車両診断通信

[DoCAN] Vehicle Diagnostic Communication Part 54 [UDS 15]

There is a service called TesterPresent service that does nothing.The TesterPresent service has the following usage scenarios.Checking for communication.Node presence/absence check.Session maintenance.The TesterPresent service is a service that must be supported.
車両診断通信

[DoCAN] Vehicle Diagnostic Communication Part 53 [UDS 14]

Explain the basic flow of the SecurityAccess service.Explain the actual messages in the basic flow of the SecurityAccess service.Security is applied to resources.Service.DID.
車両診断通信

[DoCAN] Vehicle Diagnostic Communication Part 52 [UDS 13]

The SecurityAccess service is purposely troublesome procedure, which is the security strength.Must transition to non-defaultSession in advance.Must wait 10 seconds after IGon.If you make a mistake unlocking, you have to IGoff once.
車両診断通信

[DoCAN] Vehicle Diagnostic Communication Part 51 [UDS 12]

The SecurityAccess service has two major message patterns.requestSeed.Odd sub-functions.sendKey.Even sub-functions.
車両診断通信

[DoCAN] Vehicle Diagnostic Communication Part 50 [UDS 11]

Review of P2 time.P2 time is 1 secondExplanation of P2* timeP2* time is 5 seconds.When the off-board tester receives NRC$78, it switches from P2 time to P2* time.When the off-board tester receives NRC$78 again, it extends P2* time from there.
車両診断通信

[DoCAN] Vehicle Diagnostic Communication Part 49 [UDS 10]

Click here for back issues.Introduction.Explanation of ISO 14229, UDS.I will explain PositiveResponse and NegativeRespon...
車両診断通信

[DoCAN] Vehicle Diagnostic Communication Part 48 [UDS 9]

Explains the session as defined in the ISO for DiagnosticSessionControlRequest message of DiagnosticSessionControl.Response message of DiagnosticSessionControl.P2 time and P2* time of the relevant session can be obtained.
車両診断通信

[DoCAN] Vehicle Diagnostic Communication Part 47 [UDS 8]

There are five services to be realized by UDS simulationDiagnosticSessionControl.SecurityAccess.TesterPresent.ReadDataByIdentifier.WriteDataByIdentifier.When explaining the request and response messages, the CAN frame is not explained.I will only explain the ISO 14229-1 layer and not the ISO 15765-2 layer.
車両診断通信

[DoCAN] Vehicle Diagnostic Communication Part 46 [UDS 7]

Presentation of the overall structure of the USD simulation.A-COMSTACK is AUTOSAR r3.x series and OpenSAR is AUTOSAR r4.x series.Therefore, illegal construction.
車両診断通信

[DoCAN] Vehicle Diagnostic Communication Part 45 [UDS 6]

Click here for back issues.Introduction.Explanation of ISO 14229, or UDS.This time, the open source AUTOSAR, which is di...