General Motors Local Area Network

General Motors Local Area Network (GMLAN) is an application- and transport-layer protocol using controller area network for lower layer services.^[1] It was standardized as SAE J2411 for use in OBD-II vehicle networks.^[2]

Transport-layer services edit

Transport-layer services include the transmission of multi-CAN-frame messages based on the ISO 15765-2 multi-frame messaging scheme. It was developed and is used primarily by General Motors for in-vehicle communication and diagnostics.^[3] GM's Tech2 uses the CANdi (Controller Area Network diagnostic interface) adapter to communicate over GMLAN.

Applications edit

Some software applications that allow interfacing to GMLAN are Intrepid Control Systems, Inc.'s Vehicle Spy 3; Vector's CANoe; Dearborn Group's Hercules, ETAS' ES-1222, ES590, ES715, and ES580; ScanTool.net's OBDLink MX; EControls by Enovation Controls' CANCapture; and GMLAN vehicle universal remote control GMRC for Android devices

Tesla uses J2411 (single-wire CAN over the Control Pilot) for their DC Supercharger (newer units are also capable of PLC over the control pilot) and AC Destination Charging.^[4]

References edit

^ "GMW3089". Retrieved 2018-08-08. General Motors Local Area Network (GMLAN) Single Wire Controller Area Network (SWCAN) Physical and Data Link Layers Specification
^ "Controller Area Network (CAN BUS) Protocol | Free Course". Kvaser. Retrieved 2020-09-27.
^ Jeff Hartman (2004-02-13). How to Tune and Modify Engine Management Systems. Motorbooks. pp. 252–. ISBN 978-0-7603-1582-8. GMW3110
^ Johnson, Jay; Berg, Timothy; Anderson, Benjamin; Wright, Brian (2022-05-26). Review of Electric Vehicle Charger Cybersecurity Vulnerabilities, Potential Impacts, and Defenses (Technical report). US: Sandia National Laboratories. doi:10.3390/en15113931.

[1] "GMW3089". Retrieved 2018-08-08. General Motors Local Area Network (GMLAN) Single Wire Controller Area Network (SWCAN) Physical and Data Link Layers Specification

[2] "Controller Area Network (CAN BUS) Protocol | Free Course". Kvaser. Retrieved 2020-09-27.

[Hartman2004-3] Jeff Hartman (2004-02-13). How to Tune and Modify Engine Management Systems. Motorbooks. pp. 252–. ISBN 978-0-7603-1582-8. GMW3110

[4] Johnson, Jay; Berg, Timothy; Anderson, Benjamin; Wright, Brian (2022-05-26). Review of Electric Vehicle Charger Cybersecurity Vulnerabilities, Potential Impacts, and Defenses (Technical report). US: Sandia National Laboratories. doi:10.3390/en15113931.

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