can analyze and determine that it is not necessary to wake up the entire vehicle system. Only CAN2 and CAN3 channels need to be woken up, and the other CAN channels remain dormant, so that the function of remotely unlocking the vehicle through the digital key can be realized; When pedestrians linger in front of the car for a long time or the door or fuel tank switch is abnormally touched, Tbox uses the driving recorder and sensors to identify the risk of car theft, and determines that there is no need to wake up the entire vehicle system in this case. It only needs to wake up CAN2 and Ethernet channels, power the driving recorder, and upload video data through the cloud for backup and real-time monitoring. The remaining channels remain in dormant state to achieve anti-theft function or abnormal behavior detection function.

[0020] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, changes and modifications made without departing from the spirit and scope of the present invention are all within the scope of patent protection of the present invention.

Claims

1. An electrical architecture using a remote communication terminal as a vehicle gateway, characterized in that: By using Tbox as the vehicle gateway and connecting multiple vehicle CAN channels, Tbox can not only provide 4G signals and Internet of Vehicles data upload services for the vehicle, but also develop related functions of the integrated gateway controller; The gateway controller related functions include fault detection and location function, dynamic management of multiple CAN channels and baud rate through a single configuration switch, and conditional customization of wake-up management of multiple channels.

2. The electrical architecture of using the remote communication terminal as the vehicle gateway as claimed in claim 1, characterized in that: Use Tbox as the vehicle gateway to implement fault detection and location functions. The implementation method is as follows: When the engine or other systems of the vehicle fail and the vehicle cannot drive normally, the driver interacts with the car networking cloud through the vehicle system, and the customer service system of the car networking cloud provides remote diagnostic services or guidance; at the same time, the car networking cloud sends a query of the vehicle DTC command to the vehicle through Tbox, locates the type of faulty controller, and uploads it to the car networking cloud again. The car networking cloud requests Tbox to upload the signal of the CAN channel where the faulty controller is located and exports and uploads it in the form of logs; the CAN signal contains DM_1 diagnostic information, and the DM_1 diagnostic information contains fault code information; Tbox has a preset fault code library, which contains fault codes, corresponding fault causes, fault locations and solutions; The Internet of Vehicles cloud parses the DM_1 diagnostic information in the log based on Tbox, and uses the preset fault code library to match the fault cause, fault location and solution according to the fault code.

3. The electrical architecture of using the remote communication terminal as the vehicle gateway as claimed in claim 2, characterized in that: Tbox communicates with the display screen through the in-car infotainment system to display the cause, location and solution of the fault in real time; it can also push fault information to the owner's mobile phone APP through the Internet of Vehicles service platform to guide the owner to handle the problem.

4. The electrical architecture of using the remote communication terminal as a vehicle gateway as claimed in claim 1, characterized in that: Use Tbox as the vehicle gateway to dynamically manage the functions and baud rates of multiple CAN channels through a single configuration switch; Tbox integrates multiple CAN processing chips and interfaces, connects to different CAN buses, and communicates with other electronic control units ECU or diagnostic equipment of the vehicle through software and hardware interfaces; and reading vehicle model information according to the vehicle type, wherein the vehicle model information includes vehicle model type and CAN channel configuration; After receiving the vehicle model information, Tbox adjusts the internal switch to configure different numbers of CAN channels and the baud rate of each channel; it can dynamically manage the functions and baud rates of multiple CAN channels through a single configuration switch.

5. The electrical architecture of using the remote communication terminal as the vehicle gateway as claimed in claim 1, characterized in that: Use Tbox as the gateway for the entire vehicle, and customize the wake-up management of multiple channels according to conditions; After the vehicle is powered off, all electronic systems on the vehicle need to enter a dormant state; Tbox wakes up related bus channels according to different event conditions, without putting the entire vehicle system in a high-consumption state.

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