Vehicle fault detection system and method based on vehicle-mounted CAN network
A technology for vehicle faults and detection systems, which is applied in testing/monitoring control systems, general control systems, control/regulation systems, etc. It can save manpower and material resources, be easy to expand, and save costs.
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[0052] Example one
[0053] figure 1 It is the structural diagram of the vehicle fault detection system based on the vehicle CAN network in the first embodiment. The vehicle fault detection system includes a CAN bus control module, a CAN message transceiver module, and a computer connected in sequence.
[0054] The CAN bus control module is used to receive the vehicle data from the vehicle CAN network, and judge whether a fault has occurred according to the vehicle data. When a fault is determined, it generates fault information, and transmits the fault information and the vehicle data within a preset time period through the fault. The protocol is sent to the CAN message transceiver module;
[0055] The CAN message transceiver module is used to forward the data received from the CAN bus control module to the computer;
[0056] The computer stores the pre-stored fault analysis data. The computer is used to receive data from the CAN message transceiver module, analyze the fault informa...
Example Embodiment
[0065] Example two
[0066] figure 2 It is the structural diagram of the vehicle fault detection system based on the vehicle CAN network in the second embodiment. The vehicle fault detection system includes a CAN bus control module, a CAN message transceiver module, a computer, and a server connected in sequence.
[0067] The main difference between the first embodiment and the second embodiment is that the pre-stored fault analysis data in the first embodiment is stored in the computer, and the pre-stored fault analysis data in the second embodiment is stored in the database of the server. When the computer uses the fault analysis data , Need to be retrieved from the database.
[0068] The server is used to store failure analysis data.
[0069] The computer is used to query the server according to the fault information and obtain fault analysis data corresponding to the fault information.
[0070] In the second embodiment, the server supports the online search function, and can also...
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