06230089 is referenced by 32 patents and cites 136 patents.

A system for communicating between a plurality of electronic control units (ECU's) located on-board a turf maintenance system is provided. The controllers are connected by a common bus network. When the ECU's boot up a primary controller sends a message out on the bus requesting a response if any secondary controllers are connected to the bus. The secondary controllers are programmed to listen for the request, to generate a message to identify itself, and to transmit the requested message to identify itself over the bus. The primary controller waits for a predetermined time to receive and identify the secondary controller message. The primary controller then polls for additional secondary controllers in a similar manner. Accordingly, the primary controller sequentially determines whether additional controllers are connected to the bus. Once the initial list of ECU's is built, the primary controller moves into a main program loop, including routines to exchange information with each of the secondary controllers which identified themselves during the polling process.

Title
Turf maintenance vehicle multiple controller method and apparatus
Application Number
8/757397
Publication Number
6230089 (B1)
Application Date
November 27, 1996
Publication Date
May 8, 2001
Inventor
James Robert Gaebel
Eden Prairie
MN, US
Eric Allen Metheny
Woodbury
MN, US
Dana R Lonn
Minneapolis
MN, US
Agent
Merchant & Gould P C
US
Assignee
The Toro Company
MN, US
IPC
G06F 11/30
View Original Source