GATEWAY DEVICE

摘要

A gateway device includes a request receiving portion receiving, from diagnosis purpose tools, diagnosis requests for performing malfunction diagnosis to an ECU of a vehicle, an outputting portion outputting the diagnosis request to an in-vehicle LAN, a response receiving portion receiving a diagnosis response output from the ECU to the in-vehicle LAN as a response to the diagnosis request, a transmitting portion transmitting the diagnosis response to corresponding diagnosis purpose tool, and an arbitration portion. When the request receiving portion receives anon-prioritized diagnosis request from a non-prioritized diagnosis purpose tool at a previous time and receives a prioritized diagnosis request from a prioritized diagnosis purpose tool before an end of the malfunction diagnosis requested by the non-prioritized tool, the arbitration portion cancels an output of the non-prioritized diagnosis request from the outputting portion cancels a transmission of the non-prioritized diagnosis response from the transmitting portion to the non-prioritized tool.

主权项

1. A gateway device comprising:
a request receiving portion receiving, from a first diagnosis purpose tool, a first diagnosis request that requests an execution of a malfunction diagnosis to an electronic control unit equipped to a vehicle, the request receiving portion further receiving, from a second diagnosis purpose tool, a second diagnosis request that requests an execution of a malfunction diagnosis to the electronic control unit, one of the first diagnosis purpose tool or the second diagnosis purpose tool being defined as a prioritized tool and a remaining one of the first diagnosis purpose tool or the second diagnosis purpose tool being defined as a non-prioritized tool, the prioritized tool having a priority higher than a priority of the non-prioritized tool, one of the first diagnosis request or the second diagnosis request output from the prioritized tool being defined as a prioritized diagnosis request and a remaining one of the first diagnosis request or the second diagnosis request output from the non-prioritized tool being defined as a non-prioritized diagnosis request; an outputting portion outputting the first diagnosis request and the second diagnosis request received by the request receiving portion to an in-vehicle local area network to which the electronic control unit is connected; a response receiving portion receiving a first diagnosis response and a second diagnosis response, the first diagnosis response being output from the electronic control unit to the in-vehicle local area network as a response to the first diagnosis request, the second diagnosis response being output from the electronic control unit to the in-vehicle local area network as a response to the second diagnosis request, one of the first diagnosis response or the second diagnosis response output as a response to the prioritized diagnosis request being defined as a prioritized diagnosis response and a remaining one of the first diagnosis response or the second diagnosis response output as a response to the non-prioritized diagnosis request being defined as a non-prioritized diagnosis response; a transmitting portion transmitting the first diagnosis response to the first diagnosis purpose tool as the response to the first diagnosis request and transmitting the second diagnosis response to the second diagnosis purpose tool as the response to the second diagnosis request; and an arbitration portion, when the request receiving portion receives the non-prioritized diagnosis request from the non-prioritized tool for the execution of the malfunction diagnosis to the electronic control unit at a previous time and receives the prioritized diagnosis request from the prioritized tool for the execution of the malfunction diagnosis to the electronic control unit before an end of the malfunction diagnosis requested by the non-prioritized tool at the previous time, the arbitration portion controlling the outputting portion to cancel an output of the non-prioritized diagnosis request and controlling the transmitting portion to cancel a transmission of the non-prioritized diagnosis response to the non-prioritized tool.