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Title: Isolation contactor state control system

A controller area network (CAN) installed on a hybrid electric vehicle provides one node with control of high voltage power distribution system isolation contactors and the capacity to energize a secondary electro-mechanical relay device. The output of the secondary relay provides a redundant and persistent backup signal to the output of the node. The secondary relay is relatively immune to CAN message traffic interruptions and, as a result, the high voltage isolation contactor(s) are less likely to transition open in the event that the intelligent output driver should fail.
Inventors:
Issue Date:
OSTI Identifier:
1357555
Assignee:
International Truck Intellectual Property Company, LLC DOEEE
Patent Number(s):
9,649,939
Application Number:
14/398,083
Contract Number:
EE0003303
Resource Relation:
Patent File Date: 2012 Jul 13
Research Org:
International Truck Intellectual Property Company, LLC, Lisle, IL (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 33 ADVANCED PROPULSION SYSTEMS

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