Gm Global Technolgoy Operations, Inc.

Other

Bayerische Motoren Werke Aktiengesellschaft

Daimler Ag

Chrysler Group LLC

David Dean Tarby

Hanne Buur

Aubrey Walter Downs, Jr

James Mason Faucett

Stephen T West

Mark Henry Costin

James T Kurnik

First, second, and third processor modules selectively execute a test having N test states while an ignition system of the vehicle is off. N is an integer greater than one. The N test states each include: the first processor module setting a first output to a first predetermined value for one of the N test states; the second processor module setting a second output to a second predetermined value for the one of the N test states; the third processor module setting a third output to a third predetermined value for the one of the N test states; a predetermined expectation for the one of the N test states; and at least one of the first, second, and third processor modules indicating a fault when a fourth output is different than the predetermined expectation. A control module sets the fourth output based on the first, second, and third outputs.

Processor safety test control systems and methods

An inhibit path diagnostic system includes a first control module. The first control module includes a message output and transmits a first message from the message output to a controller area network (CAN) via a message transmission path. An inhibit path circuit includes the message transmission path. A second control module transmits a disable control signal to the inhibit path circuit to disable the message transmission path. The first control module transmits a second message from the message output subsequent to and based on the transmitting of the disable control signal. At least one of the first control module and the second control module detects a fault of the inhibit path circuit subsequent to the transmitting of the second message and based on a feedback signal from the CAN.

Controller area network message transmission disable testing systems and methods

A method for monitoring a main control module operative to command first and second motor control processors of a hybrid powertrain system includes signally connecting a programmable logic device to the main control module and the first and second motor control processors, communicating a first seed signal from the programmable logic device to the main control module, and determining an invalid key signal in the main control module in response to the first seed signal. The invalid key signal is communicated to the programmable logic device.

Method and apparatus for monitoring processor integrity in a distributed control module system for a powertrain system

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Chelsea, MI, United States of America

David Dean Tarby