Gm Global Technolgoy Operations, Inc.

Other

James K Thomas

Kerfegar Khurshed Katrak

Thomas M Forest

Shengbing Jiang

Shige Wang

Sandeep Menon

Chang Liu

Theresa M Kondel

Monica E Dykas

Onno R Van Eikema Hommes

Richard L Schupbach

A method for monitoring a controller for a vehicle includes determining configuration information associated with the vehicle and determining vehicle operating states associated with a plurality of conditions. A statistical analysis is executed to correlate a plurality of faults with the vehicle operating states and the configuration information associated with the vehicle. The plurality of faults in the controller can be isolated to one of a hardware fault or a software fault based upon the statistical analysis and the configuration information associated with the vehicle.

Method and apparatus for monitoring an on-vehicle controller

A system and method for reconfigurable inter-processor communications in a controller. The system and method include providing multiple processors in the controller and generating a send buffer and a receive buffer for each of the processors. The system and method further include generating a send table and a receive table for each of the processors where the send table stores identifying information about messages being sent and where the receive table stores identifying information about messages being received, and providing infrastructure services that include protocols for sending and receiving messages between multiple processors in the controller.

Mechanisms and apparatus for embedded controller reconfigurable inter-processor communications

A system and method for testing a control module includes a microprocessor, where the microprocessor has a programming environment. The programming environment has a test data structure, a configuration data structure, and a monitor data structure each containing data. At least one test data instance is associated with the test data structure and at least one configuration data instance is associated with the configuration data structure. The configuration data instance is a diagnostic test that monitors a parameter of the microprocessor, and the monitor data structure creates the test data instance such that each test data instance corresponds to one of the configuration data instances. The program includes a first control logic for associating the test data structure, the configuration data structure and the monitor data structure as part of a core infrastructure portion of the programming environment, where the core infrastructure portion of the program is static.

Configurable test suite

A method of providing secure data from vehicle operational variable data that includes a plurality of data message bits includes the steps of dividing the plurality of data message bits into a first group of data message bits and a second group of data message bits, encoding the first group of data message bits using a data map to generate a plurality of encoded data message bits, and generating the data message from the plurality of encoded data message bits and the second group of data message bits.

Secure data strategy for vehicle control systems

A method is provided for formatting a message, with a first plurality of bits forming a data component, and a second plurality of bits forming a reserved component, for transmission in a vehicle. The method comprises the steps of calculating an initial checksum from the data component, calculating a revised checksum at least from the initial checksum, and storing the revised checksum in the reserved component. The number of bits in the reserved component is less than the number of bits in the data component.

Serial data communication&#x2014;CAN memory error detection methods

A method for validating a processor with a memory in a vehicle control system includes the steps of receiving a test seed, retrieving a pre-stored test key from the processor memory, calculating a check value using the test seed, and comparing the check value to the pre-stored test key.

Method and apparatus for validating processors using seed and key tests

A method and apparatus is provided for validating a plurality of variable data transmitted in an automobile, comprising generating a control copy and a redundant copy of the variable data, calculating a pre-transmittal cross-check measure using the redundant copy of the variable data, and generating a transmittal message using the control copy of the data and the pre-transmittal cross-check measure.

Method of validating plurality of data during serial communication using a dual path across a single serial link

A thread keeper to prevent undesired unwinding of thread from a spool. The unit comprises a channel shaped element with the mid portion paralleling the axis of the spool and the two arms straddling the ends of the spool. The arms have short projections that enter the ends of the cylindrical bore through the spool whereby the spool can rotate within the keeper unit. The space between the mid portion of the keeper and the thread on the spool is filled with compressible friction applying material that expands to be in continuous braking engagement with the thread as it is pulled and unwound from the spool.

Growing community of inventors

Northville, MI, United States of America

James K Thomas