A Fault Diagnosis Method Based on CAN Communication Bus System
A CAN communication and bus system technology, applied in the field of fault diagnosis based on CAN communication bus system, can solve problems such as interference, increased maintenance difficulty, inability to accurately identify CAN communication failures, etc., to achieve the effect of ensuring safety
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0029] Such as Figure 1-2 Shown, a kind of fault diagnosis method based on CAN communication bus system, comprises the following steps:
[0030] S0, the car starts;
[0031] S1, the vehicle controller cyclically receives messages from each component;
[0032] S2, the vehicle controller judges whether the message of each component is received, if so, go to step S1; otherwise, go to step S3;
[0033] S3, the vehicle controller judges whether the message of the co...
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