Gm Global Technolgoy Operations, Inc.

Anthony Anderson

Thomas M Forest

Joseph E Ploucha

Markus Jochim

Arnold W Millsap

Jeffrey James Hoorn

Natalie Ann Wienckowski

Michael A Sowa

Kenneth M Hromada

George D Nakis

Peter H G Hansson

A system for providing privileged access to an internal vehicle communication network is provided. The system includes a presentation network bus configured to provide listen-only access to a subset of in-vehicle networks, a security system configured to enable access to the presentation network bus by verifying access credentials, and a diagnostic service system configured to control access to the presentation network bus. The diagnostic service system is configured to receive a diagnostic service request after the access credentials have been verified to enable the presentation network busses for listen-only access to the subset of the in-vehicle networks. The presentation network busses may be enabled for the listen-only access after credential verification by the security system and in response to receipt of a diagnostic service request from the diagnostic service system requesting that the presentation network busses be enabled.

Privileged, diagnostic link connector based network monitoring capabilities within a vehicle employing a gateway module used to isolate and secure vehicle networks

Systems and processes are provided for configuring sensory devices within a vehicle. In general, a system includes a computer readable storage medium that stores at least one configuration instruction. The system further includes a microprocessor configured to generate a message based on the at least one configuration instruction. The system further includes a routing device configured to communicate the message to a sensory device of the vehicle according to a virtual identifier associated with a local area network routing configuration.

Systems and methods for configuring devices in a network supporting VLANS

A network management approach for use in a vehicle to control activation of electronic control units (ECUs) networked together throughout the vehicle. The ECUs are grouped together by function into virtual networks, with each virtual network including those ECUs used in carrying out a particular control task, such as controlling power windows or automatic headlights. The virtual networks are activated using a messaging protocol that specifies which virtual network is being activated. Periodic messages specifying the virtual network are also used to maintain it active. This permits the ECUs to be maintained in a low power quiescent state when the control functions are not needed, while allowing only those needed for a particular control task to be awakened and maintained in an activated state to carry out their associated control task. An ECU can activate one of the virtual networks by transmitting a wake-up signal followed by a message identifying the virtual network. Each of the ECUs receive this message and, if it is a member of the virtual network being initialized, maintains itself in an active state to carry out the control task associated with the virtual network. The other ECUs return to the quiescent state. Using this approach, an ECU is able to activate only the necessary ECUs for a particular control task without having to know which or how many ECUs are involved in performing the task.

In-vehicle network management using virtual networks

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Macomb, MI, United States of America

Anthony Anderson