US 12,224,880 B2
Automotive audio bus data communication protocol
Jitish Kolanjery, Milpitas, CA (US); and Ashwin Raut, Cupertino, CA (US)
Assigned to GM Cruise Holdings LLC, San Francisco, CA (US)
Filed by GM Cruise Holdings LLC, San Francisco, CA (US)
Filed on Sep. 8, 2022, as Appl. No. 17/940,745.
Prior Publication US 2024/0089144 A1, Mar. 14, 2024
Int. Cl. H04L 12/40 (2006.01); B60W 60/00 (2020.01)
CPC H04L 12/40006 (2013.01) [B60W 60/001 (2020.02)] 12 Claims
OG exemplary drawing
 
1. A method comprising:
receiving, by a first automotive audio bus manager, a request from a first automotive audio bus client for a first data transmission to a second automotive audio bus client, wherein a first size of the first data transmission exceeds a maximum data frame size;
parsing the first data transmission into a first plurality of data frames based on the first size of the first data transmission and the maximum data frame size;
sending, via an automotive audio bus, a first header frame to a second automotive audio bus manager associated with the second automotive audio bus client, wherein the first header frame includes a first indication of a first incoming long message transmission and the first size of the first data transmission; and
sending, via the automotive audio bus, the first plurality of data frames to the second automotive audio bus manager associated with the second automotive audio bus client,
wherein the automotive audio bus corresponds to a two-wire bidirectional interface.