Data communication apparatus for vehicle remote control diagonosis system

Abstract

The invention provides a remote diagnosis system capable of accurately grasping a vehicle failure occurring time with little information processing burden in vehicle. A data communication device of the invention is communicated with a remote diagnosis server outside the vehicle. The communication device comprises: a receiving part for receiving data from a vehicle network; and a vehicle state data storage for storing the vehicle state data relative with the vehicle state received from the vehicle state by the receiving part. The data communication device also comprises: a failure information storage for responding a failure code expressing the vehicle failure received from the vehicle network by the receiving part, storing the vehicle state data with an attached timestamp and the failure code as failure information; and a data communication part for responding a request signal received from the server and transmitting the failure information stored in the failure information storage to the server.

Description

technical field [0001] The present invention relates to an in-vehicle data communication device for a system that transmits data related to failure information that occurs during vehicle operation to a server installed on a base station side and performs remote diagnosis on the server side. Background technique [0002] There is known a remote diagnosis system that wirelessly transmits vehicle information to a base station for fault diagnosis when a fault of a vehicle occurs. In such a system, as shown in Patent Document 1, for example, the server of the information center selects information required for diagnosis and requests the target vehicle to investigate the status information of the vehicle, and the vehicle collects data according to the request and sends it to the server. [0003] In this way, remote vehicle fault diagnosis can be performed on the server side. However, in the case of so-called rare failures with low reproducibility, it is necessary to examine under...

AI Technical Summary

Problems solved by technology

Therefore, there arises a problem that a prompt response to a request from the server cannot be made

In addition, there is a problem that the CPU of the vehicle is required to have high processing power

In addition, there is a problem that when a change in diagnostic criteria occurs, the search program on the vehicle side needs to be changed, and a large-scale response is required.

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