Gm Global Technolgoy Operations, Inc.

Gary W Taraski

Timothy D Julson

Kimberley R Will

Khara D Pratt

Xinyu Du

Moshe Laifenfeld

Jan Henning Aase

Atul Nagose

Thomas M P Catsburg

Aaron B Bloom

Nathan P Makarewicz

John J Flood, Iv

Paul B Stambaugh

Paul Capalau

Robert F Kirchhoff

Gavril Cret

Joseph F McGivern

A system and method for determining that a male terminal and a female terminal are becoming disconnected in a connector as a result of the connector becoming loose or the terminals becoming corroded. The connector is a multi-terminal connector including a male terminal housing that houses a plurality of male terminals and a female terminal housing that houses a plurality of associated female terminals. One of the male terminals is a diagnostic terminal that is shorter than the other male terminals so that it is disconnected from its associated female terminal before the other male terminals when the terminal housing separate, which can be used to detect connector failure.

Prognosis of connector disconnection with canary-based short terminals

Methods and systems are provided for detection and analysis of abnormalities in a power line communication network of a vehicle. The vehicle includes various vehicle modules. The power line communication network includes power lines designed to carry electric power to the vehicle modules. Each vehicle module includes a power line communication module that is communicatively coupled to at least one of the power lines. The power line communication modules enable the power lines to communicate communication information to and from the vehicle modules. The power line communication modules can communicate pilot signals over the power line communication network. One or more of the power line communication modules includes a reflectometer module configured to perform reflectometry processing on the pilot signals to determine properties of the power line communication network.

Methods and systems for detection and analysis of abnormalities in a power line communication network of a vehicle

Modular wiring harness testing systems and apparatus are provided for testing wiring harnesses such as those used in the automotive industry. The testing apparatus is configurable (or re-configurable) to test a plurality of different types of wiring harnesses that have different configurations in terms of the number of wires, number of circuits and/or the number, size or type of connectors.

Modular wiring harness testing systems and apparatus

Methods and systems are provided for sensing electrical faults. The system includes a current sensor disposed between a battery and at least one electrical load. The current sensor is capable of sensing electrical current flowing from the battery to the load at a sensitivity sufficient to detect a current transient. The system also includes a controller in communication with the current sensor. The controller is capable of comparing the sensed current transient to a predetermined current transient for the load and signaling a fault when the sensed current transient and the predetermined current transient vary by a predetermined amount.

Vehicle electrical system fault detection

An electrical connector assembly comprises a primary connector housing, a mating connector housing, a primary lock, and a secondary lock. The primary lock is defined by both the primary connector housing and the mating connector housing. The secondary lock is supported by the mating connector housing and is arranged and configured for interacting with the primary lock so as to prevent the primary lock, when positioned in a locked position, from disengaging. The primary lock comprises a lock arm extending from the primary connector housing and a lock lever extending from the mating connector housing.

Multiple-stage interlocking electrical connector with locking assurance mechanism

Methods and systems are provided for analyzing a fault in a communication system. The system includes a diagnostic module. The diagnostic module has first through fifth control logics. The first control logic is configured to determine a topology of the communication system. The second control logic is configured to request a response from at least one module that is in electronic communication with the communication system. The third control logic is configured to receive the response. The fourth control logic is configured to analyze a characteristic of the response. The fifth control logic is configured to determine a characteristic of the fault based on the characteristic of the response.

Method and system for actively locating bus faults

A method is provided for evaluating a crimp procedure in a manufacturing process. In one embodiment, the method includes, but is not limited to, completing a crimp procedure on a single wire. The method further includes, but is not limited to, evaluating a quality of the crimp procedure based on time-domain reflectometry. The method still further includes, but is not limited to, generating reporting data based on the evaluating.

Methods and systems for measuring crimp quality

Methods and apparatus are provided for generating a vehicle specific configuration file. The method includes: determining a vehicle identification number; retrieving, based on the vehicle identification number, from at least one data storage device a bus topology, module information, at least one message identification number, and at least one message length; and generating a configuration file based on the vehicle identification number, the bus topology, the module information, the at least one message identification number, and the at least one message length.

Growing community of inventors

Oxford, MI, United States of America

Gary W Taraski