New energy vehicle fault data acquisition method and device
A technology for new energy vehicles and vehicle data, which is applied in the field of new energy vehicle fault data collection, can solve the problems of increased storage costs and difficulty in finding data for R&D personnel, and achieves the effect of reducing storage costs.
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[0028] Such as figure 2 As shown, as a typical implementation of the present invention, the implementation content is described as follows:
[0029] 1) Specify the name of the fault signal in the vehicle protocol file, which can be identified by the dbc protocol database file, so that the vehicle-mounted terminal can understand that those signals are fault signals.
[0030] 2) Use the remote control platform or local configuration file to set how long the vehicle terminal should store the data before and after (denoted as t1) when a fault occurs, such as 5 minutes before and after, or 30 seconds before and after.
[0031] 3) After obtaining the above information, the vehicle-mounted terminal enters the working state and starts to listen to the message on the CAN bus;
[0032] 4) The vehicle-mounted terminal parses each message according to the communication protocol and judges whether there is a fault. Whether a fault occurs in a new energy vehicle is generally determined by judging ...
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